static void ME_PlayUndoItem(ME_TextEditor *editor, ME_DisplayItem *pItem)
{
ME_UndoItem *pUItem = (ME_UndoItem *)pItem;
if (editor->nUndoMode == umIgnore)
return;
TRACE("Playing undo/redo item, id=%s\n", ME_GetDITypeName(pItem->type));
switch(pItem->type)
{
case diUndoPotentialEndTransaction:
case diUndoEndTransaction:
assert(0);
case diUndoSetParagraphFormat:
{
ME_Cursor tmp;
ME_DisplayItem *para;
ME_CursorFromCharOfs(editor, pItem->member.para.nCharOfs, &tmp);
para = ME_FindItemBack(tmp.pRun, diParagraph);
ME_AddUndoItem(editor, diUndoSetParagraphFormat, para);
*para->member.para.pFmt = *pItem->member.para.pFmt;
para->member.para.border = pItem->member.para.border;
break;
}
case diUndoSetCharFormat:
{
ME_SetCharFormat(editor, pUItem->nStart, pUItem->nLen, &pItem->member.ustyle->fmt);
break;
}
case diUndoInsertRun:
{
ME_InsertRun(editor, pItem->member.run.nCharOfs, pItem);
break;
}
case diUndoDeleteRun:
{
ME_InternalDeleteText(editor, pUItem->nStart, pUItem->nLen, TRUE);
break;
}
case diUndoJoinParagraphs:
{
ME_Cursor tmp;
ME_CursorFromCharOfs(editor, pUItem->nStart, &tmp);
/* the only thing that's needed is paragraph offset, so no need to split runs */
ME_JoinParagraphs(editor, ME_GetParagraph(tmp.pRun), TRUE);
break;
}
case diUndoSplitParagraph:
{
ME_Cursor tmp;
ME_DisplayItem *this_para, *new_para;
BOOL bFixRowStart;
int paraFlags = pItem->member.para.nFlags & (MEPF_ROWSTART|MEPF_CELL|MEPF_ROWEND);
ME_CursorFromCharOfs(editor, pUItem->nStart, &tmp);
if (tmp.nOffset)
tmp.pRun = ME_SplitRunSimple(editor, tmp.pRun, tmp.nOffset);
assert(pUItem->nCR >= 0);
assert(pUItem->nLF >= 0);
this_para = ME_GetParagraph(tmp.pRun);
bFixRowStart = this_para->member.para.nFlags & MEPF_ROWSTART;
if (bFixRowStart)
{
/* Re-insert the paragraph before the table, making sure the nFlag value
* is correct. */
this_para->member.para.nFlags &= ~MEPF_ROWSTART;
}
new_para = ME_SplitParagraph(editor, tmp.pRun, tmp.pRun->member.run.style,
pUItem->nCR, pUItem->nLF, paraFlags);
if (bFixRowStart)
new_para->member.para.nFlags |= MEPF_ROWSTART;
assert(pItem->member.para.pFmt->cbSize == sizeof(PARAFORMAT2));
*new_para->member.para.pFmt = *pItem->member.para.pFmt;
new_para->member.para.border = pItem->member.para.border;
if (pItem->member.para.pCell)
{
ME_DisplayItem *pItemCell, *pCell;
pItemCell = pItem->member.para.pCell;
pCell = new_para->member.para.pCell;
pCell->member.cell.nRightBoundary = pItemCell->member.cell.nRightBoundary;
pCell->member.cell.border = pItemCell->member.cell.border;
}
break;
}
default:
assert(0 == "PlayUndoItem, unexpected type");
}
}
/* join tp with tp->member.para.next_para, keeping tp's style; this
* is consistent with the original */
ME_DisplayItem *ME_JoinParagraphs(ME_TextEditor *editor, ME_DisplayItem *tp,
BOOL keepFirstParaFormat)
{
ME_DisplayItem *pNext, *pFirstRunInNext, *pRun, *pTmp, *pCell = NULL;
int i, shift;
int end_len;
CHARFORMAT2W fmt;
ME_Cursor startCur, endCur;
ME_String *eol_str;
assert(tp->type == diParagraph);
