]> git.saurik.com Git - wxWidgets.git/blobdiff - src/msw/treectrl.cpp
moved IMPLEMENT_DYNAMIC_CLASS(wxGDIObject,wxObject) line to gdicmn.cpp so that we...
[wxWidgets.git] / src / msw / treectrl.cpp
index 6bc4c2341c8281218de92b6e052069020a15686f..08f8e0779f8a387843b166dc314b3c606d71001e 100644 (file)
 // headers
 // ----------------------------------------------------------------------------
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma implementation "treectrl.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 
 #if wxUSE_TREECTRL
 
+#include "wx/treectrl.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/dynarray.h"
+    #include "wx/log.h"
+    #include "wx/app.h"
+    #include "wx/settings.h"
+#endif
+
 #include "wx/msw/private.h"
 
+// include <commctrl.h> "properly"
+#include "wx/msw/wrapcctl.h"
+
+#include "wx/msw/missing.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/app.h"
-#include "wx/log.h"
-#include "wx/dynarray.h"
 #include "wx/imaglist.h"
-#include "wx/settings.h"
-#include "wx/msw/treectrl.h"
 #include "wx/msw/dragimag.h"
 
-// include <commctrl.h> "properly"
-#include "wx/msw/wrapcctl.h"
-
 // macros to hide the cast ugliness
 // --------------------------------
 
-// ptr is the real item id, i.e. wxTreeItemId::m_pItem
-#define HITEM_PTR(ptr)     (HTREEITEM)(ptr)
-
-// item here is a wxTreeItemId
-#define HITEM(item)     HITEM_PTR((item).m_pItem)
+// get HTREEITEM from wxTreeItemId
+#define HITEM(item)     ((HTREEITEM)(((item).m_pItem)))
 
 // 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
@@ -271,27 +270,122 @@ 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_item(NULL),
+          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(wxTreeItemData *data)
+    wxVirtualNode(wxTreeItemParam *param)
         : wxTreeViewItem(TVI_ROOT, 0)
     {
-        m_data = data;
+        m_param = param;
     }
 
     ~wxVirtualNode()
     {
-        delete m_data;
+        delete m_param;
     }
 
-    wxTreeItemData *GetData() const { return m_data; }
-    void SetData(wxTreeItemData *data) { delete m_data; m_data = data; }
+    wxTreeItemParam *GetParam() const { return m_param; }
+    void SetParam(wxTreeItemParam *param) { delete m_param; m_param = param; }
 
 private:
-    wxTreeItemData *m_data;
+    wxTreeItemParam *m_param;
 
     DECLARE_NO_COPY_CLASS(wxVirtualNode)
 };
@@ -316,6 +410,11 @@ public:
         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
     // given one; return true if all items were traversed or false if the
     // traversal was aborted because OnVisit returned false
@@ -346,7 +445,8 @@ public:
         {
             m_selections.Empty();
 
-            DoTraverse(tree->GetRootItem());
+            if (tree->GetCount() > 0)
+                DoTraverse(tree->GetRootItem());
         }
 
     virtual bool OnVisit(const wxTreeItemId& item)
@@ -406,69 +506,6 @@ private:
     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.
-// ----------------------------------------------------------------------------
-
-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; }
-
-        // 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; }
-
-private:
-    // all the images associated with the item
-    int m_images[wxTreeItemIcon_Max];
-
-    // the real client data
-    wxTreeItemData *m_data;
-
-    DECLARE_NO_COPY_CLASS(wxTreeItemIndirectData)
-};
-
 // ----------------------------------------------------------------------------
 // wxWin macros
 // ----------------------------------------------------------------------------
@@ -610,9 +647,6 @@ bool wxTreeTraversal::Traverse(const wxTreeItemId& root, bool recursively)
 
 void wxTreeCtrl::Init()
 {
-    m_imageListNormal = NULL;
-    m_imageListState = NULL;
-    m_ownsImageListNormal = m_ownsImageListState = false;
     m_textCtrl = NULL;
     m_hasAnyAttr = false;
     m_dragImage = NULL;
@@ -659,7 +693,7 @@ bool wxTreeCtrl::Create(wxWindow *parent,
 
     if ( m_windowStyle & wxTR_FULL_ROW_HIGHLIGHT )
     {
-        if ( wxTheApp->GetComCtl32Version() >= 471 )
+        if ( wxApp::GetComCtl32Version() >= 471 )
             wstyle |= TVS_FULLROWSELECT;
     }
 
