// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart and Markus Holzem
-// Licence: wxWindows license
+// Copyright: (c) Julian Smart
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
m_ownsImageListNormal = m_ownsImageListSmall = m_ownsImageListState = FALSE;
m_baseStyle = 0;
m_colCount = 0;
+ m_count = 0;
+ m_ignoreChangeMessages = FALSE;
m_textCtrl = NULL;
m_AnyInternalData = FALSE;
m_hasAnyAttr = FALSE;
if ( m_windowStyle & wxCLIP_SIBLINGS )
wstyle |= WS_CLIPSIBLINGS;
+/*
if ( wxStyleHasBorder(m_windowStyle) )
wstyle |= WS_BORDER;
+*/
+
m_baseStyle = wstyle;
if ( !DoCreateControl(x, y, width, height) )
{
DWORD wstyle = m_baseStyle;
- bool want3D;
- WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
-
- // Even with extended styles, need to combine with WS_BORDER
- // for them to look right.
- if ( want3D )
- wstyle |= WS_BORDER;
+ WXDWORD exStyle = 0;
+ (void) MSWGetStyle(GetWindowStyle(), & exStyle) ;
long oldStyle = 0; // Dummy
wstyle |= ConvertToMSWStyle(oldStyle, m_windowStyle);
int n = GetItemCount();
int i = 0;
+ m_ignoreChangeMessages = TRUE;
for (i = 0; i < n; i++)
wxDeleteInternalData(this, i);
+ m_ignoreChangeMessages = FALSE;
m_AnyInternalData = FALSE;
}
if ( m_textCtrl )
{
- m_textCtrl->SetHWND(0);
m_textCtrl->UnsubclassWin();
+ m_textCtrl->SetHWND(0);
delete m_textCtrl;
m_textCtrl = NULL;
}
// Gets the number of items in the list control
int wxListCtrl::GetItemCount() const
{
- return ListView_GetItemCount(GetHwnd());
+ return m_count;
}
// Retrieves the spacing between icons in pixels.
return FALSE;
}
+ m_count -= 1;
+ wxASSERT_MSG( m_count == ListView_GetItemCount(GetHwnd()),
+ wxT("m_count should match ListView_GetItemCount"));
+
// the virtual list control doesn't refresh itself correctly, help it
if ( IsVirtual() )
{
// Deletes all items
bool wxListCtrl::DeleteAllItems()
{
+ FreeAllInternalData();
return ListView_DeleteAllItems(GetHwnd()) != 0;
}
// [re]create the text control wrapping the HWND we got
if ( m_textCtrl )
{
- m_textCtrl->SetHWND(0);
m_textCtrl->UnsubclassWin();
+ m_textCtrl->SetHWND(0);
delete m_textCtrl;
}
}
};
+ long rv = ListView_InsertItem(GetHwnd(), & item);
+ m_count += 1;
+ wxASSERT_MSG( m_count == ListView_GetItemCount(GetHwnd()),
+ wxT("m_count should match ListView_GetItemCount"));
- return (long) ListView_InsertItem(GetHwnd(), & item);
+ return rv;
}
long wxListCtrl::InsertItem(long index, const wxString& label)
bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
{
+
// prepare the event
// -----------------
const int iItem = nmLV->iItem;
- // set the data event field for all messages for which the system gives
- // us a valid NM_LISTVIEW::lParam
- switch ( nmLV->hdr.code )
+
+ // FreeAllInternalData will cause LVN_ITEMCHANG* messages, which can be
+ // ignored for efficiency. It is done here because the internal data is in the
+ // process of being deleted so we don't want to try and access it below.
