diff --git a/include/wx/html/htmlpars.h b/include/wx/html/htmlpars.h index 77e091e5a3..272c44ad5e 100644 --- a/include/wx/html/htmlpars.h +++ b/include/wx/html/htmlpars.h @@ -36,97 +36,100 @@ class WXDLLEXPORT wxHtmlParser : public wxObject { DECLARE_ABSTRACT_CLASS(wxHtmlParser) - public: - wxHtmlParser() : wxObject(), m_HandlersHash(wxKEY_STRING) {m_FS = NULL; m_Cache = NULL; m_HandlersStack = NULL;} - virtual ~wxHtmlParser(); +public: + wxHtmlParser() : wxObject(), m_HandlersHash(wxKEY_STRING) + { m_FS = NULL; m_Cache = NULL; m_HandlersStack = NULL; } + virtual ~wxHtmlParser(); - void SetFS(wxFileSystem *fs) {m_FS = fs;} - // Sets the class which will be used for opening files - wxFileSystem* GetFS() const {return m_FS;} + // Sets the class which will be used for opening files + void SetFS(wxFileSystem *fs) { m_FS = fs; } - wxObject* Parse(const wxString& source); - // You can simply call this method when you need parsed output. - // This method does these things: - // 1. call InitParser(source); - // 2. call DoParsing(); - // 3. call GetProduct(); (it's return value is then returned) - // 4. call DoneParser(); + wxFileSystem* GetFS() const { return m_FS; } - virtual void InitParser(const wxString& source); - // Sets the source. This must be called before running Parse() method. - virtual void DoneParser(); - // This must be called after Parse(). - - void DoParsing(int begin_pos, int end_pos); - inline void DoParsing() {DoParsing(0, m_Source.Length());}; - // Parses the m_Source from begin_pos to end_pos-1. - // (in noparams version it parses whole m_Source) + // You can simply call this method when you need parsed output. + // This method does these things: + // 1. call InitParser(source); + // 2. call DoParsing(); + // 3. call GetProduct(); (it's return value is then returned) + // 4. call DoneParser(); + wxObject* Parse(const wxString& source); - virtual wxObject* GetProduct() = 0; - // Returns product of parsing - // Returned value is result of parsing of the part. The type of this result - // depends on internal representation in derived parser - // (see wxHtmlWinParser for details). + // Sets the source. This must be called before running Parse() method. + virtual void InitParser(const wxString& source); + // This must be called after Parse(). + virtual void DoneParser(); - virtual void AddTagHandler(wxHtmlTagHandler *handler); - // adds handler to the list & hash table of handlers. - - void PushTagHandler(wxHtmlTagHandler *handler, wxString tags); - // Forces the handler to handle additional tags (not returned by GetSupportedTags). - // The handler should already be in use by this parser. - // Example: you want to parse following pseudo-html structure: - // - // - // - // - // This last it has different meaning, we don't want it to be parsed by myitems handler! - // handler can handle only 'myitems' (e.g. it's GetSupportedTags returns "MYITEMS") - // you can call PushTagHandler(handler, "IT") when you find - // and call PopTagHandler() when you find - - void PopTagHandler(); - // Restores state before last call to PushTagHandler + // Parses the m_Source from begin_pos to end_pos-1. + // (in noparams version it parses whole m_Source) + void DoParsing(int begin_pos, int end_pos); + inline void DoParsing() {DoParsing(0, m_Source.Length());}; - wxString* GetSource() {return &m_Source;} + // Returns product of parsing + // Returned value is result of parsing of the part. The type of this result + // depends on internal representation in derived parser + // (see wxHtmlWinParser for details). + virtual wxObject* GetProduct() = 0; - protected: + // adds handler to the list & hash table of handlers. + virtual void AddTagHandler(wxHtmlTagHandler *handler); - virtual void AddText(const char* txt) = 0; - // Adds text to the output. - // This is called from Parse() and must be overriden in derived classes. - // txt is not guaranteed to be