check that the version of __sync_sub_and_fetch that returns a value is supported...

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

diff --git a/src/msw/treectrl.cpp b/src/msw/treectrl.cpp
index c5c49719b435cfa2e9799b39d09982de71770342..8c48543587bd7de3c94a014eb746e30101b5443b 100644 (file)
--- a/src/msw/treectrl.cpp
+++ b/src/msw/treectrl.cpp
@@ -17,10 +17,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
 // headers
 // ----------------------------------------------------------------------------
 

-#ifdef __GNUG__
-    #pragma implementation "treectrl.h"
-#endif
-

 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 


@@ -30,97 +26,81 @@
 
 #if wxUSE_TREECTRL
 
 
 #if wxUSE_TREECTRL
 

+#include "wx/treectrl.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
+    #include "wx/msw/missing.h"
+    #include "wx/dynarray.h"
+    #include "wx/log.h"
+    #include "wx/app.h"
+    #include "wx/settings.h"
+#endif
+

 #include "wx/msw/private.h"
 
 // Set this to 1 to be _absolutely_ sure that repainting will work for all
 // comctl32.dll versions
 #define wxUSE_COMCTL32_SAFELY 0
 
 #include "wx/msw/private.h"
 
 // Set this to 1 to be _absolutely_ sure that repainting will work for all
 // comctl32.dll versions
 #define wxUSE_COMCTL32_SAFELY 0
 

-// Mingw32 is a bit mental even though this is done in winundef
-#ifdef GetFirstChild
-    #undef GetFirstChild
-#endif
-
-#ifdef GetNextSibling
-    #undef GetNextSibling
-#endif
-
-#if defined(__WIN95__)
-
-#include "wx/app.h"
-#include "wx/log.h"
-#include "wx/dynarray.h"

 #include "wx/imaglist.h"
 #include "wx/imaglist.h"

-#include "wx/settings.h"
-#include "wx/msw/treectrl.h"

 #include "wx/msw/dragimag.h"
 
 #include "wx/msw/dragimag.h"
 

-#ifdef __GNUWIN32_OLD__
-    #include "wx/msw/gnuwin32/extra.h"
-#endif
+// macros to hide the cast ugliness
+// --------------------------------

 
 

-#if defined(__WIN95__) && !((defined(__GNUWIN32_OLD__) || defined(__TWIN32__)) && !defined(__CYGWIN10__))
-    #include <commctrl.h>
-#endif
+// get HTREEITEM from wxTreeItemId
+#define HITEM(item)     ((HTREEITEM)(((item).m_pItem)))

 
 

-// Bug in headers, sometimes
-#ifndef TVIS_FOCUSED
-    #define TVIS_FOCUSED            0x0001
-#endif

 
 

-#ifndef TV_FIRST
-    #define TV_FIRST                0x1100
-#endif
+// older SDKs are missing these
+#ifndef TVN_ITEMCHANGINGA

 
 

-#ifndef TVS_CHECKBOXES
-    #define TVS_CHECKBOXES          0x0100
-#endif
+#define TVN_ITEMCHANGINGA (TVN_FIRST-16)
+#define TVN_ITEMCHANGINGW (TVN_FIRST-17)

 
 

-#ifndef TVS_FULLROWSELECT
-    #define TVS_FULLROWSELECT       0x1000
-#endif
+typedef struct tagNMTVITEMCHANGE
+{
+    NMHDR hdr;
+    UINT uChanged;
+    HTREEITEM hItem;
+    UINT uStateNew;
+    UINT uStateOld;
+    LPARAM lParam;
+} NMTVITEMCHANGE;

 
 

-// old headers might miss these messages (comctl32.dll 4.71+ only)
-#ifndef TVM_SETBKCOLOR
-    #define TVM_SETBKCOLOR          (TV_FIRST + 29)
-    #define TVM_SETTEXTCOLOR        (TV_FIRST + 30)

 #endif
 
 #endif
 

-// a macro to hide the ugliness of nested casts
-#define HITEM(item)     (HTREEITEM)(WXHTREEITEM)(item)

 
 

-// the native control doesn't support multiple selections under MSW and we
-// have 2 ways to emulate them: either using TVS_CHECKBOXES style and let
-// checkboxes be the selection status (checked == selected) or by really
-// emulating everything, i.e. intercepting mouse and key events &c. The first
-// approach is much easier but doesn't work with comctl32.dll < 4.71 and also
-// looks quite ugly.
-#define wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE 0
+// this global variable is used on vista systems for preventing unwanted
+// item state changes in the vista tree control.  It is only used in
+// multi-select mode on vista systems.

 
 

-// ----------------------------------------------------------------------------
-// private functions
-// ----------------------------------------------------------------------------
+static HTREEITEM gs_unlockItem = NULL;

 
 

-// wrapper for TreeView_HitTest
-static HTREEITEM GetItemFromPoint(HWND hwndTV, int x, int y)
+class TreeItemUnlocker

 {
 {

-    TV_HITTESTINFO tvht;
-    tvht.pt.x = x;
-    tvht.pt.y = y;
+public:
+    TreeItemUnlocker(HTREEITEM item) { gs_unlockItem = item; }
+    ~TreeItemUnlocker() { gs_unlockItem = NULL; }
+};

 
 

-    return (HTREEITEM)TreeView_HitTest(hwndTV, &tvht);
-}

 
 

-#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+// ----------------------------------------------------------------------------
+// private functions
+// ----------------------------------------------------------------------------

 
 // wrappers for TreeView_GetItem/TreeView_SetItem
 static bool IsItemSelected(HWND hwndTV, HTREEITEM hItem)
 {
 
 // wrappers for TreeView_GetItem/TreeView_SetItem
 static bool IsItemSelected(HWND hwndTV, HTREEITEM hItem)
 {

+

     TV_ITEM tvi;
     tvi.mask = TVIF_STATE | TVIF_HANDLE;
     tvi.stateMask = TVIS_SELECTED;
     tvi.hItem = hItem;
 
     TV_ITEM tvi;
     tvi.mask = TVIF_STATE | TVIF_HANDLE;
     tvi.stateMask = TVIS_SELECTED;
     tvi.hItem = hItem;
 

+    TreeItemUnlocker unlocker(hItem);
+

     if ( !TreeView_GetItem(hwndTV, &tvi) )
     {
         wxLogLastError(wxT("TreeView_GetItem"));
     if ( !TreeView_GetItem(hwndTV, &tvi) )
     {
         wxLogLastError(wxT("TreeView_GetItem"));


@@ -129,7 +109,7 @@ 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;


@@ -137,20 +117,20 @@ static void SelectItem(HWND hwndTV, HTREEITEM hItem, bool select = TRUE)
     tvi.state = select ? TVIS_SELECTED : 0;
     tvi.hItem = hItem;
 
     tvi.state = select ? TVIS_SELECTED : 0;
     tvi.hItem = hItem;
 

+    TreeItemUnlocker unlocker(hItem);
+

     if ( TreeView_SetItem(hwndTV, &tvi) == -1 )
     {
         wxLogLastError(wxT("TreeView_SetItem"));
     if ( TreeView_SetItem(hwndTV, &tvi) == -1 )
     {
         wxLogLastError(wxT("TreeView_SetItem"));

+        return false;

     }
     }

-}

 
 

-static inline void UnselectItem(HWND hwndTV, HTREEITEM htItem)
-{
-    SelectItem(hwndTV, htItem, FALSE);
+    return true;

 }
 
 }
 

-static inline void ToggleItemSelection(HWND hwndTV, HTREEITEM htItem)
+static inline void UnselectItem(HWND hwndTV, HTREEITEM htItem)

 {
 {

-    SelectItem(hwndTV, htItem, !IsItemSelected(hwndTV, htItem));
+    SelectItem(hwndTV, htItem, false);

 }
 
 // helper function which selects all items in a range and, optionally,
 }
 
 // helper function which selects all items in a range and, optionally,


@@ -158,10 +138,10 @@ static inline void ToggleItemSelection(HWND hwndTV, HTREEITEM htItem)
 static void SelectRange(HWND hwndTV,
                         HTREEITEM htFirst,
                         HTREEITEM htLast,
 static void SelectRange(HWND hwndTV,
                         HTREEITEM htFirst,
                         HTREEITEM htLast,

-                        bool unselectOthers = TRUE)
+                        bool unselectOthers = true)

 {
     // find the first (or last) item and select it
 {
     // find the first (or last) item and select it

-    bool cont = TRUE;
+    bool cont = true;

     HTREEITEM htItem = (HTREEITEM)TreeView_GetRoot(hwndTV);
     while ( htItem && cont )
     {
     HTREEITEM htItem = (HTREEITEM)TreeView_GetRoot(hwndTV);
     while ( htItem && cont )
     {


@@ -172,7 +152,7 @@ static void SelectRange(HWND hwndTV,
                 SelectItem(hwndTV, htItem);
             }
 
                 SelectItem(hwndTV, htItem);
             }
 

-            cont = FALSE;
+            cont = false;

         }
         else
         {
         }
         else
         {


@@ -221,60 +201,57 @@ static void SelectRange(HWND hwndTV,
 // helper function which tricks the standard control into changing the focused
 // item without changing anything else (if someone knows why Microsoft doesn't
 // allow to do it by just setting TVIS_FOCUSED flag, please tell me!)
 // helper function which tricks the standard control into changing the focused
 // item without changing anything else (if someone knows why Microsoft doesn't
 // allow to do it by just setting TVIS_FOCUSED flag, please tell me!)

-static void SetFocus(HWND hwndTV, HTREEITEM htItem)
+//
+// returns true if the focus was changed, false if the given item was already
+// the focused one
+static bool SetFocus(HWND hwndTV, HTREEITEM htItem)

 {
     // the current focus
     HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(hwndTV);
 
 {
     // the current focus
     HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(hwndTV);
 

+    if ( htItem == htFocus )
+        return false;
+

     if ( htItem )
     {
     if ( htItem )
     {

-        // set the focus
-        if ( htItem != htFocus )
-        {
-            // remember the selection state of the item
-            bool wasSelected = IsItemSelected(hwndTV, htItem);
+        // remember the selection state of the item
+        bool wasSelected = IsItemSelected(hwndTV, htItem);

 
 

-            if ( htFocus && IsItemSelected(hwndTV, htFocus) )
-            {
-                // prevent the tree from unselecting the old focus which it
-                // would do by default (TreeView_SelectItem unselects the
-                // focused item)
-                TreeView_SelectItem(hwndTV, 0);
-                SelectItem(hwndTV, htFocus);
-            }
+        if ( htFocus && IsItemSelected(hwndTV, htFocus) )
+        {
+            // prevent the tree from unselecting the old focus which it
+            // would do by default (TreeView_SelectItem unselects the
+            // focused item)
+            TreeView_SelectItem(hwndTV, 0);
+            SelectItem(hwndTV, htFocus);
+        }

 
 

-            TreeView_SelectItem(hwndTV, htItem);
+        TreeView_SelectItem(hwndTV, htItem);

 
 

-            if ( !wasSelected )
-            {
-                // need to clear the selection which TreeView_SelectItem() gave
-                // us
-                UnselectItem(hwndTV, htItem);
-            }
-            //else: was selected, still selected - ok
+        if ( !wasSelected )
+        {
+            // need to clear the selection which TreeView_SelectItem() gave
+            // us
+            UnselectItem(hwndTV, htItem);

         }
         }

-        //else: nothing to do, focus already there
+        //else: was selected, still selected - ok

     }
     }

-    else
+    else // reset focus

     {
     {

-        if ( htFocus )
-        {
-            bool wasFocusSelected = IsItemSelected(hwndTV, htFocus);
+        bool wasFocusSelected = IsItemSelected(hwndTV, htFocus);

 
 

-            // just clear the focus
-            TreeView_SelectItem(hwndTV, 0);
+        // just clear the focus
+        TreeView_SelectItem(hwndTV, 0);

 
 

-            if ( wasFocusSelected )
-            {
-                // restore the selection state
-                SelectItem(hwndTV, htFocus);
-            }
+        if ( wasFocusSelected )
+        {
+            // restore the selection state
+            SelectItem(hwndTV, htFocus);

         }
         }

-        //else: nothing to do, no focus already

     }
     }

-}

 
 

-#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+    return true;
+}

 
 // ----------------------------------------------------------------------------
 // private classes
 
 // ----------------------------------------------------------------------------
 // private classes


@@ -291,6 +268,8 @@ struct wxTreeViewItem : public TV_ITEM
                    UINT mask_,                  // fields which are valid
                    UINT stateMask_ = 0)         // for TVIF_STATE only
     {
                    UINT mask_,                  // fields which are valid
                    UINT stateMask_ = 0)         // for TVIF_STATE only
     {

+        wxZeroMemory(*this);
+

         // hItem member is always valid
         mask = mask_ | TVIF_HANDLE;
         stateMask = stateMask_;
         // hItem member is always valid
         mask = mask_ | TVIF_HANDLE;
         stateMask = stateMask_;


@@ -298,12 +277,138 @@ struct wxTreeViewItem : public TV_ITEM
     }
 };
 
     }
 };
 

+// ----------------------------------------------------------------------------
+// This class is our userdata/lParam for the TV_ITEMs stored in the treeview.
+//
+// We need this for a couple of reasons:
+//
+// 1) This class is needed for support of different images: the Win32 common
+// control natively supports only 2 images (the normal one and another for the
+// selected state). We wish to provide support for 2 more of them for folder
+// items (i.e. those which have children): for expanded state and for expanded
+// selected state. For this we use this structure to store the additional items
+// images.
+//
+// 2) This class is also needed to hold the HITEM so that we can sort
+// it correctly in the MSW sort callback.
+//
+// In addition it makes other workarounds such as this easier and helps
+// simplify the code.
+// ----------------------------------------------------------------------------
+
+class wxTreeItemParam
+{
+public:
+    wxTreeItemParam()
+    {
+        m_data = NULL;
+
+        for ( size_t n = 0; n < WXSIZEOF(m_images); n++ )
+        {
+            m_images[n] = -1;
+        }
+    }
+
+    // dtor deletes the associated data as well
+    virtual ~wxTreeItemParam() { delete m_data; }
+
+    // accessors
+        // get the real data associated with the item
+    wxTreeItemData *GetData() const { return m_data; }
+        // change it
+    void SetData(wxTreeItemData *data) { m_data = data; }
+
+        // do we have such image?
+    bool HasImage(wxTreeItemIcon which) const { return m_images[which] != -1; }
+        // get image, falling back to the other images if this one is not
+        // specified
+    int GetImage(wxTreeItemIcon which) const
+    {
+        int image = m_images[which];
+        if ( image == -1 )
+        {
+            switch ( which )
+            {
+                case wxTreeItemIcon_SelectedExpanded:
+                    image = GetImage(wxTreeItemIcon_Expanded);
+                    if ( image != -1 )
+                        break;
+                    //else: fall through
+
+                case wxTreeItemIcon_Selected:
+                case wxTreeItemIcon_Expanded:
+                    image = GetImage(wxTreeItemIcon_Normal);
+                    break;
+
+                case wxTreeItemIcon_Normal:
+                    // no fallback
+                    break;
+
+                default:
+                    wxFAIL_MSG( _T("unsupported wxTreeItemIcon value") );
+            }
+        }
+
+        return image;
+    }
+        // change the given image
+    void SetImage(int image, wxTreeItemIcon which) { m_images[which] = image; }
+
+        // get item
+    const wxTreeItemId& GetItem() const { return m_item; }
+        // set item
+    void SetItem(const wxTreeItemId& item) { m_item = item; }
+
+protected:
+    // all the images associated with the item
+    int m_images[wxTreeItemIcon_Max];
+
+    // item for sort callbacks
+    wxTreeItemId m_item;
+
+    // the real client data
+    wxTreeItemData *m_data;
+
+    DECLARE_NO_COPY_CLASS(wxTreeItemParam)
+};
+
+// wxVirutalNode is used in place of a single root when 'hidden' root is
+// specified.
+class wxVirtualNode : public wxTreeViewItem
+{
+public:
+    wxVirtualNode(wxTreeItemParam *param)
+        : wxTreeViewItem(TVI_ROOT, 0)
+    {
+        m_param = param;
+    }
+
+    ~wxVirtualNode()
+    {
+        delete m_param;
+    }
+
+    wxTreeItemParam *GetParam() const { return m_param; }
+    void SetParam(wxTreeItemParam *param) { delete m_param; m_param = param; }
+
+private:
+    wxTreeItemParam *m_param;
+
+    DECLARE_NO_COPY_CLASS(wxVirtualNode)
+};
+

 #ifdef __VISUALC__
 #pragma warning( default : 4097 )
 #endif
 
 #ifdef __VISUALC__
 #pragma warning( default : 4097 )
 #endif
 

+// a macro to get the virtual root, returns NULL if none
+#define GET_VIRTUAL_ROOT() ((wxVirtualNode *)m_pVirtualRoot)
+
+// returns true if the item is the virtual root
+#define IS_VIRTUAL_ROOT(item) (HITEM(item) == TVI_ROOT)
+

 // a class which encapsulates the tree traversal logic: it vists all (unless
 // a class which encapsulates the tree traversal logic: it vists all (unless

-// OnVisit() returns FALSE) items under the given one
+// OnVisit() returns false) items under the given one

 class wxTreeTraversal
 {
 public:
 class wxTreeTraversal
 {
 public:


@@ -312,13 +417,18 @@ public:
         m_tree = tree;
     }
 
         m_tree = tree;
     }
 

+    // give it a virtual dtor: not really needed as the class is never used
+    // polymorphically and not even allocated on heap at all, but this is safer
+    // (in case it ever is) and silences the compiler warnings for now
+    virtual ~wxTreeTraversal() { }
+

