lyx_mirror/src/CutAndPaste.cpp
Abdelrazak Younes 656e851b88 Fix bug 4178.
Clear out selection and cut stack buffers on exit.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/branches/BRANCH_1_5_X@20302 a592a061-630c-0410-9148-cb99ea01b6c8
2007-09-16 09:00:10 +00:00

945 lines
25 KiB
C++

/*
* \file CutAndPaste.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Jürgen Vigna
* \author Lars Gullik Bjønnes
* \author Alfredo Braunstein
* \author Michael Gerz
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "CutAndPaste.h"
#include "Buffer.h"
#include "buffer_funcs.h"
#include "BufferParams.h"
#include "BufferView.h"
#include "Cursor.h"
#include "debug.h"
#include "ErrorList.h"
#include "FuncRequest.h"
#include "gettext.h"
#include "InsetIterator.h"
#include "Language.h"
#include "lfuns.h"
#include "LyXFunc.h"
#include "LyXRC.h"
#include "Text.h"
#include "TextClassList.h"
#include "Paragraph.h"
#include "paragraph_funcs.h"
#include "ParagraphParameters.h"
#include "ParIterator.h"
#include "Undo.h"
#include "insets/InsetCharStyle.h"
#include "insets/InsetTabular.h"
#include "mathed/MathData.h"
#include "mathed/InsetMath.h"
#include "mathed/MathSupport.h"
#include "support/lstrings.h"
#include "frontends/Clipboard.h"
#include "frontends/Selection.h"
#include <boost/current_function.hpp>
#include <boost/tuple/tuple.hpp>
#include <string>
using std::endl;
using std::for_each;
using std::make_pair;
using std::pair;
using std::vector;
using std::string;
namespace lyx {
using support::bformat;
using frontend::Clipboard;
namespace {
typedef std::pair<pit_type, int> PitPosPair;
typedef limited_stack<pair<ParagraphList, textclass_type> > CutStack;
CutStack theCuts(10);
// persistent selection, cleared until the next selection
CutStack selectionBuffer(1);
// store whether the tabular stack is newer than the normal copy stack
// FIXME: this is a workaround for bug 1919. Should be removed for 1.5,
// when we (hopefully) have a one-for-all paste mechanism.
bool dirty_tabular_stack_ = false;
void region(CursorSlice const & i1, CursorSlice const & i2,
Inset::row_type & r1, Inset::row_type & r2,
Inset::col_type & c1, Inset::col_type & c2)
{
Inset & p = i1.inset();
c1 = p.col(i1.idx());
c2 = p.col(i2.idx());
if (c1 > c2)
std::swap(c1, c2);
r1 = p.row(i1.idx());
r2 = p.row(i2.idx());
if (r1 > r2)
std::swap(r1, r2);
}
bool checkPastePossible(int index)
{
return size_t(index) < theCuts.size() && !theCuts[index].first.empty();
}
pair<PitPosPair, pit_type>
pasteSelectionHelper(Cursor & cur, ParagraphList const & parlist,
textclass_type textclass, ErrorList & errorlist)
{
Buffer const & buffer = cur.buffer();
pit_type pit = cur.pit();
pos_type pos = cur.pos();
ParagraphList & pars = cur.text()->paragraphs();
if (parlist.empty())
return make_pair(PitPosPair(pit, pos), pit);
BOOST_ASSERT (pos <= pars[pit].size());
// Make a copy of the CaP paragraphs.
ParagraphList insertion = parlist;
textclass_type const tc = buffer.params().textclass;
// Now remove all out of the pars which is NOT allowed in the
// new environment and set also another font if that is required.
// Convert newline to paragraph break in ERT inset.
