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      1 
      2 /*
      3  * Copyright 2006 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 SkXMLWriter_DEFINED
     11 #define SkXMLWriter_DEFINED
     12 
     13 #include "SkTDArray.h"
     14 #include "SkString.h"
     15 #include "SkDOM.h"
     16 
     17 class SkWStream;
     18 class SkXMLParser;
     19 
     20 class SkXMLWriter {
     21 public:
     22             SkXMLWriter(bool doEscapeMarkup = true);
     23     virtual ~SkXMLWriter();
     24 
     25     void    addS32Attribute(const char name[], int32_t value);
     26     void    addAttribute(const char name[], const char value[]);
     27     void    addAttributeLen(const char name[], const char value[], size_t length);
     28     void    addHexAttribute(const char name[], uint32_t value, int minDigits = 0);
     29     void    addScalarAttribute(const char name[], SkScalar value);
     30     void    endElement() { this->onEndElement(); }
     31     void    startElement(const char elem[]);
     32     void    startElementLen(const char elem[], size_t length);
     33     void    writeDOM(const SkDOM&, const SkDOM::Node*, bool skipRoot);
     34     void    flush();
     35     virtual void writeHeader();
     36 
     37 protected:
     38     virtual void onStartElementLen(const char elem[], size_t length) = 0;
     39     virtual void onAddAttributeLen(const char name[], const char value[], size_t length) = 0;
     40     virtual void onEndElement() = 0;
     41 
     42     struct Elem {
     43         SkString    fName;
     44         bool        fHasChildren;
     45     };
     46     void doEnd(Elem* elem);
     47     bool doStart(const char name[], size_t length);
     48     Elem* getEnd();
     49     const char* getHeader();
     50     SkTDArray<Elem*> fElems;
     51 
     52 private:
     53     bool fDoEscapeMarkup;
     54     // illegal
     55     SkXMLWriter& operator=(const SkXMLWriter&);
     56 };
     57 
     58 class SkXMLStreamWriter : public SkXMLWriter {
     59 public:
     60     SkXMLStreamWriter(SkWStream*);
     61     virtual ~SkXMLStreamWriter();
     62     virtual void    writeHeader();
     63     SkDEBUGCODE(static void UnitTest();)
     64 protected:
     65     virtual void onStartElementLen(const char elem[], size_t length);
     66     virtual void onEndElement();
     67     virtual void onAddAttributeLen(const char name[], const char value[], size_t length);
     68 private:
     69     SkWStream&      fStream;
     70 };
     71 
     72 class SkXMLParserWriter : public SkXMLWriter {
     73 public:
     74     SkXMLParserWriter(SkXMLParser*);
     75     virtual ~SkXMLParserWriter();
     76 protected:
     77     virtual void onStartElementLen(const char elem[], size_t length);
     78     virtual void onEndElement();
     79     virtual void onAddAttributeLen(const char name[], const char value[], size_t length);
     80 private:
     81     SkXMLParser&        fParser;
     82 };
     83 
     84 
     85 #endif
     86