michael@0: /*
michael@0:  * Copyright 2012 Google Inc.
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: 
michael@0: #include "SkAnnotation.h"
michael@0: #include "SkData.h"
michael@0: #include "SkReadBuffer.h"
michael@0: #include "SkWriteBuffer.h"
michael@0: #include "SkPoint.h"
michael@0: #include "SkStream.h"
michael@0: 
michael@0: SkAnnotation::SkAnnotation(const char key[], SkData* value) : fKey(key) {
michael@0:     if (NULL == value) {
michael@0:         value = SkData::NewEmpty();
michael@0:     } else {
michael@0:         value->ref();
michael@0:     }
michael@0:     fData = value;
michael@0: }
michael@0: 
michael@0: SkAnnotation::~SkAnnotation() {
michael@0:     fData->unref();
michael@0: }
michael@0: 
michael@0: SkData* SkAnnotation::find(const char key[]) const {
michael@0:     return fKey.equals(key) ? fData : NULL;
michael@0: }
michael@0: 
michael@0: SkAnnotation::SkAnnotation(SkReadBuffer& buffer) {
michael@0:     buffer.readString(&fKey);
michael@0:     fData = buffer.readByteArrayAsData();
michael@0: }
michael@0: 
michael@0: void SkAnnotation::writeToBuffer(SkWriteBuffer& buffer) const {
michael@0:     buffer.writeString(fKey.c_str());
michael@0:     buffer.writeDataAsByteArray(fData);
michael@0: }
michael@0: 
michael@0: const char* SkAnnotationKeys::URL_Key() {
michael@0:     return "SkAnnotationKey_URL";
michael@0: };
michael@0: 
michael@0: const char* SkAnnotationKeys::Define_Named_Dest_Key() {
michael@0:     return "SkAnnotationKey_Define_Named_Dest";
michael@0: };
michael@0: 
michael@0: const char* SkAnnotationKeys::Link_Named_Dest_Key() {
michael@0:     return "SkAnnotationKey_Link_Named_Dest";
michael@0: };
michael@0: 
michael@0: ///////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: #include "SkCanvas.h"
michael@0: 
michael@0: static void annotate_paint(SkPaint& paint, const char* key, SkData* value) {
michael@0:     paint.setAnnotation(SkAnnotation::Create(key, value))->unref();
michael@0: }
michael@0: 
michael@0: void SkAnnotateRectWithURL(SkCanvas* canvas, const SkRect& rect, SkData* value) {
michael@0:     if (NULL == value) {
michael@0:         return;
michael@0:     }
michael@0:     SkPaint paint;
michael@0:     annotate_paint(paint, SkAnnotationKeys::URL_Key(), value);
michael@0:     canvas->drawRect(rect, paint);
michael@0: }
michael@0: 
michael@0: void SkAnnotateNamedDestination(SkCanvas* canvas, const SkPoint& point, SkData* name) {
michael@0:     if (NULL == name) {
michael@0:         return;
michael@0:     }
michael@0:     SkPaint paint;
michael@0:     annotate_paint(paint, SkAnnotationKeys::Define_Named_Dest_Key(), name);
michael@0:     canvas->drawPoint(point.x(), point.y(), paint);
michael@0: }
michael@0: 
michael@0: void SkAnnotateLinkToDestination(SkCanvas* canvas, const SkRect& rect, SkData* name) {
michael@0:     if (NULL == name) {
michael@0:         return;
michael@0:     }
michael@0:     SkPaint paint;
michael@0:     annotate_paint(paint, SkAnnotationKeys::Link_Named_Dest_Key(), name);
michael@0:     canvas->drawRect(rect, paint);
michael@0: }