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        : fProp(nullptr)
23        , fMono(nullptr) {
24    }
25
26    virtual ~VertText2GM() {
27        SkSafeUnref(fProp);
28        SkSafeUnref(fMono);
29    }
30
31protected:
32    void onOnceBeforeDraw() override {
33        const int pointSize = 24;
34        textHeight = SkIntToScalar(pointSize);
35        fProp = SkTypeface::CreateFromName(sk_tool_utils::platform_font_name("sans-serif"),
36                SkTypeface::kNormal);
37        fMono = SkTypeface::CreateFromName(sk_tool_utils::platform_font_name("monospace"),
38                SkTypeface::kNormal);
39    }
40
41    SkString onShortName() override {
42        SkString name("verttext2");
43        name.append(sk_tool_utils::major_platform_os_name());
44        return name;
45    }
46
47    SkISize onISize() override { return SkISize::Make(640, 480); }
48
49    void onDraw(SkCanvas* canvas) override {
50        for (int i = 0; i < 3; ++i) {
51            SkPaint paint;
52            paint.setColor(SK_ColorRED);
53            paint.setAntiAlias(true);
54            y = textHeight;
55            canvas->drawLine(0, SkIntToScalar(10),
56                    SkIntToScalar(110), SkIntToScalar(10), paint);
57            canvas->drawLine(0, SkIntToScalar(240),
58                    SkIntToScalar(110), SkIntToScalar(240), paint);
59            canvas->drawLine(0, SkIntToScalar(470),
60                    SkIntToScalar(110), SkIntToScalar(470), paint);
61            drawText(canvas, SkString("Proportional / Top Aligned"),
62                     fProp,  SkPaint::kLeft_Align);
63            drawText(canvas, SkString("<   Proportional / Centered   >"),
64                     fProp,  SkPaint::kCenter_Align);
65            drawText(canvas, SkString("Monospaced / Top Aligned"),
66                     fMono, SkPaint::kLeft_Align);
67            drawText(canvas, SkString("<    Monospaced / Centered    >"),
68                     fMono, SkPaint::kCenter_Align);
69            canvas->rotate(SkIntToScalar(-15));
70            canvas->translate(textHeight * 4, SkIntToScalar(50));
71            if (i > 0) {
72                canvas->translate(0, SkIntToScalar(50));
73            }
74        }
75    }
76
77    void drawText(SkCanvas* canvas, const SkString& string,
78                  SkTypeface* family, SkPaint::Align alignment) {
79        SkPaint paint;
80        paint.setColor(SK_ColorBLACK);
81        paint.setAntiAlias(true);
82        paint.setVerticalText(true);
83        paint.setTextAlign(alignment);
84        paint.setTypeface(family);
85        paint.setTextSize(textHeight);
86
87        canvas->drawText(string.c_str(), string.size(), y,
88                SkIntToScalar(alignment == SkPaint::kLeft_Align ? 10 : 240),
89                paint);
90        y += textHeight;
91    }
92
93private:
94    typedef GM INHERITED;
95    SkScalar y, textHeight;
96    SkTypeface* fProp;
97    SkTypeface* fMono;
98};
99
100///////////////////////////////////////////////////////////////////////////////
101
102static GM* MyFactory(void*) { return new VertText2GM; }
103static GMRegistry reg(MyFactory);
104
105}
106