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- Creating combobox with CBS_SIMPLE style shall set internal flag CBF_EDIT. 

- Edit text must be selected only if CB is in focus.
- If CB has edit control we have to call CBUpdateEdit to update its
  contents. Invalidating textRect will not force updating of child
  edit control, obviously.
- We have to protect ourselves from changing selection in listbox when
  we receive listbox notification. So LBN_SELCHANGE -> CBUpdateEdit ->
  EN_CHANGE will not reselect item in the lisbox.
This commit is contained in:
David Grant 2000-05-30 17:48:33 +00:00 committed by Alexandre Julliard
parent 0ce13a4873
commit 8a92213111
2 changed files with 23 additions and 6 deletions
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28
controls/combo.c
View File

@ -472,8 +472,8 @@ static LRESULT COMBO_Create( LPHEADCOMBO lphc, WND* wnd, LPARAM lParam)
LPCREATESTRUCTA lpcs = (CREATESTRUCTA*)lParam;
if( !CB_GETTYPE(lphc) ) lphc->dwStyle |= CBS_SIMPLE;
else if( CB_GETTYPE(lphc) != CBS_DROPDOWNLIST ) lphc->wState |= CBF_EDIT;
if( CB_GETTYPE(lphc) != CBS_DROPDOWNLIST ) lphc->wState |= CBF_EDIT;
lphc->self = wnd;
lphc->owner = lpcs->hwndParent;
@ -1113,6 +1113,9 @@ static void CBUpdateEdit( LPHEADCOMBO lphc , INT index )
SendMessageA( lphc->hWndEdit, WM_SETTEXT, 0, pText ? (LPARAM)pText : (LPARAM)"" );
lphc->wState &= ~CBF_NOEDITNOTIFY;
if( lphc->wState & CBF_FOCUSED )
SendMessageA( lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1) );
if( pText )
HeapFree( GetProcessHeap(), 0, pText );
}
@ -1384,7 +1387,14 @@ static LRESULT COMBO_Command( LPHEADCOMBO lphc, WPARAM wParam, HWND hWnd )
if (!(lphc->wState & CBF_NOEDITNOTIFY))
CB_NOTIFY( lphc, CBN_EDITCHANGE );
CBUpdateLBox( lphc );
if (lphc->wState & CBF_NOLBSELECT)
{
lphc->wState &= ~CBF_NOLBSELECT;
}
else
{
CBUpdateLBox( lphc );
}
break;
case (EN_UPDATE >> 8):
@ -1417,13 +1427,17 @@ static LRESULT COMBO_Command( LPHEADCOMBO lphc, WPARAM wParam, HWND hWnd )
/* do not roll up if selection is being tracked
* by arrowkeys in the dropdown listbox */
if( (lphc->wState & CBF_DROPPED) && !(lphc->wState & CBF_NOROLLUP) )
CBRollUp( lphc, (HIWORD(wParam) == LBN_SELCHANGE), TRUE );
if( (lphc->dwStyle & CBS_SIMPLE) ||
((lphc->wState & CBF_DROPPED) && !(lphc->wState & CBF_NOROLLUP)) )
{
CBRollUp( lphc, (HIWORD(wParam) == LBN_SELCHANGE), TRUE );
}
else lphc->wState &= ~CBF_NOROLLUP;
if( lphc->wState & CBF_EDIT )
{
INT index = SendMessageA(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
lphc->wState |= CBF_NOLBSELECT;
CBUpdateEdit( lphc, index );
/* select text in edit, as Windows does */
SendMessageA( lphc->hWndEdit, EM_SETSEL, 0, (LPARAM)(-1) );
@ -2055,7 +2069,9 @@ static inline LRESULT WINAPI ComboWndProc_locked( WND* pWnd, UINT message,
wParam = (INT)(INT16)wParam;
case CB_SETCURSEL:
lParam = SendMessageA( lphc->hWndLBox, LB_SETCURSEL, wParam, 0);
if( lphc->wState & CBF_SELCHANGE )
if( lParam >= 0 )
SendMessageA( lphc->hWndLBox, LB_SETTOPINDEX, wParam, 0);
if( lphc->wState & CBF_SELCHANGE )
{
/* no LBN_SELCHANGE in this case, update manually */
if( lphc->wState & CBF_EDIT )

1
include/combo.h
View File

@ -26,6 +26,7 @@ struct tagWND;
#define CBF_NOREDRAW 0x0200
#define CBF_SELCHANGE 0x0400
#define CBF_NOEDITNOTIFY 0x1000
#define CBF_NOLBSELECT 0x2000 /* do not change current selection */
#define CBF_EUI 0x8000
/* Combo state struct */