     // do traverse the tree: visit all items (recursively by default) under the
     // do traverse the tree: visit all items (recursively by default) under the

-    // given one; return TRUE if all items were traversed or FALSE if the
-    // traversal was aborted because OnVisit returned FALSE
-    bool DoTraverse(const wxTreeItemId& root, bool recursively = TRUE);
+    // given one; return true if all items were traversed or false if the
+    // traversal was aborted because OnVisit returned false
+    bool DoTraverse(const wxTreeItemId& root, bool recursively = true);

 
     // override this function to do whatever is needed for each item, return
 
     // override this function to do whatever is needed for each item, return

-    // FALSE to stop traversing
+    // false to stop traversing

     virtual bool OnVisit(const wxTreeItemId& item) = 0;
 
 protected:
     virtual bool OnVisit(const wxTreeItemId& item) = 0;
 
 protected:


@@ -328,6 +438,8 @@ private:
     bool Traverse(const wxTreeItemId& root, bool recursively);
 
     const wxTreeCtrl *m_tree;
     bool Traverse(const wxTreeItemId& root, bool recursively);
 
     const wxTreeCtrl *m_tree;

+
+    DECLARE_NO_COPY_CLASS(wxTreeTraversal)

 };
 
 // internal class for getting the selected items
 };
 
 // internal class for getting the selected items


@@ -340,27 +452,34 @@ public:
         {
             m_selections.Empty();
 
         {
             m_selections.Empty();
 

-            DoTraverse(tree->GetRootItem());
+            if (tree->GetCount() > 0)
+                DoTraverse(tree->GetRootItem());

         }
 
     virtual bool OnVisit(const wxTreeItemId& item)
     {
         }
 
     virtual bool OnVisit(const wxTreeItemId& item)
     {

-#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
-        if ( GetTree()->IsItemChecked(item) )
-#else
-        if ( ::IsItemSelected(GetHwndOf(GetTree()), HITEM(item)) )
-#endif
+        const wxTreeCtrl * const tree = GetTree();
+
+        // can't visit a virtual node.
+        if ( (tree->GetRootItem() == item) && tree->HasFlag(wxTR_HIDE_ROOT) )
+        {
+            return true;
+        }
+
+        if ( ::IsItemSelected(GetHwndOf(tree), HITEM(item)) )

         {
             m_selections.Add(item);
         }
 
         {
             m_selections.Add(item);
         }
 

-        return TRUE;
+        return true;

     }
 
     size_t GetCount() const { return m_selections.GetCount(); }
 
 private:
     wxArrayTreeItemIds& m_selections;
     }
 
     size_t GetCount() const { return m_selections.GetCount(); }
 
 private:
     wxArrayTreeItemIds& m_selections;

+
+    DECLARE_NO_COPY_CLASS(TraverseSelections)

 };
 
 // internal class for counting tree items
 };
 
 // internal class for counting tree items


@@ -381,81 +500,86 @@ public:
     {
         m_count++;
 
     {
         m_count++;
 

-        return TRUE;
+        return true;

     }
 
     size_t GetCount() const { return m_count; }
 
 private:
     size_t m_count;
     }
 
     size_t GetCount() const { return m_count; }
 
 private:
     size_t m_count;

+
+    DECLARE_NO_COPY_CLASS(TraverseCounter)

 };
 
 // ----------------------------------------------------------------------------
 };
 
 // ----------------------------------------------------------------------------

-// This class is needed for support of different images: the Win32 common
-// control natively supports only 2 images (the normal one and another for the
-// selected state). We wish to provide support for 2 more of them for folder
-// items (i.e. those which have children): for expanded state and for expanded
-// selected state. For this we use this structure to store the additional items
-// images.
-//
-// There is only one problem with this: when we retrieve the item's data, we
-// don't know whether we get a pointer to wxTreeItemData or
-// wxTreeItemIndirectData. So we always set the item id to an invalid value
-// in this class and the code using the client data checks for it and retrieves
-// the real client data in this case.
+// wxWin macros

 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 

-class wxTreeItemIndirectData : public wxTreeItemData
-{
-public:
-    // ctor associates this data with the item and the real item data becomes
-    // available through our GetData() method
-    wxTreeItemIndirectData(wxTreeCtrl *tree, const wxTreeItemId& item)
-    {
-        for ( size_t n = 0; n < WXSIZEOF(m_images); n++ )
-        {
-            m_images[n] = -1;
-        }
-
-        // save the old data
-        m_data = tree->GetItemData(item);
-
-        // and set ourselves as the new one
-        tree->SetIndirectItemData(item, this);
-
-        // we must have the invalid value for the item
-        m_pItem = 0l;
-    }
-
-    // dtor deletes the associated data as well
-    virtual ~wxTreeItemIndirectData() { delete m_data; }
-
-    // accessors
-        // get the real data associated with the item
-    wxTreeItemData *GetData() const { return m_data; }
-        // change it
-    void SetData(wxTreeItemData *data) { m_data = data; }
+#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)
+#if WXWIN_COMPATIBILITY_2_8
+    wxFLAGS_MEMBER(wxTR_EXTENDED)
+#endif
+    wxFLAGS_MEMBER(wxTR_DEFAULT_STYLE)

 
 

-        // do we have such image?
-    bool HasImage(wxTreeItemIcon which) const { return m_images[which] != -1; }
-        // get image
-    int GetImage(wxTreeItemIcon which) const { return m_images[which]; }
-        // change it
-    void SetImage(int image, wxTreeItemIcon which) { m_images[which] = image; }
+wxEND_FLAGS( wxTreeCtrlStyle )

 
 

-private:
-    // all the images associated with the item
-    int m_images[wxTreeItemIcon_Max];
+IMPLEMENT_DYNAMIC_CLASS_XTI(wxTreeCtrl, wxControl,"wx/treectrl.h")

 
 

-    // the real client data
-    wxTreeItemData *m_data;
-};
+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()

 
 

-// ----------------------------------------------------------------------------
-// wxWin macros
-// ----------------------------------------------------------------------------
+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


@@ -500,28 +624,28 @@ static /* const */ wxEventType gs_expandEvents[IDX_WHAT_MAX][IDX_HOW_MAX];
 bool wxTreeTraversal::DoTraverse(const wxTreeItemId& root, bool recursively)
 {
     if ( !OnVisit(root) )
 bool wxTreeTraversal::DoTraverse(const wxTreeItemId& root, bool recursively)
 {
     if ( !OnVisit(root) )

-        return FALSE;
+        return false;

 
     return Traverse(root, recursively);
 }
 
 bool wxTreeTraversal::Traverse(const wxTreeItemId& root, bool recursively)
 {
 
     return Traverse(root, recursively);
 }
 
 bool wxTreeTraversal::Traverse(const wxTreeItemId& root, bool recursively)
 {

-    long cookie;
+    wxTreeItemIdValue cookie;

     wxTreeItemId child = m_tree->GetFirstChild(root, cookie);
     while ( child.IsOk() )
     {
         // depth first traversal
     wxTreeItemId child = m_tree->GetFirstChild(root, cookie);
     while ( child.IsOk() )
     {
         // depth first traversal

-        if ( recursively && !Traverse(child, TRUE) )
-            return FALSE;
+        if ( recursively && !Traverse(child, true) )
+            return false;

 
         if ( !OnVisit(child) )
 
         if ( !OnVisit(child) )

-            return FALSE;
+            return false;

 
         child = m_tree->GetNextChild(root, cookie);
     }
 
 
         child = m_tree->GetNextChild(root, cookie);
     }
 

-    return TRUE;
+    return true;

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -530,13 +654,12 @@ bool wxTreeTraversal::Traverse(const wxTreeItemId& root, bool recursively)
 
 void wxTreeCtrl::Init()
 {
 
 void wxTreeCtrl::Init()
 {

-    m_imageListNormal = NULL;
-    m_imageListState = NULL;
-    m_ownsImageListNormal = m_ownsImageListState = FALSE;

     m_textCtrl = NULL;
     m_textCtrl = NULL;

-    m_hasAnyAttr = FALSE;
+    m_hasAnyAttr = false;
+#if wxUSE_DRAGIMAGE

     m_dragImage = NULL;
     m_dragImage = NULL;

-    m_htSelStart = 0;
+#endif
+    m_pVirtualRoot = NULL;

 
     // initialize the global array of events now as it can't be done statically
     // with the wxEVT_XXX values being allocated during run-time only
 
     // initialize the global array of events now as it can't be done statically
     // with the wxEVT_XXX values being allocated during run-time only


@@ -556,14 +679,15 @@ bool wxTreeCtrl::Create(wxWindow *parent,
 {
     Init();
 
 {
     Init();
 

-    if ( !CreateControl(parent, id, pos, size, style, validator, name) )
-        return FALSE;
+    if ( (style & wxBORDER_MASK) == wxBORDER_DEFAULT )
+        style |= wxBORDER_SUNKEN;

 
 

-    DWORD wstyle = WS_VISIBLE | WS_CHILD | WS_TABSTOP |
-                   TVS_SHOWSELALWAYS;
+    if ( !CreateControl(parent, id, pos, size, style, validator, name) )
+        return false;

 
 

-    if ( m_windowStyle & wxCLIP_SIBLINGS )
-        wstyle |= WS_CLIPSIBLINGS;
+    WXDWORD exStyle = 0;
+    DWORD wstyle = MSWGetStyle(m_windowStyle, & exStyle);
+    wstyle |= WS_TABSTOP | TVS_SHOWSELALWAYS;

 
     if ((m_windowStyle & wxTR_NO_LINES) == 0)
         wstyle |= TVS_HASLINES;
 
     if ((m_windowStyle & wxTR_NO_LINES) == 0)
         wstyle |= TVS_HASLINES;


@@ -578,27 +702,18 @@ bool wxTreeCtrl::Create(wxWindow *parent,
 
     if ( m_windowStyle & wxTR_FULL_ROW_HIGHLIGHT )
     {
 
     if ( m_windowStyle & wxTR_FULL_ROW_HIGHLIGHT )
     {

-        if ( wxTheApp->GetComCtl32Version() >= 471 )
+        if ( wxApp::GetComCtl32Version() >= 471 )

             wstyle |= TVS_FULLROWSELECT;
     }
 
             wstyle |= TVS_FULLROWSELECT;
     }
 

-    // using TVS_CHECKBOXES for emulation of a multiselection tree control
-    // doesn't work without the new enough headers
-#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE && \
-    !defined( __GNUWIN32_OLD__ ) && \
-    !defined( __BORLANDC__ ) && \
-    !defined( __WATCOMC__ ) && \
-    (!defined(__VISUALC__) || (__VISUALC__ > 1010))
-
-    // we emulate the multiple selection tree controls by using checkboxes: set
-    // up the image list we need for this if we do have multiple selections
-    if ( m_windowStyle & wxTR_MULTIPLE )
-        wstyle |= TVS_CHECKBOXES;
-#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+#if !defined(__WXWINCE__) && defined(TVS_INFOTIP)
+    // Need so that TVN_GETINFOTIP messages will be sent
+    wstyle |= TVS_INFOTIP;
+#endif

 
     // Create the tree control.
 
     // Create the tree control.

-    if ( !MSWCreateControl(WC_TREEVIEW, wstyle) )
-        return FALSE;
+    if ( !MSWCreateControl(WC_TREEVIEW, wstyle, pos, size) )
+        return false;

 
 #if wxUSE_COMCTL32_SAFELY
     wxWindow::SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
 
 #if wxUSE_COMCTL32_SAFELY
     wxWindow::SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));


@@ -630,9 +745,9 @@ bool wxTreeCtrl::Create(wxWindow *parent,
         HDC hdcMem = CreateCompatibleDC(NULL);
 
         // create a mono bitmap of the standard size
         HDC hdcMem = CreateCompatibleDC(NULL);
 
         // create a mono bitmap of the standard size

-        int x = GetSystemMetrics(SM_CXMENUCHECK);
-        int y = GetSystemMetrics(SM_CYMENUCHECK);
-        wxImageList imagelistCheckboxes(x, y, FALSE, 2);
+        int x = ::GetSystemMetrics(SM_CXMENUCHECK);
+        int y = ::GetSystemMetrics(SM_CYMENUCHECK);
+        wxImageList imagelistCheckboxes(x, y, false, 2);

         HBITMAP hbmpCheck = CreateBitmap(x, y,   // bitmap size
                                          1,      // # of color planes
                                          1,      // # bits needed for one pixel
         HBITMAP hbmpCheck = CreateBitmap(x, y,   // bitmap size
                                          1,      // # of color planes
                                          1,      // # bits needed for one pixel


@@ -669,9 +784,9 @@ bool wxTreeCtrl::Create(wxWindow *parent,
     }
 #endif // 0
 
     }
 #endif // 0
 

-    SetSize(pos.x, pos.y, size.x, size.y);
+    wxSetCCUnicodeFormat(GetHwnd());

 
 

-    return TRUE;
+    return true;

 }
 
 wxTreeCtrl::~wxTreeCtrl()
 }
 
 wxTreeCtrl::~wxTreeCtrl()


@@ -679,53 +794,65 @@ wxTreeCtrl::~wxTreeCtrl()
     // delete any attributes
     if ( m_hasAnyAttr )
     {
     // delete any attributes
     if ( m_hasAnyAttr )
     {

-        for ( wxNode *node = m_attrs.Next(); node; node = m_attrs.Next() )
-        {
-            delete (wxTreeItemAttr *)node->Data();
-        }
+        WX_CLEAR_HASH_MAP(wxMapTreeAttr, m_attrs);

 
         // prevent TVN_DELETEITEM handler from deleting the attributes again!
 
         // prevent TVN_DELETEITEM handler from deleting the attributes again!

-        m_hasAnyAttr = FALSE;
+        m_hasAnyAttr = false;

     }
 
     DeleteTextCtrl();
 
     // delete user data to prevent memory leaks
     }
 
     DeleteTextCtrl();
 
     // delete user data to prevent memory leaks

+    // also deletes hidden root node storage.

     DeleteAllItems();
     DeleteAllItems();

-
-    if (m_ownsImageListNormal) delete m_imageListNormal;
-    if (m_ownsImageListState) delete m_imageListState;

 }
 
 // ----------------------------------------------------------------------------
 // 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
 
 // simple wrappers which add error checking in debug mode
 

-bool wxTreeCtrl::DoGetItem(wxTreeViewItem* tvItem) const
+bool wxTreeCtrl::DoGetItem(wxTreeViewItem *tvItem) const

 {
 {

+    wxCHECK_MSG( tvItem->hItem != TVI_ROOT, false,
+                 _T("can't retrieve virtual root item") );
+

     if ( !TreeView_GetItem(GetHwnd(), tvItem) )
     {
         wxLogLastError(wxT("TreeView_GetItem"));
 
     if ( !TreeView_GetItem(GetHwnd(), tvItem) )
     {
         wxLogLastError(wxT("TreeView_GetItem"));
 

-        return FALSE;
+        return false;

     }
 
     }
 

-    return TRUE;
+    return true;

 }
 
 }
 

-void wxTreeCtrl::DoSetItem(wxTreeViewItem* tvItem)
+void wxTreeCtrl::DoSetItem(wxTreeViewItem *tvItem)

 {
 {

+    TreeItemUnlocker unlocker(tvItem->hItem);
+

     if ( TreeView_SetItem(GetHwnd(), tvItem) == -1 )
     {
         wxLogLastError(wxT("TreeView_SetItem"));
     }
 }
 
     if ( TreeView_SetItem(GetHwnd(), tvItem) == -1 )
     {
         wxLogLastError(wxT("TreeView_SetItem"));
     }
 }
 

-size_t wxTreeCtrl::GetCount() const
+unsigned int wxTreeCtrl::GetCount() const

 {
 {

-    return (size_t)TreeView_GetCount(GetHwnd());
+    return (unsigned int)TreeView_GetCount(GetHwnd());

 }
 
 unsigned int wxTreeCtrl::GetIndent() const
 }
 
 unsigned int wxTreeCtrl::GetIndent() const


@@ -738,55 +865,36 @@ void wxTreeCtrl::SetIndent(unsigned int indent)
     TreeView_SetIndent(GetHwnd(), indent);
 }
 
     TreeView_SetIndent(GetHwnd(), indent);
 }
 

-wxImageList *wxTreeCtrl::GetImageList() const
-{
-    return m_imageListNormal;
-}
-
-wxImageList *wxTreeCtrl::GetStateImageList() const
-{
-    return m_imageListNormal;
-}
-

 void wxTreeCtrl::SetAnyImageList(wxImageList *imageList, int which)
 {
     // no error return
 void wxTreeCtrl::SetAnyImageList(wxImageList *imageList, int which)
 {
     // no error return

-    TreeView_SetImageList(GetHwnd(),
-                          imageList ? imageList->GetHIMAGELIST() : 0,
-                          which);
+    (void) TreeView_SetImageList(GetHwnd(),
+                                 imageList ? imageList->GetHIMAGELIST() : 0,
+                                 which);

 }
 
 void wxTreeCtrl::SetImageList(wxImageList *imageList)
 {
 }
 
 void wxTreeCtrl::SetImageList(wxImageList *imageList)
 {

-    if (m_ownsImageListNormal) delete m_imageListNormal;
+    if (m_ownsImageListNormal)
+        delete m_imageListNormal;
+

     SetAnyImageList(m_imageListNormal = imageList, TVSIL_NORMAL);
     SetAnyImageList(m_imageListNormal = imageList, TVSIL_NORMAL);

-    m_ownsImageListNormal = FALSE;
+    m_ownsImageListNormal = false;

