]> git.saurik.com Git - wxWidgets.git/blobdiff - src/propgrid/propgridpagestate.cpp
Raise the scrollbars on reparenting (part of patch #9076)
[wxWidgets.git] / src / propgrid / propgridpagestate.cpp
index 802f05ee772d794fe4990146c41706aecb0035e7..b1dd806885cad145b0baccc847c4fc29afe75e6b 100644 (file)
@@ -107,7 +107,8 @@ void wxPropertyGridIteratorBase::Assign( const wxPropertyGridIteratorBase& it )
 void wxPropertyGridIteratorBase::Prev()
 {
     wxPGProperty* property = m_property;
-    wxASSERT( property );
+    if ( !property )
+        return;
 
     wxPGProperty* parent = property->GetParent();
     wxASSERT( parent );
@@ -152,7 +153,8 @@ void wxPropertyGridIteratorBase::Prev()
 void wxPropertyGridIteratorBase::Next( bool iterateChildren )
 {
     wxPGProperty* property = m_property;
-    wxASSERT( property );
+    if ( !property )
+        return;
 
     if ( property->GetChildCount() &&
          wxPG_ITERATOR_PARENTEXMASK_TEST(property, m_parentExMask) &&
@@ -201,12 +203,11 @@ void wxPropertyGridIteratorBase::Next( bool iterateChildren )
 
 wxPropertyGridPageState::wxPropertyGridPageState()
 {
-    m_pPropGrid = (wxPropertyGrid*) NULL;
+    m_pPropGrid = NULL;
     m_regularArray.SetParentState(this);
     m_properties = &m_regularArray;
-    m_abcArray = (wxPGRootProperty*) NULL;
-    m_currentCategory = (wxPropertyCategory*) NULL;
-    m_selected = (wxPGProperty*) NULL;
+    m_abcArray = NULL;
+    m_currentCategory = NULL;
     m_width = 0;
     m_virtualHeight = 0;
     m_lastCaptionBottomnest = 1;
@@ -216,6 +217,9 @@ wxPropertyGridPageState::wxPropertyGridPageState()
     m_colWidths.push_back( wxPG_DEFAULT_SPLITTERX );
     m_colWidths.push_back( wxPG_DEFAULT_SPLITTERX );
     m_fSplitterX = wxPG_DEFAULT_SPLITTERX;
+
+    // By default, we only have the 'value' column editable
+    m_editableColumns.push_back(1);
 }
 
 // -----------------------------------------------------------------------
@@ -231,7 +235,7 @@ void wxPropertyGridPageState::InitNonCatMode()
 {
     if ( !m_abcArray )
     {
-        m_abcArray = new wxPGRootProperty();
+        m_abcArray = new wxPGRootProperty(wxS("<Root_NonCat>"));
         m_abcArray->SetParentState(this);
         m_abcArray->SetFlag(wxPG_PROP_CHILDREN_ARE_COPIES);
     }
@@ -255,7 +259,7 @@ void wxPropertyGridPageState::InitNonCatMode()
             wxPGProperty* parent = p->GetParent();
             if ( parent->IsCategory() || parent->IsRoot() )
             {
-                m_abcArray->AddChild2(p);
+                m_abcArray->DoAddChild(p);
                 p->m_parent = &m_regularArray;
             }
         }
@@ -268,20 +272,27 @@ void wxPropertyGridPageState::InitNonCatMode()
 
 void wxPropertyGridPageState::DoClear()
 {
+    if ( m_pPropGrid && m_pPropGrid->GetState() == this  )
+    {
+        m_pPropGrid->ClearSelection(false);
+    }
+    else
+    {
+        m_selection.clear();
+    }
+
     m_regularArray.Empty();
     if ( m_abcArray )
         m_abcArray->Empty();
 
     m_dictName.clear();
 
