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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 "SkStream.h" | |
11 #include "SkTypeface.h" | |
12 | |
13 namespace skiagm { | |
14 | |
15 class ColorEmojiGM : public GM { | |
16 public: | |
17 ColorEmojiGM() { | |
18 fTypeface = NULL; | |
djsollen
2013/09/16 17:14:14
need to fix spacing here and throughout the file.
| |
19 } | |
20 | |
21 ~ColorEmojiGM() { | |
22 SkSafeUnref(fTypeface); | |
23 } | |
24 protected: | |
25 virtual void onOnceBeforeDraw() SK_OVERRIDE { | |
26 | |
27 SkString filename(INHERITED::gResourcePath); | |
28 filename.append("/Funkster.ttf"); | |
29 | |
30 SkAutoTUnref<SkFILEStream> stream(new SkFILEStream(filename.c_str())); | |
31 if (!stream->isValid()) { | |
32 SkDebugf("Could not find Funkster.ttf, please set --resourcePath cor rectly.\n"); | |
33 return; | |
34 } | |
35 | |
36 fTypeface = SkTypeface::CreateFromStream(stream); | |
37 } | |
38 | |
39 virtual SkString onShortName() { | |
40 return SkString("coloremoji"); | |
41 } | |
42 | |
43 virtual SkISize onISize() { | |
44 return make_isize(640, 480); | |
45 } | |
46 | |
47 virtual void onDraw(SkCanvas* canvas) { | |
48 | |
49 canvas->drawColor(SK_ColorGRAY); | |
50 | |
51 SkPaint paint; | |
52 paint.setTypeface(fTypeface); | |
53 paint.setEmbeddedBitmapText(true); | |
54 | |
55 const char* text = "hamburgerfons"; | |
56 | |
57 // draw text at different point sizes | |
58 const int textSize[] = { 10, 30, 50 }; | |
59 const int textYOffset[] = { 10, 40, 100}; | |
60 SkASSERT(sizeof(textSize) == sizeof(textYOffset)); | |
61 for (size_t y = 0; y < sizeof(textSize) / sizeof(int); ++y) { | |
62 paint.setTextSize(textSize[y]); | |
63 canvas->drawText(text, strlen(text), 10, textYOffset[y], paint); | |
64 } | |
65 | |
66 // setup work needed to draw text with different clips | |
67 canvas->translate(10, 160); | |
68 paint.setTextSize(40); | |
69 | |
70 // compute the bounds of the text | |
71 SkRect bounds; | |
72 paint.measureText(text, strlen(text), &bounds); | |
73 | |
74 const SkScalar boundsHalfWidth = bounds.width() * SK_ScalarHalf; | |
75 const SkScalar boundsHalfHeight = bounds.height() * SK_ScalarHal f; | |
76 const SkScalar boundsQuarterWidth = boundsHalfWidth * SK_ScalarHalf; | |
77 const SkScalar boundsQuarterHeight = boundsHalfHeight * SK_ScalarHalf; | |
78 | |
79 SkRect upperLeftClip = SkRect::MakeXYWH(bounds.left(), bounds.to p(), | |
80 boundsHalfWidth, boundsH alfHeight); | |
81 SkRect lowerRightClip = SkRect::MakeXYWH(bounds.centerX(), bound s.centerY(), | |
82 boundsHalfWidth, bounds HalfHeight); | |
83 SkRect interiorClip = bounds; | |
84 interiorClip.inset(boundsQuarterWidth, boundsQuarterHeight); | |
85 | |
86 const SkRect clipRects[] = { bounds, upperLeftClip, lowerRightCl ip, interiorClip }; | |
87 | |
88 SkPaint clipHairline; | |
89 clipHairline.setColor(SK_ColorWHITE); | |
90 clipHairline.setStyle(SkPaint::kStroke_Style); | |
91 | |
92 for (size_t x = 0; x < sizeof(clipRects) / sizeof(SkRect); ++x) { | |
93 canvas->save(); | |
94 canvas->drawRect(clipRects[x], clipHairline); | |
95 paint.setAlpha(0x20); | |
96 canvas->drawText(text, strlen(text), 0, 0, paint); | |
97 canvas->clipRect(clipRects[x]); | |
98 paint.setAlpha(0xFF); | |
99 canvas->drawText(text, strlen(text), 0, 0, paint); | |
100 canvas->restore(); | |
101 canvas->translate(0, bounds.height() + SkIntToScalar(25) ); | |
102 } | |
103 } | |
104 | |
105 private: | |
106 SkTypeface* fTypeface; | |
107 | |
108 typedef GM INHERITED; | |
109 }; | |
110 | |
111 ////////////////////////////////////////////////////////////////////////////// | |
112 | |
113 static GM* MyFactory(void*) { return new ColorEmojiGM; } | |
114 static GMRegistry reg(MyFactory); | |
115 | |
116 } | |
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