 }
 
 void wxTreeCtrl::SetStateImageList(wxImageList *imageList)
 {
     if (m_ownsImageListState) delete m_imageListState;
     SetAnyImageList(m_imageListState = imageList, TVSIL_STATE);
 }
 
 void wxTreeCtrl::SetStateImageList(wxImageList *imageList)
 {
     if (m_ownsImageListState) delete m_imageListState;
     SetAnyImageList(m_imageListState = imageList, TVSIL_STATE);

-    m_ownsImageListState = FALSE;
-}
-
-void wxTreeCtrl::AssignImageList(wxImageList *imageList)
-{
-    SetImageList(imageList);
-    m_ownsImageListNormal = TRUE;
-}
-
-void wxTreeCtrl::AssignStateImageList(wxImageList *imageList)
-{
-    SetStateImageList(imageList);
-    m_ownsImageListState = TRUE;
+    m_ownsImageListState = false;

 }
 
 size_t wxTreeCtrl::GetChildrenCount(const wxTreeItemId& item,
                                     bool recursively) const
 {
 }
 
 size_t wxTreeCtrl::GetChildrenCount(const wxTreeItemId& item,
                                     bool recursively) const
 {

-    TraverseCounter counter(this, item, recursively);
+    wxCHECK_MSG( item.IsOk(), 0u, wxT("invalid tree item") );

 
 

+    TraverseCounter counter(this, item, recursively);

     return counter.GetCount() - 1;
 }
 
     return counter.GetCount() - 1;
 }
 


@@ -798,32 +906,39 @@ bool wxTreeCtrl::SetBackgroundColour(const wxColour &colour)
 {
 #if !wxUSE_COMCTL32_SAFELY
     if ( !wxWindowBase::SetBackgroundColour(colour) )
 {
 #if !wxUSE_COMCTL32_SAFELY
     if ( !wxWindowBase::SetBackgroundColour(colour) )

-        return FALSE;
+        return false;

 
 

-    SendMessage(GetHwnd(), TVM_SETBKCOLOR, 0, colour.GetPixel());
+    ::SendMessage(GetHwnd(), TVM_SETBKCOLOR, 0, colour.GetPixel());

 #endif
 
 #endif
 

-    return TRUE;
+    return true;

 }
 
 bool wxTreeCtrl::SetForegroundColour(const wxColour &colour)
 {
 #if !wxUSE_COMCTL32_SAFELY
     if ( !wxWindowBase::SetForegroundColour(colour) )
 }
 
 bool wxTreeCtrl::SetForegroundColour(const wxColour &colour)
 {
 #if !wxUSE_COMCTL32_SAFELY
     if ( !wxWindowBase::SetForegroundColour(colour) )

-        return FALSE;
+        return false;

 
 

-    SendMessage(GetHwnd(), TVM_SETTEXTCOLOR, 0, colour.GetPixel());
+    ::SendMessage(GetHwnd(), TVM_SETTEXTCOLOR, 0, colour.GetPixel());

 #endif
 
 #endif
 

-    return TRUE;
+    return true;

 }
 
 // ----------------------------------------------------------------------------
 // Item access
 // ----------------------------------------------------------------------------
 
 }
 
 // ----------------------------------------------------------------------------
 // Item access
 // ----------------------------------------------------------------------------
 

+bool wxTreeCtrl::IsHiddenRoot(const wxTreeItemId& item) const
+{
+    return HITEM(item) == TVI_ROOT && HasFlag(wxTR_HIDE_ROOT);
+}
+

 wxString wxTreeCtrl::GetItemText(const wxTreeItemId& item) const
 {
 wxString wxTreeCtrl::GetItemText(const wxTreeItemId& item) const
 {

+    wxCHECK_MSG( item.IsOk(), wxEmptyString, wxT("invalid tree item") );
+

     wxChar buf[512];  // the size is arbitrary...
 
     wxTreeViewItem tvItem(item, TVIF_TEXT);
     wxChar buf[512];  // the size is arbitrary...
 
     wxTreeViewItem tvItem(item, TVIF_TEXT);


@@ -840,220 +955,120 @@ wxString wxTreeCtrl::GetItemText(const wxTreeItemId& item) const
 
 void wxTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text)
 {
 
 void wxTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text)
 {

+    wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+
+    if ( IS_VIRTUAL_ROOT(item) )
+        return;
+

     wxTreeViewItem tvItem(item, TVIF_TEXT);
     wxTreeViewItem tvItem(item, TVIF_TEXT);

-    tvItem.pszText = (wxChar *)text.c_str();  // conversion is ok
+    tvItem.pszText = (wxChar *)text.wx_str();  // conversion is ok

     DoSetItem(&tvItem);
     DoSetItem(&tvItem);

+
+    // when setting the text of the item being edited, the text control should
+    // be updated to reflect the new text as well, otherwise calling
+    // SetItemText() in the OnBeginLabelEdit() handler doesn't have any effect
+    //
+    // don't use GetEditControl() here because m_textCtrl is not set yet
+    HWND hwndEdit = TreeView_GetEditControl(GetHwnd());
+    if ( hwndEdit )
+    {
+        if ( item == m_idEdited )
+        {
+            ::SetWindowText(hwndEdit, text.wx_str());
+        }
+    }

 }
 
 }
 

-int wxTreeCtrl::DoGetItemImageFromData(const wxTreeItemId& item,
-                                       wxTreeItemIcon which) const
+int wxTreeCtrl::GetItemImage(const wxTreeItemId& item,
+                             wxTreeItemIcon which) const

 {
 {

-    wxTreeViewItem tvItem(item, TVIF_PARAM);
-    if ( !DoGetItem(&tvItem) )
+    wxCHECK_MSG( item.IsOk(), -1, wxT("invalid tree item") );
+
+    if ( IsHiddenRoot(item) )

     {
     {

+        // no images for hidden root item

         return -1;
     }
 
         return -1;
     }
 

-    return ((wxTreeItemIndirectData *)tvItem.lParam)->GetImage(which);
+    wxTreeItemParam *param = GetItemParam(item);
+
+    return param && param->HasImage(which) ? param->GetImage(which) : -1;

 }
 
 }
 

-void wxTreeCtrl::DoSetItemImageFromData(const wxTreeItemId& item,
-                                        int image,
-                                        wxTreeItemIcon which) const
+void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image,
+                              wxTreeItemIcon which)

 {
 {

-    wxTreeViewItem tvItem(item, TVIF_PARAM);
-    if ( !DoGetItem(&tvItem) )
+    wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+    wxCHECK_RET( which >= 0 &&
+                 which < wxTreeItemIcon_Max,
+                 wxT("invalid image index"));
+
+
+    if ( IsHiddenRoot(item) )

     {
     {

+        // no images for hidden root item

         return;
     }
 
         return;
     }
 

-    wxTreeItemIndirectData *data = ((wxTreeItemIndirectData *)tvItem.lParam);
+    wxTreeItemParam *data = GetItemParam(item);
+    if ( !data )
+        return;

 
     data->SetImage(image, which);
 
 
     data->SetImage(image, which);
 

-    // make sure that we have selected images as well
-    if ( which == wxTreeItemIcon_Normal &&
-         !data->HasImage(wxTreeItemIcon_Selected) )
+    RefreshItem(item);
+}
+
+wxTreeItemParam *wxTreeCtrl::GetItemParam(const wxTreeItemId& item) const
+{
+    wxCHECK_MSG( item.IsOk(), NULL, wxT("invalid tree item") );
+
+    wxTreeViewItem tvItem(item, TVIF_PARAM);
+
+    // hidden root may still have data.
+    if ( IS_VIRTUAL_ROOT(item) )

     {
     {

-        data->SetImage(image, wxTreeItemIcon_Selected);
+        return GET_VIRTUAL_ROOT()->GetParam();

     }
 
     }
 

-    if ( which == wxTreeItemIcon_Expanded &&
-         !data->HasImage(wxTreeItemIcon_SelectedExpanded) )
+    // visible node.
+    if ( !DoGetItem(&tvItem) )

     {
     {

-        data->SetImage(image, wxTreeItemIcon_SelectedExpanded);
+        return NULL;

     }
     }

+
+    return (wxTreeItemParam *)tvItem.lParam;

 }
 
 }
 

-void wxTreeCtrl::DoSetItemImages(const wxTreeItemId& item,
-                                 int image,
-                                 int imageSel)
+wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const

 {
 {

-    wxTreeViewItem tvItem(item, TVIF_IMAGE | TVIF_SELECTEDIMAGE);
-    tvItem.iSelectedImage = imageSel;
-    tvItem.iImage = image;
-    DoSetItem(&tvItem);
+    wxTreeItemParam *data = GetItemParam(item);
+
+    return data ? data->GetData() : NULL;

 }
 
 }
 

-int wxTreeCtrl::GetItemImage(const wxTreeItemId& item,
-                             wxTreeItemIcon which) const
+void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data)

 {
 {

-    if ( HasIndirectData(item) )
-    {
-        return DoGetItemImageFromData(item, which);
-    }
-
-    UINT mask;
-    switch ( which )
-    {
-        default:
-            wxFAIL_MSG( wxT("unknown tree item image type") );
-
-        case wxTreeItemIcon_Normal:
-            mask = TVIF_IMAGE;
-            break;
-
-        case wxTreeItemIcon_Selected:
-            mask = TVIF_SELECTEDIMAGE;
-            break;
-
-        case wxTreeItemIcon_Expanded:
-        case wxTreeItemIcon_SelectedExpanded:
-            return -1;
-    }
-
-    wxTreeViewItem tvItem(item, mask);
-    DoGetItem(&tvItem);
-
-    return mask == TVIF_IMAGE ? tvItem.iImage : tvItem.iSelectedImage;
-}
-
-void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image,
-                              wxTreeItemIcon which)
-{
-    int imageNormal, imageSel;
-    switch ( which )
-    {
-        default:
-            wxFAIL_MSG( wxT("unknown tree item image type") );
-
-        case wxTreeItemIcon_Normal:
-            imageNormal = image;
-            imageSel = GetItemSelectedImage(item);
-            break;
-
-        case wxTreeItemIcon_Selected:
-            imageNormal = GetItemImage(item);
-            imageSel = image;
-            break;
-
-        case wxTreeItemIcon_Expanded:
-        case wxTreeItemIcon_SelectedExpanded:
-            if ( !HasIndirectData(item) )
-            {
-                // we need to get the old images first, because after we create
-                // the wxTreeItemIndirectData GetItemXXXImage() will use it to
-                // get the images
-                imageNormal = GetItemImage(item);
-                imageSel = GetItemSelectedImage(item);
-
-                // if it doesn't have it yet, add it
-                wxTreeItemIndirectData *data = new
-                    wxTreeItemIndirectData(this, item);
-
-                // copy the data to the new location
-                data->SetImage(imageNormal, wxTreeItemIcon_Normal);
-                data->SetImage(imageSel, wxTreeItemIcon_Selected);
-            }
-
-            DoSetItemImageFromData(item, image, which);
-
-            // reset the normal/selected images because we won't use them any
-            // more - now they're stored inside the indirect data
-            imageNormal =
-            imageSel = I_IMAGECALLBACK;
-            break;
-    }
-
-    // NB: at least in version 5.00.0518.9 of comctl32.dll we need to always
-    //     change both normal and selected image - otherwise the change simply
-    //     doesn't take place!
-    DoSetItemImages(item, imageNormal, imageSel);
-}
-
-wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const
-{
-    wxTreeViewItem tvItem(item, TVIF_PARAM);
-    if ( !DoGetItem(&tvItem) )
-    {
-        return NULL;
-    }
-
-    wxTreeItemData *data = (wxTreeItemData *)tvItem.lParam;
-    if ( IsDataIndirect(data) )
-    {
-        data = ((wxTreeItemIndirectData *)data)->GetData();
-    }
-
-    return data;
-}
-
-void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data)
-{
-    // first, associate this piece of data with this item
-    if ( data )
+    // first, associate this piece of data with this item
+    if ( data )

     {
         data->SetId(item);
     }
 
     {
         data->SetId(item);
     }
 

-    wxTreeViewItem tvItem(item, TVIF_PARAM);
+    wxTreeItemParam *param = GetItemParam(item);

 
 

-    if ( HasIndirectData(item) )
-    {
-        if ( DoGetItem(&tvItem) )
-        {
-            ((wxTreeItemIndirectData *)tvItem.lParam)->SetData(data);
-        }
-        else
-        {
-            wxFAIL_MSG( wxT("failed to change tree items data") );
-        }
-    }
-    else
-    {
-        tvItem.lParam = (LPARAM)data;
-        DoSetItem(&tvItem);
-    }
-}
-
-void wxTreeCtrl::SetIndirectItemData(const wxTreeItemId& item,
-                                     wxTreeItemIndirectData *data)
-{
-    // this should never happen because it's unnecessary and will probably lead
-    // to crash too because the code elsewhere supposes that the pointer the
-    // wxTreeItemIndirectData has is a real wxItemData and not
-    // wxTreeItemIndirectData as well
-    wxASSERT_MSG( !HasIndirectData(item), wxT("setting indirect data twice?") );
+    wxCHECK_RET( param, wxT("failed to change tree items data") );

 
 

-    SetItemData(item, data);
+    param->SetData(data);

 }
 
 }
 

-bool wxTreeCtrl::HasIndirectData(const wxTreeItemId& item) const
+void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has)

 {
 {

-    // query the item itself
-    wxTreeViewItem tvItem(item, TVIF_PARAM);
-    if ( !DoGetItem(&tvItem) )
-    {
-        return FALSE;
-    }
+    wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );

 
 

-    wxTreeItemData *data = (wxTreeItemData *)tvItem.lParam;
-
-    return data && IsDataIndirect(data);
-}
+    if ( IS_VIRTUAL_ROOT(item) )
+        return;

 
 

-void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has)
-{

     wxTreeViewItem tvItem(item, TVIF_CHILDREN);
     tvItem.cChildren = (int)has;
     DoSetItem(&tvItem);
     wxTreeViewItem tvItem(item, TVIF_CHILDREN);
     tvItem.cChildren = (int)has;
     DoSetItem(&tvItem);


@@ -1061,6 +1076,11 @@ void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has)
 
 void wxTreeCtrl::SetItemBold(const wxTreeItemId& item, bool bold)
 {
 
 void wxTreeCtrl::SetItemBold(const wxTreeItemId& item, bool bold)
 {

+    wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+
+    if ( IS_VIRTUAL_ROOT(item) )
+        return;
+

     wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_BOLD);
     tvItem.state = bold ? TVIS_BOLD : 0;
     DoSetItem(&tvItem);
     wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_BOLD);
     tvItem.state = bold ? TVIS_BOLD : 0;
     DoSetItem(&tvItem);


@@ -1068,6 +1088,9 @@ void wxTreeCtrl::SetItemBold(const wxTreeItemId& item, bool bold)
 
 void wxTreeCtrl::SetItemDropHighlight(const wxTreeItemId& item, bool highlight)
 {
 
 void wxTreeCtrl::SetItemDropHighlight(const wxTreeItemId& item, bool highlight)
 {

+    if ( IS_VIRTUAL_ROOT(item) )
+        return;
+

     wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_DROPHILITED);
     tvItem.state = highlight ? TVIS_DROPHILITED : 0;
     DoSetItem(&tvItem);
     wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_DROPHILITED);
     tvItem.state = highlight ? TVIS_DROPHILITED : 0;
     DoSetItem(&tvItem);


@@ -1075,6 +1098,9 @@ void wxTreeCtrl::SetItemDropHighlight(const wxTreeItemId& item, bool highlight)
 
 void wxTreeCtrl::RefreshItem(const wxTreeItemId& item)
 {
 
 void wxTreeCtrl::RefreshItem(const wxTreeItemId& item)
 {

+    if ( IS_VIRTUAL_ROOT(item) )
+        return;
+

     wxRect rect;
     if ( GetBoundingRect(item, rect) )
     {
     wxRect rect;
     if ( GetBoundingRect(item, rect) )
     {


@@ -1082,17 +1108,47 @@ void wxTreeCtrl::RefreshItem(const wxTreeItemId& item)
     }
 }
 
     }
 }
 

+wxColour wxTreeCtrl::GetItemTextColour(const wxTreeItemId& item) const
+{
+    wxCHECK_MSG( item.IsOk(), wxNullColour, wxT("invalid tree item") );
+
+    wxMapTreeAttr::const_iterator it = m_attrs.find(item.m_pItem);
+    return it == m_attrs.end() ? wxNullColour : it->second->GetTextColour();
+}
+
+wxColour wxTreeCtrl::GetItemBackgroundColour(const wxTreeItemId& item) const
+{
+    wxCHECK_MSG( item.IsOk(), wxNullColour, wxT("invalid tree item") );
+
+    wxMapTreeAttr::const_iterator it = m_attrs.find(item.m_pItem);
+    return it == m_attrs.end() ? wxNullColour : it->second->GetBackgroundColour();
+}
+
+wxFont wxTreeCtrl::GetItemFont(const wxTreeItemId& item) const
+{
+    wxCHECK_MSG( item.IsOk(), wxNullFont, wxT("invalid tree item") );
+
+    wxMapTreeAttr::const_iterator it = m_attrs.find(item.m_pItem);
+    return it == m_attrs.end() ? wxNullFont : it->second->GetFont();
+}
+

 void wxTreeCtrl::SetItemTextColour(const wxTreeItemId& item,
                                    const wxColour& col)
 {
 void wxTreeCtrl::SetItemTextColour(const wxTreeItemId& item,
                                    const wxColour& col)
 {

-    m_hasAnyAttr = TRUE;
+    wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );

 
 

