style/RoundedWidget.C

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/*
 * Copyright (C) 2006 Koen Deforche, Kessel-Lo, Belgium.
 *
 * See the LICENSE file for terms of use.
 */

#include <WCssDecorationStyle>
#include <WContainerWidget>
#include <WImage>

#include "RoundedWidget.h"
#include "CornerImage.h"

RoundedWidget::RoundedWidget(int corners, WContainerWidget *parent)
  : WCompositeWidget(parent),
    backgroundColor_(WColor(0xD4,0xDD,0xFF)),
    surroundingColor_(WColor(0xFF,0xFF,0xFF)),
    radius_(10),
    corners_(corners)
{
  setImplementation(impl_ = new WContainerWidget());
  contents_ = new WContainerWidget(impl_);

  create();
}

RoundedWidget::~RoundedWidget()
{
  if (images_[1])
    delete images_[1];
  if (images_[3])
    delete images_[3];
}

void RoundedWidget::create()
{
  if (corners_ & TopLeft)
    images_[0] = new CornerImage(CornerImage::TopLeft, backgroundColor_,
                                 surroundingColor_, radius_);
  else
    images_[0] = 0;

  if (corners_ & TopRight)
    images_[1] = new CornerImage(CornerImage::TopRight, backgroundColor_,
                                 surroundingColor_, radius_);
  else
    images_[1] = 0;

  if (corners_ & BottomLeft)
    images_[2] = new CornerImage(CornerImage::BottomLeft, backgroundColor_,
                                 surroundingColor_, radius_);
  else
    images_[2] = 0;

  if (corners_ & BottomRight)
    images_[3] = new CornerImage(CornerImage::BottomRight, backgroundColor_,
                                 surroundingColor_, radius_);
  else
    images_[3] = 0;

  /*
   * At the top: an image (top left corner) inside
   * a container widget with background image top right.
   */
  top_ = new WContainerWidget();
  top_->resize(WLength(), WLength(radius_));
  if (images_[1])
    top_->decorationStyle().setBackgroundImage(images_[1]->imageRef(),
                                               WCssDecorationStyle::NoRepeat,
                                               Top | Right);
  if (images_[0])
    top_->addWidget(images_[0]);
  impl_->insertWidget(top_, contents_); // insert top before the contents

  /*
   * At the bottom: an image (bottom left corner) inside
   * a container widget with background image bottom right.
   */
  bottom_ = new WContainerWidget();
  bottom_->resize(WLength(), WLength(radius_));
  if (images_[3])
    bottom_->decorationStyle().setBackgroundImage(images_[3]->imageRef(),
                                                  WCssDecorationStyle::NoRepeat,
                                                  Bottom | Right);
  if (images_[2])
    bottom_->addWidget(images_[2]);
  impl_->addWidget(bottom_);

  decorationStyle().setBackgroundColor(backgroundColor_);

  contents_->setMargin(WLength(radius_), Left | Right);
}

void RoundedWidget::setBackgroundColor(WColor color)
{
  backgroundColor_ = color;
  adjust();
}

void RoundedWidget::setCornerRadius(int radius)
{
  radius_ = radius;
  adjust();
}

void RoundedWidget::adjust()
{
  if (images_[0]) images_[0]->setRadius(radius_);
  if (images_[1]) images_[1]->setRadius(radius_);
  if (images_[2]) images_[2]->setRadius(radius_);
  if (images_[3]) images_[3]->setRadius(radius_);

  if (images_[0]) images_[0]->setForeground(backgroundColor_);
  if (images_[1]) images_[1]->setForeground(backgroundColor_);
  if (images_[2]) images_[2]->setForeground(backgroundColor_);
  if (images_[3]) images_[3]->setForeground(backgroundColor_);

  if (images_[1]) 
    top_->decorationStyle().setBackgroundImage(images_[1]->imageRef(),
                                               WCssDecorationStyle::NoRepeat,
                                               Top | Right);
  if (images_[3])
    bottom_->decorationStyle().setBackgroundImage(images_[3]->imageRef(),
                                                  WCssDecorationStyle::NoRepeat,
                                                  Bottom | Right);

  top_->resize(WLength(), WLength(radius_));
  bottom_->resize(WLength(), WLength(radius_));
  contents_->setMargin(WLength(radius_), Left | Right);

  decorationStyle().setBackgroundColor(backgroundColor_);
}

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