1 /* 2 * Copyright 2012 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.h" 9 #include "SkCanvas.h" 10 #include "SkPaint.h" 11 #include "SkRandom.h" 12 #include "SkTemplates.h" 13 14 class GetPosTextPathGM : public skiagm::GM { 15 public: 16 GetPosTextPathGM() {} 17 18 protected: 19 virtual uint32_t onGetFlags() const SK_OVERRIDE { 20 return kSkipTiled_Flag; 21 } 22 23 SkString onShortName() { 24 return SkString("getpostextpath"); 25 } 26 27 SkISize onISize() { return SkISize::Make(480, 780); } 28 29 static void strokePath(SkCanvas* canvas, const SkPath& path) { 30 SkPaint paint; 31 paint.setAntiAlias(true); 32 paint.setColor(SK_ColorRED); 33 paint.setStyle(SkPaint::kStroke_Style); 34 canvas->drawPath(path, paint); 35 } 36 37 virtual void onDraw(SkCanvas* canvas) { 38 // explicitly add spaces, to test a prev. bug 39 const char* text = "Ham bur ge fons"; 40 int len = SkToInt(strlen(text)); 41 SkPath path; 42 43 SkPaint paint; 44 paint.setAntiAlias(true); 45 sk_tool_utils::set_portable_typeface(&paint); 46 paint.setTextSize(SkIntToScalar(48)); 47 48 canvas->translate(SkIntToScalar(10), SkIntToScalar(64)); 49 50 canvas->drawText(text, len, 0, 0, paint); 51 paint.getTextPath(text, len, 0, 0, &path); 52 strokePath(canvas, path); 53 path.reset(); 54 55 SkAutoTArray<SkPoint> pos(len); 56 SkAutoTArray<SkScalar> widths(len); 57 paint.getTextWidths(text, len, &widths[0]); 58 59 SkLCGRandom rand; 60 SkScalar x = SkIntToScalar(20); 61 SkScalar y = SkIntToScalar(100); 62 for (int i = 0; i < len; ++i) { 63 pos[i].set(x, y + rand.nextSScalar1() * 24); 64 x += widths[i]; 65 } 66 67 canvas->translate(0, SkIntToScalar(64)); 68 69 canvas->drawPosText(text, len, &pos[0], paint); 70 paint.getPosTextPath(text, len, &pos[0], &path); 71 strokePath(canvas, path); 72 } 73 }; 74 75 ////////////////////////////////////////////////////////////////////////////// 76 77 static skiagm::GM* F(void*) { return new GetPosTextPathGM; } 78 static skiagm::GMRegistry gR(F); 79