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 #include "SampleCode.h"
8 #include "SkView.h"
9 #include "SkCanvas.h"
10 #include "SkTypeface.h"
11 #include "SkPath.h"
12 #include "SkRegion.h"
13 #include "SkShader.h"
14 #include "SkUtils.h"
15 #include "Sk1DPathEffect.h"
16 #include "SkCornerPathEffect.h"
17 #include "SkPathMeasure.h"
18 #include "SkRandom.h"
19 #include "SkColorPriv.h"
20 #include "SkColorFilter.h"
21 #include "SkDither.h"
22
23 static const struct {
24 const char* fName;
25 SkTypeface::Style fStyle;
26 } gFaces[] = {
27 { nullptr, SkTypeface::kNormal },
28 { nullptr, SkTypeface::kBold },
29 { "serif", SkTypeface::kNormal },
30 { "serif", SkTypeface::kBold },
31 { "serif", SkTypeface::kItalic },
32 { "serif", SkTypeface::kBoldItalic },
33 { "monospace", SkTypeface::kNormal }
34 };
35
36 static const int gFaceCount = SK_ARRAY_COUNT(gFaces);
37
38 class FontScalerTestView : public SampleView {
39 sk_sp<SkTypeface> fFaces[gFaceCount];
40
41 public:
FontScalerTestView()42 FontScalerTestView() {
43 for (int i = 0; i < gFaceCount; i++) {
44 fFaces[i] = SkTypeface::MakeFromName(
45 gFaces[i].fName, SkFontStyle::FromOldStyle(gFaces[i].fStyle));
46 }
47 }
48
49 protected:
50 // overrides from SkEventSink
onQuery(SkEvent * evt)51 virtual bool onQuery(SkEvent* evt) {
52 if (SampleCode::TitleQ(*evt)) {
53 SampleCode::TitleR(evt, "FontScaler Test");
54 return true;
55 }
56 return this->INHERITED::onQuery(evt);
57 }
58
onDrawContent(SkCanvas * canvas)59 virtual void onDrawContent(SkCanvas* canvas) {
60 SkPaint paint;
61
62 // test handling of obscene cubic values (currently broken)
63 if (false) {
64 SkPoint pts[4];
65 pts[0].set(1.61061274e+09f, 6291456);
66 pts[1].set(-7.18397061e+15f,
67 -1.53091184e+13f);
68 pts[2].set(-1.30077315e+16f,
69 -2.77196141e+13f);
70 pts[3].set(-1.30077315e+16f,
71 -2.77196162e+13f);
72
73 SkPath path;
74 path.moveTo(pts[0]);
75 path.cubicTo(pts[1], pts[2], pts[3]);
76 canvas->drawPath(path, paint);
77 }
78
79 // paint.setSubpixelText(true);
80 paint.setAntiAlias(true);
81 paint.setLCDRenderText(true);
82 paint.setTypeface(SkTypeface::MakeFromName("Times Roman", SkFontStyle()));
83
84 // const char* text = "abcdefghijklmnopqrstuvwxyz";
85 const char* text = "Hamburgefons ooo mmm";
86 const size_t textLen = strlen(text);
87
88 for (int j = 0; j < 2; ++j) {
89 for (int i = 0; i < 6; ++i) {
90 SkScalar x = SkIntToScalar(10);
91 SkScalar y = SkIntToScalar(20);
92
93 SkAutoCanvasRestore acr(canvas, true);
94 canvas->translate(SkIntToScalar(50 + i * 230),
95 SkIntToScalar(20));
96 canvas->rotate(SkIntToScalar(i * 5), x, y * 10);
97
98 {
99 SkPaint p;
100 p.setAntiAlias(true);
101 SkRect r;
102 r.set(x-3, 15, x-1, 280);
103 canvas->drawRect(r, p);
104 }
105
106 int index = 0;
107 for (int ps = 6; ps <= 22; ps++) {
108 paint.setTextSize(SkIntToScalar(ps));
109 canvas->drawText(text, textLen, x, y, paint);
110 y += paint.getFontMetrics(nullptr);
111 index += 1;
112 }
113 }
114 canvas->translate(0, 400);
115 paint.setSubpixelText(true);
116 }
117 }
118
119 private:
120 typedef SkView INHERITED;
121 };
122
123 //////////////////////////////////////////////////////////////////////////////
124
MyFactory()125 static SkView* MyFactory() { return new FontScalerTestView; }
126 static SkViewRegister reg(MyFactory);
127