wm_setscrollbar.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_SetScrollbar.c
Purpose 	: Implementation of WM_SetScrollbarV, WM_SetScrollbarH
----------------------------------------------------------------------
*/

#include "WM_Intern.h"
#include "SCROLLBAR.h"

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


/*********************************************************************
*
*   	Static code
*
**********************************************************************
*/
/*********************************************************************
*
*   	_SetScrollbar
*
* Return value: 1 if scrollbar was visible, 0 if not
*/
static int _SetScrollbar(WM_HWIN hWin, int OnOff, int Id, int Flags)
{
	WM_HWIN hBar;
	hBar = WM_GetDialogItem(hWin, Id);
	if (OnOff)
	{
		if (!hBar)
		{
			SCROLLBAR_CreateAttached(hWin, Flags);
		}
	}
	else
	{
		WM_HideWindow(hBar);
		if (hBar)
		{
			WM_DeleteWindow(hBar);
		}
	}
	return (hBar ? 1 : 0);
}


/*********************************************************************
*
*   	Public code
*
**********************************************************************
*/
/*********************************************************************
*
*   	WM__SetScrollbarV
*
*/
int WM__SetScrollbarV(WM_HWIN hWin, int OnOff)
{
	return _SetScrollbar(hWin, OnOff, GUI_ID_VSCROLL, SCROLLBAR_CF_VERTICAL);
}

/*********************************************************************
*
*   	WM__SetScrollbarH
*
*/
int WM__SetScrollbarH(WM_HWIN hWin, int OnOff)
{
	return _SetScrollbar(hWin, OnOff, GUI_ID_HSCROLL, 0);
}

/*********************************************************************
*
*   	WM_SetScrollbarH
*
*/
int WM_SetScrollbarH(WM_HWIN hWin, int OnOff)
{
	int r;
	WM_LOCK();
	r = WM__SetScrollbarH(hWin, OnOff);
	WM_UNLOCK();
	return r;
}

/*********************************************************************
*
*   	WM_SetScrollbarV
*
*/
int WM_SetScrollbarV(WM_HWIN hWin, int OnOff)
{
	int r;
	WM_LOCK();
	r = WM__SetScrollbarV(hWin, OnOff);
	WM_UNLOCK();
	return r;
}

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

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