X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ff3d11a0ab976879ff87c826f660786fee172ed9..3c85ada9dbd66f72f174c049744e8cdaa444d99f:/src/generic/listctrl.cpp

diff --git a/src/generic/listctrl.cpp b/src/generic/listctrl.cpp
index 8ea0eada4e..23f67b2520 100644
--- a/src/generic/listctrl.cpp
+++ b/src/generic/listctrl.cpp
@@ -616,12 +616,17 @@ public:
     // return the hit code for the corresponding position (in this line)
     long HitTestLine(size_t line, int x, int y) const;
 
+    // bring the selected item into view, scrolling to it if necessary
+    void MoveToItem(size_t item);
+
+    // bring the current item into view
+    void MoveToFocus() { MoveToItem(m_current); }
+
     void EditLabel( long item );
     void OnRenameTimer();
     void OnRenameAccept();
 
     void OnMouse( wxMouseEvent &event );
-    void MoveToFocus();
 
     // called to switch the selection from the current item to newCurrent,
     void OnArrowChar( size_t newCurrent, const wxKeyEvent& event );
@@ -662,7 +667,7 @@ public:
     int GetSelectedItemCount();
 
     // set the scrollbars and update the positions of the items
-    void RecalculatePositions();
+    void RecalculatePositions(bool noRefresh = FALSE);
 
     // refresh the window and the header
     void RefreshAll();
@@ -819,6 +824,9 @@ private:
     // initialize the current item if needed
     void UpdateCurrent();
 
+    // delete all items but don't refresh: called from dtor
+    void DoDeleteAllItems();
+
     // called when an item is [un]focuded, i.e. becomes [not] current
     //
     // currently unused
@@ -2159,7 +2167,7 @@ wxListMainWindow::wxListMainWindow( wxWindow *parent,
 
 wxListMainWindow::~wxListMainWindow()
 {
-    DeleteEverything();
+    DoDeleteAllItems();
 
     delete m_highlightBrush;
 
@@ -2400,7 +2408,7 @@ void wxListMainWindow::RefreshLines( size_t lineFrom, size_t lineTo )
         rect.x = 0;
         rect.y = GetLineY(lineFrom);
         rect.width = GetClientSize().x;
-        rect.height = GetLineY(lineTo) - rect.y;
+        rect.height = GetLineY(lineTo) - rect.y + GetLineHeight();
 
         CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
         RefreshRect( rect );
@@ -2483,11 +2491,15 @@ void wxListMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
         CalcUnscrolledPosition(0, 0, &xOrig, &yOrig);
 
         // tell the caller cache to cache the data
-        wxListEvent evCache(wxEVT_COMMAND_LIST_CACHE_HINT, GetParent()->GetId());
-        evCache.SetEventObject( GetParent() );
-        evCache.m_oldItemIndex = visibleFrom;
-        evCache.m_itemIndex = visibleTo;
-        GetParent()->GetEventHandler()->ProcessEvent( evCache );
+        if ( IsVirtual() )
+        {
+            wxListEvent evCache(wxEVT_COMMAND_LIST_CACHE_HINT,
+                                GetParent()->GetId());
+            evCache.SetEventObject( GetParent() );
+            evCache.m_oldItemIndex = visibleFrom;
+            evCache.m_itemIndex = visibleTo;
+            GetParent()->GetEventHandler()->ProcessEvent( evCache );
+        }
 
         for ( size_t line = visibleFrom; line <= visibleTo; line++ )
         {
@@ -2605,7 +2617,12 @@ void wxListMainWindow::SendNotify( size_t line,
     if ( point != wxDefaultPosition )
         le.m_pointDrag = point;
 
-    GetLine(line)->GetItem( 0, le.m_item );
+    if ( command != wxEVT_COMMAND_LIST_DELETE_ITEM )
+    {
+        GetLine(line)->GetItem( 0, le.m_item );
+    }
+    //else: there may be no more such item
+
     GetParent()->GetEventHandler()->ProcessEvent( le );
 }
 
@@ -2864,12 +2881,12 @@ void wxListMainWindow::OnMouse( wxMouseEvent &event )
     }
 }
 