-    long id = (long)(WXHTREEITEM)item;
-    wxTreeItemAttr *attr = (wxTreeItemAttr *)m_attrs.Get(id);
-    if ( !attr )
+    wxTreeItemAttr *attr;
+    wxMapTreeAttr::iterator it = m_attrs.find(item.m_pItem);
+    if ( it == m_attrs.end() )

     {
     {

+        m_hasAnyAttr = true;
+
+        m_attrs[item.m_pItem] =

         attr = new wxTreeItemAttr;
         attr = new wxTreeItemAttr;

-        m_attrs.Put(id, (wxObject *)attr);
+    }
+    else
+    {
+        attr = it->second;

     }
 
     attr->SetTextColour(col);
     }
 
     attr->SetTextColour(col);


@@ -1103,14 +1159,20 @@ void wxTreeCtrl::SetItemTextColour(const wxTreeItemId& item,
 void wxTreeCtrl::SetItemBackgroundColour(const wxTreeItemId& item,
                                          const wxColour& col)
 {
 void wxTreeCtrl::SetItemBackgroundColour(const wxTreeItemId& item,
                                          const wxColour& col)
 {

-    m_hasAnyAttr = TRUE;
+    wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );

 
 

-    long id = (long)(WXHTREEITEM)item;
-    wxTreeItemAttr *attr = (wxTreeItemAttr *)m_attrs.Get(id);
-    if ( !attr )
+    wxTreeItemAttr *attr;
+    wxMapTreeAttr::iterator it = m_attrs.find(item.m_pItem);
+    if ( it == m_attrs.end() )

     {
     {

+        m_hasAnyAttr = true;
+
+        m_attrs[item.m_pItem] =

         attr = new wxTreeItemAttr;
         attr = new wxTreeItemAttr;

-        m_attrs.Put(id, (wxObject *)attr);
+    }
+    else // already in the hash
+    {
+        attr = it->second;

     }
 
     attr->SetBackgroundColour(col);
     }
 
     attr->SetBackgroundColour(col);


@@ -1120,18 +1182,28 @@ void wxTreeCtrl::SetItemBackgroundColour(const wxTreeItemId& item,
 
 void wxTreeCtrl::SetItemFont(const wxTreeItemId& item, const wxFont& font)
 {
 
 void wxTreeCtrl::SetItemFont(const wxTreeItemId& item, const wxFont& font)
 {

-    m_hasAnyAttr = TRUE;
+    wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );

 
 

-    long id = (long)(WXHTREEITEM)item;
-    wxTreeItemAttr *attr = (wxTreeItemAttr *)m_attrs.Get(id);
-    if ( !attr )
+    wxTreeItemAttr *attr;
+    wxMapTreeAttr::iterator it = m_attrs.find(item.m_pItem);
+    if ( it == m_attrs.end() )

     {
     {

+        m_hasAnyAttr = true;
+
+        m_attrs[item.m_pItem] =

         attr = new wxTreeItemAttr;
         attr = new wxTreeItemAttr;

-        m_attrs.Put(id, (wxObject *)attr);
+    }
+    else // already in the hash
+    {
+        attr = it->second;

     }
 
     attr->SetFont(font);
 
     }
 
     attr->SetFont(font);
 

+    // Reset the item's text to ensure that the bounding rect will be adjusted
+    // for the new font.
+    SetItemText(item, GetItemText(item));
+

     RefreshItem(item);
 }
 
     RefreshItem(item);
 }
 


@@ -1141,19 +1213,39 @@ void wxTreeCtrl::SetItemFont(const wxTreeItemId& item, const wxFont& font)
 
 bool wxTreeCtrl::IsVisible(const wxTreeItemId& item) const
 {
 
 bool wxTreeCtrl::IsVisible(const wxTreeItemId& item) const
 {

+    wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") );
+
+    if ( item == wxTreeItemId(TVI_ROOT) )
+    {
+        // virtual (hidden) root is never visible
+        return false;
+    }
+

     // Bug in Gnu-Win32 headers, so don't use the macro TreeView_GetItemRect
     RECT rect;
 
     // this ugliness comes directly from MSDN - it *is* the correct way to pass
     // the HTREEITEM with TVM_GETITEMRECT
     // Bug in Gnu-Win32 headers, so don't use the macro TreeView_GetItemRect
     RECT rect;
 
     // this ugliness comes directly from MSDN - it *is* the correct way to pass
     // the HTREEITEM with TVM_GETITEMRECT

-    *(WXHTREEITEM *)&rect = (WXHTREEITEM)item;
+    *(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
 {

+    wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") );
+

     wxTreeViewItem tvItem(item, TVIF_CHILDREN);
     DoGetItem(&tvItem);
 
     wxTreeViewItem tvItem(item, TVIF_CHILDREN);
     DoGetItem(&tvItem);
 


@@ -1162,8 +1254,7 @@ bool wxTreeCtrl::ItemHasChildren(const wxTreeItemId& item) const
 
 bool wxTreeCtrl::IsExpanded(const wxTreeItemId& item) const
 {
 
 bool wxTreeCtrl::IsExpanded(const wxTreeItemId& item) const
 {

-    // probably not a good idea to put it here
-    //wxASSERT( ItemHasChildren(item) );
+    wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") );

 
     wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_EXPANDED);
     DoGetItem(&tvItem);
 
     wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_EXPANDED);
     DoGetItem(&tvItem);


@@ -1173,6 +1264,8 @@ bool wxTreeCtrl::IsExpanded(const wxTreeItemId& item) const
 
 bool wxTreeCtrl::IsSelected(const wxTreeItemId& item) const
 {
 
 bool wxTreeCtrl::IsSelected(const wxTreeItemId& item) const
 {

+    wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") );
+

     wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_SELECTED);
     DoGetItem(&tvItem);
 
     wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_SELECTED);
     DoGetItem(&tvItem);
 


@@ -1181,6 +1274,8 @@ bool wxTreeCtrl::IsSelected(const wxTreeItemId& item) const
 
 bool wxTreeCtrl::IsBold(const wxTreeItemId& item) const
 {
 
 bool wxTreeCtrl::IsBold(const wxTreeItemId& item) const
 {

+    wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") );
+

     wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_BOLD);
     DoGetItem(&tvItem);
 
     wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_BOLD);
     DoGetItem(&tvItem);
 


@@ -1193,45 +1288,78 @@ bool wxTreeCtrl::IsBold(const wxTreeItemId& item) const
 
 wxTreeItemId wxTreeCtrl::GetRootItem() const
 {
 
 wxTreeItemId wxTreeCtrl::GetRootItem() const
 {

-    return wxTreeItemId((WXHTREEITEM) TreeView_GetRoot(GetHwnd()));
+    // Root may be real (visible) or virtual (hidden).
+    if ( GET_VIRTUAL_ROOT() )
+        return TVI_ROOT;
+
+    return wxTreeItemId(TreeView_GetRoot(GetHwnd()));

 }
 
 wxTreeItemId wxTreeCtrl::GetSelection() const
 {
 }
 
 wxTreeItemId wxTreeCtrl::GetSelection() const
 {

-    wxCHECK_MSG( !(m_windowStyle & wxTR_MULTIPLE), (long)(WXHTREEITEM)0,
+    wxCHECK_MSG( !(m_windowStyle & wxTR_MULTIPLE), wxTreeItemId(),

                  wxT("this only works with single selection controls") );
 
                  wxT("this only works with single selection controls") );
 

-    return wxTreeItemId((WXHTREEITEM) TreeView_GetSelection(GetHwnd()));
+    return wxTreeItemId(TreeView_GetSelection(GetHwnd()));

 }
 
 }
 

-wxTreeItemId wxTreeCtrl::GetParent(const wxTreeItemId& item) const
+wxTreeItemId wxTreeCtrl::GetItemParent(const wxTreeItemId& item) const

 {
 {

-    return wxTreeItemId((WXHTREEITEM) TreeView_GetParent(GetHwnd(), HITEM(item)));
+    wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
+
+    HTREEITEM hItem;
+
+    if ( IS_VIRTUAL_ROOT(item) )
+    {
+        // no parent for the virtual root
+        hItem = 0;
+    }
+    else // normal item
+    {
+        hItem = TreeView_GetParent(GetHwnd(), HITEM(item));
+        if ( !hItem && HasFlag(wxTR_HIDE_ROOT) )
+        {
+            // the top level items should have the virtual root as their parent
+            hItem = TVI_ROOT;
+        }
+    }
+
+    return wxTreeItemId(hItem);

 }
 
 wxTreeItemId wxTreeCtrl::GetFirstChild(const wxTreeItemId& item,
 }
 
 wxTreeItemId wxTreeCtrl::GetFirstChild(const wxTreeItemId& item,

-                                       long& _cookie) const
+                                       wxTreeItemIdValue& cookie) const

 {
 {

+    wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
+

     // remember the last child returned in 'cookie'
     // remember the last child returned in 'cookie'

-    _cookie = (long)TreeView_GetChild(GetHwnd(), HITEM(item));
+    cookie = TreeView_GetChild(GetHwnd(), HITEM(item));

 
 

-    return wxTreeItemId((WXHTREEITEM)_cookie);
+    return wxTreeItemId(cookie);

 }
 
 wxTreeItemId wxTreeCtrl::GetNextChild(const wxTreeItemId& WXUNUSED(item),
 }
 
 wxTreeItemId wxTreeCtrl::GetNextChild(const wxTreeItemId& WXUNUSED(item),

-                                      long& _cookie) const
+                                      wxTreeItemIdValue& cookie) const

 {
 {

-    wxTreeItemId l = wxTreeItemId((WXHTREEITEM)TreeView_GetNextSibling(GetHwnd(),
-                                   HITEM(_cookie)));
-    _cookie = (long)l;
+    wxTreeItemId fromCookie(cookie);
+
+    HTREEITEM hitem = HITEM(fromCookie);
+
+    hitem = TreeView_GetNextSibling(GetHwnd(), hitem);

 
 

-    return l;
+    wxTreeItemId item(hitem);
+
+    cookie = item.m_pItem;
+
+    return item;

 }
 
 wxTreeItemId wxTreeCtrl::GetLastChild(const wxTreeItemId& item) const
 {
 }
 
 wxTreeItemId wxTreeCtrl::GetLastChild(const wxTreeItemId& item) const
 {

+    wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
+

     // can this be done more efficiently?
     // can this be done more efficiently?

-    long cookie;
+    wxTreeItemIdValue cookie;

 
     wxTreeItemId childLast,
     child = GetFirstChild(item, cookie);
 
     wxTreeItemId childLast,
     child = GetFirstChild(item, cookie);


@@ -1246,31 +1374,51 @@ wxTreeItemId wxTreeCtrl::GetLastChild(const wxTreeItemId& item) const
 
 wxTreeItemId wxTreeCtrl::GetNextSibling(const wxTreeItemId& item) const
 {
 
 wxTreeItemId wxTreeCtrl::GetNextSibling(const wxTreeItemId& item) const
 {

-    return wxTreeItemId((WXHTREEITEM) TreeView_GetNextSibling(GetHwnd(), HITEM(item)));
+    wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
+    return wxTreeItemId(TreeView_GetNextSibling(GetHwnd(), HITEM(item)));

 }
 
 wxTreeItemId wxTreeCtrl::GetPrevSibling(const wxTreeItemId& item) const
 {
 }
 
 wxTreeItemId wxTreeCtrl::GetPrevSibling(const wxTreeItemId& item) const
 {

-    return wxTreeItemId((WXHTREEITEM) TreeView_GetPrevSibling(GetHwnd(), HITEM(item)));
+    wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
+    return wxTreeItemId(TreeView_GetPrevSibling(GetHwnd(), HITEM(item)));

 }
 
 wxTreeItemId wxTreeCtrl::GetFirstVisibleItem() const
 {
 }
 
 wxTreeItemId wxTreeCtrl::GetFirstVisibleItem() const
 {

-    return wxTreeItemId((WXHTREEITEM) TreeView_GetFirstVisible(GetHwnd()));
+    return wxTreeItemId(TreeView_GetFirstVisible(GetHwnd()));

 }
 
 wxTreeItemId wxTreeCtrl::GetNextVisible(const wxTreeItemId& item) const
 {
 }
 
 wxTreeItemId wxTreeCtrl::GetNextVisible(const wxTreeItemId& item) const
 {

+    wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );

     wxASSERT_MSG( IsVisible(item), wxT("The item you call GetNextVisible() for must be visible itself!"));
 
     wxASSERT_MSG( IsVisible(item), wxT("The item you call GetNextVisible() for must be visible itself!"));
 

-    return wxTreeItemId((WXHTREEITEM) TreeView_GetNextVisible(GetHwnd(), HITEM(item)));
+    wxTreeItemId next(TreeView_GetNextVisible(GetHwnd(), HITEM(item)));
+    if ( next.IsOk() && !IsVisible(next) )
+    {
+        // Win32 considers that any non-collapsed item is visible while we want
+        // to return only really visible items
+        next.Unset();
+    }
+
+    return next;

 }
 
 wxTreeItemId wxTreeCtrl::GetPrevVisible(const wxTreeItemId& item) const
 {
 }
 
 wxTreeItemId wxTreeCtrl::GetPrevVisible(const wxTreeItemId& item) const
 {

+    wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );

     wxASSERT_MSG( IsVisible(item), wxT("The item you call GetPrevVisible() for must be visible itself!"));
 
     wxASSERT_MSG( IsVisible(item), wxT("The item you call GetPrevVisible() for must be visible itself!"));
 

-    return wxTreeItemId((WXHTREEITEM) TreeView_GetPrevVisible(GetHwnd(), HITEM(item)));
+    wxTreeItemId prev(TreeView_GetPrevVisible(GetHwnd(), HITEM(item)));
+    if ( prev.IsOk() && !IsVisible(prev) )
+    {
+        // just as above, Win32 function will happily return the previous item
+        // in the tree for the first visible item too
+        prev.Unset();
+    }
+
+    return prev;

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -1279,6 +1427,8 @@ wxTreeItemId wxTreeCtrl::GetPrevVisible(const wxTreeItemId& item) const
 
 bool wxTreeCtrl::IsItemChecked(const wxTreeItemId& item) const
 {
 
 bool wxTreeCtrl::IsItemChecked(const wxTreeItemId& item) const
 {

+    wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") );
+

     // receive the desired information.
     wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK);
     DoGetItem(&tvItem);
     // receive the desired information.
     wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK);
     DoGetItem(&tvItem);


@@ -1289,9 +1439,13 @@ bool wxTreeCtrl::IsItemChecked(const wxTreeItemId& item) const
 
 void wxTreeCtrl::SetItemCheck(const wxTreeItemId& item, bool check)
 {
 
 void wxTreeCtrl::SetItemCheck(const wxTreeItemId& item, bool check)
 {

+    wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+

     // receive the desired information.
     wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK);
 
     // receive the desired information.
     wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK);
 

+    DoGetItem(&tvItem);
+

     // state images are one-based
     tvItem.state = (check ? 2 : 1) << 12;
 
     // state images are one-based
     tvItem.state = (check ? 2 : 1) << 12;
 


@@ -1309,11 +1463,11 @@ size_t wxTreeCtrl::GetSelections(wxArrayTreeItemIds& selections) const
 // Usual operations
 // ----------------------------------------------------------------------------
 
 // Usual operations
 // ----------------------------------------------------------------------------
 

-wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent,
-                                      wxTreeItemId hInsertAfter,
-                                      const wxString& text,
-                                      int image, int selectedImage,
-                                      wxTreeItemData *data)
+wxTreeItemId wxTreeCtrl::DoInsertAfter(const wxTreeItemId& parent,
+                                       const wxTreeItemId& hInsertAfter,
+                                       const wxString& text,
+                                       int image, int selectedImage,
+                                       wxTreeItemData *data)

 {
     wxCHECK_MSG( parent.IsOk() || !TreeView_GetRoot(GetHwnd()),
                  wxTreeItemId(),
 {
     wxCHECK_MSG( parent.IsOk() || !TreeView_GetRoot(GetHwnd()),
                  wxTreeItemId(),


@@ -1331,10 +1485,10 @@ wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent,
     }
 
     UINT mask = 0;
     }
 
     UINT mask = 0;

-    if ( !text.IsEmpty() )
+    if ( !text.empty() )

     {
         mask |= TVIF_TEXT;
     {
         mask |= TVIF_TEXT;

-        tvIns.item.pszText = (wxChar *)text.c_str();  // cast is ok
+        tvIns.item.pszText = (wxChar *)text.wx_str();  // cast is ok

     }
     else
     {
     }
     else
     {


@@ -1342,114 +1496,92 @@ wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent,
         tvIns.item.cchTextMax = 0;
     }
 
         tvIns.item.cchTextMax = 0;
     }
 

-    if ( image != -1 )
-    {
-        mask |= TVIF_IMAGE;
-        tvIns.item.iImage = image;
+    // create the param which will store the other item parameters
+    wxTreeItemParam *param = new wxTreeItemParam;

 
 

-        if ( selectedImage == -1 )
-        {
-            // take the same image for selected icon if not specified
-            selectedImage = image;
-        }
-    }
+    // we return the images on demand as they depend on whether the item is
+    // expanded or collapsed too in our case
+    mask |= TVIF_IMAGE | TVIF_SELECTEDIMAGE;
+    tvIns.item.iImage = I_IMAGECALLBACK;
+    tvIns.item.iSelectedImage = I_IMAGECALLBACK;

 
 

-    if ( selectedImage != -1 )
-    {
-        mask |= TVIF_SELECTEDIMAGE;
-        tvIns.item.iSelectedImage = selectedImage;
-    }
-
-    if ( data != NULL )
-    {
-        mask |= TVIF_PARAM;
-        tvIns.item.lParam = (LPARAM)data;
-    }
+    param->SetImage(image, wxTreeItemIcon_Normal);
+    param->SetImage(selectedImage, wxTreeItemIcon_Selected);

