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* text.C (backspacePos0): rewrite to make it simple and allow

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deleting empty paragraphs even when keepempty is true. Do not rely
	on dEPM, since this was silly (bugs 2587 and 2882)
	(Delete): simplify also and avoid calling backspace.
	(backspace): small tweak.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/branches/BRANCH_1_4_X@15547 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Jean-Marc Lasgouttes 2006-10-25 12:18:56 +00:00
parent e48fd46d5f
commit c57bff5fa5
3 changed files with 71 additions and 81 deletions
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8
src/ChangeLog
View File

@ -1,3 +1,11 @@
2006-10-25 Jean-Marc Lasgouttes <lasgouttes@lyx.org>
* text.C (backspacePos0): rewrite to make it simple and allow
deleting empty paragraphs even when keepempty is true. Do not rely
on dEPM, since this was silly (bugs 2587 and 2882)
(Delete): simplify also and avoid calling backspace.
(backspace): small tweak.
2006-10-09 Jürgen Spitzmüller <j.spitzmueller@gmx.de>
* buffer.[Ch] (changeRefsIfUnique): extend to handle bibitems

140
src/text.C
View File

@ -1589,31 +1589,35 @@ bool LyXText::Delete(LCursor & cur)
{
BOOST_ASSERT(this == cur.text());
bool needsUpdate = false;
Paragraph & par = cur.paragraph();
if (cur.pos() != cur.lastpos()) {
recordUndo(cur, Undo::DELETE, cur.pit());
setCursorIntern(cur, cur.pit(), cur.pos() + 1, false, cur.boundary());
needsUpdate = backspace(cur);
if (cur.paragraph().lookupChange(cur.pos()) == Change::DELETED)
cur.posRight();
// this is the code for a normal delete, not pasting
// any paragraphs
recordUndo(cur, Undo::DELETE);
par.erase(cur.pos());
if (par.lookupChange(cur.pos()) == Change::DELETED)
cur.forwardPos();
needsUpdate = true;
} else if (cur.pit() != cur.lastpit()) {
LCursor scur = cur;
setCursorIntern(cur, cur.pit() + 1, 0, false, false);
if (pars_[cur.pit()].layout() == pars_[scur.pit()].layout()) {
recordUndo(scur, Undo::DELETE, scur.pit());
needsUpdate = backspace(cur);
if (cur.buffer().params().tracking_changes) {
// move forward after the paragraph break is DELETED
Paragraph & par = cur.paragraph();
if (par.lookupChange(par.size()) == Change::DELETED)
setCursorIntern(cur, cur.pit() + 1, 0);
}
if (cur.buffer().params().tracking_changes
&& par.lookupChange(cur.pos()) != Change::INSERTED) {
// mark "carriage return" as deleted:
par.setChange(cur.pos(), Change::DELETED);
cur.forwardPos();
needsUpdate = true;
} else {
setCursorIntern(scur, scur.pit(), scur.pos(), false, scur.boundary());
setCursorIntern(cur, cur.pit() + 1, 0);
needsUpdate = backspacePos0(cur);
if (cur.paragraph().lookupChange(cur.pos()) == Change::DELETED)
cur.forwardPos();
}
} else
needsUpdate = dissolveInset(cur);
// Make sure the cursor is correct. Is this really needed?
if (needsUpdate)
setCursorIntern(cur, cur.pit(), cur.pos());
return needsUpdate;
}
@ -1622,73 +1626,50 @@ bool LyXText::Delete(LCursor & cur)
bool LyXText::backspacePos0(LCursor & cur)
{
BOOST_ASSERT(this == cur.text());
if (cur.pit() == 0)
return false;
bool needsUpdate = false;
Paragraph & par = cur.paragraph();
BufferParams const & bufparams = cur.buffer().params();
LyXTextClass const & tclass = bufparams.getLyXTextClass();
ParagraphList & plist = cur.text()->paragraphs();
Paragraph const & par = cur.paragraph();
LCursor prevcur = cur;
--prevcur.pit();
prevcur.pos() = prevcur.lastpos();
Paragraph const & prevpar = prevcur.paragraph();
// is it an empty paragraph?
pos_type lastpos = cur.lastpos();
if (lastpos == 0 || (lastpos == 1 && par.isSeparator(0))) {
// This is an empty paragraph and we delete it just
// by moving the cursor one step
// left and let the DeleteEmptyParagraphMechanism
// handle the actual deletion of the paragraph.
if (cur.pit() != 0) {
