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| 1 |
| 2 /* |
| 3 * Copyright 2014 Google Inc. |
| 4 * |
| 5 * Use of this source code is governed by a BSD-style license that can be |
| 6 * found in the LICENSE file. |
| 7 */ |
| 8 |
| 9 #include <QtGui> |
| 10 |
| 11 #include "SkDebugger.h" |
| 12 #include "SkDrawCommandGeometryWidget.h" |
| 13 |
| 14 SkDrawCommandGeometryWidget::SkDrawCommandGeometryWidget(SkDebugger *debugger) |
| 15 : QFrame() |
| 16 , fDebugger(debugger) { |
| 17 this->setStyleSheet("QFrame {background-color: black; border: 1px solid #ccc
ccc;}"); |
| 18 } |
| 19 |
| 20 void SkDrawCommandGeometryWidget::resizeEvent(QResizeEvent* event) { |
| 21 this->QFrame::resizeEvent(event); |
| 22 QRect r = this->contentsRect(); |
| 23 int dim = std::min(r.width(), r.height()); |
| 24 if (dim == 0) { |
| 25 fSurface.reset(NULL); |
| 26 } else { |
| 27 SkImageInfo info = SkImageInfo::MakeN32Premul(dim, dim); |
| 28 fSurface.reset(SkSurface::NewRaster(info)); |
| 29 this->updateImage(); |
| 30 } |
| 31 } |
| 32 |
| 33 void SkDrawCommandGeometryWidget::paintEvent(QPaintEvent* event) { |
| 34 this->QFrame::paintEvent(event); |
| 35 |
| 36 if (!fSurface) { |
| 37 return; |
| 38 } |
| 39 |
| 40 QPainter painter(this); |
| 41 painter.setRenderHint(QPainter::Antialiasing); |
| 42 |
| 43 SkImageInfo info; |
| 44 size_t rowPixels; |
| 45 if (const void* pixels = fSurface->peekPixels(&info, &rowPixels)) { |
| 46 SkASSERT(info.width() > 0); |
| 47 SkASSERT(info.height() > 0); |
| 48 |
| 49 QRectF resultRect; |
| 50 if (this->width() < this->height()) { |
| 51 float ratio = this->width() / info.width(); |
| 52 resultRect = QRectF(0, 0, this->width(), ratio * info.height()); |
| 53 } else { |
| 54 float ratio = this->height() / info.height(); |
| 55 resultRect = QRectF(0, 0, ratio * info.width(), this->height()); |
| 56 } |
| 57 |
| 58 resultRect.moveCenter(this->contentsRect().center()); |
| 59 |
| 60 QImage image(reinterpret_cast<const uchar*>(pixels), |
| 61 info.width(), |
| 62 info.height(), |
| 63 QImage::Format_ARGB32_Premultiplied); |
| 64 painter.drawImage(resultRect, image); |
| 65 } |
| 66 } |
| 67 |
| 68 void SkDrawCommandGeometryWidget::updateImage() { |
| 69 if (!fSurface) { |
| 70 return; |
| 71 } |
| 72 |
| 73 bool didRender = false; |
| 74 const SkTDArray<SkDrawCommand*>& commands = fDebugger->getDrawCommands(); |
| 75 if (0 != commands.count()) { |
| 76 SkDrawCommand* command = commands[fDebugger->index()]; |
| 77 didRender = command->render(fSurface->getCanvas()); |
| 78 } |
| 79 |
| 80 if (!didRender) { |
| 81 fSurface->getCanvas()->clear(SK_ColorTRANSPARENT); |
| 82 } |
| 83 |
| 84 fSurface->getCanvas()->flush(); |
| 85 update(); |
| 86 } |
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