 
 

+    mask |= TVIF_PARAM;
+    tvIns.item.lParam = (LPARAM)param;

     tvIns.item.mask = mask;
 
     tvIns.item.mask = mask;
 

-    HTREEITEM id = (HTREEITEM) TreeView_InsertItem(GetHwnd(), &tvIns);
+    HTREEITEM id = TreeView_InsertItem(GetHwnd(), &tvIns);

     if ( id == 0 )
     {
         wxLogLastError(wxT("TreeView_InsertItem"));
     }
 
     if ( id == 0 )
     {
         wxLogLastError(wxT("TreeView_InsertItem"));
     }
 

+    // associate the application tree item with Win32 tree item handle
+    param->SetItem(id);
+
+    // setup wxTreeItemData

     if ( data != NULL )
     {
     if ( data != NULL )
     {

-        // associate the application tree item with Win32 tree item handle
-        data->SetId((WXHTREEITEM)id);
+        param->SetData(data);
+        data->SetId(id);

     }
 
     }
 

-    return wxTreeItemId((WXHTREEITEM)id);
-}
-
-// for compatibility only
-wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent,
-                                    const wxString& text,
-                                    int image, int selImage,
-                                    long insertAfter)
-{
-    return DoInsertItem(parent, (WXHTREEITEM)insertAfter, text,
-                        image, selImage, NULL);
+    return wxTreeItemId(id);

 }
 
 wxTreeItemId wxTreeCtrl::AddRoot(const wxString& text,
                                  int image, int selectedImage,
                                  wxTreeItemData *data)
 {
 }
 
 wxTreeItemId wxTreeCtrl::AddRoot(const wxString& text,
                                  int image, int selectedImage,
                                  wxTreeItemData *data)
 {

-    return DoInsertItem(wxTreeItemId((long) (WXHTREEITEM) 0), (long)(WXHTREEITEM) 0,
-                        text, image, selectedImage, data);
-}
+    if ( HasFlag(wxTR_HIDE_ROOT) )
+    {
+        wxASSERT_MSG( !m_pVirtualRoot, _T("tree can have only a single root") );

 
 

-wxTreeItemId wxTreeCtrl::PrependItem(const wxTreeItemId& parent,
-                                     const wxString& text,
-                                     int image, int selectedImage,
-                                     wxTreeItemData *data)
-{
-    return DoInsertItem(parent, (WXHTREEITEM) TVI_FIRST,
-                        text, image, selectedImage, data);
-}
+        // create a virtual root item, the parent for all the others
+        wxTreeItemParam *param = new wxTreeItemParam;
+        param->SetData(data);

 
 

-wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent,
-                                    const wxTreeItemId& idPrevious,
-                                    const wxString& text,
-                                    int image, int selectedImage,
-                                    wxTreeItemData *data)
-{
-    return DoInsertItem(parent, idPrevious, text, image, selectedImage, data);
+        m_pVirtualRoot = new wxVirtualNode(param);
+
+        return TVI_ROOT;
+    }
+
+    return DoInsertAfter(wxTreeItemId(), wxTreeItemId(),
+                           text, image, selectedImage, data);

 }
 
 }
 

-wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent,
-                                    size_t index,
-                                    const wxString& text,
-                                    int image, int selectedImage,
-                                    wxTreeItemData *data)
+wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent,
+                                      size_t index,
+                                      const wxString& text,
+                                      int image, int selectedImage,
+                                      wxTreeItemData *data)

 {
 {

-    // find the item from index
-    long cookie;
-    wxTreeItemId idPrev, idCur = GetFirstChild(parent, cookie);
-    while ( index != 0 && idCur.IsOk() )
+    wxTreeItemId idPrev;
+    if ( index == (size_t)-1 )

     {
     {

-        index--;
-
-        idPrev = idCur;
-        idCur = GetNextChild(parent, cookie);
+        // special value: append to the end
+        idPrev = TVI_LAST;

     }
     }

+    else // find the item from index
+    {
+        wxTreeItemIdValue cookie;
+        wxTreeItemId idCur = GetFirstChild(parent, cookie);
+        while ( index != 0 && idCur.IsOk() )
+        {
+            index--;

 
 

-    // assert, not check: if the index is invalid, we will append the item
-    // to the end
-    wxASSERT_MSG( index == 0, _T("bad index in wxTreeCtrl::InsertItem") );
+            idPrev = idCur;
+            idCur = GetNextChild(parent, cookie);
+        }

 
 

-    return DoInsertItem(parent, idPrev, text, image, selectedImage, data);
-}
+        // assert, not check: if the index is invalid, we will append the item
+        // to the end
+        wxASSERT_MSG( index == 0, _T("bad index in wxTreeCtrl::InsertItem") );
+    }

 
 

-wxTreeItemId wxTreeCtrl::AppendItem(const wxTreeItemId& parent,
-                                    const wxString& text,
-                                    int image, int selectedImage,
-                                    wxTreeItemData *data)
-{
-    return DoInsertItem(parent, (WXHTREEITEM) TVI_LAST,
-                        text, image, selectedImage, data);
+    return DoInsertAfter(parent, idPrev, text, image, selectedImage, data);

 }
 
 void wxTreeCtrl::Delete(const wxTreeItemId& item)
 }
 
 void wxTreeCtrl::Delete(const wxTreeItemId& item)


@@ -1463,13 +1595,13 @@ void wxTreeCtrl::Delete(const wxTreeItemId& item)
 // delete all children (but don't delete the item itself)
 void wxTreeCtrl::DeleteChildren(const wxTreeItemId& item)
 {
 // delete all children (but don't delete the item itself)
 void wxTreeCtrl::DeleteChildren(const wxTreeItemId& item)
 {

-    long cookie;
+    wxTreeItemIdValue cookie;

 
 

-    wxArrayLong children;
+    wxArrayTreeItemIds children;

     wxTreeItemId child = GetFirstChild(item, cookie);
     while ( child.IsOk() )
     {
     wxTreeItemId child = GetFirstChild(item, cookie);
     while ( child.IsOk() )
     {

-        children.Add((long)(WXHTREEITEM)child);
+        children.Add(child);

 
         child = GetNextChild(item, cookie);
     }
 
         child = GetNextChild(item, cookie);
     }


@@ -1477,7 +1609,7 @@ void wxTreeCtrl::DeleteChildren(const wxTreeItemId& item)
     size_t nCount = children.Count();
     for ( size_t n = 0; n < nCount; n++ )
     {
     size_t nCount = children.Count();
     for ( size_t n = 0; n < nCount; n++ )
     {

-        if ( !TreeView_DeleteItem(GetHwnd(), (HTREEITEM)children[n]) )
+        if ( !TreeView_DeleteItem(GetHwnd(), HITEM(children[n])) )

         {
             wxLogLastError(wxT("TreeView_DeleteItem"));
         }
         {
             wxLogLastError(wxT("TreeView_DeleteItem"));
         }


@@ -1486,6 +1618,15 @@ void wxTreeCtrl::DeleteChildren(const wxTreeItemId& item)
 
 void wxTreeCtrl::DeleteAllItems()
 {
 
 void wxTreeCtrl::DeleteAllItems()
 {

+    // delete the "virtual" root item.
+    if ( GET_VIRTUAL_ROOT() )
+    {
+        delete GET_VIRTUAL_ROOT();
+        m_pVirtualRoot = NULL;
+    }
+
+    // and all the real items
+

     if ( !TreeView_DeleteAllItems(GetHwnd()) )
     {
         wxLogLastError(wxT("TreeView_DeleteAllItems"));
     if ( !TreeView_DeleteAllItems(GetHwnd()) )
     {
         wxLogLastError(wxT("TreeView_DeleteAllItems"));


@@ -1500,6 +1641,10 @@ void wxTreeCtrl::DoExpand(const wxTreeItemId& item, int flag)
                   flag == TVE_TOGGLE,
                   wxT("Unknown flag in wxTreeCtrl::DoExpand") );
 
                   flag == TVE_TOGGLE,
                   wxT("Unknown flag in wxTreeCtrl::DoExpand") );
 

+    // A hidden root can be neither expanded nor collapsed.
+    wxCHECK_RET( !IsHiddenRoot(item),
+                 wxT("Can't expand/collapse hidden root node!") );
+

     // TreeView_Expand doesn't send TVN_ITEMEXPAND(ING) messages, so we must
     // emulate them. This behaviour has changed slightly with comctl32.dll
     // v 4.70 - now it does send them but only the first time. To maintain
     // TreeView_Expand doesn't send TVN_ITEMEXPAND(ING) messages, so we must
     // emulate them. This behaviour has changed slightly with comctl32.dll
     // v 4.70 - now it does send them but only the first time. To maintain


@@ -1514,17 +1659,13 @@ void wxTreeCtrl::DoExpand(const wxTreeItemId& item, int flag)
 
     if ( TreeView_Expand(GetHwnd(), HITEM(item), flag) != 0 )
     {
 
     if ( TreeView_Expand(GetHwnd(), HITEM(item), flag) != 0 )
     {

-        wxTreeEvent event(wxEVT_NULL, m_windowId);
-        event.m_item = item;
-        event.SetEventObject(this);
-

         // note that the {EXPAND|COLLAPS}ING event is sent by TreeView_Expand()
         // itself
         // note that the {EXPAND|COLLAPS}ING event is sent by TreeView_Expand()
         // itself

-        event.SetEventType(gs_expandEvents[IsExpanded(item) ? IDX_EXPAND
-                                                            : IDX_COLLAPSE]
-                                          [IDX_DONE]);
-
-        (void)GetEventHandler()->ProcessEvent(event);
+        wxTreeEvent event(gs_expandEvents[IsExpanded(item) ? IDX_EXPAND
+                                                           : IDX_COLLAPSE]
+                                         [IDX_DONE],
+                           this, item);
+        (void)HandleWindowEvent(event);

     }
     //else: change didn't took place, so do nothing at all
 }
     }
     //else: change didn't took place, so do nothing at all
 }


@@ -1549,18 +1690,13 @@ void wxTreeCtrl::Toggle(const wxTreeItemId& item)
     DoExpand(item, TVE_TOGGLE);
 }
 
     DoExpand(item, TVE_TOGGLE);
 }
 

-void wxTreeCtrl::ExpandItem(const wxTreeItemId& item, int action)
-{
-    DoExpand(item, action);
-}
-

 void wxTreeCtrl::Unselect()
 {
     wxASSERT_MSG( !(m_windowStyle & wxTR_MULTIPLE),
                   wxT("doesn't make sense, may be you want UnselectAll()?") );
 
     // just remove the selection
 void wxTreeCtrl::Unselect()
 {
     wxASSERT_MSG( !(m_windowStyle & wxTR_MULTIPLE),
                   wxT("doesn't make sense, may be you want UnselectAll()?") );
 
     // just remove the selection

-    SelectItem(wxTreeItemId((long) (WXHTREEITEM) 0));
+    SelectItem(wxTreeItemId());

 }
 
 void wxTreeCtrl::UnselectAll()
 }
 
 void wxTreeCtrl::UnselectAll()


@@ -1571,12 +1707,10 @@ void wxTreeCtrl::UnselectAll()
         size_t count = GetSelections(selections);
         for ( size_t n = 0; n < count; n++ )
         {
         size_t count = GetSelections(selections);
         for ( size_t n = 0; n < count; n++ )
         {

-#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
-            SetItemCheck(selections[n], FALSE);
-#else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE

             ::UnselectItem(GetHwnd(), HITEM(selections[n]));
             ::UnselectItem(GetHwnd(), HITEM(selections[n]));

-#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE

         }
         }

+
+        m_htSelStart.Unset();

     }
     else
     {
     }
     else
     {


@@ -1585,46 +1719,44 @@ 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
-        SetItemCheck(item);
-#else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
-        ::SelectItem(GetHwnd(), HITEM(item));
-#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
-    }
-    else
-    {
-        // 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
+    wxCHECK_RET( !IsHiddenRoot(item), _T("can't select hidden root item") );

 
 

-        wxTreeEvent event(wxEVT_NULL, m_windowId);
-        event.m_item = item;
-        event.SetEventObject(this);
+    wxASSERT_MSG( select || HasFlag(wxTR_MULTIPLE),
+                  _T("SelectItem(false) works only for multiselect") );

 
 

-        event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGING);
-        if ( !GetEventHandler()->ProcessEvent(event) || event.IsAllowed() )
+    wxTreeEvent event(wxEVT_COMMAND_TREE_SEL_CHANGING, this, item);
+    if ( !HandleWindowEvent(event) || event.IsAllowed() )
+    {
+        if ( HasFlag(wxTR_MULTIPLE) )

         {
         {

-            if ( !TreeView_SelectItem(GetHwnd(), HITEM(item)) )
+            if ( !::SelectItem(GetHwnd(), HITEM(item), select) )

             {
                 wxLogLastError(wxT("TreeView_SelectItem"));
             {
                 wxLogLastError(wxT("TreeView_SelectItem"));

+                return;

             }
             }

-            else
+        }
+        else // single selection
+        {
+            // use TreeView_SelectItem() to deselect the previous selection
+            if ( !TreeView_SelectItem(GetHwnd(), HITEM(item)) )

             {
             {

-                event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED);
-                (void)GetEventHandler()->ProcessEvent(event);
+                wxLogLastError(wxT("TreeView_SelectItem"));
+                return;

             }
         }
             }
         }

-        //else: program vetoed the change
+
+        event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED);
+        (void)HandleWindowEvent(event);

     }
     }

+    //else: program vetoed the change

 }
 
 void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item)
 {
 }
 
 void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item)
 {

+    wxCHECK_RET( !IsHiddenRoot(item), _T("can't show hidden root item") );
+

     // no error return
     TreeView_EnsureVisible(GetHwnd(), HITEM(item));
 }
     // no error return
     TreeView_EnsureVisible(GetHwnd(), HITEM(item));
 }


@@ -1637,26 +1769,8 @@ void wxTreeCtrl::ScrollTo(const wxTreeItemId& item)
     }
 }
 
     }
 }
 

-wxTextCtrl* wxTreeCtrl::GetEditControl() const
+wxTextCtrl *wxTreeCtrl::GetEditControl() const

 {
 {

-    // normally, we could try to do something like this to return something
-    // even when the editing was started by the user and not by calling
-    // EditLabel() - but as nobody has asked for this so far and there might be
-    // problems in the code below, I leave it disabled for now (VZ)
-#if 0
-    if ( !m_textCtrl )
-    {
-        HWND hwndText = TreeView_GetEditControl(GetHwnd());
-        if ( hwndText )
-        {
-            m_textCtrl = new wxTextCtrl(this, -1);
-            m_textCtrl->Hide();
-            m_textCtrl->SetHWND((WXHWND)hwndText);
-        }
-        //else: not editing label right now
-    }
-#endif // 0
-

     return m_textCtrl;
 }
 
     return m_textCtrl;
 }
 


@@ -1676,48 +1790,50 @@ void wxTreeCtrl::DeleteTextCtrl()
         m_textCtrl->SetHWND(0);
         delete m_textCtrl;
         m_textCtrl = NULL;
         m_textCtrl->SetHWND(0);
         delete m_textCtrl;
         m_textCtrl = NULL;

+
+        m_idEdited.Unset();

     }
 }
 
     }
 }
 

-wxTextCtrl* wxTreeCtrl::EditLabel(const wxTreeItemId& item,
-                                  wxClassInfo* textControlClass)
+wxTextCtrl *wxTreeCtrl::EditLabel(const wxTreeItemId& item,
+                                  wxClassInfo *textControlClass)

 {
     wxASSERT( textControlClass->IsKindOf(CLASSINFO(wxTextCtrl)) );
 
     DeleteTextCtrl();
 
 {
     wxASSERT( textControlClass->IsKindOf(CLASSINFO(wxTextCtrl)) );
 
     DeleteTextCtrl();
 

+    m_idEdited = item;
+    m_textCtrl = (wxTextCtrl *)textControlClass->CreateObject();

     HWND hWnd = (HWND) TreeView_EditLabel(GetHwnd(), HITEM(item));
 
     // this is not an error - the TVN_BEGINLABELEDIT handler might have
     HWND hWnd = (HWND) TreeView_EditLabel(GetHwnd(), HITEM(item));
 
     // this is not an error - the TVN_BEGINLABELEDIT handler might have

-    // returned FALSE
+    // returned false

     if ( !hWnd )
     {
     if ( !hWnd )
     {

+        delete m_textCtrl;
+        m_textCtrl = NULL;

         return NULL;
     }
 
         return NULL;
     }
 

-    m_textCtrl = (wxTextCtrl *)textControlClass->CreateObject();
-    m_textCtrl->SetParent(this);
-    m_textCtrl->SetHWND((WXHWND)hWnd);
-    m_textCtrl->SubclassWin((WXHWND)hWnd);
-
+    // textctrl is subclassed in MSWOnNotify

     return m_textCtrl;
 }
 
 // End label editing, optionally cancelling the edit
     return m_textCtrl;
 }
 
 // End label editing, optionally cancelling the edit

-void wxTreeCtrl::EndEditLabel(const wxTreeItemId& WXUNUSED(item), bool discardChanges)
+void wxTreeCtrl::DoEndEditLabel(bool discardChanges)

 {
     TreeView_EndEditLabelNow(GetHwnd(), discardChanges);
 
     DeleteTextCtrl();
 }
 
 {
     TreeView_EndEditLabelNow(GetHwnd(), discardChanges);
 
     DeleteTextCtrl();
 }
 

-wxTreeItemId wxTreeCtrl::HitTest(const wxPoint& point, int& flags)
+wxTreeItemId wxTreeCtrl::DoTreeHitTest(const wxPoint& point, int& flags) const

