uicontrol.c

嵌入工linux开发的源码

/*********************************************************************/
//para: control handle
//dest: judge the control's active status
//return:
//NOT ACTIVE: 	FALSE
//ACTIVE:       TRUE
/*********************************************************************/
DLL_EXP(BOOL) guiControl_QueryIsActive(HNDL handle) 
{
	TGuiControl *pControl;

	if(handle == NULL)
		return FALSE;

	guiEnterWCS();
	pControl=(TGuiControl *)handle;
	if(pControl->checkFlag != GUI_CONTROL_CHECK_FLAG)
	{
		guiExitWCS();
		return FALSE;
	}

	if(pControl->status & CONTROL_NOT_ACTIVE)
	{
		guiExitWCS();
		return FALSE;
	}
	else
	{
		guiExitWCS();
		return TRUE;
	}
}

/*********************************************************************/
//para: control handle
//dest: judge the control visible status
//return:
//NOT VISIBLE: 	FALSE
//VISIBLE:      TRUE   
/*********************************************************************/
DLL_EXP(BOOL) guiControl_QueryIsVisible(HNDL handle) 
{
	TGuiControl *pControl;

	if(handle == NULL)
		return FALSE;

	guiEnterWCS();
	pControl=(TGuiControl *)handle;
	if(pControl->checkFlag != GUI_CONTROL_CHECK_FLAG)
	{
		guiExitWCS();
		return FALSE;
	}

	if(pControl->status & CONTROL_NOT_VISIBLE)
	{
		guiExitWCS();
		return FALSE;
	}
	else
	{
		guiExitWCS();
		return TRUE;
	}
}

/*********************************************************************/
//para: control handle and coordinate's pointer
//dest: get the control's corrdinate
//return:
//fail: 	STATUS_ERR
//sucess:   STATUS_OK
/*********************************************************************/
DLL_EXP(STATUS) guiControl_QueryLocation(HNDL handle, short *left, short *top, short *right, short *bottom)  
{
	TGuiControl *pControl;

	if(handle == NULL)
		return STATUS_ERR;

	guiEnterWCS();
	pControl=(TGuiControl *)handle;
	if(pControl->checkFlag != GUI_CONTROL_CHECK_FLAG)
	{
		guiExitWCS();
		return STATUS_ERR;
	}

	*left = pControl->left;
	*right = pControl->right;
	*top = pControl->top;
	*bottom = pControl->bottom;
	guiExitWCS();
	return STATUS_OK;
}

/*********************************************************************/
//para: control handle
//dest: judge the control whether in a vport or not
//return:
//not in vport: 	NULL
//in vport:         control handle
/*********************************************************************/
DLL_EXP(HNDL) guiControl_IsInVport(HNDL handle)         
{
	TGuiControl *pControl;

	if(handle == NULL)
		return NULL;

	guiEnterWCS();
	pControl=(TGuiControl *)handle;
	if(pControl->checkFlag != GUI_CONTROL_CHECK_FLAG)
	{
		guiExitWCS();
		return NULL;
	}

	guiExitWCS();
	return pControl->vportHandle;
}

/*********************************************************************/
//para: control handle and coordinate
//dest: set the control coordinate and show it
//return:
//fail: 	STATUS_ERR
//sucess:   STATUS_OK
/*********************************************************************/
DLL_EXP(STATUS) guiControl_SetLocation(HNDL handle,short left,short top, short right, short bottom) 
{
	TGuiControl *pControl;

	if(handle == NULL)
		return STATUS_ERR;

	guiEnterWCS();
	pControl=(TGuiControl *)handle;
	if(pControl->checkFlag != GUI_CONTROL_CHECK_FLAG)
	{
		guiExitWCS();
		return STATUS_ERR;
	}

	pControl->left=left;
	pControl->top=top;
	pControl->right=right;
	pControl->bottom=bottom;
	guiControl_Show(handle);
	guiExitWCS();
	return STATUS_OK;
}

/*********************************************************************/
//para: control handle
//dest: clear the control region
//return:
//fail: 	STATUS_ERR
//sucess:   STATUS_OK
/*********************************************************************/
DLL_EXP(STATUS) guiControl_Clear(HNDL handle)
{
	HNDL   Container;
	TGuiControl *pControl;

	if(handle == NULL)
		return STATUS_ERR;

	guiEnterWCS();
	pControl=(TGuiControl *)handle;
	if(pControl->checkFlag != GUI_CONTROL_CHECK_FLAG)
	{
		guiExitWCS();
		return STATUS_ERR;
	}

	if( guiControl_IsVisible(handle) == FALSE )
	{
		guiExitWCS();
		return STATUS_ERR;
	}

	Container=(pControl->container == NULL)?pControl->vportHandle:pControl->container;
	guiClearBlock(Container,pControl->left,pControl->top,pControl->right,pControl->bottom,GUI_WHITE,0);   //NOTE
	guiExitWCS();
	return STATUS_OK;
}

/*********************************************************************/
//para: window handle and control handle
//dest: remove the control from window's control list
//return:
//fail: 	STATUS_ERR
//sucess:   STATUS_OK
/*********************************************************************/
DLL_EXP(STATUS) guiControl_Remove(HNDL hWin, HNDL hControl) 
{
	TGuiWindow  *pWindow;
	TGuiControl *pControl;
	STATUS result;
	
	if(hWin == NULL || hControl == NULL)
		return STATUS_ERR;

	guiEnterWCS();
	pWindow=(TWindow*)(hWin);
	pControl=(TGuiControl *)hControl;
	if( pWindow->checkFlag  != GUI_WIN_CHECK_FLAG ||
		pControl->checkFlag != GUI_CONTROL_CHECK_FLAG)
	{
		guiExitWCS();
		return STATUS_ERR;
	}

	result=guiRemoveControl(&(pWindow->controlList), hControl);
	
	if(result == STATUS_OK)
		pControl->container=NULL;
	guiExitWCS();
	return result;
}

