Applied patch [ 929275 ] [wxOS2] Missing title bars.

[wxWidgets.git] / src / msw / treectrl.cpp

diff --git a/src/msw/treectrl.cpp b/src/msw/treectrl.cpp
index 01d81982851675e4d4cdd7a4d2aac8a8a47dd892..a488f9c547c203eadd43b50a047e7b2e55e4a981 100644 (file)
--- a/src/msw/treectrl.cpp
+++ b/src/msw/treectrl.cpp
@@ -97,7 +97,7 @@ static bool IsItemSelected(HWND hwndTV, HTREEITEM hItem)
     return (tvi.state & TVIS_SELECTED) != 0;
 }
 
     return (tvi.state & TVIS_SELECTED) != 0;
 }
 

-static void SelectItem(HWND hwndTV, HTREEITEM hItem, bool select = true)
+static bool SelectItem(HWND hwndTV, HTREEITEM hItem, bool select = true)

 {
     TV_ITEM tvi;
     tvi.mask = TVIF_STATE | TVIF_HANDLE;
 {
     TV_ITEM tvi;
     tvi.mask = TVIF_STATE | TVIF_HANDLE;


@@ -108,7 +108,10 @@ static void SelectItem(HWND hwndTV, HTREEITEM hItem, bool select = true)
     if ( TreeView_SetItem(hwndTV, &tvi) == -1 )
     {
         wxLogLastError(wxT("TreeView_SetItem"));
     if ( TreeView_SetItem(hwndTV, &tvi) == -1 )
     {
         wxLogLastError(wxT("TreeView_SetItem"));

+        return false;

     }
     }

+
+    return true;

 }
 
 static inline void UnselectItem(HWND hwndTV, HTREEITEM htItem)
 }
 
 static inline void UnselectItem(HWND hwndTV, HTREEITEM htItem)


@@ -470,7 +473,69 @@ private:
 // wxWin macros
 // ----------------------------------------------------------------------------
 
 // wxWin macros
 // ----------------------------------------------------------------------------
 

+#if wxUSE_EXTENDED_RTTI
+WX_DEFINE_FLAGS( wxTreeCtrlStyle )
+
+wxBEGIN_FLAGS( wxTreeCtrlStyle )
+    // 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(wxTR_EDIT_LABELS)
+    wxFLAGS_MEMBER(wxTR_NO_BUTTONS)
+    wxFLAGS_MEMBER(wxTR_HAS_BUTTONS)
+    wxFLAGS_MEMBER(wxTR_TWIST_BUTTONS)
+    wxFLAGS_MEMBER(wxTR_NO_LINES)
+    wxFLAGS_MEMBER(wxTR_FULL_ROW_HIGHLIGHT)
+    wxFLAGS_MEMBER(wxTR_LINES_AT_ROOT)
+    wxFLAGS_MEMBER(wxTR_HIDE_ROOT)
+    wxFLAGS_MEMBER(wxTR_ROW_LINES)
+    wxFLAGS_MEMBER(wxTR_HAS_VARIABLE_ROW_HEIGHT)
+    wxFLAGS_MEMBER(wxTR_SINGLE)
+    wxFLAGS_MEMBER(wxTR_MULTIPLE)
+    wxFLAGS_MEMBER(wxTR_EXTENDED)
+    wxFLAGS_MEMBER(wxTR_DEFAULT_STYLE)
+
+wxEND_FLAGS( wxTreeCtrlStyle )
+
+IMPLEMENT_DYNAMIC_CLASS_XTI(wxTreeCtrl, wxControl,"wx/treectrl.h")
+
+wxBEGIN_PROPERTIES_TABLE(wxTreeCtrl)
+    wxEVENT_PROPERTY( TextUpdated , wxEVT_COMMAND_TEXT_UPDATED , wxCommandEvent )
+    wxEVENT_RANGE_PROPERTY( TreeEvent , wxEVT_COMMAND_TREE_BEGIN_DRAG , wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK , wxTreeEvent )
+    wxPROPERTY_FLAGS( WindowStyle , wxTreeCtrlStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
+wxEND_PROPERTIES_TABLE()
+
+wxBEGIN_HANDLERS_TABLE(wxTreeCtrl)
+wxEND_HANDLERS_TABLE()
+
+wxCONSTRUCTOR_5( wxTreeCtrl , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
+#else

 IMPLEMENT_DYNAMIC_CLASS(wxTreeCtrl, wxControl)
 IMPLEMENT_DYNAMIC_CLASS(wxTreeCtrl, wxControl)

+#endif

 
 // ----------------------------------------------------------------------------
 // constants
 
