// Name: htmltag.h
// Purpose: wxHtmlTag class (represents single tag)
// Author: Vaclav Slavik
+// RCS-ID: $Id$
// Copyright: (c) 1999 Vaclav Slavik
// Licence: wxWindows Licence
/////////////////////////////////////////////////////////////////////////////
-#ifndef __HTMLTAG_H__
-#define __HTMLTAG_H__
+#ifndef _WX_HTMLTAG_H_
+#define _WX_HTMLTAG_H_
#ifdef __GNUG__
-#pragma interface
+#pragma interface "htmltag.h"
#endif
#include "wx/defs.h"
-#if wxUSE_HTML
+#if wxUSE_HTML
-//--------------------------------------------------------------------------------
-// wxHtmlTagsCache
-// !! INTERNAL STRUCTURE !! Do not use in your program!
-// This structure contains information on positions of tags
-// in the string being parsed
-//--------------------------------------------------------------------------------
+#include "wx/object.h"
-typedef struct {
- int Key;
- // this is "pos" value passed to wxHtmlTag's constructor.
- // it is position of '<' character of the tag
- int End1, End2;
- // end positions for the tag:
- // end1 is '<' of ending tag,
- // end2 is '>' or both are
- // -1 if there is no ending tag for this one...
- // or -2 if this is ending tag </...>
- char *Name;
- // name of this tag
- } sCacheItem;
+class WXDLLEXPORT wxColour;
+class WXDLLEXPORT wxHtmlEntitiesParser;
+//-----------------------------------------------------------------------------
+// wxHtmlTagsCache
+// - internal wxHTML class, do not use!
+//-----------------------------------------------------------------------------
+struct wxHtmlCacheItem;
-class wxHtmlTagsCache : public wxObject
+class WXDLLEXPORT wxHtmlTagsCache : public wxObject
{
DECLARE_DYNAMIC_CLASS(wxHtmlTagsCache)
- private:
- sCacheItem *m_Cache;
- int m_CacheSize;
- int m_CachePos;
+private:
+ wxHtmlCacheItem *m_Cache;
+ int m_CacheSize;
+ int m_CachePos;
- public:
- wxHtmlTagsCache() : wxObject() {m_CacheSize = 0; m_Cache = NULL;}
- wxHtmlTagsCache(const wxString& source);
- ~wxHtmlTagsCache() {free(m_Cache);}
+public:
+ wxHtmlTagsCache() : wxObject() {m_CacheSize = 0; m_Cache = NULL;}
+ wxHtmlTagsCache(const wxString& source);
+ ~wxHtmlTagsCache() {free(m_Cache);}
- void QueryTag(int at, int* end1, int* end2);
- // Finds parameters for tag starting at at and fills the variables
+ // Finds parameters for tag starting at at and fills the variables
+ void QueryTag(int at, int* end1, int* end2);
};
-
//--------------------------------------------------------------------------------
// wxHtmlTag
// This represents single tag. It is used as internal structure
{
DECLARE_CLASS(wxHtmlTag)
- private:
- wxString m_Name, m_Params;
- int m_Begin, m_End1, m_End2;
- bool m_Ending;
-
- public:
- wxHtmlTag(const wxString& source, int pos, int end_pos, wxHtmlTagsCache* cache);
- // constructs wxHtmlTag object based on HTML tag.
- // The tag begins (with '<' character) at position pos in source
- // end_pos is position where parsing ends (usually end of document)
-
- inline wxString GetName() const {return m_Name;};
- // Returns tag's name in uppercase.
-
- bool HasParam(const wxString& par) const;
- // Returns TRUE if the tag has given parameter. Parameter
- // should always be in uppercase.
- // Example : <IMG SRC="test.jpg"> HasParam("SRC") returns TRUE
-
- wxString GetParam(const wxString& par, bool with_commas = FALSE) const;
- // Returns value of the param. Value is in uppercase unless it is
- // enclosed with "
- // Example : <P align=right> GetParam("ALIGN") returns (RIGHT)
- // <P IMG SRC="WhaT.jpg"> GetParam("SRC") returns (WhaT.jpg)
- // (or ("WhaT.jpg") if with_commas == TRUE)
-
- void ScanParam(const wxString& par, char *format, ...) const;
- // Scans param like scanf() functions family do.
- // Example : ScanParam("COLOR", "\"#%X\"", &clr);
- // This is always with with_commas=FALSE
-
- inline const wxString& GetAllParams() const {return m_Params;};
- // Returns string containing all params.
