/****************************************************************************
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of the QtGui module of the Qt Toolkit.
**
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** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file.  Alternatively you may (at
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** addition, as a special exception, Trolltech gives you certain
** additional rights. These rights are described in the Trolltech GPL
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** GPL_EXCEPTION.txt in this package.
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****************************************************************************/

#include <qglobal.h>

#ifndef QT_NO_STYLE_STYLESHEET

#include "qstylesheetstyle_p.h"
#include "private/qcssutil_p.h"
#include <qdebug.h>
#include <qapplication.h>
#include <qmenu.h>
#include <qmenubar.h>
#include <qpainter.h>
#include <qstyleoption.h>
#include <qlineedit.h>
#include <qwindowsstyle.h>
#include <qcombobox.h>
#include <qwindowsstyle.h>
#include <qplastiquestyle.h>
#include "private/qcssparser_p.h"
#include "private/qmath_p.h"
#include <qabstractscrollarea.h>
#include "private/qabstractscrollarea_p.h"
#include <qtooltip.h>
#include <qshareddata.h>
#include <qradiobutton.h>
#include <qtoolbutton.h>
#include <qscrollbar.h>
#include <qstring.h>
#include <qfile.h>
#include <qcheckbox.h>
#include <qstatusbar.h>
#include <qheaderview.h>
#include <qprogressbar.h>
#include <private/qwindowsstyle_p.h>
#include <qtabbar.h>
#include <QMetaProperty>
#include <qmainwindow.h>

#include <limits.h>

using namespace QCss;

class QStyleSheetStylePrivate : public QWindowsStylePrivate
{
    Q_DECLARE_PUBLIC(QStyleSheetStyle)
public:
    QStyleSheetStylePrivate() { }
};


static QHash<const QWidget *, QVector<StyleRule> > *styleRulesCache = 0;
typedef QHash<QString, QHash<int, QRenderRule> > QRenderRules;
static QHash<const QWidget *, QRenderRules> *renderRulesCache = 0;
static QHash<const QWidget *, int> *customPaletteWidgets = 0; // widgets whose palette we tampered
static QHash<const void *, StyleSheet> *styleSheetCache = 0; // parsed style sheets
static QSet<const QWidget *> *autoFillDisabledWidgets = 0;

#define ceil(x) ((int)(x) + ((x) > 0 && (x) != (int)(x)))

struct QStyleSheetBorderImageData : public QSharedData
{
    QStyleSheetBorderImageData()
    {
        for (int i = 0; i < 4; i++)
            cuts[i] = -1;
    }
    QPixmap topEdge, bottomEdge, leftEdge, rightEdge, middle;
    QRect topEdgeRect, bottomEdgeRect, leftEdgeRect, rightEdgeRect, middleRect;
    QRect topLeftCorner, topRightCorner, bottomRightCorner, bottomLeftCorner;
    int cuts[4];
    QPixmap pixmap;
    QImage image;
    QCss::TileMode horizStretch, vertStretch;

    void cutBorderImage();
};

struct QStyleSheetBackgroundData : public QSharedData
{
    QStyleSheetBackgroundData(const QBrush& b, const QPixmap& p, QCss::Repeat r,
                              Qt::Alignment a, QCss::Origin o, Attachment t, QCss::Origin c)
        : brush(b), pixmap(p), repeat(r), position(a), origin(o), attachment(t), clip(c) { }

    bool isTransparent() const {
        if (brush.style() != Qt::NoBrush)
            return !brush.isOpaque();
        return pixmap.isNull() ? false : pixmap.hasAlpha();
    }
    QBrush brush;
    QPixmap pixmap;
    QCss::Repeat repeat;
    Qt::Alignment position;
    QCss::Origin origin;
    QCss::Attachment attachment;
    QCss::Origin clip;
};

struct QStyleSheetBorderData : public QSharedData
{
    QStyleSheetBorderData() : bi(0)
    {
        for (int i = 0; i < 4; i++) {
            borders[i] = 0;
            styles[i] = QCss::BorderStyle_None;
        }
    }

    QStyleSheetBorderData(int *b, QBrush *c, QCss::BorderStyle *s, QSize *r) : bi(0)
    {
        for (int i = 0; i < 4; i++) {
            borders[i] = b[i];
            styles[i] = s[i];
            colors[i] = c[i];
            radii[i] = r[i];
        }
    }

    int borders[4];
    QBrush colors[4];
    QCss::BorderStyle styles[4];
    QSize radii[4]; // topleft, topright, bottomleft, bottomright

    const QStyleSheetBorderImageData *borderImage() const
    { return bi; }
    bool hasBorderImage() const { return bi!=0; }

    QSharedDataPointer<QStyleSheetBorderImageData> bi;
};

struct QStyleSheetBoxData : public QSharedData
{
    QStyleSheetBoxData(int *m, int *p, int s) : spacing(s)
    {
        for (int i = 0; i < 4; i++) {
            margins[i] = m[i];
            paddings[i] = p[i];
        }
    }

    int margins[4];
    int paddings[4];

    int spacing;
};

struct QStyleSheetPaletteData : public QSharedData
{
    QStyleSheetPaletteData(const QBrush &fg, const QBrush &sfg, const QBrush &sbg,
                           const QBrush &abg)
        : foreground(fg), selectionForeground(sfg), selectionBackground(sbg),
          alternateBackground(abg) { }

    QBrush foreground;
    QBrush selectionForeground;
    QBrush selectionBackground;
    QBrush alternateBackground;
};

struct QStyleSheetGeometryData : public QSharedData
{
    QStyleSheetGeometryData(int w, int h, int minw, int minh, int maxw, int maxh)
        : minWidth(minw), minHeight(minh), width(w), height(h), maxWidth(maxw), maxHeight(maxh) { }

    int minWidth, minHeight, width, height, maxWidth, maxHeight;
};

struct QStyleSheetPositionData : public QSharedData
{
    QStyleSheetPositionData(int l, int t, int r, int b, Origin o, Qt::Alignment p, QCss::PositionMode m, Qt::Alignment a = 0)
        : left(l), top(t), bottom(b), right(r), origin(o), position(p), mode(m), textAlignment(a) { }

    int left, top, bottom, right;
    Origin origin;
    Qt::Alignment position;
    QCss::PositionMode mode;
    Qt::Alignment textAlignment;
};

struct QStyleSheetImageData : public QSharedData
{
    QStyleSheetImageData(const QIcon &i, Qt::Alignment a, const QSize &sz)
        : icon(i), alignment(a), size(sz) { }

    QIcon icon;
    Qt::Alignment alignment;
    QSize size;
};

class QRenderRule
{
public:
    QRenderRule() : features(0), hasFont(false), pal(0), b(0), bg(0), bd(0), geo(0), p(0), img(0), clipset(0) { }
    QRenderRule(const QVector<QCss::Declaration> &, const QWidget *);
    ~QRenderRule() { }

    QRect borderRect(const QRect &r) const;
    QRect paddingRect(const QRect &r) const;
    QRect contentsRect(const QRect &r) const;

    enum { Margin = 1, Border = 2, Padding = 4, All=Margin|Border|Padding };
    QRect boxRect(const QRect &r, int flags = All) const;
    QSize boxSize(const QSize &s, int flags = All) const;
    QRect originRect(const QRect &rect, Origin origin) const;

    bool paintsOver(Edge e1, Edge e2);
    QPainterPath borderClip(QRect rect);
    void drawBorder(QPainter *, const QRect&);
    void drawBorderImage(QPainter *, const QRect&);
    void drawBackground(QPainter *, const QRect&, const QPoint& = QPoint(0, 0));
    void drawBackgroundImage(QPainter *, const QRect&, QPoint = QPoint(0, 0));
    void drawFrame(QPainter *, const QRect&);
    void drawImage(QPainter *p, const QRect &rect);
    void drawRule(QPainter *, const QRect&);
    void configurePalette(QPalette *, QPalette::ColorGroup, const QWidget *, bool);
    void configurePalette(QPalette *p, QPalette::ColorRole fr, QPalette::ColorRole br);

    void getRadii(const QRect &br, QSize *tlr, QSize *trr, QSize *blr, QSize *brr) const;

    const QStyleSheetPaletteData *palette() const { return pal; }
    const QStyleSheetBoxData *box() const { return b; }
    const QStyleSheetBackgroundData *background() const { return bg; }
    const QStyleSheetBorderData *border() const { return bd; }
    const QStyleSheetGeometryData *geometry() const { return geo; }
    const QStyleSheetPositionData *position() const { return p; }

    bool hasPalette() const { return pal != 0; }
    bool hasBackground() const { return bg != 0; }
    bool hasGradientBackground() const { return bg && bg->brush.style() >= Qt::LinearGradientPattern
                                                   && bg->brush.style() <= Qt::ConicalGradientPattern; }

    bool hasNativeBorder() const {
        return bd == 0
               || (!bd->hasBorderImage() && bd->styles[0] == BorderStyle_Native);
    }

    bool nativeBorder() const {
        return (bd == 0
                || (!bd->hasBorderImage() && bd->styles[0] == BorderStyle_Native));
    }

    bool baseStyleCanDraw() const {
        if (!hasBackground() || background()->brush.style() == Qt::NoBrush)
            return true;
        if (hasGradientBackground())
            return features & StyleFeature_BackgroundGradient;
        return features & StyleFeature_BackgroundColor;
    }

    bool hasBox() const { return b != 0; }
    bool hasBorder() const { return bd != 0; }
    bool hasPosition() const { return p != 0; }
    bool hasGeometry() const { return geo != 0; }
    bool hasDrawable() const { return hasBorder() || hasBackground() || hasImage(); }
    bool hasImage() const { return img != 0; }

    QSize minimumContentsSize() const
    { return geo ? QSize(geo->minWidth, geo->minHeight) : QSize(0, 0); }
    QSize minimumSize() const
    { return boxSize(minimumContentsSize()); }

    QSize contentsSize() const
    { return geo ? QSize(geo->width, geo->height)
                 : ((img && img->size.isValid()) ? img->size : QSize()); }
    QSize contentsSize(const QSize &sz) const
    {
        QSize csz = contentsSize();
        if (csz.width() == -1) csz.setWidth(sz.width());
        if (csz.height() == -1) csz.setHeight(sz.height());
        return csz;
    }
    bool hasContentsSize() const
    { return (geo && (geo->width != -1 || geo->height != -1)) || (img && img->size.isValid()); }

    QSize size() const { return boxSize(contentsSize()); }
    QSize size(const QSize &sz) const { return boxSize(contentsSize(sz)); }

    int features;
    QBrush defaultBackground;
    QFont font;
    bool hasFont;

    QHash<QString, int> styleHints;
    bool hasStyleHint(const QString& sh) const { return styleHints.contains(sh); }
    int styleHint(const QString& sh) const { return styleHints.value(sh); }

    void fixupBorder(int);

    QSharedDataPointer<QStyleSheetPaletteData> pal;
    QSharedDataPointer<QStyleSheetBoxData> b;
    QSharedDataPointer<QStyleSheetBackgroundData> bg;
    QSharedDataPointer<QStyleSheetBorderData> bd;
    QSharedDataPointer<QStyleSheetGeometryData> geo;
    QSharedDataPointer<QStyleSheetPositionData> p;
    QSharedDataPointer<QStyleSheetImageData> img;

    // Shouldn't be here
    void setClip(QPainter *p, const QRect &rect);
    void unsetClip(QPainter *);
    int clipset;
    QPainterPath clipPath;
};

///////////////////////////////////////////////////////////////////////////////////////////
static const char *knownStyleHints[] = {
    "activate-on-singleclick",
    "alignment",
    "button-layout",
    "combobox-list-mousetracking",
    "combobox-popup",
    "dither-disable-text",
    "etch-disabled-text",
    "gridline-color",
    "lineedit-password-character",
    "menubar-altkey-navigation",
    "menubar-separator",
    "menu-scrollable",
    "messagebox-text-interaction-flags",
    "mouse-tracking",
    "opacity",
    "scrollbar-contextmenu",
    "scrollbar-leftclick-absolute-position",
    "scrollbar-middleclick-absolute-position",
    "scrollbar-roll-between-buttons",
    "scrollbar-scroll-when-pointer-leaves-control",
    "scrollview-frame-around-contents",
    "show-decoration-selected",
    "spinbox-click-autorepeat-rate",
    "spincontrol-disable-on-bounds",
    "tabbar-elide-mode",
    "tabbar-prefer-no-arrows",
    "toolbutton-popup-delay"
};

static const int numKnownStyleHints = sizeof(knownStyleHints)/sizeof(knownStyleHints[0]);

QRenderRule::QRenderRule(const QVector<Declaration> &declarations, const QWidget *widget)
: features(0), hasFont(false), pal(0), b(0), bg(0), bd(0), geo(0), p(0), img(0), clipset(0)
{
    Q_ASSERT(widget);
    QPalette palette = qApp->palette(); // ###: ideally widget's palette
    ValueExtractor v(declarations, palette);
    features = v.extractStyleFeatures();

    int w = -1, h = -1, minw = -1, minh = -1, maxw = -1, maxh = -1;
    if (v.extractGeometry(&w, &h, &minw, &minh, &maxw, &maxh))
        geo = new QStyleSheetGeometryData(w, h, minw, minh, maxw, maxh);

    int left = 0, top = 0, right = 0, bottom = 0;
    Origin origin = Origin_Unknown;
    Qt::Alignment position = 0;
    QCss::PositionMode mode = PositionMode_Unknown;
    Qt::Alignment textAlignment = 0;
    if (v.extractPosition(&left, &top, &right, &bottom, &origin, &position, &mode, &textAlignment))
        p = new QStyleSheetPositionData(left, top, right, bottom, origin, position, mode, textAlignment);

    int margins[4], paddings[4], spacing = -1;
    for (int i = 0; i < 4; i++)
        margins[i] = paddings[i] = 0;
    if (v.extractBox(margins, paddings, &spacing))
        b = new QStyleSheetBoxData(margins, paddings, spacing);

    int borders[4];
    QBrush colors[4];
    QCss::BorderStyle styles[4];
    QSize radii[4];
    for (int i = 0; i < 4; i++) {
        borders[i] = 0;
        styles[i] = BorderStyle_None;
    }
    if (v.extractBorder(borders, colors, styles, radii))
        bd = new QStyleSheetBorderData(borders, colors, styles, radii);

    QBrush brush;
    QString uri;
    Repeat repeat = Repeat_XY;
    Qt::Alignment alignment = Qt::AlignTop | Qt::AlignLeft;
    Attachment attachment = Attachment_Scroll;
    origin = Origin_Padding;
    Origin clip = Origin_Border;
    if (v.extractBackground(&brush, &uri, &repeat, &alignment, &origin, &attachment, &clip))
        bg = new QStyleSheetBackgroundData(brush, QPixmap(uri), repeat, alignment, origin, attachment, clip);

    QBrush sfg, fg;
    QBrush sbg, abg;
    if (v.extractPalette(&fg, &sfg, &sbg, &abg))
        pal = new QStyleSheetPaletteData(fg, sfg, sbg, abg);

    QIcon icon;
    alignment = Qt::AlignCenter;
    QSize size;
    if (v.extractImage(&icon, &alignment, &size))
        img = new QStyleSheetImageData(icon, alignment, size);

    int adj = -255;
    hasFont = v.extractFont(&font, &adj);

#ifndef QT_NO_TOOLTIP
    if (QString::fromLatin1(widget->metaObject()->className()) == QLatin1String("QTipLabel"))
        palette = QToolTip::palette();
#endif

    for (int i = 0; i < declarations.count(); i++) {
        const Declaration& decl = declarations.at(i);
        if (decl.propertyId == BorderImage) {
            QString uri;
            QCss::TileMode horizStretch, vertStretch;
            int cuts[4];

            decl.borderImageValue(&uri, cuts, &horizStretch, &vertStretch);
            if (uri.isEmpty() || uri == QLatin1String("none")) {
                if (bd && bd->bi)
                    bd->bi->pixmap = QPixmap();
            } else {
                if (!bd)
                    bd = new QStyleSheetBorderData;
                if (!bd->bi)
                    bd->bi = new QStyleSheetBorderImageData;

                QStyleSheetBorderImageData *bi = bd->bi;
                bi->pixmap = QPixmap(uri);
                for (int i = 0; i < 4; i++)
                    bi->cuts[i] = cuts[i];
                bi->horizStretch = horizStretch;
                bi->vertStretch = vertStretch;
            }
        } else if (decl.propertyId == QtBackgroundRole) {
            if (bg && bg->brush.style() != Qt::NoBrush)
                continue;
            int role = decl.values.first().variant.toInt();
            if (role >= Value_FirstColorRole && role <= Value_LastColorRole)
                defaultBackground = palette.color((QPalette::ColorRole)(role-Value_FirstColorRole));
        } else if (decl.property.startsWith(QLatin1String("qproperty-"), Qt::CaseInsensitive)) {
        } else if (decl.propertyId == UnknownProperty) {
            bool knownStyleHint = false;
            for (int i = 0; i < numKnownStyleHints; i++) {
                QLatin1String styleHint(knownStyleHints[i]);
                if (decl.property.compare(styleHint) == 0) {
                   int hint;
                   if (QString(styleHint).endsWith(QLatin1String("alignment"))) {
                       hint = (int) decl.alignmentValue();
                   } else {
                       decl.intValue(&hint);
                   }
                   styleHints[decl.property] = hint;
                   knownStyleHint = true;
                   break;
                }
            }
            if (!knownStyleHint)
                qWarning("Unknown property %s", qPrintable(decl.property));
        }
    }

    QStyleSheetStyle *style = qobject_cast<QStyleSheetStyle *>(widget->style());
    Q_ASSERT(style);
    fixupBorder(style->nativeFrameWidth(widget));
    if (hasBorder() && border()->hasBorderImage())
        defaultBackground = QBrush();
}

QRect QRenderRule::borderRect(const QRect& r) const
{
    if (!hasBox())
        return r;
    const int* m = box()->margins;
    return r.adjusted(m[LeftEdge], m[TopEdge], -m[RightEdge], -m[BottomEdge]);
}

QRect QRenderRule::paddingRect(const QRect& r) const
{
    QRect br = borderRect(r);
    if (!hasBorder())
        return br;
    const int *b = border()->borders;
    return br.adjusted(b[LeftEdge], b[TopEdge], -b[RightEdge], -b[BottomEdge]);
}

QRect QRenderRule::contentsRect(const QRect& r) const
{
    QRect pr = paddingRect(r);
    if (!hasBox())
        return pr;
    const int *p = box()->paddings;
    return pr.adjusted(p[LeftEdge], p[TopEdge], -p[RightEdge], -p[BottomEdge]);
}

QRect QRenderRule::boxRect(const QRect& cr, int flags) const
{
    QRect r = cr;
    if (hasBox()) {
        if (flags & Margin) {
            const int *m = box()->margins;
            r.adjust(-m[LeftEdge], -m[TopEdge], m[RightEdge], m[BottomEdge]);
        }
        if (flags & Padding) {
            const int *p = box()->paddings;
            r.adjust(-p[LeftEdge], -p[TopEdge], p[RightEdge], p[BottomEdge]);
        }
    }
    if (hasBorder() && (flags & Border)) {
        const int *b = border()->borders;
        r.adjust(-b[LeftEdge], -b[TopEdge], b[RightEdge], b[BottomEdge]);
    }
    return r;
}

QSize QRenderRule::boxSize(const QSize &cs, int flags) const
{
    QSize bs = boxRect(QRect(QPoint(0, 0), cs), flags).size();
    if (cs.width() < 0) bs.setWidth(-1);
    if (cs.height() < 0) bs.setHeight(-1);
    return bs;
}

void QRenderRule::fixupBorder(int nativeWidth)
{
    if (bd == 0)
        return;

    if (!bd->hasBorderImage() || bd->bi->pixmap.isNull()) {
        bd->bi = 0;
        // ignore the color, border of edges that have none border-style
        QBrush color = pal ? pal->foreground : QBrush();
        const bool hasRadius = bd->radii[0].isValid() || bd->radii[1].isValid()
                               || bd->radii[2].isValid() || bd->radii[3].isValid();
        for (int i = 0; i < 4; i++) {
            if ((bd->styles[i] == BorderStyle_Native) && hasRadius)
                bd->styles[i] = BorderStyle_None;

            switch (bd->styles[i]) {
            case BorderStyle_None:
                // border-style: none forces width to be 0
                bd->colors[i] = QBrush();
                bd->borders[i] = 0;
                break;
            case BorderStyle_Native:
                if (bd->borders[i] == 0)
                    bd->borders[i] = nativeWidth;
                // intentional fall through
            default:
                if (!bd->colors[i].style() != Qt::NoBrush) // auto-acquire 'color'
                    bd->colors[i] = color;
                break;
            }
        }

        return;
    }

    // inspect the border image
    QStyleSheetBorderImageData *bi = bd->bi;
    if (bi->cuts[0] == -1) {
        for (int i = 0; i < 4; i++) // assume, cut = border
            bi->cuts[i] = int(border()->borders[i]);
    }
    bi->cutBorderImage();
}

void QStyleSheetBorderImageData::cutBorderImage()
{
    const int w = pixmap.width();
    const int h = pixmap.height();
    const int &l = cuts[LeftEdge], &r = cuts[RightEdge],
              &t = cuts[TopEdge], &b = cuts[BottomEdge];

    topEdgeRect = QRect(l, 0, w - r - l, t);
    bottomEdgeRect = QRect(l, h - b, w - l - r, b);
    if (horizStretch != TileMode_Stretch) {
        if (topEdgeRect.isValid())
            topEdge = pixmap.copy(topEdgeRect).scaledToHeight(t);
        if (bottomEdgeRect.isValid())
            bottomEdge = pixmap.copy(bottomEdgeRect).scaledToHeight(b);
    }

    leftEdgeRect = QRect(0, t, l, h - b - t);
    rightEdgeRect = QRect(w - r, t, r, h - t- b);
    if (vertStretch != TileMode_Stretch) {
        if (leftEdgeRect.isValid())
            leftEdge = pixmap.copy(leftEdgeRect).scaledToWidth(l);
        if (rightEdgeRect.isValid())
            rightEdge = pixmap.copy(rightEdgeRect).scaledToWidth(r);
    }

    middleRect = QRect(l, t, w - r -l, h - t - b);
    if (middleRect.isValid()
        && !(horizStretch == TileMode_Stretch && vertStretch == TileMode_Stretch)) {
        middle = pixmap.copy(middleRect);
    }
}

// Determines if Edge e1 draws over Edge e2. Depending on this trapezoids or rectanges are drawn
bool QRenderRule::paintsOver(Edge e1, Edge e2)
{
    BorderStyle s1 = bd->styles[e1];
    BorderStyle s2 = bd->styles[e2];

    if (s2 == BorderStyle_None || bd->colors[e2] == Qt::transparent)
        return true;

    if ((s1 == BorderStyle_Solid && s2 == BorderStyle_Solid) && (bd->colors[e1] == bd->colors[e2]))
        return true;

    return false;
}

static void qDrawCenterTiledPixmap(QPainter *p, const QRectF& r, const QPixmap& pix)
{
    p->drawTiledPixmap(r, pix, QPoint(pix.width() - int(r.width())%pix.width(),
                                      pix.height() - int(r.height())%pix.height()));
}

