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
9 #include "gm.h"
10 #include "SkCanvas.h"
11 #include "SkTypeface.h"
12
13 namespace skiagm {
14
15 #define TEXT_SIZE 48
16 constexpr char gText[] = "Hello";
17
18 //Before shaping
19 //constexpr char gText[] = "「テスト。」";
20 //constexpr char gText[] = {0xE3,0x80,0x8C, 0xE3,0x83,0x86, 0xE3,0x82,0xB9, 0xE3,0x83,0x88, 0xE3,0x80,0x82, 0xE3,0x80,0x8D, 0x0};
21
22 //After shaping
23 //constexpr char gText[] = "﹁テスト︒﹂";
24 //constexpr char gText[] = {0xEF,0xB9,0x81, 0xE3,0x83,0x86, 0xE3,0x82,0xB9, 0xE3,0x83,0x88, 0xEF,0xB8,0x92, 0xEF,0xB9,0x82, 0x0};
25
26 constexpr size_t gLen = sizeof(gText) - sizeof(gText[0]);
27
28 class VertTextGM : public GM {
29 public:
VertTextGM()30 VertTextGM()
31 // : fFace(SkTypeface::MakeFromName("unifont", SkFontStyle::Normal()))
32 // : fFace(SkTypeface::MakeFromFile("MotoyaL04Mincho_3.ttf"))
33
34 // Bitmap fonts on OS X.
35 // : fFace(SkTypeface::MakeFromName("GB18030 Bitmap", SkFontStyle::Normal()))
36 // : fFace(SkTypeface::MakeFromName("Apple Color Emoji", SkFontStyle::Normal()))
37
38 // OTF CFF fonts on OS X.
39 // : fFace(SkTypeface::MakeFromName("Hiragino Mincho ProN", SkFontStyle::Normal()))
40 // : fFace(SkTypeface::MakeFromName("Hiragino Kaku Gothic Pro", SkFontStyle::Normal()))
41 // : fFace(SkTypeface::MakeFromName("Hiragino Sans GB", SkFontStyle::Normal()))
42 // : fFace(SkTypeface::MakeFromName("STIXGeneral", SkFontStyle::Normal()))
43 // : fFace(SkTypeface::MakeFromName("Yuppy SC", SkFontStyle::Normal()))
44 // : fFace(SkTypeface::MakeFromName("Yuppy TC", SkFontStyle::Normal()))
45
46 {
47 }
48
49 //sk_sp<SkTypeface> fFace;
50
51 protected:
52
onShortName()53 SkString onShortName() override {
54 return SkString("verttext");
55 }
56
onISize()57 SkISize onISize() override { return SkISize::Make(640, 480); }
58
drawBaseline(SkCanvas * canvas,const SkPaint & paint,SkScalar x,SkScalar y)59 static void drawBaseline(SkCanvas* canvas, const SkPaint& paint,
60 SkScalar x, SkScalar y) {
61 SkScalar total = paint.measureText(gText, gLen);
62
63 SkPaint p;
64 p.setAntiAlias(true);
65 p.setColor(0x80FF0000);
66 canvas->drawLine(x, y,
67 paint.isVerticalText() ? x : x + total,
68 paint.isVerticalText() ? y + total : y,
69 p);
70
71 p.setColor(0xFF0000FF);
72 SkScalar adv[gLen];
73 int numChars = paint.getTextWidths(gText, gLen, adv, nullptr);
74 for (int i = 0; i < numChars; ++i) {
75 canvas->drawCircle(x, y, SK_Scalar1 * 3 / 2, p);
76 if (paint.isVerticalText()) {
77 y += adv[i];
78 } else {
79 x += adv[i];
80 }
81 }
82 canvas->drawCircle(x, y, SK_Scalar1 * 3 / 2, p);
83 }
84
onDraw(SkCanvas * canvas)85 void onDraw(SkCanvas* canvas) override {
86 SkScalar x = SkIntToScalar(100);
87 SkScalar y = SkIntToScalar(50);
88
89 for (int i = 0; i < 4; ++i) {
90 SkPaint paint;
91 paint.setAntiAlias(true);
92 paint.setTextSize(SkIntToScalar(TEXT_SIZE));
93 //paint.setTypeface(fFace);
94 //paint.setFakeBoldText(true);
95
96 paint.setVerticalText(false);
97 drawBaseline(canvas, paint, x, y);
98 canvas->drawText(gText, gLen, x, y, paint);
99
100 paint.setVerticalText(true);
101 drawBaseline(canvas, paint, x, y);
102 canvas->drawText(gText, gLen, x, y, paint);
103
104 x += SkIntToScalar(40);
105 y += SkIntToScalar(120);
106
107 canvas->rotate(SkIntToScalar(-15));
108 }
109 }
110
111 private:
112 typedef GM INHERITED;
113 };
114
115 ///////////////////////////////////////////////////////////////////////////////
116
MyFactory(void *)117 static GM* MyFactory(void*) { return new VertTextGM; }
118 static GMRegistry reg(MyFactory);
119
120 }
121