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lyx_mirror/src/mathed/formula.C
Lars Gullik Bjønnes a7e691445d mathed20.diff 
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@1516 a592a061-630c-0410-9148-cb99ea01b6c8
2001-02-14 19:35:25 +00:00

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/*
* File: formula.C
* 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: 1996-1998 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 "Lsstream.h"
#ifdef __GNUG__
#pragma implementation "formula.h"
#endif
#include "formula.h"
#include "commandtags.h"
#include "math_cursor.h"
#include "math_parser.h"
#include "lyx_main.h"
#include "minibuffer.h"
#include "BufferView.h"
#include "lyxtext.h"
#include "gettext.h"
#include "LaTeXFeatures.h"
#include "debug.h"
#include "lyx_gui_misc.h"
#include "support/LOstream.h"
#include "LyXView.h"
#include "Painter.h"
#include "font.h"
#include "support/lyxlib.h"
#include "lyxrc.h"
#include "math_inset.h"
#include "math_parinset.h"
#include "math_matrixinset.h"
#include "math_rowst.h"
#include "math_spaceinset.h"
#include "math_deliminset.h"
#include "mathed/support.h"
using std::ostream;
using std::istream;
using std::pair;
using std::endl;
using std::vector;
using std::max;
extern string mathed_label;
extern char const * latex_special_chars;
int greek_kb_flag = 0;
// this is only used by Whichfont and mathed_init_fonts (Lgb)
LyXFont * Math_Fonts = 0;
static LyXFont::FONT_SIZE lfont_size = LyXFont::SIZE_NORMAL;
// local global
static int sel_x;
static int sel_y;
static bool sel_flag;
MathedCursor * InsetFormula::mathcursor = 0;
void mathed_init_fonts();
static
void mathedValidate(LaTeXFeatures & features, MathParInset * par);
LyXFont WhichFont(short type, int size)
{
LyXFont f;
if (!Math_Fonts)
mathed_init_fonts();
switch (type) {
case LM_TC_SYMB:
f = Math_Fonts[2];
break;
case LM_TC_BSYM:
f = Math_Fonts[2];
break;
case LM_TC_VAR:
case LM_TC_IT:
f = Math_Fonts[0];
break;
case LM_TC_BF:
f = Math_Fonts[3];
break;
case LM_TC_SF:
f = Math_Fonts[7];
break;
case LM_TC_CAL:
f = Math_Fonts[4];
break;
case LM_TC_TT:
f = Math_Fonts[5];
break;
case LM_TC_SPECIAL: //f = Math_Fonts[0]; break;
case LM_TC_TEXTRM:
case LM_TC_RM:
f = Math_Fonts[6];
break;
default:
f = Math_Fonts[1];
break;
}
f.setSize(lfont_size);
switch (size) {
case LM_ST_DISPLAY:
if (type == LM_TC_BSYM) {
f.incSize();
f.incSize();
}
break;
case LM_ST_TEXT:
break;
case LM_ST_SCRIPT:
f.decSize();
break;
case LM_ST_SCRIPTSCRIPT:
f.decSize();
f.decSize();
break;
default:
lyxerr << "Mathed Error: wrong font size: " << size << endl;
break;
}
if (type != LM_TC_TEXTRM)
f.setColor(LColor::math);
return f;
}
void mathed_init_fonts() //removed 'static' because DEC cxx does not
//like it (JMarc)
// Probably because this func is declared as a friend in math_defs.h
// Lgb
{
Math_Fonts = new LyXFont[8]; //DEC cxx cannot initialize all fonts
//at once (JMarc) rc
for (int i = 0 ; i < 8 ; ++i) {
Math_Fonts[i] = LyXFont(LyXFont::ALL_SANE);
}
Math_Fonts[0].setShape(LyXFont::ITALIC_SHAPE);
Math_Fonts[1].setFamily(LyXFont::SYMBOL_FAMILY);
Math_Fonts[2].setFamily(LyXFont::SYMBOL_FAMILY);
Math_Fonts[2].setShape(LyXFont::ITALIC_SHAPE);
Math_Fonts[3].setSeries(LyXFont::BOLD_SERIES);
Math_Fonts[4].setFamily(LyXFont::SANS_FAMILY);
Math_Fonts[4].setShape(LyXFont::ITALIC_SHAPE);
Math_Fonts[5].setFamily(LyXFont::TYPEWRITER_FAMILY);
Math_Fonts[6].setFamily(LyXFont::ROMAN_FAMILY);
Math_Fonts[7].setFamily(LyXFont::SANS_FAMILY);
LyXFont f = WhichFont(LM_TC_VAR, LM_ST_TEXT);
MathedInset::df_asc = lyxfont::maxAscent(f);
MathedInset::df_des = lyxfont::maxDescent(f);
MathedInset::df_width = lyxfont::width('I', f);
}
InsetFormula::InsetFormula(bool display)
{
par = new MathParInset; // this leaks
// mathcursor = 0;
disp_flag = display;
//label = 0;
if (disp_flag) {
par->SetType(LM_OT_PAR);
par->SetStyle(LM_ST_DISPLAY);
}
}
InsetFormula::InsetFormula(MathParInset * p)
{
if (is_matrix_type(p->GetType()))
lyxerr << "InsetFormula::InsetFormula: This shouldn't happen" << endl;
par = is_multiline(p->GetType()) ?
