/* split paragraph at the beginning of the run */
ME_DisplayItem *ME_SplitParagraph(ME_TextEditor *editor, ME_DisplayItem *run,
ME_Style *style, const WCHAR *eol_str, int eol_len,
int paraFlags)
{
ME_DisplayItem *next_para = NULL;
ME_DisplayItem *run_para = NULL;
ME_DisplayItem *new_para = make_para(editor);
ME_DisplayItem *end_run;
int ofs, i;
ME_DisplayItem *pp;
int run_flags = MERF_ENDPARA;
if (!editor->bEmulateVersion10) { /* v4.1 */
/* At most 1 of MEPF_CELL, MEPF_ROWSTART, or MEPF_ROWEND should be set. */
assert(!(paraFlags & ~(MEPF_CELL|MEPF_ROWSTART|MEPF_ROWEND)));
assert(!(paraFlags & (paraFlags-1)));
if (paraFlags == MEPF_CELL)
run_flags |= MERF_ENDCELL;
else if (paraFlags == MEPF_ROWSTART)
run_flags |= MERF_TABLESTART|MERF_HIDDEN;
} else { /* v1.0 - v3.0 */
assert(!(paraFlags & (MEPF_CELL|MEPF_ROWSTART|MEPF_ROWEND)));
}
assert(run->type == diRun);
run_para = ME_GetParagraph(run);
assert(run_para->member.para.pFmt->cbSize == sizeof(PARAFORMAT2));
new_para->member.para.text = ME_VSplitString( run_para->member.para.text, run->member.run.nCharOfs );
end_run = ME_MakeRun(style, run_flags);
ofs = end_run->member.run.nCharOfs = run->member.run.nCharOfs;
end_run->member.run.len = eol_len;
end_run->member.run.para = run->member.run.para;
ME_AppendString( run_para->member.para.text, eol_str, eol_len );
next_para = run_para->member.para.next_para;
assert(next_para == ME_FindItemFwd(run_para, diParagraphOrEnd));
add_undo_join_paras( editor, run_para->member.para.nCharOfs + ofs );
/* Update selection cursors to point to the correct paragraph. */
for (i = 0; i < editor->nCursors; i++) {
if (editor->pCursors[i].pPara == run_para &&
run->member.run.nCharOfs <= editor->pCursors[i].pRun->member.run.nCharOfs)
{
editor->pCursors[i].pPara = new_para;
}
}
/* the new paragraph will have a different starting offset, so let's update its runs */
pp = run;
while(pp->type == diRun) {
pp->member.run.nCharOfs -= ofs;
pp->member.run.para = &new_para->member.para;
pp = ME_FindItemFwd(pp, diRunOrParagraphOrEnd);
}
new_para->member.para.nCharOfs = run_para->member.para.nCharOfs + ofs;
new_para->member.para.nCharOfs += eol_len;
new_para->member.para.nFlags = MEPF_REWRAP;
/* FIXME initialize format style and call ME_SetParaFormat blah blah */
*new_para->member.para.pFmt = *run_para->member.para.pFmt;
new_para->member.para.border = run_para->member.para.border;
/* insert paragraph into paragraph double linked list */
new_para->member.para.prev_para = run_para;
new_para->member.para.next_para = next_para;
run_para->member.para.next_para = new_para;
next_para->member.para.prev_para = new_para;
/* insert end run of the old paragraph, and new paragraph, into DI double linked list */
ME_InsertBefore(run, new_para);
ME_InsertBefore(new_para, end_run);
if (!editor->bEmulateVersion10) { /* v4.1 */
if (paraFlags & (MEPF_ROWSTART|MEPF_CELL))
{
ME_DisplayItem *cell = ME_MakeDI(diCell);
ME_InsertBefore(new_para, cell);
new_para->member.para.pCell = cell;
cell->member.cell.next_cell = NULL;
if (paraFlags & MEPF_ROWSTART)
{
run_para->member.para.nFlags |= MEPF_ROWSTART;
cell->member.cell.prev_cell = NULL;
cell->member.cell.parent_cell = run_para->member.para.pCell;
