diff options
Diffstat (limited to 'starmath')
| -rw-r--r-- | starmath/source/cursor.cxx | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/starmath/source/cursor.cxx b/starmath/source/cursor.cxx index ed81f1e47538..9edb83ea1e2f 100644 --- a/starmath/source/cursor.cxx +++ b/starmath/source/cursor.cxx @@ -205,18 +205,21 @@ void SmCursor::DeletePrev(OutputDevice* pDev){ //Line to merge things into, so we can delete pLine SmNode* pMergeLine = pLineParent->GetSubNode(nLineOffset-1); OSL_ENSURE(pMergeLine, "pMergeLine cannot be NULL!"); + SmCaretPos PosAfterDelete; //Convert first line to list SmNodeList *pLineList = NodeToList(pMergeLine); - //Find iterator to patch - SmNodeList::iterator patchPoint = pLineList->end(); - --patchPoint; - //Convert second line to list - NodeToList(pLine, pLineList); - //Patch the line list - ++patchPoint; - SmCaretPos PosAfterDelete = PatchLineList(pLineList, patchPoint); - //Parse the line - pLine = SmNodeListParser().Parse(pLineList); + if(!pLineList->empty()){ + //Find iterator to patch + SmNodeList::iterator patchPoint = pLineList->end(); + --patchPoint; + //Convert second line to list + NodeToList(pLine, pLineList); + //Patch the line list + ++patchPoint; + PosAfterDelete = PatchLineList(pLineList, patchPoint); + //Parse the line + pLine = SmNodeListParser().Parse(pLineList); + } delete pLineList; pLineParent->SetSubNode(nLineOffset-1, pLine); //Delete the removed line slot |