lyx_mirror/src/mathed/formulabase.C
Dekel Tsur 0ea628140a Do not make the buffer dirty when moving the cursor.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@5583 a592a061-630c-0410-9148-cb99ea01b6c8
2002-11-05 09:55:55 +00:00

1044 lines
24 KiB
C

/*
* File: formulabase.C
* Purpose: Implementation of common parts of the LyX math insets
* Author: Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
* Created: January 1996
*
* 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 <fstream>
#include "Lsstream.h"
#include "support/LAssert.h"
#ifdef __GNUG__
#pragma implementation
#endif
#include "formula.h"
#include "formulamacro.h"
#include "lyxrc.h"
#include "funcrequest.h"
#include "BufferView.h"
#include "lyxtext.h"
#include "gettext.h"
#include "LaTeXFeatures.h"
#include "debug.h"
#include "math_support.h"
#include "math_metricsinfo.h"
#include "support/lstrings.h"
#include "frontends/LyXView.h"
#include "frontends/font_metrics.h"
#include "frontends/mouse_state.h"
#include "Lsstream.h"
#include "math_arrayinset.h"
#include "math_charinset.h"
#include "math_deliminset.h"
#include "math_cursor.h"
#include "math_factory.h"
#include "math_fontinset.h"
#include "math_hullinset.h"
#include "math_iterator.h"
#include "math_macrotable.h"
#include "math_parser.h"
#include "math_pos.h"
#include "math_spaceinset.h"
#include "undo_funcs.h"
#include "textpainter.h"
#include "frontends/Dialogs.h"
#include "intl.h"
#include "insets/insetcommandparams.h"
#include "ref_inset.h"
using std::endl;
using std::ostream;
using std::vector;
using std::abs;
using std::max;
MathCursor * mathcursor = 0;
namespace {
// local global
int first_x;
int first_y;
bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
{
if (!bv->insertInset(new_inset)) {
delete new_inset;
return false;
}
new_inset->edit(bv, true);
return true;
}
} // namespace anon
InsetFormulaBase::InsetFormulaBase()
: font_(), xo_(0), yo_(0)
{
// This is needed as long the math parser is not re-entrant
initMath();
//lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
//lyxerr << "sizeof MathMetricsInfo: " << sizeof(MathMetricsInfo) << "\n";
//lyxerr << "sizeof MathCharInset: " << sizeof(MathCharInset) << "\n";
//lyxerr << "sizeof LyXFont: " << sizeof(LyXFont) << "\n";
}
// simply scrap this function if you want
void InsetFormulaBase::mutateToText()
{
#if 0
// translate to latex
ostringstream os;
latex(NULL, os, false, false);
string str = os.str();
// insert this text
LyXText * lt = view_->getLyXText();
string::const_iterator cit = str.begin();
string::const_iterator end = str.end();
for (; cit != end; ++cit)
view_->owner()->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
// remove ourselves
//view_->owner()->dispatch(LFUN_ESCAPE);
#endif
}
void InsetFormulaBase::handleFont
(BufferView * bv, string const & arg, string const & font)
{
// this whole function is a hack and won't work for incremental font
// changes...
bv->lockedInsetStoreUndo(Undo::EDIT);
if (mathcursor->par()->name() == font) {
mathcursor->handleFont(font);
updateLocal(bv, true);
} else {
bool sel = mathcursor->selection();
if (sel)
updateLocal(bv, true);
mathcursor->handleNest(createMathInset(font));
mathcursor->insert(arg);
if (!sel)
updateLocal(bv, false);
}
}
// Check if uses AMS macros
void InsetFormulaBase::validate(LaTeXFeatures &) const
{}
void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
{
font_ = f;
metrics(bv);
}
void InsetFormulaBase::metrics(BufferView * bv) const
{
if (bv)
view_ = bv->owner()->view();
MathMetricsInfo mi;
mi.base.style = LM_ST_TEXT;
mi.base.font = font_;
mi.base.font.setColor(LColor::math);
par()->metrics(mi);
}
string const InsetFormulaBase::editMessage() const
{
return _("Math editor mode");
}
void InsetFormulaBase::edit(BufferView * bv, int x, int y, mouse_button::state)
{
if (!bv->lockInset(this))
lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
releaseMathCursor(bv);
mathcursor = new MathCursor(this, true);
metrics(bv);
mathcursor->setPos(x + xo_, y + yo_);
// if that is removed, we won't get the magenta box when entering an
// inset for the first time
bv->updateInset(this, false);
}
void InsetFormulaBase::edit(BufferView * bv, bool front)
{
if (!bv->lockInset(this))
lyxerr << "Cannot lock math inset in edit call!\n";
releaseMathCursor(bv);
mathcursor = new MathCursor(this, front);
metrics(bv);
bv->updateInset(this, false);
}
void InsetFormulaBase::insetUnlock(BufferView * bv)
{
if (mathcursor) {
if (mathcursor->inMacroMode()) {
mathcursor->macroModeClose();
updateLocal(bv, true);
}
releaseMathCursor(bv);
}
generatePreview();
bv->updateInset(this, false);
}
void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
{
// calling metrics here destroys the cached xo,yo positions e.g. in
// MathParboxinset. And it would be too expensive anyway...
