private:
wxMB2WXbuf *m_buf;
-#else
+#else // !wxUSE_UNICODE
wxLV_ITEM(LV_ITEMW &item)
{
m_item = new LV_ITEM((LV_ITEM&)item);
+
+ // the code below doesn't compile without wxUSE_WCHAR_T and as I don't
+ // know if it's useful to have it at all (do we ever get Unicode
+ // notifications in ANSI mode? I don't think so...) I'm not going to
+ // write alternative implementation right now
+ //
+ // but if it is indeed used, we should simply directly use
+ // ::WideCharToMultiByte() here
+#if wxUSE_WCHAR_T
if ( (item.mask & LVIF_TEXT) && item.pszText )
{
-#ifdef __WXWINE__
- // FIXME
- m_buf = new wxWC2WXbuf(wxConvLocal.cWC2WX((const __wchar_t* ) item.pszText));
-#else
m_buf = new wxWC2WXbuf(wxConvLocal.cWC2WX(item.pszText));
-#endif
m_item->pszText = (wxChar*)m_buf->data();
}
else
+#endif // wxUSE_WCHAR_T
m_buf = NULL;
}
wxLV_ITEM(LV_ITEMA &item) : m_buf(NULL), m_item(&item) {}
private:
wxWC2WXbuf *m_buf;
-#endif
+#endif // wxUSE_UNICODE/!wxUSE_UNICODE
LV_ITEM *m_item;
+
+ DECLARE_NO_COPY_CLASS(wxLV_ITEM)
};
///////////////////////////////////////////////////////
if (attr)
delete attr;
};
+
+ DECLARE_NO_COPY_CLASS(wxListItemInternalData)
};
// Get the internal data structure
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;
int n = GetItemCount();
int i = 0;
+ m_ignoreChangeMessages = TRUE;
for (i = 0; i < n; i++)
wxDeleteInternalData(this, i);
+ m_ignoreChangeMessages = FALSE;
m_AnyInternalData = FALSE;
}
info.m_itemId = item;
if (!GetItem(info))
- return wxString("");
+ return wxEmptyString;
return info.m_text;
}
// 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;
}
// ListView_EditLabel requires that the list has focus.
SetFocus();
+
WXHWND hWnd = (WXHWND) ListView_EditLabel(GetHwnd(), item);
+ if ( !hWnd )
+ {
+ // failed to start editing
+ return NULL;
+ }
- if (m_textCtrl)
+ // [re]create the text control wrapping the HWND we got
+ if ( m_textCtrl )
{
m_textCtrl->SetHWND(0);
m_textCtrl->UnsubclassWin();
delete m_textCtrl;
}
- m_textCtrl = (wxTextCtrl*) textControlClass->CreateObject();
+ m_textCtrl = (wxTextCtrl *)textControlClass->CreateObject();
m_textCtrl->SetHWND(hWnd);
m_textCtrl->SubclassWin(hWnd);
m_textCtrl->SetParent(this);
+ // we must disallow TABbing away from the control while the edit contol is
+ // shown because this leaves it in some strange state (just try removing
+ // this line and then pressing TAB while editing an item in listctrl
+ // inside a panel)
+ m_textCtrl->SetWindowStyle(m_textCtrl->GetWindowStyle() | wxTE_PROCESS_TAB);
+
return 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)
return InsertColumn(col, item);
}
-// Scrolls the list control. If in icon, small icon or report view mode,
-// x specifies the number of pixels to scroll. If in list view mode, x
-// specifies the number of columns to scroll.
-// If in icon, small icon or list view mode, y specifies the number of pixels
-// to scroll. If in report view mode, y specifies the number of lines to scroll.
+// scroll the control by the given number of pixels (exception: in list view,
+// dx is interpreted as number of columns)
bool wxListCtrl::ScrollList(int dx, int dy)
{
- return (ListView_Scroll(GetHwnd(), dx, dy) != 0);
+ if ( !ListView_Scroll(GetHwnd(), dx, dy) )
+ {
+ wxLogDebug(_T("ListView_Scroll(%d, %d) failed"), dx, dy);
+
+ return FALSE;
+ }
+
+ return TRUE;
}
// Sort items.
bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
{
+
// prepare the event
// -----------------
// work around is to simply catch both versions and hope that it
// works (why should this message exist in ANSI and Unicode is
// beyond me as it doesn't deal with strings at all...)
