140 lines
4.0 KiB
C
140 lines
4.0 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_MultiSel.c
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Purpose : Implementation of listbox widget
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---------------------------END-OF-HEADER------------------------------
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*/
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#include <stdlib.h>
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#include "GUI_ARRAY.h"
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#include "LISTBOX_Private.h"
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#include "GUIDebug.h"
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#include "GUI_Protected.h"
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#include "WM_Intern.h"
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#if GUI_WINSUPPORT
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/*********************************************************************
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*
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* Exported routines: Various methods
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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_SetMulti
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*/
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void LISTBOX_SetMulti(LISTBOX_Handle hObj, int Mode) {
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if (hObj) {
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LISTBOX_Obj* pObj;
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WM_LOCK();
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pObj = LISTBOX_H2P(hObj);
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if (Mode) {
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if (!(pObj->Flags & LISTBOX_SF_MULTISEL)) {
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pObj->Flags |= LISTBOX_SF_MULTISEL;
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LISTBOX__InvalidateInsideArea(hObj);
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}
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} else {
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if (pObj->Flags & LISTBOX_SF_MULTISEL) {
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pObj->Flags &= ~LISTBOX_SF_MULTISEL;
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LISTBOX__InvalidateInsideArea(hObj);
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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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/*********************************************************************
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*
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* LISTBOX_GetMulti
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*/
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int LISTBOX_GetMulti(LISTBOX_Handle hObj) {
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int Multi = 0;
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if (hObj) {
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LISTBOX_Obj* pObj;
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WM_LOCK();
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pObj = LISTBOX_H2P(hObj);
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if (!(pObj->Flags & LISTBOX_SF_MULTISEL)) {
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Multi = 0;
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} else {
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Multi = 1;
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}
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WM_UNLOCK();
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}
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return Multi;
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}
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/*********************************************************************
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*
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* LISTBOX_GetItemSel
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*/
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int LISTBOX_GetItemSel(LISTBOX_Handle hObj, unsigned Index) {
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int Ret = 0;
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if (hObj) {
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unsigned NumItems;
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LISTBOX_Obj* pObj;
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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) && (pObj->Flags & LISTBOX_SF_MULTISEL)) {
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WM_HMEM hItem = GUI_ARRAY_GethItem(&pObj->ItemArray, Index);
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if (hItem) {
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LISTBOX_ITEM * pItem = (LISTBOX_ITEM *)GUI_ALLOC_h2p(hItem);
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if (pItem->Status & LISTBOX_ITEM_SELECTED) {
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Ret = 1;
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}
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}
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}
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WM_UNLOCK();
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}
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return Ret;
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}
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/*********************************************************************
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*
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* LISTBOX_SetItemSel
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*/
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void LISTBOX_SetItemSel(LISTBOX_Handle hObj, unsigned Index, int OnOff) {
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if (hObj) {
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unsigned NumItems;
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LISTBOX_Obj* pObj;
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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) && (pObj->Flags & LISTBOX_SF_MULTISEL)) {
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WM_HMEM hItem = GUI_ARRAY_GethItem(&pObj->ItemArray, Index);
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if (hItem) {
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LISTBOX_ITEM * pItem = (LISTBOX_ITEM *)GUI_ALLOC_h2p(hItem);
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if (OnOff) {
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if (!(pItem->Status & LISTBOX_ITEM_SELECTED)) {
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pItem->Status |= LISTBOX_ITEM_SELECTED;
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LISTBOX__InvalidateItem(hObj, pObj, Index);
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}
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} else {
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if (pItem->Status & LISTBOX_ITEM_SELECTED) {
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pItem->Status &= ~LISTBOX_ITEM_SELECTED;
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LISTBOX__InvalidateItem(hObj, pObj, Index);
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}
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}
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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_MultiSel_C(void) {}
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#endif
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