new MathMatrixInset(static_cast<MathMatrixInset*>(p)):
new MathParInset(p);
// mathcursor = 0;
disp_flag = (par->GetType()>0);
//label = 0;
}
InsetFormula::~InsetFormula()
{
delete par;
}
Inset * InsetFormula::Clone(Buffer const &) const
{
InsetFormula * f = new InsetFormula(par);
f->label = label;
return f;
}
void InsetFormula::Write(Buffer const * buf, ostream & os) const
{
os << "Formula ";
Latex(buf, os, false, false);
}
int InsetFormula::Latex(Buffer const *, ostream & os, bool fragile, bool) const
{
int ret = 0;
//#warning Alejandro, the number of lines is not returned in this case
// This problem will disapear at 0.13.
mathed_write(par, os, &ret, fragile, label);
return ret;
}
int InsetFormula::Ascii(Buffer const *, ostream & os, int) const
{
par->Write(os, false);
return 0;
}
int InsetFormula::Linuxdoc(Buffer const * buf, ostream & os) const
{
return Ascii(buf, os, 0);
}
int InsetFormula::DocBook(Buffer const * buf, ostream & os) const
{
return Ascii(buf, os, 0);
}
// Check if uses AMS macros
void InsetFormula::Validate(LaTeXFeatures & features) const
{
if (is_ams(par->GetType()))
features.amsstyle = true;
// Validation is necessary only if not using AMS math.
// To be safe, we will always run mathedValidate.
//if (!features.amsstyle)
mathedValidate(features, par);
}
void InsetFormula::Read(Buffer const *, LyXLex & lex)
{
istream & is = lex.getStream();
mathed_parser_file(is, lex.GetLineNo());
// Silly hack to read labels.
mathed_label.erase();
mathed_parse(0, 0, &par);
par->Metrics();
disp_flag = (par->GetType() > 0);
// Update line number
lex.setLineNo(mathed_parser_lineno());
if (!mathed_label.empty()) {
label = mathed_label;
mathed_label.erase();
}
// reading of end_inset in the inset!!!
while (lex.IsOK()) {
lex.nextToken();
if (lex.GetString() == "\\end_inset")
break;
lyxerr << "InsetFormula::Read: Garbage before \\end_inset,"
" or missing \\end_inset!" << endl;
}
#ifdef DEBUG
Write(lyxerr);
#endif
}
int InsetFormula::ascent(BufferView *, LyXFont const &) const
{
return par->Ascent() + (disp_flag ? 8 : 1);
}
int InsetFormula::descent(BufferView *, LyXFont const &) const
{
return par->Descent() + (disp_flag ? 8 : 1);
}
int InsetFormula::width(BufferView * bv, LyXFont const & f) const
{
MathedInset::workWidth = bv->workWidth();
lfont_size = f.size();
par->Metrics();
return par->Width(); //+2;
}
void InsetFormula::draw(BufferView * bv, LyXFont const & f,
int baseline, float & x, bool) const
{
MathedInset::workWidth = bv->workWidth();
Painter & pain = bv->painter();
// Seems commenting out solves a problem.