-    m_currentCategory = (wxPropertyCategory*) NULL;
+    m_currentCategory = NULL;
     m_lastCaptionBottomnest = 1;
     m_itemsAdded = 0;
 
     m_virtualHeight = 0;
     m_vhCalcPending = 0;
-
-    m_selected = (wxPGProperty*) NULL;
 }
 
 // -----------------------------------------------------------------------
@@ -346,9 +357,9 @@ void wxPropertyGridPageState::OnClientWidthChange( int newWidth, int widthChange
             long timeSinceCreation = (::wxGetLocalTimeMillis() - GetGrid()->m_timeCreated).ToLong();
 
             // If too long, don't set splitter
-            if ( timeSinceCreation < 3000 )
+            if ( timeSinceCreation < 250 )
             {
-                if ( m_properties->GetChildCount() || timeSinceCreation > 750 )
+                if ( m_properties->GetChildCount() )
                 {
                     SetSplitterLeft( false );
                 }
@@ -369,7 +380,7 @@ void wxPropertyGridPageState::OnClientWidthChange( int newWidth, int widthChange
 wxPGProperty* wxPropertyGridPageState::GetLastItem( int flags )
 {
     if ( !m_properties->GetChildCount() )
-        return (wxPGProperty*) NULL;
+        return NULL;
 
     wxPG_ITERATOR_CREATE_MASKS(flags, int itemExMask, int parentExMask)
 
@@ -403,7 +414,7 @@ wxPropertyCategory* wxPropertyGridPageState::GetPropertyCategory( const wxPGProp
             return (wxPropertyCategory*)parent;
     } while ( grandparent );
 
-    return (wxPropertyCategory*) NULL;
+    return NULL;
 }
 
 // -----------------------------------------------------------------------
@@ -443,7 +454,7 @@ wxPGProperty* wxPropertyGridPageState::BaseGetPropertyByName( const wxString& na
     it = m_dictName.find(name);
     if ( it != m_dictName.end() )
         return (wxPGProperty*) it->second;
-    return (wxPGProperty*) NULL;
+    return NULL;
 }
 
 // -----------------------------------------------------------------------
@@ -490,7 +501,7 @@ void wxPropertyGridPageState::DoSetPropertyName( wxPGProperty* p,
 #define ITEM_ITERATION_INIT(startparent, startindex, state) \
     parent = startparent; \
     i = (unsigned int)startindex; \
-    if ( parent == (wxPGProperty*) NULL ) \
+    if ( parent == NULL ) \
     { \
         parent = state->m_properties; \
         i = 0; \
@@ -599,67 +610,113 @@ bool wxPropertyGridPageState::EnableCategories( bool enable )
 
 // -----------------------------------------------------------------------
 
-#if wxUSE_STL
-#include <algorithm>
+static int wxPG_SortFunc_ByFunction(wxPGProperty **pp1, wxPGProperty **pp2)
+{
+    wxPGProperty *p1 = *pp1;
+    wxPGProperty *p2 = *pp2;
+    wxPropertyGrid* pg = p1->GetGrid();
+    wxPGSortCallback sortFunction = pg->GetSortFunction();
+    return sortFunction(pg, p1, p2);
+}
 
-static bool wxPG_SortFunc(wxPGProperty *p1, wxPGProperty *p2)
+static int wxPG_SortFunc_ByLabel(wxPGProperty **pp1, wxPGProperty **pp2)
 {
-    return p1->GetLabel() < p2->GetLabel();
+    wxPGProperty *p1 = *pp1;
+    wxPGProperty *p2 = *pp2;
+    return p1->GetLabel().CmpNoCase( p2->GetLabel() );
 }
 
-#else
+#if 0
+//
+// For wxVector w/ wxUSE_STL=1, you would use code like this instead:
+//
+
+#include <algorithm>
 
-static int wxPG_SortFunc(wxPGProperty **p1, wxPGProperty **p2)
+static bool wxPG_SortFunc_ByFunction(wxPGProperty *p1, wxPGProperty *p2)
 {
-    wxPGProperty *pp1 = *p1;
-    wxPGProperty *pp2 = *p2;
-    return pp1->GetLabel().compare( pp2->GetLabel() );
+    wxPropertyGrid* pg = p1->GetGrid();
+    wxPGSortCallback sortFunction = pg->GetSortFunction();
+    return sortFunction(pg, p1, p2) < 0;
 }
 
