| /* |
| * Copyright 2006 The Android Open Source Project |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkDOM_DEFINED |
| #define SkDOM_DEFINED |
| |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkTypes.h" |
| #include "include/private/base/SkNoncopyable.h" |
| #include "include/private/base/SkTemplates.h" |
| #include "src/base/SkArenaAlloc.h" |
| |
| struct SkDOMNode; |
| struct SkDOMAttr; |
| |
| class SkDOMParser; |
| class SkStream; |
| class SkXMLParser; |
| |
| class SkDOM : public SkNoncopyable { |
| public: |
| SkDOM(); |
| ~SkDOM(); |
| |
| typedef SkDOMNode Node; |
| typedef SkDOMAttr Attr; |
| |
| /** Returns null on failure |
| */ |
| const Node* build(SkStream&); |
| const Node* copy(const SkDOM& dom, const Node* node); |
| |
| const Node* getRootNode() const; |
| |
| SkXMLParser* beginParsing(); |
| const Node* finishParsing(); |
| |
| enum Type { |
| kElement_Type, |
| kText_Type |
| }; |
| Type getType(const Node*) const; |
| |
| const char* getName(const Node*) const; |
| const Node* getFirstChild(const Node*, const char elem[] = nullptr) const; |
| const Node* getNextSibling(const Node*, const char elem[] = nullptr) const; |
| |
| const char* findAttr(const Node*, const char attrName[]) const; |
| const Attr* getFirstAttr(const Node*) const; |
| const Attr* getNextAttr(const Node*, const Attr*) const; |
| const char* getAttrName(const Node*, const Attr*) const; |
| const char* getAttrValue(const Node*, const Attr*) const; |
| |
| // helpers for walking children |
| int countChildren(const Node* node, const char elem[] = nullptr) const; |
| |
| // helpers for calling SkParse |
| bool findS32(const Node*, const char name[], int32_t* value) const; |
| bool findScalars(const Node*, const char name[], SkScalar value[], int count) const; |
| bool findHex(const Node*, const char name[], uint32_t* value) const; |
| bool findBool(const Node*, const char name[], bool*) const; |
| int findList(const Node*, const char name[], const char list[]) const; |
| |
| bool findScalar(const Node* node, const char name[], SkScalar value[]) const { |
| return this->findScalars(node, name, value, 1); |
| } |
| |
| bool hasAttr(const Node*, const char name[], const char value[]) const; |
| bool hasS32(const Node*, const char name[], int32_t value) const; |
| bool hasScalar(const Node*, const char name[], SkScalar value) const; |
| bool hasHex(const Node*, const char name[], uint32_t value) const; |
| bool hasBool(const Node*, const char name[], bool value) const; |
| |
| class AttrIter { |
| public: |
| AttrIter(const SkDOM&, const Node*); |
| const char* next(const char** value); |
| private: |
| const Attr* fAttr; |
| const Attr* fStop; |
| }; |
| |
| private: |
| SkArenaAllocWithReset fAlloc; |
| Node* fRoot; |
| std::unique_ptr<SkDOMParser> fParser; |
| |
| using INHERITED = SkNoncopyable; |
| }; |
| |
| #endif |