assert(tp->member.para.next_para);
assert(tp->member.para.next_para->type == diParagraph);
pNext = tp->member.para.next_para;
/* Need to locate end-of-paragraph run here, in order to know end_len */
pRun = ME_FindItemBack(pNext, diRunOrParagraph);
assert(pRun);
assert(pRun->type == diRun);
assert(pRun->member.run.nFlags & MERF_ENDPARA);
end_len = pRun->member.run.len;
eol_str = ME_VSplitString( tp->member.para.text, pRun->member.run.nCharOfs );
ME_AppendString( tp->member.para.text, pNext->member.para.text->szData, pNext->member.para.text->nLen );
/* null char format operation to store the original char format for the ENDPARA run */
ME_InitCharFormat2W(&fmt);
endCur.pPara = pNext;
endCur.pRun = ME_FindItemFwd(pNext, diRun);
endCur.nOffset = 0;
startCur = endCur;
ME_PrevRun(&startCur.pPara, &startCur.pRun);
ME_SetCharFormat(editor, &startCur, &endCur, &fmt);
if (!editor->bEmulateVersion10) { /* v4.1 */
/* Table cell/row properties are always moved over from the removed para. */
tp->member.para.nFlags = pNext->member.para.nFlags;
tp->member.para.pCell = pNext->member.para.pCell;
/* Remove cell boundary if it is between the end paragraph run and the next
* paragraph display item. */
for (pTmp = pRun->next; pTmp != pNext; pTmp = pTmp->next)
{
if (pTmp->type == diCell)
{
pCell = pTmp;
break;
}
}
}
add_undo_split_para( editor, &pNext->member.para, eol_str, pCell ? &pCell->member.cell : NULL );
if (pCell)
{
ME_Remove( pCell );
if (pCell->member.cell.prev_cell)
pCell->member.cell.prev_cell->member.cell.next_cell = pCell->member.cell.next_cell;
if (pCell->member.cell.next_cell)
pCell->member.cell.next_cell->member.cell.prev_cell = pCell->member.cell.prev_cell;
ME_DestroyDisplayItem( pCell );
}
if (!keepFirstParaFormat)
{
add_undo_set_para_fmt( editor, &tp->member.para );
*tp->member.para.pFmt = *pNext->member.para.pFmt;
tp->member.para.border = pNext->member.para.border;
}
shift = pNext->member.para.nCharOfs - tp->member.para.nCharOfs - end_len;
pFirstRunInNext = ME_FindItemFwd(pNext, diRunOrParagraph);
assert(pFirstRunInNext->type == diRun);
/* Update selection cursors so they don't point to the removed end
* paragraph run, and point to the correct paragraph. */
for (i=0; i < editor->nCursors; i++) {
if (editor->pCursors[i].pRun == pRun) {
editor->pCursors[i].pRun = pFirstRunInNext;
editor->pCursors[i].nOffset = 0;
} else if (editor->pCursors[i].pPara == pNext) {
editor->pCursors[i].pPara = tp;
}
}
pTmp = pNext;
do {
pTmp = ME_FindItemFwd(pTmp, diRunOrParagraphOrEnd);
if (pTmp->type != diRun)
break;
TRACE("shifting %s by %d (previous %d)\n", debugstr_run( &pTmp->member.run ), shift, pTmp->member.run.nCharOfs);
pTmp->member.run.nCharOfs += shift;
pTmp->member.run.para = &tp->member.para;
} while(1);
ME_Remove(pRun);
ME_DestroyDisplayItem(pRun);
if (editor->pLastSelStartPara == pNext)
editor->pLastSelStartPara = tp;
if (editor->pLastSelEndPara == pNext)
editor->pLastSelEndPara = tp;
tp->member.para.next_para = pNext->member.para.next_para;