+static bool wxPG_SortFunc_ByLabel(wxPGProperty *p1, wxPGProperty *p2)
+{
+    return p1->GetLabel().CmpNoCase( p2->GetLabel() ) < 0;
+}
 #endif
 
-void wxPropertyGridPageState::SortChildren( wxPGProperty* p )
+void wxPropertyGridPageState::DoSortChildren( wxPGProperty* p,
+                                              int flags )
 {
     if ( !p )
-        p = (wxPGProperty*)m_properties;
+        p = m_properties;
 
+    // Can only sort items with children
     if ( !p->GetChildCount() )
         return;
 
-    wxPGProperty* pwc = (wxPGProperty*)p;
+    // Never sort children of aggregate properties
+    if ( p->HasFlag(wxPG_PROP_AGGREGATE) )
+        return;
 
-    // Can only sort items with children
-    if ( pwc->GetChildCount() < 1 )
+    if ( (flags & wxPG_SORT_TOP_LEVEL_ONLY)
+         && !p->IsCategory() && !p->IsRoot() )
         return;
 
-#if wxUSE_STL
-    std::sort(pwc->m_children.begin(), pwc->m_children.end(), wxPG_SortFunc);
-#else
-    pwc->m_children.Sort( wxPG_SortFunc );
+    if ( GetGrid()->GetSortFunction() )
+        p->m_children.Sort( wxPG_SortFunc_ByFunction );
+    else
+        p->m_children.Sort( wxPG_SortFunc_ByLabel );
+
+#if 0
+    //
+    // For wxVector w/ wxUSE_STL=1, you would use code like this instead:
+    //
+    if ( GetGrid()->GetSortFunction() )
+        std::sort(p->m_children.begin(), p->m_children.end(),
+                  wxPG_SortFunc_ByFunction);
+    else
+        std::sort(p->m_children.begin(), p->m_children.end(),
+                  wxPG_SortFunc_ByLabel);
 #endif
 
-    // Fix indexes
-    pwc->FixIndicesOfChildren();
+    // Fix indices
+    p->FixIndicesOfChildren();
 
+    if ( flags & wxPG_RECURSE )
+    {
+        // Apply sort recursively
+        for ( unsigned int i=0; i<p->GetChildCount(); i++ )
+            DoSortChildren(p->Item(i), flags);
+    }
 }
 
 // -----------------------------------------------------------------------
 
-void wxPropertyGridPageState::Sort()
+void wxPropertyGridPageState::DoSort( int flags )
 {
-    SortChildren( m_properties );
+    DoSortChildren( m_properties, flags | wxPG_RECURSE );
 
-    // Sort categories as well
-    if ( !IsInNonCatMode() )
-    {
-        size_t i;
-        for ( i=0;i<m_properties->GetChildCount();i++)
-        {
-            wxPGProperty* p = m_properties->Item(i);
-            if ( p->IsCategory() )
-                SortChildren( p );
-        }
-    }
+    // We used to sort categories as well here also if in non-categorized
+    // mode, but doing would naturally cause child indices to become
+    // corrupted.
+}
+
+// -----------------------------------------------------------------------
+
+bool wxPropertyGridPageState::PrepareAfterItemsAdded()
+{
+    if ( !m_itemsAdded ) return false;
+
+    wxPropertyGrid* pg = GetGrid();
+
+    m_itemsAdded = 0;
+
+    if ( pg->HasFlag(wxPG_AUTO_SORT) )
+        DoSort(wxPG_SORT_TOP_LEVEL_ONLY);
+
+    return true;
 }
 
