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    virtual uint32_t onGetFlags() const SK_OVERRIDE {
35        return kSkipTiled_Flag;
36    }
37
38
39    SkString onShortName() {
40        return SkString("verttext2");
41    }
42
43    SkISize onISize() { return SkISize::Make(640, 480); }
44
45    virtual void onDraw(SkCanvas* canvas) {
46
47        for (int i = 0; i < 3; ++i) {
48            SkPaint paint;
49            paint.setColor(SK_ColorRED);
50            paint.setAntiAlias(true);
51            y = textHeight;
52            canvas->drawLine(0, SkIntToScalar(10),
53                    SkIntToScalar(110), SkIntToScalar(10), paint);
54            canvas->drawLine(0, SkIntToScalar(240),
55                    SkIntToScalar(110), SkIntToScalar(240), paint);
56            canvas->drawLine(0, SkIntToScalar(470),
57                    SkIntToScalar(110), SkIntToScalar(470), paint);
58            drawText(canvas, SkString("Proportional / Top Aligned"),
59                     fProp,  SkPaint::kLeft_Align);
60            drawText(canvas, SkString("<   Proportional / Centered   >"),
61                     fProp,  SkPaint::kCenter_Align);
62            drawText(canvas, SkString("Monospaced / Top Aligned"),
63                     fMono, SkPaint::kLeft_Align);
64            drawText(canvas, SkString("<    Monospaced / Centered    >"),
65                     fMono, SkPaint::kCenter_Align);
66            canvas->rotate(SkIntToScalar(-15));
67            canvas->translate(textHeight * 4, SkIntToScalar(50));
68            if (i > 0) {
69                canvas->translate(0, SkIntToScalar(50));
70            }
71        }
72    }
73
74    void drawText(SkCanvas* canvas, const SkString& string,
75                  SkTypeface* family, SkPaint::Align alignment) {
76        SkPaint paint;
77        paint.setColor(SK_ColorBLACK);
78        paint.setAntiAlias(true);
79        paint.setVerticalText(true);
80        paint.setTextAlign(alignment);
81        paint.setTypeface(family);
82        paint.setTextSize(textHeight);
83
84        canvas->drawText(string.c_str(), string.size(), y,
85                SkIntToScalar(alignment == SkPaint::kLeft_Align ? 10 : 240),
86                paint);
87        y += textHeight;
88    }
89
90private:
91    typedef GM INHERITED;
92    SkScalar y, textHeight;
93    SkTypeface* fProp;
94    SkTypeface* fMono;
95};
96
97///////////////////////////////////////////////////////////////////////////////
98
99static GM* MyFactory(void*) { return new VertText2GM; }
100static GMRegistry reg(MyFactory);
101
102}
103