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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 "SkColorPriv.h"
#include "SkShader.h"
#include "SkView.h"
#include "SkCanvas.h"
#include "SkUtils.h"
static SkBitmap make_bitmap() {
const int N = 1;
SkPMColor c[N];
for (int i = 0; i < N; i++) {
c[i] = SkPackARGB32(0x80, 0x80, 0, 0);
}
SkColorTable* ctable = new SkColorTable(c, N);
SkBitmap bm;
bm.allocPixels(SkImageInfo::Make(1, 1, kIndex_8_SkColorType,
kPremul_SkAlphaType),
nullptr, ctable);
ctable->unref();
bm.lockPixels();
for (int y = 0; y < bm.height(); y++) {
uint8_t* p = bm.getAddr8(0, y);
for (int x = 0; x < bm.width(); x++) {
p[x] = 0;
}
}
bm.unlockPixels();
return bm;
}
class TinyBitmapView : public SampleView {
SkBitmap fBM;
public:
TinyBitmapView() {
fBM = make_bitmap();
this->setBGColor(0xFFDDDDDD);
}
protected:
bool onQuery(SkEvent* evt) override {
if (SampleCode::TitleQ(*evt)) {
SampleCode::TitleR(evt, "TinyBitmap");
return true;
}
return this->INHERITED::onQuery(evt);
}
static void setBitmapOpaque(SkBitmap* bm, bool isOpaque) {
SkAutoLockPixels alp(*bm); // needed for ctable
bm->setAlphaType(isOpaque ? kOpaque_SkAlphaType : kPremul_SkAlphaType);
}
void onDrawContent(SkCanvas* canvas) override {
SkPaint paint;
paint.setShader(SkShader::MakeBitmapShader(fBM, SkShader::kRepeat_TileMode,
SkShader::kMirror_TileMode));
canvas->drawPaint(paint);
}
private:
typedef SkView INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static SkView* MyFactory() { return new TinyBitmapView; }
static SkViewRegister reg(MyFactory);
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