X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/5276b0a53cef4815230e39b54d2ecda14f72cbd1..20ca5632798e70467bb90624cc66ef1f06ebcd28:/src/msw/listctrl.cpp?ds=inline diff --git a/src/msw/listctrl.cpp b/src/msw/listctrl.cpp index 484443466f..fbcfbe7a6d 100644 --- a/src/msw/listctrl.cpp +++ b/src/msw/listctrl.cpp @@ -34,6 +34,7 @@ #include "wx/intl.h" #include "wx/log.h" #include "wx/settings.h" + #include "wx/stopwatch.h" #include "wx/dcclient.h" #include "wx/textctrl.h" #endif @@ -42,6 +43,7 @@ #include "wx/vector.h" #include "wx/msw/private.h" +#include "wx/msw/private/keyboard.h" #if defined(__WXWINCE__) && !defined(__HANDHELDPC__) #include @@ -224,79 +226,6 @@ public: wxDECLARE_NO_COPY_CLASS(wxMSWListItemData); }; -#if wxUSE_EXTENDED_RTTI -WX_DEFINE_FLAGS( wxListCtrlStyle ) - -wxBEGIN_FLAGS( wxListCtrlStyle ) - // new style border flags, we put them first to - // use them for streaming out - wxFLAGS_MEMBER(wxBORDER_SIMPLE) - wxFLAGS_MEMBER(wxBORDER_SUNKEN) - wxFLAGS_MEMBER(wxBORDER_DOUBLE) - wxFLAGS_MEMBER(wxBORDER_RAISED) - wxFLAGS_MEMBER(wxBORDER_STATIC) - wxFLAGS_MEMBER(wxBORDER_NONE) - - // old style border flags - wxFLAGS_MEMBER(wxSIMPLE_BORDER) - wxFLAGS_MEMBER(wxSUNKEN_BORDER) - wxFLAGS_MEMBER(wxDOUBLE_BORDER) - wxFLAGS_MEMBER(wxRAISED_BORDER) - wxFLAGS_MEMBER(wxSTATIC_BORDER) - wxFLAGS_MEMBER(wxBORDER) - - // standard window styles - wxFLAGS_MEMBER(wxTAB_TRAVERSAL) - wxFLAGS_MEMBER(wxCLIP_CHILDREN) - wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW) - wxFLAGS_MEMBER(wxWANTS_CHARS) - wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE) - wxFLAGS_MEMBER(wxALWAYS_SHOW_SB ) - wxFLAGS_MEMBER(wxVSCROLL) - wxFLAGS_MEMBER(wxHSCROLL) - - wxFLAGS_MEMBER(wxLC_LIST) - wxFLAGS_MEMBER(wxLC_REPORT) - wxFLAGS_MEMBER(wxLC_ICON) - wxFLAGS_MEMBER(wxLC_SMALL_ICON) - wxFLAGS_MEMBER(wxLC_ALIGN_TOP) - wxFLAGS_MEMBER(wxLC_ALIGN_LEFT) - wxFLAGS_MEMBER(wxLC_AUTOARRANGE) - wxFLAGS_MEMBER(wxLC_USER_TEXT) - wxFLAGS_MEMBER(wxLC_EDIT_LABELS) - wxFLAGS_MEMBER(wxLC_NO_HEADER) - wxFLAGS_MEMBER(wxLC_SINGLE_SEL) - wxFLAGS_MEMBER(wxLC_SORT_ASCENDING) - wxFLAGS_MEMBER(wxLC_SORT_DESCENDING) - wxFLAGS_MEMBER(wxLC_VIRTUAL) - -wxEND_FLAGS( wxListCtrlStyle ) - -IMPLEMENT_DYNAMIC_CLASS_XTI(wxListCtrl, wxControl,"wx/listctrl.h") - -wxBEGIN_PROPERTIES_TABLE(wxListCtrl) - wxEVENT_PROPERTY( TextUpdated , wxEVT_COMMAND_TEXT_UPDATED , wxCommandEvent ) - - wxPROPERTY_FLAGS( WindowStyle , wxListCtrlStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style -wxEND_PROPERTIES_TABLE() - -wxBEGIN_HANDLERS_TABLE(wxListCtrl) -wxEND_HANDLERS_TABLE() - -wxCONSTRUCTOR_5( wxListCtrl , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle ) - -/* - TODO : Expose more information of a list's layout etc. via appropriate objects (a la NotebookPageInfo) -*/ -#else -IMPLEMENT_DYNAMIC_CLASS(wxListCtrl, wxControl) -#endif - -IMPLEMENT_DYNAMIC_CLASS(wxListView, wxListCtrl) -IMPLEMENT_DYNAMIC_CLASS(wxListItem, wxObject) - -IMPLEMENT_DYNAMIC_CLASS(wxListEvent, wxNotifyEvent) - BEGIN_EVENT_TABLE(wxListCtrl, wxControl) EVT_PAINT(wxListCtrl::OnPaint) END_EVENT_TABLE() @@ -1464,7 +1393,9 @@ bool wxListCtrl::DeleteItem(long item) // Deletes all items bool wxListCtrl::DeleteAllItems() { - return ListView_DeleteAllItems(GetHwnd()) != 0; + // Calling ListView_DeleteAllItems() will always generate an event but we + // shouldn't do it if the control is empty + return !GetItemCount() || ListView_DeleteAllItems(GetHwnd()) != 0; } // Deletes all items @@ -2235,22 +2166,6 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) eventType = wxEVT_COMMAND_LIST_DELETE_ITEM; event.m_itemIndex = iItem; - // delete the associated internal data - if ( wxMSWListItemData *data = MSWGetItemData(iItem) ) - { - const unsigned count = m_internalData.size(); - for ( unsigned n = 0; n < count; n++ ) - { - if ( m_internalData[n] == data ) - { - m_internalData.erase(m_internalData.begin() + n); - wxDELETE(data); - break; - } - } - - wxASSERT_MSG( !data, "invalid internal data pointer?" ); - } break; case LVN_INSERTITEM: @@ -2338,10 +2253,15 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) { eventType = wxEVT_COMMAND_LIST_KEY_DOWN; - // wxCharCodeMSWToWX() returns 0 if the key is an ASCII - // value which should be used as is - int code = wxCharCodeMSWToWX(wVKey); - event.m_code = code ? code : wVKey; + event.m_code = wxMSWKeyboard::VKToWX(wVKey); + + if ( event.m_code == WXK_NONE ) + { + // We can't translate this to a standard key code, + // until support for Unicode key codes is added to + // wxListEvent we just ignore them. + return false; + } } event.m_itemIndex = @@ -2447,12 +2367,8 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) #ifdef HAVE_NMLVFINDITEM case LVN_ODFINDITEM: - // this message is only used with the virtual list control but - // even there we don't want to always use it: in a control with - // sufficiently big number of items (defined as > 1000 here), - // accidentally pressing a key could result in hanging an - // application waiting while it performs linear search - if ( IsVirtual() && GetItemCount() <= 1000 ) + // Find an item in a (necessarily virtual) list control. + if ( IsVirtual() ) { NMLVFINDITEM* pFindInfo = (NMLVFINDITEM*)lParam; @@ -2472,22 +2388,34 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) // this is the first item we should examine, search from it // wrapping if necessary - const int startPos = pFindInfo->iStart; + int startPos = pFindInfo->iStart; const int maxPos = GetItemCount(); - wxCHECK_MSG( startPos <= maxPos, false, - wxT("bad starting position in LVN_ODFINDITEM") ); - int currentPos = startPos; - do + // Check that the index is valid to ensure that our loop + // below always terminates. + if ( startPos < 0 || startPos >= maxPos ) { - // wrap to the beginning if necessary - if ( currentPos == maxPos ) + // When the last item in the control is selected, + // iStart is really set to (invalid) maxPos index so + // accept this silently. + if ( startPos != maxPos ) { - // somewhat surprisingly, LVFI_WRAP isn't set in - // flags but we still should wrap - currentPos = 0; + wxLogDebug(wxT("Ignoring invalid search start ") + wxT("position %d in list control with ") + wxT("%d items."), startPos, maxPos); } + startPos = 0; + } + + // Linear search in a control with a lot of items can take + // a long time so we limit the total time of the search to + // ensure that the program doesn't appear to hang. +#if wxUSE_STOPWATCH + wxStopWatch sw; +#endif // wxUSE_STOPWATCH + for ( int currentPos = startPos; ; ) + { // does this item begin with searchstr? if ( wxStrnicmp(searchstr, GetItemText(currentPos), len) == 0 ) @@ -2495,13 +2423,46 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) *result = currentPos; break; } - } - while ( ++currentPos != startPos ); - if ( *result == -1 ) - { - // not found - return false; + // Go to next item with wrapping if necessary. + if ( ++currentPos == maxPos ) + { + // Surprisingly, LVFI_WRAP seems to be never set in + // the flags so wrap regardless of it. + currentPos = 0; + } + + if ( currentPos == startPos ) + { + // We examined all items without finding anything. + // + // Notice that we still return true as we did + // perform the search, if we didn't do this the + // message would have been considered unhandled and + // the control seems to always select the first + // item by default in this case. + return true; + } + +#if wxUSE_STOPWATCH + // Check the time elapsed only every thousand + // iterations for performance reasons: if we did it + // more often calling wxStopWatch::Time() could take + // noticeable time on its own. + if ( !((currentPos - startPos)%1000) ) + { + // We use half a second to limit the search time + // which is about as long as we can take without + // annoying the user. + if ( sw.Time() > 500 ) + { + // As above, return true to prevent the control + // from selecting the first item by default. + return true; + } + } +#endif // wxUSE_STOPWATCH + } SetItemState(*result, @@ -2601,6 +2562,27 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) m_count = 0; return true; + case LVN_DELETEITEM: + // Delete the associated internal data. Notice that this can be + // done only after the event has been handled as the data could be + // accessed during the handling of the event. + if ( wxMSWListItemData *data = MSWGetItemData(event.m_itemIndex) ) + { + const unsigned count = m_internalData.size(); + for ( unsigned n = 0; n < count; n++ ) + { + if ( m_internalData[n] == data ) + { + m_internalData.erase(m_internalData.begin() + n); + wxDELETE(data); + break; + } + } + + wxASSERT_MSG( !data, "invalid internal data pointer?" ); + } + break; + case LVN_ENDLABELEDITA: case LVN_ENDLABELEDITW: // logic here is inverted compared to all the other messages