 {
     TV_HITTESTINFO hitTestInfo;
     hitTestInfo.pt.x = (int)point.x;
     hitTestInfo.pt.y = (int)point.y;
 
 {
     TV_HITTESTINFO hitTestInfo;
     hitTestInfo.pt.x = (int)point.x;
     hitTestInfo.pt.y = (int)point.y;
 

-    TreeView_HitTest(GetHwnd(), &hitTestInfo);
+    (void) TreeView_HitTest(GetHwnd(), &hitTestInfo);

 
     flags = 0;
 
 
     flags = 0;
 


@@ -1739,7 +1855,7 @@ wxTreeItemId wxTreeCtrl::HitTest(const wxPoint& point, int& flags)
 
     #undef TRANSLATE_FLAG
 
 
     #undef TRANSLATE_FLAG
 

-    return wxTreeItemId((WXHTREEITEM) hitTestInfo.hItem);
+    return wxTreeItemId(hitTestInfo.hItem);

 }
 
 bool wxTreeCtrl::GetBoundingRect(const wxTreeItemId& item,
 }
 
 bool wxTreeCtrl::GetBoundingRect(const wxTreeItemId& item,


@@ -1747,17 +1863,24 @@ bool wxTreeCtrl::GetBoundingRect(const wxTreeItemId& item,
                                  bool textOnly) const
 {
     RECT rc;
                                  bool textOnly) const
 {
     RECT rc;

+
+    // Virtual root items have no bounding rectangle
+    if ( IS_VIRTUAL_ROOT(item) )
+    {
+        return false;
+    }
+

     if ( TreeView_GetItemRect(GetHwnd(), HITEM(item),
                               &rc, textOnly) )
     {
         rect = wxRect(wxPoint(rc.left, rc.top), wxPoint(rc.right, rc.bottom));
 
     if ( TreeView_GetItemRect(GetHwnd(), HITEM(item),
                               &rc, textOnly) )
     {
         rect = wxRect(wxPoint(rc.left, rc.top), wxPoint(rc.right, rc.bottom));
 

-        return TRUE;
+        return true;

     }
     else
     {
         // couldn't retrieve rect: for example, item isn't visible
     }
     else
     {
         // couldn't retrieve rect: for example, item isn't visible

-        return FALSE;
+        return false;

     }
 }
 
     }
 }
 


@@ -1773,16 +1896,10 @@ public:
     static int CALLBACK Compare(LPARAM data1, LPARAM data2, LPARAM tree);
 
 private:
     static int CALLBACK Compare(LPARAM data1, LPARAM data2, LPARAM tree);
 
 private:

-    static wxTreeItemId GetIdFromData(wxTreeCtrl *tree, LPARAM item)
+    static wxTreeItemId GetIdFromData(LPARAM lParam)

     {
     {

-        wxTreeItemData *data = (wxTreeItemData *)item;
-        if ( tree->IsDataIndirect(data) )
-        {
-            data = ((wxTreeItemIndirectData *)data)->GetData();
+        return ((wxTreeItemParam*)lParam)->GetItem();

         }
         }

-
-        return data->GetId();
-    }

 };
 
 int CALLBACK wxTreeSortHelper::Compare(LPARAM pItem1,
 };
 
 int CALLBACK wxTreeSortHelper::Compare(LPARAM pItem1,


@@ -1794,21 +1911,21 @@ int CALLBACK wxTreeSortHelper::Compare(LPARAM pItem1,
 
     wxTreeCtrl *tree = (wxTreeCtrl *)htree;
 
 
     wxTreeCtrl *tree = (wxTreeCtrl *)htree;
 

-    return tree->OnCompareItems(GetIdFromData(tree, pItem1),
-                                GetIdFromData(tree, pItem2));
-}
-
-int wxTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
-                               const wxTreeItemId& item2)
-{
-    return wxStrcmp(GetItemText(item1), GetItemText(item2));
+    return tree->OnCompareItems(GetIdFromData(pItem1),
+                                GetIdFromData(pItem2));

 }
 
 void wxTreeCtrl::SortChildren(const wxTreeItemId& item)
 {
 }
 
 void wxTreeCtrl::SortChildren(const wxTreeItemId& item)
 {

+    wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+

     // rely on the fact that TreeView_SortChildren does the same thing as our
     // default behaviour, i.e. sorts items alphabetically and so call it
     // directly if we're not in derived class (much more efficient!)
     // rely on the fact that TreeView_SortChildren does the same thing as our
     // default behaviour, i.e. sorts items alphabetically and so call it
     // directly if we're not in derived class (much more efficient!)

+    // RN: Note that if you find you're code doesn't sort as expected this
+    //     may be why as if you don't use the DECLARE_CLASS/IMPLEMENT_CLASS
+    //     combo for your derived wxTreeCtrl if will sort without
+    //     OnCompareItems

     if ( GetClassInfo() == CLASSINFO(wxTreeCtrl) )
     {
         TreeView_SortChildren(GetHwnd(), HITEM(item), 0);
     if ( GetClassInfo() == CLASSINFO(wxTreeCtrl) )
     {
         TreeView_SortChildren(GetHwnd(), HITEM(item), 0);


@@ -1827,8 +1944,26 @@ void wxTreeCtrl::SortChildren(const wxTreeItemId& item)
 // implementation
 // ----------------------------------------------------------------------------
 
 // implementation
 // ----------------------------------------------------------------------------
 

-bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id)
+bool wxTreeCtrl::MSWShouldPreProcessMessage(WXMSG* msg)

 {
 {

+    if ( msg->message == WM_KEYDOWN )
+    {
+        // Only eat VK_RETURN if not being used by the application in
+        // conjunction with modifiers
+        if ( (msg->wParam == VK_RETURN) && !wxIsAnyModifierDown() )
+        {
+            // we need VK_RETURN to generate wxEVT_COMMAND_TREE_ITEM_ACTIVATED
+            return false;
+        }
+    }
+
+    return wxTreeCtrlBase::MSWShouldPreProcessMessage(msg);
+}
+
+bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id_)
+{
+    const int id = (signed short)id_;
+

     if ( cmd == EN_UPDATE )
     {
         wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, id);
     if ( cmd == EN_UPDATE )
     {
         wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, id);


@@ -1844,50 +1979,106 @@ bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id)
     else
     {
         // nothing done
     else
     {
         // nothing done

-        return FALSE;
+        return false;

     }
 
     // command processed
     }
 
     // command processed

-    return TRUE;
+    return true;

 }
 
 // we hook into WndProc to process WM_MOUSEMOVE/WM_BUTTONUP messages - as we
 // 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
 }
 
 // we hook into WndProc to process WM_MOUSEMOVE/WM_BUTTONUP messages - as we
 // 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;
-    long rc = 0;
-    bool isMultiple = (GetWindowStyle() & wxTR_MULTIPLE) != 0;
+    bool processed = false;
+    WXLRESULT rc = 0;
+    bool isMultiple = HasFlag(wxTR_MULTIPLE);

 
 

-    if ( (nMsg >= WM_MOUSEFIRST) && (nMsg <= WM_MOUSELAST) )
+    // This message is sent after a right-click, or when the "menu" key is pressed
+    if ( nMsg == WM_CONTEXTMENU )

     {
     {

-        // we only process mouse messages here and these parameters have the same
-        // meaning for all of them

         int x = GET_X_LPARAM(lParam),
             y = GET_Y_LPARAM(lParam);
         int x = GET_X_LPARAM(lParam),
             y = GET_Y_LPARAM(lParam);

-        HTREEITEM htItem = GetItemFromPoint(GetHwnd(), x, y);
+
+        // the item for which the menu should be shown
+        wxTreeItemId item;
+
+        // the position where the menu should be shown in client coordinates
+        // (so that it can be passed directly to PopupMenu())
+        wxPoint pt;
+
+        if ( x == -1 || y == -1 )
+        {
+            // this means that the event was generated from keyboard (e.g. with
+            // Shift-F10 or special Windows menu key)
+            //
+            // use the Explorer standard of putting the menu at the left edge
+            // of the text, in the vertical middle of the text
+            item = wxTreeItemId(TreeView_GetSelection(GetHwnd()));
+            if ( item.IsOk() )
+            {
+                // Use the bounding rectangle of only the text part
+                wxRect rect;
+                GetBoundingRect(item, rect, true);
+                pt = wxPoint(rect.GetX(), rect.GetY() + rect.GetHeight() / 2);
+            }
+        }
+        else // event from mouse, use mouse position
+        {
+            pt = ScreenToClient(wxPoint(x, y));
+
+            TV_HITTESTINFO tvhti;
+            tvhti.pt.x = pt.x;
+            tvhti.pt.y = pt.y;
+            if ( TreeView_HitTest(GetHwnd(), &tvhti) )
+                item = wxTreeItemId(tvhti.hItem);
+        }
+
+        // create the event
+        wxTreeEvent event(wxEVT_COMMAND_TREE_ITEM_MENU, this, item);
+
+        event.m_pointDrag = pt;
+
+        if ( HandleWindowEvent(event) )
+            processed = true;
+        //else: continue with generating wxEVT_CONTEXT_MENU in base class code
+    }
+    else if ( (nMsg >= WM_MOUSEFIRST) && (nMsg <= WM_MOUSELAST) )
+    {
+        // we only process mouse messages here and these parameters have the
+        // same meaning for all of them
+        int x = GET_X_LPARAM(lParam),
+            y = GET_Y_LPARAM(lParam);
+
+        TV_HITTESTINFO tvht;
+        tvht.pt.x = x;
+        tvht.pt.y = y;
+
+        HTREEITEM htItem = TreeView_HitTest(GetHwnd(), &tvht);

 
         switch ( nMsg )
         {
 
         switch ( nMsg )
         {

-#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE

             case WM_LBUTTONDOWN:
             case WM_LBUTTONDOWN:

-                if ( htItem && isMultiple )
+                if ( htItem && isMultiple && (tvht.flags & TVHT_ONITEM) != 0 )

                 {
                 {

+                    m_htClickedItem = (WXHTREEITEM) htItem;
+                    m_ptClick = wxPoint(x, y);
+

                     if ( wParam & MK_CONTROL )
                     {
                         SetFocus();
 
                         // toggle selected state
                     if ( wParam & MK_CONTROL )
                     {
                         SetFocus();
 
                         // toggle selected state

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

 
                         ::SetFocus(GetHwnd(), htItem);
 
                         // reset on any click without Shift
 
                         ::SetFocus(GetHwnd(), htItem);
 
                         // reset on any click without Shift

-                        m_htSelStart = 0;
+                        m_htSelStart.Unset();

 
 

-                        processed = TRUE;
+                        processed = true;

                     }
                     else if ( wParam & MK_SHIFT )
                     {
                     }
                     else if ( wParam & MK_SHIFT )
                     {


@@ -1897,35 +2088,149 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
                         if ( !m_htSelStart )
                         {
                             // take the focused item
                         if ( !m_htSelStart )
                         {
                             // take the focused item

-                            m_htSelStart = (WXHTREEITEM)
-                                TreeView_GetSelection(GetHwnd());
+                            m_htSelStart = TreeView_GetSelection(GetHwnd());

                         }
 
                         }
 

-                        SelectRange(GetHwnd(), HITEM(m_htSelStart), htItem,
+                        if ( m_htSelStart )
+                            SelectRange(GetHwnd(), HITEM(m_htSelStart), htItem,

                                     !(wParam & MK_CONTROL));
                                     !(wParam & MK_CONTROL));

+                        else
+                            ::SelectItem(GetHwnd(), htItem);

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

-                        processed = TRUE;
+                        processed = true;

                     }
                     else // normal click
                     {
                     }
                     else // normal click
                     {

-                        // clear the selection and then let the default handler
-                        // do the job
-                        UnselectAll();
+                        // avoid doing anything if we click on the only
+                        // currently selected item

 
 

-                        // prevent the click from starting in-place editing
-                        // when there was no selection in the control
-                        TreeView_SelectItem(GetHwnd(), 0);
+                        SetFocus();
+
+                        wxArrayTreeItemIds selections;
+                        size_t count = GetSelections(selections);
+                        if ( count == 0 ||
+                             count > 1 ||
+                             HITEM(selections[0]) != htItem )
+                        {
+                            // clear the previously selected items, if the
+                            // 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))
+                            {
+                                UnselectAll();
+
+                                // prevent the click from starting in-place editing
+                                // which should only happen if we click on the
+                                // already selected item (and nothing else is
+                                // selected)
+
+                                TreeView_SelectItem(GetHwnd(), 0);
+                                ::SelectItem(GetHwnd(), htItem);
+                            }
+                            ::SetFocus(GetHwnd(), htItem);
+                            processed = true;
+                        }
+                        else // click on a single selected item
+                        {
+                            // don't interfere with the default processing in
+                            // WM_MOUSEMOVE handler below as the default window
+                            // proc will start the drag itself if we let have
+                            // WM_LBUTTONDOWN
+                            m_htClickedItem.Unset();
+                        }

 
                         // reset on any click without Shift
 
                         // reset on any click without Shift

-                        m_htSelStart = 0;
+                        m_htSelStart.Unset();

                     }
                 }
                 break;
                     }
                 }
                 break;

-#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+
+            case WM_RBUTTONDOWN:
+                // default handler removes the highlight from the currently
+                // focused item when right mouse button is pressed on another
+                // one but keeps the remaining items highlighted, which is
+                // confusing, so override this default behaviour for tree with
+                // multiple selections
+                if ( isMultiple )
+                {
+                    if ( !IsItemSelected(GetHwnd(), htItem) )
+                    {
+                        UnselectAll();
+                        SelectItem(htItem);
+                        ::SetFocus(GetHwnd(), htItem);
+                    }
+
+                    // fire EVT_RIGHT_DOWN
+                    HandleMouseEvent(nMsg, x, y, wParam);
+
+                    // send NM_RCLICK
+                    NMHDR nmhdr;
+                    nmhdr.hwndFrom = GetHwnd();
+                    nmhdr.idFrom = ::GetWindowLong(GetHwnd(), GWL_ID);
+                    nmhdr.code = NM_RCLICK;
+                    ::SendMessage(::GetParent(GetHwnd()), WM_NOTIFY,
+                                  nmhdr.idFrom, (LPARAM)&nmhdr);
+
+                    // prevent tree control default processing, as we've
+                    // already done everything
+                    processed = true;
+                }
+                break;

 
             case WM_MOUSEMOVE:
 
             case WM_MOUSEMOVE:

+#ifndef __WXWINCE__
+                if ( m_htClickedItem )
+                {
+                    int cx = abs(m_ptClick.x - x);
+                    int cy = abs(m_ptClick.y - y);
+
+                    if ( cx > ::GetSystemMetrics(SM_CXDRAG) ||
+                            cy > ::GetSystemMetrics(SM_CYDRAG) )
+                    {
+                        NM_TREEVIEW tv;
+                        wxZeroMemory(tv);
+
+                        tv.hdr.hwndFrom = GetHwnd();
+                        tv.hdr.idFrom = ::GetWindowLong(GetHwnd(), GWL_ID);
+                        tv.hdr.code = TVN_BEGINDRAG;
+
+                        tv.itemNew.hItem = HITEM(m_htClickedItem);
+
+
+                        TVITEM tviAux;
+                        wxZeroMemory(tviAux);
+
+                        tviAux.hItem = HITEM(m_htClickedItem);
+                        tviAux.mask = TVIF_STATE | TVIF_PARAM;
+                        tviAux.stateMask = 0xffffffff;
+                        TreeView_GetItem(GetHwnd(), &tviAux);
+
+                        tv.itemNew.state = tviAux.state;
+                        tv.itemNew.lParam = tviAux.lParam;
+
+                        tv.ptDrag.x = x;
+                        tv.ptDrag.y = y;
+
+                        // do it before SendMessage() call below to avoid
+                        // reentrancies here if there is another WM_MOUSEMOVE
+                        // in the queue already
+                        m_htClickedItem.Unset();
+
+                        ::SendMessage(GetHwndOf(GetParent()), WM_NOTIFY,
+                                      tv.hdr.idFrom, (LPARAM)&tv );
+
+                        // don't pass it to the default window proc, it would
+                        // start dragging again
+                        processed = true;
+                    }
+                }
+#endif // __WXWINCE__
+
+#if wxUSE_DRAGIMAGE

                 if ( m_dragImage )
                 {
                     m_dragImage->Move(wxPoint(x, y));
                 if ( m_dragImage )
                 {
                     m_dragImage->Move(wxPoint(x, y));


@@ -1938,10 +2243,33 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
                         m_dragImage->Show();
                     }
                 }
                         m_dragImage->Show();
                     }
                 }

+#endif // wxUSE_DRAGIMAGE

                 break;
 
             case WM_LBUTTONUP:
                 break;
 
             case WM_LBUTTONUP:

+
+                // facilitates multiple drag-and-drop
+                if (htItem && isMultiple)
+                {
+                    wxArrayTreeItemIds selections;
+                    size_t count = GetSelections(selections);
+
+                    if (count > 1 &&
+                        !(wParam & MK_CONTROL) &&
+                        !(wParam & MK_SHIFT))
+                    {
+                        UnselectAll();
+                        TreeView_SelectItem(GetHwnd(), htItem);
+                        ::SelectItem(GetHwnd(), htItem);
+                        ::SetFocus(GetHwnd(), htItem);
+                    }
+                    m_htClickedItem.Unset();
+                }
+
+                // fall through
+

             case WM_RBUTTONUP:
             case WM_RBUTTONUP:

+#if wxUSE_DRAGIMAGE

                 if ( m_dragImage )
                 {
                     m_dragImage->EndDrag();
                 if ( m_dragImage )
                 {
                     m_dragImage->EndDrag();