// This should not be here!
if (pars[pit].inInset() &&
(pars[pit].inInset()->lyxCode() == Inset::ERT_CODE ||
pars[pit].inInset()->lyxCode() == Inset::LISTINGS_CODE)) {
for (ParagraphList::size_type i = 0; i < insertion.size(); ++i) {
for (pos_type j = 0; j < insertion[i].size(); ++j) {
if (insertion[i].isNewline(j)) {
// do not track deletion of newline
insertion[i].eraseChar(j, false);
breakParagraphConservative(
buffer.params(),
insertion, i, j);
}
}
}
}
// If we are in an inset which returns forceDefaultParagraphs,
// set the paragraphs to default
if (cur.inset().forceDefaultParagraphs(cur.idx())) {
Layout_ptr const layout =
buffer.params().getTextClass().defaultLayout();
ParagraphList::iterator const end = insertion.end();
for (ParagraphList::iterator par = insertion.begin();
par != end; ++par)
par->layout(layout);
}
// Make sure there is no class difference.
InsetText in;
// This works without copying any paragraph data because we have
// a specialized swap method for ParagraphList. This is important
// since we store pointers to insets at some places and we don't
// want to invalidate them.
insertion.swap(in.paragraphs());
cap::switchBetweenClasses(textclass, tc, in, errorlist);
insertion.swap(in.paragraphs());
ParagraphList::iterator tmpbuf = insertion.begin();
int depth_delta = pars[pit].params().depth() - tmpbuf->params().depth();
depth_type max_depth = pars[pit].getMaxDepthAfter();
for (; tmpbuf != insertion.end(); ++tmpbuf) {
// If we have a negative jump so that the depth would
// go below 0 depth then we have to redo the delta to
// this new max depth level so that subsequent
// paragraphs are aligned correctly to this paragraph
// at level 0.
if (int(tmpbuf->params().depth()) + depth_delta < 0)
depth_delta = 0;
// Set the right depth so that we are not too deep or shallow.
tmpbuf->params().depth(tmpbuf->params().depth() + depth_delta);
if (tmpbuf->params().depth() > max_depth)
tmpbuf->params().depth(max_depth);
// Only set this from the 2nd on as the 2nd depends
// for maxDepth still on pit.
if (tmpbuf != insertion.begin())
max_depth = tmpbuf->getMaxDepthAfter();
// Set the inset owner of this paragraph.
tmpbuf->setInsetOwner(pars[pit].inInset());
for (pos_type i = 0; i < tmpbuf->size(); ++i) {
if (tmpbuf->getChar(i) == Paragraph::META_INSET &&
!pars[pit].insetAllowed(tmpbuf->getInset(i)->lyxCode()))
// do not track deletion of invalid insets
tmpbuf->eraseChar(i--, false);
}
tmpbuf->setChange(Change(buffer.params().trackChanges ?
Change::INSERTED : Change::UNCHANGED));
}
bool const empty = pars[pit].empty();
if (!empty) {
// Make the buf exactly the same layout as the cursor
// paragraph.
insertion.begin()->makeSameLayout(pars[pit]);
}
// Prepare the paragraphs and insets for insertion.
// A couple of insets store buffer references so need updating.
insertion.swap(in.paragraphs());
ParIterator fpit = par_iterator_begin(in);
ParIterator fend = par_iterator_end(in);
for (; fpit != fend; ++fpit) {
InsetList::const_iterator lit = fpit->insetlist.begin();
InsetList::const_iterator eit = fpit->insetlist.end();
for (; lit != eit; ++lit) {
switch (lit->inset->lyxCode()) {
case Inset::TABULAR_CODE: {
InsetTabular * it = static_cast<InsetTabular*>(lit->inset);
it->buffer(&buffer);
break;
}
default:
break; // nothing
}
}
}
insertion.swap(in.paragraphs());
// Split the paragraph for inserting the buf if necessary.
if (!empty)
breakParagraphConservative(buffer.params(), pars, pit, pos);
// Paste it!
if (empty) {
pars.insert(boost::next(pars.begin(), pit),
insertion.begin(),
insertion.end());
// merge the empty par with the last par of the insertion
mergeParagraph(buffer.params(), pars,
pit + insertion.size() - 1);
} else {
pars.insert(boost::next(pars.begin(), pit + 1),
insertion.begin(),
insertion.end());
// merge the first par of the insertion with the current par
mergeParagraph(buffer.params(), pars, pit);
}
pit_type last_paste = pit + insertion.size() - 1;
// Store the new cursor position.
