wm_bringtotop.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		: WM_BringToTop.c
Purpose 	: Windows manager routine
----------------------------------------------------------------------
*/

#include "WM_Intern.h"

#if GUI_WINSUPPORT    /* If 0, WM will not generate any code */

/*********************************************************************
*
*   	  Data types
*
**********************************************************************
*/

typedef struct
{
	GUI_RECT	Rect;
} VCDATA;

/*********************************************************************
*
*   	  Static code
*
**********************************************************************
*/

/*********************************************************************
*
*   	_cbInvalidateOne
*/
static void _cbInvalidateOne(WM_HWIN hWin, void *p)
{
	GUI_USE_PARA(p);
	WM_InvalidateWindow(hWin);
}

/*********************************************************************
*
*   	_InvalidateWindowAndDescs
*/
static void _InvalidateWindowAndDescs(WM_HWIN hWin)
{
	WM_InvalidateWindow(hWin);
	WM_ForEachDesc(hWin, _cbInvalidateOne, 0);
}

/*********************************************************************
*
*   	_BringToTop
*/
static void _BringToTop(WM_HWIN hWin)
{
	WM_HWIN hNext, hParent;
	WM_Obj * pWin, *pNext;
	if (hWin)
	{
		pWin = WM_H2P(hWin);
		hNext = pWin->hNext;
		/* Is window alread on top ? If so, we are done. (Not required, just an optimization) */
		if (hNext == 0)
		{
			return;
		}
		/* For non-top windows, it is good enough if the next one is a stay-on-top-window (Not required, just an optimization) */
		if ((pWin->Status & WM_SF_STAYONTOP) == 0)
		{
			pNext = WM_H2P(hNext);
			if (pNext->Status & WM_SF_STAYONTOP)
			{
				return;
			}
		}
		hParent = pWin->hParent;
		WM__RemoveWindowFromList(hWin);
		WM__InsertWindowIntoList(hWin, hParent);
		_InvalidateWindowAndDescs(hWin);
	}
}

/*********************************************************************
*
*   	  Public code
*
**********************************************************************
*/
/*********************************************************************
*
*   	WM_BringToTop
*/
void WM_BringToTop(WM_HWIN hWin)
{
	WM_LOCK();
	_BringToTop(hWin);
	WM_UNLOCK();
}

#else
void WM_BringToTop_c(void)
{
} /* avoid empty object files */
#endif   /* GUI_WINSUPPORT */


/*************************** End of file ****************************/