71 lines
2.3 KiB
C
71 lines
2.3 KiB
C
/*
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*********************************************************************************************************
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* uC/GUI
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* Universal graphic software for embedded applications
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*
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* (c) Copyright 2002, Micrium Inc., Weston, FL
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* (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
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*
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* µC/GUI is protected by international copyright laws. Knowledge of the
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* source code may not be used to write a similar product. This file may
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* only be used in accordance with a license and should not be redistributed
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* in any way. We appreciate your understanding and fairness.
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*
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----------------------------------------------------------------------
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File : LISTBOX_DeleteItem.c
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Purpose : Implementation of LISTBOX_DeleteItem
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---------------------------END-OF-HEADER------------------------------
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*/
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#include <string.h>
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#include "LISTBOX_Private.h"
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#if GUI_WINSUPPORT
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/*********************************************************************
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*
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* Public routines
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*
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**********************************************************************
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*/
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/*********************************************************************
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*
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* LISTBOX_DeleteItem
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*/
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void LISTBOX_DeleteItem(LISTBOX_Handle hObj, unsigned int Index) {
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if (hObj) {
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int Sel;
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LISTBOX_Obj* pObj;
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unsigned int NumItems;
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WM_LOCK();
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pObj = LISTBOX_H2P(hObj);
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NumItems = LISTBOX__GetNumItems(pObj);
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if (Index < NumItems) {
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GUI_ARRAY_DeleteItem(&pObj->ItemArray, Index);
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/*
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* Update selection
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*/
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Sel = pObj->Sel;
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if (Sel >= 0) { /* Valid selction ? */
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if ((int)Index == Sel) { /* Deleting selected item ? */
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pObj->Sel = -1; /* Invalidate selection */
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} else if ((int)Index < Sel) { /* Deleting item above selection ? */
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pObj->Sel--;
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}
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}
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if (LISTBOX_UpdateScrollers(hObj)) {
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LISTBOX__InvalidateInsideArea(hObj);
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} else {
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LISTBOX__InvalidateItemAndBelow(hObj, pObj, Index);
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}
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}
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WM_UNLOCK();
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}
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}
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#else /* Avoid problems with empty object modules */
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void LISTBOX_DeleteString_C(void) {}
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#endif
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