 // -----------------------------------------------------------------------
@@ -670,7 +727,7 @@ wxPGProperty* wxPropertyGridPageState::DoGetItemAtY( int y ) const
 {
     // Outside?
     if ( y < 0 )
-        return (wxPGProperty*) NULL;
+        return NULL;
 
     unsigned int a = 0;
     return m_properties->GetItemAtY(y, GetGrid()->m_lineHeight, &a);
@@ -678,11 +735,13 @@ wxPGProperty* wxPropertyGridPageState::DoGetItemAtY( int y ) const
 
 // -----------------------------------------------------------------------
 
-wxPropertyGridHitTestResult wxPropertyGridPageState::HitTest( const wxPoint&pt ) const
+wxPropertyGridHitTestResult
+wxPropertyGridPageState::HitTest( const wxPoint&pt ) const
 {
     wxPropertyGridHitTestResult result;
-    result.column = HitTestH( pt.x, &result.splitter, &result.splitterHitOffset );
-    result.property = DoGetItemAtY( pt.y );
+    result.m_column = HitTestH( pt.x, &result.m_splitter,
+                                &result.m_splitterHitOffset );
+    result.m_property = DoGetItemAtY( pt.y );
     return result;
 }
 
@@ -711,8 +770,10 @@ int wxPropertyGridPageState::GetColumnFitWidth(wxClientDC& dc,
             if ( col == 0 )
                 w += ( ((int)p->m_depth-1) * pg->m_subgroup_extramargin );
 
-            //
-            // TODO: Add bitmap support.
+            // account for the bitmap
+            if ( col == 1 )
+                w += p->GetImageOffset(pg->GetImageRect(p, -1).GetWidth());
+
 
             w += (wxPG_XBEFORETEXT*2);
 
@@ -821,7 +882,7 @@ void wxPropertyGridPageState::SetSplitterLeft( bool subProps )
 {
     wxPropertyGrid* pg = GetGrid();
     wxClientDC dc(pg);
-    dc.SetFont(pg->m_font);
+    dc.SetFont(pg->GetFont());
 
     int maxW = GetColumnFitWidth(dc, m_properties, 0, subProps);
 
@@ -838,7 +899,7 @@ wxSize wxPropertyGridPageState::DoFitColumns( bool WXUNUSED(allowGridResize) )
 {
     wxPropertyGrid* pg = GetGrid();
     wxClientDC dc(pg);
-    dc.SetFont(pg->m_font);
+    dc.SetFont(pg->GetFont());
 
     int marginWidth = pg->m_marginWidth;
     int accWid = marginWidth;
@@ -887,10 +948,6 @@ void wxPropertyGridPageState::CheckColumnWidths( int widthChange )
 
     wxPropertyGrid* pg = GetGrid();
 
-#ifdef __WXDEBUG__
-    const bool debug = false;
-#endif
-
     unsigned int i;
     unsigned int lastColumn = m_colWidths.size() - 1;
     int width = m_width;
@@ -898,14 +955,11 @@ void wxPropertyGridPageState::CheckColumnWidths( int widthChange )
 
     //
     // Column to reduce, if needed. Take last one that exceeds minimum width.
-    // Except if auto splitter centering is used, in which case use widest.
     int reduceCol = -1;
-    int highestColWidth = 0;
 
-#ifdef __WXDEBUG__
-    if ( debug )
-        wxLogDebug(wxT("ColumnWidthCheck (virtualWidth: %i, clientWidth: %i)"), width, clientWidth);
-#endif
+    wxLogTrace("propgrid",
+               wxS("ColumnWidthCheck (virtualWidth: %i, clientWidth: %i)"),
+               width, clientWidth);
 
     //
     // Check min sizes
@@ -918,18 +972,9 @@ void wxPropertyGridPageState::CheckColumnWidths( int widthChange )
         }
         else
         {
-            if ( pg->HasFlag(wxPG_SPLITTER_AUTO_CENTER) )
-            {
-                if ( m_colWidths[i] >= highestColWidth )
-                {
-                    highestColWidth = m_colWidths[i];
-                    reduceCol = i;
-                }
-            }
-            else
-            {
-                reduceCol = i;
-            }
+            // Always reduce the last column that is larger than minimum size
+            // (looks nicer, even with auto-centering enabled).
+            reduceCol = i;
         }
     }
 
