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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 "SkView.h"
#include "SkCanvas.h"
#include "SkImageDecoder.h"
#include "SkStream.h"
static const struct {
SkBitmap::Config fPrefConfig;
bool fDither;
} gRec[] = {
{ SkBitmap::kIndex8_Config, false },
{ SkBitmap::kARGB_8888_Config, false },
{ SkBitmap::kARGB_4444_Config, false },
{ SkBitmap::kARGB_4444_Config, true },
{ SkBitmap::kRGB_565_Config, false },
{ SkBitmap::kRGB_565_Config, true },
};
class DecodeView : public SkView {
public:
SkBitmap fBitmap[SK_ARRAY_COUNT(gRec)];
DecodeView() {
SkFILEStream stream("/skimages/index.png");
SkImageDecoder* codec = SkImageDecoder::Factory(&stream);
if (codec) {
for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); i++) {
stream.rewind();
codec->setDitherImage(gRec[i].fDither);
codec->decode(&stream, &fBitmap[i], gRec[i].fPrefConfig,
SkImageDecoder::kDecodePixels_Mode);
}
}
}
protected:
// overrides from SkEventSink
virtual bool onQuery(SkEvent* evt) {
if (SampleCode::TitleQ(*evt)) {
SampleCode::TitleR(evt, "ImageDecoder");
return true;
}
return this->INHERITED::onQuery(evt);
}
void drawBG(SkCanvas* canvas) {
canvas->drawColor(0xFFDDDDDD);
// canvas->drawColor(SK_ColorWHITE);
}
virtual void onDraw(SkCanvas* canvas) {
this->drawBG(canvas);
canvas->translate(SkIntToScalar(10), SkIntToScalar(20));
for (size_t i = 0; i < SK_ARRAY_COUNT(fBitmap); i++) {
canvas->drawBitmap(fBitmap[i], 0, 0);
canvas->translate(SkIntToScalar(fBitmap[i].width()), 0);
}
}
private:
typedef SkView INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static SkView* MyFactory() { return new DecodeView; }
static SkViewRegister reg(MyFactory);
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