-void wxListMainWindow::MoveToFocus()
+void wxListMainWindow::MoveToItem(size_t item)
 {
-    if ( !HasCurrent() )
+    if ( item == (size_t)-1 )
         return;
 
-    wxRect rect = GetLineRect(m_current);
+    wxRect rect = GetLineRect(item);
 
     int client_w, client_h;
     GetClientSize( &client_w, &client_h );
@@ -3549,7 +3566,8 @@ void wxListMainWindow::SetItemCount(long count)
 
     ResetVisibleLinesRange();
 
-    Refresh();
+    // scrollbars must be reset
+    m_dirty = TRUE;
 }
 
 int wxListMainWindow::GetSelectedItemCount()
@@ -3606,11 +3624,8 @@ bool wxListMainWindow::GetItemPosition(long item, wxPoint& pos)
 // geometry calculation
 // ----------------------------------------------------------------------------
 
-void wxListMainWindow::RecalculatePositions()
+void wxListMainWindow::RecalculatePositions(bool noRefresh)
 {
-    if ( IsEmpty() )
-        return;
-
     wxClientDC dc( this );
     dc.SetFont( GetFont() );
 
@@ -3711,10 +3726,13 @@ void wxListMainWindow::RecalculatePositions()
         SetScrollbars( m_xScroll, m_yScroll, (entireWidth+SCROLL_UNIT_X) / m_xScroll, 0, scroll_pos, 0, TRUE );
     }
 
-    // FIXME: why should we call it from here?
-    UpdateCurrent();
+    if ( !noRefresh )
+    {
+        // FIXME: why should we call it from here?
+        UpdateCurrent();
 
-    RefreshAll();
+        RefreshAll();
+    }
 }
 
 void wxListMainWindow::RefreshAll()
@@ -3795,20 +3813,12 @@ void wxListMainWindow::DeleteItem( long lindex )
 
     size_t index = (size_t)lindex;
 
-    m_dirty = TRUE;
-
     // select the next item when the selected one is deleted
-    if ( m_current == index )
+    if ( m_current >= index )
     {
-        // the last valid index after deleting the item will be count-2
-        if ( m_current == count - 1 )
-        {
-            m_current--;
-        }
+        m_current--;
     }
 
-    SendNotify( index, wxEVT_COMMAND_LIST_DELETE_ITEM );
-
     if ( InReportView() )
     {
         ResetVisibleLinesRange();
@@ -3826,6 +3836,9 @@ void wxListMainWindow::DeleteItem( long lindex )
     }
 
     m_dirty = TRUE;
+
+    SendNotify( index, wxEVT_COMMAND_LIST_DELETE_ITEM );
+
     RefreshAfter(index);
 }
 
@@ -3839,7 +3852,7 @@ void wxListMainWindow::DeleteColumn( int col )
     m_columns.DeleteNode( node );
 }
 
-void wxListMainWindow::DeleteAllItems()
+void wxListMainWindow::DoDeleteAllItems()
 {
     if ( IsEmpty() )
     {
@@ -3871,11 +3884,13 @@ void wxListMainWindow::DeleteAllItems()
     }
 
     m_lines.Clear();
+}
 
-    // NB: don't just set m_dirty to TRUE here as RecalculatePositions()
-    //     doesn't do anything if the control is empty and so we won't be
-    //     refreshed
-    Refresh();
+void wxListMainWindow::DeleteAllItems()
+{
+    DoDeleteAllItems();
+
+    RecalculatePositions();
 }
 
 void wxListMainWindow::DeleteEverything()
@@ -3895,14 +3910,15 @@ void wxListMainWindow::EnsureVisible( long index )
                  _T("invalid index in EnsureVisible") );
 
     // We have to call this here because the label in question might just have
-    // been added and no screen update taken place.
-    if (m_dirty)
-        wxSafeYield();
+    // been added and its position is not known yet
+    if ( m_dirty )
+    {
+        m_dirty = FALSE;
 
-    size_t oldCurrent = m_current;
-    m_current = (size_t)index;
-    MoveToFocus();
-    m_current = oldCurrent;
+        RecalculatePositions(TRUE /* no refresh */);
+    }
+
+    MoveToItem((size_t)index);
 }
 
 long wxListMainWindow::FindItem(long start, const wxString& str, bool WXUNUSED(partial) )