pNext->member.para.next_para->member.para.prev_para = tp;
ME_Remove(pNext);
ME_DestroyDisplayItem(pNext);
ME_PropagateCharOffset(tp->member.para.next_para, -end_len);
ME_CheckCharOffsets(editor);
editor->nParagraphs--;
tp->member.para.nFlags |= MEPF_REWRAP;
return tp;
}
static void ME_PlayUndoItem(ME_TextEditor *editor, ME_DisplayItem *pItem)
{
ME_UndoItem *pUItem = (ME_UndoItem *)pItem;
if (editor->nUndoMode == umIgnore)
return;
TRACE("Playing undo/redo item, id=%s\n", ME_GetDITypeName(pItem->type));
switch(pItem->type)
{
case diUndoEndTransaction:
assert(0);
case diUndoSetParagraphFormat:
{
ME_Cursor tmp;
ME_CursorFromCharOfs(editor, pItem->member.para.nCharOfs, &tmp);
ME_SetParaFormat(editor, ME_FindItemBack(tmp.pRun, diParagraph), pItem->member.para.pFmt);
break;
}
case diUndoSetCharFormat:
{
ME_SetCharFormat(editor, pUItem->nStart, pUItem->nLen, &pItem->member.ustyle->fmt);
break;
}
case diUndoSetDefaultCharFormat:
{
ME_SetDefaultCharFormat(editor, &pItem->member.ustyle->fmt);
break;
}
case diUndoInsertRun:
{
ME_InsertRun(editor, pItem->member.run.nCharOfs, pItem);
break;
}
case diUndoDeleteRun:
{
ME_InternalDeleteText(editor, pUItem->nStart, pUItem->nLen);
break;
}
case diUndoJoinParagraphs:
{
ME_Cursor tmp;
ME_CursorFromCharOfs(editor, pUItem->nStart, &tmp);
/* the only thing that's needed is paragraph offset, so no need to split runs */
ME_JoinParagraphs(editor, ME_GetParagraph(tmp.pRun));
break;
}
case diUndoSplitParagraph:
{
ME_Cursor tmp;
ME_DisplayItem *new_para;
ME_CursorFromCharOfs(editor, pUItem->nStart, &tmp);
if (tmp.nOffset)
tmp.pRun = ME_SplitRunSimple(editor, tmp.pRun, tmp.nOffset);
assert(pUItem->nCR >= 0);
assert(pUItem->nLF >= 0);
new_para = ME_SplitParagraph(editor, tmp.pRun, tmp.pRun->member.run.style,
pUItem->nCR, pUItem->nLF);
assert(pItem->member.para.pFmt->cbSize == sizeof(PARAFORMAT2));
*new_para->member.para.pFmt = *pItem->member.para.pFmt;
break;
}
default:
assert(0 == "PlayUndoItem, unexpected type");
}
}
/* join tp with tp->member.para.next_para, keeping tp's style; this
* is consistent with the original */
ME_DisplayItem *ME_JoinParagraphs(ME_TextEditor *editor, ME_DisplayItem *tp,
BOOL keepFirstParaFormat)
{
ME_DisplayItem *pNext, *pFirstRunInNext, *pRun, *pTmp;
int i, shift;
ME_UndoItem *undo = NULL;
int end_len;
CHARFORMAT2W fmt;
ME_Cursor startCur, endCur;
assert(tp->type == diParagraph);
assert(tp->member.para.next_para);
assert(tp->member.para.next_para->type == diParagraph);
pNext = tp->member.para.next_para;
/* Need to locate end-of-paragraph run here, in order to know end_len */
pRun = ME_FindItemBack(pNext, diRunOrParagraph);
assert(pRun);
assert(pRun->type == diRun);
assert(pRun->member.run.nFlags & MERF_ENDPARA);
end_len = pRun->member.run.strText->nLen;
/* null char format operation to store the original char format for the ENDPARA run */
ME_InitCharFormat2W(&fmt);
endCur.pPara = pNext;
endCur.pRun = ME_FindItemFwd(pNext, diRun);
endCur.nOffset = 0;
startCur = endCur;
