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 "SkAnnotation.h"
9 #include "SkData.h"
10 #include "SkPaint.h"
11 #include "SkPoint.h"
12 #include "SkReadBuffer.h"
13 #include "SkWriteBuffer.h"
14
SkAnnotation(const char key[],SkData * value)15 SkAnnotation::SkAnnotation(const char key[], SkData* value) : fKey(key) {
16 if (nullptr == value) {
17 value = SkData::NewEmpty();
18 } else {
19 value->ref();
20 }
21 fData = value;
22 }
23
~SkAnnotation()24 SkAnnotation::~SkAnnotation() {
25 fData->unref();
26 }
27
find(const char key[]) const28 SkData* SkAnnotation::find(const char key[]) const {
29 return fKey.equals(key) ? fData : nullptr;
30 }
31
SkAnnotation(SkReadBuffer & buffer)32 SkAnnotation::SkAnnotation(SkReadBuffer& buffer) {
33 buffer.readString(&fKey);
34 fData = buffer.readByteArrayAsData();
35 }
36
writeToBuffer(SkWriteBuffer & buffer) const37 void SkAnnotation::writeToBuffer(SkWriteBuffer& buffer) const {
38 buffer.writeString(fKey.c_str());
39 buffer.writeDataAsByteArray(fData);
40 }
41
URL_Key()42 const char* SkAnnotationKeys::URL_Key() {
43 return "SkAnnotationKey_URL";
44 };
45
Define_Named_Dest_Key()46 const char* SkAnnotationKeys::Define_Named_Dest_Key() {
47 return "SkAnnotationKey_Define_Named_Dest";
48 };
49
Link_Named_Dest_Key()50 const char* SkAnnotationKeys::Link_Named_Dest_Key() {
51 return "SkAnnotationKey_Link_Named_Dest";
52 };
53
54 ///////////////////////////////////////////////////////////////////////////////
55
56 #include "SkCanvas.h"
57
annotate_paint(SkPaint & paint,const char * key,SkData * value)58 static void annotate_paint(SkPaint& paint, const char* key, SkData* value) {
59 paint.setAnnotation(SkAnnotation::Create(key, value))->unref();
60 }
61
SkAnnotateRectWithURL(SkCanvas * canvas,const SkRect & rect,SkData * value)62 void SkAnnotateRectWithURL(SkCanvas* canvas, const SkRect& rect, SkData* value) {
63 if (nullptr == value) {
64 return;
65 }
66 SkPaint paint;
67 annotate_paint(paint, SkAnnotationKeys::URL_Key(), value);
68 canvas->drawRect(rect, paint);
69 }
70
SkAnnotateNamedDestination(SkCanvas * canvas,const SkPoint & point,SkData * name)71 void SkAnnotateNamedDestination(SkCanvas* canvas, const SkPoint& point, SkData* name) {
72 if (nullptr == name) {
73 return;
74 }
75 SkPaint paint;
76 annotate_paint(paint, SkAnnotationKeys::Define_Named_Dest_Key(), name);
77 canvas->drawPoint(point.x(), point.y(), paint);
78 }
79
SkAnnotateLinkToDestination(SkCanvas * canvas,const SkRect & rect,SkData * name)80 void SkAnnotateLinkToDestination(SkCanvas* canvas, const SkRect& rect, SkData* name) {
81 if (nullptr == name) {
82 return;
83 }
84 SkPaint paint;
85 annotate_paint(paint, SkAnnotationKeys::Link_Named_Dest_Key(), name);
86 canvas->drawRect(rect, paint);
87 }
88