@@ -677,7 +711,7 @@ bool wxTreeCtrl::Create(wxWindow *parent,
         wstyle |= TVS_CHECKBOXES;
 #endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
 
-#ifndef __WXWINCE__
+#if !defined(__WXWINCE__) && defined(TVS_INFOTIP)
     // Need so that TVN_GETINFOTIP messages will be sent
     wstyle |= TVS_INFOTIP;
 #endif
@@ -776,9 +810,6 @@ wxTreeCtrl::~wxTreeCtrl()
     // delete user data to prevent memory leaks
     // also deletes hidden root node storage.
     DeleteAllItems();
-
-    if (m_ownsImageListNormal) delete m_imageListNormal;
-    if (m_ownsImageListState) delete m_imageListState;
 }
 
 // ----------------------------------------------------------------------------
@@ -799,7 +830,7 @@ wxTreeCtrl::GetClassDefaultAttributes(wxWindowVariant variant)
 
 // simple wrappers which add error checking in debug mode
 
-bool wxTreeCtrl::DoGetItem(wxTreeViewItemtvItem) const
+bool wxTreeCtrl::DoGetItem(wxTreeViewItem *tvItem) const
 {
     wxCHECK_MSG( tvItem->hItem != TVI_ROOT, false,
                  _T("can't retrieve virtual root item") );
@@ -814,7 +845,7 @@ bool wxTreeCtrl::DoGetItem(wxTreeViewItem* tvItem) const
     return true;
 }
 
-void wxTreeCtrl::DoSetItem(wxTreeViewItemtvItem)
+void wxTreeCtrl::DoSetItem(wxTreeViewItem *tvItem)
 {
     if ( TreeView_SetItem(GetHwnd(), tvItem) == -1 )
     {
@@ -822,9 +853,9 @@ void wxTreeCtrl::DoSetItem(wxTreeViewItem* tvItem)
     }
 }
 
-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
@@ -837,22 +868,12 @@ void wxTreeCtrl::SetIndent(unsigned int indent)
     TreeView_SetIndent(GetHwnd(), indent);
 }
 
-wxImageList *wxTreeCtrl::GetImageList() const
-{
-    return m_imageListNormal;
-}
-
-wxImageList *wxTreeCtrl::GetStateImageList() const
-{
-    return m_imageListState;
-}
-
 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)
@@ -871,18 +892,6 @@ void wxTreeCtrl::SetStateImageList(wxImageList *imageList)
     m_ownsImageListState = false;
 }
 
-void wxTreeCtrl::AssignImageList(wxImageList *imageList)
-{
-    SetImageList(imageList);
-    m_ownsImageListNormal = true;
-}
-
-void wxTreeCtrl::AssignStateImageList(wxImageList *imageList)
-{
-    SetStateImageList(imageList);
-    m_ownsImageListState = true;
-}
-
 size_t wxTreeCtrl::GetChildrenCount(const wxTreeItemId& item,
                                     bool recursively) const
 {
@@ -968,56 +977,6 @@ void wxTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text)
     }
 }
 
-int wxTreeCtrl::DoGetItemImageFromData(const wxTreeItemId& item,
-                                       wxTreeItemIcon which) const
-{
-    wxTreeViewItem tvItem(item, TVIF_PARAM);
-    if ( !DoGetItem(&tvItem) )
-    {
-        return -1;
-    }
-
-    return ((wxTreeItemIndirectData *)tvItem.lParam)->GetImage(which);
-}
-
-void wxTreeCtrl::DoSetItemImageFromData(const wxTreeItemId& item,
-                                        int image,
-                                        wxTreeItemIcon which) const
-{
-    wxTreeViewItem tvItem(item, TVIF_PARAM);
-    if ( !DoGetItem(&tvItem) )
-    {
-        return;
-    }
-
-    wxTreeItemIndirectData *data = ((wxTreeItemIndirectData *)tvItem.lParam);
-
-    data->SetImage(image, which);
-
-    // make sure that we have selected images as well
-    if ( which == wxTreeItemIcon_Normal &&
-         !data->HasImage(wxTreeItemIcon_Selected) )
-    {
-        data->SetImage(image, wxTreeItemIcon_Selected);
-    }
-
-    if ( which == wxTreeItemIcon_Expanded &&
-         !data->HasImage(wxTreeItemIcon_SelectedExpanded) )
-    {
-        data->SetImage(image, wxTreeItemIcon_SelectedExpanded);
-    }
-}
-
-void wxTreeCtrl::DoSetItemImages(const wxTreeItemId& item,
-                                 int image,
-                                 int imageSel)
-{
-    wxTreeViewItem tvItem(item, TVIF_IMAGE | TVIF_SELECTEDIMAGE);
-    tvItem.iSelectedImage = imageSel;
-    tvItem.iImage = image;
-    DoSetItem(&tvItem);
-}
-
 int wxTreeCtrl::GetItemImage(const wxTreeItemId& item,
                              wxTreeItemIcon which) const
 {
@@ -1025,201 +984,80 @@ int wxTreeCtrl::GetItemImage(const wxTreeItemId& item,
 