// For KeepEmpty layouts we need to get
// rid of the keepEmpty setting first.
// And the only way to do this is to
// reset the layout to something
// else: f.ex. the default layout.
if (par.allowEmpty()) {
Buffer & buf = cur.buffer();
BufferParams const & bparams = buf.params();
par.layout(bparams.getLyXTextClass().defaultLayout());
}
cursorLeft(cur);
return true;
}
if (cur.lastpos() == 0
|| (cur.lastpos() == 1 && par.isSeparator(0))) {
recordUndo(cur, Undo::ATOMIC, prevcur.pit(), cur.pit());
plist.erase(boost::next(plist.begin(), cur.pit()));
needsUpdate = true;
}
if (cur.pit() != 0)
recordUndo(cur, Undo::DELETE, cur.pit() - 1);
pit_type tmppit = cur.pit();
// We used to do cursorLeftIntern() here, but it is
// not a good idea since it triggers the auto-delete
// mechanism. So we do a cursorLeftIntern()-lite,
// without the dreaded mechanism. (JMarc)
if (cur.pit() != 0) {
// steps into the above paragraph.
setCursorIntern(cur, cur.pit() - 1,
pars_[cur.pit() - 1].size(),
false);
// is previous par empty?
else if (prevcur.lastpos() == 0
|| (prevcur.lastpos() == 1 && prevpar.isSeparator(0))) {
recordUndo(cur, Undo::ATOMIC, prevcur.pit(), cur.pit());
plist.erase(boost::next(plist.begin(), prevcur.pit()));
needsUpdate = true;
}
// Pasting is not allowed, if the paragraphs have different
// layout. I think it is a real bug of all other
// word processors to allow it. It confuses the user.
// Correction: Pasting is always allowed with standard-layout
// Correction (Jug 20050717): Remove check about alignment!
Buffer & buf = cur.buffer();
BufferParams const & bufparams = buf.params();
LyXTextClass const & tclass = bufparams.getLyXTextClass();
pit_type const cpit = cur.pit();
if (cpit != tmppit
&& (pars_[cpit].layout() == pars_[tmppit].layout()
|| pars_[tmppit].layout() == tclass.defaultLayout()))
{
mergeParagraph(bufparams, pars_, cpit);
else if (par.layout() == prevpar.layout()
|| par.layout() == tclass.defaultLayout()) {
recordUndo(cur, Undo::ATOMIC, prevcur.pit());
mergeParagraph(bufparams, plist, prevcur.pit());
needsUpdate = true;
if (cur.pos() != 0 && pars_[cpit].isSeparator(cur.pos() - 1))
--cur.pos();
// the counters may have changed
updateCounters(cur.buffer());
setCursor(cur, cur.pit(), cur.pos(), false);
}
if (needsUpdate) {
updateCounters(cur.buffer());
setCursorIntern(cur, prevcur.pit(), prevcur.pos());
}
return needsUpdate;
}
@ -1701,11 +1682,7 @@ bool LyXText::backspace(LCursor & cur)
if (cur.pit() == 0)
return dissolveInset(cur);
// The cursor is at the beginning of a paragraph, so
// the the backspace will collapse two paragraphs into
// one.
if (cur.pit() != 0 && cur.buffer().params().tracking_changes) {
if (cur.buffer().params().tracking_changes) {
// Previous paragraph, mark "carriage return" as
// deleted:
Paragraph & par = pars_[cur.pit() - 1];
@ -1717,6 +1694,8 @@ bool LyXText::backspace(LCursor & cur)
}
}
// The cursor is at the beginning of a paragraph, so
// the backspace will collapse two paragraphs into one.
needsUpdate = backspacePos0(cur);
} else {
@ -1727,8 +1706,7 @@ bool LyXText::backspace(LCursor & cur)
// not a good idea since it triggers the auto-delete
// mechanism. So we do a cursorLeftIntern()-lite,
// without the dreaded mechanism. (JMarc)
setCursorIntern(cur, cur.pit(), cur.pos() - 1,
false, cur.boundary());
setCursorIntern(cur, cur.pit(), cur.pos() - 1);
cur.paragraph().erase(cur.pos());
}

4
status.14x
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@ -54,6 +54,10 @@ What's new
windows). This fix was already used by the official windows installer for
1.4.3.
- Fix deletion of empty paragraph in various situations: paragraphs
with different layouts, layouts with KeepEmpty property, ERT insets
(bugs 2587 and 2882)
- Fix cursor positioning when opening the VSpace dialog (bug 2869).
- Give a better error message for missing layout include files