src/mathed/formula.h

   1 // -*- C++ -*-
   2 /*
   3  *  File:        formula.h
   4  *  Purpose:     Declaration of formula inset
   5  *  Author:      Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
   6  *  Created:     January 1996
   7  *  Description: Allows the edition of math paragraphs inside Lyx.
   8  *
   9  *  Copyright: (c) 1996, Alejandro Aguilar Sierra
  10  *
  11  *  Version: 0.4, Lyx project.
  12  *
  13  *   You are free to use and modify this code under the terms of
  14  *   the GNU General Public Licence version 2 or later.
  15  */
  16
  17 #ifndef _INSET_FORMULA_H
  18 #define _INSET_FORMULA_H
  19
  20 #ifdef __GNUG__
  21 #pragma interface
  22 #endif
  23
  24 #include "definitions.h"
  25 #include "insets/lyxinset.h"
  26
  27
  28 class MathParInset;
  29 class MathedCursor;
  30
  31 ///
  32 class InsetFormula: public UpdatableInset {
  33 public:
  34         ///
  35         InsetFormula(bool display=false);
  36         ///
  37         InsetFormula(MathParInset*);
  38         ///
  39         ~InsetFormula();
  40         ///
  41         int Ascent(LyXFont const &font) const;
  42         ///
  43         int Descent(LyXFont const &font) const;
  44         ///
  45         int Width(LyXFont const &font) const;
  46         ///
  47         void Draw(LyXFont font, LyXScreen &scr, int baseline, float &x);
  48         ///
  49         void Write(FILE *file);
  50         ///
  51         void Read(LyXLex &lex);
  52         ///
  53         int Latex(FILE *file, signed char fragile);
  54         ///
  55         int Latex(string &file, signed char fragile);
  56         ///
  57         int Linuxdoc(string &file);
  58         ///
  59         int DocBook(string &file);
  60         ///
  61         void Validate(LaTeXFeatures &) const;
  62         ///
  63         Inset* Clone();
  64         ///
  65         Inset::Code LyxCode() const { return Inset::MATH_CODE; }
  66         ///
  67         LyXFont ConvertFont(LyXFont font) {
  68                 // We have already discussed what was here
  69                 font.setLatex(LyXFont::OFF);
  70                 return font;
  71         }
  72
  73         /// what appears in the minibuffer when opening
  74         char const* EditMessage() {return _("Math editor mode");}
  75         ///
  76         void Edit(int x, int y);
  77         ///
  78         bool Display() const { return (disp_flag) ? true: false; }
  79         ///
  80         void SetDisplay(bool);
  81         ///
  82         void ToggleInsetCursor();
  83         ///
  84         void ShowInsetCursor();
  85         ///
  86         void HideInsetCursor();
  87         ///
  88         void GetCursorPos(int&, int&);
  89         ///
  90         void ToggleInsetSelection();
  91         ///
  92         void InsetButtonPress(int x, int y, int button);
  93         ///
  94         void InsetButtonRelease(int x, int y, int button);
  95         ///
  96         void InsetKeyPress(XKeyEvent *ev);
  97         ///
  98         void InsetMotionNotify(int x, int y, int state);
  99         ///
 100         void InsetUnlock();
 101
 102         ///  To allow transparent use of math editing functions
 103         virtual bool LocalDispatch(int, char const*);
 104
 105         ///
 106         void InsertSymbol(char const*);
 107         ///
 108         bool SetNumber(bool);
 109         ///
 110         int GetNumberOfLabels() const;
 111         ///
 112         string getLabel(int) const;
 113
 114 protected:
 115         void UpdateLocal();
 116         MathParInset* par;
 117         static MathedCursor* mathcursor;
 118
 119 private:
 120         bool disp_flag;
 121         //char *label;
 122         string label;
 123 };
 124
 125
 126 // If a mathinset exist at cursor pos, just lock it.
 127 // Otherwise create a new one, and lock it.
 128 bool OpenMathInset(Buffer *);
 129
 130 #endif
 131