 // ----------------------------------------------------------------------------
 // constants


@@ -612,6 +677,11 @@ bool wxTreeCtrl::Create(wxWindow *parent,
         wstyle |= TVS_CHECKBOXES;
 #endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
 
         wstyle |= TVS_CHECKBOXES;
 #endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
 

+#ifndef __WXWINCE__
+    // Need so that TVN_GETINFOTIP messages will be sent
+    wstyle |= TVS_INFOTIP;
+#endif
+

     // Create the tree control.
     if ( !MSWCreateControl(WC_TREEVIEW, wstyle) )
         return false;
     // Create the tree control.
     if ( !MSWCreateControl(WC_TREEVIEW, wstyle) )
         return false;


@@ -687,6 +757,8 @@ bool wxTreeCtrl::Create(wxWindow *parent,
 
     SetSize(pos.x, pos.y, size.x, size.y);
 
 
     SetSize(pos.x, pos.y, size.x, size.y);
 

+    wxSetCCUnicodeFormat(GetHwnd());
+

     return true;
 }
 
     return true;
 }
 


@@ -715,6 +787,18 @@ wxTreeCtrl::~wxTreeCtrl()
 // accessors
 // ----------------------------------------------------------------------------
 
 // accessors
 // ----------------------------------------------------------------------------
 

+/* static */ wxVisualAttributes
+wxTreeCtrl::GetClassDefaultAttributes(wxWindowVariant variant)
+{
+    wxVisualAttributes attrs = GetCompositeControlsDefaultAttributes(variant);
+
+    // common controls have their own default font
+    attrs.font = wxGetCCDefaultFont();
+
+    return attrs;
+}
+
+

 // simple wrappers which add error checking in debug mode
 
 bool wxTreeCtrl::DoGetItem(wxTreeViewItem* tvItem) const
 // simple wrappers which add error checking in debug mode
 
 bool wxTreeCtrl::DoGetItem(wxTreeViewItem* tvItem) const


@@ -1274,8 +1358,18 @@ bool wxTreeCtrl::IsVisible(const wxTreeItemId& item) const
     // the HTREEITEM with TVM_GETITEMRECT
     *(HTREEITEM *)&rect = HITEM(item);
 
     // the HTREEITEM with TVM_GETITEMRECT
     *(HTREEITEM *)&rect = HITEM(item);
 

-    // false means get item rect for the whole item, not only text
-    return SendMessage(GetHwnd(), TVM_GETITEMRECT, false, (LPARAM)&rect) != 0;
+    // true means to get rect for just the text, not the whole line
+    if ( !::SendMessage(GetHwnd(), TVM_GETITEMRECT, true, (LPARAM)&rect) )
+    {
+        // if TVM_GETITEMRECT returned false, then the item is definitely not
+        // visible (because its parent is not expanded)
+        return false;
+    }
+
+    // however if it returned true, the item might still be outside the
+    // currently visible part of the tree, test for it (notice that partly
+    // visible means visible here)
+    return rect.bottom > 0 && rect.top < GetClientSize().y;

 }
 
 bool wxTreeCtrl::ItemHasChildren(const wxTreeItemId& item) const
 }
 
 bool wxTreeCtrl::ItemHasChildren(const wxTreeItemId& item) const


@@ -1787,19 +1881,22 @@ void wxTreeCtrl::UnselectAll()
     }
 }
 
     }
 }
 

-void wxTreeCtrl::SelectItem(const wxTreeItemId& item)
+void wxTreeCtrl::SelectItem(const wxTreeItemId& item, bool select)

 {
     if ( m_windowStyle & wxTR_MULTIPLE )
     {
 #if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
         // selecting the item means checking it
 {
     if ( m_windowStyle & wxTR_MULTIPLE )
     {
 #if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
         // selecting the item means checking it

-        SetItemCheck(item);
+        SetItemCheck(item, select);

 #else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
 #else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE

-        ::SelectItem(GetHwnd(), HITEM(item));
+        ::SelectItem(GetHwnd(), HITEM(item), select);

 #endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
     }
     else
     {
 #endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
     }
     else
     {

+        wxASSERT_MSG( select,
+                      _T("SelectItem(false) works only for multiselect") );
+

         // inspite of the docs (MSDN Jan 99 edition), we don't seem to receive
         // the notification from the control (i.e. TVN_SELCHANG{ED|ING}), so
         // send them ourselves
         // inspite of the docs (MSDN Jan 99 edition), we don't seem to receive
         // the notification from the control (i.e. TVN_SELCHANG{ED|ING}), so
         // send them ourselves


