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:
InternalLinksGM()22 InternalLinksGM() {
23 this->setBGColor(0xFFDDDDDD);
24 }
25
26 protected:
onShortName()27 virtual SkString onShortName() {
28 return SkString("internal_links");
29 }
30
onISize()31 virtual SkISize onISize() {
32 return SkISize::Make(700, 500);
33 }
34
onDraw(SkCanvas * canvas)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. */
drawLabeledRect(SkCanvas * canvas,const char * text,SkScalar x,SkScalar y)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 sk_tool_utils::set_portable_typeface(&paint);
65 paint.setTextSize(SkIntToScalar(25));
66 paint.setColor(SK_ColorBLACK);
67 canvas->drawText(text, strlen(text), x, y, paint);
68 }
69
70 typedef GM INHERITED;
71 };
72
73 //////////////////////////////////////////////////////////////////////////////
74
MyFactory(void *)75 static GM* MyFactory(void*) { return SkNEW(InternalLinksGM); }
76 static GMRegistry reg(MyFactory);
77
78 }
79