// Note: Round is not supported
void QRenderRule::drawBorderImage(QPainter *p, const QRect& rect)
{
    setClip(p, rect);
    const QRectF br(rect);
    const int *borders = border()->borders;
    const int &l = borders[LeftEdge], &r = borders[RightEdge],
              &t = borders[TopEdge],  &b = borders[BottomEdge];
    QRectF pr = br.adjusted(l, t, -r, -b);

    bool wasSmoothPixmapTransform = p->renderHints() & QPainter::SmoothPixmapTransform;
    p->setRenderHint(QPainter::SmoothPixmapTransform);

    const QStyleSheetBorderImageData *bi = border()->borderImage();
    const QPixmap& pix = bi->pixmap;
    const int *c = bi->cuts;
    QRectF tlc(0, 0, c[LeftEdge], c[TopEdge]);
    if (tlc.isValid())
        p->drawPixmap(QRectF(br.topLeft(), QSizeF(l, t)), pix, tlc);
    QRectF trc(pix.width() - c[RightEdge], 0, c[RightEdge], c[TopEdge]);
    if (trc.isValid())
        p->drawPixmap(QRectF(br.left() + br.width() - r, br.y(), r, t), pix, trc);
    QRectF blc(0, pix.height() - c[BottomEdge], c[LeftEdge], c[BottomEdge]);
    if (blc.isValid())
        p->drawPixmap(QRectF(br.x(), br.y() + br.height() - b, l, b), pix, blc);
    QRectF brc(pix.width() - c[RightEdge], pix.height() - c[BottomEdge],
               c[RightEdge], c[BottomEdge]);
    if (brc.isValid())
        p->drawPixmap(QRectF(br.x() + br.width() - r, br.y() + br.height() - b, r, b),
                      pix, brc);

    QRectF topEdgeRect(br.x() + l, br.y(), pr.width(), t);
    QRectF bottomEdgeRect(br.x() + l, br.y() + br.height() - b, pr.width(), b);

    switch (bi->horizStretch) {
    case TileMode_Stretch:
        if (bi->topEdgeRect.isValid())
            p->drawPixmap(topEdgeRect, pix, bi->topEdgeRect);
        if (bi->bottomEdgeRect.isValid())
            p->drawPixmap(bottomEdgeRect, pix, bi->bottomEdgeRect);
        if (bi->middleRect.isValid()) {
            if (bi->vertStretch == TileMode_Stretch)
                p->drawPixmap(pr, pix, bi->middleRect);
            else if (bi->vertStretch == TileMode_Repeat) {
                QPixmap scaled = bi->middle.scaled(int(pr.width()), bi->middle.height());
                qDrawCenterTiledPixmap(p, pr, scaled);
            }
        }
        break;
    case TileMode_Repeat:
        if (!bi->topEdge.isNull())
            qDrawCenterTiledPixmap(p, topEdgeRect, bi->topEdge);
        if (!bi->bottomEdge.isNull())
            qDrawCenterTiledPixmap(p, bottomEdgeRect, bi->bottomEdge);
        if (bi->middleRect.isValid()) {
            if (bi->vertStretch == TileMode_Repeat) {
                qDrawCenterTiledPixmap(p, pr, bi->middle);
            } else if (bi->vertStretch == TileMode_Stretch) {
                QPixmap scaled = bi->middle.scaled(bi->middle.width(), int(pr.height()));
                qDrawCenterTiledPixmap(p, pr, scaled);
            }
        }
        break;
    case TileMode_Round:
        if (!bi->topEdge.isNull()) {
            int rwh = (int)pr.width()/ceil(pr.width()/bi->topEdge.width());
            QPixmap scaled = bi->topEdge.scaled(rwh, bi->topEdge.height());
            int blank = int(pr.width()) % rwh;
            p->drawTiledPixmap(QRectF(br.x() + l + blank/2, br.y(), pr.width() - blank, t),
                               scaled);
        }
        if (!bi->bottomEdge.isNull()) {
            int rwh = (int) pr.width()/ceil(pr.width()/bi->bottomEdge.width());
            QPixmap scaled = bi->bottomEdge.scaled(rwh, bi->bottomEdge.height());
            int blank = int(pr.width()) % rwh;
            p->drawTiledPixmap(QRectF(br.x() + l+ blank/2, br.y()+br.height()-b,
                                      pr.width() - blank, b), scaled);
        }
        break;
    default:
        break;
    }

    QRectF leftEdgeRect(br.x(), br.y() + t, l, pr.height());
    QRectF rightEdgeRect(br.x() + br.width()- r, br.y() + t, r, pr.height());

    switch (bi->vertStretch) {
    case TileMode_Stretch:
         if (bi->leftEdgeRect.isValid())
              p->drawPixmap(leftEdgeRect, pix, bi->leftEdgeRect);
        if (bi->rightEdgeRect.isValid())
            p->drawPixmap(rightEdgeRect, pix, bi->rightEdgeRect);
        break;
    case TileMode_Repeat:
        if (!bi->leftEdge.isNull())
            qDrawCenterTiledPixmap(p, leftEdgeRect, bi->leftEdge);
        if (!bi->rightEdge.isNull())
            qDrawCenterTiledPixmap(p, rightEdgeRect, bi->rightEdge);
        break;
    case TileMode_Round:
        if (!bi->leftEdge.isNull()) {
            int rwh = (int) pr.height()/ceil(pr.height()/bi->leftEdge.height());
            QPixmap scaled = bi->leftEdge.scaled(bi->leftEdge.width(), rwh);
            int blank = int(pr.height()) % rwh;
            p->drawTiledPixmap(QRectF(br.x(), br.y() + t + blank/2, l, pr.height() - blank),
                               scaled);
        }
        if (!bi->rightEdge.isNull()) {
            int rwh = (int) pr.height()/ceil(pr.height()/bi->rightEdge.height());
            QPixmap scaled = bi->rightEdge.scaled(bi->rightEdge.width(), rwh);
            int blank = int(pr.height()) % rwh;
            p->drawTiledPixmap(QRectF(br.x() + br.width() - r, br.y()+t+blank/2, r,
                                      pr.height() - blank), scaled);
        }
        break;
    default:
        break;
    }

    p->setRenderHint(QPainter::SmoothPixmapTransform, wasSmoothPixmapTransform);
    unsetClip(p);
}

QRect QRenderRule::originRect(const QRect &rect, Origin origin) const
{
    switch (origin) {
    case Origin_Padding:
        return paddingRect(rect);
    case Origin_Border:
        return borderRect(rect);
    case Origin_Content:
        return contentsRect(rect);
    case Origin_Margin:
    default:
        return rect;
    }
}

void QRenderRule::drawBackgroundImage(QPainter *p, const QRect &rect, QPoint off)
{
    if (!hasBackground())
        return;

    const QPixmap& bgp = background()->pixmap;
    if (bgp.isNull())
        return;

    setClip(p, borderRect(rect));

    if (background()->origin != background()->clip) {
        p->save();
        p->setClipRect(originRect(rect, background()->clip), Qt::IntersectClip);
    }

    if (background()->attachment == Attachment_Fixed)
        off = QPoint(0, 0);

    QRect r = originRect(rect, background()->origin);
    QRect aligned = QStyle::alignedRect(Qt::LeftToRight, background()->position, bgp.size(), r);
    QRect inter = aligned.intersected(r);

    switch (background()->repeat) {
    case Repeat_Y:
        p->drawTiledPixmap(inter.x(), r.y(), inter.width(), r.height(), bgp,
                           inter.x() - aligned.x() + off.x(),
                           bgp.height() - int(aligned.y() - r.y()) % bgp.height() + off.y());
        break;
    case Repeat_X:
        p->drawTiledPixmap(r.x(), inter.y(), r.width(), inter.height(), bgp,
                           bgp.width() - int(aligned.x() - r.x())%bgp.width() + off.x(),
                           inter.y() - aligned.y() + off.y());
        break;
    case Repeat_XY:
        p->drawTiledPixmap(r, bgp,
                           QPoint(bgp.width() - int(aligned.x() - r.x())% bgp.width() + off.x(),
                                  bgp.height() - int(aligned.y() - r.y())%bgp.height() + off.y()));
        break;
    case Repeat_None:
    default:
        p->drawPixmap(inter.x(), inter.y(), bgp, inter.x() - aligned.x() + off.x(),
                      inter.y() - aligned.y() + off.y(), inter.width(), inter.height());
        break;
    }


    if (background()->origin != background()->clip)
        p->restore();

    unsetClip(p);
}

void QRenderRule::getRadii(const QRect &br, QSize *tlr, QSize *trr, QSize *blr, QSize *brr) const
{
    Q_ASSERT(hasBorder());
    const QSize *radii = border()->radii;
    *tlr = radii[0].expandedTo(QSize(0, 0));
    *trr = radii[1].expandedTo(QSize(0, 0));
    *blr = radii[2].expandedTo(QSize(0, 0));
    *brr = radii[3].expandedTo(QSize(0, 0));
    if (tlr->width() + trr->width() > br.width())
        *tlr = *trr = QSize(0, 0);
    if (blr->width() + brr->width() > br.width())
        *blr = *brr = QSize(0, 0);
    if (tlr->height() + blr->height() > br.height())
        *tlr = *blr = QSize(0, 0);
    if (trr->height() + brr->height() > br.height())
        *trr = *brr = QSize(0, 0);
}

void QRenderRule::drawBorder(QPainter *p, const QRect& rect)
{
    if (!hasBorder())
        return;

    const QRectF br(rect);
    if (border()->hasBorderImage()) {
        drawBorderImage(p, rect);
        return;
    }

    const BorderStyle *styles = border()->styles;
    const int *borders = border()->borders;
    const QBrush *colors = border()->colors;

    QSize tlr, trr, blr, brr;
    getRadii(rect, &tlr, &trr, &blr, &brr);

    bool wasAntialiased = p->renderHints() & QPainter::Antialiasing;
    p->setRenderHint(QPainter::Antialiasing);

    // Drawn in increasing order of precendence
    if (styles[BottomEdge] != BorderStyle_None) {
        qreal dw1 = (blr.width() || paintsOver(BottomEdge, LeftEdge)) ? 0 : borders[LeftEdge];
        qreal dw2 = (brr.width() || paintsOver(BottomEdge, RightEdge)) ? 0 : borders[RightEdge];
        qreal x1 = br.x() + blr.width();
        qreal y1 = br.y() + br.height() - borders[BottomEdge];
        qreal x2 = br.x() + br.width() - brr.width();
        qreal y2 = br.y() + br.height() ;

        qDrawEdge(p, x1, y1, x2, y2, dw1, dw2, BottomEdge, styles[BottomEdge], colors[BottomEdge]);
        if (blr.width() || brr.width())
            qDrawRoundedCorners(p, x1, y1, x2, y2, blr, brr, BottomEdge, styles[BottomEdge], colors[BottomEdge]);
    }
    if (styles[RightEdge] != BorderStyle_None) {
        qreal dw1 = (trr.height() || paintsOver(RightEdge, TopEdge)) ? 0 : borders[TopEdge];
        qreal dw2 = (brr.height() || paintsOver(RightEdge, BottomEdge)) ? 0 : borders[BottomEdge];
        qreal x1 = br.x() + br.width() - borders[RightEdge];
        qreal y1 = br.y() + trr.height();
        qreal x2 = br.x() + br.width();
        qreal y2 = br.y() + br.height() - brr.height();

        qDrawEdge(p, x1, y1, x2, y2, dw1, dw2, RightEdge, styles[RightEdge], colors[RightEdge]);
        if (trr.height() || brr.height())
            qDrawRoundedCorners(p, x1, y1, x2, y2, trr, brr, RightEdge, styles[RightEdge], colors[RightEdge]);
    }
    if (styles[LeftEdge] != BorderStyle_None) {
        qreal dw1 = (tlr.height() || paintsOver(LeftEdge, TopEdge)) ? 0 : borders[TopEdge];
        qreal dw2 = (blr.height() || paintsOver(LeftEdge, BottomEdge)) ? 0 : borders[BottomEdge];
        qreal x1 = br.x();
        qreal y1 = br.y() + tlr.height();
        qreal x2 = br.x() + borders[LeftEdge];
        qreal y2 = br.y() + br.height() - blr.height();

        qDrawEdge(p, x1, y1, x2, y2, dw1, dw2, LeftEdge, styles[LeftEdge], colors[LeftEdge]);
        if (tlr.height() || blr.height())
            qDrawRoundedCorners(p, x1, y1, x2, y2, tlr, blr, LeftEdge, styles[LeftEdge], colors[LeftEdge]);
    }
    if (styles[TopEdge] != BorderStyle_None) {
        qreal dw1 = (tlr.width() || paintsOver(TopEdge, LeftEdge)) ? 0 : borders[LeftEdge];
        qreal dw2 = (trr.width() || paintsOver(TopEdge, RightEdge)) ? 0 : borders[RightEdge];
        qreal x1 = br.x() + tlr.width();
        qreal y1 = br.y();
        qreal x2 = br.left() + br.width() - trr.width();
        qreal y2 = br.y() + borders[TopEdge];

        qDrawEdge(p, x1, y1, x2, y2, dw1, dw2, TopEdge, styles[TopEdge], colors[TopEdge]);
        if (tlr.width() || trr.width())
            qDrawRoundedCorners(p, x1, y1, x2, y2, tlr, trr, TopEdge, styles[TopEdge], colors[TopEdge]);
    }

    p->setRenderHint(QPainter::Antialiasing, wasAntialiased);
}

QPainterPath QRenderRule::borderClip(QRect r)
{
    if (!hasBorder())
        return QPainterPath();

    QSize tlr, trr, blr, brr;
    getRadii(r, &tlr, &trr, &blr, &brr);
    if (tlr.isNull() && trr.isNull() && blr.isNull() && brr.isNull())
        return QPainterPath();

    const QRectF rect(r);
    const int *borders = border()->borders;
    QPainterPath path;
    qreal curY = rect.y() + borders[TopEdge]/2.0;
    path.moveTo(rect.x() + tlr.width(), curY);
    path.lineTo(rect.right() - trr.width(), curY);
    qreal curX = rect.right() - borders[RightEdge]/2.0;
    path.arcTo(curX - 2*trr.width() + borders[RightEdge], curY,
               trr.width()*2 - borders[RightEdge], trr.height()*2 - borders[TopEdge], 90, -90);

    path.lineTo(curX, rect.bottom() - brr.height());
    curY = rect.bottom() - borders[BottomEdge]/2.0;
    path.arcTo(curX - 2*brr.width() + borders[RightEdge], curY - 2*brr.height() + borders[BottomEdge],
               brr.width()*2 - borders[RightEdge], brr.height()*2 - borders[BottomEdge], 0, -90);

    path.lineTo(rect.x() + blr.width(), curY);
    curX = rect.left() + borders[LeftEdge]/2.0;
    path.arcTo(curX, rect.bottom() - 2*blr.height() + borders[BottomEdge]/2,
               blr.width()*2 - borders[LeftEdge], blr.height()*2 - borders[BottomEdge], 270, -90);

    path.lineTo(curX, rect.top() + tlr.height());
    path.arcTo(curX, rect.top() + borders[TopEdge]/2,
               tlr.width()*2 - borders[LeftEdge], tlr.height()*2 - borders[TopEdge], 180, -90);

    path.closeSubpath();
    return path;
}

void QRenderRule::setClip(QPainter *p, const QRect &rect)
{
    if (clipset++)
        return;
    clipPath = borderClip(rect);
    if (!clipPath.isEmpty()) {
        p->save();
        p->setClipPath(clipPath);
    }
}

void QRenderRule::unsetClip(QPainter *p)
{
    if (--clipset)
        return;
    if (!clipPath.isEmpty())
        p->restore();
}

void QRenderRule::drawBackground(QPainter *p, const QRect& rect, const QPoint& off)
{
    setClip(p, borderRect(rect));
    QBrush brush = hasBackground() ? background()->brush : QBrush();
    if (brush.style() == Qt::NoBrush)
        brush = defaultBackground;

    if (brush.style() != Qt::NoBrush) {
        Origin origin = hasBackground() ? background()->clip : Origin_Border;
        // ### fix for  gradients
        p->fillRect(originRect(rect, origin), brush);
    }

    drawBackgroundImage(p, rect, off);
    unsetClip(p);
}

void QRenderRule::drawFrame(QPainter *p, const QRect& rect)
{
    drawBackground(p, rect);
    if (hasBorder())
        drawBorder(p, borderRect(rect));
}

void QRenderRule::drawImage(QPainter *p, const QRect &rect)
{
    if (!hasImage())
        return;
    img->icon.paint(p, rect, img->alignment);
}

void QRenderRule::drawRule(QPainter *p, const QRect& rect)
{
    drawFrame(p, rect);
    drawImage(p, contentsRect(rect));
}

// *shudder* , *horror*, *whoa* <-- what you might feel when you see the functions below
void QRenderRule::configurePalette(QPalette *p, QPalette::ColorRole fr, QPalette::ColorRole br)
{
    if (bg && bg->brush.style() != Qt::NoBrush) {
        if (br != QPalette::NoRole)
            p->setBrush(br, bg->brush);
        p->setBrush(QPalette::Window, bg->brush);
    }

    if (!hasPalette())
        return;

    if (pal->foreground.style() != Qt::NoBrush) {
        if (fr != QPalette::NoRole)
            p->setBrush(fr, pal->foreground);
        p->setBrush(QPalette::WindowText, pal->foreground);
        p->setBrush(QPalette::Text, pal->foreground);
    }
    if (pal->selectionBackground.style() != Qt::NoBrush)
        p->setBrush(QPalette::Highlight, pal->selectionBackground);
    if (pal->selectionForeground.style() != Qt::NoBrush)
        p->setBrush(QPalette::HighlightedText, pal->selectionForeground);
    if (pal->alternateBackground.style() != Qt::NoBrush)
        p->setBrush(QPalette::AlternateBase, pal->alternateBackground);
}

void QRenderRule::configurePalette(QPalette *p, QPalette::ColorGroup cg, const QWidget *w, bool embedded)
{
#ifdef QT_NO_COMBOBOX
    const bool isReadOnlyCombo = false;
#else
    const bool isReadOnlyCombo = qobject_cast<const QComboBox *>(w) != 0;
#endif

    if (bg && bg->brush.style() == Qt::SolidPattern) {
        if (isReadOnlyCombo) {
            p->setBrush(cg, QPalette::Base, bg->brush); // for windows, windowxp
            p->setBrush(cg, QPalette::Button, bg->brush); // for plastique
        } else {
            p->setBrush(cg, w->backgroundRole(), bg->brush);
            //p->setBrush(cg, QPalette::Window, bg->brush);
        }
    }

    if (embedded) {
        /* For embedded widgets (ComboBox, SpinBox and ScrollArea) we want the embedded widget
         * to be transparent when we have a transparent background or border image */
        if ((hasBackground() && background()->isTransparent())
            || (hasBorder() && border()->hasBorderImage() && border()->borderImage()->middleRect.isValid()))
            p->setBrush(cg, w->backgroundRole(), Qt::NoBrush);
    }

    if (!hasPalette())
        return;

    if (pal->foreground.style() != Qt::NoBrush) {
        if (isReadOnlyCombo) {
            p->setBrush(cg, QPalette::ButtonText, pal->foreground);
        } else {
            p->setBrush(cg, w->foregroundRole(), pal->foreground);
            p->setBrush(cg, QPalette::WindowText, pal->foreground);
        }
        p->setBrush(cg, QPalette::Text, pal->foreground);
    }
    if (pal->selectionBackground.style() != Qt::NoBrush)
        p->setBrush(cg, QPalette::Highlight, pal->selectionBackground);
    if (pal->selectionForeground.style() != Qt::NoBrush)
        p->setBrush(cg, QPalette::HighlightedText, pal->selectionForeground);
    if (pal->alternateBackground.style() != Qt::NoBrush)
        p->setBrush(cg, QPalette::AlternateBase, pal->alternateBackground);
}

///////////////////////////////////////////////////////////////////////////////
// Style rules
#define WIDGET(x) (static_cast<QWidget *>(x.ptr))

class QStyleSheetStyleSelector : public StyleSelector
{
public:
    QStyleSheetStyleSelector() { }

    bool nodeNameEquals(NodePtr node, const QString& name) const
    {
        if (WIDGET(node)->inherits(name.toLatin1()))
            return true;
#ifndef QT_NO_TOOLTIP
        if (name == QLatin1String("QToolTip")
            && QString::fromLatin1("QTipLabel")== QString::fromLatin1(WIDGET(node)->metaObject()->className()))
            return true;
#endif
        const QMetaObject *metaObject = WIDGET(node)->metaObject();
        do {
            QString className = QString::fromUtf8(metaObject->className());
            className.replace(QLatin1Char(':'), QLatin1Char('-'));
            if (className == name)
                return true;
            metaObject = metaObject->superClass();
        } while (metaObject != 0);
        return false;
    }
    QString attribute(NodePtr node, const QString& name) const
    {
        QVariant value = WIDGET(node)->property(name.toLatin1());
        if (!value.isValid()) {
            if (name == QLatin1String("class")) {
                QString className = QString::fromLatin1(WIDGET(node)->metaObject()->className());
                className.replace(QLatin1Char(':'), QLatin1Char('-'));
                return className;
            } else if (name == QLatin1String("style")) {
                QStyleSheetStyle *proxy = qobject_cast<QStyleSheetStyle *>(WIDGET(node)->style());
                if (proxy)
                    return QString::fromLatin1(proxy->baseStyle()->metaObject()->className());
            }
        }
        return value.toString();
    }
    bool hasAttribute(NodePtr node, const QString& name) const
    { return name == QLatin1String("class")
             || name == QLatin1String("style")
             || WIDGET(node)->metaObject()->indexOfProperty(name.toLatin1()) != -1
             || WIDGET(node)->dynamicPropertyNames().contains(name.toLatin1()); }
    bool hasAttributes(NodePtr) const
    { return true; }
    QStringList nodeIds(NodePtr node) const
    { return QStringList(WIDGET(node)->objectName()); }
    bool isNullNode(NodePtr node) const
    { return node.ptr == 0; }
    NodePtr parentNode(NodePtr node) const
    { NodePtr n; n.ptr = WIDGET(node)->parentWidget(); return n; }
    NodePtr previousSiblingNode(NodePtr) const
    { NodePtr n; n.ptr = 0; return n; }
    NodePtr duplicateNode(NodePtr node) const
    { return node; }
    void freeNode(NodePtr) const
    { }
};

static bool unstylable(const QWidget *w)
{
    if (w->windowType() == Qt::Desktop)
        return true;

    if (!w->styleSheet().isEmpty())
        return false;

#ifndef QT_NO_SCROLLAREA
    if (const QAbstractScrollArea *sa = qobject_cast<const QAbstractScrollArea *>(w->parentWidget())) {
        if (sa->viewport() == w)
            return true;
    }
#endif
#ifndef QT_NO_LINEEDIT
    else if (qobject_cast<const QLineEdit *>(w)) {
        if (0
#ifndef QT_NO_COMBOBOX
            || qobject_cast<const QComboBox *>(w->parentWidget())
#endif
#ifndef QT_NO_SPINBOX
            || qobject_cast<const QAbstractSpinBox *>(w->parentWidget())
#endif
            )
            return true;
    }
#endif
#ifndef QT_NO_FRAME
    // detect QComboBoxPrivateContainer
    else if (qobject_cast<const QFrame *>(w)) {
        if (0
#ifndef QT_NO_COMBOBOX
            || qobject_cast<const QComboBox *>(w->parentWidget())
#endif
           )
            return true;
    }
#endif
    return false;
}

QVector<QCss::StyleRule> QStyleSheetStyle::styleRules(const QWidget *w) const
{
    if (!w)
        return QVector<StyleRule>();

    if (styleRulesCache->contains(w))
        return styleRulesCache->value(w);