     if ( (HITEM(item) == TVI_ROOT) && (m_windowStyle & wxTR_HIDE_ROOT) )
     {
-        // TODO: Maybe a hidden root can still provide images?
+        // no images for hidden root item
         return -1;
     }
 
-    if ( HasIndirectData(item) )
-    {
-        return DoGetItemImageFromData(item, which);
-    }
+    wxTreeItemParam *param = GetItemParam(item);
 
-    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;
+    return param && param->HasImage(which) ? param->GetImage(which) : -1;
 }
 
 void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image,
                               wxTreeItemIcon which)
 {
     wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+    wxCHECK_RET( which >= 0 &&
+                 which < wxTreeItemIcon_Max,
+                 wxT("invalid image index"));
 
-    if ( IS_VIRTUAL_ROOT(item) )
+
+    if ( (HITEM(item) == TVI_ROOT) && (m_windowStyle & wxTR_HIDE_ROOT) )
     {
-        // TODO: Maybe a hidden root can still store images?
+        // no images for hidden root item
         return;
     }
 
-    int imageNormal,
-        imageSel;
-
-    switch ( which )
-    {
-        default:
-            wxFAIL_MSG( wxT("unknown tree item image type") );
-            // fall through
-
-        case wxTreeItemIcon_Normal:
-            {
-                const int imageNormalOld = GetItemImage(item);
-                const int imageSelOld =
-                    GetItemImage(item, wxTreeItemIcon_Selected);
-
-                // always set the normal image
-                imageNormal = image;
-
-                // if the selected and normal images were the same, they should
-                // be the same after the update, otherwise leave the selected
-                // image as it was
-                imageSel = imageNormalOld == imageSelOld ? image : imageSelOld;
-            }
-            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 = GetItemImage(item, wxTreeItemIcon_Selected);
-
-                // 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);
+    wxTreeItemParam *data = GetItemParam(item);
+    if ( !data )
+        return;
 
-            // 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;
-    }
+    data->SetImage(image, which);
 
-    // 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);
+    RefreshItem(item);
 }
 
-wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const
+wxTreeItemParam *wxTreeCtrl::GetItemParam(const wxTreeItemId& item) const
 {
     wxCHECK_MSG( item.IsOk(), NULL, wxT("invalid tree item") );
 
     wxTreeViewItem tvItem(item, TVIF_PARAM);
 
-    // Hidden root may have data.
+    // hidden root may still have data.
     if ( IS_VIRTUAL_ROOT(item) )
     {
-        return GET_VIRTUAL_ROOT()->GetData();
+        return GET_VIRTUAL_ROOT()->GetParam();
     }
 
-    // Visible node.
+    // visible node.
     if ( !DoGetItem(&tvItem) )
     {
         return NULL;
     }
 
-    wxTreeItemData *data = (wxTreeItemData *)tvItem.lParam;
-    if ( IsDataIndirect(data) )
-    {
-        data = ((wxTreeItemIndirectData *)data)->GetData();
-    }
-
-    return data;
+    return (wxTreeItemParam *)tvItem.lParam;
 }
 
-void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data)
+wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const
 {
-    wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+    wxTreeItemParam *data = GetItemParam(item);
 
