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Side by Side Diff: gm/fontscalerdistortable.cpp

Issue 1139123008: Revert of Font variations. (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 5 years, 7 months ago
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1 /*
2 * Copyright 2015 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 "gm.h"
8 #include "Resources.h"
9 #include "SkFixed.h"
10 #include "SkFontDescriptor.h"
11 #include "SkFontMgr.h"
12 #include "SkTypeface.h"
13
14 namespace skiagm {
15
16 class FontScalerDistortableGM : public GM {
17 public:
18 FontScalerDistortableGM() {
19 this->setBGColor(0xFFFFFFFF);
20 }
21
22 virtual ~FontScalerDistortableGM() { }
23
24 protected:
25
26 SkString onShortName() override {
27 return SkString("fontscalerdistortable");
28 }
29
30 SkISize onISize() override {
31 return SkISize::Make(550, 700);
32 }
33
34 static void rotate_about(SkCanvas* canvas, SkScalar degrees, SkScalar px, Sk Scalar py) {
35 canvas->translate(px, py);
36 canvas->rotate(degrees);
37 canvas->translate(-px, -py);
38 }
39
40 void onDraw(SkCanvas* canvas) override {
41 SkPaint paint;
42 paint.setAntiAlias(true);
43 paint.setLCDRenderText(true);
44
45 SkAutoTDelete<SkStreamAsset> distortable(GetResourceAsStream("/fonts/Dis tortable.ttf"));
46 if (!distortable) {
47 return;
48 }
49 const char* text = "abc";
50 const size_t textLen = strlen(text);
51
52 for (int j = 0; j < 2; ++j) {
53 for (int i = 0; i < 5; ++i) {
54 SkScalar x = SkIntToScalar(10);
55 SkScalar y = SkIntToScalar(20);
56
57 SkFixed axis = SkDoubleToFixed(0.5 + (5*j + i) * ((2.0 - 0.5) / (2 * 5)));
58 SkAutoTUnref<SkTypeface> typeface(SkTypeface::CreateFromFontData (
59 new SkFontData(distortable->duplicate(), 0, &axis, 1)));
60 paint.setTypeface(typeface);
61
62 SkAutoCanvasRestore acr(canvas, true);
63 canvas->translate(SkIntToScalar(30 + i * 100), SkIntToScalar(20) );
64 rotate_about(canvas, SkIntToScalar(i * 5), x, y * 10);
65
66 {
67 SkPaint p;
68 p.setAntiAlias(true);
69 SkRect r;
70 r.set(x - SkIntToScalar(3), SkIntToScalar(15),
71 x - SkIntToScalar(1), SkIntToScalar(280));
72 canvas->drawRect(r, p);
73 }
74
75 for (int ps = 6; ps <= 22; ps++) {
76 paint.setTextSize(SkIntToScalar(ps));
77 canvas->drawText(text, textLen, x, y, paint);
78 y += paint.getFontMetrics(NULL);
79 }
80 }
81 canvas->translate(0, SkIntToScalar(360));
82 paint.setSubpixelText(true);
83 }
84 }
85
86 private:
87 typedef GM INHERITED;
88 };
89
90 //////////////////////////////////////////////////////////////////////////////
91
92 static GM* MyFactory(void*) { return new FontScalerDistortableGM; }
93 static GMRegistry reg(MyFactory);
94
95 }
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