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 8 #include "gm/gm.h" 9 #include "include/core/SkCanvas.h" 10 #include "include/core/SkFont.h" 11 #include "include/core/SkFontTypes.h" 12 #include "include/core/SkPaint.h" 13 #include "include/core/SkRect.h" 14 #include "include/core/SkScalar.h" 15 #include "include/core/SkSize.h" 16 #include "include/core/SkString.h" 17 #include "tools/fonts/FontToolUtils.h" 18 19 #include <string.h> 20 21 namespace skiagm { 22 23 class FontScalerGM : public GM { 24 public: FontScalerGM()25 FontScalerGM() { 26 this->setBGColor(0xFFFFFFFF); 27 } 28 29 protected: getName() const30 SkString getName() const override { return SkString("fontscaler"); } 31 getISize()32 SkISize getISize() override { return SkISize::Make(1450, 750); } 33 onDraw(SkCanvas * canvas)34 void onDraw(SkCanvas* canvas) override { 35 SkFont font = ToolUtils::DefaultPortableFont(); 36 font.setEdging(SkFont::Edging::kSubpixelAntiAlias); 37 //With freetype the default (normal hinting) can be really ugly. 38 //Most distros now set slight (vertical hinting only) in any event. 39 font.setHinting(SkFontHinting::kSlight); 40 41 const char* text = "Hamburgefons ooo mmm"; 42 const size_t textLen = strlen(text); 43 44 for (int j = 0; j < 2; ++j) { 45 // This used to do 6 iterations but it causes the N4 to crash in the MSAA4 config. 46 for (int i = 0; i < 5; ++i) { 47 SkScalar x = 10; 48 SkScalar y = 20; 49 50 SkAutoCanvasRestore acr(canvas, true); 51 canvas->translate(SkIntToScalar(50 + i * 230), 52 SkIntToScalar(20)); 53 canvas->rotate(SkIntToScalar(i * 5), x, y * 10); 54 55 { 56 SkPaint p; 57 p.setAntiAlias(true); 58 SkRect r; 59 r.setLTRB(x - 3, 15, x - 1, 280); 60 canvas->drawRect(r, p); 61 } 62 63 for (int ps = 6; ps <= 22; ps++) { 64 font.setSize(SkIntToScalar(ps)); 65 canvas->drawSimpleText(text, textLen, SkTextEncoding::kUTF8, x, y, font, SkPaint()); 66 y += font.getMetrics(nullptr); 67 } 68 } 69 canvas->translate(0, SkIntToScalar(360)); 70 font.setSubpixel(true); 71 font.setLinearMetrics(true); 72 font.setBaselineSnap(false); 73 } 74 } 75 76 private: 77 using INHERITED = GM; 78 }; 79 80 ////////////////////////////////////////////////////////////////////////////// 81 82 DEF_GM( return new FontScalerGM; ) 83 84 } // namespace skiagm 85