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lyx_mirror/src/mathed/InsetMathNest.cpp
Enrico Forestieri 61db164302 Fix bug #11444
2021-02-28 14:56:42 +01:00

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/**
* \file InsetMathNest.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author André Pönitz
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "InsetMathNest.h"
#include "InsetMathArray.h"
#include "InsetMathAMSArray.h"
#include "InsetMathBig.h"
#include "InsetMathBox.h"
#include "InsetMathBrace.h"
#include "InsetMathChar.h"
#include "InsetMathColor.h"
#include "InsetMathComment.h"
#include "InsetMathDelim.h"
#include "InsetMathEnsureMath.h"
#include "InsetMathHull.h"
#include "InsetMathRef.h"
#include "InsetMathScript.h"
#include "InsetMathSpace.h"
#include "InsetMathSymbol.h"
#include "InsetMathUnknown.h"
#include "MathAutoCorrect.h"
#include "MathCompletionList.h"
#include "MathFactory.h"
#include "InsetMathMacro.h"
#include "InsetMathMacroArgument.h"
#include "MathParser.h"
#include "MathStream.h"
#include "MathSupport.h"
#include "Buffer.h"
#include "BufferParams.h"
#include "BufferView.h"
#include "CoordCache.h"
#include "Cursor.h"
#include "CutAndPaste.h"
#include "DispatchResult.h"
#include "Encoding.h"
#include "FuncRequest.h"
#include "FuncStatus.h"
#include "LaTeXFeatures.h"
#include "LyX.h"
#include "LyXRC.h"
#include "MetricsInfo.h"
#include "TexRow.h"
#include "Text.h"
#include "frontends/Application.h"
#include "frontends/Clipboard.h"
#include "frontends/Painter.h"
#include "frontends/Selection.h"
#include "support/debug.h"
#include "support/docstream.h"
#include "support/gettext.h"
#include "support/lassert.h"
#include "support/lstrings.h"
#include "support/textutils.h"
#include <algorithm>
#include <sstream>
using namespace std;
using namespace lyx::support;
namespace lyx {
using cap::copySelection;
using cap::grabAndEraseSelection;
using cap::cutSelection;
using cap::replaceSelection;
using cap::selClearOrDel;
InsetMathNest::InsetMathNest(Buffer * buf, idx_type nargs)
: InsetMath(buf), cells_(nargs), lock_(false)
{
// FIXME This should not really be necessary, but when we are
// initializing the table of global macros, we create macros
// with no associated Buffer.
if (buf)
setBuffer(*buf);
}
InsetMathNest::InsetMathNest(InsetMathNest const & inset)
: InsetMath(inset), cells_(inset.cells_), lock_(inset.lock_)
{}
InsetMathNest::~InsetMathNest()
{
map<BufferView const *, bool>::iterator it = mouse_hover_.begin();
map<BufferView const *, bool>::iterator end = mouse_hover_.end();
for (; it != end; ++it)
if (it->second)
it->first->clearLastInset(this);
}
InsetMathNest & InsetMathNest::operator=(InsetMathNest const & inset)
{
cells_ = inset.cells_;
lock_ = inset.lock_;
mouse_hover_.clear();
InsetMath::operator=(inset);
return *this;
}
void InsetMathNest::setBuffer(Buffer & buffer)
{
InsetMath::setBuffer(buffer);
for (MathData & data : cells_)
data.setBuffer(buffer);
}
idx_type InsetMathNest::nargs() const
{
return cells_.size();
}
void InsetMathNest::cursorPos(BufferView const & bv,
CursorSlice const & sl, bool /*boundary*/,
int & x, int & y) const
{
// FIXME: This is a hack. Ideally, the coord cache should not store
// absolute positions, but relative ones. This would mean to call
// setXY() not in MathData::draw(), but in the parent insets' draw()
// with the correctly adjusted x,y values. But this means that we'd have
// to touch all (math)inset's draw() methods. Right now, we'll store
// absolute value, and make them here relative, only to make them
// absolute again when actually drawing the cursor. What a mess.
LASSERT(&sl.inset() == this, return);
MathData const & ar = sl.cell();
CoordCache const & coord_cache = bv.coordCache();
if (!coord_cache.getArrays().has(&ar)) {
// this can (semi-)legally happen if we just created this cell
// and it never has been drawn before. So don't ASSERT.
//lyxerr << "no cached data for array " << &ar << endl;
x = 0;
y = 0;
return;
}
Point const pt = coord_cache.getArrays().xy(&ar);
if (!coord_cache.getInsets().has(this)) {
// same as above
//lyxerr << "no cached data for inset " << this << endl;
x = 0;
y = 0;
return;
}
Point const pt2 = coord_cache.getInsets().xy(this);
//lyxerr << "retrieving position cache for MathData "
// << pt.x_ << ' ' << pt.y_ << endl;
x = pt.x_ - pt2.x_ + ar.pos2x(&bv, sl.pos());
y = pt.y_ - pt2.y_;
// lyxerr << "pt.y_ : " << pt.y_ << " pt2_.y_ : " << pt2.y_
// << " asc: " << ascent() << " des: " << descent()
// << " ar.asc: " << ar.ascent() << " ar.des: " << ar.descent() << endl;
// move cursor visually into empty cells ("blue rectangles");
if (ar.empty()) {
Dimension const dim = coord_cache.getArrays().dim(&ar);
x += dim.wid / 3;
}
}
void InsetMathNest::cellsMetrics(MetricsInfo const & mi) const
{
MetricsInfo m = mi;
for (auto const & cell : cells_) {
Dimension dim;
cell.metrics(m, dim);
}
}
void InsetMathNest::updateBuffer(ParIterator const & it, UpdateType utype, bool const deleted)
{
for (idx_type i = 0, n = nargs(); i != n; ++i)
cell(i).updateBuffer(it, utype, deleted);
}
bool InsetMathNest::idxNext(Cursor & cur) const
{
LASSERT(&cur.inset() == this, return false);
if (cur.idx() == cur.lastidx())
return false;
++cur.idx();
cur.pos() = 0;
return true;
}
bool InsetMathNest::idxForward(Cursor & cur) const
{
return idxNext(cur);
}
bool InsetMathNest::idxPrev(Cursor & cur) const
{
LASSERT(&cur.inset() == this, return false);
if (cur.idx() == 0)
return false;
--cur.idx();
cur.pos() = lyxrc.mac_like_cursor_movement ? cur.lastpos() : 0;
return true;
}
bool InsetMathNest::idxBackward(Cursor & cur) const
{
return idxPrev(cur);
}
bool InsetMathNest::idxFirst(Cursor & cur) const
{
LASSERT(&cur.inset() == this, return false);
if (nargs() == 0)
return false;
cur.idx() = firstIdx();
cur.pos() = 0;
return true;
}
bool InsetMathNest::idxLast(Cursor & cur) const
{
LASSERT(&cur.inset() == this, return false);
if (nargs() == 0)
return false;
cur.idx() = lastIdx();
cur.pos() = cur.lastpos();
return true;
}
void InsetMathNest::dump() const
{
odocstringstream oss;
otexrowstream ots(oss);
TeXMathStream os(ots);
os << "---------------------------------------------\n";
write(os);
os << "\n";
for (idx_type i = 0, n = nargs(); i != n; ++i)
os << cell(i) << "\n";
os << "---------------------------------------------\n";
lyxerr << to_utf8(oss.str());
}
void InsetMathNest::draw(PainterInfo &, int, int) const
{
#if 0
if (lock_)
pi.pain.fillRectangle(x, y - ascent(), width(), height(),
Color_mathlockbg);
#endif
}
void InsetMathNest::validate(LaTeXFeatures & features) const
{
for (idx_type i = 0; i < nargs(); ++i)
cell(i).validate(features);
}
void InsetMathNest::replace(ReplaceData & rep)
{
for (idx_type i = 0; i < nargs(); ++i)
cell(i).replace(rep);
}
bool InsetMathNest::contains(MathData const & ar) const
{
for (idx_type i = 0; i < nargs(); ++i)
if (cell(i).contains(ar))
return true;
return false;
}
bool InsetMathNest::lock() const
{
return lock_;
}
void InsetMathNest::lock(bool l)
{
lock_ = l;
}
bool InsetMathNest::isActive() const
{
return nargs() > 0;
}
MathData InsetMathNest::glue() const
{
MathData ar;
for (size_t i = 0; i < nargs(); ++i)
ar.append(cell(i));
return ar;
}
void InsetMathNest::write(TeXMathStream & os) const
{
MathEnsurer ensurer(os, currentMode() == MATH_MODE);
ModeSpecifier specifier(os, currentMode(), lockedMode());
docstring const latex_name = name();
os << '\\' << latex_name;
os.inMathClass(asClassInset());
for (size_t i = 0; i < nargs(); ++i) {
Changer dummy = os.changeRowEntry(TexRow::mathEntry(id(),i));
os << '{' << cell(i) << '}';
}
if (nargs() == 0)
os.pendingSpace(true);
if (lock_ && !os.latex()) {
os << "\\lyxlock";
os.pendingSpace(true);
}
os.inMathClass(false);
}
void InsetMathNest::normalize(NormalStream & os) const
{
os << '[' << name();
for (size_t i = 0; i < nargs(); ++i)
os << ' ' << cell(i);
os << ']';
}
void InsetMathNest::latex(otexstream & os, OutputParams const & runparams) const
{
TeXMathStream wi(os, runparams.moving_arg, true,
runparams.dryrun ? TeXMathStream::wsDryrun : TeXMathStream::wsDefault,
runparams.encoding);
wi.strikeoutMath(runparams.inDeletedInset);
if (runparams.inulemcmd) {
wi.ulemCmd(TeXMathStream::UNDERLINE);
if (runparams.local_font) {
FontInfo f = runparams.local_font->fontInfo();
if (f.strikeout() == FONT_ON)
wi.ulemCmd(TeXMathStream::STRIKEOUT);
}
}
wi.canBreakLine(os.canBreakLine());
Changer dummy = wi.changeRowEntry(TexRow::textEntry(runparams.lastid,
runparams.lastpos));
write(wi);
// Reset parbreak and command termination status after a math inset.