+ //
+ // note that fr HDN_TRACK another possibility could be to use
+ // HDN_ITEMCHANGING but it is sent even after HDN_ENDTRACK and when
+ // something other than the item width changes so we'd have to
+ // filter out the unwanted events then
case HDN_BEGINTRACKA:
case HDN_BEGINTRACKW:
eventType = wxEVT_COMMAND_LIST_COL_BEGIN_DRAG;
case HDN_ENDTRACKW:
if ( eventType == wxEVT_NULL )
eventType = wxEVT_COMMAND_LIST_COL_END_DRAG;
+
+ event.m_item.m_width = nmHDR->pitem->cxy;
event.m_col = nmHDR->iItem;
break;
}
break;
+ case HDN_GETDISPINFOW:
+ {
+ LPNMHDDISPINFOW info = (LPNMHDDISPINFOW) lParam;
+ // This is a fix for a strange bug under XP.
+ // Normally, info->iItem is a valid index, but
+ // sometimes this is a silly (large) number
+ // and when we return FALSE via wxControl::MSWOnNotify
+ // to indicate that it hasn't yet been processed,
+ // there's a GPF in Windows.
+ // By returning TRUE here, we avoid further processing
+ // of this strange message.
+ if ( info->iItem >= GetColumnCount() )
+ return TRUE;
+ }
+ // fall through
+
default:
return wxControl::MSWOnNotify(idCtrl, lParam, result);
}
// almost all messages use NM_LISTVIEW
NM_LISTVIEW *nmLV = (NM_LISTVIEW *)nmhdr;
- // this is true for almost all events
- event.m_item.m_data = nmLV->lParam;
+ const int iItem = nmLV->iItem;
+
+
+ // 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)))
+ {
+ return TRUE;
+ }
+
+
+ // 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);
+
+ if ( internaldata )
+ event.m_item.m_data = internaldata->lParam;
+ }
+
switch ( nmhdr->code )
{
eventType = wxEVT_COMMAND_LIST_BEGIN_DRAG;
}
- event.m_itemIndex = nmLV->iItem;
+ event.m_itemIndex = iItem;
event.m_pointDrag.x = nmLV->ptAction.x;
event.m_pointDrag.y = nmLV->ptAction.y;
break;
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 = nmLV->iItem;
+ event.m_itemIndex = iItem;
// delete the assoicated internal data
- wxDeleteInternalData(this, nmLV->iItem);
+ wxDeleteInternalData(this, iItem);
break;
case LVN_SETDISPINFO:
case LVN_INSERTITEM:
eventType = wxEVT_COMMAND_LIST_INSERT_ITEM;
- event.m_itemIndex = nmLV->iItem;
+ event.m_itemIndex = iItem;
break;
case LVN_ITEMCHANGED:
// we translate this catch all message into more interesting
// (and more easy to process) wxWindows events
- // first of all, we deal with the state change events only
- if ( nmLV->uChanged & LVIF_STATE )
+ // first of all, we deal with the state change events only and
+ // only for valid items (item == -1 for the virtual list
+ // control)
+ if ( nmLV->uChanged & LVIF_STATE && iItem != -1 )
{
// temp vars for readability
const UINT stOld = nmLV->uOldState;
const UINT stNew = nmLV->uNewState;
+ event.m_item.SetId(iItem);
+ event.m_item.SetMask(wxLIST_MASK_TEXT |
+ wxLIST_MASK_IMAGE |
+ wxLIST_MASK_DATA);
+ GetItem(event.m_item);
+
// has the focus changed?
if ( !(stOld & LVIS_FOCUSED) && (stNew & LVIS_FOCUSED) )
{
eventType = wxEVT_COMMAND_LIST_ITEM_FOCUSED;
- event.m_itemIndex = nmLV->iItem;
+ event.m_itemIndex = iItem;
}
if ( (stNew & LVIS_SELECTED) != (stOld & LVIS_SELECTED) )
{
// then need to set m_itemIndex as it wasn't done
// above
- event.m_itemIndex = nmLV->iItem;
+ event.m_itemIndex = iItem;
}
eventType = stNew & LVIS_SELECTED
// else translate it into wxEVT_COMMAND_LIST_ITEM_ACTIVATED event
// if it happened on an item (and not on empty place)
- if ( nmLV->iItem == -1 )
+ if ( iItem == -1 )
{
// not on item
return FALSE;
}
eventType = wxEVT_COMMAND_LIST_ITEM_ACTIVATED;
- event.m_itemIndex = nmLV->iItem;
- event.m_item.m_text = GetItemText(nmLV->iItem);
- event.m_item.m_data = GetItemData(nmLV->iItem);
+ event.m_itemIndex = iItem;
+ event.m_item.m_text = GetItemText(iItem);
+ event.m_item.m_data = GetItemData(iItem);
break;
case NM_RCLICK:
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:
// logic here is inversed compared to all the other messages
*result = event.IsAllowed();
+ // don't keep a stale wxTextCtrl around
+ if ( m_textCtrl )
+ {
+ // 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();
+ 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
{
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)
projects / wxWidgets.git / blobdiff