    QObject::connect(w, SIGNAL(destroyed(QObject*)), this, SLOT(widgetDestroyed(QObject*)));
    if (unstylable(w)) {
        QVector<StyleRule> emptyRule;
        styleRulesCache->insert(w, emptyRule);
        return emptyRule;
    }

    QStyleSheetStyleSelector styleSelector;

    StyleSheet defaultSs;
    if (!styleSheetCache->contains(0)) {
        Parser parser(QLatin1String(":/trolltech/stylesheet/default.qss"), true);
        if (!parser.parse(&defaultSs))
            qWarning("Could not parse default stylesheet");
        defaultSs.origin = StyleSheetOrigin_UserAgent;
        styleSheetCache->insert(0, defaultSs);
    } else {
        defaultSs = styleSheetCache->value(0);
    }
    styleSelector.styleSheets += defaultSs;

    if (!qApp->styleSheet().isEmpty()) {
        StyleSheet appSs;
        if (!styleSheetCache->contains(qApp)) {
            QString ss = qApp->styleSheet();
            if (ss.startsWith(QLatin1String("file:///")))
                ss.remove(0, 8);
            Parser parser1(ss, qApp->styleSheet() != ss);
            if (!parser1.parse(&appSs))
                qWarning("Could not parse application stylesheet");
            appSs.origin = StyleSheetOrigin_Inline;
            appSs.depth = 1;
            styleSheetCache->insert(qApp, appSs);
        } else {
            appSs = styleSheetCache->value(qApp);
        }
        styleSelector.styleSheets += appSs;
    }

    QVector<QCss::StyleSheet> widgetSs;
    for (const QWidget *wid = w; wid; wid = wid->parentWidget()) {
        StyleSheet ss;
        if (!styleSheetCache->contains(wid)) {
            Parser parser(wid->styleSheet());
            if (!parser.parse(&ss) && wid == w) {
                Parser parser2(QLatin1String("* {") + wid->styleSheet() + QLatin1String("}"));
                if (!parser2.parse(&ss))
                   qWarning("Could not parse stylesheet of widget %p", wid);
            }
            ss.origin = StyleSheetOrigin_Inline;
            styleSheetCache->insert(wid, ss);
        } else {
            ss = styleSheetCache->value(wid);
        }
        widgetSs.prepend(ss);
    }

    for (int i = 0; i < widgetSs.count(); i++)
        widgetSs[i].depth = i + 2;

    styleSelector.styleSheets += widgetSs;

    StyleSelector::NodePtr n;
    n.ptr = (void *)w;
    QVector<QCss::StyleRule> rules = styleSelector.styleRulesForNode(n);
    if (w->property("_q_stylesheet_polished").toBool() == true)
        styleRulesCache->insert(w, rules);
    return rules;
}

/////////////////////////////////////////////////////////////////////////////////////////
// Rendering rules
enum PseudoElement {
    PseudoElement_None,
    PseudoElement_DownArrow,
    PseudoElement_UpArrow,
    PseudoElement_LeftArrow,
    PseudoElement_RightArrow,
    PseudoElement_Indicator,
    PseudoElement_ExclusiveIndicator,
    PseudoElement_PushButtonMenuIndicator,
    PseudoElement_ComboBoxDropDown,
    PseudoElement_ComboBoxArrow,
    PseudoElement_Item,
    PseudoElement_SpinBoxUpButton,
    PseudoElement_SpinBoxUpArrow,
    PseudoElement_SpinBoxDownButton,
    PseudoElement_SpinBoxDownArrow,
    PseudoElement_GroupBoxTitle,
    PseudoElement_GroupBoxIndicator,
    PseudoElement_ToolButtonMenu,
    PseudoElement_ToolButtonMenuArrow,
    PseudoElement_ToolButtonDownArrow,
    PseudoElement_ToolBoxTab,
    PseudoElement_ScrollBarSlider,
    PseudoElement_ScrollBarAddPage,
    PseudoElement_ScrollBarSubPage,
    PseudoElement_ScrollBarAddLine,
    PseudoElement_ScrollBarSubLine,
    PseudoElement_ScrollBarFirst,
    PseudoElement_ScrollBarLast,
    PseudoElement_ScrollBarUpArrow,
    PseudoElement_ScrollBarDownArrow,
    PseudoElement_ScrollBarLeftArrow,
    PseudoElement_ScrollBarRightArrow,
    PseudoElement_SplitterHandle,
    PseudoElement_ToolBarHandle,
    PseudoElement_ToolBarSeparator,
    PseudoElement_MenuScroller,
    PseudoElement_MenuTearoff,
    PseudoElement_MenuCheckMark,
    PseudoElement_MenuSeparator,
    PseudoElement_MenuIcon,
    PseudoElement_MenuRightArrow,
    PseudoElement_TreeViewBranch,
    PseudoElement_HeaderViewSection,
    PseudoElement_HeaderViewUpArrow,
    PseudoElement_HeaderViewDownArrow,
    PseudoElement_ProgressBarChunk,
    PseudoElement_TabBarTab,
    PseudoElement_TabBarScroller,
    PseudoElement_TabBarTear,
    PseudoElement_SliderGroove,
    PseudoElement_SliderHandle,
    PseudoElement_SliderAddPage,
    PseudoElement_SliderSubPage,
    PseudoElement_SliderTickmark,
    PseudoElement_TabWidgetPane,
    PseudoElement_TabWidgetTabBar,
    PseudoElement_TabWidgetLeftCorner,
    PseudoElement_TabWidgetRightCorner,
    NumPseudoElements
};

struct PseudoElementInfo {
    QStyle::SubControl subControl;
    const char *name;
};

static PseudoElementInfo knownPseudoElements[NumPseudoElements] = {
    { QStyle::SC_None, "", },
    { QStyle::SC_None, "down-arrow" },
    { QStyle::SC_None, "up-arrow" },
    { QStyle::SC_None, "left-arrow" },
    { QStyle::SC_None, "right-arrow" },
    { QStyle::SC_None, "indicator" },
    { QStyle::SC_None, "indicator" },
    { QStyle::SC_None, "menu-indicator" },
    { QStyle::SC_ComboBoxArrow, "drop-down" },
    { QStyle::SC_ComboBoxArrow, "down-arrow" },
    { QStyle::SC_None, "item" },
    { QStyle::SC_SpinBoxUp, "up-button" },
    { QStyle::SC_SpinBoxUp, "up-arrow" },
    { QStyle::SC_SpinBoxDown, "down-button" },
    { QStyle::SC_SpinBoxDown, "down-arrow" },
    { QStyle::SC_GroupBoxLabel, "title" },
    { QStyle::SC_GroupBoxCheckBox, "indicator" },
    { QStyle::SC_ToolButtonMenu, "menu-button" },
    { QStyle::SC_ToolButtonMenu, "menu-arrow" },
    { QStyle::SC_None, "menu-indicator" },
    { QStyle::SC_None, "tab" },
    { QStyle::SC_ScrollBarSlider, "handle" },
    { QStyle::SC_ScrollBarAddPage, "add-page" },
    { QStyle::SC_ScrollBarSubPage, "sub-page" },
    { QStyle::SC_ScrollBarAddLine, "add-line" },
    { QStyle::SC_ScrollBarSubLine, "sub-line" },
    { QStyle::SC_ScrollBarFirst, "first" },
    { QStyle::SC_ScrollBarLast, "last" },
    { QStyle::SC_ScrollBarSubLine, "up-arrow" },
    { QStyle::SC_ScrollBarAddLine, "down-arrow" },
    { QStyle::SC_ScrollBarSubLine, "left-arrow" },
    { QStyle::SC_ScrollBarAddLine, "right-arrow" },
    { QStyle::SC_None, "handle" },
    { QStyle::SC_None, "handle" },
    { QStyle::SC_None, "separator" },
    { QStyle::SC_None, "scroller" },
    { QStyle::SC_None, "tearoff" },
    { QStyle::SC_None, "indicator" },
    { QStyle::SC_None, "separator" },
    { QStyle::SC_None, "icon" },
    { QStyle::SC_None, "right-arrow" },
    { QStyle::SC_None, "branch" },
    { QStyle::SC_None, "section" },
    { QStyle::SC_None, "down-arrow" },
    { QStyle::SC_None, "up-arrow" },
    { QStyle::SC_None, "chunk" },
    { QStyle::SC_None, "tab" },
    { QStyle::SC_None, "scroller" },
    { QStyle::SC_None, "tear" },
    { QStyle::SC_SliderGroove, "groove" },
    { QStyle::SC_SliderHandle, "handle" },
    { QStyle::SC_None, "add-page" },
    { QStyle::SC_None, "sub-page"},
    { QStyle::SC_SliderTickmarks, "tick-mark" },
    { QStyle::SC_None, "pane" },
    { QStyle::SC_None, "tab-bar" },
    { QStyle::SC_None, "left-corner" },
    { QStyle::SC_None, "right-corner" }
};

QVector<Declaration> declarations(const QVector<StyleRule> &styleRules, const QString &part, int pseudoClass = PseudoClass_Unspecified)
{
    QVector<Declaration> decls;
    for (int i = 0; i < styleRules.count(); i++) {
        const Selector& selector = styleRules.at(i).selectors.at(0);
        // Rules with pseudo elements don't cascade. This is an intentional
        // diversion for CSS
        if (part.compare(selector.pseudoElement(), Qt::CaseInsensitive) != 0)
            continue;
        int negated = 0;
        int cssClass = selector.pseudoClass(&negated);
        if ((cssClass == PseudoClass_Unspecified)
            || ((((cssClass & pseudoClass) == cssClass)) && ((negated & pseudoClass) == 0)))
            decls += styleRules.at(i).declarations;
    }
    return decls;
}

int QStyleSheetStyle::nativeFrameWidth(const QWidget *w)
{
    QStyle *base = baseStyle();

#ifndef QT_NO_SPINBOX
    if (qobject_cast<const QAbstractSpinBox *>(w))
        return base->pixelMetric(QStyle::PM_SpinBoxFrameWidth, 0, w);
#endif

#ifndef QT_NO_COMBOBOX
    if (qobject_cast<const QComboBox *>(w))
        return base->pixelMetric(QStyle::PM_ComboBoxFrameWidth, 0, w);
#endif

#ifndef QT_NO_MENU
    if (qobject_cast<const QMenu *>(w))
        return base->pixelMetric(QStyle::PM_MenuPanelWidth, 0, w);
#endif

#ifndef QT_NO_MENUBAR
    if (qobject_cast<const QMenuBar *>(w))
        return base->pixelMetric(QStyle::PM_MenuBarPanelWidth, 0, w);
#endif

    if (QString::fromLatin1(w->metaObject()->className()) == QLatin1String("QTipLabel"))
        return base->pixelMetric(QStyle::PM_ToolTipLabelFrameWidth, 0, w);

    return base->pixelMetric(QStyle::PM_DefaultFrameWidth, 0, w);
}

static int pseudoClass(QStyle::State state)
{
    int pc = (state & QStyle::State_Enabled)
             ? PseudoClass_Enabled : PseudoClass_Disabled;
    if (state & QStyle::State_Sunken)
        pc |= PseudoClass_Pressed;
    if (state & QStyle::State_MouseOver)
        pc |= PseudoClass_Hover;
    if (state & QStyle::State_HasFocus)
        pc |= PseudoClass_Focus;
    if (state & QStyle::State_On)
        pc |= PseudoClass_On;
    if (state & QStyle::State_Off)
        pc |= PseudoClass_Off;
    if (state & QStyle::State_NoChange)
        pc |= PseudoClass_Indeterminate;
    if (state & QStyle::State_Selected)
        pc |= PseudoClass_Selected;
    if (state & QStyle::State_Horizontal)
        pc |= PseudoClass_Horizontal;
    else
        pc |= PseudoClass_Vertical;
    if (state & (QStyle::State_Open | QStyle::State_On | QStyle::State_Sunken))
        pc |= PseudoClass_Open;
    else
        pc |= PseudoClass_Closed;
    if (state & QStyle::State_Children)
        pc |= PseudoClass_Children;
    if (state & QStyle::State_Sibling)
        pc |= PseudoClass_Sibling;
    if (state & QStyle::State_ReadOnly)
        pc |= PseudoClass_ReadOnly;
    if (state & QStyle::State_Item)
        pc |= PseudoClass_Item;

    return pc;
}

QRenderRule QStyleSheetStyle::renderRule(const QWidget *w, int element, int state) const
{
    if (!w)
        return QRenderRule();

    const QString part = QLatin1String(knownPseudoElements[element].name);
    if (renderRulesCache->contains(w)) {
        QHash<int, QRenderRule> &renderRules = (*renderRulesCache)[w][part];

        if (renderRules.contains(state))
            return renderRules[state]; // already computed before
    }

    QVector<Declaration> decls = declarations(styleRules(w), part, state);
    QRenderRule newRule(decls, w);
    if (w->property("_q_stylesheet_polished").toBool() == true)
        (*renderRulesCache)[w][part][state] = newRule;
    return newRule;
}

QRenderRule QStyleSheetStyle::renderRule(const QWidget *w, const QStyleOption *opt, int pseudoElement) const
{
    if (!w)
        return QRenderRule();

    int extraClass = 0;
    QStyle::State state = opt ? opt->state : QStyle::State(QStyle::State_None);

    if (const QStyleOptionComplex *complex = qstyleoption_cast<const QStyleOptionComplex *>(opt)) {
        if (pseudoElement != PseudoElement_None) {
            // if not an active subcontrol, just pass enabled/disabled
            QStyle::SubControl subControl = knownPseudoElements[pseudoElement].subControl;

            if (!(complex->activeSubControls & subControl))
                state = QStyle::State(state & (QStyle::State_Enabled | QStyle::State_Horizontal));
        }

        switch (pseudoElement) {
        case PseudoElement_ComboBoxDropDown:
        case PseudoElement_ComboBoxArrow:
            state |= (complex->state & (QStyle::State_On|QStyle::State_ReadOnly));
            break;
        case PseudoElement_SpinBoxUpButton:
        case PseudoElement_SpinBoxDownButton:
        case PseudoElement_SpinBoxUpArrow:
        case PseudoElement_SpinBoxDownArrow:
#ifndef QT_NO_SPINBOX
            if (const QStyleOptionSpinBox *sb = qstyleoption_cast<const QStyleOptionSpinBox *>(opt)) {
                bool on = false;
                bool up = pseudoElement == PseudoElement_SpinBoxUpButton
                          || pseudoElement == PseudoElement_SpinBoxUpArrow;
                if ((sb->stepEnabled & QAbstractSpinBox::StepUpEnabled) && up)
                    on = true;
                else if ((sb->stepEnabled & QAbstractSpinBox::StepDownEnabled) && !up)
                    on = true;
                state |= (on ? QStyle::State_On : QStyle::State_Off);
            }
#endif // QT_NO_SPINBOX
            break;
        case PseudoElement_GroupBoxTitle:
            state |= (complex->state & (QStyle::State_MouseOver | QStyle::State_Sunken));
            break;
        case PseudoElement_ToolButtonMenu:
        case PseudoElement_ToolButtonMenuArrow:
        case PseudoElement_ToolButtonDownArrow:
            state |= complex->state & QStyle::State_MouseOver;
            if (complex->state & QStyle::State_Sunken ||
                complex->activeSubControls & QStyle::SC_ToolButtonMenu)
                state |= QStyle::State_Sunken;
            break;
        case PseudoElement_SliderGroove:
            state |= complex->state & QStyle::State_MouseOver;
            break;
        default:
            break;
        }

        if (const QStyleOptionComboBox *combo = qstyleoption_cast<const QStyleOptionComboBox *>(opt)) {
            // QStyle::State_On is set when the popup is being shown
            // Propagate EditField Pressed state
            if (pseudoElement == PseudoElement_None
                && (complex->activeSubControls & QStyle::SC_ComboBoxEditField)
                && (!(state & QStyle::State_MouseOver))) {
                state |= QStyle::State_Sunken;
            }

            if (!combo->frame)
                extraClass |= PseudoClass_Frameless;
            if (!combo->editable)
                extraClass |= PseudoClass_ReadOnly;
            else
                extraClass |= PseudoClass_Editable;
#ifndef QT_NO_SPINBOX
        } else if (const QStyleOptionSpinBox *spin = qstyleoption_cast<const QStyleOptionSpinBox *>(opt)) {
            if (!spin->frame)
                extraClass |= PseudoClass_Frameless;
#endif // QT_NO_SPINBOX
        } else if (const QStyleOptionGroupBox *gb = qstyleoption_cast<const QStyleOptionGroupBox *>(opt)) {
            if (gb->features & QStyleOptionFrameV2::Flat)
                extraClass |= PseudoClass_Flat;
            if (gb->lineWidth == 0)
                extraClass |= PseudoClass_Frameless;
        }
    } else {
        // handle simple style options
        if (const QStyleOptionMenuItem *mi = qstyleoption_cast<const QStyleOptionMenuItem *>(opt)) {
            if (mi->menuItemType == QStyleOptionMenuItem::DefaultItem)
                extraClass |= PseudoClass_Default;
            if (mi->checkType == QStyleOptionMenuItem::Exclusive)
                extraClass |= PseudoClass_Exclusive;
            else if (mi->checkType == QStyleOptionMenuItem::NonExclusive)
                extraClass |= PseudoClass_NonExclusive;
            if (mi->checkType != QStyleOptionMenuItem::NotCheckable)
                extraClass |= (mi->checked) ? PseudoClass_Checked : PseudoClass_Unchecked;
        } else if (const QStyleOptionHeader *hdr = qstyleoption_cast<const QStyleOptionHeader *>(opt)) {
            if (hdr->position == QStyleOptionHeader::OnlyOneSection)
                extraClass |= PseudoClass_OnlyOne;
            else if (hdr->position == QStyleOptionHeader::Beginning)
                extraClass |= PseudoClass_First;
            else if (hdr->position == QStyleOptionHeader::End)
                extraClass |= PseudoClass_Last;
            else if (hdr->position == QStyleOptionHeader::Middle)
                extraClass |= PseudoClass_Middle;

            if (hdr->selectedPosition == QStyleOptionHeader::NextAndPreviousAreSelected)
                extraClass |= (PseudoClass_NextSelected | PseudoClass_PreviousSelected);
            else if (hdr->selectedPosition == QStyleOptionHeader::NextIsSelected)
                extraClass |= PseudoClass_NextSelected;
            else if (hdr->selectedPosition == QStyleOptionHeader::PreviousIsSelected)
                extraClass |= PseudoClass_PreviousSelected;
#ifndef QT_NO_TABWIDGET
        } else if (const QStyleOptionTabWidgetFrame *tab = qstyleoption_cast<const QStyleOptionTabWidgetFrame *>(opt)) {
            switch (tab->shape) {
                case QTabBar::RoundedNorth:
                case QTabBar::TriangularNorth:
                    extraClass |= PseudoClass_Top;
                    break;
                case QTabBar::RoundedSouth:
                case QTabBar::TriangularSouth:
                    extraClass |= PseudoClass_Bottom;
                    break;
                case QTabBar::RoundedEast:
                case QTabBar::TriangularEast:
                    extraClass |= PseudoClass_Left;
                    break;
                case QTabBar::RoundedWest:
                case QTabBar::TriangularWest:
                    extraClass |= PseudoClass_Right;
                    break;
                default:
                    break;
            }
#endif
#ifndef QT_NO_TABBAR
        } else if (const QStyleOptionTab *tab = qstyleoption_cast<const QStyleOptionTab *>(opt)) {
            if (tab->position == QStyleOptionTab::OnlyOneTab)
                extraClass |= PseudoClass_OnlyOne;
            else if (tab->position == QStyleOptionTab::Beginning)
                extraClass |= PseudoClass_First;
            else if (tab->position == QStyleOptionTab::End)
                extraClass |= PseudoClass_Last;
            else if (tab->position == QStyleOptionTab::Middle)
                extraClass |= PseudoClass_Middle;

            if (tab->selectedPosition == QStyleOptionTab::NextIsSelected)
                extraClass |= PseudoClass_NextSelected;
            else if (tab->selectedPosition == QStyleOptionTab::PreviousIsSelected)
                extraClass |= PseudoClass_PreviousSelected;

            switch (tab->shape) {
                case QTabBar::RoundedNorth:
                case QTabBar::TriangularNorth:
                    extraClass |= PseudoClass_Top;
                    break;
                case QTabBar::RoundedSouth:
                case QTabBar::TriangularSouth:
                    extraClass |= PseudoClass_Bottom;
                    break;
                case QTabBar::RoundedEast:
                case QTabBar::TriangularEast:
                    extraClass |= PseudoClass_Left;
                    break;
                case QTabBar::RoundedWest:
                case QTabBar::TriangularWest:
                    extraClass |= PseudoClass_Right;
                    break;
                default:
                    break;
            }
#endif // QT_NO_TABBAR
        } else if (const QStyleOptionButton *btn = qstyleoption_cast<const QStyleOptionButton *>(opt)) {
            if (btn->features & QStyleOptionButton::Flat)
                extraClass |= PseudoClass_Flat;
            if (btn->features & QStyleOptionButton::DefaultButton)
                extraClass |= PseudoClass_Default;
        } else if (const QStyleOptionFrame *frm = qstyleoption_cast<const QStyleOptionFrame *>(opt)) {
            if (frm->lineWidth == 0)
                extraClass |= PseudoClass_Frameless;
            if (const QStyleOptionFrameV2 *frame2 = qstyleoption_cast<const QStyleOptionFrameV2 *>(opt)) {
                if (frame2->features & QStyleOptionFrameV2::Flat)
                    extraClass |= PseudoClass_Flat;
            }
        }
#ifndef QT_NO_TOOLBAR
        else if (const QStyleOptionToolBar *tb = qstyleoption_cast<const QStyleOptionToolBar *>(opt)) {
            if (tb->toolBarArea == Qt::LeftToolBarArea)
                extraClass |= PseudoClass_Left;
            else if (tb->toolBarArea == Qt::RightToolBarArea)
                extraClass |= PseudoClass_Right;
            else if (tb->toolBarArea == Qt::TopToolBarArea)
                extraClass |= PseudoClass_Top;
            else if (tb->toolBarArea == Qt::BottomToolBarArea)
                extraClass |= PseudoClass_Bottom;

            if (tb->positionWithinLine == QStyleOptionToolBar::Beginning)
                extraClass |= PseudoClass_First;
            else if (tb->positionWithinLine == QStyleOptionToolBar::Middle)
                extraClass |= PseudoClass_Middle;
            else if (tb->positionWithinLine == QStyleOptionToolBar::End)
                extraClass |= PseudoClass_Last;
            else if (tb->positionWithinLine == QStyleOptionToolBar::OnlyOne)
                extraClass |= PseudoClass_OnlyOne;
        }
#endif // QT_NO_TOOLBAR
#ifndef QT_NO_TOOLBOX
        else if (const QStyleOptionToolBoxV2 *tab = qstyleoption_cast<const QStyleOptionToolBoxV2 *>(opt)) {
            if (tab->position == QStyleOptionToolBoxV2::OnlyOneTab)
                extraClass |= PseudoClass_OnlyOne;
            else if (tab->position == QStyleOptionToolBoxV2::Beginning)
                extraClass |= PseudoClass_First;
            else if (tab->position == QStyleOptionToolBoxV2::End)
                extraClass |= PseudoClass_Last;
            else if (tab->position == QStyleOptionToolBoxV2::Middle)
                extraClass |= PseudoClass_Middle;

            if (tab->selectedPosition == QStyleOptionToolBoxV2::NextIsSelected)
                extraClass |= PseudoClass_NextSelected;
            else if (tab->selectedPosition == QStyleOptionToolBoxV2::PreviousIsSelected)
                extraClass |= PseudoClass_PreviousSelected;
        }
#endif // QT_NO_TOOLBOX
#ifndef QT_NO_LINEEDIT
        // LineEdit sets Sunken flag to indicate Sunken frame (argh)
        if (const QLineEdit *lineEdit = qobject_cast<const QLineEdit *>(w)) {
            state &= ~QStyle::State_Sunken;
            if (lineEdit->hasFrame()) {
                extraClass &= ~PseudoClass_Frameless;
            } else {
                extraClass |= PseudoClass_Frameless;
            }
        } else
#endif
        { } // required for the above ifdef'ery
    }

    return renderRule(w, pseudoElement, pseudoClass(state) | extraClass);
}

bool QStyleSheetStyle::hasStyleRule(const QWidget *w, int part) const
{
    const QVector<StyleRule> &rules = styleRules(w);
    if (part == PseudoElement_None)
        return w && !rules.isEmpty();

