src/third_party/skia/gm/colortype.cpp

   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         const SkColor colors[] = {
  17             SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE,
  18             SK_ColorMAGENTA, SK_ColorCYAN, SK_ColorYELLOW
  19         };
  20         SkMatrix local;
  21         local.setRotate(180);
  22         SkShader* s = SkGradientShader::CreateSweep(0,0, colors, NULL,
  23                                                     SK_ARRAY_COUNT(colors), 0, &local);
  24
  25         SkPaint paint;
  26         paint.setAntiAlias(true);
  27         paint.setShader(s)->unref();
  28
  29         SkTypeface* orig = sk_tool_utils::create_portable_typeface("Times",
  30                                                             SkTypeface::kBold);
  31         if (NULL == orig) {
  32             orig = SkTypeface::RefDefault();
  33         }
  34         fColorType = SkNEW_ARGS(SkGTypeface, (orig, paint));
  35         orig->unref();
  36     }
  37
  38     virtual ~ColorTypeGM() {
  39         fColorType->unref();
  40     }
  41
  42 protected:
  43     virtual SkString onShortName() SK_OVERRIDE {
  44         return SkString("colortype");
  45     }
  46
  47     virtual SkISize onISize() SK_OVERRIDE {
  48         return SkISize::Make(640, 480);
  49     }
  50
  51     virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
  52         SkPaint paint;
  53         paint.setAntiAlias(true);
  54         paint.setTypeface(fColorType);
  55
  56         for (SkScalar size = 10; size <= 100; size += 10) {
  57             paint.setTextSize(size);
  58             canvas->translate(0, paint.getFontMetrics(NULL));
  59             canvas->drawText("Hamburgefons", 12, 10, 10, paint);
  60         }
  61     }
  62
  63     virtual uint32_t onGetFlags() const {
  64         return kSkipPipe_Flag | kSkipPicture_Flag;
  65     }
  66
  67 private:
  68     SkTypeface* fColorType;
  69
  70     typedef skiagm::GM INHERITED;
  71 };
  72
  73 DEF_GM( return SkNEW(ColorTypeGM); )