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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SampleCode.h"
#include "SkDumpCanvas.h"
#include "SkView.h"
#include "SkCanvas.h"
#include "SkGradientShader.h"
#include "SkGraphics.h"
#include "SkImageDecoder.h"
#include "SkOSFile.h"
#include "SkPath.h"
#include "SkPicture.h"
#include "SkRandom.h"
#include "SkRegion.h"
#include "SkShader.h"
#include "SkTileGridPicture.h"
#include "SkUtils.h"
#include "SkColorPriv.h"
#include "SkColorFilter.h"
#include "SkTime.h"
#include "SkTypeface.h"
#include "SkXfermode.h"
#include "SkStream.h"
#include "SkSurface.h"
#include "SkXMLParser.h"
class PictFileView : public SampleView {
public:
PictFileView(const char name[] = NULL)
: fFilename(name)
, fBBox(kNo_BBoxType)
, fTileSize(SkSize::Make(0, 0)) {
for (int i = 0; i < kBBoxTypeCount; ++i) {
fPictures[i] = NULL;
}
}
virtual ~PictFileView() {
for (int i = 0; i < kBBoxTypeCount; ++i) {
SkSafeUnref(fPictures[i]);
}
}
virtual void onTileSizeChanged(const SkSize &tileSize) SK_OVERRIDE {
if (tileSize != fTileSize) {
fTileSize = tileSize;
SkSafeSetNull(fPictures[kTileGrid_BBoxType]);
}
}
protected:
// overrides from SkEventSink
virtual bool onQuery(SkEvent* evt) SK_OVERRIDE {
if (SampleCode::TitleQ(*evt)) {
SkString name("P:");
const char* basename = strrchr(fFilename.c_str(), SkPATH_SEPARATOR);
name.append(basename ? basename+1: fFilename.c_str());
if (fBBox != kNo_BBoxType) {
name.append(fBBox == kRTree_BBoxType ? " <bbox: R>" : " <bbox: T>");
}
SampleCode::TitleR(evt, name.c_str());
return true;
}
return this->INHERITED::onQuery(evt);
}
virtual bool onEvent(const SkEvent& evt) SK_OVERRIDE {
if (evt.isType("PictFileView::toggleBBox")) {
fBBox = (BBoxType)((fBBox + 1) % kBBoxTypeCount);
return true;
}
return this->INHERITED::onEvent(evt);
}
virtual void onDrawContent(SkCanvas* canvas) SK_OVERRIDE {
SkASSERT(fBBox < kBBoxTypeCount);
SkPicture** picture = fPictures + fBBox;
if (!*picture) {
*picture = LoadPicture(fFilename.c_str(), fBBox);
}
if (*picture) {
canvas->drawPicture(**picture);
}
}
private:
enum BBoxType {
kNo_BBoxType,
kRTree_BBoxType,
kTileGrid_BBoxType,
kLast_BBoxType = kTileGrid_BBoxType
};
static const int kBBoxTypeCount = kLast_BBoxType + 1;
SkString fFilename;
SkPicture* fPictures[kBBoxTypeCount];
BBoxType fBBox;
SkSize fTileSize;
SkPicture* LoadPicture(const char path[], BBoxType bbox) {
SkPicture* pic = NULL;
SkBitmap bm;
if (SkImageDecoder::DecodeFile(path, &bm)) {
bm.setImmutable();
pic = SkNEW(SkPicture);
SkCanvas* can = pic->beginRecording(bm.width(), bm.height());
can->drawBitmap(bm, 0, 0, NULL);
pic->endRecording();
} else {
SkFILEStream stream(path);
if (stream.isValid()) {
pic = SkPicture::CreateFromStream(&stream);
} else {
SkDebugf("coun't load picture at \"path\"\n", path);
}
if (false) {
SkSurface* surf = SkSurface::NewRasterPMColor(pic->width(), pic->height());
surf->getCanvas()->drawPicture(*pic);
surf->unref();
}
if (false) { // re-record
SkPicture p2;
pic->draw(p2.beginRecording(pic->width(), pic->height()));
p2.endRecording();
SkString path2(path);
path2.append(".new.skp");
SkFILEWStream writer(path2.c_str());
p2.serialize(&writer);
}
}
if (!pic) {
return NULL;
}
SkPicture* bboxPicture = NULL;
switch (bbox) {
case kNo_BBoxType:
// no bbox playback necessary
break;
case kRTree_BBoxType:
bboxPicture = SkNEW(SkPicture);
break;
case kTileGrid_BBoxType: {
SkASSERT(!fTileSize.isEmpty());
SkTileGridPicture::TileGridInfo gridInfo;
gridInfo.fMargin = SkISize::Make(0, 0);
gridInfo.fOffset = SkIPoint::Make(0, 0);
gridInfo.fTileInterval = fTileSize.toRound();
bboxPicture = SkNEW_ARGS(SkTileGridPicture, (pic->width(), pic->height(), gridInfo));
} break;
default:
SkASSERT(false);
}
if (bboxPicture) {
pic->draw(bboxPicture->beginRecording(pic->width(), pic->height(),
SkPicture::kOptimizeForClippedPlayback_RecordingFlag));
bboxPicture->endRecording();
SkDELETE(pic);
return bboxPicture;
}
return pic;
}
typedef SampleView INHERITED;
};
SampleView* CreateSamplePictFileView(const char filename[]);
SampleView* CreateSamplePictFileView(const char filename[]) {
return new PictFileView(filename);
}
//////////////////////////////////////////////////////////////////////////////
#if 0
static SkView* MyFactory() { return new PictFileView; }
static SkViewRegister reg(MyFactory);
#endif
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