1 2 /* 3 * Copyright 2011 Google Inc. 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 9 10 /* Tests text vertical text rendering with different fonts and centering. 11 */ 12 13 #include "gm.h" 14 #include "SkCanvas.h" 15 #include "SkTypeface.h" 16 17 namespace skiagm { 18 19 class VertText2GM : public GM { 20 public: 21 VertText2GM() { 22 const int pointSize = 24; 23 textHeight = SkIntToScalar(pointSize); 24 fProp = sk_tool_utils::create_portable_typeface("Helvetica", SkTypeface::kNormal); 25 fMono = sk_tool_utils::create_portable_typeface("Courier New", SkTypeface::kNormal); 26 } 27 28 virtual ~VertText2GM() { 29 SkSafeUnref(fProp); 30 SkSafeUnref(fMono); 31 } 32 33 protected: 34 virtual uint32_t onGetFlags() const SK_OVERRIDE { 35 return kSkipTiled_Flag; 36 } 37 38 39 SkString onShortName() { 40 return SkString("verttext2"); 41 } 42 43 SkISize onISize() { return SkISize::Make(640, 480); } 44 45 virtual void onDraw(SkCanvas* canvas) { 46 47 for (int i = 0; i < 3; ++i) { 48 SkPaint paint; 49 paint.setColor(SK_ColorRED); 50 paint.setAntiAlias(true); 51 y = textHeight; 52 canvas->drawLine(0, SkIntToScalar(10), 53 SkIntToScalar(110), SkIntToScalar(10), paint); 54 canvas->drawLine(0, SkIntToScalar(240), 55 SkIntToScalar(110), SkIntToScalar(240), paint); 56 canvas->drawLine(0, SkIntToScalar(470), 57 SkIntToScalar(110), SkIntToScalar(470), paint); 58 drawText(canvas, SkString("Proportional / Top Aligned"), 59 fProp, SkPaint::kLeft_Align); 60 drawText(canvas, SkString("< Proportional / Centered >"), 61 fProp, SkPaint::kCenter_Align); 62 drawText(canvas, SkString("Monospaced / Top Aligned"), 63 fMono, SkPaint::kLeft_Align); 64 drawText(canvas, SkString("< Monospaced / Centered >"), 65 fMono, SkPaint::kCenter_Align); 66 canvas->rotate(SkIntToScalar(-15)); 67 canvas->translate(textHeight * 4, SkIntToScalar(50)); 68 if (i > 0) { 69 canvas->translate(0, SkIntToScalar(50)); 70 } 71 } 72 } 73 74 void drawText(SkCanvas* canvas, const SkString& string, 75 SkTypeface* family, SkPaint::Align alignment) { 76 SkPaint paint; 77 paint.setColor(SK_ColorBLACK); 78 paint.setAntiAlias(true); 79 paint.setVerticalText(true); 80 paint.setTextAlign(alignment); 81 paint.setTypeface(family); 82 paint.setTextSize(textHeight); 83 84 canvas->drawText(string.c_str(), string.size(), y, 85 SkIntToScalar(alignment == SkPaint::kLeft_Align ? 10 : 240), 86 paint); 87 y += textHeight; 88 } 89 90 private: 91 typedef GM INHERITED; 92 SkScalar y, textHeight; 93 SkTypeface* fProp; 94 SkTypeface* fMono; 95 }; 96 97 /////////////////////////////////////////////////////////////////////////////// 98 99 static GM* MyFactory(void*) { return new VertText2GM; } 100 static GMRegistry reg(MyFactory); 101 102 } 103