os.lastChar(0);
os.canBreakLine(wi.canBreakLine());
os.terminateCommand(false);
}
bool InsetMathNest::setMouseHover(BufferView const * bv, bool mouse_hover)
const
{
mouse_hover_[bv] = mouse_hover;
return true;
}
bool InsetMathNest::notifyCursorLeaves(Cursor const & /*old*/, Cursor & /*cur*/)
{
// FIXME: look here
#if 0
MathData & ar = cur.cell();
// remove base-only "scripts"
for (pos_type i = 0; i + 1 < ar.size(); ++i) {
InsetMathScript * p = operator[](i).nucleus()->asScriptInset();
if (p && p->nargs() == 1) {
MathData ar = p->nuc();
erase(i);
insert(i, ar);
cur.adjust(i, ar.size() - 1);
}
}
// glue adjacent font insets of the same kind
for (pos_type i = 0; i + 1 < size(); ++i) {
InsetMathFont * p = operator[](i).nucleus()->asFontInset();
InsetMathFont const * q = operator[](i + 1)->asFontInset();
if (p && q && p->name() == q->name()) {
p->cell(0).append(q->cell(0));
erase(i + 1);
cur.adjust(i, -1);
}
}
#endif
return false;
}
void InsetMathNest::handleFont
(Cursor & cur, docstring const & arg, char const * const font)
{
handleFont(cur, arg, from_ascii(font));
}
void InsetMathNest::handleFont(Cursor & cur, docstring const & arg,
docstring const & font)
{
cur.recordUndoSelection();
// this whole function is a hack and won't work for incremental font
// changes...
if (cur.inset().asInsetMath()->name() == font)
cur.handleFont(to_utf8(font));
else
handleNest(cur, createInsetMath(font, cur.buffer()), arg);
}
void InsetMathNest::handleNest(Cursor & cur, MathAtom const & nest)
{
handleNest(cur, nest, docstring());
}
void InsetMathNest::handleNest(Cursor & cur, MathAtom const & nest,
docstring const & arg)
{
DocIterator const i1 = cur.selectionBegin();
DocIterator const i2 = cur.selectionEnd();
if (!i1.inset().asInsetMath())
return;
if (i1.idx() == i2.idx()) {
// the easy case where only one cell is selected
cur.handleNest(nest);
cur.insert(arg);
return;
}
// multiple selected cells in a simple non-grid inset
if (i1.inset().nrows() == 0 || i1.inset().ncols() == 0) {
for (idx_type i = i1.idx(); i <= i2.idx(); ++i) {
cur.setCursor(i1);
// select cell
cur.idx() = i;
cur.pos() = 0;
cur.resetAnchor();
cur.pos() = cur.lastpos();
cur.setSelection();
// do the real job
cur.handleNest(nest);
cur.insert(arg);
}
return;
}
// the complicated case with multiple selected cells in a grid
row_type r1, r2;
col_type c1, c2;
cap::region(i1.top(), i2.top(), r1, r2, c1, c2);
for (row_type row = r1; row <= r2; ++row) {
for (col_type col = c1; col <= c2; ++col) {
cur.setCursor(i1);
// select cell
cur.idx() = i1.inset().index(row, col);
cur.pos() = 0;
cur.resetAnchor();
cur.pos() = cur.lastpos();
cur.setSelection();
// do the real job
cur.handleNest(nest);
cur.insert(arg);
}
}
}
void InsetMathNest::handleFont2(Cursor & cur, docstring const & arg)
{
cur.recordUndoSelection();
Font font;
bool b;
font.fromString(to_utf8(arg), b);
if (font.fontInfo().color() != Color_inherit &&
font.fontInfo().color() != Color_ignore)
handleNest(cur, MathAtom(new InsetMathColor(buffer_, true, font.fontInfo().color())));
// FIXME: support other font changes here as well?
}
void InsetMathNest::doDispatch(Cursor & cur, FuncRequest & cmd)
{
//LYXERR0("InsetMathNest: request: " << cmd);
Parse::flags parseflg = Parse::QUIET | Parse::USETEXT;
FuncCode const act = cmd.action();
switch (act) {
case LFUN_CLIPBOARD_PASTE:
parseflg |= Parse::VERBATIM;
// fall through
case LFUN_PASTE: {
if (cur.currentMode() != MATH_MODE)
parseflg |= Parse::TEXTMODE;
cur.recordUndoSelection();
cur.message(_("Paste"));
replaceSelection(cur);
docstring topaste;
if (cmd.argument().empty() && !theClipboard().isInternal())
topaste = theClipboard().getAsText(frontend::Clipboard::PlainTextType);
else {
size_t n = 0;
idocstringstream is(cmd.argument());
is >> n;
topaste = cap::selection(n, make_pair(buffer().params().documentClassPtr(),
buffer().params().authors()));
}
cur.niceInsert(topaste, parseflg, false);
cur.clearSelection(); // bug 393
cur.forceBufferUpdate();
cur.finishUndo();
break;
}
case LFUN_CUT:
cur.recordUndo();
cutSelection(cur, true);
cur.message(_("Cut"));
// Prevent stale position >= size crash
// Probably not necessary anymore, see eraseSelection (gb 2005-10-09)
cur.normalize();
cur.forceBufferUpdate();
break;
case LFUN_MOUSE_PRESS:
lfunMousePress(cur, cmd);
break;
case LFUN_MOUSE_MOTION:
lfunMouseMotion(cur, cmd);
break;
case LFUN_MOUSE_RELEASE:
lfunMouseRelease(cur, cmd);
break;
case LFUN_FINISHED_LEFT: // in math, left is backwards
case LFUN_FINISHED_BACKWARD:
cur.bv().cursor() = cur;
break;
case LFUN_FINISHED_RIGHT: // in math, right is forward
case LFUN_FINISHED_FORWARD:
++cur.pos();
cur.bv().cursor() = cur;
break;
case LFUN_WORD_RIGHT:
case LFUN_WORD_LEFT:
case LFUN_WORD_BACKWARD:
case LFUN_WORD_FORWARD:
case LFUN_CHAR_RIGHT:
case LFUN_CHAR_LEFT:
case LFUN_CHAR_BACKWARD:
case LFUN_CHAR_FORWARD:
cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
// fall through
case LFUN_WORD_RIGHT_SELECT:
case LFUN_WORD_LEFT_SELECT:
case LFUN_WORD_BACKWARD_SELECT:
case LFUN_WORD_FORWARD_SELECT:
case LFUN_CHAR_RIGHT_SELECT:
case LFUN_CHAR_LEFT_SELECT:
case LFUN_CHAR_BACKWARD_SELECT:
case LFUN_CHAR_FORWARD_SELECT: {
// are we in a selection?
bool select = (act == LFUN_WORD_RIGHT_SELECT
|| act == LFUN_WORD_LEFT_SELECT
|| act == LFUN_WORD_BACKWARD_SELECT
|| act == LFUN_WORD_FORWARD_SELECT
|| act == LFUN_CHAR_RIGHT_SELECT
|| act == LFUN_CHAR_LEFT_SELECT
|| act == LFUN_CHAR_BACKWARD_SELECT
|| act == LFUN_CHAR_FORWARD_SELECT);
// select words
bool word = (act == LFUN_WORD_RIGHT_SELECT
|| act == LFUN_WORD_LEFT_SELECT
|| act == LFUN_WORD_BACKWARD_SELECT
|| act == LFUN_WORD_FORWARD_SELECT
|| act == LFUN_WORD_RIGHT
|| act == LFUN_WORD_LEFT
|| act == LFUN_WORD_BACKWARD
|| act == LFUN_WORD_FORWARD);
// are we moving forward or backwards?