    // ### cache the result
    QString pseudoElement = QLatin1String(knownPseudoElements[part].name);
    QVector<Declaration> declarations;
    for (int i = 0; i < rules.count(); i++) {
        const Selector& selector = rules.at(i).selectors.at(0);
        if (pseudoElement.compare(selector.pseudoElement(), Qt::CaseInsensitive) == 0)
            return true;
    }

    return false;
}

static Origin defaultOrigin(int pe)
{
    switch (pe) {
    case PseudoElement_ScrollBarAddPage:
    case PseudoElement_ScrollBarSubPage:
    case PseudoElement_ScrollBarAddLine:
    case PseudoElement_ScrollBarSubLine:
    case PseudoElement_ScrollBarFirst:
    case PseudoElement_ScrollBarLast:
    case PseudoElement_GroupBoxTitle:
    case PseudoElement_GroupBoxIndicator: // never used
    case PseudoElement_ToolButtonMenu:
    case PseudoElement_SliderAddPage:
    case PseudoElement_SliderSubPage:
        return Origin_Border;

    case PseudoElement_SpinBoxUpButton:
    case PseudoElement_SpinBoxDownButton:
    case PseudoElement_PushButtonMenuIndicator:
    case PseudoElement_ComboBoxDropDown:
    case PseudoElement_ToolButtonDownArrow:
    case PseudoElement_MenuCheckMark:
    case PseudoElement_MenuIcon:
    case PseudoElement_MenuRightArrow:
        return Origin_Padding;

    case PseudoElement_Indicator:
    case PseudoElement_ExclusiveIndicator:
    case PseudoElement_ComboBoxArrow:
    case PseudoElement_ScrollBarSlider:
    case PseudoElement_ScrollBarUpArrow:
    case PseudoElement_ScrollBarDownArrow:
    case PseudoElement_ScrollBarLeftArrow:
    case PseudoElement_ScrollBarRightArrow:
    case PseudoElement_SpinBoxUpArrow:
    case PseudoElement_SpinBoxDownArrow:
    case PseudoElement_ToolButtonMenuArrow:
    case PseudoElement_HeaderViewUpArrow:
    case PseudoElement_HeaderViewDownArrow:
    case PseudoElement_SliderGroove:
    case PseudoElement_SliderHandle:
        return Origin_Content;

    default:
        return Origin_Margin;
    }
}

static Qt::Alignment defaultPosition(int pe)
{
    switch (pe) {
    case PseudoElement_Indicator:
    case PseudoElement_ExclusiveIndicator:
    case PseudoElement_MenuCheckMark:
    case PseudoElement_MenuIcon:
        return Qt::AlignLeft | Qt::AlignVCenter;

    case PseudoElement_ScrollBarAddLine:
    case PseudoElement_ScrollBarLast:
    case PseudoElement_SpinBoxDownButton:
    case PseudoElement_PushButtonMenuIndicator:
    case PseudoElement_ToolButtonDownArrow:
        return Qt::AlignRight | Qt::AlignBottom;

    case PseudoElement_ScrollBarSubLine:
    case PseudoElement_ScrollBarFirst:
    case PseudoElement_SpinBoxUpButton:
    case PseudoElement_ComboBoxDropDown:
    case PseudoElement_ToolButtonMenu:
        return Qt::AlignRight | Qt::AlignTop;

    case PseudoElement_ScrollBarUpArrow:
    case PseudoElement_ScrollBarDownArrow:
    case PseudoElement_ScrollBarLeftArrow:
    case PseudoElement_ScrollBarRightArrow:
    case PseudoElement_SpinBoxUpArrow:
    case PseudoElement_SpinBoxDownArrow:
    case PseudoElement_ComboBoxArrow:
    case PseudoElement_DownArrow:
    case PseudoElement_ToolButtonMenuArrow:
    case PseudoElement_SliderGroove:
        return Qt::AlignCenter;

    case PseudoElement_GroupBoxTitle:
    case PseudoElement_GroupBoxIndicator: // never used
        return Qt::AlignLeft | Qt::AlignTop;

    case PseudoElement_HeaderViewUpArrow:
    case PseudoElement_HeaderViewDownArrow:
    case PseudoElement_MenuRightArrow:
        return Qt::AlignRight | Qt::AlignVCenter;

    default:
        return 0;
    }
}

QSize QStyleSheetStyle::defaultSize(const QWidget *w, QSize sz, const QRect& rect, int pe) const
{
    QStyle *base = baseStyle();

    switch (pe) {
    case PseudoElement_Indicator:
    case PseudoElement_MenuCheckMark:
        if (sz.width() == -1)
            sz.setWidth(base->pixelMetric(PM_IndicatorWidth, 0, w));
        if (sz.height() == -1)
            sz.setHeight(base->pixelMetric(PM_IndicatorHeight, 0, w));
        break;

    case PseudoElement_ExclusiveIndicator:
    case PseudoElement_GroupBoxIndicator:
        if (sz.width() == -1)
            sz.setWidth(base->pixelMetric(PM_ExclusiveIndicatorWidth, 0, w));
        if (sz.height() == -1)
            sz.setHeight(base->pixelMetric(PM_ExclusiveIndicatorHeight, 0, w));
        break;

    case PseudoElement_PushButtonMenuIndicator: {
        int pm = base->pixelMetric(PM_MenuButtonIndicator, 0, w);
        if (sz.width() == -1)
            sz.setWidth(pm);
        if (sz.height() == -1)
            sz.setHeight(pm);
                                      }
        break;

    case PseudoElement_ComboBoxDropDown:
        if (sz.width() == -1)
            sz.setWidth(16);
        break;

    case PseudoElement_ComboBoxArrow:
    case PseudoElement_DownArrow:
    case PseudoElement_ToolButtonMenuArrow:
    case PseudoElement_ToolButtonDownArrow:
    case PseudoElement_MenuRightArrow:
        if (sz.width() == -1)
            sz.setWidth(13);
        if (sz.height() == -1)
            sz.setHeight(13);
        break;

    case PseudoElement_SpinBoxUpButton:
    case PseudoElement_SpinBoxDownButton:
        if (sz.width() == -1)
            sz.setWidth(16);
        if (sz.height() == -1)
            sz.setHeight(rect.height()/2);
        break;

    case PseudoElement_ToolButtonMenu:
        if (sz.width() == -1)
            sz.setWidth(base->pixelMetric(PM_MenuButtonIndicator, 0, w));
        break;

    case PseudoElement_HeaderViewUpArrow:
    case PseudoElement_HeaderViewDownArrow: {
        int pm = base->pixelMetric(PM_HeaderMargin, 0, w);
        if (sz.width() == -1)
            sz.setWidth(pm);
        if (sz.height() == 1)
            sz.setHeight(pm);
        break;
                                            }

    case PseudoElement_ScrollBarFirst:
    case PseudoElement_ScrollBarLast:
    case PseudoElement_ScrollBarAddLine:
    case PseudoElement_ScrollBarSubLine:
    case PseudoElement_ScrollBarSlider: {
        int pm = pixelMetric(QStyle::PM_ScrollBarExtent, 0, w);
        if (sz.width() == -1)
            sz.setWidth(pm);
        if (sz.height() == -1)
            sz.setHeight(pm);
                                        }

    default:
        break;
    }

    // expand to rectangle
    if (sz.height() == -1)
        sz.setHeight(rect.height());
    if (sz.width() == -1)
        sz.setWidth(rect.width());

    return sz;
}

static PositionMode defaultPositionMode(int pe)
{
    switch (pe) {
    case PseudoElement_ScrollBarFirst:
    case PseudoElement_ScrollBarLast:
    case PseudoElement_ScrollBarAddLine:
    case PseudoElement_ScrollBarSubLine:
    case PseudoElement_ScrollBarAddPage:
    case PseudoElement_ScrollBarSubPage:
    case PseudoElement_ScrollBarSlider:
    case PseudoElement_SliderGroove:
    case PseudoElement_SliderHandle:
    case PseudoElement_TabWidgetPane:
        return PositionMode_Absolute;
    default:
        return PositionMode_Static;
    }
}

QRect QStyleSheetStyle::positionRect(const QWidget *w, const QRenderRule &rule2, int pe,
                                     const QRect &originRect, Qt::LayoutDirection dir) const
{
    const QStyleSheetPositionData *p = rule2.position();
    PositionMode mode = (p && p->mode != PositionMode_Unknown) ? p->mode : defaultPositionMode(pe);
    Qt::Alignment position = (p && p->position != 0) ? p->position : defaultPosition(pe);
    QRect r;

    if (mode != PositionMode_Absolute) {
        QSize sz = defaultSize(w, rule2.size(), originRect, pe);
        sz = sz.expandedTo(rule2.minimumContentsSize());
        r = QStyle::alignedRect(dir, position, sz, originRect);
        if (p) {
            int left = p->left ? p->left : -p->right;
            int top = p->top ? p->top : -p->bottom;
            r.translate(dir == Qt::LeftToRight ? left : -left, top);
        }
    } else {
        r = p ? originRect.adjusted(dir == Qt::LeftToRight ? p->left : p->right, p->top,
                                   dir == Qt::LeftToRight ? -p->right : -p->left, -p->bottom)
              : originRect;
        if (rule2.hasContentsSize()) {
            QSize sz = rule2.size().expandedTo(rule2.minimumContentsSize());
            if (sz.width() == -1) sz.setWidth(r.width());
            if (sz.height() == -1) sz.setHeight(r.height());
            r = QStyle::alignedRect(dir, position, sz, r);
        }
    }
    return r;
}

QRect QStyleSheetStyle::positionRect(const QWidget *w, const QRenderRule& rule1, const QRenderRule& rule2, int pe,
                                     const QRect& rect, Qt::LayoutDirection dir) const
{
    const QStyleSheetPositionData *p = rule2.position();
    Origin origin = (p && p->origin != Origin_Unknown) ? p->origin : defaultOrigin(pe);
    QRect originRect = rule1.originRect(rect, origin);
    return positionRect(w, rule2, pe, originRect, dir);
}

static QWidget *embeddedWidget(QWidget *w)
{
#ifndef QT_NO_COMBOBOX
    if (QComboBox *cmb = qobject_cast<QComboBox *>(w))
        if (cmb->isEditable())
            return cmb->lineEdit();
        else
            return cmb;
#endif

#ifndef QT_NO_SPINBOX
    if (QAbstractSpinBox *sb = qobject_cast<QAbstractSpinBox *>(w))
        return qFindChild<QLineEdit *>(sb);
#endif

#ifndef QT_NO_SCROLLAREA
    if (QAbstractScrollArea *sa = qobject_cast<QAbstractScrollArea *>(w))
        return sa->viewport();
#endif

    return w;
}

static int extendedPseudoClass(QWidget *w)
{
    int pc = 0;
    if (QAbstractSlider *slider = qobject_cast<QAbstractSlider *>(w)) {
        pc |= ((slider->orientation() == Qt::Vertical) ? PseudoClass_Vertical : PseudoClass_Horizontal);
    } else
#ifndef QT_NO_COMBOBOX
    if (QComboBox *combo = qobject_cast<QComboBox *>(w)) {
        if (combo->isEditable())
        pc |= (combo->isEditable() ? PseudoClass_Editable : PseudoClass_ReadOnly);
    } else
#endif
#ifndef QT_NO_LINEEDIT
    if (QLineEdit *edit = qobject_cast<QLineEdit *>(w)) {
        pc |= (edit->isReadOnly() ? PseudoClass_ReadOnly : PseudoClass_Editable);
    } else
#endif
    { } // required for the above ifdef'ery to work
    return pc;
}

// sets up the geometry of the widget. We set a dynamic property when
// we modify the min/max size of the widget. The min/max size is restored
// to their original value when a new stylesheet that does not contain
// the CSS properies is set and when the widget has this dynamic property set.
// This way we don't trample on users who had setup a min/max size in code and
// don't use stylesheets at all.
void QStyleSheetStyle::setGeometry(QWidget *w)
{
    QRenderRule rule = renderRule(w, PseudoElement_None, PseudoClass_Enabled | extendedPseudoClass(w));
    const QStyleSheetGeometryData *geo = rule.geometry();
    if (w->property("_q_stylesheet_minw").toBool()
        && ((!rule.hasGeometry() || geo->minWidth == -1))) {
            w->setMinimumWidth(0);
            w->setProperty("_q_stylesheet_minw", QVariant());
    }
    if (w->property("_q_stylesheet_minh").toBool()
        && ((!rule.hasGeometry() || geo->minHeight == -1))) {
            w->setMinimumHeight(0);
            w->setProperty("_q_stylesheet_minh", QVariant());
    }
    if (w->property("_q_stylesheet_maxw").toBool()
        && ((!rule.hasGeometry() || geo->maxWidth == -1))) {
            w->setMaximumWidth(QWIDGETSIZE_MAX);
            w->setProperty("_q_stylesheet_maxw", QVariant());
    }
   if (w->property("_q_stylesheet_maxh").toBool()
        && ((!rule.hasGeometry() || geo->maxHeight == -1))) {
            w->setMaximumHeight(QWIDGETSIZE_MAX);
            w->setProperty("_q_stylesheet_maxh", QVariant());
    }


    if (rule.hasGeometry()) {
        if (geo->minWidth != -1) {
            w->setProperty("_q_stylesheet_minw", true);
            w->setMinimumWidth(rule.boxSize(QSize(qMax(geo->width, geo->minWidth), 0)).width());
        }
        if (geo->minHeight != -1) {
            w->setProperty("_q_stylesheet_minh", true);
            w->setMinimumHeight(rule.boxSize(QSize(0, qMax(geo->height, geo->minHeight))).height());
        }
        if (geo->maxWidth != -1) {
            w->setProperty("_q_stylesheet_maxw", true);
            w->setMaximumWidth(rule.boxSize(QSize(qMin(geo->width == -1 ? QWIDGETSIZE_MAX : geo->width,
                                                       geo->maxWidth == -1 ? QWIDGETSIZE_MAX : geo->maxWidth), 0)).width());
        }
        if (geo->maxHeight != -1) {
            w->setProperty("_q_stylesheet_maxh", true);
            w->setMaximumHeight(rule.boxSize(QSize(0, qMin(geo->height == -1 ? QWIDGETSIZE_MAX : geo->height,
                                                       geo->maxHeight == -1 ? QWIDGETSIZE_MAX : geo->maxHeight))).height());
        }
    }
}

void QStyleSheetStyle::setProperties(QWidget *w)
{
    QHash<QString, QVariant> propertyHash;
    QVector<Declaration> decls = declarations(styleRules(w), QString());

    // run through the declarations in order
    for (int i = 0; i < decls.count(); i++) {
        Declaration decl = decls.at(i);
        QString property = decl.property;
        if (!property.startsWith(QLatin1String("qproperty-"), Qt::CaseInsensitive))
            continue;
        property.remove(0, 10); // strip "qproperty-"
        const QVariant value = w->property(property.toLatin1());
        const QMetaObject *metaObject = w->metaObject();
        int index = metaObject->indexOfProperty(property.toLatin1());
        if (index == -1) {
            qWarning() << w << " does not have a property named " << property;
            continue;
        }
        QMetaProperty metaProperty = metaObject->property(index);
        if (!metaProperty.isWritable() || !metaProperty.isDesignable()) {
            qWarning() << w << " cannot design property named " << property;
            continue;
        }
        QVariant v;
        switch (value.type()) {
        case QVariant::Icon: v = decl.iconValue(); break;
        case QVariant::Image: v = QImage(decl.uriValue()); break;
        case QVariant::Pixmap: v = QPixmap(decl.uriValue()); break;
        case QVariant::Rect: v = decl.rectValue(); break;
        case QVariant::Size: v = decl.sizeValue(); break;
        case QVariant::Color: v = decl.colorValue(); break;
        case QVariant::Brush: v = decl.brushValue(); break;
#ifndef QT_NO_SHORTCUT
        case QVariant::KeySequence: v = QKeySequence(decl.values.first().variant.toString());
#endif
        default: v = decl.values.first().variant; break;
        }
        propertyHash[property] = v;
    }
    // apply the values
    const QList<QString> properties = propertyHash.keys();
    for (int i = 0; i < properties.count(); i++) {
        const QString property = properties.at(i);
        w->setProperty(property.toLatin1(), propertyHash[property]);
    }
}

void QStyleSheetStyle::setPalette(QWidget *w)
{
    struct RuleRoleMap {
        int state;
        QPalette::ColorGroup group;
    } map[3] = {
        { PseudoClass_Enabled, QPalette::Active },
        { PseudoClass_Disabled, QPalette::Disabled },
        { PseudoClass_Enabled, QPalette::Inactive }
    };

    QPalette p = w->palette();
    QWidget *ew = embeddedWidget(w);

    for (int i = 0; i < 3; i++) {
        QRenderRule rule = renderRule(w, PseudoElement_None, map[i].state | extendedPseudoClass(w));
        if (i == 0) {
            w->setFont(rule.font);

            if (ew->autoFillBackground() &&
                (rule.hasBackground()
                 || (rule.hasBorder() && rule.border()->hasBorderImage()
                     && rule.border()->borderImage()->middleRect.isValid()))) {
                ew->setAutoFillBackground(false);
                autoFillDisabledWidgets->insert(w);
            }
        }

        rule.configurePalette(&p, map[i].group, ew, ew != w);
    }

    customPaletteWidgets->insert(w, w->palette().resolve());
    w->setPalette(p);
}

void QStyleSheetStyle::unsetPalette(QWidget *w)
{
    if (customPaletteWidgets->contains(w)) {
        QPalette p = w->palette();
        p.resolve(customPaletteWidgets->value(w));
        w->setPalette(p);
        customPaletteWidgets->remove(w);
    }
    w->setFont(QFont());
    if (autoFillDisabledWidgets->contains(w)) {
        embeddedWidget(w)->setAutoFillBackground(true);
        autoFillDisabledWidgets->remove(w);
    }
}

static void updateWidgets(const QList<const QWidget *>& widgets)
{
    for (int i = 0; i < widgets.size(); ++i) {
        const QWidget *widget = widgets.at(i);
        styleRulesCache->remove(widget);
        renderRulesCache->remove(widget);
    }
    for (int i = 0; i < widgets.size(); ++i) {
        QWidget *widget = const_cast<QWidget *>(widgets.at(i));
        widget->style()->polish(widget);
        QEvent event(QEvent::StyleChange);
        qApp->sendEvent(widget, &event);
        widget->update();
        widget->updateGeometry();
    }
}

/////////////////////////////////////////////////////////////////////////////////////////
// The stylesheet style
int QStyleSheetStyle::numinstances = 0;

QStyleSheetStyle::QStyleSheetStyle(QStyle *base)
: QWindowsStyle(*new QStyleSheetStylePrivate), base(base), refcount(1)
{
    ++numinstances;
    if (numinstances == 1) {
        styleRulesCache = new QHash<const QWidget *, QVector<StyleRule> >;
        renderRulesCache = new QHash<const QWidget *, QRenderRules>;
        customPaletteWidgets = new QHash<const QWidget *, int>;
        styleSheetCache = new QHash<const void *, StyleSheet>;
        autoFillDisabledWidgets = new QSet<const QWidget *>;
    }
}

QStyleSheetStyle::~QStyleSheetStyle()
{
    --numinstances;
    if (numinstances == 0) {
        delete styleRulesCache;
        styleRulesCache = 0;
        delete renderRulesCache;
        renderRulesCache = 0;
        delete customPaletteWidgets;
        customPaletteWidgets = 0;
        delete styleSheetCache;
        styleSheetCache = 0;
        delete autoFillDisabledWidgets;
        autoFillDisabledWidgets = 0;
    }
}
QStyle *QStyleSheetStyle::baseStyle() const
{
    if (base)
        return base;
    if (QStyleSheetStyle *me = qobject_cast<QStyleSheetStyle *>(qApp->style()))
        return me->base;
    return qApp->style();
}

void QStyleSheetStyle::widgetDestroyed(QObject *o)
{
    styleRulesCache->remove((const QWidget *)o);
    renderRulesCache->remove((const QWidget *)o);
    customPaletteWidgets->remove((const QWidget *)o);
    styleSheetCache->remove((const QWidget *)o);
    autoFillDisabledWidgets->remove((const QWidget *)o);
}

void QStyleSheetStyle::polish(QWidget *w)
{
    baseStyle()->polish(w);

    w->setProperty("_q_stylesheet_polished", true);
    w->setAttribute(Qt::WA_StyleSheet, !unstylable(w));

    // Legacy code alert: following code is redundant since we don't cache unpolished widgets
    if (styleSheetCache->contains(w)) {
        // the widget accessed its style pointer before polish (or repolish)
        // and the stylesheet could have changed behind our back
        styleSheetCache->remove(w);
        styleRulesCache->remove(w);
        renderRulesCache->remove(w);
    }

    setGeometry(w);
    setProperties(w);
    unsetPalette(w);
    setPalette(w);
    w->setAttribute(Qt::WA_Hover);

#ifndef QT_NO_SCROLLAREA
    if (QAbstractScrollArea *sa = qobject_cast<QAbstractScrollArea *>(w)) {
        QRenderRule rule = renderRule(sa, PseudoElement_None, PseudoClass_Enabled);
        if ((rule.hasBorder() && rule.border()->hasBorderImage())
            || (rule.hasBackground() && !rule.background()->pixmap.isNull())) {
            QObject::connect(sa->horizontalScrollBar(), SIGNAL(valueChanged(int)),
                             sa, SLOT(update()));
            QObject::connect(sa->verticalScrollBar(), SIGNAL(valueChanged(int)),
                             sa, SLOT(update()));
        }
    }
#endif

#ifndef QT_NO_FRAME
    if (QFrame *frame = qobject_cast<QFrame *>(w)) {
        QRenderRule rule = renderRule(frame, PseudoElement_None, PseudoClass_Enabled);
        if (rule.hasBox() || !rule.hasNativeBorder()) {
            if (!frame->property("_q_stylesheet_framestyle").isValid())
                frame->setProperty("_q_stylesheet_framestyle", frame->frameStyle());
            frame->setFrameStyle(QFrame::StyledPanel);
        } else if (frame->property("_q_stylesheet_framestyle").isValid()) {
            frame->setFrameStyle(frame->property("_q_stylesheet_framestyle").toInt());
            frame->setProperty("_q_stylesheet_framestyle", QVariant());
        }
    }
#endif

#ifndef QT_NO_PROGRESSBAR
    if (QProgressBar *pb = qobject_cast<QProgressBar *>(w)) {
        QRenderRule rule = renderRule(w, PseudoElement_ProgressBarChunk);
        QWindowsStyle::polish(pb);
    }
#endif

    const QMetaObject *me = w->metaObject();
    const QMetaObject *super = w->metaObject()->superClass();
    bool on = QString::fromLocal8Bit(me->className()) == QLatin1String("QWidget")
#ifndef QT_NO_MENUBAR
              || qobject_cast<QMenuBar *>(w)
#endif
#ifndef QT_NO_STATUSBAR
              || qobject_cast<QStatusBar *>(w)
#endif
#ifndef QT_NO_MENU
              || qobject_cast<QMenu *>(w)
#endif
#ifndef QT_NO_ITEMVIEWS
              || qobject_cast<QHeaderView *>(w)
#endif
#ifndef QT_NO_TABBAR
              || qobject_cast<QTabBar *>(w)
#endif
#ifndef QT_NO_FRAME
              || qobject_cast<QFrame *>(w)
#endif
#ifndef QT_NO_MAINWINDOW
              || qobject_cast<QMainWindow *>(w)
#endif
              || QString::fromLocal8Bit(me->className()) == QLatin1String("QDialog")
              || QString::fromLocal8Bit(super->className()) == QLatin1String("QDialog");

    w->setAttribute(Qt::WA_StyledBackground, on);
    w->setAttribute(Qt::WA_OpaquePaintEvent, false);
}

void QStyleSheetStyle::polish(QApplication *app)
{
    baseStyle()->polish(app);
}

void QStyleSheetStyle::polish(QPalette &pal)
{
    baseStyle()->polish(pal);
}

void QStyleSheetStyle::repolish(QWidget *w)
{
    QList<const QWidget *> children = qFindChildren<const QWidget *>(w, QString());
    children.append(w);
    styleSheetCache->remove(w);
    updateWidgets(children);
}

void QStyleSheetStyle::repolish(QApplication *)
{
    styleSheetCache->remove(qApp);
    updateWidgets(styleRulesCache->keys());
}

void QStyleSheetStyle::unpolish(QWidget *w)
{
    styleRulesCache->remove(w);
    renderRulesCache->remove(w);
    styleSheetCache->remove(w);
    baseStyle()->unpolish(w);
    unsetPalette(w);
    w->setProperty("_q_stylesheet_minw", QVariant());
    w->setProperty("_q_stylesheet_minh", QVariant());
    w->setProperty("_q_stylesheet_maxw", QVariant());
    w->setProperty("_q_stylesheet_maxh", QVariant());
    if (w->property("_q_stylesheet_framestyle").isValid()) {
        (static_cast<QFrame *>(w))->setFrameStyle(w->property("_q_stylesheet_framestyle").toInt());
        w->setProperty("_q_stylesheet_framestyle", QVariant());
    }
    w->setAttribute(Qt::WA_StyleSheet, false);
    QObject::disconnect(w, SIGNAL(destroyed(QObject*)),
                      this, SLOT(widgetDestroyed(QObject*)));
#ifndef QT_NO_SCROLLAREA
    if (QAbstractScrollArea *sa = qobject_cast<QAbstractScrollArea *>(w)) {
        QObject::disconnect(sa->horizontalScrollBar(), SIGNAL(valueChanged(int)),
                            sa, SLOT(update()));
        QObject::disconnect(sa->verticalScrollBar(), SIGNAL(valueChanged(int)),
                            sa, SLOT(update()));
    }
#endif
#ifndef QT_NO_PROGRESSBAR
    if (QProgressBar *pb = qobject_cast<QProgressBar *>(w))
        QWindowsStyle::unpolish(pb);
#endif
}

void QStyleSheetStyle::unpolish(QApplication *app)
{
    styleRulesCache->clear();
    renderRulesCache->clear();
    styleSheetCache->remove(qApp);
    baseStyle()->unpolish(app);
}

#ifndef QT_NO_TABBAR
inline static bool verticalTabs(QTabBar::Shape shape)
{
    return shape == QTabBar::RoundedWest
           || shape == QTabBar::RoundedEast
           || shape == QTabBar::TriangularWest
           || shape == QTabBar::TriangularEast;
}
#endif // QT_NO_TABBAR

void QStyleSheetStyle::drawComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, QPainter *p,
                                          const QWidget *w) const
{
    QRenderRule rule = renderRule(w, opt);

    switch (cc) {
    case CC_ComboBox:
        if (const QStyleOptionComboBox *cmb = qstyleoption_cast<const QStyleOptionComboBox *>(opt)) {
            QStyleOptionComboBox cmbOpt(*cmb);
            cmbOpt.rect = rule.borderRect(opt->rect);
            if (rule.nativeBorder()) {
                rule.drawBackgroundImage(p, cmbOpt.rect);
                bool customDropDown = (opt->subControls & QStyle::SC_ComboBoxArrow)
                                      && hasStyleRule(w, PseudoElement_ComboBoxDropDown);
                if (customDropDown)
                    cmbOpt.subControls &= ~QStyle::SC_ComboBoxArrow;
                if (rule.baseStyleCanDraw()) {
                    baseStyle()->drawComplexControl(cc, &cmbOpt, p, w);
                } else {
                    QWindowsStyle::drawComplexControl(cc, &cmbOpt, p, w);
                }
                if (!customDropDown)
                    return;
            } else {
                rule.drawRule(p, opt->rect);
            }

            if (opt->subControls & QStyle::SC_ComboBoxArrow) {
                QRenderRule subRule = renderRule(w, opt, PseudoElement_ComboBoxDropDown);
                if (subRule.hasDrawable()) {
                    QRect r = subControlRect(CC_ComboBox, opt, SC_ComboBoxArrow, w);
                    subRule.drawRule(p, r);
                    QRenderRule subRule2 = renderRule(w, opt, PseudoElement_ComboBoxArrow);
                    r = positionRect(w, subRule, subRule2, PseudoElement_ComboBoxArrow, r, opt->direction);
                    subRule2.drawRule(p, r);
                } else {
                    cmbOpt.subControls = QStyle::SC_ComboBoxArrow;
                    QWindowsStyle::drawComplexControl(cc, &cmbOpt, p, w);
                }
            }

            return;
        }
        break;

#ifndef QT_NO_SPINBOX
    case CC_SpinBox:
        if (const QStyleOptionSpinBox *spin = qstyleoption_cast<const QStyleOptionSpinBox *>(opt)) {
            QStyleOptionSpinBox spinOpt(*spin);
            spinOpt.rect = rule.borderRect(opt->rect);
            bool customUp = true, customDown = true;
            if (rule.hasNativeBorder()) {
                rule.drawBackgroundImage(p, spinOpt.rect);
                customUp = (opt->subControls & QStyle::SC_SpinBoxUp)
                           && hasStyleRule(w, PseudoElement_SpinBoxUpButton);
                if (customUp)
                    spinOpt.subControls &= ~QStyle::SC_SpinBoxUp;
                customDown = (opt->subControls & QStyle::SC_SpinBoxDown)
                             && hasStyleRule(w, PseudoElement_SpinBoxDownButton);
                if (customDown)
                    spinOpt.subControls &= ~QStyle::SC_SpinBoxDown;
                if (rule.baseStyleCanDraw()) {
                    baseStyle()->drawComplexControl(cc, &spinOpt, p, w);
                } else {
                    QWindowsStyle::drawComplexControl(cc, &spinOpt, p, w);
                }
                if (!customUp && !customDown)
                    return;
            } else {
                rule.drawRule(p, opt->rect);
            }

            if ((opt->subControls & QStyle::SC_SpinBoxUp) && customUp) {
                QRenderRule subRule = renderRule(w, opt, PseudoElement_SpinBoxUpButton);
                if (subRule.hasDrawable()) {
                    QRect r = subControlRect(CC_SpinBox, opt, SC_SpinBoxUp, w);
                    subRule.drawRule(p, r);
                    QRenderRule subRule2 = renderRule(w, opt, PseudoElement_SpinBoxUpArrow);
                    r = positionRect(w, subRule, subRule2, PseudoElement_SpinBoxUpArrow, r, opt->direction);
                    subRule2.drawRule(p, r);
                } else {
                    spinOpt.subControls = QStyle::SC_SpinBoxUp;
                    QWindowsStyle::drawComplexControl(cc, &spinOpt, p, w);
                }
            }

            if ((opt->subControls & QStyle::SC_SpinBoxDown) && customDown) {
                QRenderRule subRule = renderRule(w, opt, PseudoElement_SpinBoxDownButton);
                if (subRule.hasDrawable()) {
                    QRect r = subControlRect(CC_SpinBox, opt, SC_SpinBoxDown, w);
                    subRule.drawRule(p, r);
                    QRenderRule subRule2 = renderRule(w, opt, PseudoElement_SpinBoxDownArrow);
                    r = positionRect(w, subRule, subRule2, PseudoElement_SpinBoxDownArrow, r, opt->direction);
                    subRule2.drawRule(p, r);
                } else {
                    spinOpt.subControls = QStyle::SC_SpinBoxDown;
                    QWindowsStyle::drawComplexControl(cc, &spinOpt, p, w);
                }
            }
            return;
        }
        break;
#endif // QT_NO_SPINBOX

    case CC_GroupBox:
        if (const QStyleOptionGroupBox *gb = qstyleoption_cast<const QStyleOptionGroupBox *>(opt)) {
            rule.drawBackground(p, opt->rect);

            QRect labelRect, checkBoxRect, titleRect, frameRect;
            bool hasTitle = (gb->subControls & QStyle::SC_GroupBoxCheckBox) || !gb->text.isEmpty();
            QRenderRule titleRule = renderRule(w, opt, PseudoElement_GroupBoxTitle);

            bool clipSet = false;

            if (hasTitle) {
                labelRect = subControlRect(CC_GroupBox, opt, SC_GroupBoxLabel, w);
                if (gb->subControls & QStyle::SC_GroupBoxCheckBox) {
                    checkBoxRect = subControlRect(CC_GroupBox, opt, SC_GroupBoxCheckBox, w);
                    titleRect = titleRule.boxRect(checkBoxRect.united(labelRect));
                } else {
                    titleRect = titleRule.boxRect(labelRect);
                }
                if (!titleRule.hasBackground() || !titleRule.background()->isTransparent()) {
                    clipSet = true;
                    p->save();
                    p->setClipRegion(QRegion(opt->rect) - titleRect);
                }
            }

            frameRect = subControlRect(CC_GroupBox, opt, SC_GroupBoxFrame, w);
            QStyleOptionFrameV2 frame;
            frame.QStyleOption::operator=(*gb);
            frame.features = gb->features;
            frame.lineWidth = gb->lineWidth;
            frame.midLineWidth = gb->midLineWidth;
            frame.rect = frameRect;
            drawPrimitive(PE_FrameGroupBox, &frame, p, w);

            if (clipSet)
                p->restore();

            // draw background and frame of the title
            if (hasTitle)
                titleRule.drawRule(p, titleRect);

            // draw the indicator
            if (gb->subControls & QStyle::SC_GroupBoxCheckBox) {
                QStyleOptionButton box;
                box.QStyleOption::operator=(*gb);
                box.rect = checkBoxRect;
                drawPrimitive(PE_IndicatorCheckBox, &box, p, w);
            }

            // draw the text
            if (!gb->text.isEmpty()) {
                int alignment = int(Qt::AlignCenter | Qt::TextShowMnemonic);
                if (!styleHint(QStyle::SH_UnderlineShortcut, opt, w)) {
                    alignment |= Qt::TextHideMnemonic;
                }

                QPalette pal = gb->palette;
                if (gb->textColor.isValid())
                    pal.setColor(QPalette::WindowText, gb->textColor);
                titleRule.configurePalette(&pal, QPalette::WindowText, QPalette::Window);
                drawItemText(p, labelRect,  alignment, pal, gb->state & State_Enabled,
                             gb->text, QPalette::WindowText);
            }

                        return;
        }
        break;

    case CC_ToolButton:
        if (const QStyleOptionToolButton *tool = qstyleoption_cast<const QStyleOptionToolButton *>(opt)) {
            QStyleOptionToolButton toolOpt(*tool);
            toolOpt.rect = rule.borderRect(opt->rect);
            bool customArrow = (tool->features & (QStyleOptionToolButton::HasMenu | QStyleOptionToolButton::MenuButtonPopup));
            bool customDropDown = tool->features & QStyleOptionToolButton::MenuButtonPopup;
            if (rule.hasNativeBorder()) {
                rule.drawBackground(p, toolOpt.rect);
                customArrow = customArrow && hasStyleRule(w, PseudoElement_ToolButtonDownArrow);
                if (customArrow)
                    toolOpt.features &= ~QStyleOptionToolButton::HasMenu;
                customDropDown = customDropDown && hasStyleRule(w, PseudoElement_ToolButtonMenu);
                if (customDropDown)
                    toolOpt.subControls &= ~QStyle::SC_ToolButtonMenu;

                if (rule.baseStyleCanDraw() && !(tool->features & QStyleOptionToolButton::Arrow)) {
                    baseStyle()->drawComplexControl(cc, &toolOpt, p, w);
                } else {
                    QWindowsStyle::drawComplexControl(cc, &toolOpt, p, w);
                }

                if (!customArrow && !customDropDown)
                    return;
            } else {
                rule.drawRule(p, opt->rect);
                toolOpt.rect = rule.contentsRect(opt->rect);
                if (rule.hasFont)
                    toolOpt.font = rule.font;
                drawControl(CE_ToolButtonLabel, &toolOpt, p, w);
            }


            QRenderRule subRule = renderRule(w, opt, PseudoElement_ToolButtonMenu);
            QRect r = subControlRect(CC_ToolButton, opt, QStyle::SC_ToolButtonMenu, w);
            if (customDropDown) {
                if (opt->subControls & QStyle::SC_ToolButtonMenu) {
                    if (subRule.hasDrawable()) {
                        subRule.drawRule(p, r);
                    } else {
                        toolOpt.rect = r;
                        baseStyle()->drawPrimitive(PE_IndicatorButtonDropDown, &toolOpt, p, w);
                    }
                }
            }

            if (customArrow) {
                QRenderRule subRule2 = customDropDown ? renderRule(w, opt, PseudoElement_ToolButtonMenuArrow)
                                                      : renderRule(w, opt, PseudoElement_ToolButtonDownArrow);
                QRect r2 = customDropDown
                          ? positionRect(w, subRule, subRule2, PseudoElement_ToolButtonMenuArrow, r, opt->direction)
                          : positionRect(w, rule, subRule2, PseudoElement_ToolButtonDownArrow, opt->rect, opt->direction);
                if (subRule2.hasDrawable()) {
                    subRule2.drawRule(p, r2);
                } else {
                    toolOpt.rect = r2;
                    baseStyle()->drawPrimitive(QStyle::PE_IndicatorArrowDown, &toolOpt, p, w);
                }
            }

            return;
        }
        break;

#ifndef QT_NO_SCROLLBAR
    case CC_ScrollBar:
        if (const QStyleOptionSlider *sb = qstyleoption_cast<const QStyleOptionSlider *>(opt)) {
            QStyleOptionSlider sbOpt(*sb);
            if (!rule.hasDrawable()) {
                sbOpt.rect = rule.borderRect(opt->rect);
                rule.drawBackgroundImage(p, opt->rect);
                baseStyle()->drawComplexControl(cc, &sbOpt, p, w);
            } else {
                rule.drawRule(p, opt->rect);
                QWindowsStyle::drawComplexControl(cc, opt, p, w);
            }
            return;
        }
        break;
#endif // QT_NO_SCROLLBAR

#ifndef QT_NO_SLIDER
    case CC_Slider:
        if (const QStyleOptionSlider *slider = qstyleoption_cast<const QStyleOptionSlider *>(opt)) {
            rule.drawRule(p, opt->rect);

            QRenderRule subRule = renderRule(w, opt, PseudoElement_SliderGroove);
            if (!subRule.hasDrawable()) {
                baseStyle()->drawComplexControl(cc, slider, p, w);
                return;
            }

            QRect gr = subControlRect(cc, opt, SC_SliderGroove, w);
            if (slider->subControls & SC_SliderGroove) {
                subRule.drawRule(p, gr);
            }

            if (slider->subControls & SC_SliderHandle) {
                QRenderRule subRule = renderRule(w, opt, PseudoElement_SliderHandle);
                QRect hr = subControlRect(cc, opt, SC_SliderHandle, w);

                QRenderRule subRule1 = renderRule(w, opt, PseudoElement_SliderSubPage);
                if (subRule1.hasDrawable()) {
                    QRect r(gr.topLeft(),
                            slider->orientation == Qt::Horizontal
                                ? QPoint(hr.x()+hr.width()/2, gr.y()+gr.height())
                                : QPoint(gr.x()+gr.width(), hr.y()+hr.height()/2));
                    subRule1.drawRule(p, r);
                }

                QRenderRule subRule2 = renderRule(w, opt, PseudoElement_SliderAddPage);
                if (subRule2.hasDrawable()) {
                    QRect r(slider->orientation == Qt::Horizontal
                                ? QPoint(hr.x()+hr.width()/2+1, gr.y())
                                : QPoint(gr.x(), hr.y()+hr.height()/2+1),
                            gr.bottomRight());
                    subRule2.drawRule(p, r);
                }

                subRule.drawRule(p, subRule.boxRect(hr, Margin));
            }

            if (slider->subControls & SC_SliderTickmarks) {
                // TODO...
            }

            return;
        }
        break;
#endif // QT_NO_SLIDER

    default:
        break;
    }

    baseStyle()->drawComplexControl(cc, opt, p, w);
}

void QStyleSheetStyle::drawControl(ControlElement ce, const QStyleOption *opt, QPainter *p,
                          const QWidget *w) const
{
    QRenderRule rule = renderRule(w, opt);
    int pe1 = PseudoElement_None, pe2 = PseudoElement_None;
    bool fallback = false;

    switch (ce) {
    case CE_ToolButtonLabel:
        if (const QStyleOptionToolButton *btn = qstyleoption_cast<const QStyleOptionToolButton *>(opt)) {
            if (rule.hasBox() || btn->features & QStyleOptionToolButton::Arrow) {
                QCommonStyle::drawControl(ce, opt, p, w);
            } else {
                QStyleOptionToolButton butOpt(*btn);
                rule.configurePalette(&butOpt.palette, QPalette::ButtonText, QPalette::Button);
                baseStyle()->drawControl(ce, &butOpt, p, w);
            }
            return;
        }
        break;

    case CE_PushButton:
        ParentStyle::drawControl(ce, opt, p, w);
        return;

    case CE_PushButtonBevel:
        if (const QStyleOptionButton *btn = qstyleoption_cast<const QStyleOptionButton *>(opt)) {
            QStyleOptionButton btnOpt(*btn);
            btnOpt.rect = rule.borderRect(opt->rect);
            if (rule.nativeBorder()) {
                rule.drawBackgroundImage(p, btnOpt.rect);
                rule.configurePalette(&btnOpt.palette, QPalette::ButtonText, QPalette::Button);
                bool customMenu = (btn->features & QStyleOptionButton::HasMenu
                                   && hasStyleRule(w, PseudoElement_PushButtonMenuIndicator));
                if (customMenu)
                    btnOpt.features &= ~QStyleOptionButton::HasMenu;
                if (rule.baseStyleCanDraw()) {
                    baseStyle()->drawControl(ce, &btnOpt, p, w);
                } else {
                    QWindowsStyle::drawControl(ce, &btnOpt, p, w);
                }
                if (!customMenu)
                    return;
            } else {
                rule.drawRule(p, opt->rect);
            }

            if (btn->features & QStyleOptionButton::HasMenu) {
                QRenderRule subRule = renderRule(w, opt, PseudoElement_PushButtonMenuIndicator);
                QRect ir = positionRect(w, rule, subRule, PseudoElement_PushButtonMenuIndicator, opt->rect, opt->direction);
                if (subRule.hasDrawable()) {
                    subRule.drawRule(p, ir);
                } else {
                    btnOpt.rect = ir;
                    baseStyle()->drawPrimitive(PE_IndicatorArrowDown, &btnOpt, p, w);
                }
            }
        }
        return;

    case CE_PushButtonLabel:
        if (const QStyleOptionButton *button = qstyleoption_cast<const QStyleOptionButton *>(opt)) {
            QStyleOptionButton butOpt(*button);
            rule.configurePalette(&butOpt.palette, QPalette::ButtonText, QPalette::Button);
            if (rule.hasPosition() && rule.position()->textAlignment != 0) {
                Qt::Alignment textAlignment = rule.position()->textAlignment;
                QRect textRect = button->rect;
                uint tf = Qt::AlignVCenter | Qt::TextShowMnemonic;
                if (!styleHint(SH_UnderlineShortcut, button, w))
                    tf |= Qt::TextHideMnemonic;
                if (!button->icon.isNull()) {
                    //Group both icon and text
                    QRect iconRect;
                    QIcon::Mode mode = button->state & State_Enabled ? QIcon::Normal : QIcon::Disabled;
                    if (mode == QIcon::Normal && button->state & State_HasFocus)
                        mode = QIcon::Active;
                    QIcon::State state = QIcon::Off;
                    if (button->state & State_On)
                        state = QIcon::On;

                    QPixmap pixmap = button->icon.pixmap(button->iconSize, mode, state);
                    int labelWidth = pixmap.width();
                    int labelHeight = pixmap.height();
                    int iconSpacing = 4;//### 4 is currently hardcoded in QPushButton::sizeHint()
                    int textWidth = button->fontMetrics.boundingRect(opt->rect, tf, button->text).width();
                    if (!button->text.isEmpty())
                        labelWidth += (textWidth + iconSpacing);