@@ -1949,22 +2277,19 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
                     m_dragImage = NULL;
 
                     // generate the drag end event
                     m_dragImage = NULL;
 
                     // generate the drag end event

-                    wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, m_windowId);
-
-                    event.m_item = (WXHTREEITEM)htItem;
+                    wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, this, htItem);

                     event.m_pointDrag = wxPoint(x, y);
                     event.m_pointDrag = wxPoint(x, y);

-                    event.SetEventObject(this);

 
 

-                    (void)GetEventHandler()->ProcessEvent(event);
+                    (void)HandleWindowEvent(event);

 
                     // if we don't do it, the tree seems to think that 2 items
                     // are selected simultaneously which is quite weird
                     TreeView_SelectDropTarget(GetHwnd(), 0);
                 }
 
                     // if we don't do it, the tree seems to think that 2 items
                     // are selected simultaneously which is quite weird
                     TreeView_SelectDropTarget(GetHwnd(), 0);
                 }

+#endif // wxUSE_DRAGIMAGE

                 break;
         }
     }
                 break;
         }
     }

-#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE

     else if ( (nMsg == WM_SETFOCUS || nMsg == WM_KILLFOCUS) && isMultiple )
     {
         // the tree control greys out the selected item when it loses focus and
     else if ( (nMsg == WM_SETFOCUS || nMsg == WM_KILLFOCUS) && isMultiple )
     {
         // the tree control greys out the selected item when it loses focus and


@@ -1975,7 +2300,7 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
         RECT rect;
         for ( size_t n = 0; n < count; n++ )
         {
         RECT rect;
         for ( size_t n = 0; n < count; n++ )
         {

-            // TreeView_GetItemRect() will return FALSE if item is not visible,
+            // TreeView_GetItemRect() will return false if item is not visible,

             // which may happen perfectly well
             if ( TreeView_GetItemRect(GetHwnd(), HITEM(selections[n]),
                                       &rect, TRUE) )
             // which may happen perfectly well
             if ( TreeView_GetItemRect(GetHwnd(), HITEM(selections[n]),
                                       &rect, TRUE) )


@@ -1989,77 +2314,145 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
         bool bCtrl = wxIsCtrlDown(),
              bShift = wxIsShiftDown();
 
         bool bCtrl = wxIsCtrlDown(),
              bShift = wxIsShiftDown();
 

-        // we handle.arrows and space, but not page up/down and home/end: the
-        // latter should be easy, but not the former
-

         HTREEITEM htSel = (HTREEITEM)TreeView_GetSelection(GetHwnd());
         HTREEITEM htSel = (HTREEITEM)TreeView_GetSelection(GetHwnd());

-        if ( !m_htSelStart )
+        switch ( wParam )

         {
         {

-            m_htSelStart = (WXHTREEITEM)htSel;
-        }
-
-        if ( wParam == VK_SPACE )
-        {
-            if ( bCtrl )
-            {
-                ToggleItemSelection(GetHwnd(), htSel);
-            }
-            else
-            {
-                UnselectAll();
-
-                ::SelectItem(GetHwnd(), htSel);
-            }
+            case VK_SPACE:
+                if ( bCtrl )
+                {
+                    ToggleItemSelection(htSel);
+                }
+                else
+                {
+                    UnselectAll();

 
 

-            processed = TRUE;
-        }
-        else if ( wParam == VK_UP || wParam == VK_DOWN )
-        {
-            if ( !bCtrl && !bShift )
-            {
-                // no modifiers, just clear selection and then let the default
-                // processing to take place
-                UnselectAll();
-            }
-            else if ( htSel )
-            {
-                (void)wxControl::MSWWindowProc(nMsg, wParam, lParam);
+                    ::SelectItem(GetHwnd(), htSel);
+                }

 
 

-                HTREEITEM htNext = (HTREEITEM)(wParam == VK_UP
-                                    ? TreeView_GetPrevVisible(GetHwnd(), htSel)
-                                    : TreeView_GetNextVisible(GetHwnd(), htSel));
+                processed = true;
+                break;

 
 

-                if ( !htNext )
+            case VK_UP:
+            case VK_DOWN:
+                if ( !bCtrl && !bShift )

                 {
                 {

-                    // at the top/bottom
-                    htNext = htSel;
+                    // no modifiers, just clear selection and then let the default
+                    // processing to take place
+                    UnselectAll();

                 }
                 }

-
-                if ( bShift )
+                else if ( htSel )

                 {
                 {

-                    SelectRange(GetHwnd(), HITEM(m_htSelStart), htNext);
+                    (void)wxControl::MSWWindowProc(nMsg, wParam, lParam);
+
+                    HTREEITEM htNext = (HTREEITEM)
+                        TreeView_GetNextItem
+                        (
+                            GetHwnd(),
+                            htSel,
+                            wParam == VK_UP ? TVGN_PREVIOUSVISIBLE
+                                            : TVGN_NEXTVISIBLE
+                        );
+
+                    if ( !htNext )
+                    {
+                        // at the top/bottom
+                        htNext = htSel;
+                    }
+
+                    if ( bShift )
+                    {
+                        if ( !m_htSelStart )
+                            m_htSelStart = htSel;
+
+                        SelectRange(GetHwnd(), HITEM(m_htSelStart), htNext);
+                    }
+                    else // bCtrl
+                    {
+                        // without changing selection
+                        ::SetFocus(GetHwnd(), htNext);
+                    }
+
+                    processed = true;

                 }
                 }

-                else // bCtrl
+                break;
+
+            case VK_HOME:
+            case VK_END:
+            case VK_PRIOR:
+            case VK_NEXT:
+                // TODO: handle Shift/Ctrl with these keys
+                if ( !bCtrl && !bShift )

                 {
                 {

-                    // without changing selection
-                    ::SetFocus(GetHwnd(), htNext);
+                    UnselectAll();
+
+                    m_htSelStart.Unset();

                 }
                 }

+        }
+    }
+    else if ( nMsg == WM_COMMAND )
+    {
+        // if we receive a EN_KILLFOCUS command from the in-place edit control
+        // used for label editing, make sure to end editing
+        WORD id, cmd;
+        WXHWND hwnd;
+        UnpackCommand(wParam, lParam, &id, &hwnd, &cmd);
+
+        if ( cmd == EN_KILLFOCUS )
+        {
+            if ( m_textCtrl && m_textCtrl->GetHandle() == hwnd )
+            {
+                DoEndEditLabel();

 
 

-                processed = TRUE;
+                processed = true;

             }
         }
     }
             }
         }
     }

-#endif // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
+

     if ( !processed )
         rc = wxControl::MSWWindowProc(nMsg, wParam, lParam);
 
     return rc;
 }
 
     if ( !processed )
         rc = wxControl::MSWWindowProc(nMsg, wParam, lParam);
 
     return rc;
 }
 

+WXLRESULT
+wxTreeCtrl::MSWDefWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+{
+    if ( nMsg == WM_CHAR )
+    {
+        // don't let the control process Space and Return keys because it
+        // doesn't do anything useful with them anyhow but always beeps
+        // annoyingly when it receives them and there is no way to turn it off
+        // simply if you just process TREEITEM_ACTIVATED event to which Space
+        // and Enter presses are mapped in your code
+        if ( wParam == VK_SPACE || wParam == VK_RETURN )
+            return 0;
+    }
+#if wxUSE_DRAGIMAGE
+    else if ( nMsg == WM_KEYDOWN )
+    {
+        if ( wParam == VK_ESCAPE )
+        {
+            if ( m_dragImage )
+            {
+                m_dragImage->EndDrag();
+                delete m_dragImage;
+                m_dragImage = NULL;
+
+                // if we don't do it, the tree seems to think that 2 items
+                // are selected simultaneously which is quite weird
+                TreeView_SelectDropTarget(GetHwnd(), 0);
+            }
+        }
+    }
+#endif // wxUSE_DRAGIMAGE
+
+    return wxControl::MSWDefWindowProc(nMsg, wParam, lParam);
+}
+

 // process WM_NOTIFY Windows message
 bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 {
 // process WM_NOTIFY Windows message
 bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 {

-    wxTreeEvent event(wxEVT_NULL, m_windowId);
+    wxTreeEvent event(wxEVT_NULL, this);

     wxEventType eventType = wxEVT_NULL;
     NMHDR *hdr = (NMHDR *)lParam;
 
     wxEventType eventType = wxEVT_NULL;
     NMHDR *hdr = (NMHDR *)lParam;
 


@@ -2077,7 +2470,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 
                 NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;
 
 
                 NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;
 

-                event.m_item = (WXHTREEITEM) tv->itemNew.hItem;
+                event.m_item = tv->itemNew.hItem;

                 event.m_pointDrag = wxPoint(tv->ptDrag.x, tv->ptDrag.y);
 
                 // don't allow dragging by default: the user code must
                 event.m_pointDrag = wxPoint(tv->ptDrag.x, tv->ptDrag.y);
 
                 // don't allow dragging by default: the user code must


@@ -2092,8 +2485,13 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 eventType = wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT;
                 TV_DISPINFO *info = (TV_DISPINFO *)lParam;
 
                 eventType = wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT;
                 TV_DISPINFO *info = (TV_DISPINFO *)lParam;
 

-                event.m_item = (WXHTREEITEM) info->item.hItem;
+                // although the user event handler may still veto it, it is
+                // important to set it now so that calls to SetItemText() from
+                // the event handler would change the text controls contents
+                m_idEdited =
+                event.m_item = info->item.hItem;

                 event.m_label = info->item.pszText;
                 event.m_label = info->item.pszText;

+                event.m_editCancelled = false;

             }
             break;
 
             }
             break;
 


@@ -2102,12 +2500,16 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 eventType = wxEVT_COMMAND_TREE_DELETE_ITEM;
                 NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;
 
                 eventType = wxEVT_COMMAND_TREE_DELETE_ITEM;
                 NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;
 

-                event.m_item = (WXHTREEITEM)tv->itemOld.hItem;
+                event.m_item = tv->itemOld.hItem;

 
                 if ( m_hasAnyAttr )
                 {
 
                 if ( m_hasAnyAttr )
                 {

-                    delete (wxTreeItemAttr *)m_attrs.
-                                Delete((long)tv->itemOld.hItem);
+                    wxMapTreeAttr::iterator it = m_attrs.find(tv->itemOld.hItem);
+                    if ( it != m_attrs.end() )
+                    {
+                        delete it->second;
+                        m_attrs.erase(it);
+                    }

                 }
             }
             break;
                 }
             }
             break;


@@ -2117,13 +2519,38 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 eventType = wxEVT_COMMAND_TREE_END_LABEL_EDIT;
                 TV_DISPINFO *info = (TV_DISPINFO *)lParam;
 
                 eventType = wxEVT_COMMAND_TREE_END_LABEL_EDIT;
                 TV_DISPINFO *info = (TV_DISPINFO *)lParam;
 

-                event.m_item = (WXHTREEITEM)info->item.hItem;
+                event.m_item = info->item.hItem;

                 event.m_label = info->item.pszText;
                 event.m_label = info->item.pszText;

-                if (info->item.pszText == NULL)
-                    return 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;
             }
 

+#ifdef TVN_GETINFOTIP
+        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 // TVN_GETINFOTIP
+#endif // !__WXWINCE__
+

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


@@ -2136,14 +2563,14 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 
                 TV_DISPINFO *info = (TV_DISPINFO *)lParam;
 
 
                 TV_DISPINFO *info = (TV_DISPINFO *)lParam;
 

-                event.m_item = (WXHTREEITEM) info->item.hItem;
+                event.m_item = info->item.hItem;

                 break;
             }
 
         case TVN_ITEMEXPANDING:
         case TVN_ITEMEXPANDED:
             {
                 break;
             }
 
         case TVN_ITEMEXPANDING:
         case TVN_ITEMEXPANDED:
             {

-                NM_TREEVIEW* tv = (NM_TREEVIEW*)lParam;
+                NM_TREEVIEW *tv = (NM_TREEVIEW*)lParam;

 
                 int what;
                 switch ( tv->action )
 
                 int what;
                 switch ( tv->action )


@@ -2161,12 +2588,12 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                         break;
                 }
 
                         break;
                 }
 

-                int how = (int)hdr->code == TVN_ITEMEXPANDING ? IDX_DOING
-                                                              : IDX_DONE;
+                int how = hdr->code == TVN_ITEMEXPANDING ? IDX_DOING
+                                                         : IDX_DONE;

 
                 eventType = gs_expandEvents[what][how];
 
 
                 eventType = gs_expandEvents[what][how];
 

-                event.m_item = (WXHTREEITEM) tv->itemNew.hItem;
+                event.m_item = tv->itemNew.hItem;

             }
             break;
 
             }
             break;
 


@@ -2175,50 +2602,118 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 eventType = wxEVT_COMMAND_TREE_KEY_DOWN;
                 TV_KEYDOWN *info = (TV_KEYDOWN *)lParam;
 
                 eventType = wxEVT_COMMAND_TREE_KEY_DOWN;
                 TV_KEYDOWN *info = (TV_KEYDOWN *)lParam;
 

-                // we pass 0 as last CreateKeyEvent() parameter because we
-                // don't have access to the real key press flags here - but as
-                // it is only used to determin wxKeyEvent::m_altDown flag it's
-                // not too bad
+                // fabricate the lParam and wParam parameters sufficiently
+                // similar to the ones from a "real" WM_KEYDOWN so that
+                // CreateKeyEvent() works correctly
+                WXLPARAM lParam = (wxIsAltDown() ? KF_ALTDOWN : 0) << 16;
+
+                WXWPARAM wParam = info->wVKey;
+
+                int keyCode = wxCharCodeMSWToWX(wParam);
+                if ( !keyCode )
+                {
+                    // wxCharCodeMSWToWX() returns 0 to indicate that this is a
+                    // simple ASCII key
+                    keyCode = wParam;
+                }
+

                 event.m_evtKey = CreateKeyEvent(wxEVT_KEY_DOWN,
                 event.m_evtKey = CreateKeyEvent(wxEVT_KEY_DOWN,

-                                                wxCharCodeMSWToWX(info->wVKey),
-                                                0);
+                                                keyCode,
+                                                lParam,
+                                                wParam);

 
                 // a separate event for Space/Return
 
                 // a separate event for Space/Return

-                if ( !wxIsCtrlDown() && !wxIsShiftDown() &&
+                if ( !wxIsAnyModifierDown() &&

                      ((info->wVKey == VK_SPACE) || (info->wVKey == VK_RETURN)) )
                 {
                      ((info->wVKey == VK_SPACE) || (info->wVKey == VK_RETURN)) )
                 {

-                    wxTreeEvent event2(wxEVT_COMMAND_TREE_ITEM_ACTIVATED,
-                                       m_windowId);
-                    event2.SetEventObject(this);
-                    if ( !(GetWindowStyle() & wxTR_MULTIPLE) )
-                    {
-                        event2.m_item = GetSelection();
-                    }
-                    //else: don't know how to get it
+                   wxTreeItemId item;
+                   if ( !HasFlag(wxTR_MULTIPLE) )
+                       item = GetSelection();

 
 

-                    (void)GetEventHandler()->ProcessEvent(event2);
+                   wxTreeEvent event2(wxEVT_COMMAND_TREE_ITEM_ACTIVATED,
+                                        this, item);
+                   (void)HandleWindowEvent(event2);

                 }
             }
             break;
 
                 }
             }
             break;
 

-        case TVN_SELCHANGED:
+
+        // Vista's tree control has introduced some problems with our
+        // multi-selection tree.  When TreeView_SelectItem() is called,
+        // the wrong items are deselected.
+
+        // Fortunately, Vista provides a new notification, TVN_ITEMCHANGING
+        // that can be used to regulate this incorrect behavior.  The
+        // following messages will allow only the unlocked item's selection
+        // state to change
+        case TVN_ITEMCHANGINGA:
+        case TVN_ITEMCHANGINGW:
+            {
+                // we only need to handles these in multi-select trees
+                if ( HasFlag(wxTR_MULTIPLE) )
+                {
+                    // get info about the item about to be changed
+                    NMTVITEMCHANGE* info = (NMTVITEMCHANGE*)lParam;
+                    if (info->hItem != gs_unlockItem)
+                    {
+                        // item's state is locked, don't allow the change
+                        // returning 1 will disallow the change
+                        *result = 1;
+                        return true;
+                    }
+                }
+
+                // allow the state change
+            }
+            return false;
+
+        // 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:
+        case TVN_SELCHANGEDW:

             eventType = wxEVT_COMMAND_TREE_SEL_CHANGED;
             // fall through
 
             eventType = wxEVT_COMMAND_TREE_SEL_CHANGED;
             // fall through
 

-        case TVN_SELCHANGING:
+        case TVN_SELCHANGINGA:
+        case TVN_SELCHANGINGW:

             {
                 if ( eventType == wxEVT_NULL )
                     eventType = wxEVT_COMMAND_TREE_SEL_CHANGING;
                 //else: already set above
 
             {
                 if ( eventType == wxEVT_NULL )
                     eventType = wxEVT_COMMAND_TREE_SEL_CHANGING;
                 //else: already set above
 

-                NM_TREEVIEW* tv = (NM_TREEVIEW *)lParam;
-
-                event.m_item = (WXHTREEITEM) tv->itemNew.hItem;
-                event.m_itemOld = (WXHTREEITEM) tv->itemOld.hItem;
+                if (hdr->code == TVN_SELCHANGINGW ||
+                    hdr->code == TVN_SELCHANGEDW)
+                {
+                    NM_TREEVIEWW *tv = (NM_TREEVIEWW *)lParam;
+                    event.m_item = tv->itemNew.hItem;
+                    event.m_itemOld = tv->itemOld.hItem;
+                }
+                else
+                {
+                    NM_TREEVIEWA *tv = (NM_TREEVIEWA *)lParam;
+                    event.m_item = tv->itemNew.hItem;
+                    event.m_itemOld = tv->itemOld.hItem;
+                }