// If the command was RIGHT or LEFT, then whether we're moving forward
// or backwards depends on the cursor movement mode (logical or visual):
// * in visual mode, since math is always LTR, right -> forward,
// left -> backwards
// * in logical mode, the mapping is determined by the
// reverseDirectionNeeded() function
bool forward;
FuncCode finish_lfun;
if (act == LFUN_CHAR_FORWARD
|| act == LFUN_CHAR_FORWARD_SELECT
|| act == LFUN_WORD_FORWARD
|| act == LFUN_WORD_FORWARD_SELECT) {
forward = true;
finish_lfun = LFUN_FINISHED_FORWARD;
}
else if (act == LFUN_CHAR_BACKWARD
|| act == LFUN_CHAR_BACKWARD_SELECT
|| act == LFUN_WORD_BACKWARD
|| act == LFUN_WORD_BACKWARD_SELECT) {
forward = false;
finish_lfun = LFUN_FINISHED_BACKWARD;
}
else {
bool right = (act == LFUN_CHAR_RIGHT_SELECT
|| act == LFUN_CHAR_RIGHT
|| act == LFUN_WORD_RIGHT_SELECT
|| act == LFUN_WORD_RIGHT);
if (lyxrc.visual_cursor || !cur.reverseDirectionNeeded())
forward = right;
else
forward = !right;
if (right)
finish_lfun = LFUN_FINISHED_RIGHT;
else
finish_lfun = LFUN_FINISHED_LEFT;
}
// Now that we know exactly what we want to do, let's do it!
cur.selHandle(select);
cur.clearTargetX();
cur.macroModeClose();
// try moving forward or backwards as necessary...
if (!(forward ? cur.mathForward(word) : cur.mathBackward(word))) {
// ... and if movement failed, then finish forward or backwards
// as necessary
cmd = FuncRequest(finish_lfun);
cur.undispatched();
}
break;
}
case LFUN_DOWN:
case LFUN_UP:
case LFUN_PARAGRAPH_UP:
case LFUN_PARAGRAPH_DOWN:
cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
// fall through
case LFUN_DOWN_SELECT:
case LFUN_UP_SELECT:
case LFUN_PARAGRAPH_UP_SELECT:
case LFUN_PARAGRAPH_DOWN_SELECT: {
// close active macro
if (cur.inMacroMode()) {
cur.macroModeClose();
break;
}
// stop/start the selection
bool select = act == LFUN_DOWN_SELECT
|| act == LFUN_UP_SELECT
|| act == LFUN_PARAGRAPH_DOWN_SELECT
|| act == LFUN_PARAGRAPH_UP_SELECT;
cur.selHandle(select);
// go up/down
bool up = act == LFUN_UP || act == LFUN_UP_SELECT
|| act == LFUN_PARAGRAPH_UP || act == LFUN_PARAGRAPH_UP_SELECT;
bool successful = cur.upDownInMath(up);
if (successful)
break;
if (cur.fixIfBroken())
// FIXME: Something bad happened. We pass the corrected Cursor
// instead of letting things go worse.
break;
// We did not manage to move the cursor.
cur.undispatched();
break;
}
case LFUN_MOUSE_DOUBLE:
case LFUN_WORD_SELECT:
cur.pos() = 0;
cur.bv().mouseSetCursor(cur);
cur.pos() = cur.lastpos();
cur.bv().mouseSetCursor(cur, true);
break;
case LFUN_MOUSE_TRIPLE:
cur.idx() = 0;
cur.pos() = 0;
cur.bv().mouseSetCursor(cur);
cur.idx() = cur.lastidx();
cur.pos() = cur.lastpos();
cur.bv().mouseSetCursor(cur, true);
break;
case LFUN_LINE_BEGIN:
cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
// fall through
case LFUN_LINE_BEGIN_SELECT:
cur.selHandle(act == LFUN_WORD_BACKWARD_SELECT ||
act == LFUN_WORD_LEFT_SELECT ||
act == LFUN_LINE_BEGIN_SELECT);
cur.macroModeClose();
if (cur.pos() != 0) {
cur.pos() = 0;
} else if (cur.col() != 0) {
cur.idx() -= cur.col();
cur.pos() = 0;
} else if (cur.idx() != 0) {
cur.idx() = 0;
cur.pos() = 0;
} else {
cmd = FuncRequest(LFUN_FINISHED_BACKWARD);
cur.undispatched();
}
break;
case LFUN_LINE_END:
cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
// fall through
case LFUN_LINE_END_SELECT:
cur.selHandle(act == LFUN_WORD_FORWARD_SELECT ||
act == LFUN_WORD_RIGHT_SELECT ||
act == LFUN_LINE_END_SELECT);
cur.macroModeClose();
cur.clearTargetX();
if (cur.pos() != cur.lastpos()) {
cur.pos() = cur.lastpos();
} else if (ncols() && (cur.col() != cur.lastcol())) {
cur.idx() = cur.idx() - cur.col() + cur.lastcol();
cur.pos() = cur.lastpos();
} else if (cur.idx() != cur.lastidx()) {
cur.idx() = cur.lastidx();
cur.pos() = cur.lastpos();
} else {
cmd = FuncRequest(LFUN_FINISHED_FORWARD);
cur.undispatched();
}
break;
case LFUN_CELL_FORWARD:
cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
cur.selHandle(false);
cur.clearTargetX();
cur.macroModeClose();
if (!cur.inset().idxNext(cur)) {
cur.idx() = firstIdx();
cur.pos() = 0;
}
break;
case LFUN_CELL_BACKWARD:
cur.screenUpdateFlags(Update::Decoration | Update::FitCursor);
cur.selHandle(false);
cur.clearTargetX();
cur.macroModeClose();
if (!cur.inset().idxPrev(cur)) {
cur.idx() = cur.lastidx();
cur.pos() = lyxrc.mac_like_cursor_movement ? cur.lastpos() : 0;
}
break;
case LFUN_WORD_DELETE_BACKWARD:
case LFUN_CHAR_DELETE_BACKWARD:
if (cur.pos() == 0)
// May affect external cell:
cur.recordUndoInset();
else if (!cur.inMacroMode())
cur.recordUndoSelection();
// if the inset can not be removed from within, delete it
if (!cur.backspace(cmd.getArg(0) == "force")) {
FuncRequest newcmd = FuncRequest(LFUN_CHAR_DELETE_FORWARD, "force");
cur.innerText()->dispatch(cur, newcmd);
}
break;
case LFUN_WORD_DELETE_FORWARD:
case LFUN_CHAR_DELETE_FORWARD:
if (cur.pos() == cur.lastpos())
// May affect external cell:
cur.recordUndoInset();
else
cur.recordUndoSelection();
// if the inset can not be removed from within, delete it
if (!cur.erase(cmd.getArg(0) == "force")) {
FuncRequest newcmd = FuncRequest(LFUN_CHAR_DELETE_FORWARD, "force");
cur.innerText()->dispatch(cur, newcmd);
}
break;
case LFUN_ESCAPE:
if (cur.selection())
cur.clearSelection();
else {
if (cur.inMacroMode())
cur.macroModeClose(true);
else {
cmd = FuncRequest(LFUN_FINISHED_FORWARD);
cur.undispatched();
}
}
break;
// 'Locks' the math inset. A 'locked' math inset behaves as a unit
// that is traversed by a single <CursorLeft>/<CursorRight>.
case LFUN_INSET_TOGGLE:
cur.recordUndo();
lock(!lock());
cur.popForward();
break;
case LFUN_SELF_INSERT:
// special case first for big delimiters
if (cmd.argument().size() != 1 && interpretString(cur, cmd.argument()))
break;
for (char_type c : cmd.argument()) {
// Don't record undo steps if we are in macro mode and thus
// cmd.argument is the next character of the macro name.
// Otherwise we'll get an invalid cursor if we undo after
// the macro was finished and the macro is a known command,
// e.g. sqrt. Cursor::macroModeClose replaces in this case
// the InsetMathUnknown with name "frac" by an empty
// InsetMathFrac -> a pos value > 0 is invalid.
// A side effect is that an undo before the macro is finished
// undoes the complete macro, not only the last character.
