1
2/*
3 * Copyright 2011 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8
9
10/* Tests text vertical text rendering with different fonts and centering.
11 */
12
13#include "gm.h"
14#include "SkCanvas.h"
15#include "SkTypeface.h"
16
17namespace skiagm {
18
19class VertText2GM : public GM {
20public:
21    VertText2GM() {
22        const int pointSize = 24;
23        textHeight = SkIntToScalar(pointSize);
24        prop = SkTypeface::CreateFromName("Helvetica", SkTypeface::kNormal);
25        mono = SkTypeface::CreateFromName("Courier New", SkTypeface::kNormal);
26    }
27
28protected:
29
30    SkString onShortName() {
31        return SkString("verttext2");
32    }
33
34    SkISize onISize() { return make_isize(640, 480); }
35
36    virtual void onDraw(SkCanvas* canvas) {
37
38        for (int i = 0; i < 3; ++i) {
39            SkPaint paint;
40            paint.setColor(SK_ColorRED);
41            paint.setAntiAlias(true);
42            y = textHeight;
43            canvas->drawLine(0, SkIntToScalar(10),
44                    SkIntToScalar(110), SkIntToScalar(10), paint);
45            canvas->drawLine(0, SkIntToScalar(240),
46                    SkIntToScalar(110), SkIntToScalar(240), paint);
47            canvas->drawLine(0, SkIntToScalar(470),
48                    SkIntToScalar(110), SkIntToScalar(470), paint);
49            drawText(canvas, SkString("Proportional / Top Aligned"),
50                     prop,  SkPaint::kLeft_Align);
51            drawText(canvas, SkString("<   Proportional / Centered   >"),
52                     prop,  SkPaint::kCenter_Align);
53            drawText(canvas, SkString("Monospaced / Top Aligned"),
54                     mono, SkPaint::kLeft_Align);
55            drawText(canvas, SkString("<    Monospaced / Centered    >"),
56                     mono, SkPaint::kCenter_Align);
57            canvas->rotate(SkIntToScalar(-15));
58            canvas->translate(textHeight * 4, SkIntToScalar(50));
59            if (i > 0) {
60                canvas->translate(0, SkIntToScalar(50));
61            }
62        }
63    }
64
65    void drawText(SkCanvas* canvas, const SkString& string,
66                  SkTypeface* family, SkPaint::Align alignment) {
67        SkPaint paint;
68        paint.setColor(SK_ColorBLACK);
69        paint.setAntiAlias(true);
70        paint.setVerticalText(true);
71        paint.setTextAlign(alignment);
72        paint.setTypeface(family);
73        paint.setTextSize(textHeight);
74
75        canvas->drawText(string.c_str(), string.size(), y,
76                alignment == SkPaint::kLeft_Align ? 10 : 240, paint);
77        y += textHeight;
78    }
79
80private:
81    typedef GM INHERITED;
82    SkScalar y, textHeight;
83    SkTypeface* prop;
84    SkTypeface* mono;
85};
86
87///////////////////////////////////////////////////////////////////////////////
88
89static GM* MyFactory(void*) { return new VertText2GM; }
90static GMRegistry reg(MyFactory);
91
92}
93