+ if ( m_ignoreChangeMessages &&
+ ( (nmLV->hdr.code == LVN_ITEMCHANGED) || (nmLV->hdr.code == LVN_ITEMCHANGING)))
{
- case LVN_BEGINDRAG:
- case LVN_BEGINRDRAG:
- case LVN_COLUMNCLICK:
- case LVN_ITEMCHANGED:
- case LVN_ITEMCHANGING:
- if ( iItem != -1 )
- {
- if ( iItem >= GetItemCount() )
- {
- // there is apparently a bug in comctl32.dll version
- // 5.50.4704.1100 (note that the MS DLL database
- // doesn't say what this version is, it's not the one
- // shipped with W2K although the bug was reported under
- // that system) and it sends us LVN_ITEMCHANGING
- // notifications with the item out of range -- and as
- // we access the items client data, we crash below
- //
- // see
- //
- // http://lists.wxwindows.org/cgi-bin/ezmlm-cgi?8:mss:29852:knlihdmadhaljafjajei
- //
- // and the thread continuation for more details
- // (although note that the bug may be present in other
- // versions of comctl32.dll as well as it has been
- // reported quite a few times)
- //
- // to fix this, simply ignore these "bad" events (as
- // above with HDN_GETDISPINFOW)
- return TRUE;
- }
+ return TRUE;
+ }
- wxListItemInternalData *internaldata =
- (wxListItemInternalData *) nmLV->lParam;
- if ( internaldata )
- event.m_item.m_data = internaldata->lParam;
- }
+ // If we have a valid item then check if there is a data value
+ // associated with it and put it in the event.
+ if ( iItem >= 0 && iItem < GetItemCount() )
+ {
+ wxListItemInternalData *internaldata =
+ wxGetInternalData(GetHwnd(), iItem);
- default:
- // fall through
- ;
+ if ( internaldata )
+ event.m_item.m_data = internaldata->lParam;
}
+
switch ( nmhdr->code )
{
case LVN_BEGINRDRAG:
break;
case LVN_DELETEALLITEMS:
+ m_count = 0;
eventType = wxEVT_COMMAND_LIST_DELETE_ALL_ITEMS;
event.m_itemIndex = -1;
break;
case LVN_DELETEITEM:
+ if (m_count == 0)
+ // this should be prevented by the post-processing code below,
+ // but "just in case"
+ return FALSE;
+
eventType = wxEVT_COMMAND_LIST_DELETE_ITEM;
event.m_itemIndex = iItem;
// delete the assoicated internal data
event.SetEventType(eventType);
- if ( !GetEventHandler()->ProcessEvent(event) )
- return FALSE;
+ bool processed = GetEventHandler()->ProcessEvent(event);
// post processing
// ---------------
-
switch ( nmhdr->code )
{
case LVN_DELETEALLITEMS:
// notifications - this makes deleting all items from a list ctrl
// much faster
*result = TRUE;
-
return TRUE;
case LVN_ENDLABELEDITA:
{
// EDIT control will be deleted by the list control itself so
// prevent us from deleting it as well
- m_textCtrl->SetHWND(0);
m_textCtrl->UnsubclassWin();
+ m_textCtrl->SetHWND(0);
delete m_textCtrl;
m_textCtrl = NULL;
}
return TRUE;
}
- *result = !event.IsAllowed();
+ if ( processed )
+ *result = !event.IsAllowed();
- return TRUE;
+ return processed;
}
#if defined(_WIN32_IE) && _WIN32_IE >= 0x300
{
// this is a pure virtual function, in fact - which is not really pure
// because the controls which are not virtual don't need to implement it
- wxFAIL_MSG( _T("not supposed to be called") );
+ wxFAIL_MSG( _T("wxListCtrl::OnGetItemText not supposed to be called") );
return wxEmptyString;
}
int wxListCtrl::OnGetItemImage(long WXUNUSED(item)) const
{
// same as above
- wxFAIL_MSG( _T("not supposed to be called") );
+ wxFAIL_MSG( _T("wxListCtrl::OnGetItemImage not supposed to be called") );
return -1;
}
{
wxLogLastError(_T("ListView_SetItemCount"));
}
+ m_count = count;
+ wxASSERT_MSG( m_count == ListView_GetItemCount(GetHwnd()),
+ wxT("m_count should match ListView_GetItemCount"));
}
void wxListCtrl::RefreshItem(long item)
wxListItemInternalData *data = wxGetInternalData(ctl, itemId);
if (data)
{
- delete data;
LV_ITEM item;
memset(&item, 0, sizeof(item));
item.iItem = itemId;
item.mask = LVIF_PARAM;
item.lParam = (LPARAM) 0;
ListView_SetItem((HWND)ctl->GetHWND(), &item);
+ delete data;
}
}
projects / wxWidgets.git / blobdiff