9c9b8d90c8
git-svn-id: http://skia.googlecode.com/svn/trunk@2237 2bbb7eff-a529-9590-31e7-b0007b416f81
110 lines
3.2 KiB
C++
110 lines
3.2 KiB
C++
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/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SampleCode.h"
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#include "SkCanvas.h"
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#include "SkPaint.h"
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#include "SkGpuDevice.h"
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static void make_bitmap(SkBitmap* bitmap, GrContext* ctx, SkIRect* center) {
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SkDevice* dev;
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SkCanvas canvas;
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const int kFixed = 28;
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const int kStretchy = 8;
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const int kSize = 2*kFixed + kStretchy;
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if (ctx) {
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dev = new SkGpuDevice(ctx, SkBitmap::kARGB_8888_Config, kSize, kSize);
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*bitmap = dev->accessBitmap(false);
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} else {
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bitmap->setConfig(SkBitmap::kARGB_8888_Config, kSize, kSize);
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bitmap->allocPixels();
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dev = new SkDevice(*bitmap);
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}
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canvas.setDevice(dev)->unref();
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canvas.clear(0);
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SkRect r = SkRect::MakeWH(SkIntToScalar(kSize), SkIntToScalar(kSize));
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const SkScalar strokeWidth = SkIntToScalar(6);
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const SkScalar radius = SkIntToScalar(kFixed) - strokeWidth/2;
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center->setXYWH(kFixed, kFixed, kStretchy, kStretchy);
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setColor(0xFFFF0000);
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canvas.drawRoundRect(r, radius, radius, paint);
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r.setXYWH(SkIntToScalar(kFixed), 0, SkIntToScalar(kStretchy), SkIntToScalar(kSize));
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paint.setColor(0x8800FF00);
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canvas.drawRect(r, paint);
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r.setXYWH(0, SkIntToScalar(kFixed), SkIntToScalar(kSize), SkIntToScalar(kStretchy));
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paint.setColor(0x880000FF);
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canvas.drawRect(r, paint);
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}
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class NinePatchView : public SampleView {
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public:
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NinePatchView() {}
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protected:
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// overrides from SkEventSink
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virtual bool onQuery(SkEvent* evt) {
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if (SampleCode::TitleQ(*evt)) {
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SampleCode::TitleR(evt, "NinePatch");
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return true;
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}
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return this->INHERITED::onQuery(evt);
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}
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virtual void onDrawContent(SkCanvas* canvas) {
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SkBitmap bm;
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SkIRect center;
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make_bitmap(&bm, SampleCode::GetGr(), ¢er);
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// amount of bm that should not be stretched (unless we have to)
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const SkScalar fixed = SkIntToScalar(bm.width() - center.width());
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const SkTSize<SkScalar> size[] = {
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{ fixed * 4 / 5, fixed * 4 / 5 }, // shrink in both axes
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{ fixed * 4 / 5, fixed * 4 }, // shrink in X
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{ fixed * 4, fixed * 4 / 5 }, // shrink in Y
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{ fixed * 4, fixed * 4 }
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};
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canvas->drawBitmap(bm, SkIntToScalar(10), SkIntToScalar(10), NULL);
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SkScalar x = SkIntToScalar(100);
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SkScalar y = SkIntToScalar(100);
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SkPaint paint;
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paint.setFilterBitmap(true);
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for (int iy = 0; iy < 2; ++iy) {
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for (int ix = 0; ix < 2; ++ix) {
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int i = ix * 2 + iy;
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SkRect r = SkRect::MakeXYWH(x + ix * fixed, y + iy * fixed,
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size[i].width(), size[i].height());
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canvas->drawBitmapNine(bm, center, r, &paint);
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}
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}
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}
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private:
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SkScalar fX, fY;
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typedef SampleView INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static SkView* MyFactory() { return new NinePatchView; }
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static SkViewRegister reg(MyFactory);
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