1 2 /* 3 * Copyright 2013 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 #include "gm.h" 9 10 #include "SkAnnotation.h" 11 #include "SkData.h" 12 13 namespace skiagm { 14 15 /** Draws two rectangles. In output formats that support internal links (PDF), 16 * clicking the one labeled "Link to A" should take you to the one labeled 17 * "Target A". Note that you'll need to zoom your PDF viewer in a fair bit in 18 * order for the scrolling to not be blocked by the edge of the document. 19 */ 20 class InternalLinksGM : public GM { 21 public: 22 InternalLinksGM() { 23 this->setBGColor(0xFFDDDDDD); 24 } 25 26 protected: 27 virtual SkString onShortName() { 28 return SkString("internal_links"); 29 } 30 31 virtual SkISize onISize() { 32 return make_isize(700, 500); 33 } 34 35 virtual void onDraw(SkCanvas* canvas) { 36 SkAutoTUnref<SkData> name(SkData::NewWithCString("target-a")); 37 38 canvas->save(); 39 canvas->translate(SkIntToScalar(100), SkIntToScalar(100)); 40 drawLabeledRect(canvas, "Link to A", 0, 0); 41 SkRect rect = SkRect::MakeXYWH(0, 0, SkIntToScalar(50), SkIntToScalar(20)); 42 SkAnnotateLinkToDestination(canvas, rect, name.get()); 43 canvas->restore(); 44 45 canvas->save(); 46 canvas->translate(SkIntToScalar(200), SkIntToScalar(200)); 47 SkPoint point = SkPoint::Make(SkIntToScalar(100), SkIntToScalar(50)); 48 drawLabeledRect(canvas, "Target A", point.x(), point.y()); 49 SkAnnotateNamedDestination(canvas, point, name.get()); 50 canvas->restore(); 51 } 52 53 private: 54 /** Draw an arbitrary rectangle at a given location and label it with some 55 * text. */ 56 void drawLabeledRect(SkCanvas* canvas, const char* text, SkScalar x, SkScalar y) { 57 SkPaint paint; 58 paint.setColor(SK_ColorBLUE); 59 SkRect rect = SkRect::MakeXYWH(x, y, 60 SkIntToScalar(50), SkIntToScalar(20)); 61 canvas->drawRect(rect, paint); 62 63 paint.setAntiAlias(true); 64 paint.setTextSize(SkIntToScalar(25)); 65 paint.setColor(SK_ColorBLACK); 66 canvas->drawText(text, strlen(text), x, y, paint); 67 } 68 69 typedef GM INHERITED; 70 }; 71 72 ////////////////////////////////////////////////////////////////////////////// 73 74 static GM* MyFactory(void*) { return SkNEW(InternalLinksGM); } 75 static GMRegistry reg(MyFactory); 76 77 } 78
