window.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		: WINDOW.c
Purpose 	: Window routines
---------------------------END-OF-HEADER------------------------------
*/


#include <stdlib.h>
#include <string.h>
#include "DIALOG.h"
#if GUI_WINSUPPORT

/*********************************************************************
*
*   	Private config defaults
*
**********************************************************************
*/

#ifndef WINDOW_BKCOLOR_DEFAULT
#define WINDOW_BKCOLOR_DEFAULT 0xC0C0C0
#endif

/*********************************************************************
*
*   	Object definition
*
**********************************************************************
*/

typedef struct
{
	WIDGET			Widget;
	WM_CALLBACK		*cb;
	WM_HWIN			hFocussedChild;
	WM_DIALOG_STATUS*pDialogStatus;
} WINDOW_OBJ;

#define WINDOW_H2P(h) (WINDOW_OBJ*)WM_H2P(h)

/*********************************************************************
*
*   	Static data
*
**********************************************************************
*/

GUI_COLOR WINDOW__DefaultBkColor = WINDOW_BKCOLOR_DEFAULT;

/*********************************************************************
*
*   	Static routines
*
**********************************************************************
*/
/*********************************************************************
*
*   	_OnChildHasFocus
*/
static void _OnChildHasFocus(WM_HWIN hWin, WINDOW_OBJ *pObj, const WM_MESSAGE *pMsg)
{
	if (pMsg->Data.p)
	{
		const WM_NOTIFY_CHILD_HAS_FOCUS_INFO * pInfo = (const WM_NOTIFY_CHILD_HAS_FOCUS_INFO *) pMsg->Data.p;
		int IsDesc = WM__IsAncestorOrSelf(pInfo->hNew, hWin);
		if (!IsDesc)
		{
			/* A child has received the focus, Framewindow needs to be activated */
			/* Remember the child which had the focus so we can reactive this child */
			if (WM__IsAncestor(pInfo->hOld, hWin))
			{
				pObj->hFocussedChild = pInfo->hOld;
			}
		}
	}
}

/*********************************************************************
*
*   	_cb
*/
static void _cb(WM_MESSAGE *pMsg)
{
	WM_HWIN hObj;
	WINDOW_OBJ* pObj;
	WM_CALLBACK* cb;
	hObj = pMsg->hWin;
	pObj = WINDOW_H2P(hObj);
	cb = pObj->cb;
	switch (pMsg->MsgId)
	{
		case WM_HANDLE_DIALOG_STATUS:
			if (pMsg->Data.p)
			{
				/* set pointer to Dialog status */
				pObj->pDialogStatus = (WM_DIALOG_STATUS *) pMsg->Data.p;
			}
			else
			{
				/* return pointer to Dialog status */
				pMsg->Data.p = pObj->pDialogStatus;
			}
			return;
		case WM_SET_FOCUS:
			if (pMsg->Data.v)
			{
				/* Focus received */
				if (pObj->hFocussedChild && (pObj->hFocussedChild != hObj))
				{
					WM_SetFocus(pObj->hFocussedChild);
				}
				else
				{
					pObj->hFocussedChild = WM_SetFocusOnNextChild(hObj);
				}
				pMsg->Data.v = 0;   /* Focus change accepted */
			}
			return;
		case WM_GET_ACCEPT_FOCUS:
			WIDGET_HandleActive(hObj, pMsg);
			return;
		case WM_NOTIFY_CHILD_HAS_FOCUS:
			_OnChildHasFocus(hObj, pObj, pMsg);
			return;
		case WM_KEY:
			if (((const WM_KEY_INFO *) (pMsg->Data.p))->PressedCnt > 0)
			{
				int Key = ((const WM_KEY_INFO *) (pMsg->Data.p))->Key;
				switch (Key)
				{
					case GUI_KEY_TAB:
						pObj->hFocussedChild = WM_SetFocusOnNextChild(hObj);
						break;  				  /* Send to parent by not doing anything */
				}
			}
			break;
		case WM_PAINT:
			LCD_SetBkColor(WINDOW__DefaultBkColor);
			GUI_Clear();
			break;
		case WM_GET_BKCOLOR:
			pMsg->Data.Color = WINDOW__DefaultBkColor;
			return; 					  /* Message handled */
	}  
	if (cb)
	{
		(*cb) (pMsg);
	}
	else
	{
		WM_DefaultProc(pMsg);
	}
}

/*********************************************************************
*
*   	Exported routines
*
**********************************************************************
*/
/*********************************************************************
*
*   	WINDOW_CreateIndirect
*/
WM_HWIN WINDOW_CreateIndirect(const GUI_WIDGET_CREATE_INFO *pCreateInfo, WM_HWIN hWinParent, int x0, int y0, WM_CALLBACK *cb)
{
	WM_HWIN hObj;
	hObj = WM_CreateWindowAsChild(pCreateInfo->x0 + x0, pCreateInfo->y0 + y0, pCreateInfo->xSize, pCreateInfo->ySize, hWinParent, pCreateInfo->Flags, _cb, sizeof(WINDOW_OBJ) - sizeof(WM_Obj));
	if (hObj)
	{
		WINDOW_OBJ* pObj;
		WM_LOCK();
		pObj = WINDOW_H2P(hObj);
		WIDGET__Init(&pObj->Widget, pCreateInfo->Id, WIDGET_STATE_FOCUSSABLE);
		pObj->cb = cb;
		pObj->hFocussedChild = 0;
		WM_UNLOCK();
	}
	return hObj;
}

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