             }
             }

+
+            // we receive this message from WM_LBUTTONDOWN handler inside
+            // comctl32.dll and so before the click is passed to
+            // DefWindowProc() which sets the focus to the window which was
+            // clicked and this can lead to unexpected event sequences: for
+            // example, we may get a "selection change" event from the tree
+            // before getting a "kill focus" event for the text control which
+            // had the focus previously, thus breaking user code doing input
+            // validation
+            //
+            // to avoid such surprises, we force the generation of focus events
+            // now, before we generate the selection change ones
+            SetFocus();

             break;
 
             break;
 

-#if defined(_WIN32_IE) && _WIN32_IE >= 0x300 && !wxUSE_COMCTL32_SAFELY && !( defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 1, 0 ) )
+            // instead of explicitly checking for _WIN32_IE, check if the
+            // required symbols are available in the headers
+#if defined(CDDS_PREPAINT) && !wxUSE_COMCTL32_SAFELY

         case NM_CUSTOMDRAW:
             {
                 LPNMTVCUSTOMDRAW lptvcd = (LPNMTVCUSTOMDRAW)lParam;
         case NM_CUSTOMDRAW:
             {
                 LPNMTVCUSTOMDRAW lptvcd = (LPNMTVCUSTOMDRAW)lParam;


@@ -2234,73 +2729,61 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 
                     case CDDS_ITEMPREPAINT:
                         {
 
                     case CDDS_ITEMPREPAINT:
                         {

-                            wxTreeItemAttr *attr =
-                                (wxTreeItemAttr *)m_attrs.Get(nmcd.dwItemSpec);
+                            wxMapTreeAttr::iterator
+                                it = m_attrs.find((void *)nmcd.dwItemSpec);

 
 

-                            if ( !attr )
+                            if ( it == m_attrs.end() )

                             {
                                 // nothing to do for this item
                                 *result = CDRF_DODEFAULT;
                                 break;
                             }
 
                             {
                                 // nothing to do for this item
                                 *result = CDRF_DODEFAULT;
                                 break;
                             }
 

-                            HFONT hFont;
-                            wxColour colText, colBack;
-                            if ( attr->HasFont() )
-                            {
-                                wxFont font = attr->GetFont();
-                                hFont = (HFONT)font.GetResourceHandle();
-                            }
-                            else
-                            {
-                                hFont = 0;
-                            }
-
-                            if ( attr->HasTextColour() )
-                            {
-                                colText = attr->GetTextColour();
-                            }
-                            else
-                            {
-                                colText = GetForegroundColour();
-                            }
+                            wxTreeItemAttr * const attr = it->second;

 
 

-                            // selection colours should override ours
-                            if ( nmcd.uItemState & CDIS_SELECTED )
-                            {
-                                DWORD clrBk = ::GetSysColor(COLOR_HIGHLIGHT);
-                                lptvcd->clrTextBk = clrBk;
+                            wxTreeViewItem tvItem((void *)nmcd.dwItemSpec,
+                                                  TVIF_STATE, TVIS_DROPHILITED);
+                            DoGetItem(&tvItem);
+                            const UINT tvItemState = tvItem.state;

 
 

-                                // try to make the text visible
-                                lptvcd->clrText = wxColourToRGB(colText);
-                                lptvcd->clrText |= ~clrBk;
-                                lptvcd->clrText &= 0x00ffffff;
-                            }
-                            else
+                            // selection colours should override ours,
+                            // otherwise it is too confusing to the user
+                            if ( !(nmcd.uItemState & CDIS_SELECTED) &&
+                                 !(tvItemState & TVIS_DROPHILITED) )

                             {
                             {

+                                wxColour colBack;

                                 if ( attr->HasBackgroundColour() )
                                 {
                                     colBack = attr->GetBackgroundColour();
                                 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 ) &&
+                                 !(tvItemState & TVIS_DROPHILITED) )
+                            {
+                                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;
                             }


@@ -2313,8 +2796,25 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
             }
 
             // we always process it
             }
 
             // we always process it

-            return TRUE;
-#endif // _WIN32_IE >= 0x300
+            return true;
+#endif // have owner drawn support in headers
+
+        case NM_CLICK:
+            {
+                DWORD pos = GetMessagePos();
+                POINT point;
+                point.x = LOWORD(pos);
+                point.y = HIWORD(pos);
+                ::MapWindowPoints(HWND_DESKTOP, GetHwnd(), &point, 1);
+                int flags = 0;
+                wxTreeItemId item = HitTest(wxPoint(point.x, point.y), flags);
+                if (flags & wxTREE_HITTEST_ONITEMSTATEICON)
+                {
+                    event.m_item = item;
+                    eventType = wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK;
+                }
+                break;
+            }

 
         case NM_DBLCLK:
         case NM_RCLICK:
 
         case NM_DBLCLK:
         case NM_RCLICK:


@@ -2326,7 +2826,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 {
                     if ( tvhti.flags & TVHT_ONITEM )
                     {
                 {
                     if ( tvhti.flags & TVHT_ONITEM )
                     {

-                        event.m_item = (WXHTREEITEM) tvhti.hItem;
+                        event.m_item = tvhti.hItem;

                         eventType = (int)hdr->code == NM_DBLCLK
                                     ? wxEVT_COMMAND_TREE_ITEM_ACTIVATED
                                     : wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK;
                         eventType = (int)hdr->code == NM_DBLCLK
                                     ? wxEVT_COMMAND_TREE_ITEM_ACTIVATED
                                     : wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK;


@@ -2344,10 +2844,12 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
             return wxControl::MSWOnNotify(idCtrl, lParam, result);
     }
 
             return wxControl::MSWOnNotify(idCtrl, lParam, result);
     }
 

-    event.SetEventObject(this);

     event.SetEventType(eventType);
 
     event.SetEventType(eventType);
 

-    bool processed = GetEventHandler()->ProcessEvent(event);
+    if ( event.m_item.IsOk() )
+        event.SetClientObject(GetItemData(event.m_item));
+
+    bool processed = HandleWindowEvent(event);

 
     // post processing
     switch ( hdr->code )
 
     // post processing
     switch ( hdr->code )


@@ -2357,11 +2859,23 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
             // the return code of this event handler as the return value for
             // NM_DBLCLK - otherwise, double clicking the item to toggle its
             // expanded status would never work
             // the return code of this event handler as the return value for
             // NM_DBLCLK - otherwise, double clicking the item to toggle its
             // expanded status would never work

-            *result = FALSE;
+            *result = false;
+            break;
+
+        case NM_RCLICK:
+            // prevent tree control from sending WM_CONTEXTMENU to our parent
+            // (which it does if NM_RCLICK is not handled) because we want to
+            // send it to the control itself
+            *result =
+            processed = true;
+
+            ::SendMessage(GetHwnd(), WM_CONTEXTMENU,
+                          (WPARAM)GetHwnd(), ::GetMessagePos());

             break;
 
         case TVN_BEGINDRAG:
         case TVN_BEGINRDRAG:
             break;
 
         case TVN_BEGINDRAG:
         case TVN_BEGINRDRAG:

+#if wxUSE_DRAGIMAGE

             if ( event.IsAllowed() )
             {
                 // normally this is impossible because the m_dragImage is
             if ( event.IsAllowed() )
             {
                 // normally this is impossible because the m_dragImage is


@@ -2369,70 +2883,127 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 wxASSERT_MSG( !m_dragImage, _T("starting to drag once again?") );
 
                 m_dragImage = new wxDragImage(*this, event.m_item);
                 wxASSERT_MSG( !m_dragImage, _T("starting to drag once again?") );
 
                 m_dragImage = new wxDragImage(*this, event.m_item);

-                m_dragImage->BeginDrag(wxPoint(0, 0), this);
+                m_dragImage->BeginDrag(wxPoint(0,0), this);

                 m_dragImage->Show();
             }
                 m_dragImage->Show();
             }

+#endif // wxUSE_DRAGIMAGE

             break;
 
         case TVN_DELETEITEM:
             {
             break;
 
         case TVN_DELETEITEM:
             {

-                // NB: we might process this message using wxWindows event
+                // NB: we might process this message using wxWidgets event

                 //     tables, but due to overhead of wxWin event system we
                 //     prefer to do it here ourself (otherwise deleting a tree
                 //     with many items is just too slow)
                 //     tables, but due to overhead of wxWin event system we
                 //     prefer to do it here ourself (otherwise deleting a tree
                 //     with many items is just too slow)

-                NM_TREEVIEW* tv = (NM_TREEVIEW *)lParam;
+                NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;

 
 

-                wxTreeItemId item = event.m_item;
-                if ( HasIndirectData(item) )
-                {
-                    wxTreeItemIndirectData *data = (wxTreeItemIndirectData *)
-                                                        tv->itemOld.lParam;
-                    delete data; // can't be NULL here
-                }
-                else
-                {
-                    wxTreeItemData *data = (wxTreeItemData *)tv->itemOld.lParam;
-                    delete data; // may be NULL, ok
-                }
+                wxTreeItemParam *param =
+                        (wxTreeItemParam *)tv->itemOld.lParam;
+                delete param;

 
 

-                processed = TRUE; // Make sure we don't get called twice
+                processed = true; // Make sure we don't get called twice

             }
             break;
 
         case TVN_BEGINLABELEDIT:
             }
             break;
 
         case TVN_BEGINLABELEDIT:

-            // return TRUE to cancel label editing
+            // return true to cancel label editing

             *result = !event.IsAllowed();
             *result = !event.IsAllowed();

+
+            // set ES_WANTRETURN ( like we do in BeginLabelEdit )
+            if ( event.IsAllowed() )
+            {
+                HWND hText = TreeView_GetEditControl(GetHwnd());
+                if ( hText )
+                {
+                    // 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
+                    if ( m_textCtrl && m_textCtrl->GetHWND() )
+                        DeleteTextCtrl();
+                    if ( !m_textCtrl )
+                        m_textCtrl = new wxTextCtrl();
+                    m_textCtrl->SetParent(this);
+                    m_textCtrl->SetHWND((WXHWND)hText);
+                    m_textCtrl->SubclassWin((WXHWND)hText);
+
+                    // set wxTE_PROCESS_ENTER style for the text control to
+                    // force it to process the Enter presses itself, otherwise
+                    // they could be stolen from it by the dialog
+                    // navigation code
+                    m_textCtrl->SetWindowStyle(m_textCtrl->GetWindowStyle()
+                                               | wxTE_PROCESS_ENTER);
+                }
+            }
+            else // we had set m_idEdited before
+            {
+                m_idEdited.Unset();
+            }

             break;
 
         case TVN_ENDLABELEDIT:
             break;
 
         case TVN_ENDLABELEDIT:

-            // return TRUE to set the label to the new string: note that we
+            // return true to set the label to the new string: note that we

             // also must pretend that we did process the message or it is going
             // also must pretend that we did process the message or it is going

-            // to be passed to DefWindowProc() which will happily return FALSE
+            // to be passed to DefWindowProc() which will happily return false

             // cancelling the label change
             *result = event.IsAllowed();
             // cancelling the label change
             *result = event.IsAllowed();

-            processed = TRUE;
+            processed = true;

 
             // ensure that we don't have the text ctrl which is going to be
             // deleted any more
             DeleteTextCtrl();
             break;
 
 
             // ensure that we don't have the text ctrl which is going to be
             // deleted any more
             DeleteTextCtrl();
             break;
 

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

         case TVN_SELCHANGING:
         case TVN_ITEMEXPANDING:
         case TVN_SELCHANGING:
         case TVN_ITEMEXPANDING:

-            // return TRUE to prevent the action from happening
+            // return true to prevent the action from happening

             *result = !event.IsAllowed();
             break;
 
         case TVN_ITEMEXPANDED:
             *result = !event.IsAllowed();
             break;
 
         case TVN_ITEMEXPANDED:

-            // the item is not refreshed properly after expansion when it has
-            // an image depending on the expanded/collapsed state - bug in
-            // comctl32.dll or our code?

             {
             {

-                NM_TREEVIEW* tv = (NM_TREEVIEW*)lParam;
-                if ( tv->action == TVE_EXPAND )
-                {
-                    wxTreeItemId id = (WXHTREEITEM)tv->itemNew.hItem;
+                NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;
+                const wxTreeItemId id(tv->itemNew.hItem);

 
 

+                if ( tv->action == TVE_COLLAPSE )
+                {
+                    if ( wxApp::GetComCtl32Version() >= 600 )
+                    {
+                        // for some reason the item selection rectangle depends
+                        // on whether it is expanded or collapsed (at least
+                        // with comctl32.dll v6): it is wider (by 3 pixels) in
+                        // the expanded state, so when the item collapses and
+                        // then is deselected the rightmost 3 pixels of the
+                        // previously drawn selection are left on the screen
+                        //
+                        // it's not clear if it's a bug in comctl32.dll or in
+                        // our code (because it does not happen in Explorer but
+                        // OTOH we don't do anything which could result in this
+                        // AFAICS) but we do need to work around it to avoid
+                        // ugly artifacts
+                        RefreshItem(id);
+                    }
+                }
+                else // expand
+                {
+                    // the item is also not refreshed properly after expansion when
+                    // it has an image depending on the expanded/collapsed state:
+                    // again, it's not clear if the bug is in comctl32.dll or our
+                    // code...

                     int image = GetItemImage(id, wxTreeItemIcon_Expanded);
                     if ( image != -1 )
                     {
                     int image = GetItemImage(id, wxTreeItemIcon_Expanded);
                     if ( image != -1 )
                     {


@@ -2445,16 +3016,20 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
         case TVN_GETDISPINFO:
             // NB: so far the user can't set the image himself anyhow, so do it
             //     anyway - but this may change later
         case TVN_GETDISPINFO:
             // NB: so far the user can't set the image himself anyhow, so do it
             //     anyway - but this may change later

-//          if ( /* !processed && */ 1 )
+            //if ( /* !processed && */ )

             {
                 wxTreeItemId item = event.m_item;
                 TV_DISPINFO *info = (TV_DISPINFO *)lParam;
             {
                 wxTreeItemId item = event.m_item;
                 TV_DISPINFO *info = (TV_DISPINFO *)lParam;

+
+                const wxTreeItemParam * const param = GetItemParam(item);
+                if ( !param )
+                    break;
+

                 if ( info->item.mask & TVIF_IMAGE )
                 {
                     info->item.iImage =
                 if ( info->item.mask & TVIF_IMAGE )
                 {
                     info->item.iImage =

-                        DoGetItemImageFromData
+                        param->GetImage

                         (
                         (

-                         item,

                          IsExpanded(item) ? wxTreeItemIcon_Expanded
                                           : wxTreeItemIcon_Normal
                         );
                          IsExpanded(item) ? wxTreeItemIcon_Expanded
                                           : wxTreeItemIcon_Normal
                         );


@@ -2462,9 +3037,8 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 if ( info->item.mask & TVIF_SELECTEDIMAGE )
                 {
                     info->item.iSelectedImage =
                 if ( info->item.mask & TVIF_SELECTEDIMAGE )
                 {
                     info->item.iSelectedImage =

-                        DoGetItemImageFromData
+                        param->GetImage

                         (
                         (

-                         item,

                          IsExpanded(item) ? wxTreeItemIcon_SelectedExpanded
                                           : wxTreeItemIcon_Selected
                         );
                          IsExpanded(item) ? wxTreeItemIcon_SelectedExpanded
                                           : wxTreeItemIcon_Selected
                         );


@@ -2479,6 +3053,47 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
     return processed;
 }
 
     return processed;
 }
 

-#endif // __WIN95__
+// ----------------------------------------------------------------------------
+// State control.
+// ----------------------------------------------------------------------------
+
+// why do they define INDEXTOSTATEIMAGEMASK but not the inverse?
+#define STATEIMAGEMASKTOINDEX(state) (((state) & TVIS_STATEIMAGEMASK) >> 12)
+
+void wxTreeCtrl::SetState(const wxTreeItemId& node, int state)
+{
+    TV_ITEM tvi;
+    tvi.hItem = (HTREEITEM)node.m_pItem;
+    tvi.mask = TVIF_STATE;
+    tvi.stateMask = TVIS_STATEIMAGEMASK;
+
+    // Select the specified state, or -1 == cycle to the next one.
+    if ( state == -1 )
+    {
+        TreeView_GetItem(GetHwnd(), &tvi);
+
+        state = STATEIMAGEMASKTOINDEX(tvi.state) + 1;
+        if ( state == m_imageListState->GetImageCount() )
+            state = 1;
+    }
+
+    wxCHECK_RET( state < m_imageListState->GetImageCount(),
+                 _T("wxTreeCtrl::SetState(): item index out of bounds") );
+
+    tvi.state = INDEXTOSTATEIMAGEMASK(state);
+
+    TreeView_SetItem(GetHwnd(), &tvi);
+}
+
+int wxTreeCtrl::GetState(const wxTreeItemId& node)
+{
+    TV_ITEM tvi;
+    tvi.hItem = (HTREEITEM)node.m_pItem;
+    tvi.mask = TVIF_STATE;
+    tvi.stateMask = TVIS_STATEIMAGEMASK;
+    TreeView_GetItem(GetHwnd(), &tvi);
+
+    return STATEIMAGEMASKTOINDEX(tvi.state);
+}

 
 #endif // wxUSE_TREECTRL
 
 #endif // wxUSE_TREECTRL