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comctl32/updown: Allow ranges with max < min for Up/Down control.

This commit is contained in:
Nikolay Sivov 2009-04-10 04:52:27 -04:00 committed by Alexandre Julliard
parent 8320686fb2
commit b2917cf598
1 changed files with 27 additions and 12 deletions
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39
dlls/comctl32/updown.c
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@ -469,6 +469,27 @@ static LRESULT UPDOWN_KeyPressed(UPDOWN_INFO *infoPtr, int key)
return 0;
}
/***********************************************************************
* UPDOWN_SetRange
*
* Handle UDM_SETRANGE, UDM_SETRANGE32
*
* FIXME: handle Max == Min properly:
* - arrows should be disabled (without WS_DISABLED set),
* visually they can't be pressed and don't respond;
* - all input messages should still pass in.
*/
static LRESULT UPDOWN_SetRange(UPDOWN_INFO *infoPtr, INT Max, INT Min)
{
infoPtr->MaxVal = Max;
infoPtr->MinVal = Min;
TRACE("UpDown Ctrl new range(%d to %d), hwnd=%p\n",
infoPtr->MinVal, infoPtr->MaxVal, infoPtr->Self);
return 0;
}
/***********************************************************************
* UPDOWN_MouseWheel
*
@ -1045,12 +1066,11 @@ static LRESULT WINAPI UpDownWindowProc(HWND hwnd, UINT message, WPARAM wParam, L
return MAKELONG(infoPtr->MaxVal, infoPtr->MinVal);
case UDM_SETRANGE:
/* we must have: */
infoPtr->MaxVal = (short)(lParam); /* UD_MINVAL <= Max <= UD_MAXVAL */
infoPtr->MinVal = (short)HIWORD(lParam); /* UD_MINVAL <= Min <= UD_MAXVAL */
/* |Max-Min| <= UD_MAXVAL */
TRACE("UpDown Ctrl new range(%d to %d), hwnd=%p\n",
infoPtr->MinVal, infoPtr->MaxVal, hwnd);
/* we must have:
UD_MINVAL <= Max <= UD_MAXVAL
UD_MINVAL <= Min <= UD_MAXVAL
|Max-Min| <= UD_MAXVAL */
UPDOWN_SetRange(infoPtr, (short)lParam, (short)HIWORD(lParam));
break;
case UDM_GETRANGE32:
@ -1059,12 +1079,7 @@ static LRESULT WINAPI UpDownWindowProc(HWND hwnd, UINT message, WPARAM wParam, L
break;
case UDM_SETRANGE32:
infoPtr->MinVal = (INT)wParam;
infoPtr->MaxVal = (INT)lParam;
if (infoPtr->MaxVal <= infoPtr->MinVal)
infoPtr->MaxVal = infoPtr->MinVal + 1;
TRACE("UpDown Ctrl new range(%d to %d), hwnd=%p\n",
infoPtr->MinVal, infoPtr->MaxVal, hwnd);
UPDOWN_SetRange(infoPtr, (INT)lParam, (INT)wParam);
break;
case UDM_GETPOS32: