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comparison: gfx/skia/trunk/src/pdf/SkPDFResourceDict.h
gfx/skia/trunk/src/pdf/SkPDFResourceDict.h
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- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:c97c7e69f282 |
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| 1 /* | |
| 2 * Copyright 2013 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 #ifndef SkPDFResourceDict_DEFINED | |
| 9 #define SkPDFResourceDict_DEFINED | |
| 10 | |
| 11 #include "SkPDFTypes.h" | |
| 12 #include "SkTDArray.h" | |
| 13 #include "SkTSet.h" | |
| 14 #include "SkTypes.h" | |
| 15 | |
| 16 /** \class SkPDFResourceDict | |
| 17 | |
| 18 A resource dictionary, which maintains the relevant sub-dicts and | |
| 19 allows generation of a list of referenced SkPDFObjects inserted with | |
| 20 insertResourceAsRef. | |
| 21 */ | |
| 22 class SkPDFResourceDict : public SkPDFDict { | |
| 23 public: | |
| 24 SK_DECLARE_INST_COUNT(SkPDFResourceDict) | |
| 25 | |
| 26 enum SkPDFResourceType{ | |
| 27 kExtGState_ResourceType, | |
| 28 kPattern_ResourceType, | |
| 29 kXObject_ResourceType, | |
| 30 kFont_ResourceType, | |
| 31 // These additional types are defined by the spec, but not | |
| 32 // currently used by Skia: ColorSpace, Shading, Properties | |
| 33 kResourceTypeCount | |
| 34 }; | |
| 35 | |
| 36 /** Create a PDF resource dictionary. | |
| 37 * The full set of ProcSet entries is automatically created for backwards | |
| 38 * compatibility, as recommended by the PDF spec. | |
| 39 */ | |
| 40 SkPDFResourceDict(); | |
| 41 | |
| 42 /** Add the value SkPDFObject as a reference to the resource dictionary | |
| 43 * with the give type and key. | |
| 44 * The relevant sub-dicts will be automatically generated, and the | |
| 45 * resource will be named by concatenating a type-specific prefix and | |
| 46 * the input key. | |
| 47 * This object will be part of the resource list when requested later. | |
| 48 * @param type The type of resource being entered, like | |
| 49 * kPattern_ResourceType or kExtGState_ResourceType. | |
| 50 * @param key The resource key, should be unique within its type. | |
| 51 * @param value The resource itself. | |
| 52 * @return The value argument is returned. | |
| 53 */ | |
| 54 SkPDFObject* insertResourceAsReference(SkPDFResourceType type, int key, | |
| 55 SkPDFObject* value); | |
| 56 | |
| 57 /** | |
| 58 * Gets resources inserted into this dictionary as a reference. | |
| 59 * | |
| 60 * @param knownResourceObjects Set containing currently known resources. | |
| 61 * Resources in the dict and this set will not be added to the output. | |
| 62 * @param newResourceObjects Output set to which non-preexisting resources | |
| 63 * will be added. | |
| 64 * @param recursive Whether or not to add resources of resources. | |
| 65 */ | |
| 66 void getReferencedResources( | |
| 67 const SkTSet<SkPDFObject*>& knownResourceObjects, | |
| 68 SkTSet<SkPDFObject*>* newResourceObjects, | |
| 69 bool recursive) const; | |
| 70 | |
| 71 /** | |
| 72 * Returns the name for the resource that will be generated by the resource | |
| 73 * dict. | |
| 74 * | |
| 75 * @param type The type of resource being entered, like | |
| 76 * kPattern_ResourceType or kExtGState_ResourceType. | |
| 77 * @param key The resource key, should be unique within its type. | |
| 78 */ | |
| 79 static SkString getResourceName(SkPDFResourceType type, int key); | |
| 80 | |
| 81 private: | |
| 82 /** Add the value to the dictionary with the given key. Refs value. | |
| 83 * The relevant sub-dicts will be automatically generated, and the | |
| 84 * resource will be named by concatenating a type-specific prefix and | |
| 85 * the input key. | |
| 86 * The object will NOT be part of the resource list when requested later. | |
| 87 * @param type The type of resource being entered. | |
| 88 * @param key The resource key, should be unique within its type. | |
| 89 * @param value The resource itself. | |
| 90 * @return The value argument is returned. | |
| 91 */ | |
| 92 SkPDFObject* insertResource(SkPDFResourceType type, int key, | |
| 93 SkPDFObject* value); | |
| 94 | |
| 95 SkTSet<SkPDFObject*> fResources; | |
| 96 | |
| 97 SkTDArray<SkPDFDict*> fTypes; | |
| 98 typedef SkPDFDict INHERITED; | |
| 99 }; | |
| 100 | |
| 101 #endif |