@@ -1815,7 +1912,7 @@ void wxTreeCtrl::SelectItem(const wxTreeItemId& item)
             {
                 wxLogLastError(wxT("TreeView_SelectItem"));
             }
             {
                 wxLogLastError(wxT("TreeView_SelectItem"));
             }

-            else
+            else // ok

             {
                 event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED);
                 (void)GetEventHandler()->ProcessEvent(event);
             {
                 event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED);
                 (void)GetEventHandler()->ProcessEvent(event);


@@ -1825,6 +1922,16 @@ void wxTreeCtrl::SelectItem(const wxTreeItemId& item)
     }
 }
 
     }
 }
 

+void wxTreeCtrl::UnselectItem(const wxTreeItemId& item)
+{
+    SelectItem(item, false);
+}
+
+void wxTreeCtrl::ToggleItemSelection(const wxTreeItemId& item)
+{
+    SelectItem(item, !IsSelected(item));
+}
+

 void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item)
 {
     // no error return
 void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item)
 {
     // no error return


@@ -2045,10 +2152,10 @@ bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id)
 // only do it during dragging, minimize wxWin overhead (this is important for
 // WM_MOUSEMOVE as they're a lot of them) by catching Windows messages directly
 // instead of passing by wxWin events
 // only do it during dragging, minimize wxWin overhead (this is important for
 // WM_MOUSEMOVE as they're a lot of them) by catching Windows messages directly
 // instead of passing by wxWin events

-long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)

 {
     bool processed = false;
 {
     bool processed = false;

-    long rc = 0;
+    WXLRESULT rc = 0;

     bool isMultiple = (GetWindowStyle() & wxTR_MULTIPLE) != 0;
 
     if ( (nMsg >= WM_MOUSEFIRST) && (nMsg <= WM_MOUSELAST) )
     bool isMultiple = (GetWindowStyle() & wxTR_MULTIPLE) != 0;
 
     if ( (nMsg >= WM_MOUSEFIRST) && (nMsg <= WM_MOUSELAST) )


@@ -2062,10 +2169,10 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
         switch ( nMsg )
         {
             case WM_RBUTTONDOWN:
         switch ( nMsg )
         {
             case WM_RBUTTONDOWN:

-                // if the item we are about to right click on
-                // is not already select, remove the entire
-                // previous selection
-                if (!::IsItemSelected(GetHwnd(), htItem))
+                // if the item we are about to right click on is not already
+                // selected or if we click outside of any item, remove the
+                // entire previous selection
+                if ( !htItem || !::IsItemSelected(GetHwnd(), htItem) )

                 {
                     UnselectAll();
                 }
                 {
                     UnselectAll();
                 }


@@ -2085,7 +2192,7 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
                         SetFocus();
 
                         // toggle selected state
                         SetFocus();
 
                         // toggle selected state

-                        ToggleItemSelection(GetHwnd(), htItem);
+                        ::ToggleItemSelection(GetHwnd(), htItem);

 
                         ::SetFocus(GetHwnd(), htItem);
 
 
                         ::SetFocus(GetHwnd(), htItem);
 


@@ -2116,7 +2223,7 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
                     {
                         // avoid doing anything if we click on the only
                         // currently selected item
                     {
                         // avoid doing anything if we click on the only
                         // currently selected item

-                        
+

                         wxArrayTreeItemIds selections;
                         size_t count = GetSelections(selections);
                         if ( count == 0 ||
                         wxArrayTreeItemIds selections;
                         size_t count = GetSelections(selections);
                         if ( count == 0 ||


@@ -2127,7 +2234,7 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
                             // user clicked outside of the present selection.
                             // otherwise, perform the deselection on mouse-up.
                             // this allows multiple drag and drop to work.
                             // user clicked outside of the present selection.
                             // otherwise, perform the deselection on mouse-up.
                             // this allows multiple drag and drop to work.

-                            
+

                             if (IsItemSelected(GetHwnd(), htItem))
                             {
                                 ::SetFocus(GetHwnd(), htItem);
                             if (IsItemSelected(GetHwnd(), htItem))
                             {
                                 ::SetFocus(GetHwnd(), htItem);


@@ -2248,7 +2355,7 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
         {
             if ( bCtrl )
             {
         {
             if ( bCtrl )
             {

-                ToggleItemSelection(GetHwnd(), htSel);
+                ::ToggleItemSelection(GetHwnd(), htSel);

             }
             else
             {
             }
             else
             {


@@ -2383,17 +2490,34 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 
                 event.m_item = info->item.hItem;
                 event.m_label = info->item.pszText;
 
                 event.m_item = info->item.hItem;
                 event.m_label = info->item.pszText;

