1 2 /* 3 * Copyright 2010 The Android Open Source Project 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 9 10 #ifndef SkPDFFormXObject_DEFINED 11 #define SkPDFFormXObject_DEFINED 12 13 #include "SkPDFStream.h" 14 #include "SkPDFTypes.h" 15 #include "SkRect.h" 16 #include "SkRefCnt.h" 17 #include "SkPDFResourceDict.h" 18 #include "SkString.h" 19 20 class SkMatrix; 21 class SkPDFDevice; 22 class SkPDFCatalog; 23 24 /** \class SkPDFFormXObject 25 26 A form XObject; a self contained description of graphics objects. A form 27 XObject is basically a page object with slightly different syntax, that 28 can be drawn onto a page. 29 */ 30 31 // The caller could keep track of the form XObjects it creates and 32 // canonicalize them, but the Skia API doesn't provide enough context to 33 // automatically do it (trivially). 34 class SkPDFFormXObject : public SkPDFStream { 35 public: 36 /** Create a PDF form XObject. Entries for the dictionary entries are 37 * automatically added. 38 * @param device The set of graphical elements on this form. 39 */ 40 explicit SkPDFFormXObject(SkPDFDevice* device); 41 /** 42 * Create a PDF form XObject from a raw content stream and associated 43 * resources. 44 */ 45 explicit SkPDFFormXObject(SkStream* content, 46 SkRect bbox, 47 SkPDFResourceDict* resourceDict); 48 virtual ~SkPDFFormXObject(); 49 50 // The SkPDFObject interface. 51 virtual void getResources(const SkTSet<SkPDFObject*>& knownResourceObjects, 52 SkTSet<SkPDFObject*>* newResourceObjects); 53 54 private: 55 void init(const char* colorSpace, 56 SkPDFDict* resourceDict, SkPDFArray* bbox); 57 58 SkTSet<SkPDFObject*> fResources; 59 }; 60 61 #endif 62