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riched20: Enable and show the scrollbar before updating its position and range. 

Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Huw Davies 2021-03-22 08:55:52 +00:00 committed by Alexandre Julliard
parent 6f39731544
commit b406377da2
1 changed files with 20 additions and 18 deletions
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38
dlls/riched20/paint.c
View File

@ -1033,6 +1033,14 @@ static void draw_paragraph( ME_Context *c, ME_Paragraph *para )
SetTextAlign( c->hDC, align );
}
static void enable_show_scrollbar( ME_TextEditor *editor, INT bar, BOOL enable )
{
if (enable || editor->scrollbars & ES_DISABLENOSCROLL)
ITextHost_TxEnableScrollBar( editor->texthost, bar, enable ? 0 : ESB_DISABLE_BOTH );
if (!(editor->scrollbars & ES_DISABLENOSCROLL))
ITextHost_TxShowScrollBar( editor->texthost, bar, enable );
}
static void set_scroll_range_pos( ITextHost *host, INT bar, SCROLLINFO *info, BOOL set_range )
{
LONG max_pos = info->nMax, pos = info->nPos;
@ -1145,6 +1153,12 @@ void ME_UpdateScrollBar(ME_TextEditor *editor)
return;
}
if (editor->scrollbars & WS_HSCROLL && !enable ^ !editor->horz_sb_enabled)
{
editor->horz_sb_enabled = enable;
enable_show_scrollbar( editor, SB_HORZ, enable );
}
if (editor->horz_si.nMax != editor->nTotalWidth || editor->horz_si.nPage != editor->sizeWindow.cx)
{
editor->horz_si.nMax = editor->nTotalWidth;
@ -1154,15 +1168,6 @@ void ME_UpdateScrollBar(ME_TextEditor *editor)
set_scroll_range_pos( editor->texthost, SB_HORZ, &editor->horz_si, TRUE );
}
if (editor->scrollbars & WS_HSCROLL && !enable ^ !editor->horz_sb_enabled)
{
if (enable || editor->scrollbars & ES_DISABLENOSCROLL)
ITextHost_TxEnableScrollBar( editor->texthost, SB_HORZ, enable ? 0 : ESB_DISABLE_BOTH );
if (!(editor->scrollbars & ES_DISABLENOSCROLL))
ITextHost_TxShowScrollBar( editor->texthost, SB_HORZ, enable );
editor->horz_sb_enabled = enable;
}
/* Update vertical scrollbar */
enable = editor->nTotalLength > editor->sizeWindow.cy && (editor->props & TXTBIT_MULTILINE);
@ -1173,6 +1178,12 @@ void ME_UpdateScrollBar(ME_TextEditor *editor)
return;
}
if (editor->scrollbars & WS_VSCROLL && !enable ^ !editor->vert_sb_enabled)
{
editor->vert_sb_enabled = enable;
enable_show_scrollbar( editor, SB_VERT, enable );
}
if (editor->vert_si.nMax != editor->nTotalLength || editor->vert_si.nPage != editor->sizeWindow.cy)
{
editor->vert_si.nMax = editor->nTotalLength;
@ -1181,15 +1192,6 @@ void ME_UpdateScrollBar(ME_TextEditor *editor)
if ((enable || editor->vert_sb_enabled) && editor->scrollbars & WS_VSCROLL)
set_scroll_range_pos( editor->texthost, SB_VERT, &editor->vert_si, TRUE );
}
if (editor->scrollbars & WS_VSCROLL && !enable ^ !editor->vert_sb_enabled)
{
if (enable || editor->scrollbars & ES_DISABLENOSCROLL)
ITextHost_TxEnableScrollBar( editor->texthost, SB_VERT, enable ? 0 : ESB_DISABLE_BOTH );
if (!(editor->scrollbars & ES_DISABLENOSCROLL))
ITextHost_TxShowScrollBar( editor->texthost, SB_VERT, enable );
editor->vert_sb_enabled = enable;
}
}
void editor_ensure_visible( ME_TextEditor *editor, ME_Cursor *cursor )