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
13namespace skiagm {
14
15#define TEXT_SIZE   48
16static const char gText[] = "Hello";
17
18//Before shaping
19//static const char gText[] = "「テスト。」";
20//static const 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//static const char gText[] = "﹁テスト︒﹂";
24//static const char gText[] = {0xEF,0xB9,0x81, 0xE3,0x83,0x86, 0xE3,0x82,0xB9, 0xE3,0x83,0x88, 0xEF,0xB8,0x92, 0xEF,0xB9,0x82, 0x0};
25
26static const size_t gLen = sizeof(gText) - sizeof(gText[0]);
27
28class VertTextGM : public GM {
29public:
30    VertTextGM()
31        // : fFace(SkTypeface::CreateFromName("unifont", SkTypeface::kNormal))
32        // : fFace(SkTypeface::CreateFromFile("MotoyaL04Mincho_3.ttf"))
33
34        // Bitmap fonts on OS X.
35        // : fFace(SkTypeface::CreateFromName("GB18030 Bitmap", SkTypeface::kNormal))
36        // : fFace(SkTypeface::CreateFromName("Apple Color Emoji", SkTypeface::kNormal))
37
38        // OTF CFF fonts on OS X.
39        // : fFace(SkTypeface::CreateFromName("Hiragino Mincho ProN", SkTypeface::kNormal))
40        // : fFace(SkTypeface::CreateFromName("Hiragino Kaku Gothic Pro", SkTypeface::kNormal))
41        // : fFace(SkTypeface::CreateFromName("Hiragino Sans GB", SkTypeface::kNormal))
42        // : fFace(SkTypeface::CreateFromName("STIXGeneral", SkTypeface::kNormal))
43        // : fFace(SkTypeface::CreateFromName("Yuppy SC", SkTypeface::kNormal))
44        // : fFace(SkTypeface::CreateFromName("Yuppy TC", SkTypeface::kNormal))
45
46    {
47    }
48
49    //SkAutoTUnref<SkTypeface> fFace;
50
51protected:
52    virtual uint32_t onGetFlags() const SK_OVERRIDE {
53        return kSkipTiled_Flag;
54    }
55
56    SkString onShortName() {
57        return SkString("verttext");
58    }
59
60    SkISize onISize() { return SkISize::Make(640, 480); }
61
62    static void drawBaseline(SkCanvas* canvas, const SkPaint& paint,
63                             SkScalar x, SkScalar y) {
64        SkScalar total = paint.measureText(gText, gLen);
65
66        SkPaint p;
67        p.setAntiAlias(true);
68        p.setColor(0x80FF0000);
69        canvas->drawLine(x, y,
70                         paint.isVerticalText() ? x : x + total,
71                         paint.isVerticalText() ? y + total : y,
72                         p);
73
74        p.setColor(0xFF0000FF);
75        SkScalar adv[gLen];
76        int numChars = paint.getTextWidths(gText, gLen, adv, NULL);
77        for (int i = 0; i < numChars; ++i) {
78            canvas->drawCircle(x, y, SK_Scalar1 * 3 / 2, p);
79            if (paint.isVerticalText()) {
80                y += adv[i];
81            } else {
82                x += adv[i];
83            }
84        }
85        canvas->drawCircle(x, y, SK_Scalar1 * 3 / 2, p);
86    }
87
88    virtual void onDraw(SkCanvas* canvas) {
89        SkScalar x = SkIntToScalar(100);
90        SkScalar y = SkIntToScalar(50);
91
92        for (int i = 0; i < 4; ++i) {
93            SkPaint paint;
94            paint.setAntiAlias(true);
95            paint.setTextSize(SkIntToScalar(TEXT_SIZE));
96            //paint.setTypeface(fFace);
97            //paint.setFakeBoldText(true);
98
99            paint.setVerticalText(false);
100            drawBaseline(canvas, paint, x, y);
101            canvas->drawText(gText, gLen, x, y, paint);
102
103            paint.setVerticalText(true);
104            drawBaseline(canvas, paint, x, y);
105            canvas->drawText(gText, gLen, x, y, paint);
106
107            x += SkIntToScalar(40);
108            y += SkIntToScalar(120);
109
110            canvas->rotate(SkIntToScalar(-15));
111        }
112    }
113
114private:
115    typedef GM INHERITED;
116};
117
118///////////////////////////////////////////////////////////////////////////////
119
120static GM* MyFactory(void*) { return new VertTextGM; }
121static GMRegistry reg(MyFactory);
122
123}
124