/*********************************************************************/
//para: window handle and control handle
//dest: add the control to window control list
//return:
//fail: 	STATUS_ERR
//sucess:   STATUS_OK
/*********************************************************************/
DLL_EXP(STATUS) guiControl_Add(HNDL hWin,HNDL handle)
{
	TGuiWindow  *pWindow;
	TGuiControl *pControl;
	
	if(hWin == NULL || handle == NULL)
		return STATUS_ERR;

	guiEnterWCS();
	pWindow=(TGuiWindow*)hWin;
	pControl=(TGuiControl *)handle;

	if( pWindow->checkFlag  != GUI_WIN_CHECK_FLAG ||
		pControl->checkFlag != GUI_CONTROL_CHECK_FLAG )  
	{
		guiExitWCS();
		return STATUS_ERR;
	}

    if(pControl->container != NULL)
		guiControl_Remove(pControl->container,handle);
	else if(pControl->vportHandle != NULL)
		guiViewport_RemoveControl(pControl->vportHandle, handle);

	insertTo(&(pWindow->controlList),(void *)handle);
	pControl->container=(HNDL)hWin;
	guiExitWCS();
	return STATUS_OK;
}

/*********************************************************************/
//para: control handle
//dest: show the control
//return:
//fail: 	STATUS_ERR
//sucess:   STATUS_OK
/*********************************************************************/
DLL_EXP(STATUS) guiControl_Show(HNDL handle) 
{
	TGuiControl *pControl;

	if(handle == NULL)
		return STATUS_ERR;

	guiEnterWCS();
	pControl=(TGuiControl *)handle;
	if(pControl->checkFlag != GUI_CONTROL_CHECK_FLAG)
	{
		guiExitWCS();
		return STATUS_ERR;
	}

	if(pControl->status & CONTROL_NOT_VISIBLE)
	{
		guiExitWCS();
		return STATUS_ERR;
	}

	pControl->showFun(handle);
	guiExitWCS();
	return STATUS_OK;
}

/*********************************************************************/
//para: control handle
//dest: release the control's all resource
//return:
//fail: 	STATUS_ERR
//sucess:   STATUS_OK
/*********************************************************************/
DLL_EXP(STATUS) guiControl_Delete(HNDL handle) 
{
	TGuiControl *pControl;
	STATUS result;

	if(handle == NULL)
		return STATUS_ERR;

	guiEnterWCS();
	pControl=(TGuiControl *)handle;
	if(pControl->checkFlag != GUI_CONTROL_CHECK_FLAG)
	{
		guiExitWCS();
		return STATUS_ERR;
	}

	if(pControl->container != NULL)
		guiControl_Remove(pControl->container,handle);
	else if(pControl->vportHandle != NULL)
		guiViewport_RemoveControl(pControl->vportHandle,handle);  //NOTE

	result=pControl->delFun(handle);
	guiExitWCS();
	return result;
}

/*********************************************************************/
//para: control handle
//dest: judge the control whether visible or not in a visual region
//return:
//not in a visual region: 	FALSE
//in a visual region:       TRUE
/*********************************************************************/
DLL_EXP(BOOL) guiControl_IsVisible(HNDL handle) 
{
	TGuiControl    *pControl;
	TGuiViewport   *pViewport;
	TGuiWindow     *pWindow;

	int    height,width;

	if(handle == NULL)
		return FALSE;

	guiEnterWCS();
	pControl=(TGuiControl *)handle;

	if(pControl->checkFlag != GUI_CONTROL_CHECK_FLAG)
	{
		guiExitWCS();
		return FALSE;
	}

	if(pControl->status & CONTROL_NOT_VISIBLE)
	{
		guiExitWCS();
		return FALSE;
	}

	if(pControl->vportHandle != NULL)
	{
		pViewport = (TGuiViewport *)pControl->vportHandle;
		if(pViewport->base.container != (HNDL)gpTopWindow)
		{
			guiExitWCS();
			return FALSE;
		}
		
		width = pViewport->base.right-pViewport->base.left;
		height = pViewport->base.bottom-pViewport->base.top;

		if( pControl->left > pViewport->iCurrentLeft+width ||
			pControl->right < pViewport->iCurrentLeft 	   ||
			pControl->top > pViewport->iCurrentTop+height  ||
			pControl->bottom < pViewport->iCurrentTop ) 
		{
			guiExitWCS();
			return FALSE;
		}
		else
		{
			guiExitWCS();
			return TRUE;
		}
	}

    else if(pControl->container !=NULL)
	{
		if(pControl->container != (HNDL)gpTopWindow)
		{
			guiExitWCS();
			return FALSE;
		}
		pWindow = (TGuiWindow *)pControl->container;

		width = pWindow->right-pWindow->left;
		height = pWindow->bottom-pWindow->top;
		if( pControl->left < 0 || pControl->left > width ||
			pControl->top  < 0 || pControl->top > height )
		{
			guiExitWCS();
			return FALSE;
		}
		else
		{
			guiExitWCS();
			return TRUE;
		}
	}
	else
	{
		guiExitWCS();
		return FALSE;
	}
}