// At the time we hit '\' we are not in macro mode, still.
if (!cur.inMacroMode())
cur.recordUndoSelection();
// special handling of space. If we insert an inset
// via macro mode, we want to put the cursor inside it
// if relevant. Think typing "\frac<space>".
if (c == ' '
&& cur.inMacroMode() && cur.macroName() != "\\"
&& cur.macroModeClose() && cur.pos() > 0)
cur.editInsertedInset();
else if (!interpretChar(cur, c)) {
cmd = FuncRequest(LFUN_FINISHED_FORWARD);
cur.undispatched();
// FIXME: can we avoid skipping the end of the string?
break;
}
}
break;
//case LFUN_SERVER_GET_XY:
// break;
case LFUN_SERVER_SET_XY: {
lyxerr << "LFUN_SERVER_SET_XY broken!" << endl;
int x = 0;
int y = 0;
istringstream is(to_utf8(cmd.argument()));
is >> x >> y;
cur.setTargetX(x);
break;
}
// Special casing for superscript in case of LyX handling
// dead-keys:
case LFUN_ACCENT_CIRCUMFLEX:
if (cmd.argument().empty()) {
// do superscript if LyX handles
// deadkeys
cur.recordUndoInset();
script(cur, true, grabAndEraseSelection(cur));
}
break;
case LFUN_ACCENT_UMLAUT:
case LFUN_ACCENT_ACUTE:
case LFUN_ACCENT_GRAVE:
case LFUN_ACCENT_BREVE:
case LFUN_ACCENT_DOT:
case LFUN_ACCENT_MACRON:
case LFUN_ACCENT_CARON:
case LFUN_ACCENT_TILDE:
case LFUN_ACCENT_CEDILLA:
case LFUN_ACCENT_CIRCLE:
case LFUN_ACCENT_UNDERDOT:
case LFUN_ACCENT_TIE:
case LFUN_ACCENT_OGONEK:
case LFUN_ACCENT_HUNGARIAN_UMLAUT:
break;
// Math fonts
case LFUN_TEXTSTYLE_APPLY:
case LFUN_TEXTSTYLE_UPDATE:
handleFont2(cur, cmd.argument());
break;
case LFUN_FONT_BOLD:
if (currentMode() != MATH_MODE)
handleFont(cur, cmd.argument(), "textbf");
else
handleFont(cur, cmd.argument(), "mathbf");
break;
case LFUN_FONT_BOLDSYMBOL:
if (currentMode() != MATH_MODE)
handleFont(cur, cmd.argument(), "textbf");
else
handleFont(cur, cmd.argument(), "boldsymbol");
break;
case LFUN_FONT_SANS:
if (currentMode() != MATH_MODE)
handleFont(cur, cmd.argument(), "textsf");
else
handleFont(cur, cmd.argument(), "mathsf");
break;
case LFUN_FONT_EMPH:
if (currentMode() != MATH_MODE)
handleFont(cur, cmd.argument(), "emph");
else
handleFont(cur, cmd.argument(), "mathcal");
break;
case LFUN_FONT_ROMAN:
if (currentMode() != MATH_MODE)
handleFont(cur, cmd.argument(), "textrm");
else
handleFont(cur, cmd.argument(), "mathrm");
break;
case LFUN_FONT_TYPEWRITER:
if (currentMode() != MATH_MODE)
handleFont(cur, cmd.argument(), "texttt");
else
handleFont(cur, cmd.argument(), "mathtt");
break;
case LFUN_FONT_FRAK:
handleFont(cur, cmd.argument(), "mathfrak");
break;
case LFUN_FONT_ITAL:
if (currentMode() != MATH_MODE)
handleFont(cur, cmd.argument(), "textit");
else
handleFont(cur, cmd.argument(), "mathit");
break;
case LFUN_FONT_NOUN:
if (currentMode() != MATH_MODE)
// FIXME: should be "noun"
handleFont(cur, cmd.argument(), "textsc");
else
handleFont(cur, cmd.argument(), "mathbb");
break;
case LFUN_FONT_DEFAULT:
handleFont(cur, cmd.argument(), "textnormal");
break;
case LFUN_FONT_UNDERLINE:
cur.recordUndo();
cur.handleNest(createInsetMath("underline", cur.buffer()));
break;
case LFUN_MATH_MODE: {
#if 1
// ignore math-mode on when already in math mode
if (currentMode() == Inset::MATH_MODE && cmd.argument() == "on")
break;
cur.recordUndoSelection();
cur.macroModeClose();
docstring const save_selection = grabAndEraseSelection(cur);
selClearOrDel(cur);
if (currentMode() != Inset::MATH_MODE)
cur.plainInsert(MathAtom(new InsetMathEnsureMath(buffer_)));
else
cur.plainInsert(createInsetMath("text", buffer_));
cur.posBackward();
cur.pushBackward(*cur.nextInset());
cur.niceInsert(save_selection);
cur.forceBufferUpdate();
#else
if (currentMode() == Inset::TEXT_MODE) {
cur.recordUndoSelection();
cur.niceInsert(MathAtom(new InsetMathHull("simple", cur.buffer())));
cur.message(_("create new math text environment ($...$)"));
} else {
handleFont(cur, cmd.argument(), "textrm");
cur.message(_("entered math text mode (textrm)"));
}
#endif
break;
}
case LFUN_REGEXP_MODE: {
InsetMath * im = cur.inset().asInsetMath();
if (im) {
InsetMathHull * i = im->asHullInset();
if (i && i->getType() == hullRegexp) {
cur.message(_("Already in regular expression mode"));
break;
}
}
cur.macroModeClose();
docstring const save_selection = grabAndEraseSelection(cur);
selClearOrDel(cur);
cur.plainInsert(MathAtom(new InsetMathHull(buffer_, hullRegexp)));
cur.posBackward();
cur.pushBackward(*cur.nextInset());
cur.niceInsert(save_selection);
cur.message(_("Regular expression editor mode"));
break;
}
case LFUN_MATH_FONT_STYLE: {
FuncRequest fr = FuncRequest(LFUN_MATH_INSERT, '\\' + cmd.argument());
doDispatch(cur, fr);
break;
}
case LFUN_MATH_SIZE: {
FuncRequest fr = FuncRequest(LFUN_MATH_INSERT, cmd.argument());
doDispatch(cur, fr);
break;
}
case LFUN_MATH_MATRIX: {
cur.recordUndo();
unsigned int m = 1;
unsigned int n = 1;
docstring v_align;
docstring h_align;
idocstringstream is(cmd.argument());
is >> m >> n >> v_align >> h_align;
if (m < 1)
m = 1;
if (n < 1)
n = 1;
v_align += 'c';
cur.niceInsert(MathAtom(new InsetMathArray(buffer_,
from_ascii("array"), m, n, (char)v_align[0], h_align)));
break;
}
case LFUN_MATH_AMS_MATRIX: {
cur.recordUndo();
unsigned int m = 1;
unsigned int n = 1;
docstring name = from_ascii("matrix");
idocstringstream is(cmd.argument());
is >> m >> n >> name;
if (m < 1)
m = 1;
if (n < 1)
n = 1;
// check if we have a valid decoration
if (name != "pmatrix" && name != "bmatrix"
&& name != "Bmatrix" && name != "vmatrix"
&& name != "Vmatrix" && name != "matrix"
&& name != "smallmatrix")
name = from_ascii("matrix");
cur.niceInsert(
MathAtom(new InsetMathAMSArray(buffer_, name, m, n)));
break;
}
case LFUN_MATH_DELIM: {
docstring ls;
docstring rs = split(cmd.argument(), ls, ' ');
// Reasonable default values
if (ls.empty())
ls = '(';
if (rs.empty())
rs = ')';
cur.recordUndo();
cur.handleNest(MathAtom(new InsetMathDelim(buffer_, ls, rs)));
break;
}
case LFUN_MATH_BIGDELIM: {
docstring const lname = from_utf8(cmd.getArg(0));
docstring const ldelim = from_utf8(cmd.getArg(1));
docstring const rname = from_utf8(cmd.getArg(2));
docstring const rdelim = from_utf8(cmd.getArg(3));
latexkeys const * l = in_word_set(lname);
bool const have_l = l && l->inset == "big" &&
InsetMathBig::isBigInsetDelim(ldelim);
l = in_word_set(rname);
bool const have_r = l && l->inset == "big" &&
InsetMathBig::isBigInsetDelim(rdelim);
// We mimic LFUN_MATH_DELIM in case we have an empty left
// or right delimiter.
if (have_l || have_r) {
cur.recordUndo();
docstring const selection = grabAndEraseSelection(cur);
selClearOrDel(cur);
if (have_l)
cur.insert(MathAtom(new InsetMathBig(lname,
ldelim)));
// first insert the right delimiter and then go back
// and re-insert the selection (bug 7088)
if (have_r) {
cur.insert(MathAtom(new InsetMathBig(rname,
rdelim)));
cur.posBackward();
}
cur.niceInsert(selection);
}
// Don't call cur.undispatched() if we did nothing, this would
// lead to infinite recursion via Text::dispatch().
