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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 #include "gm.h" | |
8 #include "SkBitmapDevice.h" | |
9 #include "SkTypeface.h" | |
10 | |
11 namespace skiagm { | |
12 | |
13 class DevicePropertiesGM : public GM { | |
14 public: | |
15 DevicePropertiesGM() { | |
16 this->setBGColor(0xFFFFFFFF); | |
17 } | |
18 | |
19 virtual ~DevicePropertiesGM() { | |
20 } | |
21 | |
22 protected: | |
23 virtual SkString onShortName() { | |
24 return SkString("deviceproperties"); | |
25 } | |
26 | |
27 virtual SkISize onISize() { | |
28 return SkISize::Make(1450, 750); | |
29 } | |
30 | |
31 static void rotate_about(SkCanvas* canvas, | |
32 SkScalar degrees, | |
33 SkScalar px, SkScalar py) { | |
34 canvas->translate(px, py); | |
35 canvas->rotate(degrees); | |
36 canvas->translate(-px, -py); | |
37 } | |
38 | |
39 virtual void onDraw(SkCanvas* originalCanvas) { | |
40 SkISize size = this->getISize(); | |
41 SkBitmap bitmap; | |
42 bitmap.allocN32Pixels(size.width(), size.height()); | |
43 SkDeviceProperties properties = SkDeviceProperties::Make( | |
44 SkDeviceProperties::Geometry::Make(SkDeviceProperties::Geometry::kVe
rtical_Orientation, | |
45 SkDeviceProperties::Geometry::kBG
R_Layout), | |
46 SK_Scalar1); | |
47 SkBitmapDevice device(bitmap, properties); | |
48 SkCanvas canvas(&device); | |
49 canvas.drawColor(SK_ColorWHITE); | |
50 | |
51 SkPaint paint; | |
52 | |
53 paint.setAntiAlias(true); | |
54 paint.setLCDRenderText(true); | |
55 //With freetype the default (normal hinting) can be really ugly. | |
56 //Most distros now set slight (vertical hinting only) in any event. | |
57 paint.setHinting(SkPaint::kSlight_Hinting); | |
58 sk_tool_utils::set_portable_typeface(&paint, "Times Roman", SkTypeface::
kNormal); | |
59 | |
60 const char* text = "Hamburgefons ooo mmm"; | |
61 const size_t textLen = strlen(text); | |
62 | |
63 for (int j = 0; j < 2; ++j) { | |
64 for (int i = 0; i < 6; ++i) { | |
65 SkScalar x = SkIntToScalar(10); | |
66 SkScalar y = SkIntToScalar(20); | |
67 | |
68 SkAutoCanvasRestore acr(&canvas, true); | |
69 canvas.translate(SkIntToScalar(50 + i * 230), | |
70 SkIntToScalar(20)); | |
71 rotate_about(&canvas, SkIntToScalar(i * 5), x, y * 10); | |
72 | |
73 { | |
74 SkPaint p; | |
75 p.setAntiAlias(true); | |
76 SkRect r; | |
77 r.set(x - SkIntToScalar(3), SkIntToScalar(15), | |
78 x - SkIntToScalar(1), SkIntToScalar(280)); | |
79 canvas.drawRect(r, p); | |
80 } | |
81 | |
82 int index = 0; | |
83 for (int ps = 6; ps <= 22; ps++) { | |
84 paint.setTextSize(SkIntToScalar(ps)); | |
85 canvas.drawText(text, textLen, x, y, paint); | |
86 y += paint.getFontMetrics(NULL); | |
87 index += 1; | |
88 } | |
89 } | |
90 canvas.translate(0, SkIntToScalar(360)); | |
91 paint.setSubpixelText(true); | |
92 } | |
93 originalCanvas->drawBitmap(bitmap, 0, 0); | |
94 } | |
95 | |
96 #ifdef SK_BUILD_FOR_ANDROID | |
97 virtual uint32_t onGetFlags() const SK_OVERRIDE { | |
98 // On android, we fail due to bad gpu drivers (it seems) by adding too | |
99 // much to our text atlas (texture). | |
100 return kSkipGPU_Flag; | |
101 } | |
102 #endif | |
103 | |
104 private: | |
105 typedef GM INHERITED; | |
106 }; | |
107 | |
108 ////////////////////////////////////////////////////////////////////////////// | |
109 | |
110 static GM* MyFactory(void*) { return new DevicePropertiesGM; } | |
111 static GMRegistry reg(MyFactory); | |
112 | |
113 } | |
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