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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 "gm.h"
#include "SkGpuDevice.h"
#include "SkNinePatch.h"
static void make_bitmap(SkBitmap* bitmap, GrContext* ctx, SkIRect* center) {
SkDevice* dev;
SkCanvas canvas;
const int kFixed = 28;
const int kStretchy = 8;
const int kSize = 2*kFixed + kStretchy;
if (ctx) {
dev = new SkGpuDevice(ctx, SkBitmap::kARGB_8888_Config, kSize, kSize);
*bitmap = dev->accessBitmap(false);
} else {
bitmap->setConfig(SkBitmap::kARGB_8888_Config, kSize, kSize);
bitmap->allocPixels();
dev = new SkDevice(*bitmap);
}
canvas.setDevice(dev)->unref();
canvas.clear(0);
SkRect r = SkRect::MakeWH(SkIntToScalar(kSize), SkIntToScalar(kSize));
const SkScalar strokeWidth = SkIntToScalar(6);
const SkScalar radius = SkIntToScalar(kFixed) - strokeWidth/2;
center->setXYWH(kFixed, kFixed, kStretchy, kStretchy);
SkPaint paint;
paint.setAntiAlias(true);
paint.setColor(0xFFFF0000);
canvas.drawRoundRect(r, radius, radius, paint);
r.setXYWH(SkIntToScalar(kFixed), 0, SkIntToScalar(kStretchy), SkIntToScalar(kSize));
paint.setColor(0x8800FF00);
canvas.drawRect(r, paint);
r.setXYWH(0, SkIntToScalar(kFixed), SkIntToScalar(kSize), SkIntToScalar(kStretchy));
paint.setColor(0x880000FF);
canvas.drawRect(r, paint);
}
namespace skiagm {
class NinePatchStretchGM : public GM {
public:
SkBitmap fBM;
NinePatchStretchGM() {}
protected:
virtual SkString onShortName() {
return SkString("ninepatch-stretch");
}
virtual SkISize onISize() {
return make_isize(400, 400);
}
static void drawNine(SkCanvas* canvas, const SkRect& dst, const SkBitmap& bm,
const SkIRect& center, const SkPaint* paint) {
SkIRect margin;
margin.set(center.fLeft, center.fTop, bm.width() - center.fRight,
bm.height() - center.fBottom);
SkNinePatch::DrawNine(canvas, dst, bm, margin, paint);
}
virtual void onDraw(SkCanvas* canvas) {
canvas->drawColor(SK_ColorBLACK);
SkBitmap bm;
SkIRect center;
make_bitmap(&bm, NULL /*SampleCode::GetGr()*/, ¢er);
// amount of bm that should not be stretched (unless we have to)
const SkScalar fixed = SkIntToScalar(bm.width() - center.width());
const SkTSize<SkScalar> size[] = {
{ fixed * 4 / 5, fixed * 4 / 5 }, // shrink in both axes
{ fixed * 4 / 5, fixed * 4 }, // shrink in X
{ fixed * 4, fixed * 4 / 5 }, // shrink in Y
{ fixed * 4, fixed * 4 }
};
canvas->drawBitmap(bm, SkIntToScalar(10), SkIntToScalar(10), NULL);
SkScalar x = SkIntToScalar(100);
SkScalar y = SkIntToScalar(100);
SkPaint paint;
paint.setFilterBitmap(true);
for (int iy = 0; iy < 2; ++iy) {
for (int ix = 0; ix < 2; ++ix) {
int i = ix * 2 + iy;
SkRect r = SkRect::MakeXYWH(x + ix * fixed, y + iy * fixed,
size[i].width(), size[i].height());
drawNine(canvas, r, bm, center, &paint);
}
}
}
private:
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static GM* MyFactory(void*) { return new NinePatchStretchGM; }
static GMRegistry reg(MyFactory);
}
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