pit = last_paste;
pos = pars[last_paste].size();
// Join (conditionally) last pasted paragraph with next one, i.e.,
// the tail of the spliced document paragraph
if (!empty && last_paste + 1 != pit_type(pars.size())) {
if (pars[last_paste + 1].hasSameLayout(pars[last_paste])) {
mergeParagraph(buffer.params(), pars, last_paste);
} else if (pars[last_paste + 1].empty()) {
pars[last_paste + 1].makeSameLayout(pars[last_paste]);
mergeParagraph(buffer.params(), pars, last_paste);
} else if (pars[last_paste].empty()) {
pars[last_paste].makeSameLayout(pars[last_paste + 1]);
mergeParagraph(buffer.params(), pars, last_paste);
} else {
pars[last_paste + 1].stripLeadingSpaces(buffer.params().trackChanges);
++last_paste;
}
}
return make_pair(PitPosPair(pit, pos), last_paste + 1);
}
PitPosPair eraseSelectionHelper(BufferParams const & params,
ParagraphList & pars,
pit_type startpit, pit_type endpit,
int startpos, int endpos)
{
// Start of selection is really invalid.
if (startpit == pit_type(pars.size()) ||
(startpos > pars[startpit].size()))
return PitPosPair(endpit, endpos);
// Start and end is inside same paragraph
if (endpit == pit_type(pars.size()) || startpit == endpit) {
endpos -= pars[startpit].eraseChars(startpos, endpos, params.trackChanges);
return PitPosPair(endpit, endpos);
}
for (pit_type pit = startpit; pit != endpit + 1;) {
pos_type const left = (pit == startpit ? startpos : 0);
pos_type right = (pit == endpit ? endpos : pars[pit].size() + 1);
bool const merge = pars[pit].isMergedOnEndOfParDeletion(params.trackChanges);
// Logically erase only, including the end-of-paragraph character
pars[pit].eraseChars(left, right, params.trackChanges);
// Separate handling of paragraph break:
if (merge && pit != endpit &&
(pit + 1 != endpit || pars[pit].hasSameLayout(pars[endpit]))) {
if (pit + 1 == endpit)
endpos += pars[pit].size();
mergeParagraph(params, pars, pit);
--endpit;
} else
++pit;
}
// Ensure legal cursor pos:
endpit = startpit;
endpos = startpos;
return PitPosPair(endpit, endpos);
}
void putClipboard(ParagraphList const & paragraphs, textclass_type textclass,
docstring const & plaintext)
{
// For some strange reason gcc 3.2 and 3.3 do not accept
// Buffer buffer(string(), false);
Buffer buffer("", false);
buffer.setUnnamed(true);
buffer.paragraphs() = paragraphs;
buffer.params().textclass = textclass;
std::ostringstream lyx;
if (buffer.write(lyx))
theClipboard().put(lyx.str(), plaintext);
else
theClipboard().put(string(), plaintext);
}
void copySelectionHelper(Buffer const & buf, ParagraphList & pars,
pit_type startpit, pit_type endpit,
int start, int end, textclass_type tc, CutStack & cutstack)
{
BOOST_ASSERT(0 <= start && start <= pars[startpit].size());
BOOST_ASSERT(0 <= end && end <= pars[endpit].size());
BOOST_ASSERT(startpit != endpit || start <= end);
// Clone the paragraphs within the selection.
ParagraphList copy_pars(boost::next(pars.begin(), startpit),
boost::next(pars.begin(), endpit + 1));
// Remove the end of the last paragraph; afterwards, remove the
// beginning of the first paragraph. Keep this order - there may only
// be one paragraph! Do not track deletions here; this is an internal
// action not visible to the user
Paragraph & back = copy_pars.back();
back.eraseChars(end, back.size(), false);
Paragraph & front = copy_pars.front();
front.eraseChars(0, start, false);
ParagraphList::iterator it = copy_pars.begin();
ParagraphList::iterator it_end = copy_pars.end();
for (; it != it_end; it++) {
// ERT paragraphs have the Language latex_language.