LyXFont font = mathed_get_font(LM_TC_TEXTRM, LM_ST_TEXT);
font.setSize(f.size());
lfont_size = font.size();
/// Let's try to wait a bit with this... (Lgb)
//UpdatableInset::draw(pain, font, baseline, x);
// otherwise a segfault could occur
// in some XDrawRectangles (i.e. matrix) (Matthias)
if (mathcursor && mathcursor->GetPar() == par) {
if (mathcursor->Selection()) {
int n;
int * xp = 0;
int * yp = 0;
mathcursor->SelGetArea(&xp, &yp, n);
pain.fillPolygon(xp, yp, n, LColor::selection);
}
mathcursor->draw(pain, int(x), baseline);
} else {
par->draw(pain, int(x), baseline);
}
x += float(width(bv, font));
if (is_numbered(par->GetType())) {
LyXFont wfont = WhichFont(LM_TC_BF, par->size);
wfont.setLatex(LyXFont::OFF);
if (is_singlely_numbered(par->GetType())) {
string str;
if (!label.empty())
str = string("(") + label + ")";
else
str = string("(#)");
pain.text(int(x + 20), baseline, str, wfont);
} else {
MathMatrixInset * mt =
static_cast<MathMatrixInset*>(par);
int y;
MathedRowSt const * crow = mt->getRowSt();
while (crow) {
y = baseline + crow->getBaseline();
if (crow->isNumbered()) {
string str;
if (!crow->getLabel().empty())
str = string("(") + crow->getLabel() + ")";
else
str = "(#)";
pain.text(int(x + 20), y, str, wfont);
}
crow = crow->getNext();
}
}
}
cursor_visible = false;
}
string const InsetFormula::EditMessage() const
{
return _("Math editor mode");
}
void InsetFormula::Edit(BufferView * bv, int x, int y, unsigned int)
{
mathcursor = new MathedCursor(par);
if (!bv->lockInset(this))
lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
par->Metrics();
bv->updateInset(this, false);
x += par->xo;
y += par->yo;
mathcursor->SetPos(x, y);
sel_x = 0;
sel_y = 0;
sel_flag = false;
}
void InsetFormula::InsetUnlock(BufferView * bv)
{
if (mathcursor) {
if (mathcursor->InMacroMode()) {
mathcursor->MacroModeClose();
UpdateLocal(bv);
}
delete mathcursor;
}
mathcursor = 0;
bv->updateInset(this, false);
}
// Now a symbol can be inserted only if the inset is locked
void InsetFormula::InsertSymbol(BufferView * bv, string const & s)
{
if (s.empty() || !mathcursor)
return;
mathcursor->Interpret(s);
UpdateLocal(bv);
}
void InsetFormula::GetCursorPos(BufferView *, int & x, int & y) const
{
mathcursor->GetPos(x, y);
x -= par->xo;
y -= par->yo;
}
void InsetFormula::ToggleInsetCursor(BufferView * bv)
{
if (!mathcursor)
return;
int x;
int y;
mathcursor->GetPos(x, y);
// x -= par->xo;
y -= par->yo;
LyXFont font = WhichFont(LM_TC_TEXTRM, LM_ST_TEXT);
int asc = lyxfont::maxAscent(font);
int desc = lyxfont::maxDescent(font);
if (cursor_visible)
bv->hideLockedInsetCursor();
else
bv->showLockedInsetCursor(x, y, asc, desc);
cursor_visible = !cursor_visible;
}
void InsetFormula::ShowInsetCursor(BufferView * bv, bool)
{
if (!cursor_visible) {
if (mathcursor) {
int x;
int y;
mathcursor->GetPos(x, y);
// x -= par->xo;
y -= par->yo;
LyXFont font = WhichFont(LM_TC_TEXTRM, LM_ST_TEXT);
int asc = lyxfont::maxAscent(font);
int desc = lyxfont::maxDescent(font);
bv->fitLockedInsetCursor(x, y, asc, desc);
}
ToggleInsetCursor(bv);
}
}
void InsetFormula::HideInsetCursor(BufferView * bv)
{
if (cursor_visible)
ToggleInsetCursor(bv);
}
void InsetFormula::ToggleInsetSelection(BufferView * bv)
{
if (!mathcursor)
return;
bv->updateInset(this, false);
}
void InsetFormula::display(bool dspf)
{
if (dspf != disp_flag) {
if (dspf) {
par->SetType(LM_OT_PAR);
par->SetStyle(LM_ST_DISPLAY);
} else {
if (is_multiline(par->GetType())) {
MathParInset * p = new MathParInset(par);
delete par;
par = p;
if (mathcursor)
mathcursor->SetPar(par);
}
par->SetType(LM_OT_MIN);
par->SetStyle(LM_ST_TEXT);
if (!label.empty()) {
label.erase();
}
}
disp_flag = dspf;
}
}
vector<string> const InsetFormula::getLabelList() const
{
//#warning This is dirty, I know. Ill clean it at 0.11
// Correction, the only way to clean this is with a new kernel: 0.13.
