OLD | NEW |
1 | 1 |
2 /* | 2 /* |
3 * Copyright 2012 Google Inc. | 3 * Copyright 2012 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 #include "SkRasterWidget.h" | 9 #include "SkRasterWidget.h" |
| 10 #include "SkDebugger.h" |
| 11 #include <QtGui> |
10 | 12 |
11 SkRasterWidget::SkRasterWidget(SkDebugger *debugger) : QWidget() { | 13 SkRasterWidget::SkRasterWidget(SkDebugger *debugger) |
12 fBitmap.allocN32Pixels(800, 800); | 14 : QWidget() |
13 fBitmap.eraseColor(SK_ColorTRANSPARENT); | 15 , fDebugger(debugger) |
14 fDevice = new SkBitmapDevice(fBitmap); | 16 , fNeedImageUpdate(false) { |
15 fDebugger = debugger; | |
16 fCanvas = new SkCanvas(fDevice); | |
17 this->setStyleSheet("QWidget {background-color: black; border: 1px solid #cc
cccc;}"); | 17 this->setStyleSheet("QWidget {background-color: black; border: 1px solid #cc
cccc;}"); |
18 } | 18 } |
19 | 19 |
20 SkRasterWidget::~SkRasterWidget() { | 20 void SkRasterWidget::resizeEvent(QResizeEvent* event) { |
21 SkSafeUnref(fCanvas); | 21 this->QWidget::resizeEvent(event); |
22 SkSafeUnref(fDevice); | |
23 } | |
24 | 22 |
25 void SkRasterWidget::resizeEvent(QResizeEvent* event) { | 23 QRect r = this->contentsRect(); |
26 fBitmap.allocN32Pixels(event->size().width(), event->size().height()); | 24 if (r.width() == 0 || r.height() == 0) { |
27 fBitmap.eraseColor(SK_ColorTRANSPARENT); | 25 fSurface.reset(NULL); |
28 SkSafeUnref(fCanvas); | 26 } else { |
29 SkSafeUnref(fDevice); | 27 SkImageInfo info = SkImageInfo::MakeN32Premul(r.width(), r.height()); |
30 fDevice = new SkBitmapDevice(fBitmap); | 28 fSurface.reset(SkSurface::NewRaster(info)); |
31 fCanvas = new SkCanvas(fDevice); | 29 } |
32 this->update(); | 30 this->updateImage(); |
33 } | 31 } |
34 | 32 |
35 void SkRasterWidget::paintEvent(QPaintEvent* event) { | 33 void SkRasterWidget::paintEvent(QPaintEvent* event) { |
36 if (!this->isHidden()) { | 34 QPainter painter(this); |
37 fDebugger->draw(fCanvas); | 35 painter.setRenderHint(QPainter::Antialiasing); |
38 QPainter painter(this); | 36 QStyleOption opt; |
39 QStyleOption opt; | 37 opt.init(this); |
40 opt.init(this); | 38 style()->drawPrimitive(QStyle::PE_Widget, &opt, &painter, this); |
41 | 39 |
42 style()->drawPrimitive(QStyle::PE_Widget, &opt, &painter, this); | 40 if (!fSurface) { |
| 41 return; |
| 42 } |
43 | 43 |
44 QPoint origin(0,0); | 44 if (fNeedImageUpdate) { |
45 QImage image((uchar *)fBitmap.getPixels(), fBitmap.width(), | 45 fDebugger->draw(fSurface->getCanvas()); |
46 fBitmap.height(), QImage::Format_ARGB32_Premultiplied); | 46 fSurface->getCanvas()->flush(); |
47 | 47 fNeedImageUpdate = false; |
48 #if SK_R32_SHIFT == 0 | |
49 painter.drawImage(origin, image.rgbSwapped()); | |
50 #else | |
51 painter.drawImage(origin, image); | |
52 #endif | |
53 painter.end(); | |
54 emit drawComplete(); | 48 emit drawComplete(); |
55 } | 49 } |
| 50 |
| 51 SkImageInfo info; |
| 52 size_t rowBytes; |
| 53 if (const void* pixels = fSurface->peekPixels(&info, &rowBytes)) { |
| 54 QImage image(reinterpret_cast<const uchar*>(pixels), |
| 55 info.width(), |
| 56 info.height(), |
| 57 rowBytes, |
| 58 QImage::Format_ARGB32_Premultiplied); |
| 59 #if SK_R32_SHIFT == 0 |
| 60 painter.drawImage(this->contentsRect(), image.rgbSwapped()); |
| 61 #else |
| 62 painter.drawImage(this->contentsRect(), image); |
| 63 #endif |
| 64 } |
56 } | 65 } |
| 66 |
| 67 void SkRasterWidget::updateImage() { |
| 68 if (!fSurface) { |
| 69 return; |
| 70 } |
| 71 fNeedImageUpdate = true; |
| 72 this->update(); |
| 73 } |
OLD | NEW |