Add a way to save to PDF in SampleApp on Android and elsewhere.
In Android, add the PDF file to downloads, so it can be opened.
Reviewed at http://codereview.appspot.com/4638052/
git-svn-id: http://skia.googlecode.com/svn/trunk@1659 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SampleApp.cpp b/samplecode/SampleApp.cpp
index 2fb73b7..2d5d0ca 100644
--- a/samplecode/SampleApp.cpp
+++ b/samplecode/SampleApp.cpp
@@ -18,6 +18,10 @@
#include "GrGLInterface.h"
+#include "SkPDFDevice.h"
+#include "SkPDFDocument.h"
+#include "SkStream.h"
+
#define TEST_GPIPEx
#ifdef TEST_GPIPE
@@ -383,6 +387,9 @@
fZoomLevel = 0;
fZoomScale = SK_Scalar1;
+ fSaveToPdf = false;
+ fPdfCanvas = NULL;
+
// this->setConfig(SkBitmap::kRGB_565_Config);
this->setConfig(SkBitmap::kARGB_8888_Config);
this->setVisibleP(true);
@@ -412,6 +419,7 @@
SampleWindow::~SampleWindow() {
delete fPicture;
delete fGpuCanvas;
+ delete fPdfCanvas;
if (NULL != fGrContext) {
fGrContext->unref();
}
@@ -549,7 +557,7 @@
} else {
this->INHERITED::draw(canvas);
}
- if (fShowZoomer && fCanvasType != kGPU_CanvasType) {
+ if (fShowZoomer && fCanvasType != kGPU_CanvasType && !fSaveToPdf) {
// In the GPU case, INHERITED::draw calls beforeChildren, which
// creates an SkGpuCanvas. All further draw calls are directed
// at that canvas, which is deleted in afterChildren (which is
@@ -668,6 +676,12 @@
}
}
+void SampleWindow::saveToPdf()
+{
+ fSaveToPdf = true;
+ this->inval(NULL);
+}
+
SkCanvas* SampleWindow::beforeChildren(SkCanvas* canvas) {
if (kGPU_CanvasType != fCanvasType) {
#ifdef SK_SUPPORT_GL
@@ -675,47 +689,57 @@
#endif
}
- switch (fCanvasType) {
- case kRaster_CanvasType:
- canvas = this->INHERITED::beforeChildren(canvas);
- break;
- case kPicture_CanvasType:
- fPicture = new SkPicture;
- canvas = fPicture->beginRecording(9999, 9999);
- break;
- case kGPU_CanvasType: {
- if (make3DReady()) {
- SkDevice* device = canvas->getDevice();
- const SkBitmap& bitmap = device->accessBitmap(true);
-
- GrRenderTarget* renderTarget;
-
- GrPlatformSurfaceDesc desc;
- desc.reset();
- desc.fSurfaceType = kRenderTarget_GrPlatformSurfaceType;
- desc.fWidth = bitmap.width();
- desc.fHeight = bitmap.height();
- desc.fConfig = kRGBA_8888_GrPixelConfig;
- desc.fStencilBits = 8;
- GrGLint buffer;
- GR_GL_GetIntegerv(GR_GL_FRAMEBUFFER_BINDING, &buffer);
- desc.fPlatformRenderTarget = buffer;
-
- renderTarget = static_cast<GrRenderTarget*>(
- fGrContext->createPlatformSurface(desc));
- fGpuCanvas = new SkGpuCanvas(fGrContext, renderTarget);
- renderTarget->unref();
-
- device = new SkGpuDevice(fGrContext, renderTarget);
- fGpuCanvas->setDevice(device)->unref();
-
- fGpuCanvas->concat(canvas->getTotalMatrix());
- canvas = fGpuCanvas;
-
- } else {
+ if (fSaveToPdf) {
+ const SkBitmap& bmp = canvas->getDevice()->accessBitmap(false);
+ SkISize size = SkISize::Make(bmp.width(), bmp.height());
+ SkPDFDevice* pdfDevice = new SkPDFDevice(size, size,
+ canvas->getTotalMatrix());
+ fPdfCanvas = new SkCanvas(pdfDevice);
+ pdfDevice->unref();
+ canvas = fPdfCanvas;
+ } else {
+ switch (fCanvasType) {
+ case kRaster_CanvasType:
canvas = this->INHERITED::beforeChildren(canvas);
+ break;
+ case kPicture_CanvasType:
+ fPicture = new SkPicture;
+ canvas = fPicture->beginRecording(9999, 9999);
+ break;
+ case kGPU_CanvasType: {
+ if (make3DReady()) {
+ SkDevice* device = canvas->getDevice();
+ const SkBitmap& bitmap = device->accessBitmap(true);
+
+ GrRenderTarget* renderTarget;
+
+ GrPlatformSurfaceDesc desc;
+ desc.reset();
+ desc.fSurfaceType = kRenderTarget_GrPlatformSurfaceType;
+ desc.fWidth = bitmap.width();
+ desc.fHeight = bitmap.height();
+ desc.fConfig = kRGBA_8888_GrPixelConfig;
+ desc.fStencilBits = 8;
+ GrGLint buffer;
+ GR_GL_GetIntegerv(GR_GL_FRAMEBUFFER_BINDING, &buffer);
+ desc.fPlatformRenderTarget = buffer;
+
+ renderTarget = static_cast<GrRenderTarget*>(
+ fGrContext->createPlatformSurface(desc));
+ fGpuCanvas = new SkGpuCanvas(fGrContext, renderTarget);
+ renderTarget->unref();
+
+ device = new SkGpuDevice(fGrContext, renderTarget);
+ fGpuCanvas->setDevice(device)->unref();
+
+ fGpuCanvas->concat(canvas->getTotalMatrix());
+ canvas = fGpuCanvas;
+
+ } else {
+ canvas = this->INHERITED::beforeChildren(canvas);
+ }
+ break;
}
- break;
}
}
@@ -738,6 +762,34 @@
}
void SampleWindow::afterChildren(SkCanvas* orig) {
+ if (fSaveToPdf) {
+ fSaveToPdf = false;
+ if (fShowZoomer) {
+ showZoomer(fPdfCanvas);
+ }
+ SkString name;
+ name.printf("%s.pdf", this->getTitle());
+ SkPDFDocument doc;
+ SkPDFDevice* device = static_cast<SkPDFDevice*>(fPdfCanvas->getDevice());
+ doc.appendPage(device);
+#ifdef ANDROID
+ name.prepend("/sdcard/");
+#endif
+ SkFILEWStream stream(name.c_str());
+ if (stream.isValid()) {
+ doc.emitPDF(&stream);
+ const char* desc = "File saved from Skia SampleApp";
+ this->onPDFSaved(this->getTitle(), desc, name.c_str());
+ }
+ delete fPdfCanvas;
+ fPdfCanvas = NULL;
+
+ // We took over the draw calls in order to create the PDF, so we need
+ // to redraw.
+ this->inval(NULL);
+ return;
+ }
+
if (fRequestGrabImage) {
fRequestGrabImage = false;
@@ -1005,6 +1057,9 @@
case 'd':
SkGraphics::SetFontCacheUsed(0);
return true;
+ case 'e':
+ this->saveToPdf();
+ break;
case 'f':
this->toggleFPS();
break;