mirror of
https://git.lyx.org/repos/lyx.git
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08c784de22
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@2450 a592a061-630c-0410-9148-cb99ea01b6c8
371 lines
7.1 KiB
C
371 lines
7.1 KiB
C
/*
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* File: formula.C
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* Purpose: Implementation of formula inset
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* Author: Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
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* Created: January 1996
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* Description: Allows the edition of math paragraphs inside Lyx.
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*
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* Copyright: 1996-1998 Alejandro Aguilar Sierra
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*
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* Version: 0.4, Lyx project.
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*
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* You are free to use and modify this code under the terms of
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* the GNU General Public Licence version 2 or later.
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*/
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#ifdef __GNUG__
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#pragma implementation
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#endif
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#include <config.h>
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#include <fstream>
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#include "formula.h"
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#include "commandtags.h"
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#include "math_cursor.h"
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#include "math_parser.h"
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#include "lyx_main.h"
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#include "BufferView.h"
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#include "gettext.h"
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#include "debug.h"
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#include "lyx_gui_misc.h"
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#include "support/LOstream.h"
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#include "support/lyxlib.h"
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#include "support/syscall.h"
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#include "support/lstrings.h"
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#include "LyXView.h"
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#include "Painter.h"
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#include "lyxrc.h"
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#include "math_matrixinset.h"
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#include "mathed/support.h"
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using std::ostream;
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using std::ifstream;
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using std::istream;
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using std::pair;
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using std::endl;
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using std::vector;
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extern char const * latex_mathenv[];
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extern MathCursor * mathcursor;
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InsetFormula::InsetFormula()
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: par_(new MathMatrixInset)
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{}
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InsetFormula::InsetFormula(const InsetFormula & f)
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: InsetFormulaBase(f), par_(static_cast<MathMatrixInset *>(f.par_->clone()))
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{}
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InsetFormula::InsetFormula(MathInsetTypes t)
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: par_(new MathMatrixInset(t))
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{}
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InsetFormula::InsetFormula(string const & s)
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: par_(mathed_parse_normal(s))
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{
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metrics();
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}
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InsetFormula::~InsetFormula()
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{
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delete par_;
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}
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Inset * InsetFormula::clone(Buffer const &, bool) const
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{
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return new InsetFormula(*this);
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}
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void InsetFormula::write(ostream & os) const
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{
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os << "Formula ";
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latex(os, false, false);
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}
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int InsetFormula::latex(ostream & os, bool fragile, bool) const
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{
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par_->write(os, fragile);
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return 1;
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}
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int InsetFormula::ascii(ostream & os, int) const
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{
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par_->write(os, false);
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return 1;
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}
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int InsetFormula::linuxdoc(ostream & os) const
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{
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return ascii(os, 0);
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}
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int InsetFormula::docBook(ostream & os) const
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{
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return ascii(os, 0);
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}
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void InsetFormula::read(LyXLex & lex)
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{
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par(mathed_parse_normal(lex));
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metrics();
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}
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void InsetFormula::draw(BufferView * bv, LyXFont const &,
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int y, float & xx, bool) const
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{
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int x = int(xx) - 1;
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y -= 2;
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MathInset::workwidth = bv->workWidth();
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Painter & pain = bv->painter();
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metrics();
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int w = par_->width();
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int h = par_->height();
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int a = par_->ascent();
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pain.fillRectangle(x, y - a, w, h, LColor::mathbg);
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if (mathcursor && mathcursor->formula() == this) {
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mathcursor->drawSelection(pain);
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pain.rectangle(x, y - a, w, h, LColor::mathframe);
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}
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par_->draw(pain, x, y);
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xx += par_->width();
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setCursorVisible(false);
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}
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void InsetFormula::metrics() const
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{
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par_->metrics(display() ? LM_ST_DISPLAY : LM_ST_TEXT);
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}
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vector<string> const InsetFormula::getLabelList() const
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{
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return par_->getLabelList();
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}
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UpdatableInset::RESULT
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InsetFormula::localDispatch(BufferView * bv, kb_action action,
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string const & arg)
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{
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RESULT result = DISPATCHED;
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switch (action) {
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case LFUN_BREAKLINE:
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bv->lockedInsetStoreUndo(Undo::INSERT);
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mathcursor->breakLine();
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mathcursor->normalize();
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updateLocal(bv, true);
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break;
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case LFUN_MATH_NUMBER:
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{
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//lyxerr << "toggling all numbers\n";
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if (display()) {
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bv->lockedInsetStoreUndo(Undo::INSERT);
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bool old = par_->numberedType();
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for (int row = 0; row < par_->nrows(); ++row)
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par_->numbered(row, !old);