// This is invalid outside of ERT, so we need to change it
// to the buffer language.
if (it->ownerCode() == Inset::ERT_CODE || it->ownerCode() == Inset::LISTINGS_CODE) {
it->changeLanguage(buf.params(), latex_language,
buf.getLanguage());
}
it->setInsetOwner(0);
}
// do not copy text (also nested in insets) which is marked as deleted
acceptChanges(copy_pars, buf.params());
cutstack.push(make_pair(copy_pars, tc));
}
} // namespace anon
namespace cap {
docstring grabAndEraseSelection(Cursor & cur)
{
if (!cur.selection())
return docstring();
docstring res = grabSelection(cur);
eraseSelection(cur);
return res;
}
void switchBetweenClasses(textclass_type c1, textclass_type c2,
InsetText & in, ErrorList & errorlist)
{
errorlist.clear();
BOOST_ASSERT(!in.paragraphs().empty());
if (c1 == c2)
return;
TextClass const & tclass1 = textclasslist[c1];
TextClass const & tclass2 = textclasslist[c2];
// layouts
ParIterator end = par_iterator_end(in);
for (ParIterator it = par_iterator_begin(in); it != end; ++it) {
docstring const name = it->layout()->name();
bool hasLayout = tclass2.hasLayout(name);
if (hasLayout)
it->layout(tclass2[name]);
else
it->layout(tclass2.defaultLayout());
if (!hasLayout && name != tclass1.defaultLayoutName()) {
docstring const s = bformat(
_("Layout had to be changed from\n%1$s to %2$s\n"
"because of class conversion from\n%3$s to %4$s"),
name, it->layout()->name(),
from_utf8(tclass1.name()), from_utf8(tclass2.name()));
// To warn the user that something had to be done.
errorlist.push_back(ErrorItem(_("Changed Layout"), s,
it->id(), 0,
it->size()));
}
}
// character styles
InsetIterator const i_end = inset_iterator_end(in);
for (InsetIterator it = inset_iterator_begin(in); it != i_end; ++it) {
if (it->lyxCode() == Inset::CHARSTYLE_CODE) {
InsetCharStyle & inset =
static_cast<InsetCharStyle &>(*it);
string const name = inset.params().type;
CharStyles::iterator const found_cs =
tclass2.charstyle(name);
if (found_cs == tclass2.charstyles().end()) {
// The character style is undefined in tclass2
inset.setUndefined();
docstring const s = bformat(_(
"Character style %1$s is "
"undefined because of class "
"conversion from\n%2$s to %3$s"),
from_utf8(name), from_utf8(tclass1.name()),
from_utf8(tclass2.name()));
// To warn the user that something had to be done.
errorlist.push_back(ErrorItem(
_("Undefined character style"),
s, it.paragraph().id(), it.pos(), it.pos() + 1));
} else if (inset.undefined()) {
// The character style is undefined in
// tclass1 and is defined in tclass2
inset.setDefined(found_cs);
}
}
}
}
std::vector<docstring> const availableSelections(Buffer const & buffer)
{
vector<docstring> selList;
CutStack::const_iterator cit = theCuts.begin();
CutStack::const_iterator end = theCuts.end();
for (; cit != end; ++cit) {
// we do not use cit-> here because gcc 2.9x does not
// like it (JMarc)
ParagraphList const & pars = (*cit).first;
docstring asciiSel;
ParagraphList::const_iterator pit = pars.begin();
ParagraphList::const_iterator pend = pars.end();
for (; pit != pend; ++pit) {
asciiSel += pit->asString(buffer, false);
if (asciiSel.size() > 25) {
asciiSel.replace(22, docstring::npos,
from_ascii("..."));
break;
}
}
selList.push_back(asciiSel);
}
return selList;
}
size_type numberOfSelections()
{
return theCuts.size();
}
void cutSelection(Cursor & cur, bool doclear, bool realcut)
{
// This doesn't make sense, if there is no selection
if (!cur.selection())
return;
// OK, we have a selection. This is always between cur.selBegin()
// and cur.selEnd()
if (cur.inTexted()) {
Text * text = cur.text();
BOOST_ASSERT(text);
saveSelection(cur);
// make sure that the depth behind the selection are restored, too
recordUndoSelection(cur);
pit_type begpit = cur.selBegin().pit();
pit_type endpit = cur.selEnd().pit();
int endpos = cur.selEnd().pos();
BufferParams const & bp = cur.buffer().params();
if (realcut) {
copySelectionHelper(cur.buffer(),
text->paragraphs(),
begpit, endpit,
cur.selBegin().pos(), endpos,
bp.textclass, theCuts);
// Stuff what we got on the clipboard.