if (run_para->member.para.pCell)
cell->member.cell.nNestingLevel = run_para->member.para.pCell->member.cell.nNestingLevel + 1;
else
cell->member.cell.nNestingLevel = 1;
} else {
cell->member.cell.prev_cell = run_para->member.para.pCell;
assert(cell->member.cell.prev_cell);
cell->member.cell.prev_cell->member.cell.next_cell = cell;
assert(run_para->member.para.nFlags & MEPF_CELL);
assert(!(run_para->member.para.nFlags & MEPF_ROWSTART));
cell->member.cell.nNestingLevel = cell->member.cell.prev_cell->member.cell.nNestingLevel;
cell->member.cell.parent_cell = cell->member.cell.prev_cell->member.cell.parent_cell;
}
} else if (paraFlags & MEPF_ROWEND) {
run_para->member.para.nFlags |= MEPF_ROWEND;
run_para->member.para.pCell = run_para->member.para.pCell->member.cell.parent_cell;
new_para->member.para.pCell = run_para->member.para.pCell;
assert(run_para->member.para.prev_para->member.para.nFlags & MEPF_CELL);
assert(!(run_para->member.para.prev_para->member.para.nFlags & MEPF_ROWSTART));
if (new_para->member.para.pCell != new_para->member.para.next_para->member.para.pCell
&& new_para->member.para.next_para->member.para.pCell
&& !new_para->member.para.next_para->member.para.pCell->member.cell.prev_cell)
{
/* Row starts just after the row that was ended. */
new_para->member.para.nFlags |= MEPF_ROWSTART;
}
} else {
new_para->member.para.pCell = run_para->member.para.pCell;
}
ME_UpdateTableFlags(run_para);
ME_UpdateTableFlags(new_para);
}
/* force rewrap of the */
run_para->member.para.prev_para->member.para.nFlags |= MEPF_REWRAP;
new_para->member.para.prev_para->member.para.nFlags |= MEPF_REWRAP;
/* we've added the end run, so we need to modify nCharOfs in the next paragraphs */
ME_PropagateCharOffset(next_para, eol_len);
editor->nParagraphs++;
return new_para;
}
/* split paragraph at the beginning of the run */
ME_DisplayItem *ME_SplitParagraph(ME_TextEditor *editor, ME_DisplayItem *run,
ME_Style *style, int numCR, int numLF,
int paraFlags)
{
ME_DisplayItem *next_para = NULL;
ME_DisplayItem *run_para = NULL;
ME_DisplayItem *new_para = ME_MakeDI(diParagraph);
ME_DisplayItem *end_run;
ME_UndoItem *undo = NULL;
int ofs;
ME_DisplayItem *pp;
int end_len = numCR + numLF;
int run_flags = MERF_ENDPARA;
if (!editor->bEmulateVersion10) { /* v4.1 */
/* At most 1 of MEPF_CELL, MEPF_ROWSTART, or MEPF_ROWEND should be set. */
assert(!(paraFlags & ~(MEPF_CELL|MEPF_ROWSTART|MEPF_ROWEND)));
assert(!(paraFlags & (paraFlags-1)));
if (paraFlags == MEPF_CELL)
run_flags |= MERF_ENDCELL;
else if (paraFlags == MEPF_ROWSTART)
run_flags |= MERF_TABLESTART|MERF_HIDDEN;
} else { /* v1.0 - v3.0 */
assert(!(paraFlags & (MEPF_CELL|MEPF_ROWSTART|MEPF_ROWEND)));
}
end_run = ME_MakeRun(style,ME_MakeString(wszParagraphSign), run_flags);
assert(run->type == diRun);
end_run->member.run.nCR = numCR;
end_run->member.run.nLF = numLF;
run_para = ME_GetParagraph(run);
assert(run_para->member.para.pFmt->cbSize == sizeof(PARAFORMAT2));
ofs = end_run->member.run.nCharOfs = run->member.run.nCharOfs;
next_para = run_para->member.para.next_para;
assert(next_para == ME_FindItemFwd(run_para, diParagraphOrEnd));
undo = ME_AddUndoItem(editor, diUndoJoinParagraphs, NULL);
if (undo)