vector<string> label_list;
if (is_multi_numbered(par->GetType())) {
MathMatrixInset * mt = static_cast<MathMatrixInset*>(par);
MathedRowSt const * crow = mt->getRowSt();
while (crow) {
if (!crow->getLabel().empty())
label_list.push_back(crow->getLabel());
crow = crow->getNext();
}
} else if (!label.empty())
label_list.push_back(label);
return label_list;
}
void InsetFormula::UpdateLocal(BufferView * bv)
{
par->Metrics(); // To inform lyx kernel the exact size
// (there were problems with arrays).
bv->updateInset(this, true);
}
void InsetFormula::InsetButtonRelease(BufferView * bv,
int x, int y, int /*button*/)
{
if (mathcursor) {
HideInsetCursor(bv);
x += par->xo;
y += par->yo;
mathcursor->SetPos(x, y);
ShowInsetCursor(bv);
if (sel_flag) {
sel_flag = false;
sel_x = sel_y = 0;
bv->updateInset(this, false);
}
}
}
void InsetFormula::InsetButtonPress(BufferView * bv, int x, int y,
int /*button*/)
{
sel_flag = false;
sel_x = x; sel_y = y;
if (mathcursor && mathcursor->Selection()) {
mathcursor->SelClear();
bv->updateInset(this, false);
}
}
void InsetFormula::InsetMotionNotify(BufferView * bv,
int x, int y, int /*button*/)
{
if (sel_x && sel_y && abs(x-sel_x) > 4 && !sel_flag) {
sel_flag = true;
HideInsetCursor(bv);
mathcursor->SetPos(sel_x + par->xo, sel_y + par->yo);
mathcursor->SelStart();
ShowInsetCursor(bv);
mathcursor->GetPos(sel_x, sel_y);
} else if (sel_flag) {
HideInsetCursor(bv);
x += par->xo;
y += par->yo;
mathcursor->SetPos(x, y);
ShowInsetCursor(bv);
mathcursor->GetPos(x, y);
if (sel_x != x || sel_y != y)
bv->updateInset(this, false);
sel_x = x;
sel_y = y;
}
}
void InsetFormula::InsetKeyPress(XKeyEvent *)
{
lyxerr[Debug::MATHED] << "Used InsetFormula::InsetKeyPress." << endl;
}
// Special Mathed functions
bool InsetFormula::SetNumber(bool numbf)
{
if (disp_flag) {
short type = par->GetType();
bool oldf = is_numbered(type);
if (numbf && !oldf)
++type;
if (!numbf && oldf)
--type;
par->SetType(type);
return oldf;
} else
return false;
}
UpdatableInset::RESULT
InsetFormula::LocalDispatch(BufferView * bv, int action, string const & arg)
{
// extern char *dispatch_result;
MathedTextCodes varcode = LM_TC_MIN;
bool was_macro = mathcursor->InMacroMode();
bool sel = false;
bool space_on = false;
bool was_selection = mathcursor->Selection();
RESULT result = DISPATCHED;
static MathSpaceInset * sp= 0;
HideInsetCursor(bv);
if (mathcursor->getLastCode() == LM_TC_TEX) {
varcode = LM_TC_TEX;
}
switch (action) {
// --- Cursor Movements ---------------------------------------------
case LFUN_RIGHTSEL:
sel = true; // fall through...