-    if ( IS_VIRTUAL_ROOT(item) )
-    {
-        GET_VIRTUAL_ROOT()->SetData(data);
-    }
+    return data ? data->GetData() : NULL;
+}
 
+void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data)
+{
     // first, associate this piece of data with this item
     if ( data )
     {
         data->SetId(item);
     }
 
-    wxTreeViewItem tvItem(item, TVIF_PARAM);
-
-    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?") );
-
-    SetItemData(item, data);
-}
-
-bool wxTreeCtrl::HasIndirectData(const wxTreeItemId& item) const
-{
-    // query the item itself
-    wxTreeViewItem tvItem(item, TVIF_PARAM);
-    if ( !DoGetItem(&tvItem) )
-    {
-        return false;
-    }
+    wxTreeItemParam *param = GetItemParam(item);
 
-    wxTreeItemData *data = (wxTreeItemData *)tvItem.lParam;
+    wxCHECK_RET( param, wxT("failed to change tree items data") );
 
-    return data && IsDataIndirect(data);
+    param->SetData(data);
 }
 
 void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has)
@@ -1633,11 +1471,11 @@ size_t wxTreeCtrl::GetSelections(wxArrayTreeItemIds& selections) const
 // 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(),
@@ -1666,41 +1504,35 @@ wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent,
         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;
 
-    HTREEITEM id = (HTREEITEM) TreeView_InsertItem(GetHwnd(), &tvIns);
+    HTREEITEM id = TreeView_InsertItem(GetHwnd(), &tvIns);
     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 )
     {
-        // associate the application tree item with Win32 tree item handle
+        param->SetData(data);
         data->SetId(id);
     }
 
@@ -1710,20 +1542,6 @@ wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent,
 // for compatibility only
 #if WXWIN_COMPATIBILITY_2_4
 
-wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent,
-                                    const wxString& text,
-                                    int image, int selImage,
-                                    long insertAfter)
-{
-    return DoInsertItem(parent, wxTreeItemId((void *)insertAfter), text,
-                        image, selImage, NULL);
-}
-
-wxImageList *wxTreeCtrl::GetImageList(int) const
-{
-    return GetImageList();
-}
-
 void wxTreeCtrl::SetImageList(wxImageList *imageList, int)
 {
     SetImageList(imageList);
@@ -1749,64 +1567,48 @@ wxTreeItemId wxTreeCtrl::AddRoot(const wxString& text,
     if ( m_windowStyle & wxTR_HIDE_ROOT )
     {
         // create a virtual root item, the parent for all the others
-        m_pVirtualRoot = new wxVirtualNode(data);
+        wxTreeItemParam *param = new wxTreeItemParam;
+        param->SetData(data);
+
+        m_pVirtualRoot = new wxVirtualNode(param);
 
         return TVI_ROOT;
     }
 
-    return DoInsertItem(wxTreeItemId(), wxTreeItemId(),
-                        text, image, selectedImage, data);
-}
-
-wxTreeItemId wxTreeCtrl::PrependItem(const wxTreeItemId& parent,
-                                     const wxString& text,
-                                     int image, int selectedImage,
-                                     wxTreeItemData *data)
-{
-    return DoInsertItem(parent, TVI_FIRST,
-                        text, image, selectedImage, data);
+    return DoInsertAfter(wxTreeItemId(), wxTreeItemId(),
+                           text, image, selectedImage, 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);
-}
-
-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
-    wxTreeItemIdValue 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, TVI_LAST,
-                        text, image, selectedImage, data);
+    return DoInsertAfter(parent, idPrev, text, image, selectedImage, data);
 }
 
 void wxTreeCtrl::Delete(const wxTreeItemId& item)
@@ -1834,7 +1636,7 @@ void wxTreeCtrl::DeleteChildren(const wxTreeItemId& item)
     size_t nCount = children.Count();
     for ( size_t n = 0; n < nCount; n++ )
     {
-        if ( !TreeView_DeleteItem(GetHwnd(), HITEM_PTR(children[n])) )
+        if ( !TreeView_DeleteItem(GetHwnd(), HITEM(children[n])) )
         {
             wxLogLastError(wxT("TreeView_DeleteItem"));
         }
@@ -1868,7 +1670,7 @@ void wxTreeCtrl::DoExpand(const wxTreeItemId& item, int flag)
 