                    //Determine label alignment:
                    if (textAlignment & Qt::AlignLeft) { /*left*/
                        iconRect = QRect(textRect.x(), textRect.y() + (textRect.height() - labelHeight) / 2,
                                         pixmap.width(), pixmap.height());
                    } else if (textAlignment & Qt::AlignHCenter) { /* center */
                        iconRect = QRect(textRect.x() + (textRect.width() - labelWidth) / 2,
                                         textRect.y() + (textRect.height() - labelHeight) / 2,
                                         pixmap.width(), pixmap.height());
                    } else { /*right*/
                        iconRect = QRect(textRect.x() + textRect.width() - labelWidth,
                                         textRect.y() + (textRect.height() - labelHeight) / 2,
                                         pixmap.width(), pixmap.height());
                    }

                    iconRect = visualRect(button->direction, textRect, iconRect);

                    tf |= Qt::AlignLeft; //left align, we adjust the text-rect instead

                    if (button->direction == Qt::RightToLeft)
                        textRect.setRight(iconRect.left() - iconSpacing);
                    else
                        textRect.setLeft(iconRect.left() + iconRect.width() + iconSpacing);

                    if (button->state & (State_On | State_Sunken))
                        iconRect.translate(pixelMetric(PM_ButtonShiftHorizontal, opt, w),
                                           pixelMetric(PM_ButtonShiftVertical, opt, w));
                    p->drawPixmap(iconRect, pixmap);
                } else {
                    tf |= textAlignment;
                }
                if (button->state & (State_On | State_Sunken))
                    textRect.translate(pixelMetric(PM_ButtonShiftHorizontal, opt, w),
                                 pixelMetric(PM_ButtonShiftVertical, opt, w));

                if (button->features & QStyleOptionButton::HasMenu) {
                    int indicatorSize = pixelMetric(PM_MenuButtonIndicator, button, w);
                    if (button->direction == Qt::LeftToRight)
                        textRect = textRect.adjusted(0, 0, -indicatorSize, 0);
                    else
                        textRect = textRect.adjusted(indicatorSize, 0, 0, 0);
                }
                drawItemText(p, textRect, tf, butOpt.palette, (button->state & State_Enabled),
                             button->text, QPalette::ButtonText);
            } else {
                ParentStyle::drawControl(ce, &butOpt, p, w);
            }
        }
        return;

    case CE_RadioButton:
    case CE_CheckBox:
        rule.drawRule(p, opt->rect);
        ParentStyle::drawControl(ce, opt, p, w);
        return;

    case CE_RadioButtonLabel:
    case CE_CheckBoxLabel:
        if (const QStyleOptionButton *btn = qstyleoption_cast<const QStyleOptionButton *>(opt)) {
            QStyleOptionButton butOpt(*btn);
            rule.configurePalette(&butOpt.palette, QPalette::ButtonText, QPalette::Button);
            ParentStyle::drawControl(ce, &butOpt, p, w);
        }
        return;

    case CE_Splitter:
        pe1 = PseudoElement_SplitterHandle;
        break;

    case CE_ToolBar:
        if (rule.hasBackground()) {
            rule.drawBackground(p, opt->rect);
        }
        if (rule.hasBorder()) {
            rule.drawBorder(p, rule.borderRect(opt->rect));
        } else {
#ifndef QT_NO_TOOLBAR
            if (const QStyleOptionToolBar *tb = qstyleoption_cast<const QStyleOptionToolBar *>(opt)) {
                QStyleOptionToolBar newTb(*tb);
                newTb.rect = rule.borderRect(opt->rect);
                baseStyle()->drawControl(ce, &newTb, p, w);
            }
#endif // QT_NO_TOOLBAR
        }
        return;

    case CE_MenuEmptyArea:
    case CE_MenuBarEmptyArea:
        if (rule.hasDrawable()) {
            return;
        }
        break;

    case CE_MenuTearoff:
    case CE_MenuScroller:
        if (const QStyleOptionMenuItem *m = qstyleoption_cast<const QStyleOptionMenuItem *>(opt)) {
            QStyleOptionMenuItem mi(*m);
            int pe = ce == CE_MenuTearoff ? PseudoElement_MenuTearoff : PseudoElement_MenuScroller;
            QRenderRule subRule = renderRule(w, opt, pe);
            mi.rect = subRule.contentsRect(opt->rect);
            rule.configurePalette(&mi.palette, QPalette::ButtonText, QPalette::Button);
            subRule.configurePalette(&mi.palette, QPalette::ButtonText, QPalette::Button);

            if (subRule.hasDrawable()) {
                subRule.drawRule(p, opt->rect);
            } else {
                baseStyle()->drawControl(ce, &mi, p, w);
            }
        }
        return;

    case CE_MenuItem:
        if (const QStyleOptionMenuItem *m = qstyleoption_cast<const QStyleOptionMenuItem *>(opt)) {
            QStyleOptionMenuItem mi(*m);
            rule.configurePalette(&mi.palette, QPalette::ButtonText, QPalette::Button);

            int pseudo = (mi.menuItemType == QStyleOptionMenuItem::Separator) ? PseudoElement_MenuSeparator : PseudoElement_Item;
            QRenderRule subRule = renderRule(w, opt, pseudo);
            mi.rect = subRule.contentsRect(opt->rect);
            rule.configurePalette(&mi.palette, QPalette::ButtonText, QPalette::Button);
            rule.configurePalette(&mi.palette, QPalette::HighlightedText, QPalette::Highlight);
            subRule.configurePalette(&mi.palette, QPalette::ButtonText, QPalette::Button);
            subRule.configurePalette(&mi.palette, QPalette::HighlightedText, QPalette::Highlight);
            QFont oldFont = p->font();
            if (subRule.hasFont)
                p->setFont(subRule.font.resolve(p->font()));

            if ((pseudo == PseudoElement_MenuSeparator) && subRule.hasDrawable()) {
                subRule.drawRule(p, opt->rect);
            } else if ((pseudo == PseudoElement_Item) && (subRule.hasBox() || subRule.hasBorder() ||
                        subRule.hasDrawable())) {
                subRule.drawRule(p, opt->rect);
                if (subRule.hasBackground()) {
                    mi.palette.setBrush(QPalette::Highlight, Qt::NoBrush);
                    mi.palette.setBrush(QPalette::Button, Qt::NoBrush);
                } else {
                    mi.palette.setBrush(QPalette::Highlight, mi.palette.brush(QPalette::Button));
                }
                mi.palette.setBrush(QPalette::HighlightedText, mi.palette.brush(QPalette::ButtonText));

                bool checkable = mi.checkType != QStyleOptionMenuItem::NotCheckable;
                bool checked = checkable ? mi.checked : false;

                bool dis = !(opt->state & QStyle::State_Enabled),
                     act = opt->state & QStyle::State_Selected;

                if (!mi.icon.isNull()) {
                    QIcon::Mode mode = dis ? QIcon::Disabled : QIcon::Normal;
                    if (act && !dis)
                        mode = QIcon::Active;
                    QPixmap pixmap;
                    if (checked)
                        pixmap = mi.icon.pixmap(pixelMetric(PM_SmallIconSize), mode, QIcon::On);
                    else
                        pixmap = mi.icon.pixmap(pixelMetric(PM_SmallIconSize), mode);
                    int pixw = pixmap.width();
                    int pixh = pixmap.height();
                    QRenderRule iconRule = renderRule(w, opt, PseudoElement_MenuIcon);
                    if (!iconRule.hasGeometry()) {
                        iconRule.geo = new QStyleSheetGeometryData(pixw, pixh, pixw, pixh, -1, -1);
                    } else {
                        iconRule.geo->width = pixw;
                        iconRule.geo->height = pixh;
                    }
                    QRect iconRect = positionRect(w, subRule, iconRule, PseudoElement_MenuIcon, opt->rect, opt->direction);
                    iconRule.drawRule(p, iconRect);
                    QRect pmr(0, 0, pixw, pixh);
                    pmr.moveCenter(iconRect.center());
                    p->drawPixmap(pmr.topLeft(), pixmap);
                } else if (checkable) {
                    QRenderRule subSubRule = renderRule(w, opt, PseudoElement_MenuCheckMark);
                    QStyleOptionMenuItem newMi = mi;
                    newMi.rect = positionRect(w, subRule, subSubRule, PseudoElement_MenuCheckMark, opt->rect, opt->direction);
                    drawPrimitive(PE_IndicatorMenuCheckMark, &newMi, p, w);
                }

                QRect textRect = subRule.contentsRect(opt->rect);
                textRect.setWidth(textRect.width() - mi.tabWidth);
                QString s = mi.text;
                p->setPen(mi.palette.buttonText().color());
                if (!s.isEmpty()) {
                    int text_flags = Qt::AlignLeft | Qt::AlignVCenter | Qt::TextShowMnemonic | Qt::TextDontClip | Qt::TextSingleLine;
                    if (!styleHint(SH_UnderlineShortcut, &mi, w))
                        text_flags |= Qt::TextHideMnemonic;
                    int t = s.indexOf(QLatin1Char('\t'));
                    if (t >= 0) {
                        QRect vShortcutRect = visualRect(opt->direction, mi.rect,
                            QRect(textRect.topRight(), QPoint(mi.rect.right(), textRect.bottom())));
                        p->drawText(vShortcutRect, text_flags, s.mid(t + 1));
                        s = s.left(t);
                    }
                    p->drawText(textRect, text_flags, s.left(t));
                }

                if (mi.menuItemType == QStyleOptionMenuItem::SubMenu) {// draw sub menu arrow
                    PrimitiveElement arrow = (opt->direction == Qt::RightToLeft) ? PE_IndicatorArrowLeft : PE_IndicatorArrowRight;
                    QRenderRule subRule2 = renderRule(w, opt, PseudoElement_MenuRightArrow);
                    mi.rect = positionRect(w, subRule, subRule2, PseudoElement_MenuRightArrow, opt->rect, mi.direction);
                    drawPrimitive(arrow, &mi, p, w);
                }
            } else if (hasStyleRule(w, PseudoElement_MenuCheckMark)) {
                QWindowsStyle::drawControl(ce, &mi, p, w);
            } else {
                if (rule.hasDrawable() && !subRule.hasDrawable() && !(opt->state & QStyle::State_Selected)) {
                    mi.palette.setColor(QPalette::Window, Qt::transparent);
                    mi.palette.setColor(QPalette::Button, Qt::transparent);
                }
                baseStyle()->drawControl(ce, &mi, p, w);
            }

            if (subRule.hasFont)
                p->setFont(oldFont);

            return;
        }
        return;

    case CE_MenuBarItem:
        if (const QStyleOptionMenuItem *m = qstyleoption_cast<const QStyleOptionMenuItem *>(opt)) {
            QStyleOptionMenuItem mi(*m);
            QRenderRule subRule = renderRule(w, opt, PseudoElement_Item);
            mi.rect = subRule.contentsRect(opt->rect);
            rule.configurePalette(&mi.palette, QPalette::ButtonText, QPalette::Button);
            subRule.configurePalette(&mi.palette, QPalette::ButtonText, QPalette::Button);

            if (subRule.hasDrawable()) {
                subRule.drawRule(p, opt->rect);
                QCommonStyle::drawControl(ce, &mi, p, w);
            } else {
                baseStyle()->drawControl(ce, &mi, p, w);
            }
        }
        return;

#ifndef QT_NO_COMBOBOX
    case CE_ComboBoxLabel:
        if (!rule.hasBox())
            break;
        if (const QStyleOptionComboBox *cb = qstyleoption_cast<const QStyleOptionComboBox *>(opt)) {
            QRect editRect = subControlRect(CC_ComboBox, cb, SC_ComboBoxEditField, w);
            p->save();
            p->setClipRect(editRect);
            if (!cb->currentIcon.isNull()) {
                int spacing = rule.hasBox() ? rule.box()->spacing : -1;
                if (spacing == -1)
                    spacing = 6;
                QIcon::Mode mode = cb->state & State_Enabled ? QIcon::Normal : QIcon::Disabled;
                QPixmap pixmap = cb->currentIcon.pixmap(cb->iconSize, mode);
                QRect iconRect(editRect);
                iconRect.setWidth(cb->iconSize.width());
                iconRect = alignedRect(QApplication::layoutDirection(),
                                                           Qt::AlignLeft | Qt::AlignVCenter,
                                                           iconRect.size(), editRect);
                drawItemPixmap(p, iconRect, Qt::AlignCenter, pixmap);

                if (cb->direction == Qt::RightToLeft)
                        editRect.translate(-spacing - cb->iconSize.width(), 0);
                else
                        editRect.translate(cb->iconSize.width() + spacing, 0);
            }
            if (!cb->currentText.isEmpty() && !cb->editable) {
                drawItemText(p, editRect.adjusted(0, 0, 0, 0), Qt::AlignLeft | Qt::AlignVCenter, cb->palette,
                             cb->state & State_Enabled, cb->currentText);
            }
            p->restore();
            return;
        }
        break;
#endif // QT_NO_COMBOBOX

    case CE_Header:
        ParentStyle::drawControl(ce, opt, p, w);
        return;

    case CE_HeaderSection:
        if (const QStyleOptionHeader *header = qstyleoption_cast<const QStyleOptionHeader *>(opt)) {
            QRenderRule subRule = renderRule(w, opt, PseudoElement_HeaderViewSection);
            if (subRule.hasNativeBorder()) {
                QStyleOptionHeader hdr(*header);
                subRule.configurePalette(&hdr.palette, QPalette::ButtonText, QPalette::Button);

                if (subRule.baseStyleCanDraw()) {
                    baseStyle()->drawControl(CE_HeaderSection, &hdr, p, w);
                } else {
                    QWindowsStyle::drawControl(CE_HeaderSection, &hdr, p, w);
                }
            } else {
                subRule.drawRule(p, opt->rect);
            }
            return;
        }
        break;

    case CE_HeaderLabel:
        if (const QStyleOptionHeader *header = qstyleoption_cast<const QStyleOptionHeader *>(opt)) {
            QStyleOptionHeader hdr(*header);
            QRenderRule subRule = renderRule(w, opt, PseudoElement_HeaderViewSection);
            subRule.configurePalette(&hdr.palette, QPalette::ButtonText, QPalette::Button);
            QFont oldFont = p->font();
            if (subRule.hasFont)
                p->setFont(subRule.font.resolve(p->font()));
            baseStyle()->drawControl(ce, &hdr, p, w);
            if (subRule.hasFont)
                p->setFont(oldFont);
            return;
        }
        break;

    case CE_HeaderEmptyArea:
        if (rule.hasDrawable()) {
            return;
        }
        break;

    case CE_ProgressBar:
        QWindowsStyle::drawControl(ce, opt, p, w);
        return;

    case CE_ProgressBarGroove:
        if (rule.hasBorder()) {
            rule.drawRule(p, rule.boxRect(opt->rect, Margin));
            return;
        }
        break;

    case CE_ProgressBarContents: {
        QRenderRule subRule = renderRule(w, opt, PseudoElement_ProgressBarChunk);
        if (subRule.hasDrawable()) {
            if (const QStyleOptionProgressBarV2 *pb = qstyleoption_cast<const QStyleOptionProgressBarV2 *>(opt)) {
                p->save();
                p->setClipRect(pb->rect);

                qint64 minimum = qint64(pb->minimum);
                qint64 maximum = qint64(pb->maximum);
                qint64 progress = qint64(pb->progress);
                bool vertical = (pb->orientation == Qt::Vertical);
                bool inverted = pb->invertedAppearance;

                QTransform m;
                QRect rect = pb->rect;
                if (vertical) {
                    rect = QRect(rect.y(), rect.x(), rect.height(), rect.width());
                    m.rotate(90);
                    m.translate(0, -(rect.height() + rect.y()*2));
                }

                bool reverse = ((!vertical && (pb->direction == Qt::RightToLeft)) || vertical);
                if (inverted)
                    reverse = !reverse;
                const bool indeterminate = (pb->minimum == 0 && pb->maximum == 0);
                qreal fillRatio = indeterminate ? 0.50 : qreal(progress - minimum)/maximum - minimum;
                int fillWidth = int(rect.width() * fillRatio);
                int chunkWidth = fillWidth;
                if (subRule.hasContentsSize()) {
                    QSize sz = subRule.size();
                    chunkWidth = (opt->state & QStyle::State_Horizontal) ? sz.width() : sz.height();
                }

                QRect r = rect;
                if (pb->minimum == 0 && pb->maximum == 0) {
                    Q_D(const QWindowsStyle);
                    int chunkCount = fillWidth/chunkWidth;
                    int offset = (d->animateStep*8%rect.width());
                    int x = reverse ? r.left() + r.width() - offset - chunkWidth : r.x() + offset;
                    while (chunkCount > 0) {
                        r.setRect(x, rect.y(), chunkWidth, rect.height());
                        r = m.mapRect(QRectF(r)).toRect();
                        subRule.drawRule(p, r);
                        x += reverse ? -chunkWidth : chunkWidth;
                        if (reverse ? x < rect.left() : x > rect.right())
                            break;
                        --chunkCount;
                    }

                    r = rect;
                    x = reverse ? r.right() - (r.left() - x - chunkWidth)
                                : r.left() + (x - r.right() - chunkWidth);
                    while (chunkCount > 0) {
                        r.setRect(x, rect.y(), chunkWidth, rect.height());
                        r = m.mapRect(QRectF(r)).toRect();
                        subRule.drawRule(p, r);
                        x += reverse ? -chunkWidth : chunkWidth;
                        --chunkCount;
                    };
                } else {
                    int x = reverse ? r.left() + r.width() - chunkWidth : r.x();

                    for (int i = 0; i < ceil(qreal(fillWidth)/chunkWidth); ++i) {
                        r.setRect(x, rect.y(), chunkWidth, rect.height());
                        r = m.mapRect(QRectF(r)).toRect();
                        subRule.drawRule(p, r);
                        x += reverse ? -chunkWidth : chunkWidth;
                    }
                }

                p->restore();
                return;
            }
        }
                               }
        break;

    case CE_ProgressBarLabel:
        if (const QStyleOptionProgressBarV2 *pb = qstyleoption_cast<const QStyleOptionProgressBarV2 *>(opt)) {
            if (rule.hasBox() || rule.hasBorder() || hasStyleRule(w, PseudoElement_ProgressBarChunk)) {
                drawItemText(p, pb->rect, pb->textAlignment | Qt::TextSingleLine, pb->palette,
                             pb->state & State_Enabled, pb->text, QPalette::Text);
            } else {
                QStyleOptionProgressBarV2 pbCopy(*pb);
                rule.configurePalette(&pbCopy.palette, QPalette::HighlightedText, QPalette::Highlight);
                baseStyle()->drawControl(ce, &pbCopy, p, w);
            }
            return;
        }
        break;

    case CE_SizeGrip:
        if (const QStyleOptionSizeGrip *sgOpt = qstyleoption_cast<const QStyleOptionSizeGrip *>(opt)) {
            if (rule.hasDrawable()) {
                rule.drawFrame(p, opt->rect);
                p->save();
                switch (sgOpt->corner) {
                case Qt::BottomRightCorner: break;
                case Qt::BottomLeftCorner: p->rotate(90); break;
                case Qt::TopLeftCorner: p->rotate(180); break;
                case Qt::TopRightCorner: p->rotate(270); break;
                default: break;
                }
                rule.drawImage(p, opt->rect);
                p->restore();
            } else {
                QStyleOptionSizeGrip sg(*sgOpt);
                sg.rect = rule.contentsRect(opt->rect);
                baseStyle()->drawControl(CE_SizeGrip, &sg, p, w);
            }
            return;
        }
        break;

    case CE_ToolBoxTab:
        QWindowsStyle::drawControl(ce, opt, p, w);
        return;

    case CE_ToolBoxTabShape: {
            QRenderRule subRule = renderRule(w, opt, PseudoElement_ToolBoxTab);
            if (subRule.hasDrawable()) {
                subRule.drawRule(p, opt->rect);
                return;
            }
                            }
        break;

    case CE_ToolBoxTabLabel:
        if (const QStyleOptionToolBox *box = qstyleoption_cast<const QStyleOptionToolBox *>(opt)) {
            QStyleOptionToolBox boxCopy(*box);
            QRenderRule subRule = renderRule(w, opt, PseudoElement_ToolBoxTab);
            subRule.configurePalette(&boxCopy.palette, QPalette::ButtonText, QPalette::Button);
            QFont oldFont = p->font();
            if (subRule.hasFont)
                p->setFont(subRule.font);
            boxCopy.rect = subRule.contentsRect(opt->rect);
            QWindowsStyle::drawControl(ce, &boxCopy, p , w);
            if (subRule.hasFont)
                p->setFont(oldFont);
            return;
        }
        break;

    case CE_ScrollBarAddPage:
        pe1 = PseudoElement_ScrollBarAddPage;
        break;

    case CE_ScrollBarSubPage:
        pe1 = PseudoElement_ScrollBarSubPage;
        break;

    case CE_ScrollBarAddLine:
        pe1 = PseudoElement_ScrollBarAddLine;
        pe2 = (opt->state & QStyle::State_Horizontal) ? PseudoElement_ScrollBarRightArrow : PseudoElement_ScrollBarDownArrow;
        fallback = true;
        break;

    case CE_ScrollBarSubLine:
        pe1 = PseudoElement_ScrollBarSubLine;
        pe2 = (opt->state & QStyle::State_Horizontal) ? PseudoElement_ScrollBarLeftArrow : PseudoElement_ScrollBarUpArrow;
        fallback = true;
        break;

    case CE_ScrollBarFirst:
        pe1 = PseudoElement_ScrollBarFirst;
        break;

    case CE_ScrollBarLast:
        pe1 = PseudoElement_ScrollBarLast;
        break;

    case CE_ScrollBarSlider:
        pe1 = PseudoElement_ScrollBarSlider;
        fallback = true;
        break;

#ifndef QT_NO_TABBAR
    case CE_TabBarTab:
        if (hasStyleRule(w, PseudoElement_TabBarTab)) {
            QWindowsStyle::drawControl(ce, opt, p, w);
            return;
        }
        break;

    case CE_TabBarTabLabel:
    case CE_TabBarTabShape:
        if (const QStyleOptionTab *tab = qstyleoption_cast<const QStyleOptionTab *>(opt)) {
            QStyleOptionTabV2 tabCopy(*tab);
            QRenderRule subRule = renderRule(w, opt, PseudoElement_TabBarTab);
            QRect r = positionRect(w, subRule, PseudoElement_TabBarTab, opt->rect, opt->direction);
            if (ce == CE_TabBarTabShape && subRule.hasDrawable()) {
                subRule.drawRule(p, r);
                return;
            }
            subRule.configurePalette(&tabCopy.palette, QPalette::WindowText, QPalette::Window);
            QFont oldFont = p->font();
            if (subRule.hasFont)
                p->setFont(subRule.font);
            if (subRule.hasBox()) {
                tabCopy.rect = ce == CE_TabBarTabShape ? subRule.borderRect(r)
                                                       : subRule.contentsRect(r);
                QWindowsStyle::drawControl(ce, &tabCopy, p, w);
            } else {
                baseStyle()->drawControl(ce, &tabCopy, p, w);
            }
            if (subRule.hasFont)
                p->setFont(oldFont);

            return;
        }
       break;
#endif // QT_NO_TABBAR

    case CE_ColumnViewGrip:
       if (rule.hasDrawable()) {
           rule.drawRule(p, opt->rect);
           return;
       }
       break;

    default:
        break;
    }

    if (pe1 != PseudoElement_None) {
        QRenderRule subRule = renderRule(w, opt, pe1);
        if (subRule.hasDrawable()) {
            subRule.drawRule(p, opt->rect);
        } else if (fallback) {
            QWindowsStyle::drawControl(ce, opt, p, w);
            pe2 = PseudoElement_None;
        } else {
            baseStyle()->drawControl(ce, opt, p, w);
        }
        if (pe2 != PseudoElement_None) {
            QRenderRule subSubRule = renderRule(w, opt, pe2);
            QRect r = positionRect(w, subRule, subSubRule, pe2, opt->rect, opt->direction);
            subSubRule.drawRule(p, r);
        }
        return;
    }

    baseStyle()->drawControl(ce, opt, p, w);
}

void QStyleSheetStyle::drawItemPixmap(QPainter *p, const QRect &rect, int alignment, const
                                  QPixmap &pixmap) const
{
    baseStyle()->drawItemPixmap(p, rect, alignment, pixmap);
}

void QStyleSheetStyle::drawItemText(QPainter *painter, const QRect& rect, int alignment, const QPalette &pal,
                                bool enabled, const QString& text, QPalette::ColorRole textRole) const
{
    baseStyle()->drawItemText(painter, rect, alignment, pal, enabled, text, textRole);
}

void QStyleSheetStyle::drawPrimitive(PrimitiveElement pe, const QStyleOption *opt, QPainter *p,
                                     const QWidget *w) const
{
    int pseudoElement = PseudoElement_None;
    QRenderRule rule = renderRule(w, opt);

    switch (pe) {
    case PE_FrameStatusBar: {
        QRenderRule subRule = renderRule(w->parentWidget(), opt, PseudoElement_Item);
        if (subRule.hasDrawable()) {
            subRule.drawRule(p, opt->rect);
            return;
        }
        break;
                            }

    case PE_IndicatorArrowDown:
        pseudoElement = PseudoElement_DownArrow;
        break;

    case PE_IndicatorRadioButton:
        pseudoElement = PseudoElement_ExclusiveIndicator;
        break;

    case PE_IndicatorCheckBox:
    case PE_IndicatorViewItemCheck:
        pseudoElement = PseudoElement_Indicator;
        break;

    case PE_IndicatorHeaderArrow:
        if (const QStyleOptionHeader *hdr = qstyleoption_cast<const QStyleOptionHeader *>(opt)) {
            pseudoElement = hdr->sortIndicator == QStyleOptionHeader::SortUp
                ? PseudoElement_HeaderViewUpArrow
                : PseudoElement_HeaderViewDownArrow;
        }
        break;

