|  | Home · All Classes · Main Classes · Grouped Classes · Modules · Functions |

# xform.h Example File
demos/affine/xform.h

        /****************************************************************************
        **
        ** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
        **
        ** This file is part of the demonstration applications of the Qt Toolkit.
        **
        ** Licensees holding valid Qt Preview licenses may use this file in
        ** accordance with the Qt Preview License Agreement provided with the
        ** Software.
        **
        ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
        ** information about Qt Commercial License Agreements.
        **
        ** Contact info@trolltech.com if any conditions of this licensing are
        ** not clear to you.
        **
        ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
        ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        **
        ****************************************************************************/

        #ifndef XFORM_H
        #define XFORM_H

        #include "arthurwidgets.h"

        #include <QBasicTimer>
        #include <QPolygonF>

        class HoverPoints;
        class QLineEdit;

        class XFormView : public ArthurFrame
        {
            Q_OBJECT

            Q_PROPERTY(bool animation READ animation WRITE setAnimation)
            Q_PROPERTY(double shear READ shear WRITE setShear)
            Q_PROPERTY(double rotation READ rotation WRITE setRotation)
            Q_PROPERTY(double scale READ scale WRITE setScale)

        public:
            XFormView(QWidget *parent);
            void paint(QPainter *);
            void drawVectorType(QPainter *painter);
            void drawPixmapType(QPainter *painter);
            void drawTextType(QPainter *painter);
            QSize sizeHint() const { return QSize(500, 500); }

            void mousePressEvent(QMouseEvent *e);
            void resizeEvent(QResizeEvent *e);
            HoverPoints *hoverPoints() { return pts; }

            QLineEdit *textEditor;

            bool animation() const { return timer.isActive(); }
            double shear() const { return m_shear; }
            double scale() const { return m_scale; }
            double rotation() const { return m_rotation; }
            void setShear(double s);
            void setScale(double s);
            void setRotation(double r);

        public slots:
            void setAnimation(bool animate);
            void updateCtrlPoints(const QPolygonF &);
            void changeRotation(int rotation);
            void changeScale(int scale);
            void changeShear(int shear);

            void setVectorType();
            void setPixmapType();
            void setTextType();
            void reset();

        signals:
            void rotationChanged(int rotation);
            void scaleChanged(int scale);
            void shearChanged(int shear);

        protected:
            void timerEvent(QTimerEvent *e);
            void wheelEvent(QWheelEvent *);

        private:
            enum XFormType { VectorType, PixmapType, TextType };

            QPolygonF ctrlPoints;
            HoverPoints *pts;
            double m_rotation;
            double m_scale;
            double m_shear;
            XFormType type;
            QPixmap pixmap;
            QBasicTimer timer;
        };

        class XFormWidget : public QWidget
        {
            Q_OBJECT
        public:
            XFormWidget(QWidget *parent);

        private:
            XFormView *view;
        };

        #endif // XFORM_H