\twocolitem{{\bf EVT\_LIST\_END\_LABEL\_EDIT(id, func)}}{Finish editing a label. This can be prevented by calling \helpref{Veto()}{wxnotifyeventveto}.}
\twocolitem{{\bf EVT\_LIST\_DELETE\_ITEM(id, func)}}{Delete an item.}
\twocolitem{{\bf EVT\_LIST\_DELETE\_ALL\_ITEMS(id, func)}}{Delete all items.}
-%\twocolitem{{\bf EVT\_LIST\_GET\_INFO(id, func)}}{Request information from the application, usually the item text.}
-%\twocolitem{{\bf EVT\_LIST\_SET\_INFO(id, func)}}{Information is being supplied (not implemented).}
\twocolitem{{\bf EVT\_LIST\_ITEM\_SELECTED(id, func)}}{The item has been selected.}
\twocolitem{{\bf EVT\_LIST\_ITEM\_DESELECTED(id, func)}}{The item has been deselected.}
\twocolitem{{\bf EVT\_LIST\_ITEM\_ACTIVATED(id, func)}}{The item has been activated (ENTER or double click).}
\latexignore{\rtfignore{\wxheading{Members}}}
+
\membersection{wxListEvent::wxListEvent}
\func{}{wxListEvent}{\param{WXTYPE }{commandType = 0}, \param{int }{id = 0}}
Constructor.
+
\membersection{wxListEvent::GetCacheFrom}\label{wxlisteventgetcachefrom}
\constfunc{long}{GetCacheFrom}{\void}
For {\tt EVT\_LIST\_CACHE\_HINT} event only: return the first item which the
list control advises us to cache.
+
\membersection{wxListEvent::GetCacheTo}\label{wxlisteventgetcacheto}
\constfunc{long}{GetCacheTo}{\void}
For {\tt EVT\_LIST\_CACHE\_HINT} event only: return the last item (inclusive)
which the list control advises us to cache.
+
\membersection{wxListEvent::GetKeyCode}\label{wxlisteventgetkeycode}
\constfunc{int}{GetKeyCode}{\void}
Key code if the event is a keypress event.
+
\membersection{wxListEvent::GetIndex}\label{wxlisteventgetindex}
\constfunc{long}{GetIndex}{\void}
The item index.
+
\membersection{wxListEvent::GetColumn}\label{wxlisteventgetcolumn}
\constfunc{int}{GetColumn}{\void}
the column click events it may be $-1$ if the user clicked in the list control
header outside any column.
+
\membersection{wxListEvent::GetPoint}\label{wxlisteventgetpoint}
\constfunc{wxPoint}{GetPoint}{\void}
The position of the mouse pointer if the event is a drag event.
+
\membersection{wxListEvent::GetLabel}\label{wxlisteventgetlabel}
\constfunc{const wxString\&}{GetLabel}{\void}
-The label.
+The (new) item label for \texttt{EVT\_LIST\_END\_LABEL\_EDIT} event.
+
\membersection{wxListEvent::GetText}\label{wxlisteventgettext}
The text.
+
\membersection{wxListEvent::GetImage}\label{wxlisteventgetimage}
\constfunc{int}{GetImage}{\void}
The image.
+
\membersection{wxListEvent::GetData}\label{wxlisteventgetdata}
\constfunc{long}{GetData}{\void}
The data.
+
\membersection{wxListEvent::GetMask}\label{wxlisteventgetmask}
\constfunc{long}{GetMask}{\void}
The mask.
+
\membersection{wxListEvent::GetItem}\label{wxlisteventgetitem}
\constfunc{const wxListItem\&}{GetItem}{\void}
An item object, used by some events. See also \helpref{wxListCtrl::SetItem}{wxlistctrlsetitem}.