//metrics(bv);
if (!mathcursor) {
lyxerr << "getCursorPos - should not happen";
x = y = 0;
return;
}
mathcursor->getPos(x, y);
x = mathcursor->targetX();
x -= xo_;
y -= yo_;
//lyxerr << "getCursorPos: " << x << " " << y << "\n";
}
void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
{
//lyxerr << "toggleInsetCursor: " << isCursorVisible() << "\n";
if (isCursorVisible())
hideInsetCursor(bv);
else
showInsetCursor(bv);
}
void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
{
if (isCursorVisible())
return;
fitInsetCursor(bv);
int x, y, asc, des;
mathcursor->getPos(x, y);
math_font_max_dim(font_, asc, des);
bv->showLockedInsetCursor(x, y - yo_, asc, des);
setCursorVisible(true);
//lyxerr << "showInsetCursor: " << x << " " << y << "\n";
}
void InsetFormulaBase::hideInsetCursor(BufferView * bv)
{
if (!isCursorVisible())
return;
bv->hideLockedInsetCursor();
setCursorVisible(false);
//lyxerr << "hideInsetCursor: \n";
}
void InsetFormulaBase::fitInsetCursor(BufferView * bv) const
{
if (!mathcursor)
return;
int x, y, asc, des;
math_font_max_dim(font_, asc, des);
getCursorPos(bv, x, y);
//y += yo_;
//lyxerr << "fitInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
bv->fitLockedInsetCursor(x, y, asc, des);
}
void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
{
if (mathcursor)
bv->updateInset(this, false);
}
vector<string> const InsetFormulaBase::getLabelList() const
{
return vector<string>();
}
void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
{
bv->updateInset(this, dirty);
}
Inset::RESULT InsetFormulaBase::lfunMouseRelease(FuncRequest const & cmd)
{
if (!mathcursor)
return UNDISPATCHED;
BufferView * bv = cmd.view();
hideInsetCursor(bv);
showInsetCursor(bv);
bv->updateInset(this, false);
//lyxerr << "lfunMouseRelease: buttons: " << cmd.button() << "\n";
if (cmd.button() == mouse_button::button3) {
// try to dispatch to enclosed insets first
if (mathcursor->dispatch(cmd) == MathInset::UNDISPATCHED) {
// launch math panel for right mouse button
bv->owner()->getDialogs().showMathPanel();
}
return DISPATCHED;
}
if (cmd.button() == mouse_button::button2) {
mathcursor->selClear();
mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
mathcursor->insert(asArray(bv->getClipboard()));
bv->updateInset(this, true);
return DISPATCHED;
}
if (cmd.button() == mouse_button::button1) {
// try to dispatch to enclosed insets first
mathcursor->dispatch(cmd);
cmd.view()->stuffClipboard(mathcursor->grabSelection());
// try to set the cursor
//delete mathcursor;
//mathcursor = new MathCursor(this, x == 0);
//metrics(bv);
//mathcursor->setPos(x + xo_, y + yo_);
return DISPATCHED;
}
return UNDISPATCHED;
}
Inset::RESULT InsetFormulaBase::lfunMousePress(FuncRequest const & cmd)
{
BufferView * bv = cmd.view();
//lyxerr << "lfunMousePress: buttons: " << cmd.button() << "\n";
if (!mathcursor || mathcursor->formula() != this) {
lyxerr << "re-create cursor\n";
releaseMathCursor(bv);
mathcursor = new MathCursor(this, cmd.x == 0);
metrics(bv);
mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
}
if (cmd.button() == mouse_button::button3) {
mathcursor->dispatch(cmd);
return DISPATCHED;
}
if (cmd.button() == mouse_button::button1) {
first_x = cmd.x;
first_y = cmd.y;
mathcursor->selClear();
mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
mathcursor->dispatch(cmd);
return DISPATCHED;
}
bv->updateInset(this, false);
return DISPATCHED;
}
Inset::RESULT InsetFormulaBase::lfunMouseMotion(FuncRequest const & cmd)
{
if (!mathcursor)
return DISPATCHED;
if (mathcursor->dispatch(FuncRequest(cmd)) != MathInset::UNDISPATCHED)
