listview_setsel.c

MCB2300_ucgui_LCD320240.rar LPC2368的uc/gui的移植

/*
*********************************************************************************************************
*   											 uC/GUI
*   					 Universal graphic software for embedded applications
*
*   					(c) Copyright 2002, Micrium Inc., Weston, FL
*   					(c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
*
*   		   礐/GUI is protected by international copyright laws. Knowledge of the
*   		   source code may not be used to write a similar product. This file may
*   		   only be used in accordance with a license and should not be redistributed
*   		   in any way. We appreciate your understanding and fairness.
*
----------------------------------------------------------------------
File		: LISTVIEW_SetSel.c
Purpose 	: Implementation of LISTVIEW_SetSel
---------------------------END-OF-HEADER------------------------------
*/

#include "LISTVIEW_Private.h"

#if GUI_WINSUPPORT

/*********************************************************************
*
*   	Public routines
*
**********************************************************************
*/
/*********************************************************************
*
*   	LISTVIEW_SetSel
*/
void LISTVIEW_SetSel(LISTVIEW_Handle hObj, int NewSel)
{
	if (hObj)
	{
		LISTVIEW_Obj* pObj;
		int MaxSel;
		WM_LOCK();
		pObj = LISTVIEW_H2P(hObj);
		MaxSel = GUI_ARRAY_GetNumItems(&pObj->RowArray) - 1;
		if (NewSel > MaxSel)
		{
			NewSel = MaxSel;
		}
		if (NewSel < 0)
		{
			NewSel = -1;
		}
		if (NewSel != pObj->Sel)
		{
			int OldSel;
			OldSel = pObj->Sel;
			pObj->Sel = NewSel;
			if (LISTVIEW__UpdateScrollPos(hObj, pObj))
			{
				LISTVIEW__InvalidateInsideArea(hObj, pObj);
			}
			else
			{
				LISTVIEW__InvalidateRow(hObj, pObj, OldSel);
				LISTVIEW__InvalidateRow(hObj, pObj, NewSel);
			}
			WM_NotifyParent(hObj, WM_NOTIFICATION_SEL_CHANGED);
		}
		WM_UNLOCK();
	}
}

#else   						 /* Avoid problems with empty object modules */
void LISTVIEW_SetSel_C(void);
void LISTVIEW_SetSel_C(void)
{
}
#endif