+\membersection{wxListEvent::IsEditCancelled}\label{wxlisteventiseditcancelled}
+
+\constfunc{bool}{IsEditCancelled}{\void}
+
+This method only makes sense for \texttt{EVT\_LIST\_END\_LABEL\_EDIT} message
+and returns \true if it the label editing has been cancelled by the user
+(\helpref{GetLabel}{wxlisteventgetlabel} returns an empty string in this case
+but it doesn't allow to distinguish between really cancelling the edit and,
+admittedly rare, case when the user wants to rename it to an empty string0.
+
+
// ----------------------------------------------------------------------------
// We have to handle both fooW and fooA notifications in several cases
-// because of broken commctl.dll and/or unicows.dll. This class is used to
+// because of broken comctl32.dll and/or unicows.dll. This class is used to
// convert LV_ITEMA and LV_ITEMW to LV_ITEM (which is either LV_ITEMA or
// LV_ITEMW depending on wxUSE_UNICODE setting), so that it can be processed
// by wxConvertToMSWListItem().
+#if wxUSE_UNICODE
+ #define LV_ITEM_NATIVE LV_ITEMW
+ #define LV_ITEM_OTHER LV_ITEMA
+
+ #define LV_CONV_TO_WX cMB2WX
+ #define LV_CONV_BUF wxMB2WXbuf
+#else // ANSI
+ #define LV_ITEM_NATIVE LV_ITEMA
+ #define LV_ITEM_OTHER LV_ITEMW
+
+ #define LV_CONV_TO_WX cWC2WX
+ #define LV_CONV_BUF wxWC2WXbuf
+#endif // Unicode/ANSI
+
class wxLV_ITEM
{
public:
- ~wxLV_ITEM() { delete m_buf; }
- operator LV_ITEM&() const { return *m_item; }
+ // default ctor, use Init() later
+ wxLV_ITEM() { m_buf = NULL; m_pItem = NULL; }
-#if wxUSE_UNICODE
- wxLV_ITEM(LV_ITEMW &item) : m_buf(NULL), m_item(&item) {}
- wxLV_ITEM(LV_ITEMA &item)
+ // init without conversion
+ void Init(LV_ITEM_NATIVE& item)
{
- m_item = new LV_ITEM((LV_ITEM&)item);
- if ( (item.mask & LVIF_TEXT) && item.pszText )
- {
- m_buf = new wxMB2WXbuf(wxConvLocal.cMB2WX(item.pszText));
- m_item->pszText = (wxChar*)m_buf->data();
- }
- else
- m_buf = NULL;
+ wxASSERT_MSG( !m_pItem, _T("Init() called twice?") );
+
+ m_pItem = &item;
}
-private:
- wxMB2WXbuf *m_buf;
-#else // !wxUSE_UNICODE
- wxLV_ITEM(LV_ITEMW &item)
+ // init with conversion
+ void Init(LV_ITEM_OTHER& item)
{
- m_item = new LV_ITEM((LV_ITEM&)item);
+ // avoid unnecessary dynamic memory allocation, jjust make m_pItem
+ // point to our own m_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
+ // memcpy() can't work if the struct sizes are different
+ wxCOMPILE_TIME_ASSERT( sizeof(LV_ITEM_OTHER) == sizeof(LV_ITEM_NATIVE),
+ CodeCantWorkIfDiffSizes);
+
+ memcpy(&m_item, &item, sizeof(LV_ITEM_NATIVE));
+
+ // convert text from ANSI to Unicod if necessary
if ( (item.mask & LVIF_TEXT) && item.pszText )
{
- m_buf = new wxWC2WXbuf(wxConvLocal.cWC2WX(item.pszText));
- m_item->pszText = (wxChar*)m_buf->data();
+ m_buf = new LV_CONV_BUF(wxConvLocal.LV_CONV_TO_WX(item.pszText));
+ 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) {}
