bungeman@google.com | 0f0c288 | 2011-11-04 15:47:41 +0000 | [diff] [blame] | 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 "gm.h" |
| 8 | #include "SkTypeface.h" |
| 9 | |
| 10 | namespace skiagm { |
| 11 | |
| 12 | static const struct { |
| 13 | const char* fName; |
| 14 | SkTypeface::Style fStyle; |
| 15 | } gFaces[] = { |
| 16 | { NULL, SkTypeface::kNormal }, |
| 17 | { NULL, SkTypeface::kBold }, |
| 18 | { "serif", SkTypeface::kNormal }, |
| 19 | { "serif", SkTypeface::kBold }, |
| 20 | { "serif", SkTypeface::kItalic }, |
| 21 | { "serif", SkTypeface::kBoldItalic }, |
| 22 | { "monospace", SkTypeface::kNormal } |
| 23 | }; |
| 24 | |
| 25 | static const int gFaceCount = SK_ARRAY_COUNT(gFaces); |
| 26 | |
| 27 | class FontScalerGM : public GM { |
| 28 | public: |
| 29 | FontScalerGM() { |
| 30 | this->setBGColor(0xFFFFFFFF); |
| 31 | |
| 32 | for (int i = 0; i < gFaceCount; i++) { |
| 33 | fFaces[i] = SkTypeface::CreateFromName(gFaces[i].fName, |
| 34 | gFaces[i].fStyle); |
| 35 | } |
| 36 | } |
| 37 | |
| 38 | virtual ~FontScalerGM() { |
| 39 | for (int i = 0; i < gFaceCount; i++) { |
| 40 | SkSafeUnref(fFaces[i]); |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | protected: |
| 45 | virtual SkString onShortName() { |
| 46 | return SkString("fontscaler"); |
| 47 | } |
| 48 | |
| 49 | virtual SkISize onISize() { |
bungeman@google.com | 24babf4 | 2011-11-07 16:33:40 +0000 | [diff] [blame^] | 50 | return make_isize(1450, 750); |
bungeman@google.com | 0f0c288 | 2011-11-04 15:47:41 +0000 | [diff] [blame] | 51 | } |
| 52 | |
| 53 | static void rotate_about(SkCanvas* canvas, SkScalar degrees, SkScalar px, SkScalar py) { |
| 54 | canvas->translate(px, py); |
| 55 | canvas->rotate(degrees); |
| 56 | canvas->translate(-px, -py); |
| 57 | } |
| 58 | |
| 59 | virtual void onDraw(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, -1.53091184e+13f); |
| 67 | pts[2].set(-1.30077315e+16f, -2.77196141e+13f); |
| 68 | pts[3].set(-1.30077315e+16f, -2.77196162e+13f); |
| 69 | |
| 70 | SkPath path; |
| 71 | path.moveTo(pts[0]); |
| 72 | path.cubicTo(pts[1], pts[2], pts[3]); |
| 73 | canvas->drawPath(path, paint); |
| 74 | } |
| 75 | |
| 76 | paint.setAntiAlias(true); |
| 77 | paint.setLCDRenderText(true); |
| 78 | //With freetype the default (normal hinting) can be really ugly. |
| 79 | //Most distros now set slight (vertical hinting only) in any event. |
| 80 | paint.setHinting(SkPaint::kSlight_Hinting); |
| 81 | SkSafeUnref(paint.setTypeface(SkTypeface::CreateFromName("Times Roman", SkTypeface::kNormal))); |
| 82 | |
| 83 | // const char* text = "abcdefghijklmnopqrstuvwxyz"; |
| 84 | const char* text = "Hamburgefons ooo mmm"; |
| 85 | const size_t textLen = strlen(text); |
| 86 | |
| 87 | for (int j = 0; j < 2; ++j) { |
| 88 | for (int i = 0; i < 6; ++i) { |
| 89 | SkScalar x = SkIntToScalar(10); |
| 90 | SkScalar y = SkIntToScalar(20); |
| 91 | |
| 92 | SkAutoCanvasRestore acr(canvas, true); |
| 93 | canvas->translate(SkIntToScalar(50 + i * 230), |
| 94 | SkIntToScalar(20)); |
| 95 | rotate_about(canvas, SkIntToScalar(i * 5), x, y * 10); |
| 96 | |
| 97 | { |
| 98 | SkPaint p; |
| 99 | p.setAntiAlias(true); |
| 100 | SkRect r; |
| 101 | r.set(x-3, 15, x-1, 280); |
| 102 | canvas->drawRect(r, p); |
| 103 | } |
| 104 | |
| 105 | int index = 0; |
| 106 | for (int ps = 6; ps <= 22; ps++) { |
| 107 | paint.setTextSize(SkIntToScalar(ps)); |
| 108 | canvas->drawText(text, textLen, x, y, paint); |
| 109 | y += paint.getFontMetrics(NULL); |
| 110 | index += 1; |
| 111 | } |
| 112 | } |
| 113 | canvas->translate(0, 360); |
| 114 | paint.setSubpixelText(true); |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | private: |
| 119 | SkTypeface* fFaces[gFaceCount]; |
| 120 | typedef GM INHERITED; |
| 121 | }; |
| 122 | |
| 123 | ////////////////////////////////////////////////////////////////////////////// |
| 124 | |
| 125 | static GM* MyFactory(void*) { return new FontScalerGM; } |
| 126 | static GMRegistry reg(MyFactory); |
| 127 | |
| 128 | } |
| 129 | |