    case PE_PanelButtonTool:
    case PE_PanelButtonCommand:
        if (!rule.nativeBorder()) {
            rule.drawRule(p, rule.boxRect(opt->rect, QRenderRule::Margin));
                        return;
        }
        break;

    case PE_IndicatorButtonDropDown: {
        QRenderRule subRule = renderRule(w, opt, PseudoElement_ToolButtonMenu);
        if (!subRule.nativeBorder()) {
            rule.drawBorder(p, opt->rect);
            return;
        }
        break;
                                     }

    case PE_FrameDefaultButton:
        if (rule.nativeBorder()) {
            if (rule.baseStyleCanDraw())
                break;
            QWindowsStyle::drawPrimitive(pe, opt, p, w);
        }
        return;

    case PE_Frame:
        if (const QStyleOptionFrame *frm = qstyleoption_cast<const QStyleOptionFrame *>(opt)) {
            if (rule.hasNativeBorder()) {
                QStyleOptionFrame frmOpt(*frm);
                rule.configurePalette(&frmOpt.palette, QPalette::Text, QPalette::Base);
                frmOpt.rect = rule.borderRect(frmOpt.rect);
                baseStyle()->drawPrimitive(pe, &frmOpt, p, w);
            } else {
                rule.drawBorder(p, rule.borderRect(opt->rect));
            }
        }
        return;

    case PE_PanelLineEdit:
        if (const QStyleOptionFrame *frm = qstyleoption_cast<const QStyleOptionFrame *>(opt)) {
            if (rule.hasNativeBorder()) {
                QStyleOptionFrame frmOpt(*frm);
                rule.configurePalette(&frmOpt.palette, QPalette::Text, QPalette::Base);
                frmOpt.rect = rule.borderRect(frmOpt.rect);

                if (rule.baseStyleCanDraw()) {
                    rule.drawBackgroundImage(p, opt->rect);
                    baseStyle()->drawPrimitive(pe, &frmOpt, p, w);
                } else {
                    rule.drawBackground(p, opt->rect);
                    baseStyle()->drawPrimitive(PE_FrameLineEdit, &frmOpt, p, w);
                }
            } else {
                rule.drawRule(p, opt->rect);
            }
        }
        return;

    case PE_Widget:
#ifndef QT_NO_SCROLLAREA
        if (const QAbstractScrollArea *sa = qobject_cast<const QAbstractScrollArea *>(w)) {
            const QAbstractScrollAreaPrivate *sap = sa->d_func();
            rule.drawBackground(p, opt->rect, sap->contentsOffset());
        } else
#endif
        {
            rule.drawBackground(p, opt->rect);
        }

        return;

    case PE_FrameMenu:
    case PE_PanelMenuBar:
        {
            QRenderRule subRule = renderRule(w, opt, PseudoElement_Item);
            if (rule.hasDrawable() && subRule.hasDrawable()) {
                rule.drawBorder(p, rule.borderRect(opt->rect));
                return;
            }
        }
        break;

    case PE_IndicatorToolBarSeparator:
    case PE_IndicatorToolBarHandle: {
        PseudoElement ps = pe == PE_IndicatorToolBarHandle ? PseudoElement_ToolBarHandle : PseudoElement_ToolBarSeparator;
        QRenderRule subRule = renderRule(w, opt, ps);
        if (subRule.hasDrawable()) {
            subRule.drawRule(p, opt->rect);
            return;
        }
                                    }
        break;

    case PE_IndicatorMenuCheckMark:
        pseudoElement = PseudoElement_MenuCheckMark;
        break;

    case PE_IndicatorArrowLeft:
        pseudoElement = PseudoElement_LeftArrow;
        break;

    case PE_IndicatorArrowRight:
        pseudoElement = PseudoElement_RightArrow;
        break;

    case PE_IndicatorColumnViewArrow:
        if (const QStyleOptionViewItem *viewOpt = qstyleoption_cast<const QStyleOptionViewItem *>(opt)) {
            bool reverse = (viewOpt->direction == Qt::RightToLeft);
            pseudoElement = reverse ? PseudoElement_LeftArrow : PseudoElement_RightArrow;
        } else {
            pseudoElement = PseudoElement_RightArrow;
        }
        break;

    case PE_IndicatorBranch:
        pseudoElement = PseudoElement_TreeViewBranch;
        break;

    case PE_PanelTipLabel:
        if (!rule.hasDrawable())
            break;

        if (const QStyleOptionFrame *frmOpt = qstyleoption_cast<const QStyleOptionFrame *>(opt)) {
            if (rule.hasNativeBorder()) {
                rule.drawBackground(p, opt->rect);
                QStyleOptionFrame optCopy(*frmOpt);
                optCopy.rect = rule.borderRect(opt->rect);
                optCopy.palette.setBrush(QPalette::Window, Qt::NoBrush); // oh dear
                baseStyle()->drawPrimitive(pe, &optCopy, p, w);
            } else {
                rule.drawRule(p, opt->rect);
            }
        }
        return;

    case PE_FrameGroupBox:
        if (rule.nativeBorder())
            break;
        rule.drawBorder(p, opt->rect);
        return;

#ifndef QT_NO_TABWIDGET
    case PE_FrameTabWidget:
        if (const QStyleOptionTabWidgetFrame *frm = qstyleoption_cast<const QStyleOptionTabWidgetFrame *>(opt)) {
            QRenderRule subRule = renderRule(w, opt, PseudoElement_TabWidgetPane);
            if (subRule.nativeBorder()) {
                subRule.drawBackground(p, opt->rect);
                QStyleOptionTabWidgetFrame frmCopy(*frm);
                subRule.configurePalette(&frmCopy.palette, QPalette::WindowText, QPalette::Window);
                baseStyle()->drawPrimitive(pe, &frmCopy, p, w);
            } else {
                subRule.drawRule(p, opt->rect);
            }
            return;
        }
        break;
#endif // QT_NO_TABWIDGET

    case PE_IndicatorProgressChunk:
        pseudoElement = PseudoElement_ProgressBarChunk;
        break;

    case PE_IndicatorTabTear:
        pseudoElement = PseudoElement_TabBarTear;
        break;

    default:
        break;
    }

    if (pseudoElement != PseudoElement_None) {
        QRenderRule subRule = renderRule(w, opt, pseudoElement);
        if (subRule.hasDrawable()) {
            subRule.drawRule(p, opt->rect);
        } else {
            baseStyle()->drawPrimitive(pe, opt, p, w);
        }
    } else {
        baseStyle()->drawPrimitive(pe, opt, p, w);
    }
}

QPixmap QStyleSheetStyle::generatedIconPixmap(QIcon::Mode iconMode, const QPixmap& pixmap,
                                          const QStyleOption *option) const
{
    return baseStyle()->generatedIconPixmap(iconMode, pixmap, option);
}

QStyle::SubControl QStyleSheetStyle::hitTestComplexControl(ComplexControl cc, const QStyleOptionComplex *opt,
                                 const QPoint &pt, const QWidget *w) const
{
    switch (cc) {
    case CC_ScrollBar: {
        QRenderRule rule = renderRule(w, opt);
        if (!rule.hasDrawable())
            break;
                       }
        // intentionally falls through
    case CC_SpinBox:
    case CC_GroupBox:
    case CC_ComboBox:
    case CC_Slider:
    case CC_ToolButton:
        return QWindowsStyle::hitTestComplexControl(cc, opt, pt, w);
    default:
        break;
    }

    return baseStyle()->hitTestComplexControl(cc, opt, pt, w);
}

QRect QStyleSheetStyle::itemPixmapRect(const QRect &rect, int alignment, const QPixmap &pixmap) const
{
    return baseStyle()->itemPixmapRect(rect, alignment, pixmap);
}

QRect QStyleSheetStyle::itemTextRect(const QFontMetrics &metrics, const QRect& rect, int alignment,
                                 bool enabled, const QString& text) const
{
    return baseStyle()->itemTextRect(metrics, rect, alignment, enabled, text);
}

int QStyleSheetStyle::pixelMetric(PixelMetric m, const QStyleOption *opt, const QWidget *w) const
{
    QRenderRule rule = renderRule(w, opt);
    QRenderRule subRule;

    switch (m) {
    case PM_MenuButtonIndicator:
#ifndef QT_NO_TOOLBUTTON
        // QToolButton adds this directly to the width
        if (qobject_cast<const QToolButton *>(w) && (rule.hasBox() || !rule.hasNativeBorder()))
            return 0;
#endif
        subRule = renderRule(w, opt, PseudoElement_PushButtonMenuIndicator);
        if (subRule.hasContentsSize())
            return subRule.size().width();
        break;

    case PM_ButtonShiftHorizontal:
    case PM_ButtonShiftVertical:
    case PM_ButtonMargin:
    case PM_ButtonDefaultIndicator:
        if (rule.hasBox())
            return 0;
        break;

    case PM_DefaultFrameWidth:
#ifndef QT_NO_COMBOBOX
        // QComboBox uses this for resizing its popup
        if (qobject_cast<const QComboBox *>(w)) {
            QAbstractItemView *view = qFindChild<QAbstractItemView *>(w);
            QRenderRule subRule = renderRule(view, PseudoElement_None);
            if (subRule.hasBorder())
                return subRule.border()->borders[TopEdge] + (subRule.hasBox() ? subRule.box()->paddings[TopEdge] : 0);
        } else
#endif
        if (rule.hasBorder())
            return rule.border()->borders[LeftEdge];
        break;

    case PM_ExclusiveIndicatorWidth:
    case PM_IndicatorWidth:
    case PM_ExclusiveIndicatorHeight:
    case PM_IndicatorHeight:
        subRule = renderRule(w, opt, PseudoElement_Indicator);
        if (subRule.hasContentsSize()) {
            return (m == PM_ExclusiveIndicatorWidth) || (m == PM_IndicatorWidth)
                        ? subRule.size().width() : subRule.size().height();
        }
        break;

    case PM_ToolTipLabelFrameWidth: // border + margin + padding (support only one width)
        if (!rule.hasDrawable())
            break;

        return (rule.border() ? rule.border()->borders[LeftEdge] : 0)
                + (rule.hasBox() ? rule.box()->margins[LeftEdge] + rule.box()->paddings[LeftEdge]: 0);

    case PM_ToolBarFrameWidth:
        if (rule.hasBorder() || rule.hasBox())
            return (rule.border() ? rule.border()->borders[LeftEdge] : 0)
                   + (rule.hasBox() ? rule.box()->paddings[LeftEdge]: 0);
        break;

    case PM_MenuPanelWidth:
    case PM_MenuBarPanelWidth:
        if (rule.hasBorder() || rule.hasBox())
            return (rule.border() ? rule.border()->borders[LeftEdge] : 0)
                   + (rule.hasBox() ? rule.box()->margins[LeftEdge]: 0);
        break;


    case PM_MenuHMargin:
    case PM_MenuBarHMargin:
        if (rule.hasBox())
            return rule.box()->paddings[LeftEdge];
        break;

    case PM_MenuVMargin:
    case PM_MenuBarVMargin:
        if (rule.hasBox())
            return rule.box()->paddings[TopEdge];
        break;

    case PM_ToolBarItemMargin:
        if (rule.hasBox())
            return rule.box()->margins[TopEdge];
        break;

    case PM_ToolBarItemSpacing:
    case PM_MenuBarItemSpacing:
        if (rule.hasBox() && rule.box()->spacing != -1)
            return rule.box()->spacing;
        break;

    case PM_MenuTearoffHeight:
    case PM_MenuScrollerHeight: {
        PseudoElement ps = m == PM_MenuTearoffHeight ? PseudoElement_MenuTearoff : PseudoElement_MenuScroller;
        subRule = renderRule(w, opt, ps);
        if (subRule.hasContentsSize())
            return subRule.size().height();
        break;
                                }

    case PM_ToolBarExtensionExtent:
        break;

    case PM_SplitterWidth:
    case PM_ToolBarSeparatorExtent:
    case PM_ToolBarHandleExtent: {
        PseudoElement ps;
        if (m == PM_ToolBarHandleExtent) ps = PseudoElement_ToolBarHandle;
        else if (m == PM_SplitterWidth) ps = PseudoElement_SplitterHandle;
        else ps = PseudoElement_ToolBarSeparator;
        subRule = renderRule(w, opt, ps);
        if (subRule.hasContentsSize()) {
            QSize sz = subRule.size();
            return (opt && opt->state & QStyle::State_Horizontal) ? sz.width() : sz.height();
        }
        break;
                                 }

    case PM_RadioButtonLabelSpacing:
        if (rule.hasBox() && rule.box()->spacing != -1)
            return rule.box()->spacing;

    case PM_CheckBoxLabelSpacing:
        if (qobject_cast<const QCheckBox *>(w)) {
            if (rule.hasBox() && rule.box()->spacing != -1)
                return rule.box()->spacing;
        }
        // assume group box
        subRule = renderRule(w, opt, PseudoElement_GroupBoxTitle);
        if (subRule.hasBox() && subRule.box()->spacing != -1)
            return subRule.box()->spacing;
        break;

#ifndef QT_NO_SCROLLBAR
    case PM_ScrollBarExtent:
        if (rule.hasContentsSize()) {
            QSize sz = rule.size();
            if (const QStyleOptionSlider *sb = qstyleoption_cast<const QStyleOptionSlider *>(opt))
                return sb->orientation == Qt::Horizontal ? sz.height() : sz.width();
            return sz.width() == -1 ? sz.height() : sz.width();
        }
        break;

    case PM_ScrollBarSliderMin:
        if (hasStyleRule(w, PseudoElement_ScrollBarSlider)) {
            subRule = renderRule(w, opt, PseudoElement_ScrollBarSlider);
            QSize msz = subRule.minimumSize();
            if (const QStyleOptionSlider *sb = qstyleoption_cast<const QStyleOptionSlider *>(opt))
                return sb->orientation == Qt::Horizontal ? msz.width() : msz.height();
            return msz.width() == -1 ? msz.height() : msz.width();
        }
        break;
#endif // QT_NO_SCROLLBAR

    case PM_ProgressBarChunkWidth:
        subRule = renderRule(w, opt, PseudoElement_ProgressBarChunk);
        if (subRule.hasContentsSize()) {
            QSize sz = subRule.size();
            return (opt->state & QStyle::State_Horizontal)
                   ? sz.width() : sz.height();
        }
        break;

    case PM_TabBarTabHSpace:
    case PM_TabBarTabVSpace:
        subRule = renderRule(w, opt, PseudoElement_TabBarTab);
        if (subRule.hasBox() || subRule.hasBorder())
            return 0;
        break;

    case PM_TabBarScrollButtonWidth:   {
        subRule = renderRule(w, opt, PseudoElement_TabBarScroller);
        if (subRule.hasContentsSize()) {
            QSize sz = subRule.size();
            return sz.width() != -1 ? sz.width() : sz.height();
        }
                                        }
        break;

    case PM_TabBarTabShiftHorizontal:
    case PM_TabBarTabShiftVertical:
        subRule = renderRule(w, opt, PseudoElement_TabBarTab);
        if (subRule.hasBox())
            return 0;
        break;

    case PM_TabBarBaseOverlap:
        if (hasStyleRule(w->parentWidget(), PseudoElement_TabWidgetPane)) {
            return 0;
        }
        break;

    case PM_SliderThickness: // horizontal slider's height (sizeHint)
    case PM_SliderLength: // minimum length of slider
        if (rule.hasContentsSize()) {
            bool horizontal = opt->state & QStyle::State_Horizontal;
            if (m == PM_SliderThickness) {
                QSize sz = rule.size();
                return horizontal ? sz.height() : sz.width();
            } else {
                QSize msz = rule.minimumContentsSize();
                return horizontal ? msz.width() : msz.height();
            }
        }
        break;

    case PM_SliderControlThickness: {
        QRenderRule subRule = renderRule(w, opt, PseudoElement_SliderHandle);
        if (!subRule.hasContentsSize())
            break;
        QSize size = subRule.size();
        return (opt->state & QStyle::State_Horizontal) ? size.height() : size.width();
                                    }

    default:
        break;
    }

    return baseStyle()->pixelMetric(m, opt, w);
}

QSize QStyleSheetStyle::sizeFromContents(ContentsType ct, const QStyleOption *opt,
                                         const QSize &csz, const QWidget *w) const
{
    QRenderRule rule = renderRule(w, opt);
    QSize sz = csz.expandedTo(rule.minimumContentsSize());

    switch (ct) {
    case CT_SpinBox: // ### hopelessly broken QAbstractSpinBox (part 1)
        if (rule.hasBox() || !rule.hasNativeBorder())
            return csz;
        return rule.baseStyleCanDraw() ? baseStyle()->sizeFromContents(ct, opt, sz, w)
                                       : QWindowsStyle::sizeFromContents(ct, opt, sz, w);
    case CT_ToolButton:
        sz += QSize(3, 3); // ### broken QToolButton
    case CT_ComboBox:
    case CT_PushButton:
    case CT_HeaderSection:
        if (rule.hasBox() || !rule.nativeBorder())
            return rule.boxSize(sz);
        sz = rule.baseStyleCanDraw() ? baseStyle()->sizeFromContents(ct, opt, sz, w)
                                     : QWindowsStyle::sizeFromContents(ct, opt, sz, w);
        return rule.boxSize(sz, Margin);

    case CT_GroupBox:
    case CT_LineEdit:
#ifndef QT_NO_SPINBOX
        // ### hopelessly broken QAbstractSpinBox (part 2)
        if (QAbstractSpinBox *spinBox = qobject_cast<QAbstractSpinBox *>(w->parentWidget())) {
            QRenderRule rule = renderRule(spinBox, opt);
            if (rule.hasBox() || !rule.hasNativeBorder())
                return csz;
            return rule.baseStyleCanDraw() ? baseStyle()->sizeFromContents(ct, opt, sz, w)
                                           : QWindowsStyle::sizeFromContents(ct, opt, sz, w);
        }
#endif
        if (rule.hasBox() || !rule.hasNativeBorder()) {
            return rule.boxSize(sz);
        }
        break;

    case CT_CheckBox:
    case CT_RadioButton:
        if (const QStyleOptionButton *btn = qstyleoption_cast<const QStyleOptionButton *>(opt)) {
            if (rule.hasBox() || rule.hasBorder() || hasStyleRule(w, PseudoElement_Indicator)) {
                bool isRadio = (ct == CT_RadioButton);
                int iw = pixelMetric(isRadio ? PM_ExclusiveIndicatorWidth
                                             : PM_IndicatorWidth, btn, w);
                int ih = pixelMetric(isRadio ? PM_ExclusiveIndicatorHeight
                                             : PM_IndicatorHeight, btn, w);

                int spacing = pixelMetric(isRadio ? PM_RadioButtonLabelSpacing
                                                  : PM_CheckBoxLabelSpacing, btn, w);
                sz.setWidth(sz.width() + iw + spacing);
                sz.setHeight(qMax(sz.height(), ih));
                return rule.boxSize(sz);
            }
        }
        break;

    case CT_Menu:
    case CT_MenuBar: // already has everything!
    case CT_ScrollBar:
        if (rule.hasBox() || rule.hasBorder())
            return sz;
        break;

    case CT_MenuItem:
        if (const QStyleOptionMenuItem *mi = qstyleoption_cast<const QStyleOptionMenuItem *>(opt)) {
            PseudoElement pe = (mi->menuItemType == QStyleOptionMenuItem::Separator)
                                    ? PseudoElement_MenuSeparator : PseudoElement_Item;
            QRenderRule subRule = renderRule(w, opt, pe);
            if ((pe == PseudoElement_MenuSeparator) && subRule.hasContentsSize()) {
                return QSize(sz.width(), subRule.size().height());
            } else if ((pe == PseudoElement_Item) && (subRule.hasBox() || subRule.hasBorder())) {
                int width = csz.width(), height = qMax(csz.height(), mi->fontMetrics.height());
                if (!mi->icon.isNull())
                    height = qMax(height, mi->icon.pixmap(pixelMetric(PM_SmallIconSize), QIcon::Normal).height());
                width += mi->tabWidth;
               return subRule.boxSize(csz.expandedTo(subRule.minimumContentsSize()));
            }
        }
        break;

    case CT_Splitter:
    case CT_MenuBarItem: {
        PseudoElement pe = (ct == CT_Splitter) ? PseudoElement_SplitterHandle : PseudoElement_Item;
        QRenderRule subRule = renderRule(w, opt, pe);
        if (subRule.hasBox() || subRule.hasBorder())
            return subRule.boxSize(sz);
        break;
                        }

    case CT_ProgressBar:
    case CT_SizeGrip:
        return (rule.hasContentsSize())
            ? rule.size(sz)
            : rule.boxSize(baseStyle()->sizeFromContents(ct, opt, sz, w));
        break;

    case CT_Slider:
        if (rule.hasBorder() || rule.hasBox() || rule.hasGeometry())
            return rule.boxSize(sz);
        break;

#ifndef QT_NO_TABBAR
    case CT_TabBarTab: {
        QRenderRule subRule = renderRule(w, opt, PseudoElement_TabBarTab);
        sz = csz.expandedTo(subRule.minimumContentsSize());
        if (subRule.hasBox() || subRule.hasBorder()) {
            sz = subRule.boxSize(sz);
            int spaceForIcon = 0;
            bool vertical = false;
            if (const QStyleOptionTab *tab = qstyleoption_cast<const QStyleOptionTab *>(opt)) {
                if (!tab->icon.isNull())
                    spaceForIcon = 6 /* icon offset */ + 4 /* spacing */ + 2 /* magic */; // ###: hardcoded to match with common style
                vertical = verticalTabs(tab->shape);
            }
            return sz + QSize(vertical ? 0 : spaceForIcon, vertical ? spaceForIcon : 0);
        }
        break;
                       }
#endif // QT_NO_TABBAR

    default:
        break;
    }

    return baseStyle()->sizeFromContents(ct, opt, sz, w);
}

/*!
    \internal
*/
QIcon QStyleSheetStyle::standardIconImplementation(StandardPixmap standardIcon, const QStyleOption *opt,
                                                   const QWidget *widget) const
{
    return QCommonStyle::standardIconImplementation(standardIcon, opt, widget);
}

QIcon QStyleSheetStyle::standardIcon(StandardPixmap standardIcon, const QStyleOption *option,
                                 const QWidget* w) const
{
    return baseStyle()->standardIcon(standardIcon, option, w);
}

QPalette QStyleSheetStyle::standardPalette() const
{
    return baseStyle()->standardPalette();
}

QPixmap QStyleSheetStyle::standardPixmap(StandardPixmap standardPixmap, const QStyleOption *option,
                                     const QWidget *w) const
{
    return baseStyle()->standardPixmap(standardPixmap, option, w);
}

int QStyleSheetStyle::layoutSpacing(QSizePolicy::ControlType control1, QSizePolicy::ControlType control2,
                          Qt::Orientation orientation, const QStyleOption *option,
                          const QWidget *widget) const
{
    return baseStyle()->layoutSpacing(control1, control2, orientation, option, widget);
}

int QStyleSheetStyle::layoutSpacingImplementation(QSizePolicy::ControlType  control1 ,
                                        QSizePolicy::ControlType  control2,
                                        Qt::Orientation orientation,
                                        const QStyleOption *  option ,
                                        const QWidget *  widget) const
{
    return baseStyle()->layoutSpacing(control1, control2, orientation, option, widget);
}

int QStyleSheetStyle::styleHint(StyleHint sh, const QStyleOption *opt, const QWidget *w,
                           QStyleHintReturn *shret) const
{
    // Prevent endless loop if somebody use isActiveWindow property as selector.
    // QWidget::isActiveWindow uses this styleHint to determine if the window is active or not
    if (sh == SH_Widget_ShareActivation)
        return baseStyle()->styleHint(sh, opt, w, shret);