+
+ // ctor without conversion
+ wxLV_ITEM(LV_ITEM_NATIVE& item) : m_buf(NULL), m_pItem(&item) { }
+
+ // ctor with conversion
+ wxLV_ITEM(LV_ITEM_OTHER& item) : m_buf(NULL)
+ {
+ Init(item);
+ }
+
+ ~wxLV_ITEM() { delete m_buf; }
+
+ // conversion to the real LV_ITEM
+ operator LV_ITEM_NATIVE&() const { return *m_pItem; }
+
private:
- wxWC2WXbuf *m_buf;
-#endif // wxUSE_UNICODE/!wxUSE_UNICODE
+ LV_CONV_BUF *m_buf;
- LV_ITEM *m_item;
+ LV_ITEM_NATIVE *m_pItem;
+ LV_ITEM_NATIVE m_item;
DECLARE_NO_COPY_CLASS(wxLV_ITEM)
};
break;
// NB: we have to handle both *A and *W versions here because some
- // versions of comctl32.dll send ANSI message to an Unicode app
+ // versions of comctl32.dll send ANSI messages even to the
+ // Unicode windows
case LVN_BEGINLABELEDITA:
- {
- eventType = wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT;
- wxLV_ITEM item(((LV_DISPINFOA *)lParam)->item);
- wxConvertFromMSWListItem(GetHwnd(), event.m_item, item);
- event.m_itemIndex = event.m_item.m_itemId;
- }
- break;
case LVN_BEGINLABELEDITW:
{
+ wxLV_ITEM item;
+ if ( nmhdr->code == LVN_BEGINLABELEDITA )
+ {
+ item.Init(((LV_DISPINFOA *)lParam)->item);
+ }
+ else // LVN_BEGINLABELEDITW
+ {
+ item.Init(((LV_DISPINFOW *)lParam)->item);
+ }
+
eventType = wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT;
- wxLV_ITEM item(((LV_DISPINFOW *)lParam)->item);
wxConvertFromMSWListItem(GetHwnd(), event.m_item, item);
event.m_itemIndex = event.m_item.m_itemId;
}
break;
case LVN_ENDLABELEDITA:
+ case LVN_ENDLABELEDITW:
{
- eventType = wxEVT_COMMAND_LIST_END_LABEL_EDIT;
- wxLV_ITEM item(((LV_DISPINFOA *)lParam)->item);
- wxConvertFromMSWListItem(NULL, event.m_item, item);
- if ( ((LV_ITEM)item).pszText == NULL ||
- ((LV_ITEM)item).iItem == -1 )
+ wxLV_ITEM item;
+ if ( nmhdr->code == LVN_ENDLABELEDITA )
{
- // 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->UnsubclassWin();
- m_textCtrl->SetHWND(0);
- delete m_textCtrl;
- m_textCtrl = NULL;
- }
- return FALSE;
+ item.Init(((LV_DISPINFOA *)lParam)->item);
+ }
+ else // LVN_ENDLABELEDITW
+ {
+ item.Init(((LV_DISPINFOW *)lParam)->item);
}
- event.m_itemIndex = event.m_item.m_itemId;
- }
- break;
- case LVN_ENDLABELEDITW:
- {
- eventType = wxEVT_COMMAND_LIST_END_LABEL_EDIT;
- wxLV_ITEM item(((LV_DISPINFOW *)lParam)->item);
- wxConvertFromMSWListItem(NULL, event.m_item, item);
- if ( ((LV_ITEM)item).pszText == NULL ||
- ((LV_ITEM)item).iItem == -1 )
+ // was editing cancelled?
+ const LV_ITEM& lvi = (LV_ITEM)item;
+ if ( !lvi.pszText || lvi.iItem == -1 )
{
// don't keep a stale wxTextCtrl around
if ( m_textCtrl )
delete m_textCtrl;
m_textCtrl = NULL;
}
- return FALSE;
+
+ event.SetEditCanceled(true);
}
+ eventType = wxEVT_COMMAND_LIST_END_LABEL_EDIT;
+ wxConvertFromMSWListItem(NULL, event.m_item, item);
event.m_itemIndex = event.m_item.m_itemId;
}
break;
projects / wxWidgets.git / commitdiff