break;
}
case LFUN_SPACE_INSERT: {
cur.recordUndoSelection();
string const name = cmd.getArg(0);
if (name == "normal")
cur.insert(MathAtom(new InsetMathSpace(" ", "")));
else if (name == "protected")
cur.insert(MathAtom(new InsetMathSpace("~", "")));
else if (name == "thin" || name == "med" || name == "thick")
cur.insert(MathAtom(new InsetMathSpace(name + "space", "")));
else if (name == "hfill*")
cur.insert(MathAtom(new InsetMathSpace("hspace*{\\fill}", "")));
else if (name == "quad" || name == "qquad" ||
name == "enspace" || name == "enskip" ||
name == "negthinspace" || name == "negmedspace" ||
name == "negthickspace" || name == "hfill")
cur.insert(MathAtom(new InsetMathSpace(name, "")));
else if (name == "hspace" || name == "hspace*") {
string const len = cmd.getArg(1);
if (len.empty() || !isValidLength(len)) {
lyxerr << "LyX function 'space-insert " << name << "' "
"needs a valid length argument." << endl;
break;
}
cur.insert(MathAtom(new InsetMathSpace(name, len)));
} else
cur.insert(MathAtom(new InsetMathSpace));
break;
}
case LFUN_MATH_SPACE:
cur.recordUndoSelection();
if (cmd.argument().empty())
cur.insert(MathAtom(new InsetMathSpace));
else {
string const name = cmd.getArg(0);
string const len = cmd.getArg(1);
cur.insert(MathAtom(new InsetMathSpace(name, len)));
}
break;
case LFUN_ERT_INSERT:
// interpret this as if a backslash was typed
cur.recordUndo();
interpretChar(cur, '\\');
break;
case LFUN_MATH_SUBSCRIPT:
// interpret this as if a _ was typed
cur.recordUndoSelection();
interpretChar(cur, '_');
break;
case LFUN_MATH_SUPERSCRIPT:
// interpret this as if a ^ was typed
cur.recordUndoSelection();
interpretChar(cur, '^');
break;
case LFUN_MATH_MACRO_FOLD:
case LFUN_MATH_MACRO_UNFOLD: {
Cursor it = cur;
bool fold = act == LFUN_MATH_MACRO_FOLD;
bool found = findMacroToFoldUnfold(it, fold);
if (found) {
InsetMathMacro * macro = it.nextInset()->asInsetMath()->asMacro();
cur.recordUndoInset();
if (fold)
macro->fold(cur);
else
macro->unfold(cur);
}
break;
}
case LFUN_QUOTE_INSERT:
// interpret this as if a straight " was typed
cur.recordUndoSelection();
interpretChar(cur, '\"');
break;
// 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_MATH_INSERT: {
cur.recordUndoSelection();
if (cmd.argument() == "^" || cmd.argument() == "_")
interpretChar(cur, cmd.argument()[0]);
else if (!cur.selection())
cur.niceInsert(cmd.argument());
else {
MathData ar(cur.buffer());
asArray(cmd.argument(), ar);
if (ar.size() == 1
&& ar[0]->asNestInset()
&& ar[0]->asNestInset()->nargs() > 1)
handleNest(cur, ar[0]);
else
cur.niceInsert(cmd.argument());
}
break;
}
case LFUN_DIALOG_SHOW_NEW_INSET: {
docstring const & name = cmd.argument();
string data;
if (name == "ref") {
InsetMathRef tmp(buffer_, name);
data = tmp.createDialogStr();
cur.bv().showDialog(to_utf8(name), data);
} else if (name == "mathspace") {
cur.bv().showDialog(to_utf8(name));
}
break;
}
case LFUN_INSET_INSERT: {
MathData ar;
if (createInsetMath_fromDialogStr(cmd.argument(), ar)) {
cur.recordUndoSelection();
cur.insert(ar);
cur.forceBufferUpdate();
} else
cur.undispatched();
break;
}
case LFUN_INSET_DISSOLVE:
if (!asHullInset()) {
cur.recordUndoInset();
cur.pullArg();
}
break;
case LFUN_MATH_LIMITS: {
InsetMath * in = 0;
if (cur.pos() < cur.lastpos() && cur.nextMath().allowsLimitsChange())
in = &cur.nextMath();
else if (cur.pos() > 0 && cur.prevMath().allowsLimitsChange())
in = &cur.prevMath();
else if (cur.lastpos() > 0 && cur.cell().back()->allowsLimitsChange())
in = cur.cell().back().nucleus();
// only when nucleus allows this
if (!in)
return;
cur.recordUndoInset();
if (!cmd.argument().empty()) {
if (cmd.argument() == "limits")
in->limits(LIMITS);
else if (cmd.argument() == "nolimits")
in->limits(NO_LIMITS);
else
in->limits(AUTO_LIMITS);
} else if (in->limits() != AUTO_LIMITS)
in->limits(AUTO_LIMITS);
else if (in->defaultLimits(cur.cell().displayStyle()) == LIMITS)
in->limits(NO_LIMITS);
else
in->limits(LIMITS);
return;
}
case LFUN_PHANTOM_INSERT: {
docstring const & arg = cmd.argument();
docstring newarg;
if (arg == "Phantom")
newarg = from_ascii("\\phantom");
else if (arg == "HPhantom")
newarg = from_ascii("\\hphantom");
else if (arg == "VPhantom")
newarg = from_ascii("\\vphantom");
if (newarg.empty())
LYXERR0("Unknown phantom type " + newarg);
else {
FuncRequest const newfunc(LFUN_MATH_INSERT, newarg);
lyx::dispatch(newfunc);
}
break;
}
default:
InsetMath::doDispatch(cur, cmd);
break;
}
}
bool InsetMathNest::findMacroToFoldUnfold(Cursor & it, bool fold) const {
// look for macro to open/close, but stay in mathed
for (; !it.empty(); it.pop_back()) {
// go backward through the current cell
Inset * inset = it.nextInset();
while (inset && inset->asInsetMath()) {
InsetMathMacro * macro = inset->asInsetMath()->asMacro();
if (macro) {
// found the an macro to open/close?
if (macro->folded() != fold)
return true;
// Wrong folding state.
// If this was the first we see in this slice, look further left,
// otherwise go up.
if (inset != it.nextInset())
break;
}
// go up if this was the left most position
if (it.pos() == 0)
break;
// go left
it.pos()--;
inset = it.nextInset();
}
}
return false;
}
bool InsetMathNest::getStatus(Cursor & cur, FuncRequest const & cmd,
FuncStatus & flag) const
{
// the font related toggles
//string tc = "mathnormal";
bool ret = true;
string const arg = to_utf8(cmd.argument());
switch (cmd.action()) {
#if 0
case LFUN_INSET_MODIFY:
// FIXME: check temporarily disabled
// valign code
char align = mathcursor::valign();
if (align == '\0') {
enable = false;
break;
}
if (cmd.argument().empty()) {
flag.clear();
break;
}
if (!contains("tcb", cmd.argument()[0])) {
enable = false;
break;
}
flag.setOnOff(cmd.argument()[0] == align);
break;
#endif
/// We have to handle them since 1.4 blocks all unhandled actions
case LFUN_FONT_ITAL:
case LFUN_FONT_BOLD:
case LFUN_FONT_BOLDSYMBOL:
case LFUN_FONT_SANS:
case LFUN_FONT_EMPH:
case LFUN_FONT_TYPEWRITER:
case LFUN_FONT_NOUN:
case LFUN_FONT_ROMAN:
case LFUN_FONT_DEFAULT:
flag.setEnabled(true);
break;
// we just need to be in math mode to enable that
case LFUN_MATH_SIZE:
case LFUN_MATH_SPACE:
case LFUN_MATH_EXTERN:
flag.setEnabled(true);
break;
case LFUN_FONT_UNDERLINE:
case LFUN_FONT_FRAK:
flag.setEnabled(currentMode() != TEXT_MODE);
break;
case LFUN_MATH_FONT_STYLE: {
bool const textarg =
arg == "textbf" || arg == "textsf" ||
arg == "textrm" || arg == "textmd" ||
arg == "textit" || arg == "textsc" ||
arg == "textsl" || arg == "textup" ||
arg == "texttt" || arg == "textbb" ||
arg == "textnormal";
flag.setEnabled(currentMode() != TEXT_MODE || textarg);
break;
}
case LFUN_MATH_MODE:
// forbid "math-mode on" in math mode to prevent irritating
// behaviour of menu entries (bug 6709)
flag.setEnabled(currentMode() == TEXT_MODE || arg != "on");
break;
case LFUN_MATH_INSERT:
flag.setEnabled(currentMode() != TEXT_MODE);
break;
case LFUN_MATH_AMS_MATRIX:
case LFUN_MATH_MATRIX:
flag.setEnabled(currentMode() == MATH_MODE);
break;
case LFUN_INSET_INSERT: {
// Don't test createMathInset_fromDialogStr(), since
// getStatus is not called with a valid reference and the
// dialog would not be applicable.