return DISPATCHED;
// only select with button 1
if (cmd.button() != mouse_button::button1)
return DISPATCHED;
if (abs(cmd.x - first_x) < 2 && abs(cmd.y - first_y) < 2)
return DISPATCHED;
first_x = cmd.x;
first_y = cmd.y;
if (!mathcursor->selection())
mathcursor->selStart();
BufferView * bv = cmd.view();
hideInsetCursor(bv);
mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
showInsetCursor(bv);
bv->updateInset(this, false);
return DISPATCHED;
}
Inset::RESULT InsetFormulaBase::localDispatch(FuncRequest const & cmd)
{
//lyxerr << "InsetFormulaBase::localDispatch: act: " << cmd.action
// << " arg: '" << cmd.argument
// << " x: '" << cmd.x
// << " y: '" << cmd.y
// << "' button: " << cmd.button() << "\n";
switch (cmd.action) {
case LFUN_MOUSE_PRESS:
return lfunMousePress(cmd);
case LFUN_MOUSE_MOTION:
return lfunMouseMotion(cmd);
case LFUN_MOUSE_RELEASE:
return lfunMouseRelease(cmd);
case LFUN_MOUSE_DOUBLE:
//lyxerr << "Mouse double\n";
return localDispatch(FuncRequest(LFUN_WORDSEL));
default:
break;
}
if (!mathcursor)
return UNDISPATCHED;
BufferView * bv = cmd.view();
string argument = cmd.argument;
RESULT result = DISPATCHED;
bool sel = false;
bool was_macro = mathcursor->inMacroMode();
bool was_selection = mathcursor->selection();
hideInsetCursor(bv);
mathcursor->normalize();
mathcursor->touch();
switch (cmd.action) {
case LFUN_MATH_MUTATE:
case LFUN_MATH_DISPLAY:
case LFUN_MATH_NUMBER:
case LFUN_MATH_NONUMBER:
case LFUN_TABINSERT:
case LFUN_BREAKLINE:
case LFUN_DELETE_LINE_FORWARD:
case LFUN_INSERT_LABEL:
case LFUN_MATH_EXTERN:
case LFUN_TABULAR_FEATURE:
case LFUN_PASTESELECTION:
case LFUN_MATH_LIMITS:
bv->lockedInsetStoreUndo(Undo::EDIT);
mathcursor->dispatch(cmd);
updateLocal(bv, true);
break;
case LFUN_RIGHTSEL:
sel = true; // fall through...
case LFUN_RIGHT:
result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
//lyxerr << "calling scroll 20\n";
//scroll(bv, 20);
updateLocal(bv, false);
// write something to the minibuffer
//bv->owner()->message(mathcursor->info());
break;
case LFUN_LEFTSEL:
sel = true; // fall through
case LFUN_LEFT:
result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
updateLocal(bv, false);
break;
case LFUN_UPSEL:
sel = true; // fall through
case LFUN_UP:
result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
updateLocal(bv, false);
break;
case LFUN_DOWNSEL:
sel = true; // fall through
case LFUN_DOWN:
result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
updateLocal(bv, false);
break;
case LFUN_WORDSEL:
mathcursor->home(false);
mathcursor->end(true);
updateLocal(bv, false);
break;
case LFUN_HOMESEL:
case LFUN_WORDLEFTSEL:
sel = true; // fall through
case LFUN_HOME:
case LFUN_WORDLEFT:
result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
updateLocal(bv, false);
break;
case LFUN_ENDSEL:
case LFUN_WORDRIGHTSEL:
sel = true; // fall through
case LFUN_END:
case LFUN_WORDRIGHT:
result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
updateLocal(bv, false);
break;
case LFUN_PRIORSEL:
case LFUN_PRIOR:
case LFUN_BEGINNINGBUFSEL:
case LFUN_BEGINNINGBUF:
result = FINISHED_UP;
updateLocal(bv, false);
break;
case LFUN_NEXTSEL:
case LFUN_NEXT:
case LFUN_ENDBUFSEL:
case LFUN_ENDBUF:
result = FINISHED_DOWN;
updateLocal(bv, false);
break;
case LFUN_TAB:
mathcursor->idxNext();
updateLocal(bv, false);
break;
case LFUN_SHIFT_TAB:
mathcursor->idxPrev();
updateLocal(bv, false);
break;
case LFUN_DELETE_WORD_BACKWARD:
case LFUN_BACKSPACE:
bv->lockedInsetStoreUndo(Undo::DELETE);
mathcursor->backspace();
