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 "SkTypeface.h"
9
10 namespace skiagm {
11
12 class DevicePropertiesGM : public GM {
13 public:
DevicePropertiesGM()14 DevicePropertiesGM() {
15 this->setBGColor(0xFFFFFFFF);
16 }
17
~DevicePropertiesGM()18 virtual ~DevicePropertiesGM() {
19 }
20
21 protected:
onShortName()22 virtual SkString onShortName() {
23 return SkString("deviceproperties");
24 }
25
onISize()26 virtual SkISize onISize() {
27 return make_isize(1450, 750);
28 }
29
rotate_about(SkCanvas * canvas,SkScalar degrees,SkScalar px,SkScalar py)30 static void rotate_about(SkCanvas* canvas,
31 SkScalar degrees,
32 SkScalar px, SkScalar py) {
33 canvas->translate(px, py);
34 canvas->rotate(degrees);
35 canvas->translate(-px, -py);
36 }
37
onDraw(SkCanvas * originalCanvas)38 virtual void onDraw(SkCanvas* originalCanvas) {
39 SkISize size = this->getISize();
40 SkBitmap bitmap;
41 bitmap.setConfig(SkBitmap::kARGB_8888_Config, size.width(), size.height());
42 bitmap.allocPixels();
43 SkDeviceProperties properties = SkDeviceProperties::Make(
44 SkDeviceProperties::Geometry::Make(SkDeviceProperties::Geometry::kVertical_Orientation,
45 SkDeviceProperties::Geometry::kBGR_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 SkSafeUnref(paint.setTypeface(SkTypeface::CreateFromName("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
onGetFlags() const97 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
MyFactory(void *)110 static GM* MyFactory(void*) { return new DevicePropertiesGM; }
111 static GMRegistry reg(MyFactory);
112
113 }
114