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riched20: Use para and row ptrs in the EM_GETFIRSTVISIBLELINE handler.

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Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Huw Davies 2020-11-02 08:23:16 +00:00 committed by Alexandre Julliard
parent 8046b5bc96
commit c5b1378756
1 changed files with 15 additions and 16 deletions
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31
dlls/riched20/editor.c
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@ -4044,25 +4044,24 @@ LRESULT ME_HandleMessage(ME_TextEditor *editor, UINT msg, WPARAM wParam,
return ((PARAFORMAT2 *)lParam)->dwMask;
case EM_GETFIRSTVISIBLELINE:
{
ME_DisplayItem *p = editor->pBuffer->pFirst;
ME_Paragraph *para = editor_first_para( editor );
ME_Row *row;
int y = editor->vert_si.nPos;
int ypara = 0;
int count = 0;
int ystart, yend;
while(p) {
p = ME_FindItemFwd(p, diStartRowOrParagraphOrEnd);
if (p->type == diTextEnd)
break;
if (p->type == diParagraph) {
ypara = p->member.para.pt.y;
continue;
}
ystart = ypara + p->member.row.pt.y;
yend = ystart + p->member.row.nHeight;
if (y < yend) {
break;
}
while (para_next( para ))
{
if (y < para->pt.y + para->nHeight) break;
count += para->nRows;
para = para_next( para );
}
row = para_first_row( para );
while (row)
{
if (y < para->pt.y + row->pt.y + row->nHeight) break;
count++;
row = row_next( row );
}
return count;
}