@@ -937,10 +982,9 @@ void wxPropertyGridPageState::CheckColumnWidths( int widthChange )
     for ( i=0; i<m_colWidths.size(); i++ )
         colsWidth += m_colWidths[i];
 
-#ifdef __WXDEBUG__
-    if ( debug )
-        wxLogDebug(wxT("  HasVirtualWidth: %i  colsWidth: %i"),(int)pg->HasVirtualWidth(),colsWidth);
-#endif
+    wxLogTrace("propgrid",
+               wxS("  HasVirtualWidth: %i  colsWidth: %i"),
+               (int)pg->HasVirtualWidth(), colsWidth);
 
     // Then mode-based requirement
     if ( !pg->HasVirtualWidth() )
@@ -951,10 +995,9 @@ void wxPropertyGridPageState::CheckColumnWidths( int widthChange )
         if ( colsWidth < width )
         {
             // Increase column
-#ifdef __WXDEBUG__
-            if ( debug )
-                wxLogDebug(wxT("  Adjust last column to %i"), m_colWidths[lastColumn] + widthHigher);
-#endif
+            wxLogTrace("propgrid",
+                       wxS("  Adjust last column to %i"),
+                       m_colWidths[lastColumn] + widthHigher);
             m_colWidths[lastColumn] = m_colWidths[lastColumn] + widthHigher;
         }
         else if ( colsWidth > width )
@@ -962,10 +1005,10 @@ void wxPropertyGridPageState::CheckColumnWidths( int widthChange )
             // Reduce column
             if ( reduceCol != -1 )
             {
-            #ifdef __WXDEBUG__
-                if ( debug )
-                    wxLogDebug(wxT("  Reduce column %i (by %i)"), reduceCol, -widthHigher);
-            #endif
+                wxLogTrace("propgrid",
+                           wxT("  Reduce column %i (by %i)"),
+                           reduceCol, -widthHigher);
+
                 // Reduce widest column, and recheck
                 m_colWidths[reduceCol] = m_colWidths[reduceCol] + widthHigher;
                 CheckColumnWidths();
@@ -987,11 +1030,10 @@ void wxPropertyGridPageState::CheckColumnWidths( int widthChange )
             pg->RecalculateVirtualSize();
     }
 
-#ifdef __WXDEBUG__
-    if ( debug )
-        for ( i=0; i<m_colWidths.size(); i++ )
-            wxLogDebug(wxT("col%i: %i"),i,m_colWidths[i]);
-#endif
+    for ( i=0; i<m_colWidths.size(); i++ )
+    {
+        wxLogTrace("propgrid", wxS("col%i: %i"), i, m_colWidths[i]);
+    }
 
     // Auto center splitter
     if ( !(pg->GetInternalFlags() & wxPG_FL_DONT_CENTER_SPLITTER) &&
@@ -1099,6 +1141,29 @@ int wxPropertyGridPageState::HitTestH( int x, int* pSplitterHit, int* pSplitterH
     return col;
 }
 
+bool wxPropertyGridPageState::ArePropertiesAdjacent( wxPGProperty* prop1,
+                                                     wxPGProperty* prop2,
+                                                     int iterFlags ) const
+{
+    const wxPGProperty* ap1 =
+        wxPropertyGridConstIterator::OneStep(this,
+                                             iterFlags,
+                                             prop1,
+                                             1);
+    if ( ap1 && ap1 == prop2 )
+        return true;
+
+    const wxPGProperty* ap2 =
+        wxPropertyGridConstIterator::OneStep(this,
+                                             iterFlags,
+                                             prop1,
+                                             -1);
+    if ( ap2 && ap2 == prop2 )
+        return true;
+
+    return false;
+}
+
 // -----------------------------------------------------------------------
 // wxPropertyGridPageState property value setting and getting
 // -----------------------------------------------------------------------
@@ -1120,7 +1185,8 @@ bool wxPropertyGridPageState::DoSetPropertyValueString( wxPGProperty* p, const w
         if ( res )
         {
             p->SetValue(variant);
-            if ( m_selected==p && this==m_pPropGrid->GetState() )
+            if ( p == m_pPropGrid->GetSelection() &&
+                 this == m_pPropGrid->GetState() )
                 m_pPropGrid->RefreshEditor();
         }
 