-
- inline bool IsEnding() const {return m_Ending;};
- // return TRUE if this is ending tag (</something>) or FALSE
- // if it isn't (<something>)
-
- inline bool HasEnding() const {return m_End1 >= 0;};
- // return TRUE if this is ending tag (</something>) or FALSE
- // if it isn't (<something>)
-
- inline int GetBeginPos() const {return m_Begin;};
- // returns beginning position of _internal_ block of text
- // See explanation (returned value is marked with *):
- // bla bla bla <MYTAG>* bla bla intenal text</MYTAG> bla bla
- inline int GetEndPos1() const {return m_End1;};
- // returns ending position of _internal_ block of text.
- // bla bla bla <MYTAG> bla bla intenal text*</MYTAG> bla bla
- inline int GetEndPos2() const {return m_End2;};
- // returns end position 2 :
- // bla bla bla <MYTAG> bla bla internal text</MYTAG>* bla bla
+protected:
+ // constructs wxHtmlTag object based on HTML tag.
+ // The tag begins (with '<' character) at position pos in source
+ // end_pos is position where parsing ends (usually end of document)
+ wxHtmlTag(wxHtmlTag *parent,
+ const wxString& source, int pos, int end_pos,
+ wxHtmlTagsCache *cache,
+ wxHtmlEntitiesParser *entParser);
+ friend class wxHtmlParser;
+public:
+ ~wxHtmlTag();
+
+ wxHtmlTag *GetParent() const {return m_Parent;}
+ wxHtmlTag *GetFirstSibling() const;
+ wxHtmlTag *GetLastSibling() const;
+ wxHtmlTag *GetChildren() const { return m_FirstChild; }
+ wxHtmlTag *GetPreviousSibling() const { return m_Prev; }
+ wxHtmlTag *GetNextSibling() const {return m_Next; }
+ // Return next tag, as if tree had been flattened
+ wxHtmlTag *GetNextTag() const;
+
+ // Returns tag's name in uppercase.
+ inline wxString GetName() const {return m_Name;}
+
+ // Returns TRUE if the tag has given parameter. Parameter
+ // should always be in uppercase.
+ // Example : <IMG SRC="test.jpg"> HasParam("SRC") returns TRUE
+ bool HasParam(const wxString& par) const;
+
+ // Returns value of the param. Value is in uppercase unless it is
+ // enclosed with "
+ // Example : <P align=right> GetParam("ALIGN") returns (RIGHT)
+ // <P IMG SRC="WhaT.jpg"> GetParam("SRC") returns (WhaT.jpg)
+ // (or ("WhaT.jpg") if with_commas == TRUE)
+ wxString GetParam(const wxString& par, bool with_commas = FALSE) const;
+
+ // Convenience functions:
+ bool GetParamAsColour(const wxString& par, wxColour *clr) const;
+ bool GetParamAsInt(const wxString& par, int *clr) const;
+
+ // Scans param like scanf() functions family does.
+ // Example : ScanParam("COLOR", "\"#%X\"", &clr);
+ // This is always with with_commas=FALSE
+ // Returns number of scanned values
+ // (like sscanf() does)
+ // NOTE: unlike scanf family, this function only accepts
+ // *one* parameter !
+ int ScanParam(const wxString& par, const wxChar *format, void *param) const;
+
+ // Returns string containing all params.
+ wxString GetAllParams() const;
+
+#if WXWIN_COMPATIBILITY_2_2
+ // return TRUE if this is ending tag (</something>) or FALSE
+ // if it isn't (<something>)
+ inline bool IsEnding() const {return FALSE;}
+#endif
+
+ // return TRUE if this there is matching ending tag
+ inline bool HasEnding() const {return m_End1 >= 0;}
+
+ // returns beginning position of _internal_ block of text
+ // See explanation (returned value is marked with *):
+ // bla bla bla <MYTAG>* bla bla intenal text</MYTAG> bla bla
+ inline int GetBeginPos() const {return m_Begin;}
+ // returns ending position of _internal_ block of text.
+ // bla bla bla <MYTAG> bla bla intenal text*</MYTAG> bla bla
+ inline int GetEndPos1() const {return m_End1;}
+ // returns end position 2 :
+ // bla bla bla <MYTAG> bla bla internal text</MYTAG>* bla bla
+ inline int GetEndPos2() const {return m_End2;}
+
+private:
+ wxString m_Name;
+ int m_Begin, m_End1, m_End2;
+ wxArrayString m_ParamNames, m_ParamValues;
+
+ // DOM tree relations:
+ wxHtmlTag *m_Next;
+ wxHtmlTag *m_Prev;
+ wxHtmlTag *m_FirstChild, *m_LastChild;
+ wxHtmlTag *m_Parent;
};
+#endif
-#endif // __HTMLTAG_H__
+#endif // _WX_HTMLTAG_H_
-#endif
projects / wxWidgets.git / blobdiff