case LFUN_RIGHT:
result = DISPATCH_RESULT(mathcursor->Right(sel));
if (!sel && (result == DISPATCHED))
result = DISPATCHED_NOUPDATE;
break;
case LFUN_LEFTSEL:
sel = true; // fall through
case LFUN_LEFT:
result = DISPATCH_RESULT(mathcursor->Left(sel));
if (!sel && (result == DISPATCHED))
result = DISPATCHED_NOUPDATE;
break;
case LFUN_UPSEL:
sel = true;
case LFUN_UP:
result = DISPATCH_RESULT(mathcursor->Up(sel));
if (!sel && (result == DISPATCHED))
result = DISPATCHED_NOUPDATE;
break;
case LFUN_DOWNSEL:
sel = true;
case LFUN_DOWN:
result = DISPATCH_RESULT(mathcursor->Down(sel));
if (!sel && (result == DISPATCHED))
result = DISPATCHED_NOUPDATE;
break;
case LFUN_HOME:
mathcursor->Home();
result = DISPATCHED_NOUPDATE;
break;
case LFUN_END:
mathcursor->End();
result = DISPATCHED_NOUPDATE;
break;
case LFUN_DELETE_LINE_FORWARD:
bv->lockedInsetStoreUndo(Undo::DELETE);
mathcursor->DelLine();
UpdateLocal(bv);
break;
case LFUN_BREAKLINE:
{
bv->lockedInsetStoreUndo(Undo::INSERT);
byte c = arg.empty() ? '1' : arg[0];
mathcursor->Insert(c, LM_TC_CR);
if (!label.empty()) {
mathcursor->setLabel(label);
label.erase();
}
par = mathcursor->GetPar();
UpdateLocal(bv);
}
break;
case LFUN_TAB:
bv->lockedInsetStoreUndo(Undo::INSERT);
mathcursor->Insert(0, LM_TC_TAB);
//UpdateInset(this);
break;
case LFUN_TABINSERT:
bv->lockedInsetStoreUndo(Undo::INSERT);
mathcursor->Insert('T', LM_TC_TAB);
UpdateLocal(bv);
break;
case LFUN_BACKSPACE:
if (!mathcursor->Left())
break;
if (!mathcursor->InMacroMode() && mathcursor->pullArg()) {
bv->updateInset(this, true);
break;
}
// fall through...
case LFUN_DELETE:
bv->lockedInsetStoreUndo(Undo::DELETE);
mathcursor->Delete();
bv->updateInset(this, true);
break;
// case LFUN_GETXY:
// sprintf(dispatch_buffer, "%d %d",);
// dispatch_result = dispatch_buffer;
// break;
case LFUN_SETXY:
{
int x;
int y;
int x1;
int y1;
istringstream ist(arg.c_str());
ist >> x >> y;
par->GetXY(x1, y1);
mathcursor->SetPos(x1 + x, y1 + y);
}
break;
/* cursor selection ---------------------------- */
case LFUN_PASTE:
if (was_macro)
mathcursor->MacroModeClose();
bv->lockedInsetStoreUndo(Undo::INSERT);
mathcursor->SelPaste();
UpdateLocal(bv);
break;
case LFUN_CUT:
bv->lockedInsetStoreUndo(Undo::DELETE);
mathcursor->SelCut();
UpdateLocal(bv);
break;
case LFUN_COPY:
mathcursor->SelCopy();
break;
case LFUN_HOMESEL:
case LFUN_ENDSEL:
case LFUN_WORDRIGHTSEL:
case LFUN_WORDLEFTSEL:
break;
// --- accented characters ------------------------------
case LFUN_UMLAUT: mathcursor->setAccent(LM_ddot); break;
case LFUN_CIRCUMFLEX: mathcursor->setAccent(LM_hat); break;
case LFUN_GRAVE: mathcursor->setAccent(LM_grave); break;
case LFUN_ACUTE: mathcursor->setAccent(LM_acute); break;
case LFUN_TILDE: mathcursor->setAccent(LM_tilde); break;
case LFUN_MACRON: mathcursor->setAccent(LM_bar); break;
case LFUN_DOT: mathcursor->setAccent(LM_dot); break;
case LFUN_CARON: mathcursor->setAccent(LM_check); break;
case LFUN_BREVE: mathcursor->setAccent(LM_breve); break;
case LFUN_VECTOR: mathcursor->setAccent(LM_vec); break;
// Greek mode
