74 lines
2.1 KiB
C++
74 lines
2.1 KiB
C++
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/*
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* Copyright 2012 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkPicture.h"
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#include "SkStream.h"
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#include "SkCanvasWidget.h"
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#include <iostream>
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SkCanvasWidget::SkCanvasWidget(QWidget *parent) :
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QWidget(parent) {
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fBitmap = new SkBitmap();
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fBitmap->setConfig(SkBitmap::kARGB_8888_Config, 800, 800);
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fBitmap->allocPixels();
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fBitmap->eraseColor(0);
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fDevice = new SkDevice(*fBitmap);
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fCanvas = new SkCanvas(fDevice);
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fDebugCanvas = new SkDebugCanvas();
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this->setStyleSheet("QWidget {background-color: white; border: 1px solid #cccccc;}");
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}
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SkCanvasWidget::~SkCanvasWidget() {}
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void SkCanvasWidget::drawTo(int index) {
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delete fCanvas;
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fCanvas = new SkCanvas(fDevice);
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fDebugCanvas->drawTo(fCanvas, index+1);
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this->update();
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}
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void SkCanvasWidget::loadPicture(QString filename) {
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SkStream *stream = new SkFILEStream(filename.toAscii());
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SkPicture *picture = new SkPicture(stream);
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delete fDebugCanvas;
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fDebugCanvas = new SkDebugCanvas();
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picture->draw(fDebugCanvas);
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fDebugCanvas->draw(fCanvas);
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/* NOTE(chudy): This was a test to determine if the canvas size is accurately
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* saved in the bounds of the recorded picture. It is not. Everyone of the
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* sample GM images is 1000x1000. Even the one that claims it is
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* 2048x2048.
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std::cout << "Width: " << picture->width();
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std::cout << " Height: " << picture->height() << std::endl; */
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/* NOTE(chudy): Updated style sheet without a background specified to
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* draw over our SkCanvas. */
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this->setStyleSheet("QWidget {border: 1px solid #cccccc;}");
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this->update();
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}
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void SkCanvasWidget::paintEvent(QPaintEvent *event) {
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QPainter painter(this);
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QStyleOption opt;
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opt.init(this);
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if (fBitmap) {
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const QPoint origin(0,0);
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QImage image((uchar *)fBitmap->getPixels(), fBitmap->width(), fBitmap->height(), QImage::Format_ARGB32_Premultiplied);
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painter.drawImage(origin,image);
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}
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style()->drawPrimitive(QStyle::PE_Widget, &opt, &painter, this);
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painter.end();
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}
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