gm/strokefill.cpp

   1 /*
   2  * Copyright 2011 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 "SkPath.h"
  11 #include "SkTypeface.h"
  12
  13 namespace skiagm {
  14
  15 class StrokeFillGM : public GM {
  16 public:
  17     StrokeFillGM() {
  18
  19     }
  20
  21 protected:
  22
  23     SkString onShortName() SK_OVERRIDE {
  24         return SkString("stroke-fill");
  25     }
  26
  27     SkISize onISize() SK_OVERRIDE {
  28         return SkISize::Make(640, 480);
  29     }
  30
  31     static void show_bold(SkCanvas* canvas, const void* text, int len,
  32                           SkScalar x, SkScalar y, const SkPaint& paint) {
  33         SkPaint p(paint);
  34         canvas->drawText(text, len, x, y, p);
  35         p.setFakeBoldText(true);
  36         canvas->drawText(text, len, x, y + SkIntToScalar(120), p);
  37     }
  38
  39     void onDraw(SkCanvas* canvas) SK_OVERRIDE {
  40         SkScalar x = SkIntToScalar(100);
  41         SkScalar y = SkIntToScalar(88);
  42
  43         SkPaint paint;
  44         paint.setAntiAlias(true);
  45         paint.setTextSize(SkIntToScalar(100));
  46         paint.setStrokeWidth(SkIntToScalar(5));
  47
  48         sk_tool_utils::set_portable_typeface(&paint, "Papyrus");
  49         show_bold(canvas, "Hello", 5, x, y, paint);
  50
  51         sk_tool_utils::set_portable_typeface(&paint, "Hiragino Maru Gothic Pro");
  52         const unsigned char hyphen[] = { 0xE3, 0x83, 0xBC };
  53         show_bold(canvas, hyphen, SK_ARRAY_COUNT(hyphen), x + SkIntToScalar(300), y, paint);
  54
  55         paint.setStyle(SkPaint::kStrokeAndFill_Style);
  56
  57         SkPath path;
  58         path.setFillType(SkPath::kWinding_FillType);
  59         path.addCircle(x, y + SkIntToScalar(200), SkIntToScalar(50), SkPath::kCW_Direction);
  60         path.addCircle(x, y + SkIntToScalar(200), SkIntToScalar(40), SkPath::kCCW_Direction);
  61         canvas->drawPath(path, paint);
  62
  63         SkPath path2;
  64         path2.setFillType(SkPath::kWinding_FillType);
  65         path2.addCircle(x + SkIntToScalar(120), y + SkIntToScalar(200), SkIntToScalar(50), SkPath::kCCW_Direction);
  66         path2.addCircle(x + SkIntToScalar(120), y + SkIntToScalar(200), SkIntToScalar(40), SkPath::kCW_Direction);
  67         canvas->drawPath(path2, paint);
  68
  69         path2.reset();
  70         path2.addCircle(x + SkIntToScalar(240), y + SkIntToScalar(200), SkIntToScalar(50), SkPath::kCCW_Direction);
  71         canvas->drawPath(path2, paint);
  72         SkASSERT(path2.cheapIsDirection(SkPath::kCCW_Direction));
  73
  74         path2.reset();
  75         SkASSERT(!path2.cheapComputeDirection(NULL));
  76         path2.addCircle(x + SkIntToScalar(360), y + SkIntToScalar(200), SkIntToScalar(50), SkPath::kCW_Direction);
  77         SkASSERT(path2.cheapIsDirection(SkPath::kCW_Direction));
  78         canvas->drawPath(path2, paint);
  79
  80         SkRect r = SkRect::MakeXYWH(x - SkIntToScalar(50), y + SkIntToScalar(280),
  81                                     SkIntToScalar(100), SkIntToScalar(100));
  82         SkPath path3;
  83         path3.setFillType(SkPath::kWinding_FillType);
  84         path3.addRect(r, SkPath::kCW_Direction);
  85         r.inset(SkIntToScalar(10), SkIntToScalar(10));
  86         path3.addRect(r, SkPath::kCCW_Direction);
  87         canvas->drawPath(path3, paint);
  88
  89         r = SkRect::MakeXYWH(x + SkIntToScalar(70), y + SkIntToScalar(280),
  90                              SkIntToScalar(100), SkIntToScalar(100));
  91         SkPath path4;
  92         path4.setFillType(SkPath::kWinding_FillType);
  93         path4.addRect(r, SkPath::kCCW_Direction);
  94         r.inset(SkIntToScalar(10), SkIntToScalar(10));
  95         path4.addRect(r, SkPath::kCW_Direction);
  96         canvas->drawPath(path4, paint);
  97
  98         r = SkRect::MakeXYWH(x + SkIntToScalar(190), y + SkIntToScalar(280),
  99                              SkIntToScalar(100), SkIntToScalar(100));
 100         path4.reset();
 101         SkASSERT(!path4.cheapComputeDirection(NULL));
 102         path4.addRect(r, SkPath::kCCW_Direction);
 103         SkASSERT(path4.cheapIsDirection(SkPath::kCCW_Direction));
 104         path4.moveTo(0, 0); // test for crbug.com/247770
 105         canvas->drawPath(path4, paint);
 106
 107         r = SkRect::MakeXYWH(x + SkIntToScalar(310), y + SkIntToScalar(280),
 108                              SkIntToScalar(100), SkIntToScalar(100));
 109         path4.reset();
 110         SkASSERT(!path4.cheapComputeDirection(NULL));
 111         path4.addRect(r, SkPath::kCW_Direction);
 112         SkASSERT(path4.cheapIsDirection(SkPath::kCW_Direction));
 113         path4.moveTo(0, 0); // test for crbug.com/247770
 114         canvas->drawPath(path4, paint);
 115     }
 116
 117 private:
 118     typedef GM INHERITED;
 119 };
 120
 121 //////////////////////////////////////////////////////////////////////////////
 122
 123 DEF_GM(return SkNEW(StrokeFillGM);)
 124
 125 }