wm_resizewindow.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_ResizeWindow.C
Purpose 	: Windows manager, add. module
----------------------------------------------------------------------
*/

#include <stddef.h>
#include "WM_Intern.h"

#if GUI_WINSUPPORT    /* If 0, WM will not generate any code */
#include "GUIDebug.h"
#define WM_DEBUG_LEVEL 1

/*********************************************************************
*
*   	Public code
*
**********************************************************************
*/
/*********************************************************************
*
*   	WM_ResizeWindow
*/
void WM_ResizeWindow(WM_HWIN hWin, int dx, int dy)
{
	GUI_RECT rOld, rNew, rMerge;
	WM_Obj* pWin;
	if (((dx | dy) == 0) || (hWin == 0))
	{
		/* Early out if there is nothing to do */
		return;
	}
	WM_LOCK();
	pWin = WM_HANDLE2PTR(hWin);
	rOld = pWin->Rect;
	rNew = rOld;
	if (dx)
	{
		if ((pWin->Status & WM_SF_ANCHOR_RIGHT) && (!(pWin->Status & WM_SF_ANCHOR_LEFT)))
		{
			rNew.x0 -= dx;
		}
		else
		{
			rNew.x1 += dx;
		}
	}
	if (dy)
	{
		if ((pWin->Status & WM_SF_ANCHOR_BOTTOM) && (!(pWin->Status & WM_SF_ANCHOR_TOP)))
		{
			rNew.y0 -= dy;
		}
		else
		{
			rNew.y1 += dy;
		}
	}
	GUI_MergeRect(&rMerge, &rOld, &rNew);
	pWin->Rect = rNew;
	WM_InvalidateArea(&rMerge);
	WM__UpdateChildPositions(pWin, rNew.x0 - rOld.x0, rNew.y0 - rOld.y0, rNew.x1 - rOld.x1, rNew.y1 - rOld.y1);
	GUI__IntersectRect(&pWin->InvalidRect, &pWin->Rect); /* Make sure invalid area is not bigger than window itself */
	WM__SendMsgNoData(hWin, WM_SIZE);   				 /* Send size message to the window */
	WM_UNLOCK();
}

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

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