// Even if there is no selection.
putClipboard(theCuts[0].first, theCuts[0].second,
cur.selectionAsString(true));
}
boost::tie(endpit, endpos) =
eraseSelectionHelper(bp,
text->paragraphs(),
begpit, endpit,
cur.selBegin().pos(), endpos);
// cutSelection can invalidate the cursor so we need to set
// it anew. (Lgb)
// we prefer the end for when tracking changes
cur.pos() = endpos;
cur.pit() = endpit;
// sometimes necessary
if (doclear
&& text->paragraphs()[begpit].stripLeadingSpaces(bp.trackChanges))
cur.fixIfBroken();
// need a valid cursor. (Lgb)
cur.clearSelection();
updateLabels(cur.buffer());
// tell tabular that a recent copy happened
dirtyTabularStack(false);
}
if (cur.inMathed()) {
if (cur.selBegin().idx() != cur.selEnd().idx()) {
// The current selection spans more than one cell.
// Record all cells
recordUndoInset(cur);
} else {
// Record only the current cell to avoid a jumping
// cursor after undo
recordUndo(cur);
}
if (realcut)
copySelection(cur);
eraseSelection(cur);
}
}
void copySelection(Cursor & cur)
{
copySelection(cur, cur.selectionAsString(true));
}
namespace {
void copySelectionToStack(Cursor & cur, CutStack & cutstack)
{
// this doesn't make sense, if there is no selection
if (!cur.selection())
return;
// copySelection can not yet handle the case of cross idx selection
if (cur.selBegin().idx() != cur.selEnd().idx())
return;
if (cur.inTexted()) {
Text * text = cur.text();
BOOST_ASSERT(text);
// ok we have a selection. This is always between cur.selBegin()
// and sel_end cursor
// copy behind a space if there is one
ParagraphList & pars = text->paragraphs();
pos_type pos = cur.selBegin().pos();
pit_type par = cur.selBegin().pit();
while (pos < pars[par].size() &&
pars[par].isLineSeparator(pos) &&
(par != cur.selEnd().pit() || pos < cur.selEnd().pos()))
++pos;
copySelectionHelper(cur.buffer(), pars, par, cur.selEnd().pit(),
pos, cur.selEnd().pos(), cur.buffer().params().textclass, cutstack);
dirtyTabularStack(false);
}
if (cur.inMathed()) {
//lyxerr << "copySelection in mathed" << endl;
ParagraphList pars;
Paragraph par;
BufferParams const & bp = cur.buffer().params();
par.layout(bp.getTextClass().defaultLayout());
par.insert(0, grabSelection(cur), Font(), Change(Change::UNCHANGED));
pars.push_back(par);
cutstack.push(make_pair(pars, bp.textclass));
}
}
}
void copySelectionToStack()
{
if (!selectionBuffer.empty())
theCuts.push(selectionBuffer[0]);
}
void copySelection(Cursor & cur, docstring const & plaintext)
{
// In tablemode, because copy and paste actually use special table stack
// we do not attemp to get selected paragraphs under cursor. Instead, a
// paragraph with the plain text version is generated so that table cells
// can be pasted as pure text somewhere else.
