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riched20: Use para and run ptrs in the table deletion function. 

Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Huw Davies 2020-10-29 10:49:11 +00:00 committed by Alexandre Julliard
parent 058ca3d04a
commit 20b4a03553
3 changed files with 69 additions and 80 deletions
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5
dlls/riched20/caret.c
View File

@ -306,9 +306,8 @@ BOOL ME_InternalDeleteText(ME_TextEditor *editor, ME_Cursor *start,
if (!bForce)
{
ME_ProtectPartialTableDeletion(editor, &c, &nChars);
if (nChars == 0)
return FALSE;
table_protect_partial_deletion( editor, &c, &nChars );
if (nChars == 0) return FALSE;
}
while (nChars > 0)

2
dlls/riched20/editor.h
View File

@ -302,12 +302,12 @@ ME_Paragraph *table_insert_row_end( ME_TextEditor *editor, ME_Cursor *cursor ) D
ME_Paragraph *table_insert_row_start( ME_TextEditor *editor, ME_Cursor *cursor ) DECLSPEC_HIDDEN;
ME_Paragraph *table_insert_row_start_at_para( ME_TextEditor *editor, ME_Paragraph *para ) DECLSPEC_HIDDEN;
ME_Paragraph *table_outer_para( ME_Paragraph *para ) DECLSPEC_HIDDEN;
void table_protect_partial_deletion( ME_TextEditor *editor, ME_Cursor *c, int *num_chars ) DECLSPEC_HIDDEN;
ME_Paragraph *table_row_end( ME_Paragraph *para ) DECLSPEC_HIDDEN;
ME_Cell *table_row_end_cell( ME_Paragraph *para ) DECLSPEC_HIDDEN;
ME_Cell *table_row_first_cell( ME_Paragraph *para ) DECLSPEC_HIDDEN;
ME_Paragraph *table_row_start( ME_Paragraph *para ) DECLSPEC_HIDDEN;
void ME_CheckTablesForCorruption(ME_TextEditor *editor) DECLSPEC_HIDDEN;
void ME_ProtectPartialTableDeletion(ME_TextEditor *editor, ME_Cursor *c, int *nChars) DECLSPEC_HIDDEN;
void ME_TabPressedInTable(ME_TextEditor *editor, BOOL bSelectedRow) DECLSPEC_HIDDEN;
void ME_MoveCursorFromTableRowStartParagraph(ME_TextEditor *editor) DECLSPEC_HIDDEN;
struct RTFTable *ME_MakeTableDef(ME_TextEditor *editor) DECLSPEC_HIDDEN;

