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// @(#)root/html:$Id: TDocDirective.h 23799 2008-05-12 13:10:34Z axel $
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// Author: Axel Naumann 2007-01-25
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/*************************************************************************
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* Copyright (C) 1995-2007, Rene Brun and Fons Rademakers. *
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* All rights reserved. *
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* *
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* For the licensing terms see $ROOTSYS/LICENSE. *
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* For the list of contributors see $ROOTSYS/README/CREDITS. *
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*************************************************************************/
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#ifndef ROOT_TDocDirective
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#define ROOT_TDocDirective
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////////////////////////////////////////////////////////////////////////////
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// //
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// TDocDirective //
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// //
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// Special treatment of comments, like HTML source, a macro, or latex. //
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// //
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////////////////////////////////////////////////////////////////////////////
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#ifndef ROOT_TNamed
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#include "TNamed.h"
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#endif
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class TClass;
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class TDocParser;
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class TDocOutput;
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class THtml;
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class TLatex;
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class TMacro;
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class TVirtualPad;
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class TDocDirective: public TNamed {
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protected:
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TDocParser* fDocParser; // parser invoking this handler
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THtml* fHtml; // parser's THtml object
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TDocOutput* fDocOutput; // parser invoking this handler
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TString fParameters; // parameters to the directive
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Int_t fCounter; // counter to generate unique names, -1 to ignore
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virtual void AddParameter(const TString& /*name*/, const char* /*value*/ = 0) {}
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TDocDirective() {}
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TDocDirective(const char* name): TNamed(name, ""), fDocParser(0), fCounter(-1) {};
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virtual ~TDocDirective() {}
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const char* GetName() const { return TNamed::GetName(); }
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void GetName(TString& name) const;
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TDocParser* GetDocParser() const { return fDocParser; }
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TDocOutput* GetDocOutput() const { return fDocOutput; }
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THtml* GetHtml() const { return fHtml; }
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const char* GetOutputDir() const;
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void SetParser(TDocParser* parser);
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void SetParameters(const char* params);
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void SetTag(const char* tag) { SetTitle(tag); }
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void SetCounter(Int_t count) { fCounter = count; }
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virtual void DeleteOutputFiles(const char* ext) const;
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public:
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// get the tag ending this directive
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virtual const char* GetEndTag() const = 0;
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// add a line to the directive's text
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virtual void AddLine(const TSubString& line) = 0;
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// retrieve the result (replacement) of the directive; return false if invalid
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virtual Bool_t GetResult(TString& result) = 0;
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// Delete output for the parser's current class or module.
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virtual void DeleteOutput() const {}
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friend class TDocParser;
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ClassDef(TDocDirective, 0); // THtml directive handler
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};
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class TDocHtmlDirective: public TDocDirective {
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private:
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TString fText; // HTML text to be kept
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Bool_t fVerbatim; // whether we are in a <pre></pre> block
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public:
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TDocHtmlDirective(): TDocDirective("HTML"), fVerbatim(kFALSE) {}
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virtual ~TDocHtmlDirective() {}
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virtual void AddLine(const TSubString& line);
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virtual const char* GetEndTag() const { return "end_html"; }
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virtual Bool_t GetResult(TString& result);
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ClassDef(TDocHtmlDirective, 0); // Handler for "Begin_Html"/"End_Html" for raw HTML in documentation comments
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};
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class TDocMacroDirective: public TDocDirective {
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private:
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TMacro* fMacro; // macro to be executed
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Bool_t fNeedGraphics; // if set, we cannot switch to batch mode
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Bool_t fShowSource; // whether a source tab should be created
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Bool_t fIsFilename; // whether the directive is a failename to be executed
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virtual void AddParameter(const TString& name, const char* value = 0);
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public:
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TDocMacroDirective():
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TDocDirective("MACRO"), fMacro(0), fNeedGraphics(kFALSE),
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fShowSource(kFALSE), fIsFilename(kTRUE) {};
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virtual ~TDocMacroDirective();
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virtual void AddLine(const TSubString& line);
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virtual const char* GetEndTag() const { return "end_macro"; }
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virtual Bool_t GetResult(TString& result);
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// Delete output for the parser's current class or module.
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virtual void DeleteOutput() const { DeleteOutputFiles(".gif"); }
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ClassDef(TDocMacroDirective, 0); // Handler for "Begin_Macro"/"End_Macro" for code that is executed and that can generate an image for documentation
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};
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class TDocLatexDirective: public TDocDirective {
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protected:
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TMacro* fLatex; // collection of lines
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Int_t fFontSize; // fontsize for current latex block, in pixels
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TString fSeparator; // column separator, often "="
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Bool_t fSepIsRegexp; // whether fSeparator is a regexp expression
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TString fAlignment; // column alignment: 'l' for justify left, 'c' for center, 'r' for right
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TVirtualPad* fBBCanvas; // canvas for bounding box determination
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virtual void CreateLatex(const char* filename);
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virtual void AddParameter(const TString& name, const char* value = 0);
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virtual void GetBoundingBox(TLatex& latex, const char* text, Float_t& width, Float_t& height);
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public:
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TDocLatexDirective():
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TDocDirective("LATEX"), fLatex(0), fFontSize(16),
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fSepIsRegexp(kFALSE), fBBCanvas(0) {};
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virtual ~TDocLatexDirective();
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virtual void AddLine(const TSubString& line);
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virtual const char* GetEndTag() const {return "end_latex";}
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const char* GetAlignment() const {return fAlignment;}
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const char* GetSeparator() const {return fSeparator;}
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Bool_t SeparatorIsRegexp() const {return fSepIsRegexp;}
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Int_t GetFontSize() const {return fFontSize;}
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TList* GetListOfLines() const;
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virtual Bool_t GetResult(TString& result);
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// Delete output for the parser's current class or module.
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virtual void DeleteOutput() const { DeleteOutputFiles(".gif"); }
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ClassDef(TDocLatexDirective, 0); // Handler for "Begin_Latex"/"End_Latex" to generate an image from latex
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};
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#endif // ROOT_TDocDirective
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