ME_PrevRun(&startCur.pPara, &startCur.pRun);
ME_SetCharFormat(editor, &startCur, &endCur, &fmt);
undo = ME_AddUndoItem(editor, diUndoSplitParagraph, pNext);
if (undo)
{
undo->nStart = pNext->member.para.nCharOfs - end_len;
undo->eol_str = pRun->member.run.strText;
pRun->member.run.strText = NULL; /* Avoid freeing the string */
}
if (!keepFirstParaFormat)
{
ME_AddUndoItem(editor, diUndoSetParagraphFormat, tp);
*tp->member.para.pFmt = *pNext->member.para.pFmt;
tp->member.para.border = pNext->member.para.border;
}
if (!editor->bEmulateVersion10) { /* v4.1 */
/* Table cell/row properties are always moved over from the removed para. */
tp->member.para.nFlags = pNext->member.para.nFlags;
tp->member.para.pCell = pNext->member.para.pCell;
/* Remove cell boundary if it is between the end paragraph run and the next
* paragraph display item. */
pTmp = pRun->next;
while (pTmp != pNext) {
if (pTmp->type == diCell)
{
ME_Cell *pCell = &pTmp->member.cell;
if (undo)
{
assert(!(undo->di.member.para.nFlags & MEPF_ROWEND));
if (!(undo->di.member.para.nFlags & MEPF_ROWSTART))
undo->di.member.para.nFlags |= MEPF_CELL;
undo->di.member.para.pCell = ALLOC_OBJ(ME_DisplayItem);
*undo->di.member.para.pCell = *pTmp;
undo->di.member.para.pCell->next = NULL;
undo->di.member.para.pCell->prev = NULL;
undo->di.member.para.pCell->member.cell.next_cell = NULL;
undo->di.member.para.pCell->member.cell.prev_cell = NULL;
}
ME_Remove(pTmp);
if (pCell->prev_cell)
pCell->prev_cell->member.cell.next_cell = pCell->next_cell;
if (pCell->next_cell)
pCell->next_cell->member.cell.prev_cell = pCell->prev_cell;
ME_DestroyDisplayItem(pTmp);
break;
}
pTmp = pTmp->next;
}
}
shift = pNext->member.para.nCharOfs - tp->member.para.nCharOfs - end_len;
pFirstRunInNext = ME_FindItemFwd(pNext, diRunOrParagraph);
assert(pFirstRunInNext->type == diRun);
/* Update selection cursors so they don't point to the removed end
* paragraph run, and point to the correct paragraph. */
for (i=0; i < editor->nCursors; i++) {
if (editor->pCursors[i].pRun == pRun) {
editor->pCursors[i].pRun = pFirstRunInNext;
editor->pCursors[i].nOffset = 0;
} else if (editor->pCursors[i].pPara == pNext) {
editor->pCursors[i].pPara = tp;
}
}
pTmp = pNext;
do {
pTmp = ME_FindItemFwd(pTmp, diRunOrParagraphOrEnd);
if (pTmp->type != diRun)
break;
TRACE("shifting \"%s\" by %d (previous %d)\n", debugstr_w(pTmp->member.run.strText->szData), shift, pTmp->member.run.nCharOfs);
pTmp->member.run.nCharOfs += shift;
} while(1);
ME_Remove(pRun);
ME_DestroyDisplayItem(pRun);
if (editor->pLastSelStartPara == pNext)
editor->pLastSelStartPara = tp;
if (editor->pLastSelEndPara == pNext)
editor->pLastSelEndPara = tp;
tp->member.para.next_para = pNext->member.para.next_para;
pNext->member.para.next_para->member.para.prev_para = tp;
ME_Remove(pNext);
ME_DestroyDisplayItem(pNext);
ME_PropagateCharOffset(tp->member.para.next_para, -end_len);
ME_CheckCharOffsets(editor);
editor->nParagraphs--;
tp->member.para.nFlags |= MEPF_REWRAP;
return tp;
}