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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <QtGui>
#include "SkDebugger.h"
#include "SkDrawCommandGeometryWidget.h"
SkDrawCommandGeometryWidget::SkDrawCommandGeometryWidget(SkDebugger *debugger)
: QFrame()
, fDebugger(debugger)
, fCommandIndex(-1) {
this->setStyleSheet("QFrame {background-color: black; border: 1px solid #cccccc;}");
}
void SkDrawCommandGeometryWidget::resizeEvent(QResizeEvent* event) {
this->QFrame::resizeEvent(event);
QRect r = this->contentsRect();
int dim = std::min(r.width(), r.height());
if (dim == 0) {
fSurface = nullptr;
} else {
SkImageInfo info = SkImageInfo::MakeN32Premul(dim, dim);
fSurface = SkSurface::MakeRaster(info);
this->updateImage();
}
}
void SkDrawCommandGeometryWidget::paintEvent(QPaintEvent* event) {
this->QFrame::paintEvent(event);
if (!fSurface) {
return;
}
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
SkPixmap pixmap;
if (fSurface->peekPixels(&pixmap)) {
SkASSERT(pixmap.width() > 0);
SkASSERT(pixmap.height() > 0);
QRectF resultRect;
if (this->width() < this->height()) {
float ratio = this->width() / pixmap.width();
resultRect = QRectF(0, 0, this->width(), ratio * pixmap.height());
} else {
float ratio = this->height() / pixmap.height();
resultRect = QRectF(0, 0, ratio * pixmap.width(), this->height());
}
resultRect.moveCenter(this->contentsRect().center());
QImage image(reinterpret_cast<const uchar*>(pixmap.addr()),
pixmap.width(),
pixmap.height(),
pixmap.rowBytes(),
QImage::Format_ARGB32_Premultiplied);
painter.drawImage(resultRect, image);
}
}
void SkDrawCommandGeometryWidget::setDrawCommandIndex(int commandIndex) {
fCommandIndex = commandIndex;
this->updateImage();
}
void SkDrawCommandGeometryWidget::updateImage() {
if (!fSurface) {
return;
}
bool didRender = false;
const SkTDArray<SkDrawCommand*>& commands = fDebugger->getDrawCommands();
if (0 != commands.count() && fCommandIndex >= 0) {
SkASSERT(commands.count() > fCommandIndex);
SkDrawCommand* command = commands[fCommandIndex];
didRender = command->render(fSurface->getCanvas());
}
if (!didRender) {
fSurface->getCanvas()->clear(SK_ColorTRANSPARENT);
}
fSurface->getCanvas()->flush();
this->update();
}
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