diff options
-rw-r--r-- | gm/ninepatchstretch.cpp | 124 | ||||
-rw-r--r-- | gyp/gm.gyp | 1 |
2 files changed, 125 insertions, 0 deletions
diff --git a/gm/ninepatchstretch.cpp b/gm/ninepatchstretch.cpp new file mode 100644 index 0000000000..dfe0b7cbca --- /dev/null +++ b/gm/ninepatchstretch.cpp @@ -0,0 +1,124 @@ +/* + * 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); + +} + + + diff --git a/gyp/gm.gyp b/gyp/gm.gyp index cebd26f9d9..0c9f1454b7 100644 --- a/gyp/gm.gyp +++ b/gyp/gm.gyp @@ -18,6 +18,7 @@ '../gm/gmmain.cpp', '../gm/gradients.cpp', '../gm/lcdtext.cpp', + '../gm/ninepatchstretch.cpp', '../gm/nocolorbleed.cpp', '../gm/pathfill.cpp', '../gm/points.cpp', |