-                if (info->item.pszText == NULL)
-                {
-                    event.m_editCancelled = true;
-                }
-                 else
-                {
-                    event.m_editCancelled = false;
-                }
+                event.m_editCancelled = info->item.pszText == NULL;
+                break;
+            }
+
+#ifndef __WXWINCE__
+        // These *must* not be removed or TVN_GETINFOTIP will
+        // not be processed each time the mouse is moved
+        // and the tooltip will only ever update once.
+        case TTN_NEEDTEXTA:
+        case TTN_NEEDTEXTW:
+            {
+                *result = 0;
+

                 break;
             }
 
                 break;
             }
 

+        case TVN_GETINFOTIP:
+            {
+                eventType = wxEVT_COMMAND_TREE_ITEM_GETTOOLTIP;
+                NMTVGETINFOTIP *info = (NMTVGETINFOTIP*)lParam;
+
+                // Which item are we trying to get a tooltip for?
+                event.m_item = info->hItem;
+
+                break;
+            }
+#endif
+

         case TVN_GETDISPINFO:
             eventType = wxEVT_COMMAND_TREE_GET_INFO;
             // fall through
         case TVN_GETDISPINFO:
             eventType = wxEVT_COMMAND_TREE_GET_INFO;
             // fall through


@@ -2484,7 +2608,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
             }
             break;
 
             }
             break;
 

-        // NB: MSLU is broken and sends TVN_SELCHANGEDA instead of 
+        // NB: MSLU is broken and sends TVN_SELCHANGEDA instead of

         //     TVN_SELCHANGEDW in Unicode mode under Win98. Therefore
         //     we have to handle both messages:
         case TVN_SELCHANGEDA:
         //     TVN_SELCHANGEDW in Unicode mode under Win98. Therefore
         //     we have to handle both messages:
         case TVN_SELCHANGEDA:


@@ -2499,7 +2623,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                     eventType = wxEVT_COMMAND_TREE_SEL_CHANGING;
                 //else: already set above
 
                     eventType = wxEVT_COMMAND_TREE_SEL_CHANGING;
                 //else: already set above
 

-                if (hdr->code == TVN_SELCHANGINGW || 
+                if (hdr->code == TVN_SELCHANGINGW ||

                     hdr->code == TVN_SELCHANGEDW)
                 {
                     NM_TREEVIEWW* tv = (NM_TREEVIEWW *)lParam;
                     hdr->code == TVN_SELCHANGEDW)
                 {
                     NM_TREEVIEWW* tv = (NM_TREEVIEWW *)lParam;


@@ -2545,60 +2669,42 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 
                             wxTreeItemAttr * const attr = it->second;
 
 
                             wxTreeItemAttr * const attr = it->second;
 

-                            HFONT hFont;
-                            if ( attr->HasFont() )
-                            {
-                                hFont = GetHfontOf(attr->GetFont());
-                            }
-                            else
-                            {
-                                hFont = 0;
-                            }
-
-                            wxColour colText;
-                            if ( attr->HasTextColour() )
-                            {
-                                colText = attr->GetTextColour();
-                            }
-                            else
-                            {
-                                colText = GetForegroundColour();
-                            }
-
-                            // selection colours should override ours
-                            if ( nmcd.uItemState & CDIS_SELECTED )
-                            {
-                                lptvcd->clrTextBk =
-                                    ::GetSysColor(COLOR_HIGHLIGHT);
-                                lptvcd->clrText =
-                                    ::GetSysColor(COLOR_HIGHLIGHTTEXT);
-                            }
-                            else // !selected
+                            // selection colours should override ours,
+                            // otherwise it is too confusing ot the user
+                            if ( !(nmcd.uItemState & CDIS_SELECTED) )

                             {
                                 wxColour colBack;
                                 if ( attr->HasBackgroundColour() )
                                 {
                                     colBack = attr->GetBackgroundColour();
                             {
                                 wxColour colBack;
                                 if ( attr->HasBackgroundColour() )
                                 {
                                     colBack = attr->GetBackgroundColour();

+                                    lptvcd->clrTextBk = wxColourToRGB(colBack);

                                 }
                                 }

-                                else
+                            }
+
+                            // but we still want to keep the special foreground
+                            // colour when we don't have focus (we can't keep
+                            // it when we do, it would usually be unreadable on
+                            // the almost inverted bg colour...)
+                            if ( !(nmcd.uItemState & CDIS_SELECTED) ||
+                                    FindFocus() != this )
+                            {
+                                wxColour colText;
+                                if ( attr->HasTextColour() )

                                 {
                                 {

-                                    colBack = GetBackgroundColour();
+                                    colText = attr->GetTextColour();
+                                    lptvcd->clrText = wxColourToRGB(colText);