case LFUN_GREEK:
if (!greek_kb_flag) {
greek_kb_flag = 1;
bv->owner()->getMiniBuffer()->Set(_("Math greek mode on"));
} else
greek_kb_flag = 0;
break;
// Greek keyboard
case LFUN_GREEK_TOGGLE:
greek_kb_flag = (greek_kb_flag) ? 0 : 2;
if (greek_kb_flag)
bv->owner()->getMiniBuffer()->Set(_("Math greek keyboard on"));
else
bv->owner()->getMiniBuffer()->Set(_("Math greek keyboard off"));
break;
// Math fonts
case LFUN_BOLD: mathcursor->toggleLastCode(LM_TC_BF); break;
case LFUN_SANS: mathcursor->toggleLastCode(LM_TC_SF); break;
case LFUN_EMPH: mathcursor->toggleLastCode(LM_TC_CAL); break;
case LFUN_ROMAN: mathcursor->toggleLastCode(LM_TC_RM); break;
case LFUN_CODE: mathcursor->toggleLastCode(LM_TC_TT); break;
case LFUN_DEFAULT: mathcursor->setLastCode(LM_TC_VAR); break;
case LFUN_TEX:
// varcode = LM_TC_TEX;
mathcursor->setLastCode(LM_TC_TEX);
bv->owner()->getMiniBuffer()->Set(_("TeX mode"));
break;
case LFUN_MATH_NUMBER:
bv->lockedInsetStoreUndo(Undo::INSERT);
if (disp_flag) {
short type = par->GetType();
if (is_numbered(type)) {
--type;
if (!label.empty()) {
label.erase();
}
bv->owner()->getMiniBuffer()->Set(_("No number"));
} else {
++type;
bv->owner()->getMiniBuffer()->Set(_("Number"));
}
par->SetType(type);
UpdateLocal(bv);
}
break;
case LFUN_MATH_NONUMBER:
if (is_multi_numbered(par->GetType())) {
// MathMatrixInset *mt = (MathMatrixInset*)par;
//BUG
// mt->SetNumbered(!mt->IsNumbered());
#warning This is a terrible hack! We should find a better solution.
while (mathcursor->getLabel() == MathedXIter::error_label) {
if (LocalDispatch(bv, LFUN_LEFT, string()) == FINISHED)
return DISPATCHED;
}
mathcursor->setNumbered();
UpdateLocal(bv);
}
break;
case LFUN_MATH_LIMITS:
bv->lockedInsetStoreUndo(Undo::INSERT);
if (mathcursor->Limits())
UpdateLocal(bv);
// fall through!
case LFUN_MATH_SIZE:
if (!arg.empty()) {
latexkeys * l = in_word_set(arg);
int sz = (l) ? l->id: -1;
mathcursor->SetSize(sz);
UpdateLocal(bv);
break;
}
// possible fall through?
case LFUN_INSERT_MATH:
bv->lockedInsetStoreUndo(Undo::INSERT);
InsertSymbol(bv, arg);
break;
case LFUN_INSERT_MATRIX:
{
bv->lockedInsetStoreUndo(Undo::INSERT);
int k, m, n;
char s[80], arg2[80];
// This is just so that too long args won't ooze out of s.
strncpy(arg2, arg.c_str(), 80); arg2[79]= '\0';
k = sscanf(arg2, "%d %d %s", &m, &n, s);
s[79] = '\0';
if (k < 1) {
m = n = 1;
} else if (k == 1) {
n = 1;
}
MathMatrixInset * p = new MathMatrixInset(m, n);
if (mathcursor && p) {
if (k > 2 && int(strlen(s)) > m)
p->SetAlign(s[0], &s[1]);
mathcursor->Insert(p, LM_TC_ACTIVE_INSET);
UpdateLocal(bv);
}
break;
}
case LFUN_MATH_DELIM:
{
bv->lockedInsetStoreUndo(Undo::INSERT);
char lf[40], rg[40], arg2[40];
int ilf = '(', irg = '.';
latexkeys * l;
string vdelim("(){}[]./|");
if (arg.empty())
break;
::strncpy(arg2, arg.c_str(), 40);
arg2[39]= '\0';
int n = sscanf(arg2, "%s %s", lf, rg);
lf[39] = '\0';
rg[39] = '\0';
if (n > 0) {
if (isdigit(lf[0]))
ilf = lyx::atoi(lf);
else
if (lf[1]) {
l = in_word_set(lf, strlen(lf));
// Long words will cause l == 0; so check.
