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00017 #ifndef SkDOM_DEFINED
00018 #define SkDOM_DEFINED
00019
00020 #include "SkChunkAlloc.h"
00021 #include "SkMath.h"
00022 #include "SkScalar.h"
00023 #include "SkTemplates.h"
00024
00025 struct SkDOMNode;
00026 struct SkDOMAttr;
00027
00028 class SkDOM {
00029 public:
00030 SkDOM();
00031 ~SkDOM();
00032
00033 typedef SkDOMNode Node;
00034 typedef SkDOMAttr Attr;
00035
00038 const Node* build(const char doc[], size_t len);
00039 const Node* copy(const SkDOM& dom, const Node* node);
00040
00041 const Node* getRootNode() const;
00042
00043 enum Type {
00044 kElement_Type,
00045 kText_Type
00046 };
00047 Type getType(const Node*) const;
00048
00049 const char* getName(const Node*) const;
00050 const Node* getFirstChild(const Node*, const char elem[] = NULL) const;
00051 const Node* getNextSibling(const Node*, const char elem[] = NULL) const;
00052
00053 const char* findAttr(const Node*, const char attrName[]) const;
00054 const Attr* getFirstAttr(const Node*) const;
00055 const Attr* getNextAttr(const Node*, const Attr*) const;
00056 const char* getAttrName(const Node*, const Attr*) const;
00057 const char* getAttrValue(const Node*, const Attr*) const;
00058
00059
00060 int countChildren(const Node* node, const char elem[] = NULL) const;
00061
00062
00063 bool findS32(const Node*, const char name[], int32_t* value) const;
00064 bool findScalars(const Node*, const char name[], SkScalar value[], int count) const;
00065 bool findHex(const Node*, const char name[], uint32_t* value) const;
00066 bool findBool(const Node*, const char name[], bool*) const;
00067 int findList(const Node*, const char name[], const char list[]) const;
00068
00069 bool findScalar(const Node* node, const char name[], SkScalar value[]) const
00070 {
00071 return this->findScalars(node, name, value, 1);
00072 }
00073
00074 bool hasAttr(const Node*, const char name[], const char value[]) const;
00075 bool hasS32(const Node*, const char name[], int32_t value) const;
00076 bool hasScalar(const Node*, const char name[], SkScalar value) const;
00077 bool hasHex(const Node*, const char name[], uint32_t value) const;
00078 bool hasBool(const Node*, const char name[], bool value) const;
00079
00080 class AttrIter {
00081 public:
00082 AttrIter(const class SkDOM&, const Node*);
00083 const char* next(const char** value);
00084 private:
00085 const Attr* fAttr;
00086 const Attr* fStop;
00087 };
00088
00089 SkDEBUGCODE(void dump(const Node* node = NULL, int tabLevel = 0) const;)
00090 SkDEBUGCODE(static void UnitTest();)
00091
00092 private:
00093 SkChunkAlloc fAlloc;
00094 Node* fRoot;
00095 friend class AttrIter;
00096 friend class SkDOMParser;
00097 };
00098
00099 #endif
00100