undo->nStart = run_para->member.para.nCharOfs + ofs;
/* the new paragraph will have a different starting offset, so let's update its runs */
pp = run;
while(pp->type == diRun) {
pp->member.run.nCharOfs -= ofs;
pp = ME_FindItemFwd(pp, diRunOrParagraphOrEnd);
}
new_para->member.para.nCharOfs = ME_GetParagraph(run)->member.para.nCharOfs+ofs;
new_para->member.para.nCharOfs += end_len;
new_para->member.para.nFlags = MEPF_REWRAP;
/* FIXME initialize format style and call ME_SetParaFormat blah blah */
*new_para->member.para.pFmt = *run_para->member.para.pFmt;
new_para->member.para.border = run_para->member.para.border;
/* insert paragraph into paragraph double linked list */
new_para->member.para.prev_para = run_para;
new_para->member.para.next_para = next_para;
run_para->member.para.next_para = new_para;
next_para->member.para.prev_para = new_para;
/* insert end run of the old paragraph, and new paragraph, into DI double linked list */
ME_InsertBefore(run, new_para);
ME_InsertBefore(new_para, end_run);
if (!editor->bEmulateVersion10) { /* v4.1 */
if (paraFlags & (MEPF_ROWSTART|MEPF_CELL))
{
ME_DisplayItem *cell = ME_MakeDI(diCell);
ME_InsertBefore(new_para, cell);
new_para->member.para.pCell = cell;
cell->member.cell.next_cell = NULL;
if (paraFlags & MEPF_ROWSTART)
{
run_para->member.para.nFlags |= MEPF_ROWSTART;
cell->member.cell.prev_cell = NULL;
cell->member.cell.parent_cell = run_para->member.para.pCell;
if (run_para->member.para.pCell)
cell->member.cell.nNestingLevel = run_para->member.para.pCell->member.cell.nNestingLevel + 1;
else
cell->member.cell.nNestingLevel = 1;
} else {
cell->member.cell.prev_cell = run_para->member.para.pCell;
assert(cell->member.cell.prev_cell);
cell->member.cell.prev_cell->member.cell.next_cell = cell;
assert(run_para->member.para.nFlags & MEPF_CELL);
assert(!(run_para->member.para.nFlags & MEPF_ROWSTART));
cell->member.cell.nNestingLevel = cell->member.cell.prev_cell->member.cell.nNestingLevel;
cell->member.cell.parent_cell = cell->member.cell.prev_cell->member.cell.parent_cell;
}
} else if (paraFlags & MEPF_ROWEND) {
run_para->member.para.nFlags |= MEPF_ROWEND;
run_para->member.para.pCell = run_para->member.para.pCell->member.cell.parent_cell;
new_para->member.para.pCell = run_para->member.para.pCell;
assert(run_para->member.para.prev_para->member.para.nFlags & MEPF_CELL);
assert(!(run_para->member.para.prev_para->member.para.nFlags & MEPF_ROWSTART));
if (new_para->member.para.pCell != new_para->member.para.next_para->member.para.pCell
&& new_para->member.para.next_para->member.para.pCell
&& !new_para->member.para.next_para->member.para.pCell->member.cell.prev_cell)
{
/* Row starts just after the row that was ended. */
new_para->member.para.nFlags |= MEPF_ROWSTART;
}
} else {
new_para->member.para.pCell = run_para->member.para.pCell;
}
ME_UpdateTableFlags(run_para);
ME_UpdateTableFlags(new_para);
}
/* force rewrap of the */
run_para->member.para.prev_para->member.para.nFlags |= MEPF_REWRAP;
new_para->member.para.prev_para->member.para.nFlags |= MEPF_REWRAP;
/* we've added the end run, so we need to modify nCharOfs in the next paragraphs */
ME_PropagateCharOffset(next_para, end_len);
editor->nParagraphs++;
return new_para;
}
