Quelle insetcommand.C Sprache: C

/* This file is part of
* ======================================================
*
*           LyX, The Document Processor
*
*     Copyright (C) 1995 Matthias Ettrich
*          Copyright (C) 1995-1998 The LyX Team.
*
*======================================================*/

#include <config.h>

#ifdef __GNUG__
#pragma implementation
#endif

#include "insetcommand.h"
#include "lyxdraw.h"
#include "error.h"

// $Id: insetcommand.C,v 1.1.1.1 1998/04/20 21:14:48 larsbj Exp $

#if !defined(lint) && !defined(WITH_WARNINGS)
static char vcid[] = "$Id: insetcommand.C,v 1.1.1.1 1998/04/20 21:14:48 larsbj Exp $";
#endif /* lint */

InsetCommand::InsetCommand()
{
}

InsetCommand::InsetCommand(LString const & cmd, LString const & arg,
      LString const & opt)
: command(cmd), options(opt), contents(arg)
{
}

InsetCommand::~InsetCommand()
{
}

int InsetCommand::Ascent(LyXFont const&font) const
{
LyXFont f = font;
f.decSize();
return f.maxAscent() + 3;
}

int InsetCommand::Descent(LyXFont const&font) const
{
LyXFont f = font;
f.decSize();
return f.maxDescent() + 3;
}

int InsetCommand::Width(LyXFont const&font) const
{
LyXFont f = font;
f.decSize();
LString s = getScreenLabel();
return 10 + f.stringWidth(s);
}

void InsetCommand::Draw(LyXFont font, LyXScreen &scr,
        int baseline, float &x)
{
// Draw it as a box with the LaTeX text
x += 3;

//scr.drawFilledRectangle(int(x), baseline - Ascent(font) + 1,
//      Width(font) - 2, Ascent(font) + Descent(font)-2,
//      FL_GRAY80);
scr.fillRectangle(gc_lighted,
     int(x), baseline - Ascent(font) + 1,
     Width(font) - 6,
     Ascent(font) + Descent(font)-2);
        // Tell whether this slows down the drawing  (ale)
// lets draw editable and non-editable insets differently
        if (Editable()) {
  int y = baseline - Ascent(font)+1, w = Width(font)-6,
   h = (Ascent(font)+Descent(font)-2);
  scr.drawFrame(FL_UP_FRAME, int(x), y, w, h, FL_BLACK, -1);
} else {
  //scr.drawRectangle(int(x), baseline - Ascent(font)+1,
  //      Width(font)-2, Ascent(font)+Descent(font)-2,
  //      FL_BLACK);
  scr.drawRectangle(gc_note_frame,
      int(x), baseline - Ascent(font)+1,
      Width(font)-6,
      Ascent(font)+Descent(font)-2);
}
        LString s = getScreenLabel();
        LyXFont f = font;
f.decSize();
f.setColor(LyXFont::NONE);
f.setLatex(LyXFont::OFF);
scr.drawString(f, s, baseline, int(x+2));

x +=  Width(font) - 3;
}

// In lyxf3 this will be just LaTeX
void InsetCommand::Write(FILE *file)
{
fprintf(file, "LatexCommand %s\n", getCommand().c_str());
}

void InsetCommand::scanCommand(LString const &cmd)
{
LString tcommand, toptions, tcontents;

if (cmd.empty()) return;

enum { WS, Command, Option, Content } state = WS;

// Used to handle things like \command[foo[bar]]{foo{bar}}
int nestdepth = 0;

for (int i=0; i<cmd.length(); i++) {
  char c = cmd[i];
  if ((state==Command && c == ' ') ||
      (state==Command && c == '[') ||
      (state==Command && c == '{')) {
   state = WS;
  }
  if ((state==Option  && c == ']') ||
      (state==Content && c == '}')) {
   if (nestdepth==0) {
    state = WS;
   } else {
    nestdepth--;
   }
  }
  if ((state==Option  && c == '[') ||
      (state==Content && c == '{')) {
       nestdepth++;
  }
  switch (state) {
  case Command: tcommand += c; break;
  case Option:  toptions += c; break;
  case Content: tcontents += c; break;
  case WS:
   if (c == '\\') {
    state = Command;
   } else if (c == '[') {
    state = Option;
    nestdepth = 0; // Just to be sure
   } else if (c == '{') {
    state = Content;
    nestdepth = 0; // Just to be sure
   }
   break;
  }
}

// Don't mess with this.
if (!tcommand.empty()) command = tcommand;
if (!toptions.empty()) options = toptions;
if (!tcontents.empty()) setContents(tcontents);
                 // setContents is overloaded in InsetInclude

if (lyxerr.debugging(Error::LEX_PARSER))
      lyxerr.print("Command <" + cmd
      + "> == <" + getCommand()
      + "> == <" + getCmdName()
      + '|' + getContents()
      + '|' + getOptions() +'>');
}

// This function will not be necessary when lyx3
void InsetCommand::Read(LyXLex &lex)
{
if (lex.EatLine()) {
  LString t = lex.GetString();
  scanCommand(t);
} else
  lex.printError("InsetCommand: Parse error: `$$Token'");
}

int InsetCommand::Latex(FILE *file, signed char /*fragile*/)
{
fprintf(file, "%s", getCommand().c_str());
return 0;
}

int InsetCommand::Latex(LString &file, signed char /*fragile*/)
{
file += getCommand();
return 0;
}

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

Inset* InsetCommand::Clone()
{
InsetCommand *result = new InsetCommand(command, contents, options);
return result;
}

LString InsetCommand::getCommand() const
{
LString s;
if (!command.empty()) s += "\\"+command;
if (!options.empty()) s += "["+options+']';
if (!contents.empty()) s += "{"+contents+'}';
return s;
}

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