d98120e447
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1828273002 Review URL: https://codereview.chromium.org/1828273002
74 lines
1.9 KiB
C++
74 lines
1.9 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 "SkRasterWidget.h"
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#include "SkDebugger.h"
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#include <QtGui>
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SkRasterWidget::SkRasterWidget(SkDebugger *debugger)
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: QWidget()
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, fDebugger(debugger)
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, fNeedImageUpdate(false) {
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this->setStyleSheet("QWidget {background-color: black; border: 1px solid #cccccc;}");
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}
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void SkRasterWidget::resizeEvent(QResizeEvent* event) {
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this->QWidget::resizeEvent(event);
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QRect r = this->contentsRect();
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if (r.width() == 0 || r.height() == 0) {
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fSurface = nullptr;
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} else {
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SkImageInfo info = SkImageInfo::MakeN32Premul(r.width(), r.height());
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fSurface = SkSurface::MakeRaster(info);
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}
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this->updateImage();
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}
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void SkRasterWidget::paintEvent(QPaintEvent* event) {
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing);
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QStyleOption opt;
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opt.init(this);
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style()->drawPrimitive(QStyle::PE_Widget, &opt, &painter, this);
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if (!fSurface) {
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return;
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}
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if (fNeedImageUpdate) {
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fDebugger->draw(fSurface->getCanvas());
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fSurface->getCanvas()->flush();
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fNeedImageUpdate = false;
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Q_EMIT drawComplete();
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}
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SkPixmap pixmap;
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if (fSurface->peekPixels(&pixmap)) {
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QImage image(reinterpret_cast<const uchar*>(pixmap.addr()),
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pixmap.width(),
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pixmap.height(),
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pixmap.rowBytes(),
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QImage::Format_ARGB32_Premultiplied);
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#if SK_R32_SHIFT == 0
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painter.drawImage(this->contentsRect(), image.rgbSwapped());
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#else
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painter.drawImage(this->contentsRect(), image);
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#endif
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}
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}
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void SkRasterWidget::updateImage() {
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if (!fSurface) {
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return;
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}
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fNeedImageUpdate = true;
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this->update();
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}
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