@@ -1136,7 +1202,8 @@ bool wxPropertyGridPageState::DoSetPropertyValue( wxPGProperty* p, wxVariant& va
     if ( p )
     {
         p->SetValue(value);
-        if ( m_selected==p && this==m_pPropGrid->GetState() )
+        if ( p == m_pPropGrid->GetSelection() &&
+             this == m_pPropGrid->GetState() )
             m_pPropGrid->RefreshEditor();
 
         return true;
@@ -1158,35 +1225,61 @@ bool wxPropertyGridPageState::DoSetPropertyValueWxObjectPtr( wxPGProperty* p, wx
     return false;
 }
 
+// -----------------------------------------------------------------------
+// wxPropertyGridPageState property operations
 // -----------------------------------------------------------------------
 
-void wxPropertyGridPageState::DoSetPropertyValueUnspecified( wxPGProperty* p )
+bool wxPropertyGridPageState::DoIsPropertySelected( wxPGProperty* prop ) const
 {
-    wxCHECK_RET( p, wxT("invalid property id") );
+    const wxArrayPGProperty& selection = m_selection;
 
-    if ( !p->IsValueUnspecified() )
+    for ( unsigned int i=0; i<selection.size(); i++ )
     {
-        // Value should be set first - editor class methods may need it
-        p->m_value.MakeNull();
+        if ( selection[i] == prop )
+            return true;
+    }
 
-        wxASSERT( m_pPropGrid );
+    return false;
+}
 
-        if ( m_pPropGrid->GetState() == this )
+// -----------------------------------------------------------------------
+
+void wxPropertyGridPageState::DoRemoveFromSelection( wxPGProperty* prop )
+{
+    for ( unsigned int i=0; i<m_selection.size(); i++ )
+    {
+        if ( m_selection[i] == prop )
         {
-            if ( m_pPropGrid->m_selected == p && m_pPropGrid->m_wndEditor )
+            wxPropertyGrid* pg = m_pPropGrid;
+            if ( i == 0 && pg->GetState() == this )
+            {
+                // If first item (ie. one with the active editor) was
+                // deselected, then we need to take some extra measures.
+                wxArrayPGProperty sel = m_selection;
+                sel.erase( sel.begin() + i );
+
+                wxPGProperty* newFirst;
+                if ( sel.size() )
+                    newFirst = sel[0];
+                else
+                    newFirst = NULL;
+
+                pg->DoSelectProperty(newFirst,
+                                     wxPG_SEL_DONT_SEND_EVENT);
+
+                m_selection = sel;
+
+                pg->Refresh();
+            }
+            else
             {
-                p->GetEditorClass()->SetValueToUnspecified(p, m_pPropGrid->GetEditorControl());
+                m_selection.erase( m_selection.begin() + i );
             }
+            return;
         }
-
-        unsigned int i;
-        for ( i = 0; i < p->GetChildCount(); i++ )
-            DoSetPropertyValueUnspecified( p->Item(i) );
     }
 }
 
-// -----------------------------------------------------------------------
-// wxPropertyGridPageState property operations
 // -----------------------------------------------------------------------
 
 bool wxPropertyGridPageState::DoCollapse( wxPGProperty* p )
@@ -1228,7 +1321,7 @@ bool wxPropertyGridPageState::DoSelectProperty( wxPGProperty* p, unsigned int fl
     if ( this == m_pPropGrid->GetState() )
         return m_pPropGrid->DoSelectProperty( p, flags );
 
