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* fix segfaults/asserts when clicking outside of any inset when the

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cursor is inside of an empty script.
* Do not use the cur parameter of notifyCursorLeaves as a pointer to
  the script inset. It is not. Even worth, it's an empty cursor if the user
  clicks in the grey nirvana of the BufferView.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@22910 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Stefan Schimanski 2008-02-09 22:06:06 +00:00
parent 59e75f8cb5
commit c4b009a248
1 changed files with 21 additions and 14 deletions
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35
src/mathed/InsetMathScript.cpp
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@ -10,16 +10,18 @@
#include <config.h>
#include "BufferView.h"
#include "Cursor.h"
#include "DispatchResult.h"
#include "FuncRequest.h"
#include "InsetMathFont.h"
#include "InsetMathScript.h"
#include "InsetMathSymbol.h"
#include "MathData.h"
#include "MathStream.h"
#include "MathSupport.h"
#include "InsetMathSymbol.h"
#include "InsetMathFont.h"
#include "DispatchResult.h"
#include "Cursor.h"
#include "support/debug.h"
#include "FuncRequest.h"
#include <boost/assert.hpp>
@ -671,13 +673,11 @@ bool InsetMathScript::notifyCursorLeaves(Cursor & cur)
if (nargs() > 2 && (!cell(1).empty() || !cell(2).empty())) {
if (cell(2).empty()) {
// must be a subscript...
cur.recordUndoInset();
removeScript(false);
cur.updateFlags(cur.disp_.update() | Update::SinglePar);
return true;
} else if (cell(1).empty()) {
// must be a superscript...
cur.recordUndoInset();
removeScript(true);
cur.updateFlags(cur.disp_.update() | Update::SinglePar);
return true;
@ -689,18 +689,25 @@ bool InsetMathScript::notifyCursorLeaves(Cursor & cur)
// The script inset is removed completely.
if ((nargs() == 2 && cell(1).empty())
|| (nargs() == 3 && cell(1).empty() && cell(2).empty())) {
// could be either subscript or super script
cur.recordUndoInset();
// Make undo step. We cannot use cur for this because
// it does not necessarily point to us. The BufferView
// cursor though should do.
int scriptSlice
= cur.bv().cursor().find(this);
BOOST_ASSERT(scriptSlice != -1);
Cursor scriptCur = cur.bv().cursor();
scriptCur.cutOff(scriptSlice);
scriptCur.recordUndoInset();
// Let the script inset commit suicide. This is
// modelled on Cursor.pullArg(), but tries not to
// invoke notifyCursorLeaves again and does not touch
// cur (since the top slice will be deleted
// afterwards))
// afterwards)
MathData ar = cell(0);
Cursor tmpcur = cur;
tmpcur.pop();
tmpcur.cell().erase(tmpcur.pos());
tmpcur.cell().insert(tmpcur.pos(), ar);
scriptCur.pop();
scriptCur.cell().erase(scriptCur.pos());
scriptCur.cell().insert(scriptCur.pos(), ar);
cur.updateFlags(cur.disp_.update() | Update::SinglePar);
return true;
}