if (cur.selBegin().idx() != cur.selEnd().idx()) {
ParagraphList pars;
Paragraph par;
BufferParams const & bp = cur.buffer().params();
par.layout(bp.getTextClass().defaultLayout());
par.insert(0, plaintext, Font(), Change(Change::UNCHANGED));
pars.push_back(par);
theCuts.push(make_pair(pars, bp.textclass));
} else
copySelectionToStack(cur, theCuts);
// stuff the selection onto the X clipboard, from an explicit copy request
putClipboard(theCuts[0].first, theCuts[0].second, plaintext);
}
void saveSelection(Cursor & cur)
{
// This function is called, not when a selection is formed, but when
// a selection is cleared. Therefore, multiple keyboard selection
// will not repeatively trigger this function (bug 3877).
if (cur.selection()
&& cur.selBegin() == cur.bv().cursor().selBegin()
&& cur.selEnd() == cur.bv().cursor().selEnd()) {
LYXERR(Debug::ACTION) << BOOST_CURRENT_FUNCTION << ": `"
<< to_utf8(cur.selectionAsString(true)) << "'."
<< endl;
copySelectionToStack(cur, selectionBuffer);
}
}
bool selection()
{
return !selectionBuffer.empty();
}
void clearSelection()
{
selectionBuffer.clear();
}
void clearCutStack()
{
theCuts.clear();
}
docstring getSelection(Buffer const & buf, size_t sel_index)
{
return sel_index < theCuts.size()
? theCuts[sel_index].first.back().asString(buf, false)
: docstring();
}
void pasteParagraphList(Cursor & cur, ParagraphList const & parlist,
textclass_type textclass, ErrorList & errorList)
{
if (cur.inTexted()) {
Text * text = cur.text();
BOOST_ASSERT(text);
pit_type endpit;
PitPosPair ppp;
boost::tie(ppp, endpit) =
pasteSelectionHelper(cur, parlist,
textclass, errorList);
updateLabels(cur.buffer());
cur.clearSelection();
text->setCursor(cur, ppp.first, ppp.second);
}
// mathed is handled in InsetMathNest/InsetMathGrid
BOOST_ASSERT(!cur.inMathed());
}
void pasteFromStack(Cursor & cur, ErrorList & errorList, size_t sel_index)
{
// this does not make sense, if there is nothing to paste
if (!checkPastePossible(sel_index))
return;
recordUndo(cur);
pasteParagraphList(cur, theCuts[sel_index].first,
theCuts[sel_index].second, errorList);
cur.setSelection();
}
void pasteClipboard(Cursor & cur, ErrorList & errorList, bool asParagraphs)
{
// Use internal clipboard if it is the most recent one
if (theClipboard().isInternal()) {
pasteFromStack(cur, errorList, 0);
return;
}
// First try LyX format
if (theClipboard().hasLyXContents()) {
string lyx = theClipboard().getAsLyX();
if (!lyx.empty()) {
// For some strange reason gcc 3.2 and 3.3 do not accept
// Buffer buffer(string(), false);
Buffer buffer("", false);
buffer.setUnnamed(true);
if (buffer.readString(lyx)) {
recordUndo(cur);
pasteParagraphList(cur, buffer.paragraphs(),
buffer.params().textclass, errorList);
cur.setSelection();
return;
}
}
}
// Then try plain text
docstring const text = theClipboard().getAsText();
if (text.empty())
return;
recordUndo(cur);
if (asParagraphs)
cur.text()->insertStringAsParagraphs(cur, text);
else
cur.text()->insertStringAsLines(cur, text);
}
void pasteSelection(Cursor & cur, ErrorList & errorList)
{
if (selectionBuffer.empty())
return;
recordUndo(cur);
pasteParagraphList(cur, selectionBuffer[0].first,
selectionBuffer[0].second, errorList);
}
