// -*- C++ -*-
/*
* File: math_macro.h
* Purpose: Declaration of macro class for mathed
* Author: Alejandro Aguilar Sierra <[email protected]>
* Created: November 1996
* Description: WYSIWYG math macros
*
* Dependencies: Mathed
*
* Copyright: (c) 1996, 1997 Alejandro Aguilar Sierra
*
* Version: 0.2, Mathed & Lyx project.
*
* This code is under the GNU General Public Licence version 2 or later.
*/
#ifndef __MATH_MACRO__
#define __MATH_MACRO__
#ifdef __GNUG__
#pragma interface
#endif
#include "math_defs.h"
///
typedef MathParInset* MathParInsetP;
///
typedef LyxArrayBase *LyxArrayBaseP;
class MathMacroTemplate;
/// This class contains the data for a macro
class MathMacro: public MathParInset
{
public:
/// A macro can only be builded from an existing template
MathMacro(MathMacroTemplate *);
/// or from another macro.
MathMacro(MathMacro*);
///
~MathMacro();
///
void Draw(int, int);
///
void Metrics();
///
MathedInset *Clone();
///
void Write(FILE *);
///
void Write(LString &);
///
bool setArgumentIdx(int);
///
int getArgumentIdx();
///
int getMaxArgumentIdx();
///
int GetColumns();
///
void GetXY(int&, int&) const;
///
void SetFocus(int, int);
///
LyxArrayBase *GetData();
///
MathedRowSt *getRowSt() const { return args[idx].row; }
///
void SetData(LyxArrayBase *);
///
MathedTextCodes getTCode() { return tcode; }
///
bool Permit(short);
private:
///
MathMacroTemplate *tmplate;
///
struct MacroArgumentBase {
/// Position of the macro
int x, y;
///
MathedRowSt *row;
///
LyxArrayBase *array;
///
MacroArgumentBase() { x = y = 0; array = 0; row = 0; }
} *args;
///
int idx;
///
int nargs;
///
MathedTextCodes tcode;
///
friend class MathMacroTemplate;
};
/// An argument
class MathMacroArgument: public MathParInset
{
public:
///
MathMacroArgument() { expnd_mode = false; number = 1; SetType(LM_OT_MACRO_ARG); }
///
MathMacroArgument(int);
///
~MathMacroArgument() { fprintf(stderr, "help, destroyme!\n"); }
///
MathedInset *Clone() { return this; }
///
void Metrics();
///
void Draw(int x, int baseline);
///
void Write(FILE*);
///
void Write(LString &);
///
void setNumber(int n) { number = n; }
/// Is expanded or not
void setExpand(bool e) { expnd_mode = e; }
/// Is expanded or not
bool getExpand() { return expnd_mode; }
private:
///
bool expnd_mode;
///
int number;
};
/// This class contains the macro definition
class MathMacroTemplate: public MathParInset
{
public:
/// A template constructor needs all the data
MathMacroTemplate(char const*, int na=0, int f=0);
///
~MathMacroTemplate();
///
void Draw(int, int);
///
void Metrics();
///
void WriteDef(FILE *);
///
void WriteDef(LString &);
/// useful for special insets
void setTCode(MathedTextCodes t) { tcode = t; }
///
MathedTextCodes getTCode() { return tcode; }
///
void setArgument(LyxArrayBase *, int i=0);
/// Number of arguments
int getNoArgs() { return nargs; }
///
void GetMacroXY(int, int&, int&) const;
///
MathParInset *getMacroPar(int) const;
///
void SetMacroFocus(int&, int, int);
///
void setEditMode(bool);
/// Replace the appropriate arguments with a specific macro's data
void update(MathMacro* m=0);
private:
///
short flags;
///
MathedTextCodes tcode;
///
MathMacroArgument *args;
///
int nargs;
///
friend class MathMacro;
};
///
typedef MathMacro *MathMacroP;
///
typedef MathMacroTemplate *MathMacroTemplateP;
///
class MathMacroTable
{
public:
///
MathMacroTable(int);
///
~MathMacroTable();
///
void addTemplate(MathMacroTemplate *);
///
MathMacro *getMacro(char const*) const;
///
MathMacroTemplate *getTemplate(char const*) const;
///
void builtinMacros();
///
static MathMacroTable mathMTable;
///
static bool built;
private:
///
const int max_macros;
///
int num_macros;
///
MathMacroTemplateP *macro_table;
};
/*----------------------- inlines -------------------------*/
inline
bool MathMacro::setArgumentIdx(int i)
{
if (i>=0 && i<nargs) {
idx = i;
return true;
} else
return false;
}
inline
int MathMacro::getArgumentIdx()
{
return idx;
}
inline
int MathMacro::getMaxArgumentIdx()
{
return nargs-1;
}
inline
LyxArrayBase *MathMacro::GetData()
{
return args[idx].array;
}
inline
void MathMacro::SetData(LyxArrayBase *a)
{
args[idx].array = a;
}
inline
MathMacro *MathMacroTable::getMacro(char const* name) const
{
MathMacroTemplate *mt = getTemplate(name);
return (mt) ? new MathMacro(mt): 0;
}
#endif
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