string const name = cmd.getArg(0);
flag.setEnabled(name == "ref" || name == "mathspace");
break;
}
case LFUN_DIALOG_SHOW_NEW_INSET: {
docstring const & name = cmd.argument();
if (name == "space")
flag.setEnabled(false);
break;
}
case LFUN_MATH_DELIM:
case LFUN_MATH_BIGDELIM:
// Don't do this with multi-cell selections
flag.setEnabled(cur.selBegin().idx() == cur.selEnd().idx());
break;
case LFUN_MATH_MACRO_FOLD:
case LFUN_MATH_MACRO_UNFOLD: {
Cursor it = cur;
bool found = findMacroToFoldUnfold(it, cmd.action() == LFUN_MATH_MACRO_FOLD);
flag.setEnabled(found);
break;
}
case LFUN_SPECIALCHAR_INSERT:
case LFUN_SCRIPT_INSERT:
// FIXME: These would probably make sense in math-text mode
flag.setEnabled(false);
break;
case LFUN_CAPTION_INSERT:
flag.setEnabled(false);
break;
case LFUN_SPACE_INSERT: {
docstring const & name = cmd.argument();
if (name == "visible")
flag.setEnabled(false);
break;
}
case LFUN_INSET_DISSOLVE:
flag.setEnabled(!asHullInset());
break;
case LFUN_PASTE: {
docstring const & name = cmd.argument();
if (name == "html" || name == "latex")
flag.setEnabled(false);
break;
}
case LFUN_MATH_LIMITS: {
InsetMath * in = 0;
if (cur.pos() < cur.lastpos() && cur.nextMath().allowsLimitsChange())
in = &cur.nextMath();
else if (cur.pos() > 0 && cur.prevMath().allowsLimitsChange())
in = &cur.prevMath();
else if (cur.lastpos() > 0 && cur.cell().back()->allowsLimitsChange())
in = cur.cell().back().nucleus();
if (in) {
if (!cmd.argument().empty()) {
if (cmd.argument() == "limits")
flag.setOnOff(in->limits() == LIMITS);
else if (cmd.argument() == "nolimits")
flag.setOnOff(in->limits() == NO_LIMITS);
else
flag.setOnOff(in->limits() == AUTO_LIMITS);
}
flag.setEnabled(true);
} else
flag.setEnabled(false);
return true;
}
default:
ret = false;
break;
}
return ret;
}
void InsetMathNest::edit(Cursor & cur, bool front, EntryDirection entry_from)
{
cur.push(*this);
bool enter_front = (entry_from == Inset::ENTRY_DIRECTION_LEFT ||
(entry_from == Inset::ENTRY_DIRECTION_IGNORE && front));
enter_front ? idxFirst(cur) : idxLast(cur);
cur.resetAnchor();
//lyxerr << "InsetMathNest::edit, cur:\n" << cur << endl;
}
Inset * InsetMathNest::editXY(Cursor & cur, int x, int y)
{
int idx_min = -1;
int dist_min = 1000000;
for (idx_type i = 0, n = nargs(); i != n; ++i) {
int const d = cell(i).dist(cur.bv(), x, y);
if (d < dist_min) {
dist_min = d;
idx_min = i;
}
}
if (idx_min == -1)
return this;
MathData & ar = cell(idx_min);
cur.push(*this);
cur.idx() = idx_min;
cur.pos() = ar.x2pos(&cur.bv(), x - ar.xo(cur.bv()));
//lyxerr << "found cell : " << idx_min << " pos: " << cur.pos() << endl;
if (dist_min == 0) {
// hit inside cell
for (pos_type i = 0, n = ar.size(); i < n; ++i)
if (ar[i]->covers(cur.bv(), x, y))
return ar[i].nucleus()->editXY(cur, x, y);
}
return this;
}
void InsetMathNest::lfunMousePress(Cursor & cur, FuncRequest & cmd)
{
//lyxerr << "## lfunMousePress: buttons: " << cmd.button() << endl;
BufferView & bv = cur.bv();
if (cmd.button() == mouse_button::button3) {
// Don't do anything if we right-click a
// selection, a context menu will popup.
if (bv.cursor().selection() && cur >= bv.cursor().selectionBegin()
&& cur < bv.cursor().selectionEnd()) {
cur.noScreenUpdate();
return;
}
}
// set cursor after the inset if x is nearer to that position (bug 9748)
cur.moveToClosestEdge(cmd.x(), true);
bool do_selection = cmd.button() == mouse_button::button1
&& cmd.modifier() == ShiftModifier;
bv.mouseSetCursor(cur, do_selection);
if (cmd.button() == mouse_button::button1) {
//lyxerr << "## lfunMousePress: setting cursor to: " << cur << endl;
// Update the cursor update flags as needed:
//
// Update::Decoration: tells to update the decoration
// (visual box corners that define
// the inset)/
// Update::FitCursor: adjust the screen to the cursor
// position if needed
// cur.result().update(): don't overwrite previously set flags.
cur.screenUpdateFlags(Update::Decoration | Update::FitCursor
| cur.result().screenUpdate());
} else if (cmd.button() == mouse_button::button2 && lyxrc.mouse_middlebutton_paste) {
if (cap::selection()) {
// See comment in Text::dispatch why we do this
cap::copySelectionToStack();
cmd = FuncRequest(LFUN_PASTE, "0");
doDispatch(bv.cursor(), cmd);
} else {
MathData ar;
asArray(theSelection().get(), ar);
bv.cursor().insert(ar);
}
}
}
void InsetMathNest::lfunMouseMotion(Cursor & cur, FuncRequest & cmd)
{
// only select with button 1
if (cmd.button() != mouse_button::button1)
return;
Cursor & bvcur = cur.bv().cursor();
// ignore motions deeper nested than the real anchor
if (!bvcur.realAnchor().hasPart(cur)) {
cur.undispatched();
return;
}
// set cursor after the inset if x is nearer to that position (bug 9748)
cur.moveToClosestEdge(cmd.x());
CursorSlice old = bvcur.top();
// We continue with our existing selection or start a new one, so don't
// reset the anchor.
bvcur.setCursor(cur);
// Did we actually move?
if (cur.top() == old)
// We didn't move one iota, so no need to change selection status
// or update the screen.
cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
else
bvcur.setSelection();
}
void InsetMathNest::lfunMouseRelease(Cursor & cur, FuncRequest & cmd)
{
//lyxerr << "## lfunMouseRelease: buttons: " << cmd.button() << endl;
if (cmd.button() == mouse_button::button1) {
if (!cur.selection())
cur.noScreenUpdate();
else {
Cursor & bvcur = cur.bv().cursor();
bvcur.selection(true);
}
return;
}
cur.undispatched();
}
bool InsetMathNest::interpretChar(Cursor & cur, char_type const c)
{
// try auto-correction
if (lyxrc.autocorrection_math && cur.pos() != 0
&& math_autocorrect(cur, c))
return true;
//lyxerr << "interpret 2: '" << c << "'" << endl;
docstring save_selection;
if (c == '^' || c == '_')
save_selection = grabAndEraseSelection(cur);
cur.clearTargetX();
Buffer * buf = cur.buffer();
// handle macroMode
if (cur.inMacroMode()) {
docstring name = cur.macroName();
/// are we currently typing '#1' or '#2' or...?
if (name == "\\#") {
cur.backspace();
int n = c - '0';
if (n >= 1 && n <= 9)
cur.insert(new InsetMathMacroArgument(n));
return true;
}
// do not finish macro for known * commands
bool star_macro = c == '*'
&& (in_word_set(name.substr(1) + '*')
|| cur.buffer()->getMacro(name.substr(1) + "*", cur, true));
if (isAlphaASCII(c) || star_macro) {
cur.activeMacro()->setName(name + docstring(1, c));
return true;
}
// handle 'special char' macros
if (name == "\\") {
// remove the '\\'
if (c == '\\') {
cur.backspace();
if (currentMode() != InsetMath::MATH_MODE)
cur.niceInsert(createInsetMath("textbackslash", buf));
else
cur.niceInsert(createInsetMath("backslash", buf));
} else if (c == '^' && currentMode() == InsetMath::MATH_MODE) {
cur.backspace();
cur.niceInsert(createInsetMath("mathcircumflex", buf));
} else if (c == '{' || c == '%') {
//using the saved selection as argument
InsetMathUnknown * p = cur.activeMacro();
p->finalize();
MathData sel(cur.buffer());
asArray(p->selection(), sel);
cur.backspace();
if (c == '{')
cur.niceInsert(MathAtom(new InsetMathBrace(sel)));
else
cur.niceInsert(MathAtom(new InsetMathComment(sel)));
} else if (c == '#') {
LASSERT(cur.activeMacro(), return false);
cur.activeMacro()->setName(name + docstring(1, c));
} else {
cur.backspace();
cur.niceInsert(createInsetMath(docstring(1, c), buf));
}
return true;
}
// One character big delimiters. The others are handled in
// interpretString().
latexkeys const * l = in_word_set(name.substr(1));
if (name[0] == '\\' && l && l->inset == "big") {
docstring delim;
switch (c) {
case '{':
delim = from_ascii("\\{");
break;
case '}':
delim = from_ascii("\\}");
break;
default:
delim = docstring(1, c);
break;
}
if (InsetMathBig::isBigInsetDelim(delim)) {
// name + delim ared a valid InsetMathBig.
