Quelle formulamacro.C Sprache: C

/*
*  File:        formula.h
*  Purpose:     Implementation of formula inset
*  Author:      Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
*  Created:     January 1996
*  Description: Allows the edition of math paragraphs inside Lyx.
*
*  Copyright: (c) 1996, 1997 Alejandro Aguilar Sierra
*
*  Version: 0.4, Lyx project.
*
*   You are free to use and modify this code under the terms of
*   the GNU General Public Licence version 2 or later.
*/

#include <config.h>
#include <stdlib.h>

#ifdef __GNUG__
#pragma implementation "formulamacro.h"
#endif

#include "formulamacro.h"
#include "commandtags.h"
#include "math_cursor.h"
#include "math_parser.h"
#include "math_macro.h"
#include "lyx_main.h"
#include "bufferlist.h"
#include "lyx_cb.h"
#include "BufferView.h"
#include "lyxscreen.h"
#include "lyxdraw.h"
#include "gettext.h"

InsetFormulaMacro::InsetFormulaMacro():
        InsetFormula(true)
{
    tmacro = 0;
    opened = false;
}

InsetFormulaMacro::InsetFormulaMacro(LString nm, int na, bool /*e*/):
        InsetFormula(true), name(nm)
{
    tmacro = MathMacroTable::mathMTable.getTemplate(name.c_str());
    if (!tmacro) {
tmacro = new MathMacroTemplate(name.c_str(), na);
MathMacroTable::mathMTable.addTemplate(tmacro);
    }
    opened = false;
}

InsetFormulaMacro::~InsetFormulaMacro()
{
    par = 0;
}

Inset* InsetFormulaMacro::Clone()
{
   InsetFormulaMacro* f = new InsetFormulaMacro(name);
   return (Inset*)f;
}

void InsetFormulaMacro::Write(FILE *file)
{
    fprintf(file, "FormulaMacro ");
    Latex(file, 0);
}

int InsetFormulaMacro::Latex(FILE *file, signed char /*fragile*/)
{
    int ret = 1;
    tmacro->WriteDef(file);
    return ret;
}

int InsetFormulaMacro::Latex(LString &file, signed char /*fragile*/)
{
    int ret = 1;
    tmacro->WriteDef(file);
    return ret;
}

int InsetFormulaMacro::Linuxdoc(LString &/*file*/)
{
    return 0;
}

void InsetFormulaMacro::Read(LyXLex &lex)
{
    FILE *file = lex.getFile();
    mathed_parser_file(file, lex.GetLineNo());
    mathed_parse(0, 0, (MathParInset **)&tmacro);

    // Update line number
    lex.setLineNo(mathed_parser_lineno());

    MathMacroTable::mathMTable.addTemplate(tmacro);
    name = tmacro->GetName();
    par = tmacro;
}

int InsetFormulaMacro::Ascent(LyXFont const &f) const
{
    if (opened) {
tmacro->update();
return InsetFormula::Ascent(f);
    }
    return f.maxAscent()+3;
}

int InsetFormulaMacro::Descent(LyXFont const &f) const
{
    if (opened) {
tmacro->update();
return InsetFormula::Descent(f);
    }
    return f.maxDescent()+1;
}

int InsetFormulaMacro::Width(LyXFont const &f) const
{
    if (opened) {
tmacro->update();
return InsetFormula::Width(f);
    }
    LString ilabel(_("Macro: "));
    ilabel += name;
    return 6 + f.stringWidth(ilabel);
}

void InsetFormulaMacro::Draw(LyXFont font, LyXScreen &scr,
        int baseline, float &x)
{
    tmacro->update();
    if (opened) {
tmacro->setEditMode(true);
InsetFormula::Draw(font, scr, baseline, x);
tmacro->setEditMode(false);
    } else {
font.setColor(LyXFont::MATH);

int y=baseline - Ascent(font)+1;
int w=Width(font) - 2, h=(Ascent(font)+Descent(font)-2);

scr.fillRectangle(gc_lighted, int(x), y,  w,  h);
scr.drawFrame(FL_UP_FRAME, int(x), y, w, h, FL_BLACK, -1);

        LString s(_("Macro: "));
        s += name;
        scr.drawString(font, s, baseline, int(x +2));
x +=  Width(font) - 1;
    }
}

void InsetFormulaMacro::Edit(int x, int y)
{
    opened = true;
    par = (MathParInset*)tmacro->Clone();
    InsetFormula::Edit(x, y);
}


void InsetFormulaMacro::InsetUnlock()
{
    opened = false;
    LyxArrayBase *tarray = tmacro->GetData();
    MathedIter it(tarray);
    it.Clear();
    tmacro->SetData(par->GetData());
    tmacro->setEditMode(false);
    InsetFormula::InsetUnlock();
}

bool InsetFormulaMacro::LocalDispatch(int action, char const *arg)
{
    if (action==LFUN_MATH_MACROARG) {
int i = atoi(arg) - 1;
if (i>=0 && i<tmacro->getNoArgs()) {
     mathcursor->Insert(tmacro->getMacroPar(i), LM_TC_INSET);
     InsetFormula::UpdateLocal();
}

return true;
    }
    tmacro->setEditMode(true);
    tmacro->Metrics();
    bool result = InsetFormula::LocalDispatch(action, arg);
    tmacro->setEditMode(false);

    return result;
}

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