only one word. It is largest continuous part of text - // (= not broken by tags) - // NOTE : using char* because of speed improvements + // Forces the handler to handle additional tags (not returned by GetSupportedTags). + // The handler should already be in use by this parser. + // Example: you want to parse following pseudo-html structure: + // + // + // + // + // This last it has different meaning, we don't want it to be parsed by myitems handler! + // handler can handle only 'myitems' (e.g. it's GetSupportedTags returns "MYITEMS") + // you can call PushTagHandler(handler, "IT") when you find + // and call PopTagHandler() when you find + void PushTagHandler(wxHtmlTagHandler *handler, wxString tags); - virtual void AddTag(const wxHtmlTag& tag); - // Adds tag and proceeds it. Parse() may (and usually is) called from this method. - // This is called from Parse() and may be overriden. - // Default behavior is that it looks for proper handler in m_Handlers. The tag is - // ignored if no hander is found. - // Derived class is *responsible* for filling in m_Handlers table. + // Restores state before last call to PushTagHandler + void PopTagHandler(); + wxString* GetSource() {return &m_Source;} + void SetSource(const wxString& src); - protected: - wxString m_Source; - // source being parsed - wxHtmlTagsCache *m_Cache; - // tags cache, used during parsing. - wxHashTable m_HandlersHash; - wxList m_HandlersList; - // handlers that handle particular tags. The table is accessed by - // key = tag's name. - // This attribute MUST be filled by derived class otherwise it would - // be empty and no tags would be recognized - // (see wxHtmlWinParser for details about filling it) - // m_HandlersHash is for random access based on knowledge of tag name (BR, P, etc.) - // it may (and often does) contain more references to one object - // m_HandlersList is list of all handlers and it is guaranteed to contain - // only one reference to each handler instance. - wxFileSystem *m_FS; - // class for opening files (file system) - wxList *m_HandlersStack; - // handlers stack used by PushTagHandler and PopTagHandler +protected: + // Adds text to the output. + // This is called from Parse() and must be overriden in derived classes. + // txt is not guaranteed to be only one word. It is largest continuous part of text + // (= not broken by tags) + // NOTE : using char* because of speed improvements + virtual void AddText(const char* txt) = 0; + // Adds tag and proceeds it. Parse() may (and usually is) called from this method. + // This is called from Parse() and may be overriden. + // Default behavior is that it looks for proper handler in m_Handlers. The tag is + // ignored if no hander is found. + // Derived class is *responsible* for filling in m_Handlers table. + virtual void AddTag(const wxHtmlTag& tag); + +protected: + // source being parsed + wxString m_Source; + + // tags cache, used during parsing. + wxHtmlTagsCache *m_Cache; + wxHashTable m_HandlersHash; + + // handlers that handle particular tags. The table is accessed by + // key = tag's name. + // This attribute MUST be filled by derived class otherwise it would + // be empty and no tags would be recognized + // (see wxHtmlWinParser for details about filling it) + // m_HandlersHash is for random access based on knowledge of tag name (BR, P, etc.) + // it may (and often does) contain more references to one object + // m_HandlersList is list of all handlers and it is guaranteed to contain + // only one reference to each handler instance. + wxList m_HandlersList; + + // class for opening files (file system) + wxFileSystem *m_FS; + // handlers stack used by PushTagHandler and PopTagHandler + wxList *m_HandlersStack; }; @@ -149,34 +152,35 @@ class WXDLLEXPORT wxHtmlTagHandler : public wxObject { DECLARE_ABSTRACT_CLASS(wxHtmlTagHandler) - protected: - wxHtmlParser *m_Parser; +public: + wxHtmlTagHandler() : wxObject () { m_Parser = NULL; } - public: - wxHtmlTagHandler() : wxObject () {m_Parser = NULL;}; - - virtual void SetParser(wxHtmlParser *parser) {m_Parser = parser;} - // Sets the parser. - // NOTE : each _instance_ of handler is guaranteed to be called - // only by one parser. This means you don't have to care about - // reentrancy. - - virtual wxString GetSupportedTags() = 0; - // Returns list of supported tags. The list is in uppercase and - // tags are delimited by ','. - // Example : "I,B,FONT,P" - // is capable of handling italic, bold, font and paragraph tags - - virtual bool HandleTag(const wxHtmlTag& tag) = 0; - // This is hadling core method. It does all the Steps 1-3. - // To process step 2, you can call ParseInner() - // returned value : TRUE if it called ParseInner(), - // FALSE etherwise + // Sets the parser. + // NOTE : each _instance_ of handler is guaranteed to be called + // only by one parser. This means you don't have to care about + // reentrancy. + virtual void SetParser(wxHtmlParser *parser) + { m_Parser = parser; } - protected: - void ParseInner(const wxHtmlTag& tag) {m_Parser->DoParsing(tag.GetBeginPos(), tag.GetEndPos1());} - // parses input between beginning and ending tag. - // m_Parser must be set. + // Returns list of supported tags. The list is in uppercase and + // tags are delimited by ','. + // Example : "I,B,FONT,P" + // is capable of handling italic, bold, font and paragraph tags + virtual wxString GetSupportedTags() = 0; + + // This is hadling core method. It does all the Steps 1-3. + // To process step 2, you can call ParseInner() + // returned value : TRUE if it called ParseInner(), + // FALSE etherwise + virtual bool HandleTag(const wxHtmlTag& tag) = 0; + +protected: + // parses input between beginning and ending tag. + // m_Parser must be set. + void ParseInner(const wxHtmlTag& tag) + { m_Parser->DoParsing(tag.GetBeginPos(), tag.GetEndPos1()); } + + wxHtmlParser *m_Parser; }; diff --git a/src/html/htmlpars.cpp b/src/html/htmlpars.cpp index 17fb0afb1c..ab88ab7d46 100644 --- a/src/html/htmlpars.cpp +++ b/src/html/htmlpars.cpp @@ -51,24 +51,23 @@ wxObject* wxHtmlParser::Parse(const wxString& source) return result; } - - void wxHtmlParser::InitParser(const wxString& source) { - m_Source = source; - m_Cache = new wxHtmlTagsCache(m_Source); + SetSource(source); } - - - + void wxHtmlParser::DoneParser() { delete m_Cache; m_Cache = NULL; } - - +void wxHtmlParser::SetSource(const wxString& src) +{ + m_Source = src; + delete m_Cache; + m_Cache = new wxHtmlTagsCache(m_Source); +} void wxHtmlParser::DoParsing(int begin_pos, int end_pos) { @@ -117,8 +116,6 @@ void wxHtmlParser::DoParsing(int begin_pos, int end_pos) delete[] temp; } - - void wxHtmlParser::AddTag(const wxHtmlTag& tag) { wxHtmlTagHandler *h; @@ -134,8 +131,6 @@ void wxHtmlParser::AddTag(const wxHtmlTag& tag) } } - - void wxHtmlParser::AddTagHandler(wxHtmlTagHandler *handler) { wxString s(handler->GetSupportedTags()); @@ -150,8 +145,6 @@ void wxHtmlParser::AddTagHandler(wxHtmlTagHandler *handler) handler->SetParser(this); } - - void wxHtmlParser::PushTagHandler(wxHtmlTagHandler *handler, wxString tags) { wxStringTokenizer tokenizer(tags, ", "); @@ -173,8 +166,6 @@ void wxHtmlParser::PushTagHandler(wxHtmlTagHandler *handler, wxString tags) } } - - void wxHtmlParser::PopTagHandler() { wxNode *first; @@ -189,8 +180,6 @@ void wxHtmlParser::PopTagHandler() m_HandlersStack->DeleteNode(first); } - - wxHtmlParser::~wxHtmlParser() { if (m_HandlersStack) delete m_HandlersStack; @@ -199,8 +188,6 @@ wxHtmlParser::~wxHtmlParser() m_HandlersList.Clear(); } - - //----------------------------------------------------------------------------- // wxHtmlTagHandler //----------------------------------------------------------------------------- diff --git a/src/html/m_pre.cpp b/src/html/m_pre.cpp index 2cf0d2142c..a474a1ec38 100644 --- a/src/html/m_pre.cpp +++ b/src/html/m_pre.cpp @@ -33,82 +33,6 @@ FORCE_LINK_ME(m_pre) - -//----------------------------------------------------------------------------- -// wxHtmlCodeCell -//----------------------------------------------------------------------------- - -class wxHtmlPRECell : public wxHtmlCell -{ - private: - wxString** m_Text; - // list of wxString objects. - int m_LinesCnt; - // number of lines - int m_LineHeight; - // height of single line of text - - public: - wxHtmlPRECell(const wxString& s, wxDC& dc); - ~wxHtmlPRECell(); - void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2); -}; - - -wxHtmlPRECell::wxHtmlPRECell(const wxString& s, wxDC& dc) : wxHtmlCell() -{ - wxStringTokenizer tokenizer(s, "\n"); - wxString tmp; - long int x, z; - int i; - - m_LineHeight = dc.GetCharHeight(); - m_LinesCnt = 0; - m_Text = NULL; - m_Width = m_Height = 0; - - i = 0; - while (tokenizer.HasMoreTokens()) - { - if (i % 10 == 0) m_Text = (wxString**) realloc(m_Text, sizeof(wxString*) * (i + 10)); - tmp = tokenizer.NextToken(); - tmp.Replace(wxT("©"), wxT("(c)"), TRUE); - tmp.Replace(wxT(" "), wxT(" "), TRUE); - tmp.Replace(wxT("""), wxT("\""), TRUE); - tmp.Replace(wxT("<"), wxT("<"), TRUE); - tmp.Replace(wxT(">"), wxT(">"), TRUE); - tmp.Replace(wxT("&"), wxT("&"), TRUE); - tmp.Replace(wxT("\t"), wxT(" "), TRUE); - tmp.Replace(wxT("\r"), wxT(""), TRUE); - m_Text[i++] = new wxString(tmp); - - dc.GetTextExtent(tmp, &x, &z, &z); - if (x > m_Width) m_Width = x; - m_Height += m_LineHeight; - m_LinesCnt++; - } -} - - - -wxHtmlPRECell::~wxHtmlPRECell() -{ - for (int i = 0; i < m_LinesCnt; i++) delete m_Text[i]; - free(m_Text); -} - - -void wxHtmlPRECell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2) -{ - for (int i = 0; i < m_LinesCnt; i++) - dc.DrawText(*(m_Text[i]), x + m_PosX, y + m_PosY + m_LineHeight * i); - - wxHtmlCell::Draw(dc, x, y, view_y1, view_y2); -} - - - - //----------------------------------------------------------------------------- // The list handler: //----------------------------------------------------------------------------- @@ -126,11 +50,7 @@ TAG_HANDLER_BEGIN(PRE, "PRE") bold = m_WParser->GetFontBold(), fsize = m_WParser->GetFontSize(); - m_WParser->CloseContainer(); - c = m_WParser->OpenContainer(); - c->SetAlignHor(wxHTML_ALIGN_LEFT); - c->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_VERTICAL); - + c = m_WParser->GetContainer(); m_WParser->SetFontUnderlined(FALSE); m_WParser->SetFontBold(FALSE); m_WParser->SetFontItalic(FALSE); @@ -138,18 +58,27 @@ TAG_HANDLER_BEGIN(PRE, "PRE") m_WParser->SetFontSize(3); c->InsertCell(new wxHtmlFontCell(m_WParser->CreateCurrentFont())); - { - wxString cit; - wxEncodingConverter *encconv = m_WParser->GetEncodingConverter(); - cit = m_WParser->GetSource()->Mid(tag.GetBeginPos(), - tag.GetEndPos1() - tag.GetBeginPos()); - if (encconv) - c->InsertCell(new wxHtmlPRECell(encconv->Convert(cit), - *(m_WParser->GetDC()))); - else - c->InsertCell(new wxHtmlPRECell(cit, - *(m_WParser->GetDC()))); - } + m_WParser->CloseContainer(); + c = m_WParser->OpenContainer(); + c->SetAlignHor(wxHTML_ALIGN_LEFT); + + wxString src, srcMid; + + src = *m_WParser->GetSource(); + srcMid = src.Mid(tag.GetBeginPos(), + tag.GetEndPos1() - tag.GetBeginPos()); + srcMid.Replace(wxT("\t"), wxT(" ")); + srcMid.Replace(wxT(" "), wxT(" ")); + srcMid.Replace(wxT("\n"), wxT("
")); + + // It is safe to temporarily change the source being parsed, + // provided we restore the state back after parsing + m_Parser->SetSource(srcMid); + m_Parser->DoParsing(); + m_Parser->SetSource(src); + + m_WParser->CloseContainer(); + c = m_WParser->OpenContainer(); m_WParser->SetFontUnderlined(underlined); m_WParser->SetFontBold(bold); @@ -158,8 +87,6 @@ TAG_HANDLER_BEGIN(PRE, "PRE") m_WParser->SetFontSize(fsize); c->InsertCell(new wxHtmlFontCell(m_WParser->CreateCurrentFont())); - m_WParser->CloseContainer(); - m_WParser->OpenContainer(); return TRUE; }