     // A hidden root can be neither expanded nor collapsed.
     wxCHECK_RET( !(m_windowStyle & wxTR_HIDE_ROOT) || (HITEM(item) != TVI_ROOT),
-                 wxT("Can't expand/collapse hidden root node!") )
+                 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
@@ -1884,16 +1686,12 @@ void wxTreeCtrl::DoExpand(const wxTreeItemId& item, int flag)
 
     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
-        event.SetEventType(gs_expandEvents[IsExpanded(item) ? IDX_EXPAND
-                                                            : IDX_COLLAPSE]
-                                          [IDX_DONE]);
-
+        wxTreeEvent event(gs_expandEvents[IsExpanded(item) ? IDX_EXPAND
+                                                           : IDX_COLLAPSE]
+                                         [IDX_DONE],
+                           this, item);
         (void)GetEventHandler()->ProcessEvent(event);
     }
     //else: change didn't took place, so do nothing at all
@@ -1946,11 +1744,13 @@ void wxTreeCtrl::UnselectAll()
         for ( size_t n = 0; n < count; n++ )
         {
 #if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
-            SetItemCheck(HITEM_PTR(selections[n]), false);
+            SetItemCheck(HITEM(selections[n]), false);
 #else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
-            ::UnselectItem(GetHwnd(), HITEM_PTR(selections[n]));
+            ::UnselectItem(GetHwnd(), HITEM(selections[n]));
 #endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
         }
+
+        m_htSelStart.Unset();
     }
     else
     {
@@ -1979,11 +1779,7 @@ void wxTreeCtrl::SelectItem(const wxTreeItemId& item, bool select)
         // the notification from the control (i.e. TVN_SELCHANG{ED|ING}), so
         // send them ourselves
 
-        wxTreeEvent event(wxEVT_NULL, m_windowId);
-        event.m_item = item;
-        event.SetEventObject(this);
-
-        event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGING);
+        wxTreeEvent event(wxEVT_COMMAND_TREE_SEL_CHANGING, this, item);
         if ( !GetEventHandler()->ProcessEvent(event) || event.IsAllowed() )
         {
             if ( !TreeView_SelectItem(GetHwnd(), HITEM(item)) )
@@ -2000,16 +1796,6 @@ void wxTreeCtrl::SelectItem(const wxTreeItemId& item, bool select)
     }
 }
 
-void wxTreeCtrl::UnselectItem(const wxTreeItemId& item)
-{
-    SelectItem(item, false);
-}
-
-void wxTreeCtrl::ToggleItemSelection(const wxTreeItemId& item)
-{
-    SelectItem(item, !IsSelected(item));
-}
-
 void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item)
 {
     // no error return
@@ -2050,8 +1836,8 @@ void wxTreeCtrl::DeleteTextCtrl()
     }
 }
 
-wxTextCtrlwxTreeCtrl::EditLabel(const wxTreeItemId& item,
-                                  wxClassInfotextControlClass)
+wxTextCtrl *wxTreeCtrl::EditLabel(const wxTreeItemId& item,
+                                  wxClassInfo *textControlClass)
 {
     wxASSERT( textControlClass->IsKindOf(CLASSINFO(wxTextCtrl)) );
 
@@ -2082,13 +1868,13 @@ void wxTreeCtrl::DoEndEditLabel(bool 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;
 
-    TreeView_HitTest(GetHwnd(), &hitTestInfo);
+    (void) TreeView_HitTest(GetHwnd(), &hitTestInfo);
 
     flags = 0;
 
@@ -2151,16 +1937,10 @@ public:
     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,
@@ -2172,14 +1952,8 @@ int CALLBACK wxTreeSortHelper::Compare(LPARAM pItem1,
 
     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)
@@ -2189,6 +1963,10 @@ void wxTreeCtrl::SortChildren(const wxTreeItemId& 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!)
+    // 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);
@@ -2207,6 +1985,20 @@ void wxTreeCtrl::SortChildren(const wxTreeItemId& item)
 // implementation
 // ----------------------------------------------------------------------------
 
