d15750c0c7
BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1812323003 Review URL: https://codereview.chromium.org/1812323003
107 lines
2.9 KiB
C++
107 lines
2.9 KiB
C++
/*
|
|
* Copyright 2013 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#include "SkTypes.h"
|
|
|
|
#ifdef SAMPLE_PDF_FILE_VIEWER
|
|
|
|
#include "SampleCode.h"
|
|
#include "SkDumpCanvas.h"
|
|
#include "SkView.h"
|
|
#include "SkCanvas.h"
|
|
#include "SkGradientShader.h"
|
|
#include "SkGraphics.h"
|
|
#include "SkOSFile.h"
|
|
#include "SkPath.h"
|
|
#include "SkPicture.h"
|
|
#include "SkRandom.h"
|
|
#include "SkRegion.h"
|
|
#include "SkShader.h"
|
|
#include "SkUtils.h"
|
|
#include "SkColorPriv.h"
|
|
#include "SkColorFilter.h"
|
|
#include "SkTime.h"
|
|
#include "SkTypeface.h"
|
|
#include "SkXfermode.h"
|
|
|
|
#include "SkPdfRenderer.h"
|
|
|
|
class PdfFileViewer : public SampleView {
|
|
private:
|
|
SkString fFilename;
|
|
SkPicture* fPicture; // TODO(edisonn): multiple pages, one page / picture, make it an array
|
|
|
|
static SkPicture* LoadPdf(const char path[]) {
|
|
SkAutoTDelete<SkPdfRenderer> renderer(SkPdfRenderer::CreateFromFile(path));
|
|
if (nullptr == renderer.get()) {
|
|
return nullptr;
|
|
}
|
|
|
|
SkPicture* pic = new SkPicture;
|
|
SkCanvas* canvas = pic->beginRecording((int) renderer->MediaBox(0).width(),
|
|
(int) renderer->MediaBox(0).height());
|
|
renderer->renderPage(0, canvas, renderer->MediaBox(0));
|
|
pic->endRecording();
|
|
return pic;
|
|
}
|
|
|
|
public:
|
|
PdfFileViewer(const char name[] = nullptr) : fFilename(name) {
|
|
fPicture = nullptr;
|
|
}
|
|
|
|
virtual ~PdfFileViewer() {
|
|
SkSafeUnref(fPicture);
|
|
}
|
|
|
|
protected:
|
|
// overrides from SkEventSink
|
|
virtual bool onQuery(SkEvent* evt) {
|
|
if (SampleCode::TitleQ(*evt)) {
|
|
SkString name("P:");
|
|
const char* basename = strrchr(fFilename.c_str(), SkPATH_SEPARATOR);
|
|
name.append(basename ? basename+1: fFilename.c_str());
|
|
SampleCode::TitleR(evt, name.c_str());
|
|
return true;
|
|
}
|
|
return this->INHERITED::onQuery(evt);
|
|
}
|
|
|
|
virtual bool onEvent(const SkEvent& evt) {
|
|
// TODO(edisonn): add here event handlers to disable clipping, or to show helpful info
|
|
// like pdf object from click, ...
|
|
// TODO(edisonn): first, next, prev, last page navigation + slideshow
|
|
return this->INHERITED::onEvent(evt);
|
|
}
|
|
|
|
virtual void onDrawContent(SkCanvas* canvas) {
|
|
if (!fPicture) {
|
|
fPicture = LoadPdf(fFilename.c_str());
|
|
}
|
|
if (fPicture) {
|
|
canvas->drawPicture(*fPicture);
|
|
}
|
|
}
|
|
|
|
private:
|
|
typedef SampleView INHERITED;
|
|
};
|
|
|
|
SampleView* CreateSamplePdfFileViewer(const char filename[]);
|
|
SampleView* CreateSamplePdfFileViewer(const char filename[]) {
|
|
return new PdfFileViewer(filename);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
#if 0
|
|
static SkView* MyFactory() { return new PdfFileViewer; }
|
|
static SkViewRegister reg(MyFactory);
|
|
#endif
|
|
|
|
#endif // SAMPLE_PDF_FILE_VIEWER
|