if (l)
ilf = l->id;
} else if (vdelim.find(lf[0]) != string::npos)
ilf = lf[0];
if (n > 1) {
if (isdigit(rg[0]))
irg = lyx::atoi(rg);
else
if (rg[1]) {
l = in_word_set(rg, strlen(rg));
if (l)
irg = l->id;
} else if (vdelim.find(rg[0]) != string::npos)
irg = rg[0];
}
}
MathDelimInset * p = new MathDelimInset(ilf, irg);
mathcursor->Insert(p, LM_TC_ACTIVE_INSET);
UpdateLocal(bv);
break;
}
case LFUN_PROTECTEDSPACE:
bv->lockedInsetStoreUndo(Undo::INSERT);
sp = new MathSpaceInset(1);
mathcursor->Insert(sp);
space_on = true;
UpdateLocal(bv);
break;
case LFUN_INSERT_LABEL:
{
bv->lockedInsetStoreUndo(Undo::INSERT);
if (par->GetType() < LM_OT_PAR)
break;
string old_label = is_multiline(par->GetType())
? mathcursor->getLabel() : label;
#warning This is a terrible hack! We should find a better solution.
/// This is needed because in some positions mathcursor->cursor->crow
/// is equal to 0, and therefore the label cannot be inserted.
/// So we move the cursor left until mathcursor->cursor->crow != 0.
while (old_label == MathedXIter::error_label) {
if (LocalDispatch(bv, LFUN_LEFT, string()) == FINISHED)
return DISPATCHED;
old_label = mathcursor->getLabel();
}
string new_label = arg;
if (new_label.empty()) {
string default_label = (lyxrc.label_init_length >= 0) ? "eq:" : "";
pair<bool, string> res = old_label.empty()
? askForText(_("Enter new label to insert:"), default_label)
: askForText(_("Enter label:"), old_label);
if (!res.first)
break;
new_label = frontStrip(strip(res.second));
}
if (new_label == old_label)
break; // Nothing to do
if (!new_label.empty())
SetNumber(true);
if (!new_label.empty() && bv->ChangeRefsIfUnique(old_label, new_label))
bv->redraw();
if (is_multi_numbered(par->GetType()))
mathcursor->setLabel(new_label);
// MathMatrixInset *mt = (MathMatrixInset*)par;
// mt->SetLabel(new_label);
else
label = new_label;
UpdateLocal(bv);
break;
}
case LFUN_MATH_DISPLAY:
bv->lockedInsetStoreUndo(Undo::EDIT);
display(!disp_flag);
UpdateLocal(bv);
break;
// Invalid actions under math mode
case LFUN_MATH_MODE:
if (mathcursor->getLastCode()!= LM_TC_TEXTRM) {
bv->owner()->getMiniBuffer()->Set(_("math text mode"));
varcode = LM_TC_TEXTRM;
} else {
varcode = LM_TC_VAR;
}
mathcursor->setLastCode(varcode);
break;
case LFUN_UNDO:
bv->owner()->getMiniBuffer()->Set(_("Invalid action in math mode!"));
break;
//------- dummy actions
case LFUN_EXEC_COMMAND:
bv->owner()->getMiniBuffer()->PrepareForCommand();
break;
default:
if ((action == -1 || action == LFUN_SELFINSERT) && !arg.empty()) {
unsigned char c = arg[0];
bv->lockedInsetStoreUndo(Undo::INSERT);
if (c == ' ' && mathcursor->getAccent() == LM_hat) {
c = '^';
mathcursor->setAccent(0);
}
if (c == 0) { // Dead key, do nothing
//lyxerr << "deadkey" << endl;
break;
}
if (isalpha(c)) {
if (mathcursor->getLastCode() == LM_TC_TEX) {
mathcursor->MacroModeOpen();
mathcursor->clearLastCode();
varcode = LM_TC_MIN;
} else
if (!varcode) {
short f = (mathcursor->getLastCode()) ?
mathcursor->getLastCode() :
static_cast<MathedTextCodes>(mathcursor->GetFCode());
varcode = MathIsAlphaFont(f) ?