-    m_selected = p;
+    DoSetSelection(p);
     return true;
 }
 
@@ -1408,18 +1501,17 @@ void wxPropertyGridPageState::DoSetPropertyValues( const wxVariantList& list, wx
                     if ( wxStrcmp(current->GetType(), wxS("list")) == 0 )
                     {
                         DoSetPropertyValues( current->GetList(),
-                                p->IsCategory()?p:((wxPGProperty*)NULL)
+                                p->IsCategory()?p:(NULL)
                             );
                     }
                     else
                     {
-                #ifdef __WXDEBUG__
-                        if ( wxStrcmp(current->GetType(), p->GetValue().GetType()) != 0)
-                        {
-                            wxLogDebug(wxT("wxPropertyGridPageState::DoSetPropertyValues Warning: Setting value of property \"%s\" from variant"),
-                                p->GetName().c_str());
-                        }
-                #endif
+                        wxASSERT_LEVEL_2_MSG(
+                            wxStrcmp(current->GetType(), p->GetValue().GetType()) == 0,
+                            wxString::Format(
+                                wxS("setting value of property \"%s\" from variant"),
+                                p->GetName().c_str())
+                        );
 
                         p->SetValue(*current);
                     }
@@ -1520,7 +1612,7 @@ bool wxPropertyGridPageState::PrepareToAddItem( wxPGProperty* property,
 
     // This will allow better behavior.
     if ( scheduledParent == m_properties )
-        scheduledParent = (wxPGProperty*) NULL;
+        scheduledParent = NULL;
 
     if ( scheduledParent && !scheduledParent->IsCategory() )
     {
@@ -1555,16 +1647,18 @@ bool wxPropertyGridPageState::PrepareToAddItem( wxPGProperty* property,
         }
     }
 
-#ifdef __WXDEBUG__
+#if wxDEBUG_LEVEL
     // Warn for identical names in debug mode.
     if ( BaseGetPropertyByName(property->GetName()) &&
          (!scheduledParent || scheduledParent->IsCategory()) )
     {
-        wxLogError(wxT("wxPropertyGrid: Warning - item with name \"%s\" already exists."),
-            property->GetName().c_str());
+        wxFAIL_MSG(wxString::Format(
+            "wxPropertyGrid item with name \"%s\" already exists",
+            property->GetName()));
+
         wxPGGlobalVars->m_warnings++;
     }
-#endif
+#endif // wxDEBUG_LEVEL
 
     // Make sure nothing is selected.
     if ( propGrid )
@@ -1598,7 +1692,7 @@ wxPGProperty* wxPropertyGridPageState::DoAppend( wxPGProperty* property )
 {
     wxPropertyCategory* cur_cat = m_currentCategory;
     if ( property->IsCategory() )
-        cur_cat = (wxPropertyCategory*) NULL;
+        cur_cat = NULL;
 
     return DoInsert( cur_cat, -1, property );
 }
@@ -1621,6 +1715,9 @@ wxPGProperty* wxPropertyGridPageState::DoInsert( wxPGProperty* parent, int index
     if ( !res )
         return m_currentCategory;
 
+    bool parentIsRoot = parent->IsRoot();
+    bool parentIsCategory = parent->IsCategory();
+
     // Note that item must be added into current mode later.
 
     // If parent is wxParentProperty, just stick it in...
@@ -1633,42 +1730,34 @@ wxPGProperty* wxPropertyGridPageState::DoInsert( wxPGProperty* parent, int index
     //   1) Add to given category in given index.
     //   2) Add as last item in m_abcArray.
 
