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        fProp = SkTypeface::CreateFromName("Helvetica", SkTypeface::kNormal);
25        fMono = SkTypeface::CreateFromName("Courier New", SkTypeface::kNormal);
26    }
27
28    virtual ~VertText2GM() {
29        SkSafeUnref(fProp);
30        SkSafeUnref(fMono);
31    }
32
33protected:
34
35    SkString onShortName() {
36        return SkString("verttext2");
37    }
38
39    SkISize onISize() { return make_isize(640, 480); }
40
41    virtual void onDraw(SkCanvas* canvas) {
42
43        for (int i = 0; i < 3; ++i) {
44            SkPaint paint;
45            paint.setColor(SK_ColorRED);
46            paint.setAntiAlias(true);
47            y = textHeight;
48            canvas->drawLine(0, SkIntToScalar(10),
49                    SkIntToScalar(110), SkIntToScalar(10), paint);
50            canvas->drawLine(0, SkIntToScalar(240),
51                    SkIntToScalar(110), SkIntToScalar(240), paint);
52            canvas->drawLine(0, SkIntToScalar(470),
53                    SkIntToScalar(110), SkIntToScalar(470), paint);
54            drawText(canvas, SkString("Proportional / Top Aligned"),
55                     fProp,  SkPaint::kLeft_Align);
56            drawText(canvas, SkString("<   Proportional / Centered   >"),
57                     fProp,  SkPaint::kCenter_Align);
58            drawText(canvas, SkString("Monospaced / Top Aligned"),
59                     fMono, SkPaint::kLeft_Align);
60            drawText(canvas, SkString("<    Monospaced / Centered    >"),
61                     fMono, SkPaint::kCenter_Align);
62            canvas->rotate(SkIntToScalar(-15));
63            canvas->translate(textHeight * 4, SkIntToScalar(50));
64            if (i > 0) {
65                canvas->translate(0, SkIntToScalar(50));
66            }
67        }
68    }
69
70    void drawText(SkCanvas* canvas, const SkString& string,
71                  SkTypeface* family, SkPaint::Align alignment) {
72        SkPaint paint;
73        paint.setColor(SK_ColorBLACK);
74        paint.setAntiAlias(true);
75        paint.setVerticalText(true);
76        paint.setTextAlign(alignment);
77        paint.setTypeface(family);
78        paint.setTextSize(textHeight);
79
80        canvas->drawText(string.c_str(), string.size(), y,
81                SkIntToScalar(alignment == SkPaint::kLeft_Align ? 10 : 240),
82                paint);
83        y += textHeight;
84    }
85
86private:
87    typedef GM INHERITED;
88    SkScalar y, textHeight;
89    SkTypeface* fProp;
90    SkTypeface* fMono;
91};
92
93///////////////////////////////////////////////////////////////////////////////
94
95static GM* MyFactory(void*) { return new VertText2GM; }
96static GMRegistry reg(MyFactory);
97
98}
99