D:/opendownloadmanager/ODM-1.x/TreeCtrlEx.cpp Source File

00001 /*
00002   Free Download Manager Copyright (c) 2003-2007 FreeDownloadManager.ORG
00003   Open Download Manager Copyright (c) 2008-2010 OpenDownloadManager.ORG
00004 */      
00005 
00006 #include "stdafx.h"
00007 #include "FdmApp.h"
00008 #include "TreeCtrlEx.h"
00009 
00010 #ifdef _DEBUG
00011 #define new DEBUG_NEW
00012 #undef THIS_FILE
00013 static char THIS_FILE[] = __FILE__;
00014 #endif      
00015 
00016 CTreeCtrlEx::CTreeCtrlEx()
00017 {
00018 }
00019 
00020 CTreeCtrlEx::~CTreeCtrlEx()
00021 {
00022 }  
00023 
00024 BEGIN_MESSAGE_MAP(CTreeCtrlEx, CTreeCtrl)
00025         //{{AFX_MSG_MAP(CTreeCtrlEx)
00026         ON_WM_LBUTTONDOWN()
00027         //}}AFX_MSG_MAP
00028 END_MESSAGE_MAP()      
00029 
00030 void CTreeCtrlEx::OnLButtonDown(UINT nFlags, CPoint point) 
00031 {
00032         UINT uFlags;
00033         HTREEITEM hItem = HitTest (point, &uFlags);
00034 
00035         if (hItem && uFlags == TVHT_ONITEMSTATEICON)
00036         {
00037                 BOOL bChecked = IsChecked (hItem);
00038                 SetCheck (hItem, !bChecked);
00039                 return;
00040         }
00041         
00042         CTreeCtrl::OnLButtonDown(nFlags, point);
00043 }
00044 
00045 void CTreeCtrlEx::SetCheck(HTREEITEM hItem, BOOL bCheck)
00046 {
00047         SetItemState (hItem, INDEXTOSTATEIMAGEMASK ((bCheck ? 2 : 1)), TVIS_STATEIMAGEMASK);
00048 }
00049 
00050 BOOL CTreeCtrlEx::IsChecked(HTREEITEM hItem)
00051 {
00052         return GetItemState (hItem, TVIS_STATEIMAGEMASK) >> 12 == 2;
00053 }