updateLocal(bv, true);
break;
case LFUN_DELETE_WORD_FORWARD:
case LFUN_DELETE:
bv->lockedInsetStoreUndo(Undo::DELETE);
mathcursor->erase();
bv->updateInset(this, true);
break;
// case LFUN_GETXY:
// sprintf(dispatch_buffer, "%d %d",);
// dispatch_result = dispatch_buffer;
// break;
case LFUN_SETXY: {
lyxerr << "LFUN_SETXY broken!\n";
int x = 0;
int y = 0;
istringstream is(cmd.argument.c_str());
is >> x >> y;
mathcursor->setPos(x, y);
updateLocal(bv, false);
break;
}
case LFUN_PASTE:
if (was_macro)
mathcursor->macroModeClose();
bv->lockedInsetStoreUndo(Undo::EDIT);
mathcursor->selPaste();
updateLocal(bv, true);
break;
case LFUN_CUT:
bv->lockedInsetStoreUndo(Undo::DELETE);
mathcursor->selCut();
updateLocal(bv, true);
break;
case LFUN_COPY:
mathcursor->selCopy();
break;
// Special casing for superscript in case of LyX handling
// dead-keys:
case LFUN_CIRCUMFLEX:
if (cmd.argument.empty()) {
// do superscript if LyX handles
// deadkeys
bv->lockedInsetStoreUndo(Undo::EDIT);
mathcursor->script(true);
updateLocal(bv, true);
}
break;
case LFUN_UMLAUT:
case LFUN_ACUTE:
case LFUN_GRAVE:
case LFUN_BREVE:
case LFUN_DOT:
case LFUN_MACRON:
case LFUN_CARON:
case LFUN_TILDE:
case LFUN_CEDILLA:
case LFUN_CIRCLE:
case LFUN_UNDERDOT:
case LFUN_TIE:
case LFUN_OGONEK:
case LFUN_HUNG_UMLAUT:
break;
// Math fonts
case LFUN_GREEK_TOGGLE: handleFont(bv, cmd.argument, "lyxgreek"); break;
case LFUN_BOLD: handleFont(bv, cmd.argument, "mathbf"); break;
case LFUN_SANS: handleFont(bv, cmd.argument, "mathsf"); break;
case LFUN_EMPH: handleFont(bv, cmd.argument, "mathcal"); break;
case LFUN_ROMAN: handleFont(bv, cmd.argument, "mathrm"); break;
case LFUN_CODE: handleFont(bv, cmd.argument, "texttt"); break;
case LFUN_FRAK: handleFont(bv, cmd.argument, "mathfrak"); break;
case LFUN_ITAL: handleFont(bv, cmd.argument, "mathit"); break;
case LFUN_NOUN: handleFont(bv, cmd.argument, "mathbb"); break;
case LFUN_FREE: handleFont(bv, cmd.argument, "textrm"); break;
case LFUN_DEFAULT: handleFont(bv, cmd.argument, "textnormal"); break;
case LFUN_GREEK:
handleFont(bv, cmd.argument, "lyxgreek1");
if (cmd.argument.size())
mathcursor->insert(asArray(cmd.argument));
break;
case LFUN_MATH_MODE:
if (mathcursor->currentMode() == MathInset::TEXT_MODE) {
mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
updateLocal(bv, true);
} else {
handleFont(bv, cmd.argument, "textrm");
}
//bv->owner()->message(_("math text mode toggled"));
break;
case LFUN_MATH_SIZE:
#if 0
if (!arg.empty()) {
bv->lockedInsetStoreUndo(Undo::EDIT);
mathcursor->setSize(arg);
updateLocal(bv, true);
}
#endif
break;
case LFUN_INSERT_MATRIX: {
bv->lockedInsetStoreUndo(Undo::EDIT);
unsigned int m = 1;
unsigned int n = 1;
string v_align;
string h_align;
istringstream is(STRCONV(argument));
is >> m >> n >> v_align >> h_align;
m = max(1u, m);
n = max(1u, n);
v_align += 'c';
mathcursor->niceInsert(
MathAtom(new MathArrayInset("array", m, n, v_align[0], h_align)));
updateLocal(bv, true);
break;
}
case LFUN_SUPERSCRIPT:
case LFUN_SUBSCRIPT:
{
bv->lockedInsetStoreUndo(Undo::EDIT);
mathcursor->script(cmd.action == LFUN_SUPERSCRIPT);
updateLocal(bv, true);
break;
}
case LFUN_MATH_DELIM:
{
//lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
string ls;
string rs = split(cmd.argument, ls, ' ');
// Reasonable default values
if (ls.empty())
ls = '(';
if (rs.empty())
rs = ')';
bv->lockedInsetStoreUndo(Undo::EDIT);
mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
updateLocal(bv, true);
break;
}
case LFUN_PROTECTEDSPACE:
case LFUN_MATH_SPACE:
bv->lockedInsetStoreUndo(Undo::EDIT);
