listedit_setsel.c

在uc_GUI中增加的列表编辑框list_edit源代码

/*
*********************************************************************************************************
*                                                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        : LISTEDIT_SetSel.c
Purpose     : Implementation of LISTEDIT_SetSel
---------------------------END-OF-HEADER------------------------------
*/

#include "LISTEDIT_Private.h"
#include "string.h"

#if GUI_WINSUPPORT

/*********************************************************************
*
*       Public routines
*
**********************************************************************
*/
/*********************************************************************
*
*       LISTEDIT_SetRowSel
*/
void LISTEDIT_SetRowSel(LISTEDIT_Handle hObj, int NewSel) {
  if (hObj) {
    LISTEDIT_Obj* pObj;
    int MaxSel;
    WM_LOCK();
    pObj = LISTEDIT_H2P(hObj);
    MaxSel = GUI_ARRAY_GetNumItems(&pObj->RowArray) - 1;
    if (NewSel > MaxSel) {
      NewSel = MaxSel;
    }
    if (NewSel < 0) {
      NewSel = -1;
    }
    if (NewSel != pObj->RowSel) 
	{
      int OldSel;
	  LISTEDIT_ITEM * pItem;
	  GUI_ARRAY* pRow;       
      OldSel    = pObj->RowSel;
      pObj->RowSel = NewSel;	  
	  pRow = ( GUI_ARRAY*)GUI_ARRAY_GetpItem(&pObj->RowArray,pObj->RowSel);
	  pItem = (LISTEDIT_ITEM *)GUI_ARRAY_GetpItem(pRow, pObj->ColSel);
	  memset(pObj->CurString,0,LISTEDIT_EDIT_MAXLEN);
	  if(strlen(pItem->acText)>LISTEDIT_EDIT_MAXLEN)
		  memcpy(pObj->CurString,pItem->acText,LISTEDIT_EDIT_MAXLEN);	
	  else
		  memcpy(pObj->CurString,pItem->acText,strlen(pItem->acText));
      if (LISTEDIT__UpdateScrollPos(hObj, pObj,1)) {
        LISTEDIT__InvalidateInsideArea(hObj, pObj);
      } else {
        LISTEDIT__InvalidateRow(hObj, pObj, OldSel);
        LISTEDIT__InvalidateRow(hObj, pObj, NewSel);
      }
      WM_NotifyParent(hObj, WM_NOTIFICATION_SEL_CHANGED);
    }
    WM_UNLOCK();
  }
}
/*********************************************************************
*
*       LISTEDIT_SetColSel
*/
void LISTEDIT_SetColSel(LISTEDIT_Handle hObj, int NewSel) 
{
  if (hObj) {
    LISTEDIT_Obj* pObj;
    int MaxSel;
    WM_LOCK();
    pObj = LISTEDIT_H2P(hObj);
    //MaxSel = GUI_ARRAY_GetNumItems(&pObj->RowArray) - 1;
	MaxSel = HEADER_GetNumItems(pObj->hHeader) - 1;
    if (NewSel > MaxSel) 
	{
		if(pObj->RowSel>=(int)GUI_ARRAY_GetNumItems(&pObj->RowArray)-1)
		    NewSel = MaxSel;
		else
		{
			NewSel=0;
			LISTEDIT_IncRowSel(hObj);			
		}
    }
    if (NewSel < 0) 
    {
    	//Uart_Printf("NewCol=%d,CurRow=%d\n",NewSel,pObj->RowSel);
    	if(pObj->RowSel<=0)
	      	NewSel = 0;
	     else
	     {
	     	NewSel=MaxSel;	     	
	     	LISTEDIT_DecRowSel(hObj);
	     }
    }
    if (NewSel != pObj->ColSel) 
	{
      int OldSel;
	  LISTEDIT_ITEM * pItem;
	  GUI_ARRAY* pRow; 
      OldSel    = pObj->ColSel;
      pObj->ColSel = NewSel;
	  pRow = ( GUI_ARRAY*)GUI_ARRAY_GetpItem(&pObj->RowArray,pObj->RowSel);
	  pItem = (LISTEDIT_ITEM *)GUI_ARRAY_GetpItem(pRow, pObj->ColSel);
	  memset(pObj->CurString,0,LISTEDIT_EDIT_MAXLEN);
	  if(strlen(pItem->acText)>LISTEDIT_EDIT_MAXLEN)
		  memcpy(pObj->CurString,pItem->acText,LISTEDIT_EDIT_MAXLEN);	
	  else
		  memcpy(pObj->CurString,pItem->acText,strlen(pItem->acText));
      if (LISTEDIT__UpdateScrollPos(hObj, pObj,0))
	  {
		  int i=0,hHeaderPos=0;
		  LISTEDIT__InvalidateInsideArea(hObj, pObj);
		  for(i=0;i<pObj->ScrollStateH.v;i++)
		  {
			  hHeaderPos+=HEADER_GetItemWidth(pObj->hHeader,i);
		  }
		  HEADER_SetScrollPos(pObj->hHeader, hHeaderPos);
      }
	  else 
	  {
		LISTEDIT__InvalidateCol(hObj, pObj, OldSel);
        LISTEDIT__InvalidateCol(hObj, pObj, NewSel);
      }
      WM_NotifyParent(hObj, WM_NOTIFICATION_SEL_CHANGED);
    }
    WM_UNLOCK();
  }
}

#else                            /* Avoid problems with empty object modules */
  void LISTEDIT_SetRowSel_C(void);
  void LISTEDIT_SetRowSel_C(void) {}
  void LISTEDIT_SetColSel_C(void);
  void LISTEDIT_SetColSel_C(void) {}
#endif