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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SkPDFFormXObject_DEFINED
#define SkPDFFormXObject_DEFINED
#include "SkPDFStream.h"
#include "SkPDFTypes.h"
#include "SkRefCnt.h"
#include "SkString.h"
class SkMatrix;
class SkPDFDevice;
class SkPDFCatalog;
/** \class SkPDFFormXObject
A form XObject; a self contained description of graphics objects. A form
XObject is basically a page object with slightly different syntax, that
can be drawn onto a page.
*/
// The caller could keep track of the form XObjects it creates and
// canonicalize them, but the Skia API doesn't provide enough context to
// automatically do it (trivially).
class SkPDFFormXObject : public SkPDFObject {
public:
/** Create a PDF form XObject. Entries for the dictionary entries are
* automatically added.
* @param device The set of graphical elements on this form.
*/
explicit SkPDFFormXObject(SkPDFDevice* device);
virtual ~SkPDFFormXObject();
// The SkPDFObject interface.
virtual void emitObject(SkWStream* stream, SkPDFCatalog* catalog,
bool indirect);
virtual size_t getOutputSize(SkPDFCatalog* catalog, bool indirect);
virtual void getResources(SkTDArray<SkPDFObject*>* resourceList);
/** Add the value to the stream dictionary with the given key. Refs value.
* @param key The key for this dictionary entry.
* @param value The value for this dictionary entry.
* @return The value argument is returned.
*/
SkPDFObject* insert(SkPDFName* key, SkPDFObject* value);
/** Add the value to the stream dictionary with the given key. Refs value.
* @param key The text of the key for this dictionary entry.
* @param value The value for this dictionary entry.
* @return The value argument is returned.
*/
SkPDFObject* insert(const char key[], SkPDFObject* value);
private:
SkRefPtr<SkPDFStream> fStream;
SkTDArray<SkPDFObject*> fResources;
};
#endif
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