    QRenderRule rule = renderRule(w, opt);
    QString s;
    switch (sh) {
        case SH_LineEdit_PasswordCharacter: s = QLatin1String("lineedit-password-character"); break;
        case SH_DitherDisabledText: s = QLatin1String("dither-disabled-text"); break;
        case SH_EtchDisabledText: s = QLatin1String("etch-disabled-text"); break;
        case SH_ItemView_ActivateItemOnSingleClick: s = QLatin1String("activate-on-singleclick"); break;
        case SH_ItemView_ShowDecorationSelected: s = QLatin1String("show-decoration-selected"); break;
        case SH_Table_GridLineColor: s = QLatin1String("gridline-color"); break;
        case SH_DialogButtonLayout: s = QLatin1String("button-layout"); break;
        case SH_ToolTipLabel_Opacity: s = QLatin1String("opacity"); break;
        case SH_ComboBox_Popup: s = QLatin1String("combobox-popup"); break;
        case SH_ComboBox_ListMouseTracking: s = QLatin1String("combobox-list-mousetracking"); break;
        case SH_MenuBar_AltKeyNavigation: s = QLatin1String("menubar-altkey-navigation"); break;
        case SH_Menu_Scrollable: s = QLatin1String("menu-scrollable"); break;
        case SH_DrawMenuBarSeparator: s = QLatin1String("menubar-separator"); break;
        case SH_MenuBar_MouseTracking: s = QLatin1String("mouse-tracking"); break;
        case SH_SpinBox_ClickAutoRepeatRate: s = QLatin1String("spinbox-click-autorepeat-rate"); break;
        case SH_SpinControls_DisableOnBounds: s = QLatin1String("spincontrol-disable-on-bounds"); break;
        case SH_MessageBox_TextInteractionFlags: s = QLatin1String("messagebox-text-interaction-flags"); break;
        case SH_ToolButton_PopupDelay: s = QLatin1String("toolbutton-popup-delay"); break;
        case SH_ToolBox_SelectedPageTitleBold:
            if (renderRule(w, opt, PseudoElement_ToolBoxTab).hasFont)
                return 0;
            break;
        case SH_GroupBox_TextLabelColor:
            if (rule.hasPalette() && rule.palette()->foreground.style() != Qt::NoBrush)
                return rule.palette()->foreground.color().rgba();
            break;
        case SH_ScrollView_FrameOnlyAroundContents: s = QLatin1String("scrollview-frame-around-contents"); break;
        case SH_ScrollBar_ContextMenu: s = QLatin1String("scrollbar-contextmenu"); break;
        case SH_ScrollBar_LeftClickAbsolutePosition: s = QLatin1String("scrollbar-leftclick-absolute-position"); break;
        case SH_ScrollBar_MiddleClickAbsolutePosition: s = QLatin1String("scrollbar-middleclick-absolute-position"); break;
        case SH_ScrollBar_RollBetweenButtons: s = QLatin1String("scrollbar-roll-between-buttons"); break;
        case SH_ScrollBar_ScrollWhenPointerLeavesControl: s = QLatin1String("scrollbar-scroll-when-pointer-leaves-control"); break;
        case SH_TabBar_Alignment:
#ifndef QT_NO_TABWIDGET
            if (qobject_cast<const QTabWidget *>(w)) {
                rule = renderRule(w, opt, PseudoElement_TabWidgetTabBar);
                if (rule.hasPosition())
                    return rule.position()->position;
            }
#endif // QT_NO_TABWIDGET
            s = QLatin1String("alignment");
            break;
        case SH_TabBar_ElideMode: s = QLatin1String("tabbar-elide-mode"); break;
        case SH_TabBar_PreferNoArrows: s = QLatin1String("tabbar-prefer-no-arrows"); break;
        case SH_ComboBox_PopupFrameStyle:
#ifndef QT_NO_COMBOBOX
            if (qobject_cast<const QComboBox *>(w)) {
                QAbstractItemView *view = qFindChild<QAbstractItemView *>(w);
                QRenderRule subRule = renderRule(view, PseudoElement_None);
                if (subRule.hasBox() || !subRule.hasNativeBorder())
                    return QFrame::NoFrame;
            }
#endif // QT_NO_COMBOBOX
            break;
        default: break;
    }
    if (!s.isEmpty() && rule.hasStyleHint(s)) {
        return rule.styleHint(s);
    }

    return baseStyle()->styleHint(sh, opt, w, shret);
}

QRect QStyleSheetStyle::subControlRect(ComplexControl cc, const QStyleOptionComplex *opt, SubControl sc,
                              const QWidget *w) const
{
    QRenderRule rule = renderRule(w, opt);
    switch (cc) {
    case CC_ComboBox:
        if (const QStyleOptionComboBox *cb = qstyleoption_cast<const QStyleOptionComboBox *>(opt)) {
            if (rule.hasBox() || !rule.hasNativeBorder()) {
                switch (sc) {
                case SC_ComboBoxFrame: return rule.borderRect(opt->rect);
                case SC_ComboBoxEditField: return rule.contentsRect(opt->rect);
                case SC_ComboBoxArrow: {
                    QRenderRule subRule = renderRule(w, opt, PseudoElement_ComboBoxDropDown);
                    return positionRect(w, rule, subRule, PseudoElement_ComboBoxDropDown, opt->rect, opt->direction);
                                                                           }
                case SC_ComboBoxListBoxPopup:
                default:
                    return baseStyle()->subControlRect(cc, opt, sc, w);
                }
            }

            QStyleOptionComboBox comboBox(*cb);
            comboBox.rect = rule.borderRect(opt->rect);
            return rule.baseStyleCanDraw() ? baseStyle()->subControlRect(cc, &comboBox, sc, w)
                                           : QWindowsStyle::subControlRect(cc, &comboBox, sc, w);
        }
        break;

#ifndef QT_NO_SPINBOX
    case CC_SpinBox:
        if (const QStyleOptionSpinBox *spin = qstyleoption_cast<const QStyleOptionSpinBox *>(opt)) {
            if (rule.hasBox() || !rule.hasNativeBorder()) {
                switch (sc) {
                case SC_SpinBoxFrame: return rule.borderRect(opt->rect);
                case SC_SpinBoxEditField: return rule.contentsRect(opt->rect);
                case SC_SpinBoxDown:
                case SC_SpinBoxUp: {
                    int pe = (sc == SC_SpinBoxUp ? PseudoElement_SpinBoxUpButton : PseudoElement_SpinBoxDownButton);
                    QRenderRule subRule = renderRule(w, opt, pe);
                    return positionRect(w, rule, subRule, pe, opt->rect, opt->direction);
                                   }
                default:
                    return baseStyle()->subControlRect(cc, opt, sc, w);
                }
            }

            QStyleOptionSpinBox spinBox(*spin);
            spinBox.rect = rule.borderRect(opt->rect);
            return rule.baseStyleCanDraw() ? baseStyle()->subControlRect(cc, &spinBox, sc, w)
                                           : QWindowsStyle::subControlRect(cc, &spinBox, sc, w);
        }
        break;
#endif // QT_NO_SPINBOX

    case CC_GroupBox:
        if (const QStyleOptionGroupBox *gb = qstyleoption_cast<const QStyleOptionGroupBox *>(opt)) {
            switch (sc) {
            case SC_GroupBoxFrame:
            case SC_GroupBoxContents: {
                if (rule.hasBox() || !rule.hasNativeBorder()) {
                    return sc == SC_GroupBoxFrame ? rule.borderRect(opt->rect)
                                                  : rule.contentsRect(opt->rect);
                }
                QStyleOptionGroupBox groupBox(*gb);
                groupBox.rect = rule.borderRect(opt->rect);
                return baseStyle()->subControlRect(cc, &groupBox, sc, w);
            }
            default:
            case SC_GroupBoxLabel:
            case SC_GroupBoxCheckBox: {
                QRenderRule indRule = renderRule(w, opt, PseudoElement_GroupBoxIndicator);
                QRenderRule labelRule = renderRule(w, opt, PseudoElement_GroupBoxTitle);
                if (!labelRule.hasPosition() && !labelRule.hasGeometry() && !labelRule.hasBox()
                    && !labelRule.hasBorder() && !indRule.hasContentsSize()) {
                    QStyleOptionGroupBox groupBox(*gb);
                    groupBox.rect = rule.borderRect(opt->rect);
                    return baseStyle()->subControlRect(cc, &groupBox, sc, w);
                }
                int tw = opt->fontMetrics.width(gb->text);
                int th = opt->fontMetrics.height();
                int spacing = pixelMetric(QStyle::PM_CheckBoxLabelSpacing, opt, w);
                int iw = pixelMetric(QStyle::PM_IndicatorWidth, opt, w);
                int ih = pixelMetric(QStyle::PM_IndicatorHeight, opt, w);

                if (gb->subControls & QStyle::SC_GroupBoxCheckBox) {
                    tw = tw + iw + spacing;
                    th = qMax(th, ih);
                }
                if (!labelRule.hasGeometry()) {
                    labelRule.geo = new QStyleSheetGeometryData(tw, th, tw, th, -1, -1);
                } else {
                    labelRule.geo->width = tw;
                    labelRule.geo->height = th;
                }
                if (!labelRule.hasPosition()) {
                    labelRule.p = new QStyleSheetPositionData(0, 0, 0, 0, defaultOrigin(PseudoElement_GroupBoxTitle),
                                                              gb->textAlignment, PositionMode_Static);
                }
                QRect r = positionRect(w, rule, labelRule, PseudoElement_GroupBoxTitle,
                                      opt->rect, opt->direction);
                if (gb->subControls & SC_GroupBoxCheckBox) {
                    r = labelRule.contentsRect(r);
                    if (sc == SC_GroupBoxLabel) {
                        r.setLeft(r.left() + iw + spacing);
                        r.setTop(r.center().y() - th/2);
                    } else {
                        r = QRect(r.left(), r.center().y() - ih/2, iw, ih);
                    }
                    return r;
                } else {
                    return labelRule.contentsRect(r);
                }
            }
            } // switch
        }
        break;

    case CC_ToolButton:
        if (const QStyleOptionToolButton *tb = qstyleoption_cast<const QStyleOptionToolButton *>(opt)) {
            if (rule.hasBox() || !rule.hasNativeBorder()) {
                switch (sc) {
                case SC_ToolButton: return rule.borderRect(opt->rect);
                case SC_ToolButtonMenu: {
                    QRenderRule subRule = renderRule(w, opt, PseudoElement_ToolButtonMenu);
                    return positionRect(w, rule, subRule, PseudoElement_ToolButtonMenu, opt->rect, opt->direction);
                                                                            }
                default:
                    break;
                }
            }

            QStyleOptionToolButton tool(*tb);
            tool.rect = rule.borderRect(opt->rect);
            return rule.baseStyleCanDraw() ? baseStyle()->subControlRect(cc, &tool, sc, w)
                                           : QWindowsStyle::subControlRect(cc, &tool, sc, w);
            }
            break;

#ifndef QT_NO_SCROLLBAR
    case CC_ScrollBar:
        if (const QStyleOptionSlider *sb = qstyleoption_cast<const QStyleOptionSlider *>(opt)) {
            if (rule.hasDrawable()) {
                QRenderRule subRule;
                PseudoElement pe = PseudoElement_None;
                switch (sc) {
                case SC_ScrollBarGroove:
                    return rule.contentsRect(opt->rect);
                case SC_ScrollBarAddPage:
                case SC_ScrollBarSubPage:
                case SC_ScrollBarSlider: {
                    subRule = renderRule(w, opt, PseudoElement_ScrollBarSlider);
                    Origin origin = subRule.hasPosition() ? subRule.position()->origin : defaultOrigin(PseudoElement_ScrollBarSlider);
                    QRect cr = rule.originRect(opt->rect, origin);
                    int maxlen = (sb->orientation == Qt::Horizontal) ? cr.width() : cr.height();
                    int sliderlen;

                    if (sb->maximum != sb->minimum) {
                        uint range = sb->maximum - sb->minimum;
                        sliderlen = (qint64(sb->pageStep) * maxlen) / (range + sb->pageStep);

                        int slidermin = pixelMetric(PM_ScrollBarSliderMin, sb, w);
                        if (sliderlen < slidermin || range > INT_MAX / 2)
                            sliderlen = slidermin;
                        if (sliderlen > maxlen)
                            sliderlen = maxlen;
                    } else {
                        sliderlen = maxlen;
                    }

                    int sliderstart = (sb->orientation == Qt::Horizontal ? cr.left() : cr.top())
                        + sliderPositionFromValue(sb->minimum, sb->maximum, sb->sliderPosition,
                                                  maxlen - sliderlen, sb->upsideDown);

                    QRect sr = (sb->orientation == Qt::Horizontal)
                               ? QRect(sliderstart, cr.top(), sliderlen, cr.height())
                               : QRect(cr.left(), sliderstart, cr.width(), sliderlen);
                    if (sc == SC_ScrollBarSlider) {
                        return sr;
                    } else if (sc == SC_ScrollBarSubPage) {
                        return QRect(cr.topLeft(), sb->orientation == Qt::Horizontal ? sr.bottomLeft() : sr.topRight());
                    } else { // SC_ScrollBarAddPage
                        return QRect(sb->orientation == Qt::Horizontal ? sr.topRight() : sr.bottomLeft(), cr.bottomRight());
                    }
                    break;
                }
                case SC_ScrollBarAddLine: pe = PseudoElement_ScrollBarAddLine; break;
                case SC_ScrollBarSubLine: pe = PseudoElement_ScrollBarSubLine; break;
                case SC_ScrollBarFirst:
                    if (!hasStyleRule(w, PseudoElement_ScrollBarFirst))
                        return QRect();
                    pe = PseudoElement_ScrollBarFirst;
                    break;
                case SC_ScrollBarLast:
                    if (!hasStyleRule(w, PseudoElement_ScrollBarLast))
                        return QRect();
                    pe = PseudoElement_ScrollBarLast;
                    break;
                default: break;
                }
                subRule = renderRule(w, opt, pe);
                return positionRect(w, rule, subRule, pe, opt->rect, opt->direction);
            }

            QStyleOptionSlider scrollBar(*sb);
            scrollBar.rect = rule.borderRect(opt->rect);
            return rule.baseStyleCanDraw() ? baseStyle()->subControlRect(cc, &scrollBar, sc, w)
                                           : QWindowsStyle::subControlRect(cc, &scrollBar, sc, w);
        }
        break;
#endif // QT_NO_SCROLLBAR

#ifndef QT_NO_SLIDER
    case CC_Slider:
        if (const QStyleOptionSlider *slider = qstyleoption_cast<const QStyleOptionSlider *>(opt)) {
            QRenderRule subRule = renderRule(w, opt, PseudoElement_SliderGroove);
            if (!subRule.hasDrawable())
                break;
            subRule.img = 0;
            QRect gr = positionRect(w, rule, subRule, PseudoElement_SliderGroove, opt->rect, opt->direction);
            switch (sc) {
            case SC_SliderGroove:
                return gr;
            case SC_SliderHandle: {
                bool horizontal = slider->orientation & Qt::Horizontal;
                QRect cr = subRule.contentsRect(gr);
                QRenderRule subRule2 = renderRule(w, opt, PseudoElement_SliderHandle);
                int len = horizontal ? subRule2.size().width() : subRule2.size().height();
                subRule2.img = 0;
                subRule2.geo = 0;
                cr = positionRect(w, subRule2, PseudoElement_SliderHandle, cr, opt->direction);
                int thickness = horizontal ? cr.height() : cr.width();
                int sliderPos = sliderPositionFromValue(slider->minimum, slider->maximum, slider->sliderPosition,
                                                        (horizontal ? cr.width() : cr.height()) - len, slider->upsideDown);
                cr = horizontal ? QRect(cr.x() + sliderPos, cr.y(), len, thickness)
                                  : QRect(cr.x(), cr.y() + sliderPos, thickness, len);
                return subRule2.borderRect(cr);
                break; }
            case SC_SliderTickmarks:
                // TODO...
            default:
                break;
            }
        }
        break;
#endif // QT_NO_SLIDER

    default:
        break;
    }

    return baseStyle()->subControlRect(cc, opt, sc, w);
}

QRect QStyleSheetStyle::subElementRect(SubElement se, const QStyleOption *opt, const QWidget *w) const
{
    QRenderRule rule = renderRule(w, opt);
#ifndef QT_NO_TABBAR
    int pe = PseudoElement_None;
#endif

    switch (se) {
    case SE_PushButtonContents:
    case SE_PushButtonFocusRect:
        if (const QStyleOptionButton *btn = qstyleoption_cast<const QStyleOptionButton *>(opt)) {
            QStyleOptionButton btnOpt(*btn);
            if (rule.hasBox() || !rule.nativeBorder())
                return visualRect(opt->direction, opt->rect, rule.contentsRect(opt->rect));
            return rule.baseStyleCanDraw() ? baseStyle()->subElementRect(se, &btnOpt, w)
                                           : QWindowsStyle::subElementRect(se, &btnOpt, w);
        }
        break;

    case SE_LineEditContents:
    case SE_FrameContents:
        if (rule.hasBox() || !rule.nativeBorder()) {
            return visualRect(opt->direction, opt->rect, rule.contentsRect(opt->rect));
        }
        break;

    case SE_CheckBoxIndicator:
    case SE_RadioButtonIndicator:
        if (rule.hasBox() || rule.hasBorder() || hasStyleRule(w, PseudoElement_Indicator)) {
            PseudoElement pe = se == SE_CheckBoxIndicator ? PseudoElement_Indicator : PseudoElement_ExclusiveIndicator;
            QRenderRule subRule = renderRule(w, opt, pe);
            return positionRect(w, rule, subRule, pe, opt->rect, opt->direction);
        }
        break;

    case SE_CheckBoxContents:
    case SE_RadioButtonContents:
        if (rule.hasBox() || rule.hasBorder() || hasStyleRule(w, PseudoElement_Indicator)) {
            bool isRadio = se == SE_RadioButtonContents;
            QRect ir = subElementRect(isRadio ? SE_RadioButtonIndicator : SE_CheckBoxIndicator,
                                      opt, w);
            ir = visualRect(opt->direction, opt->rect, ir);
            int spacing = pixelMetric(isRadio ? PM_RadioButtonLabelSpacing : PM_CheckBoxLabelSpacing, 0, w);
            QRect cr = rule.contentsRect(opt->rect);
            ir.setRect(ir.left() + ir.width() + spacing, cr.y(),
                       cr.width() - ir.width() - spacing, cr.height());
            return visualRect(opt->direction, opt->rect, ir);
        }
        break;

    case SE_ToolBoxTabContents:
        if (hasStyleRule(w->parentWidget(), PseudoElement_ToolBoxTab)) {
            QRenderRule subRule = renderRule(w->parentWidget(), opt, PseudoElement_ToolBoxTab);
            return visualRect(opt->direction, opt->rect, subRule.contentsRect(opt->rect));
        }
        break;

    case SE_RadioButtonFocusRect:
    case SE_RadioButtonClickRect: // focusrect | indicator
        if (rule.hasBox() || rule.hasBorder() || hasStyleRule(w, PseudoElement_Indicator)) {
            return opt->rect;
        }
        break;

    case SE_CheckBoxFocusRect:
    case SE_CheckBoxClickRect: // relies on indicator and contents
        return ParentStyle::subElementRect(se, opt, w);

    case SE_ViewItemCheckIndicator: {
        QRenderRule subRule = renderRule(w, opt, PseudoElement_Indicator);
        if (subRule.hasContentsSize()) {
            return alignedRect(opt->direction, Qt::AlignLeft|Qt::AlignVCenter, subRule.contentsSize(), opt->rect);
        }
                                    }
        break;

    case SE_HeaderArrow: {
        QRenderRule subRule = renderRule(w, opt, PseudoElement_HeaderViewUpArrow);
        if (subRule.hasPosition() || subRule.hasGeometry())
            return positionRect(w, rule, subRule, PseudoElement_HeaderViewUpArrow, opt->rect, opt->direction);
                         }
        break;

    case SE_HeaderLabel: {
        QRenderRule subRule = renderRule(w, opt, PseudoElement_HeaderViewSection);
        if (subRule.hasBox() || !subRule.hasNativeBorder())
            return subRule.contentsRect(opt->rect);
                         }
        break;

    case SE_ProgressBarGroove:
    case SE_ProgressBarContents:
    case SE_ProgressBarLabel:
        if (const QStyleOptionProgressBarV2 *pb = qstyleoption_cast<const QStyleOptionProgressBarV2 *>(opt)) {
            if (rule.hasBox() || rule.hasBorder() || rule.hasPosition() || hasStyleRule(w, PseudoElement_ProgressBarChunk)) {
                if (se == SE_ProgressBarGroove)
                    return rule.borderRect(pb->rect);
                else if (se == SE_ProgressBarContents)
                    return rule.contentsRect(pb->rect);

                QSize sz = pb->fontMetrics.size(0, pb->text);
                return QStyle::alignedRect(Qt::LeftToRight, rule.hasPosition() ? rule.position()->textAlignment : pb->textAlignment,
                                           sz, pb->rect);
            }
        }
        break;

#ifndef QT_NO_TABBAR
    case SE_TabWidgetLeftCorner:
        pe = PseudoElement_TabWidgetLeftCorner;
        // intentionally falls through
    case SE_TabWidgetRightCorner:
        if (pe == PseudoElement_None)
            pe = PseudoElement_TabWidgetRightCorner;
        // intentionally falls through
    case SE_TabWidgetTabBar:
        if (pe == PseudoElement_None)
            pe = PseudoElement_TabWidgetTabBar;
        // intentionally falls through
    case SE_TabWidgetTabPane:
    case SE_TabWidgetTabContents:
        if (pe == PseudoElement_None)
            pe = PseudoElement_TabWidgetPane;

        if (hasStyleRule(w, pe)) {
            QRect r = QWindowsStyle::subElementRect(pe == PseudoElement_TabWidgetPane ? SE_TabWidgetTabPane : se, opt, w);
            QRenderRule subRule = renderRule(w, opt, pe);
            r = positionRect(w, subRule, pe, r, opt->direction);
            if (se == SE_TabWidgetTabContents)
                r = subRule.contentsRect(r);
            return r;
        }
        break;

    case SE_TabBarTearIndicator: {
        QRenderRule subRule = renderRule(w, opt, PseudoElement_TabBarTear);
        if (subRule.hasContentsSize()) {
            QRect r;
            if (const QStyleOptionTab *tab = qstyleoption_cast<const QStyleOptionTab *>(opt)) {
                switch (tab->shape) {
                case QTabBar::RoundedNorth:
                case QTabBar::TriangularNorth:
                case QTabBar::RoundedSouth:
                case QTabBar::TriangularSouth:
                    r.setRect(tab->rect.left(), tab->rect.top(), subRule.size().width(), opt->rect.height());
                    break;
                case QTabBar::RoundedWest:
                case QTabBar::TriangularWest:
                case QTabBar::RoundedEast:
                case QTabBar::TriangularEast:
                    r.setRect(tab->rect.left(), tab->rect.top(), opt->rect.width(), subRule.size().height());
                    break;
                default:
                    break;
                }
                r = visualRect(opt->direction, opt->rect, r);
            }
            return r;
        }
        break;
    }
#endif // QT_NO_TABBAR

    default:
        break;
    }

    return baseStyle()->subElementRect(se, opt, w);
}

#include "moc_qstylesheetstyle_p.cpp"

#endif // QT_NO_STYLE_STYLESHEET