// We can't use cur.macroModeClose() because
// it does not handle delim.
InsetMathUnknown * p = cur.activeMacro();
p->finalize();
--cur.pos();
cur.cell().erase(cur.pos());
cur.plainInsert(MathAtom(
new InsetMathBig(name.substr(1), delim)));
return true;
}
} else if (name == "\\smash" && c == '[') {
// We can't use cur.macroModeClose() because
// it would create an InsetMathPhantom
InsetMathUnknown * p = cur.activeMacro();
p->finalize();
interpretChar(cur, c);
return true;
}
// leave macro mode and try again if necessary
if (cur.macroModeClose()) {
MathAtom const atom = cur.prevAtom();
if (atom->asNestInset() && atom->isActive()) {
cur.posBackward();
cur.nextInset()->edit(cur, true);
}
}
if (c == '{')
cur.niceInsert(MathAtom(new InsetMathBrace(buf)));
else if (c != ' ')
interpretChar(cur, c);
return true;
}
// just clear selection on pressing the space bar
if (cur.selection() && c == ' ') {
cur.selection(false);
return true;
}
if (c == '\\') {
//lyxerr << "starting with macro" << endl;
bool reduced = cap::reduceSelectionToOneCell(cur);
if (reduced || !cur.selection()) {
cur.recordUndoInset();
docstring const safe = cap::grabAndEraseSelection(cur);
if (!cur.inRegexped())
cur.insert(MathAtom(new InsetMathUnknown(from_ascii("\\"), safe, false)));
else
cur.niceInsert(createInsetMath("backslash", buf));
}
return true;
}
selClearOrDel(cur);
if (c == '\n') {
if (currentMode() != InsetMath::MATH_MODE)
cur.insert(c);
return true;
}
if (c == ' ') {
if (currentMode() != InsetMath::MATH_MODE) {
// insert spaces in text or undecided mode,
// but suppress direct insertion of two spaces in a row
// the still allows typing '<space>a<space>' and deleting the 'a', but
// it is better than nothing...
pos_type const pos = cur.pos();
pos_type const lastpos = cur.lastpos();
if ((pos == 0 && lastpos == 0)
|| (pos == 0 && cur.nextAtom()->getChar() != ' ')
|| (pos == lastpos && cur.prevAtom()->getChar() != ' ')
|| (pos > 0 && cur.prevAtom()->getChar() != ' '
&& cur.nextAtom()->getChar() != ' ')) {
cur.insert(c);
// FIXME: we have to enable full redraw here because of the
// visual box corners that define the inset. If we know for
// sure that we stay within the same cell we can optimize for
// that using:
//cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
}
return true;
}
if (cur.pos() != 0 && cur.prevAtom()->asSpaceInset()) {
cur.prevAtom().nucleus()->asSpaceInset()->incSpace();
// FIXME: we have to enable full redraw here because of the
// visual box corners that define the inset. If we know for
// sure that we stay within the same cell we can optimize for
// that using:
//cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
return true;
}
if (cur.popForward()) {
// FIXME: we have to enable full redraw here because of the
// visual box corners that define the inset. If we know for
// sure that we stay within the same cell we can optimize for
// that using:
//cur.screenUpdateFlags(Update::FitCursor);
return true;
}
// if we are at the very end, leave the formula
return cur.pos() != cur.lastpos();
}
// These should be treated differently when not in text mode:
if (cur.inRegexped()) {
switch (c) {
case '^':
cur.niceInsert(createInsetMath("mathcircumflex", buf));
break;
case '{':
case '}':
case '#':
case '%':
case '_':
cur.niceInsert(createInsetMath(docstring(1, c), buf));
break;
case '~':
cur.niceInsert(createInsetMath("sim", buf));
break;
default:
cur.insert(c);
}
return true;
} else if (currentMode() != InsetMath::TEXT_MODE) {
if (c == '_') {
cur.recordUndoInset();
script(cur, false, save_selection);
return true;
}
if (c == '^') {
cur.recordUndoInset();
script(cur, true, save_selection);
return true;
}
if (c == '~') {
cur.niceInsert(createInsetMath("sim", buf));
return true;
}
if (currentMode() == InsetMath::MATH_MODE && Encodings::isUnicodeTextOnly(c)) {
MathAtom at = createInsetMath("text", buf);
at.nucleus()->cell(0).push_back(MathAtom(new InsetMathChar(c)));
cur.insert(at);
cur.posForward();
return true;
}
} else {
if (c == '^') {
cur.niceInsert(createInsetMath("textasciicircum", buf));
return true;
}
if (c == '~') {
cur.niceInsert(createInsetMath("textasciitilde", buf));
return true;
}
}
if (c == '{' || c == '}' || c == '&' || c == '$' || c == '#' ||
c == '%' || c == '_') {
cur.niceInsert(createInsetMath(docstring(1, c), buf));
return true;
}
// no special circumstances, so insert the character without any fuss
cur.insert(c);
return true;
}
bool InsetMathNest::interpretString(Cursor & cur, docstring const & str)
{
if (str == "\\limits" || str == "\\nolimits") {
if (cur.pos() > 0 && cur.prevMath().allowsLimitsChange()) {
cur.prevMath().limits(str == "\\limits" ? LIMITS : NO_LIMITS);
return true;
} else {
cur.message(bformat(_("Cannot apply %1$s here."), str));
return false;
}
}
// Create a InsetMathBig from cur.cell()[cur.pos() - 1] and t if
// possible
if (!cur.empty() && cur.pos() > 0 &&
cur.cell()[cur.pos() - 1]->asUnknownInset()) {
if (InsetMathBig::isBigInsetDelim(str)) {
docstring prev = asString(cur.cell()[cur.pos() - 1]);
if (prev[0] == '\\') {
prev = prev.substr(1);
latexkeys const * l = in_word_set(prev);
if (l && l->inset == "big") {
cur.recordUndoSelection();
cur.cell()[cur.pos() - 1] =
MathAtom(new InsetMathBig(prev, str));
return true;
}
}
}
}
return false;
}
bool InsetMathNest::script(Cursor & cur, bool up)
{
return script(cur, up, docstring());
}
bool InsetMathNest::script(Cursor & cur, bool up,
docstring const & save_selection)
{
// Hack to get \^ and \_ working
//lyxerr << "handling script: up: " << up << endl;
if (cur.inMacroMode() && cur.macroName() == "\\") {
if (up)
cur.niceInsert(createInsetMath("mathcircumflex", cur.buffer()));
else
interpretChar(cur, '_');
return true;
}
cur.macroModeClose();
if (asScriptInset() && cur.idx() == 0) {
// we are in a nucleus of a script inset, move to _our_ script
InsetMathScript * inset = asScriptInset();
//lyxerr << " going to cell " << inset->idxOfScript(up) << endl;
inset->ensure(up);
cur.idx() = inset->idxOfScript(up);
cur.pos() = 0;
} else if (cur.pos() != 0 && cur.prevAtom()->asScriptInset()) {
--cur.pos();
InsetMathScript * inset = cur.nextAtom().nucleus()->asScriptInset();
cur.push(*inset);
inset->ensure(up);
cur.idx() = inset->idxOfScript(up);
cur.pos() = cur.lastpos();
} else {
// convert the thing to our left to a scriptinset or create a new
// one if in the very first position of the array
if (cur.pos() == 0) {
//lyxerr << "new scriptinset" << endl;
cur.insert(new InsetMathScript(buffer_, up));
} else {
//lyxerr << "converting prev atom " << endl;
cur.prevAtom() = MathAtom(new InsetMathScript(buffer_, cur.prevAtom(), up));
}
--cur.pos();
InsetMathScript * inset = cur.nextAtom().nucleus()->asScriptInset();
// See comment in MathParser.cpp for special handling of {}-bases
cur.push(*inset);
cur.idx() = 1;
cur.pos() = 0;
}
//lyxerr << "inserting selection 1:\n" << save_selection << endl;
cur.niceInsert(save_selection);
cur.resetAnchor();
//lyxerr << "inserting selection 2:\n" << save_selection << endl;
return true;
}
bool InsetMathNest::completionSupported(Cursor const & cur) const
{
return cur.inMacroMode();
}
bool InsetMathNest::inlineCompletionSupported(Cursor const & cur) const
{
return cur.inMacroMode();
}
bool InsetMathNest::automaticInlineCompletion() const
{
return lyxrc.completion_inline_math;
}
bool InsetMathNest::automaticPopupCompletion() const
{
return lyxrc.completion_popup_math;
}
CompletionList const *
InsetMathNest::createCompletionList(Cursor const & cur) const
{
if (!cur.inMacroMode())
return nullptr;
return new MathCompletionList(cur);
}
docstring InsetMathNest::completionPrefix(Cursor const & cur) const
{
if (!cur.inMacroMode())
return docstring();
return cur.activeMacro()->name();
}
bool InsetMathNest::insertCompletion(Cursor & cur, docstring const & s,
bool finished)
{
if (!cur.inMacroMode())
return false;
// append completion to active macro
InsetMathUnknown * inset = cur.activeMacro();
inset->setName(inset->name() + s);
// finish macro
if (finished) {
#if 0
// FIXME: this creates duplicates in the completion popup
// which looks ugly. Moreover the changes the list lengths
// which seems to confuse the popup as well.
