5fb6bd4b7e
Create a custom typeface and scaler to render simple paths the same on all platforms. GM tests are modified to explicitly select the custom typeface. R=reed@google.com, mtklein@google.com, bungeman@google.com TBR=reed Author: caryclark@google.com Review URL: https://codereview.chromium.org/348323003
91 lines
3.1 KiB
C++
91 lines
3.1 KiB
C++
/*
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* Copyright 2013 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 "gm.h"
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#include "SkBitmapSource.h"
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// This GM exercises the SkBitmapSource ImageFilter class.
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class BitmapSourceGM : public skiagm::GM {
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public:
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BitmapSourceGM() {
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}
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protected:
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virtual SkString onShortName() SK_OVERRIDE {
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return SkString("bitmapsource");
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}
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void makeBitmap() {
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fBitmap.allocN32Pixels(100, 100);
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SkCanvas canvas(fBitmap);
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canvas.clear(0x00000000);
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SkPaint paint;
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paint.setAntiAlias(true);
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sk_tool_utils::set_portable_typeface(&paint);
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paint.setColor(0xFFFFFFFF);
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paint.setTextSize(SkIntToScalar(96));
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const char* str = "e";
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canvas.drawText(str, strlen(str), SkIntToScalar(20), SkIntToScalar(70), paint);
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}
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virtual SkISize onISize() SK_OVERRIDE { return SkISize::Make(500, 150); }
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virtual void onOnceBeforeDraw() SK_OVERRIDE {
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this->makeBitmap();
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}
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static void fillRectFiltered(SkCanvas* canvas, const SkRect& clipRect, SkImageFilter* filter) {
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SkPaint paint;
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paint.setImageFilter(filter);
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canvas->save();
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canvas->clipRect(clipRect);
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canvas->drawPaint(paint);
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canvas->restore();
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}
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virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
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canvas->clear(0x00000000);
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{
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SkRect srcRect = SkRect::MakeXYWH(20, 20, 30, 30);
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SkRect dstRect = SkRect::MakeXYWH(0, 10, 60, 60);
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SkRect clipRect = SkRect::MakeXYWH(0, 0, 100, 100);
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SkRect bounds;
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fBitmap.getBounds(&bounds);
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SkAutoTUnref<SkImageFilter> bitmapSource(SkBitmapSource::Create(fBitmap));
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SkAutoTUnref<SkImageFilter> bitmapSourceSrcRect(SkBitmapSource::Create(fBitmap, srcRect, srcRect));
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SkAutoTUnref<SkImageFilter> bitmapSourceSrcRectDstRect(SkBitmapSource::Create(fBitmap, srcRect, dstRect));
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SkAutoTUnref<SkImageFilter> bitmapSourceDstRectOnly(SkBitmapSource::Create(fBitmap, bounds, dstRect));
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// Draw an unscaled bitmap.
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fillRectFiltered(canvas, clipRect, bitmapSource);
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canvas->translate(SkIntToScalar(100), 0);
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// Draw an unscaled subset of the source bitmap (srcRect -> srcRect).
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fillRectFiltered(canvas, clipRect, bitmapSourceSrcRect);
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canvas->translate(SkIntToScalar(100), 0);
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// Draw a subset of the bitmap scaled to a destination rect (srcRect -> dstRect).
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fillRectFiltered(canvas, clipRect, bitmapSourceSrcRectDstRect);
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canvas->translate(SkIntToScalar(100), 0);
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// Draw the entire bitmap scaled to a destination rect (bounds -> dstRect).
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fillRectFiltered(canvas, clipRect, bitmapSourceDstRectOnly);
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canvas->translate(SkIntToScalar(100), 0);
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}
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}
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private:
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SkBitmap fBitmap;
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typedef GM INHERITED;
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};
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///////////////////////////////////////////////////////////////////////////////
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DEF_GM( return new BitmapSourceGM; )
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