void replaceSelectionWithString(Cursor & cur, docstring const & str, bool backwards)
{
recordUndo(cur);
DocIterator selbeg = cur.selectionBegin();
// Get font setting before we cut
Font const font =
selbeg.paragraph().getFontSettings(cur.buffer().params(), selbeg.pos());
// Insert the new string
pos_type pos = cur.selEnd().pos();
Paragraph & par = cur.selEnd().paragraph();
docstring::const_iterator cit = str.begin();
docstring::const_iterator end = str.end();
for (; cit != end; ++cit, ++pos)
par.insertChar(pos, *cit, font, cur.buffer().params().trackChanges);
// Cut the selection
cutSelection(cur, true, false);
// select the replacement
if (backwards) {
selbeg.pos() += str.length();
cur.setSelection(selbeg, -int(str.length()));
} else
cur.setSelection(selbeg, str.length());
}
void replaceSelection(Cursor & cur)
{
if (cur.selection())
cutSelection(cur, true, false);
}
void eraseSelection(Cursor & cur)
{
//lyxerr << "cap::eraseSelection begin: " << cur << endl;
CursorSlice const & i1 = cur.selBegin();
CursorSlice const & i2 = cur.selEnd();
if (i1.inset().asInsetMath()) {
saveSelection(cur);
cur.top() = i1;
if (i1.idx() == i2.idx()) {
i1.cell().erase(i1.pos(), i2.pos());
// We may have deleted i1.cell(cur.pos()).
// Make sure that pos is valid.
if (cur.pos() > cur.lastpos())
cur.pos() = cur.lastpos();
} else {
InsetMath * p = i1.asInsetMath();
Inset::row_type r1, r2;
Inset::col_type c1, c2;
region(i1, i2, r1, r2, c1, c2);
for (Inset::row_type row = r1; row <= r2; ++row)
for (Inset::col_type col = c1; col <= c2; ++col)
p->cell(p->index(row, col)).clear();
// We've deleted the whole cell. Only pos 0 is valid.
cur.pos() = 0;
}
// need a valid cursor. (Lgb)
cur.clearSelection();
} else {
lyxerr << "can't erase this selection 1" << endl;
}
//lyxerr << "cap::eraseSelection end: " << cur << endl;
}
void selDel(Cursor & cur)
{
//lyxerr << "cap::selDel" << endl;
if (cur.selection())
eraseSelection(cur);
}
void selClearOrDel(Cursor & cur)
{
//lyxerr << "cap::selClearOrDel" << endl;
if (lyxrc.auto_region_delete)
selDel(cur);
else
cur.selection() = false;
}
docstring grabSelection(Cursor const & cur)
{
if (!cur.selection())
return docstring();
// FIXME: What is wrong with the following?
#if 0
std::ostringstream os;
for (DocIterator dit = cur.selectionBegin();
dit != cur.selectionEnd(); dit.forwardPos())
os << asString(dit.cell());
return os.str();
#endif
CursorSlice i1 = cur.selBegin();
CursorSlice i2 = cur.selEnd();
if (i1.idx() == i2.idx()) {
if (i1.inset().asInsetMath()) {
MathData::const_iterator it = i1.cell().begin();
return asString(MathData(it + i1.pos(), it + i2.pos()));
} else {
return from_ascii("unknown selection 1");
}
}
Inset::row_type r1, r2;
Inset::col_type c1, c2;
region(i1, i2, r1, r2, c1, c2);
docstring data;
if (i1.inset().asInsetMath()) {
for (Inset::row_type row = r1; row <= r2; ++row) {
if (row > r1)
data += "\\\\";
for (Inset::col_type col = c1; col <= c2; ++col) {
if (col > c1)
data += '&';
data += asString(i1.asInsetMath()->
cell(i1.asInsetMath()->index(row, col)));
}
}
} else {
data = from_ascii("unknown selection 2");
}
return data;
}
void dirtyTabularStack(bool b)
{
dirty_tabular_stack_ = b;
}
bool tabularStackDirty()
{
return dirty_tabular_stack_;
}
} // namespace cap
} // namespace lyx