MathCompletionList::addToFavorites(inset->name());
#endif
lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, " "));
}
return true;
}
void InsetMathNest::completionPosAndDim(Cursor const & cur, int & x, int & y,
Dimension & dim) const
{
Inset const * inset = cur.activeMacro();
if (!inset)
return;
// get inset dimensions
dim = cur.bv().coordCache().insets().dim(inset);
// FIXME: these 3 are no accurate, but should depend on the font.
// Now the popup jumps down if you enter a char with descent > 0.
dim.des += 3;
dim.asc += 3;
// and position
Point xy = cur.bv().coordCache().insets().xy(inset);
x = xy.x_;
y = xy.y_;
}
////////////////////////////////////////////////////////////////////
MathCompletionList::MathCompletionList(Cursor const & cur)
{
// fill it with macros from the buffer
MacroNameSet macros;
cur.buffer()->listMacroNames(macros);
MacroNameSet::const_iterator it;
for (it = macros.begin(); it != macros.end(); ++it) {
if (cur.buffer()->getMacro(*it, cur, false))
locals.push_back("\\" + *it);
}
sort(locals.begin(), locals.end());
if (!globals.empty())
return;
// fill in global macros
macros.clear();
MacroTable::globalMacros().getMacroNames(macros, false);
//lyxerr << "Globals completion macros: ";
for (it = macros.begin(); it != macros.end(); ++it) {
//lyxerr << "\\" + *it << " ";
globals.push_back("\\" + *it);
}
//lyxerr << std::endl;
// fill in global commands
globals.push_back(from_ascii("\\boxed"));
globals.push_back(from_ascii("\\fbox"));
globals.push_back(from_ascii("\\framebox"));
globals.push_back(from_ascii("\\makebox"));
globals.push_back(from_ascii("\\kern"));
globals.push_back(from_ascii("\\xhookrightarrow"));
globals.push_back(from_ascii("\\xhookleftarrow"));
globals.push_back(from_ascii("\\xrightarrow"));
globals.push_back(from_ascii("\\xRightarrow"));
globals.push_back(from_ascii("\\xrightharpoondown"));
globals.push_back(from_ascii("\\xrightharpoonup"));
globals.push_back(from_ascii("\\xrightleftharpoons"));
globals.push_back(from_ascii("\\xleftarrow"));
globals.push_back(from_ascii("\\xLeftarrow"));
globals.push_back(from_ascii("\\xleftharpoondown"));
globals.push_back(from_ascii("\\xleftharpoonup"));
globals.push_back(from_ascii("\\xleftrightarrow"));
globals.push_back(from_ascii("\\xLeftrightarrow"));
globals.push_back(from_ascii("\\xleftrightharpoons"));
globals.push_back(from_ascii("\\xmapsto"));
globals.push_back(from_ascii("\\split"));
globals.push_back(from_ascii("\\gathered"));
globals.push_back(from_ascii("\\aligned"));
globals.push_back(from_ascii("\\alignedat"));
globals.push_back(from_ascii("\\cases"));
globals.push_back(from_ascii("\\substack"));
globals.push_back(from_ascii("\\xymatrix"));
globals.push_back(from_ascii("\\Diagram"));
globals.push_back(from_ascii("\\subarray"));
globals.push_back(from_ascii("\\array"));
globals.push_back(from_ascii("\\sqrt"));
globals.push_back(from_ascii("\\root"));
globals.push_back(from_ascii("\\tabular"));
globals.push_back(from_ascii("\\sideset"));
globals.push_back(from_ascii("\\stackrel"));
globals.push_back(from_ascii("\\stackrelthree"));
globals.push_back(from_ascii("\\binom"));
globals.push_back(from_ascii("\\choose"));
globals.push_back(from_ascii("\\brace"));
globals.push_back(from_ascii("\\brack"));
globals.push_back(from_ascii("\\frac"));
globals.push_back(from_ascii("\\over"));
globals.push_back(from_ascii("\\nicefrac"));
globals.push_back(from_ascii("\\unitfrac"));
globals.push_back(from_ascii("\\unitfracthree"));
globals.push_back(from_ascii("\\unitone"));
globals.push_back(from_ascii("\\unittwo"));
globals.push_back(from_ascii("\\infer"));
globals.push_back(from_ascii("\\atop"));
globals.push_back(from_ascii("\\lefteqn"));
globals.push_back(from_ascii("\\boldsymbol"));
globals.push_back(from_ascii("\\bm"));
globals.push_back(from_ascii("\\color"));
globals.push_back(from_ascii("\\normalcolor"));
globals.push_back(from_ascii("\\textcolor"));
globals.push_back(from_ascii("\\cfrac"));
globals.push_back(from_ascii("\\cfracleft"));
globals.push_back(from_ascii("\\cfracright"));
globals.push_back(from_ascii("\\dfrac"));
globals.push_back(from_ascii("\\tfrac"));
globals.push_back(from_ascii("\\dbinom"));
globals.push_back(from_ascii("\\tbinom"));
globals.push_back(from_ascii("\\hphantom"));
globals.push_back(from_ascii("\\phantom"));
globals.push_back(from_ascii("\\vphantom"));
globals.push_back(from_ascii("\\cancel"));
globals.push_back(from_ascii("\\bcancel"));
globals.push_back(from_ascii("\\xcancel"));
globals.push_back(from_ascii("\\cancelto"));
globals.push_back(from_ascii("\\smash"));
globals.push_back(from_ascii("\\mathclap"));
globals.push_back(from_ascii("\\mathllap"));
globals.push_back(from_ascii("\\mathrlap"));
globals.push_back(from_ascii("\\ensuremath"));
MathWordList const & words = mathedWordList();
MathWordList::const_iterator it2;
//lyxerr << "Globals completion commands: ";
for (it2 = words.begin(); it2 != words.end(); ++it2) {
if (it2->second.inset != "macro" && !it2->second.hidden) {
// macros are already read from MacroTable::globalMacros()
globals.push_back('\\' + it2->first);
//lyxerr << '\\' + it2->first << ' ';
}
}
//lyxerr << std::endl;
sort(globals.begin(), globals.end());
}
MathCompletionList::~MathCompletionList()
{
}
size_type MathCompletionList::size() const
{
return locals.size() + globals.size();
}
docstring const & MathCompletionList::data(size_t idx) const
{
size_t lsize = locals.size();
if (idx >= lsize)
return globals[idx - lsize];
else
return locals[idx];
}
std::string MathCompletionList::icon(size_t idx) const
{
// get the latex command
docstring cmd;
size_t lsize = locals.size();
if (idx >= lsize)
cmd = globals[idx - lsize];
else
cmd = locals[idx];
// get the icon name by stripping the backslash
docstring icon_name = frontend::Application::mathIcon(cmd.substr(1));
if (icon_name.empty())
return std::string();
return "math/" + to_utf8(icon_name);
}
std::vector<docstring> MathCompletionList::globals;
} // namespace lyx
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