mike@reedtribe.org | 3707164 | 2012-12-17 02:10:42 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 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 "SkRRect.h" |
| 11 | #include "SkPath.h" |
| 12 | |
mike@reedtribe.org | c3442d5 | 2012-12-17 02:34:28 +0000 | [diff] [blame^] | 13 | typedef void (*InsetProc)(const SkRRect&, SkScalar dx, SkScalar dy, SkRRect*); |
| 14 | |
| 15 | static void inset0(const SkRRect& src, SkScalar dx, SkScalar dy, SkRRect* dst) { |
| 16 | SkRect r = src.rect(); |
| 17 | |
| 18 | r.inset(dx, dy); |
| 19 | if (r.isEmpty()) { |
| 20 | dst->setEmpty(); |
| 21 | return; |
| 22 | } |
| 23 | |
| 24 | SkVector radii[4]; |
| 25 | for (int i = 0; i < 4; ++i) { |
| 26 | radii[i] = src.radii((SkRRect::Corner)i); |
| 27 | } |
| 28 | for (int i = 0; i < 4; ++i) { |
| 29 | radii[i].fX -= dx; |
| 30 | radii[i].fY -= dy; |
| 31 | } |
| 32 | dst->setRectRadii(r, radii); |
| 33 | } |
| 34 | |
| 35 | static void inset1(const SkRRect& src, SkScalar dx, SkScalar dy, SkRRect* dst) { |
| 36 | SkRect r = src.rect(); |
| 37 | |
| 38 | r.inset(dx, dy); |
| 39 | if (r.isEmpty()) { |
| 40 | dst->setEmpty(); |
| 41 | return; |
| 42 | } |
| 43 | |
| 44 | SkVector radii[4]; |
| 45 | for (int i = 0; i < 4; ++i) { |
| 46 | radii[i] = src.radii((SkRRect::Corner)i); |
| 47 | } |
| 48 | dst->setRectRadii(r, radii); |
| 49 | } |
| 50 | |
mike@reedtribe.org | 3707164 | 2012-12-17 02:10:42 +0000 | [diff] [blame] | 51 | static void draw_rrect_color(SkCanvas* canvas, const SkRRect& rrect) { |
| 52 | SkPaint paint; |
| 53 | paint.setAntiAlias(true); |
mike@reedtribe.org | c3442d5 | 2012-12-17 02:34:28 +0000 | [diff] [blame^] | 54 | paint.setStyle(SkPaint::kStroke_Style); |
| 55 | |
mike@reedtribe.org | 3707164 | 2012-12-17 02:10:42 +0000 | [diff] [blame] | 56 | if (rrect.isRect()) { |
| 57 | paint.setColor(SK_ColorRED); |
| 58 | } else if (rrect.isOval()) { |
mike@reedtribe.org | c3442d5 | 2012-12-17 02:34:28 +0000 | [diff] [blame^] | 59 | paint.setColor(0xFF008800); |
mike@reedtribe.org | 3707164 | 2012-12-17 02:10:42 +0000 | [diff] [blame] | 60 | } else if (rrect.isSimple()) { |
| 61 | paint.setColor(SK_ColorBLUE); |
| 62 | } else { |
mike@reedtribe.org | c3442d5 | 2012-12-17 02:34:28 +0000 | [diff] [blame^] | 63 | paint.setColor(SK_ColorBLACK); |
mike@reedtribe.org | 3707164 | 2012-12-17 02:10:42 +0000 | [diff] [blame] | 64 | } |
| 65 | canvas->drawRRect(rrect, paint); |
| 66 | } |
| 67 | |
mike@reedtribe.org | c3442d5 | 2012-12-17 02:34:28 +0000 | [diff] [blame^] | 68 | static void drawrr(SkCanvas* canvas, const SkRRect& rrect, InsetProc proc) { |
| 69 | SkRRect rr; |
| 70 | for (SkScalar d = -30; d <= 30; d += 10) { |
| 71 | proc(rrect, d, d, &rr); |
| 72 | draw_rrect_color(canvas, rr); |
| 73 | } |
mike@reedtribe.org | 3707164 | 2012-12-17 02:10:42 +0000 | [diff] [blame] | 74 | } |
| 75 | |
| 76 | class RRectGM : public skiagm::GM { |
| 77 | public: |
| 78 | RRectGM() {} |
| 79 | |
| 80 | protected: |
| 81 | virtual SkString onShortName() { |
| 82 | return SkString("rrect"); |
| 83 | } |
| 84 | |
| 85 | virtual SkISize onISize() { |
| 86 | return SkISize::Make(640, 480); |
| 87 | } |
| 88 | |
| 89 | virtual void onDraw(SkCanvas* canvas) { |
mike@reedtribe.org | c3442d5 | 2012-12-17 02:34:28 +0000 | [diff] [blame^] | 90 | static const InsetProc insetProcs[] = { inset0, inset1 }; |
| 91 | |
mike@reedtribe.org | 3707164 | 2012-12-17 02:10:42 +0000 | [diff] [blame] | 92 | SkRRect rrect[4]; |
mike@reedtribe.org | c3442d5 | 2012-12-17 02:34:28 +0000 | [diff] [blame^] | 93 | SkRect r = { 0, 0, 120, 160 }; |
mike@reedtribe.org | 3707164 | 2012-12-17 02:10:42 +0000 | [diff] [blame] | 94 | SkVector radii[4] = { |
| 95 | { 0, 0 }, { 20, 20 }, { 10, 40 }, { 40, 40 } |
| 96 | }; |
| 97 | |
| 98 | rrect[0].setRect(r); |
| 99 | rrect[1].setOval(r); |
| 100 | rrect[2].setRectXY(r, 20, 20); |
| 101 | rrect[3].setRectRadii(r, radii); |
| 102 | |
| 103 | canvas->translate(50, 50); |
mike@reedtribe.org | c3442d5 | 2012-12-17 02:34:28 +0000 | [diff] [blame^] | 104 | for (size_t j = 0; j < SK_ARRAY_COUNT(insetProcs); ++j) { |
| 105 | canvas->save(); |
| 106 | for (size_t i = 0; i < SK_ARRAY_COUNT(rrect); ++i) { |
| 107 | drawrr(canvas, rrect[i], insetProcs[j]); |
| 108 | canvas->translate(rrect[i].width() * 5 / 3, 0); |
| 109 | } |
| 110 | canvas->restore(); |
| 111 | canvas->translate(0, rrect[0].height() * 5 / 3); |
mike@reedtribe.org | 3707164 | 2012-12-17 02:10:42 +0000 | [diff] [blame] | 112 | } |
| 113 | } |
| 114 | |
| 115 | private: |
| 116 | typedef GM INHERITED; |
| 117 | }; |
| 118 | |
| 119 | DEF_GM( return new RRectGM; ) |
| 120 | |