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      1 /*
      2  * Copyright 2013 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 #include "gm.h"
      9 #include "SkCanvas.h"
     10 #include "SkGradientShader.h"
     11 #include "../src/fonts/SkGScalerContext.h"
     12 
     13 class ColorTypeGM : public skiagm::GM {
     14 public:
     15     ColorTypeGM()
     16         : fColorType(nullptr) {
     17     }
     18 
     19     virtual ~ColorTypeGM() {
     20         SkSafeUnref(fColorType);
     21     }
     22 
     23 protected:
     24     void onOnceBeforeDraw() override {
     25         const SkColor colors[] = {
     26             SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE,
     27             SK_ColorMAGENTA, SK_ColorCYAN, SK_ColorYELLOW
     28         };
     29         SkMatrix local;
     30         local.setRotate(180);
     31         SkShader* s = SkGradientShader::CreateSweep(0,0, colors, nullptr,
     32                                                     SK_ARRAY_COUNT(colors), 0, &local);
     33 
     34         SkPaint paint;
     35         paint.setAntiAlias(true);
     36         paint.setShader(s)->unref();
     37 
     38         SkTypeface* orig = sk_tool_utils::create_portable_typeface("serif",
     39                                                             SkTypeface::kBold);
     40         if (nullptr == orig) {
     41             orig = SkTypeface::RefDefault();
     42         }
     43         fColorType = new SkGTypeface(orig, paint);
     44         orig->unref();
     45     }
     46 
     47     SkString onShortName() override {
     48         return SkString("colortype");
     49     }
     50 
     51     SkISize onISize() override {
     52         return SkISize::Make(640, 480);
     53     }
     54 
     55     void onDraw(SkCanvas* canvas) override {
     56         SkPaint paint;
     57         paint.setAntiAlias(true);
     58         paint.setTypeface(fColorType);
     59 
     60         for (SkScalar size = 10; size <= 100; size += 10) {
     61             paint.setTextSize(size);
     62             canvas->translate(0, paint.getFontMetrics(nullptr));
     63             canvas->drawText("Hamburgefons", 12, 10, 10, paint);
     64         }
     65     }
     66 
     67 private:
     68     SkTypeface* fColorType;
     69 
     70     typedef skiagm::GM INHERITED;
     71 };
     72 
     73 DEF_GM(return new ColorTypeGM;)
     74