mathcursor->insert(MathAtom(new MathSpaceInset(",")));
updateLocal(bv, true);
break;
case LFUN_UNDO:
bv->owner()->message(_("Invalid action in math mode!"));
break;
case LFUN_EXEC_COMMAND:
result = UNDISPATCHED;
break;
case LFUN_INSET_ERT:
// interpret this as if a backslash was typed
bv->lockedInsetStoreUndo(Undo::EDIT);
mathcursor->interpret('\\');
updateLocal(bv, true);
break;
case LFUN_BREAKPARAGRAPH:
case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
case LFUN_BREAKPARAGRAPH_SKIP:
argument = "\n";
// fall through
// FIXME: We probably should swap parts of "math-insert" and "self-insert"
// handling such that "self-insert" works on "arbitrary stuff" too, and
// math-insert only handles special math things like "matrix".
case LFUN_INSERT_MATH:
bv->lockedInsetStoreUndo(Undo::EDIT);
mathcursor->niceInsert(argument);
updateLocal(bv, true);
break;
case -1:
case LFUN_SELFINSERT:
if (!argument.empty()) {
bv->lockedInsetStoreUndo(Undo::EDIT);
if (argument.size() == 1)
result = mathcursor->interpret(argument[0]) ? DISPATCHED : FINISHED_RIGHT;
else
mathcursor->insert(asArray(argument));
updateLocal(bv, true);
}
break;
case LFUN_MATH_PANEL:
result = UNDISPATCHED;
break;
case LFUN_ESCAPE:
if (mathcursor->selection())
mathcursor->selClear();
else
result = UNDISPATCHED;
break;
case LFUN_INSET_TOGGLE:
mathcursor->insetToggle();
updateLocal(bv, true);
break;
case LFUN_REF_INSERT:
//if (argument.empty()) {
// InsetCommandParams p("ref");
// owner_->getDialogs().createRef(p.getAsString());
//} else {
// InsetCommandParams p;
// p.setFromString(argument);
// InsetRef * inset = new InsetRef(p, *buffer_);
// if (!insertInset(inset))
// delete inset;
// else
// updateInset(inset, true);
//}
//
if (cmd.argument.empty()) {
InsetCommandParams p("ref");
bv->owner()->getDialogs().createRef(p.getAsString());
} else {
//mathcursor->handleNest(new InsetRef2);
//mathcursor->insert(arg);
mathcursor->insert(MathAtom(new RefInset(cmd.argument)));
}
updateLocal(bv, true);
break;
default:
result = UNDISPATCHED;
}
mathcursor->normalize();
mathcursor->touch();
lyx::Assert(mathcursor);
if (mathcursor->selection() || was_selection)
toggleInsetSelection(bv);
if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
result == UNDISPATCHED) {
fitInsetCursor(bv);
showInsetCursor(bv);
revealCodes(bv);
cmd.view()->stuffClipboard(mathcursor->grabSelection());
} else {
releaseMathCursor(bv);
bv->unlockInset(this);
}
return result; // original version
}
void InsetFormulaBase::revealCodes(BufferView * bv) const
{
if (!mathcursor)
return;
bv->owner()->message(mathcursor->info());
#if 0
// write something to the minibuffer
// translate to latex
mathcursor->markInsert();
ostringstream os;
write(NULL, os);
string str = os.str();
mathcursor->markErase();
string::size_type pos = 0;
string res;
for (string::iterator it = str.begin(); it != str.end(); ++it) {
if (*it == '\n')
res += ' ';
else if (*it == '\0') {
res += " -X- ";
pos = it - str.begin();
}
else
res += *it;
}
if (pos > 30)
res = res.substr(pos - 30);
if (res.size() > 60)
res = res.substr(0, 60);
bv->owner()->message(res);
#endif
}
Inset::Code InsetFormulaBase::lyxCode() const
{
return Inset::MATH_CODE;
}
int InsetFormulaBase::ylow() const
{
return yo_ - ascent(view(), font_);
}
int InsetFormulaBase::yhigh() const
{
return yo_ + descent(view(), font_);
}
int InsetFormulaBase::xlow() const
{
return xo_;
}
int InsetFormulaBase::xhigh() const
{
return xo_ + width(view(), font_);
}
/////////////////////////////////////////////////////////////////////
bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
bool, bool)
{
#ifdef WITH_WARNINGS
#warning pretty ugly
#endif
static InsetFormulaBase * lastformula = 0;
static MathIterator current = MathIterator(ibegin(par().nucleus()));
static MathArray ar;
static string laststr;
if (lastformula != this || laststr != str) {
//lyxerr << "reset lastformula to " << this << "\n";
lastformula = this;
laststr = str;
current = ibegin(par().nucleus());
ar.clear();
mathed_parse_cell(ar, str);
} else {
++current;
}
//lyxerr << "searching '" << str << "' in " << this << ar << endl;
for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
if (it.cell().matchpart(ar, it.back().pos_)) {
bv->unlockInset(bv->theLockingInset());
if (!bv->lockInset(this)) {
lyxerr << "Cannot lock inset" << endl;
return false;
}
delete mathcursor;
mathcursor = new MathCursor(this, true);
metrics(bv);
mathcursor->setSelection(it, ar.size());
current = it;
it.jump(ar.size());
updateLocal(bv, false);
return true;
}
}
//lyxerr << "not found!\n";
lastformula = 0;
return false;
}
bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
bool a, bool b)
{
lyxerr[Debug::MATHED] << "searching backward not implemented in mathed\n";
return searchForward(bv, what, a, b);
}
bool InsetFormulaBase::display() const
{
return par()->asHullInset() && par()->asHullInset()->display();
}
string InsetFormulaBase::selectionAsString() const
{
return mathcursor ? mathcursor->grabSelection() : string();
}
/////////////////////////////////////////////////////////////////////
void mathDispatchCreation(FuncRequest const & cmd, bool display)
{
BufferView * bv = cmd.view();
// use selection if available..
//string sel;
//if (action == LFUN_MATH_IMPORT_SELECTION)
// sel = "";
//else
string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
if (sel.empty()) {
InsetFormula * f = new InsetFormula(bv);
if (openNewInset(bv, f)) {
bv->theLockingInset()->
localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
// don't do that also for LFUN_MATH_MODE unless you want end up with
// always changing to mathrm when opening an inlined inset
// -- I really hate "LyXfunc overloading"...
if (display)
f->localDispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
f->localDispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
}
} else {
// create a macro if we see "\\newcommand" somewhere, and an ordinary
// formula otherwise
InsetFormulaBase * f;
if (sel.find("\\newcommand") == string::npos &&
sel.find("\\def") == string::npos)
f = new InsetFormula(sel);
else
f = new InsetFormulaMacro(sel);
bv->getLyXText()->cutSelection(bv);
openNewInset(bv, f);
}
cmd.message(N_("Math editor mode"));
}
void mathDispatch(FuncRequest const & cmd)
{
BufferView * bv = cmd.view();
if (!bv->available())
return;
switch (cmd.action) {
case LFUN_MATH_DISPLAY:
mathDispatchCreation(cmd, true);
break;
case LFUN_MATH_MODE:
mathDispatchCreation(cmd, false);
break;
case LFUN_MATH_IMPORT_SELECTION:
mathDispatchCreation(cmd, false);
break;
case LFUN_MATH_MACRO:
if (cmd.argument.empty())
cmd.errorMessage(N_("Missing argument"));
else {
string s = cmd.argument;
string const s1 = token(s, ' ', 1);
int const na = s1.empty() ? 0 : lyx::atoi(s1);
openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
}
break;
case LFUN_GREEK:
case LFUN_INSERT_MATH:
case LFUN_INSERT_MATRIX:
case LFUN_MATH_DELIM: {
InsetFormula * f = new InsetFormula(bv);
if (openNewInset(bv, f)) {
bv->theLockingInset()->
localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
bv->theLockingInset()->localDispatch(cmd);
}
break;
}
default:
break;
}
}