static_cast<MathedTextCodes>(f) :
LM_TC_VAR;
}
// lyxerr << "Varcode << vardoce;
MathedTextCodes char_code = varcode;
if (greek_kb_flag) {
char greek[26] =
{'A', 'B', 'X', 0 , 'E', 0 , 0 , 'H', 'I', 0 ,
'K', 0 , 'M', 'N', 'O', 0 , 0 , 'P', 0 , 'T',
'Y', 0, 0, 0, 0 , 'Z' };
if ('A' <= c && c <= 'Z' && greek[c - 'A']) {
char_code = LM_TC_RM;
c = greek[c - 'A'];
} else
char_code = LM_TC_SYMB;
}
mathcursor->Insert(c, char_code);
if (greek_kb_flag && char_code == LM_TC_RM )
mathcursor->setLastCode(LM_TC_VAR);
varcode = LM_TC_MIN;
if (greek_kb_flag<2)
greek_kb_flag = 0;
} else
if (strchr("!,:;{}", c) && (varcode == LM_TC_TEX||was_macro)) {
mathcursor->Insert(c, LM_TC_TEX);
if (c == '{') {
mathcursor->Insert('}', LM_TC_TEX);
mathcursor->Left();
}
mathcursor->clearLastCode();
// varcode = LM_TC_MIN;
} else
if (c == '_' && varcode == LM_TC_TEX) {
mathcursor->Insert(c, LM_TC_SPECIAL);
mathcursor->clearLastCode();
// varcode = LM_TC_MIN;
} else
if (('0'<= c && c<= '9') && (varcode == LM_TC_TEX||was_macro)) {
mathcursor->MacroModeOpen();
mathcursor->clearLastCode();
mathcursor->Insert(c, LM_TC_MIN);
} else
if (('0'<= c && c<= '9') || strchr(";:!|[]().,?", c)) {
mathcursor->Insert(c, LM_TC_CONST);
} else
if (strchr("+/-*<>=", c)) {
mathcursor->Insert(c, LM_TC_BOP);
} else
if (strchr(latex_special_chars, c) && c!= '_') {
mathcursor->Insert(c, LM_TC_SPECIAL);
} else
if (c == '_' || c == '^') {
char s[2];
s[0] = c;
s[1] = 0;
mathcursor->Interpret(s);
} else
if (c == ' ') {
if (!varcode) {
short f = (mathcursor->getLastCode()) ?
mathcursor->getLastCode() :
static_cast<MathedTextCodes>(mathcursor->GetFCode());
varcode = MathIsAlphaFont(f) ?
static_cast<MathedTextCodes>(f) :
LM_TC_VAR;
}
if (varcode == LM_TC_TEXTRM) {
mathcursor->Insert(c, LM_TC_TEXTRM);
} else
if (was_macro) {
mathcursor->MacroModeClose();
} else
if (sp) {
int isp = (sp->GetSpace()<5) ? sp->GetSpace()+1: 0;
sp->SetSpace(isp);
space_on = true;
} else
if (!mathcursor->Pop() && mathcursor->IsEnd())
result = FINISHED;
} else
if (c == '\'' || c == '@') {
mathcursor->Insert (c, LM_TC_VAR);
} else
if (c == '\\') {
if (was_macro)
mathcursor->MacroModeClose();
bv->owner()->getMiniBuffer()->Set(_("TeX mode"));
mathcursor->setLastCode(LM_TC_TEX);
}
UpdateLocal(bv);
} else if (action == LFUN_MATH_PANEL) {
result = UNDISPATCHED;
} else {
// lyxerr << "Closed by action " << action << endl;
result = FINISHED;
}
}
if (was_macro != mathcursor->InMacroMode()
&& action >= 0
&& action != LFUN_BACKSPACE)
UpdateLocal(bv);
if (sp && !space_on)
sp = 0;
if (mathcursor->Selection() || was_selection)
ToggleInsetSelection(bv);
if ((result == DISPATCHED) || (result == DISPATCHED_NOUPDATE) ||
(result == UNDISPATCHED))
ShowInsetCursor(bv);
else
bv->unlockInset(this);
return result;
}
static
void mathedValidate(LaTeXFeatures & features, MathParInset * par)
{
MathedIter it(par->GetData());
while (it.OK() && !(features.binom && features.boldsymbol)) {
if (it.IsInset()) {
if (it.IsActive()) {
MathParInset * p = it.GetActiveInset();
if (!features.binom && p->GetType() == LM_OT_MACRO &&
p->GetName() == "binom") {
features.binom = true;
} else {
for (int i = 0; i <= p->getMaxArgumentIdx(); ++i) {
p->setArgumentIdx(i);
mathedValidate(features, p);
}
}
} else {
MathedInset * p = it.GetInset();
if (!features.boldsymbol && p->GetName() == "boldsymbol") {
features.boldsymbol = true;
}
}
}
it.Next();
}
}
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