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bv->owner()->message(old ? _("No number") : _("Number"));
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updateLocal(bv, true);
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}
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break;
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}
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case LFUN_MATH_NONUMBER:
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{
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//lyxerr << "toggling line number\n";
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if (display()) {
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bv->lockedInsetStoreUndo(Undo::INSERT);
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int row = mathcursor->row();
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bool old = par_->numbered(row);
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bv->owner()->message(old ? _("No number") : _("Number"));
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par_->numbered(row, !old);
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updateLocal(bv, true);
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}
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break;
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}
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case LFUN_INSERT_LABEL:
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{
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bv->lockedInsetStoreUndo(Undo::INSERT);
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int row = mathcursor->row();
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string old_label = par_->label(row);
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string new_label = arg;
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if (new_label.empty()) {
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string const default_label =
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(lyxrc.label_init_length >= 0) ? "eq:" : "";
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pair<bool, string> const res = old_label.empty()
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? askForText(_("Enter new label to insert:"), default_label)
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: askForText(_("Enter label:"), old_label);
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lyxerr << "res: " << res.first << " - '" << res.second << "'\n";
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if (!res.first)
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break;
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new_label = frontStrip(strip(res.second));
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}
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//if (new_label == old_label)
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// break; // Nothing to do
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if (!new_label.empty()) {
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lyxerr << "setting label to '" << new_label << "'\n";
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par_->numbered(row, true);
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}
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if (!new_label.empty() && bv->ChangeRefsIfUnique(old_label, new_label))
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bv->redraw();
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par_->label(row, new_label);
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updateLocal(bv, true);
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break;
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}
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case LFUN_MATH_EXTERN:
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bv->lockedInsetStoreUndo(Undo::EDIT);
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handleExtern(arg, bv);
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updateLocal(bv, true);
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break;
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case LFUN_MATH_MUTATE:
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{
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bv->lockedInsetStoreUndo(Undo::EDIT);
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int x;
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int y;
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mathcursor->getPos(x, y);
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par_->mutate(arg);
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mathcursor->setPos(x, y);
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mathcursor->normalize();
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updateLocal(bv, true);
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break;
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}
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case LFUN_MATH_DISPLAY:
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{
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int x;
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int y;
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mathcursor->getPos(x, y);
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if (par_->getType() == LM_OT_SIMPLE)
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par_->mutate(LM_OT_EQUATION);
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else
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par_->mutate(LM_OT_SIMPLE);
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mathcursor->setPos(x, y);
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mathcursor->normalize();
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updateLocal(bv, true);
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break;
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}
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case LFUN_PASTESELECTION:
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{
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string const clip = bv->getClipboard();
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if (!clip.empty())
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par(mathed_parse_normal(clip));
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break;
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}
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default:
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result = InsetFormulaBase::localDispatch(bv, action, arg);
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}
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return result;
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}
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void InsetFormula::handleExtern(const string & arg, BufferView *)
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{
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//string outfile = lyx::tempName("maple.out");
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string outfile = "/tmp/lyx2" + arg + ".out";
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ostringstream os;
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par_->writeNormal(os);
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string code = os.str().c_str();
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string script = "lyx2" + arg + " '" + code + "' " + outfile;
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lyxerr << "calling: " << script << endl;
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Systemcalls cmd(Systemcalls::System, script, 0);
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ifstream is(outfile.c_str());
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par(mathed_parse_normal(is));
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metrics();
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}
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bool InsetFormula::display() const
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{
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return par_->getType() != LM_OT_SIMPLE;
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}
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MathInset const * InsetFormula::par() const
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{
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return par_;
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}
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void InsetFormula::par(MathMatrixInset * p)
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{
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delete par_;
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par_ = p ? static_cast<MathMatrixInset *>(p) : new MathMatrixInset;
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}
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Inset::Code InsetFormula::lyxCode() const
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{
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return Inset::MATH_CODE;
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}
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void InsetFormula::validate(LaTeXFeatures & features) const
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{
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par_->validate(features);
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}
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bool InsetFormula::insetAllowed(Inset::Code code) const
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{
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return code == Inset::LABEL_CODE;
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}
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int InsetFormula::ascent(BufferView *, LyXFont const &) const
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{
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return par_->ascent() + 1;
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}
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int InsetFormula::descent(BufferView *, LyXFont const &) const
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{
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return par_->descent() + 1;
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}
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int InsetFormula::width(BufferView *, LyXFont const &) const
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{
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metrics();
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return par_->width();
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}
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MathInsetTypes InsetFormula::getType() const
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{
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return par_->getType();;
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}
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