                                 }
                                 }

-
-                                lptvcd->clrText = wxColourToRGB(colText);
-                                lptvcd->clrTextBk = wxColourToRGB(colBack);

                             }
 
                             }
 

-                            // note that if we wanted to set colours for
-                            // individual columns (subitems), we would have
-                            // returned CDRF_NOTIFYSUBITEMREDRAW from here
-                            if ( hFont )
+                            if ( attr->HasFont() )

                             {
                             {

+                                HFONT hFont = GetHfontOf(attr->GetFont());
+

                                 ::SelectObject(nmcd.hdc, hFont);
 
                                 *result = CDRF_NEWFONT;
                             }
                                 ::SelectObject(nmcd.hdc, hFont);
 
                                 *result = CDRF_NEWFONT;
                             }

-                            else
+                            else // no specific font

                             {
                                 *result = CDRF_DODEFAULT;
                             }
                             {
                                 *result = CDRF_DODEFAULT;
                             }


@@ -2723,7 +2829,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 HWND hText = TreeView_GetEditControl(GetHwnd());
                 if(hText != NULL)
                 {
                 HWND hText = TreeView_GetEditControl(GetHwnd());
                 if(hText != NULL)
                 {

-                    // MBN: if m_textCtrl already has an HWND, it is a stale 
+                    // MBN: if m_textCtrl already has an HWND, it is a stale

                     // pointer from a previous edit (because the user
                     // didn't modify the label before dismissing the control,
                     // and TVN_ENDLABELEDIT was not sent), so delete it
                     // pointer from a previous edit (because the user
                     // didn't modify the label before dismissing the control,
                     // and TVN_ENDLABELEDIT was not sent), so delete it


@@ -2758,6 +2864,18 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
             DeleteTextCtrl();
             break;
 
             DeleteTextCtrl();
             break;
 

+#ifndef __WXWINCE__
+         case TVN_GETINFOTIP:
+            {
+                // If the user permitted a tooltip change, change it
+                if (event.IsAllowed())
+                {
+                    SetToolTip(event.m_label);
+                }
+            }
+            break;
+#endif
+

         case TVN_SELCHANGING:
         case TVN_ITEMEXPANDING:
             // return true to prevent the action from happening
         case TVN_SELCHANGING:
         case TVN_ITEMEXPANDING:
             // return true to prevent the action from happening


@@ -2834,7 +2952,7 @@ void wxTreeCtrl::SetState(const wxTreeItemId& node, int state)
     // Select the specified state, or -1 == cycle to the next one.
     if ( state == -1 )
     {
     // Select the specified state, or -1 == cycle to the next one.
     if ( state == -1 )
     {

-        TreeView_GetItem(GetHwnd(), &tvi); 
+        TreeView_GetItem(GetHwnd(), &tvi);

 
         state = STATEIMAGEMASKTOINDEX(tvi.state) + 1;
         if ( state == m_imageListState->GetImageCount() )
 
         state = STATEIMAGEMASKTOINDEX(tvi.state) + 1;
         if ( state == m_imageListState->GetImageCount() )


@@ -2844,7 +2962,7 @@ void wxTreeCtrl::SetState(const wxTreeItemId& node, int state)
     wxCHECK_RET( state < m_imageListState->GetImageCount(),
                  _T("wxTreeCtrl::SetState(): item index out of bounds") );
 
     wxCHECK_RET( state < m_imageListState->GetImageCount(),
                  _T("wxTreeCtrl::SetState(): item index out of bounds") );
 

-    tvi.state = INDEXTOSTATEIMAGEMASK(state); 
+    tvi.state = INDEXTOSTATEIMAGEMASK(state);

 
     TreeView_SetItem(GetHwnd(), &tvi);
 }
 
     TreeView_SetItem(GetHwnd(), &tvi);
 }


@@ -2855,7 +2973,7 @@ int wxTreeCtrl::GetState(const wxTreeItemId& node)
     tvi.hItem = (HTREEITEM)node.m_pItem;
     tvi.mask = TVIF_STATE;
     tvi.stateMask = TVIS_STATEIMAGEMASK;
     tvi.hItem = (HTREEITEM)node.m_pItem;
     tvi.mask = TVIF_STATE;
     tvi.stateMask = TVIS_STATEIMAGEMASK;

-    TreeView_GetItem(GetHwnd(), &tvi); 
+    TreeView_GetItem(GetHwnd(), &tvi);

 
     return STATEIMAGEMASKTOINDEX(tvi.state);
 }
 
     return STATEIMAGEMASKTOINDEX(tvi.state);
 }