e16efc1882
git-svn-id: http://skia.googlecode.com/svn/trunk@7406 2bbb7eff-a529-9590-31e7-b0007b416f81
83 lines
2.1 KiB
C++
83 lines
2.1 KiB
C++
|
|
/*
|
|
* 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() {
|
|
SkBitmap bm;
|
|
const int N = 1;
|
|
SkColorTable* ctable = new SkColorTable(N);
|
|
|
|
SkPMColor* c = ctable->lockColors();
|
|
for (int i = 0; i < N; i++) {
|
|
c[i] = SkPackARGB32(0x80, 0x80, 0, 0);
|
|
}
|
|
ctable->unlockColors(true);
|
|
bm.setConfig(SkBitmap::kIndex8_Config, 1, 1);
|
|
bm.allocPixels(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:
|
|
// overrides from SkEventSink
|
|
virtual bool onQuery(SkEvent* evt) {
|
|
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->setIsOpaque(isOpaque);
|
|
SkColorTable* ctable = bm->getColorTable();
|
|
if (ctable) {
|
|
ctable->setIsOpaque(isOpaque);
|
|
}
|
|
}
|
|
|
|
virtual void onDrawContent(SkCanvas* canvas) {
|
|
SkShader* s = SkShader::CreateBitmapShader(fBM, SkShader::kRepeat_TileMode,
|
|
SkShader::kMirror_TileMode);
|
|
SkPaint paint;
|
|
paint.setShader(s)->unref();
|
|
canvas->drawPaint(paint);
|
|
}
|
|
|
|
private:
|
|
typedef SkView INHERITED;
|
|
};
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
static SkView* MyFactory() { return new TinyBitmapView; }
|
|
static SkViewRegister reg(MyFactory);
|