144
dlls/riched20/table.c
View File

@ -315,123 +315,113 @@ BOOL ME_IsInTable(ME_DisplayItem *pItem)
}
/* Table rows should either be deleted completely or not at all. */
void ME_ProtectPartialTableDeletion(ME_TextEditor *editor, ME_Cursor *c, int *nChars)
void table_protect_partial_deletion( ME_TextEditor *editor, ME_Cursor *c, int *num_chars )
{
int nOfs = ME_GetCursorOfs(c);
int start_ofs = ME_GetCursorOfs( c );
ME_Cursor c2 = *c;
ME_DisplayItem *this_para = c->pPara;
ME_DisplayItem *end_para;
ME_Paragraph *this_para = &c->pPara->member.para, *end_para;
ME_MoveCursorChars(editor, &c2, *nChars, FALSE);
end_para = c2.pPara;
if (c2.pRun->member.run.nFlags & MERF_ENDPARA) {
ME_MoveCursorChars( editor, &c2, *num_chars, FALSE );
end_para = &c2.pPara->member.para;
if (c2.pRun->member.run.nFlags & MERF_ENDPARA)
{
/* End offset might be in the middle of the end paragraph run.
* If this is the case, then we need to use the next paragraph as the last
* paragraphs.
*/
int remaining = nOfs + *nChars - c2.pRun->member.run.nCharOfs
- end_para->member.para.nCharOfs;
int remaining = start_ofs + *num_chars - c2.pRun->member.run.nCharOfs - end_para->nCharOfs;
if (remaining)
{
assert( remaining < c2.pRun->member.run.len );
end_para = end_para->member.para.next_para;
end_para = para_next( end_para );
}
}
if (!editor->bEmulateVersion10) { /* v4.1 */
if (this_para->member.para.pCell != end_para->member.para.pCell ||
((this_para->member.para.nFlags|end_para->member.para.nFlags)
& (MEPF_ROWSTART|MEPF_ROWEND)))
if (!editor->bEmulateVersion10) /* v4.1 */
{
if (para_cell( this_para ) != para_cell( end_para ) ||
((this_para->nFlags | end_para->nFlags) & (MEPF_ROWSTART | MEPF_ROWEND)))
{
while (this_para != end_para)
{
ME_DisplayItem *next_para = this_para->member.para.next_para;
BOOL bTruancateDeletion = FALSE;
if (this_para->member.para.nFlags & MEPF_ROWSTART) {
ME_Paragraph *next_para = para_next( this_para );
BOOL truancate_del = FALSE;
if (this_para->nFlags & MEPF_ROWSTART)
{
/* The following while loop assumes that next_para is MEPF_ROWSTART,
* so moving back one paragraph let's it be processed as the start
* so moving back one paragraph lets it be processed as the start
* of the row. */
next_para = this_para;
this_para = this_para->member.para.prev_para;
} else if (next_para->member.para.pCell != this_para->member.para.pCell
|| this_para->member.para.nFlags & MEPF_ROWEND)
this_para = para_prev( this_para );
}
else if (para_cell( next_para) != para_cell( this_para ) || this_para->nFlags & MEPF_ROWEND)
{
/* Start of the deletion from after the start of the table row. */
bTruancateDeletion = TRUE;
truancate_del = TRUE;
}
while (!bTruancateDeletion &&
next_para->member.para.nFlags & MEPF_ROWSTART)
while (!truancate_del && next_para->nFlags & MEPF_ROWSTART)
{
next_para = table_row_end( &next_para->member.para )->next_para;
if (next_para->member.para.nCharOfs > nOfs + *nChars)
next_para = para_next( table_row_end( next_para ) );
if (next_para->nCharOfs > start_ofs + *num_chars)
{
/* End of deletion is not past the end of the table row. */
next_para = this_para->member.para.next_para;
next_para = para_next( this_para );
/* Delete the end paragraph preceding the table row if the
* preceding table row will be empty. */
if (this_para->member.para.nCharOfs >= nOfs)
if (this_para->nCharOfs >= start_ofs) next_para = para_next( next_para );
truancate_del = TRUE;
}
else this_para = para_prev( next_para );
}
if (truancate_del)
{
next_para = next_para->member.para.next_para;
}
bTruancateDeletion = TRUE;
} else {
this_para = next_para->member.para.prev_para;
}
}
if (bTruancateDeletion)
{
ME_Run *end_run = &ME_FindItemBack(next_para, diRun)->member.run;
int nCharsNew = (next_para->member.para.nCharOfs - nOfs
- end_run->len);
nCharsNew = max(nCharsNew, 0);
assert(nCharsNew <= *nChars);
*nChars = nCharsNew;
ME_Run *end_run = para_end_run( para_prev( next_para ) );
int new_chars = next_para->nCharOfs - start_ofs - end_run->len;
new_chars = max( new_chars, 0 );
assert( new_chars <= *num_chars);
*num_chars = new_chars;
break;
}
this_para = next_para;
}
}
} else { /* v1.0 - 3.0 */
ME_DisplayItem *pRun;
int nCharsToBoundary;
if ((this_para->member.para.nCharOfs != nOfs || this_para == end_para) &&
this_para->member.para.fmt.dwMask & PFM_TABLE &&
this_para->member.para.fmt.wEffects & PFE_TABLE)
}
else /* v1.0 - 3.0 */
{
pRun = c->pRun;
ME_Run *run;
int chars_to_boundary;
if ((this_para->nCharOfs != start_ofs || this_para == end_para) && para_in_table( this_para ))
{
run = &c->pRun->member.run;
/* Find the next tab or end paragraph to use as a delete boundary */
while (!(pRun->member.run.nFlags & (MERF_TAB|MERF_ENDPARA)))
pRun = ME_FindItemFwd(pRun, diRun);
nCharsToBoundary = pRun->member.run.nCharOfs
- c->pRun->member.run.nCharOfs
- c->nOffset;
*nChars = min(*nChars, nCharsToBoundary);
} else if (end_para->member.para.fmt.dwMask & PFM_TABLE &&
end_para->member.para.fmt.wEffects & PFE_TABLE)
while (!(run->nFlags & (MERF_TAB | MERF_ENDPARA)))
run = run_next( run );
chars_to_boundary = run->nCharOfs - c->pRun->member.run.nCharOfs - c->nOffset;
*num_chars = min( *num_chars, chars_to_boundary );
}
else if (para_in_table( end_para ))
{
/* The deletion starts from before the row, so don't join it with
* previous non-empty paragraphs. */
ME_DisplayItem *curPara;
pRun = NULL;
if (nOfs > this_para->member.para.nCharOfs) {
pRun = ME_FindItemBack(end_para, diRun);
curPara = end_para->member.para.prev_para;
}
if (!pRun) {
pRun = ME_FindItemFwd(end_para, diRun);
curPara = end_para;
}
if (pRun)
ME_Paragraph *cur_para;
run = NULL;
if (start_ofs > this_para->nCharOfs)
{
nCharsToBoundary = curPara->member.para.nCharOfs
+ pRun->member.run.nCharOfs
- nOfs;
if (nCharsToBoundary >= 0)
*nChars = min(*nChars, nCharsToBoundary);
cur_para = para_prev( end_para );
run = para_end_run( cur_para );
}
if (!run)
{
cur_para = end_para;
run = para_first_run( end_para );
}
if (run)
{
chars_to_boundary = cur_para->nCharOfs + run->nCharOfs - start_ofs;
if (chars_to_boundary >= 0) *num_chars = min( *num_chars, chars_to_boundary );
}
}
if (*nChars < 0)
*nChars = 0;
if (*num_chars < 0) *num_chars = 0;
}
}