-    if ( !parent->IsCategory() && !parent->IsRoot() )
-    {
-        // Parent is wxParentingProperty: Just stick it in...
-        parent->AddChild2( property, index );
-    }
-    else
+    if ( m_properties == &m_regularArray )
     {
-        // Parent is Category or Root.
+        // We are currently in Categorized mode
 
-        if ( m_properties == &m_regularArray )
+        // Only add non-categories to m_abcArray.
+        if ( m_abcArray && !property->IsCategory() &&
+             (parentIsCategory || parentIsRoot) )
         {
-            // Categorized mode
-
-            // Only add non-categories to m_abcArray.
-            if ( m_abcArray && !property->IsCategory() )
-                m_abcArray->AddChild2( property, -1, false );
-
-            // Add to current mode.
-            parent->AddChild2( property, index );
-
+            m_abcArray->DoAddChild( property, -1, false );
         }
-        else
-        {
-            // Non-categorized mode.
-
-            if ( parent != m_properties )
-                // Parent is category.
-                parent->AddChild2( property, index, false );
-            else
-                // Parent is root.
-                m_regularArray.AddChild2( property, -1, false );
 
-            // Add to current mode (no categories).
-            if ( !property->IsCategory() )
-                m_abcArray->AddChild2( property, index );
-        }
+        // Add to current mode.
+        parent->DoAddChild( property, index, true );
+    }
+    else
+    {
+        // We are currently in Non-categorized/Alphabetic mode
+
+        if ( parentIsCategory )
+            // Parent is category.
+            parent->DoAddChild( property, index, false );
+        else if ( parentIsRoot )
+            // Parent is root.
+            m_regularArray.DoAddChild( property, -1, false );
+
+        // Add to current mode
+        if ( !property->IsCategory() )
+            m_abcArray->DoAddChild( property, index, true );
     }
 
     // category stuff
@@ -1682,7 +1771,7 @@ wxPGProperty* wxPropertyGridPageState::DoInsert( wxPGProperty* parent, int index
 
     // Only add name to hashmap if parent is root or category
     if ( property->m_name.length() &&
-        (parent->IsCategory() || parent->IsRoot()) )
+        (parentIsCategory || parentIsRoot) )
         m_dictName[property->m_name] = (void*) property;
 
     VirtualHeightChanged();
@@ -1712,6 +1801,25 @@ void wxPropertyGridPageState::DoDelete( wxPGProperty* item, bool doDelete )
     wxCHECK_RET( !parent->HasFlag(wxPG_PROP_AGGREGATE),
         wxT("wxPropertyGrid: Do not attempt to remove sub-properties.") );
 
+    wxASSERT( item->GetParentState() == this );
+
+    wxPropertyGrid* pg = GetGrid();
+
+    if ( DoIsPropertySelected(item) )
+    {
+        if ( pg && pg->GetState() == this )
+        {
+            pg->DoRemoveFromSelection(item,
+                wxPG_SEL_DELETING|wxPG_SEL_NOVALIDATE);
+        }
+        else
+        {
+            DoRemoveFromSelection(item);
+        }
+    }
+
+    item->SetFlag(wxPG_PROP_BEING_DELETED);
+
     // Delete children
     if ( item->GetChildCount() && !item->HasFlag(wxPG_PROP_AGGREGATE) )
     {
@@ -1719,7 +1827,7 @@ void wxPropertyGridPageState::DoDelete( wxPGProperty* item, bool doDelete )
         if ( item->IsCategory() )
         {
             if ( pwc == m_currentCategory )
-                m_currentCategory = (wxPropertyCategory*) NULL;
+                m_currentCategory = NULL;
         }
 
         item->DeleteChildren();
@@ -1777,10 +1885,14 @@ void wxPropertyGridPageState::DoDelete( wxPGProperty* item, bool doDelete )
         }
     }
 
-    if ( item->GetBaseName().length() && 
+    if ( item->GetBaseName().length() &&
          (parent->IsCategory() || parent->IsRoot()) )
         m_dictName.erase(item->GetBaseName());
 
+    // We need to clear parent grid's m_propHover, if it matches item
+    if ( pg && pg->m_propHover == item )
+        pg->m_propHover = NULL;
+
     // We can actually delete it now
     if ( doDelete )
         delete item;