+bool wxTreeCtrl::MSWShouldPreProcessMessage(WXMSG* msg)
+{
+    if ( msg->message == WM_KEYDOWN )
+    {
+        if ( msg->wParam == VK_RETURN )
+        {
+            // we need VK_RETURN to generate wxEVT_COMMAND_TREE_ITEM_ACTIVATED
+            return false;
+        }
+    }
+
+    return wxTreeCtrlBase::MSWShouldPreProcessMessage(msg);
+}
+
 bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id)
 {
     if ( cmd == EN_UPDATE )
@@ -2239,21 +2031,43 @@ WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lPara
 {
     bool processed = false;
     WXLRESULT rc = 0;
-    bool isMultiple = (GetWindowStyle() & wxTR_MULTIPLE) != 0;
+    bool isMultiple = HasFlag(wxTR_MULTIPLE);
 
-#ifdef WM_CONTEXTMENU
+    // This message is sent after a right-click, or when the "menu" key is pressed
     if ( nMsg == WM_CONTEXTMENU )
     {
-        wxTreeEvent event( wxEVT_COMMAND_TREE_ITEM_MENU, GetId() );
-        event.m_item = GetSelection();
-        event.SetEventObject( this );
+        int x = GET_X_LPARAM(lParam),
+            y = GET_Y_LPARAM(lParam);
+        // Convert the screen point to a client point
+        wxPoint MenuPoint = ScreenToClient(wxPoint(x, y));
+
+        // can't use GetSelection() here as it would assert in multiselect mode
+        wxTreeEvent event(wxEVT_COMMAND_TREE_ITEM_MENU, this,
+                          wxTreeItemId(TreeView_GetSelection(GetHwnd())));
+
+        // Get the bounding rectangle for the item, including the non-text areas
+        wxRect ItemRect;
+        GetBoundingRect(event.m_item, ItemRect, false);
+        // If the point is inside the bounding rectangle, use it as the click position.
+        // This should be the case for WM_CONTEXTMENU as the result of a right-click
+        if (ItemRect.Inside(MenuPoint))
+        {
+            event.m_pointDrag = MenuPoint;
+        }
+        // Use the Explorer standard of putting the menu at the left edge of the text,
+        // in the vertical middle of the text. Should be the case for the "menu" key
+        else
+        {
+            // Use the bounding rectangle of only the text part
+            GetBoundingRect(event.m_item, ItemRect, true);
+            event.m_pointDrag = wxPoint(ItemRect.GetX(), ItemRect.GetY() + ItemRect.GetHeight() / 2);
+        }
+
         if ( GetEventHandler()->ProcessEvent(event) )
-            return true;
+            processed = true;
         //else: continue with generating wxEVT_CONTEXT_MENU in base class code
     }
-#endif // __SMARTPHONE__
-
-    if ( (nMsg >= WM_MOUSEFIRST) && (nMsg <= WM_MOUSELAST) )
+    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
@@ -2261,6 +2075,12 @@ WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lPara
             y = GET_Y_LPARAM(lParam);
         HTREEITEM htItem = GetItemFromPoint(GetHwnd(), x, y);
 
+        TV_HITTESTINFO tvht;
+        tvht.pt.x = x;
+        tvht.pt.y = y;
+
+        (void) TreeView_HitTest(GetHwnd(), &tvht);
+
         switch ( nMsg )
         {
             case WM_RBUTTONDOWN:
@@ -2280,8 +2100,11 @@ WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lPara
 
 #if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
             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();
@@ -2307,8 +2130,11 @@ WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lPara
                             m_htSelStart = TreeView_GetSelection(GetHwnd());
                         }
 
-                        SelectRange(GetHwnd(), HITEM(m_htSelStart), htItem,
+                        if ( m_htSelStart )
+                            SelectRange(GetHwnd(), HITEM(m_htSelStart), htItem,
                                     !(wParam & MK_CONTROL));
+                        else
+                            ::SelectItem(GetHwnd(), htItem);
 
                         ::SetFocus(GetHwnd(), htItem);
 
@@ -2319,22 +2145,20 @@ WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lPara
                         // avoid doing anything if we click on the only
                         // currently selected item
 
+                        SetFocus();
+
                         wxArrayTreeItemIds selections;
                         size_t count = GetSelections(selections);
                         if ( count == 0 ||
                              count > 1 ||
-                             HITEM_PTR(selections[0]) != htItem )
+                             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))
-                            {
-                                ::SetFocus(GetHwnd(), htItem);
-                            }
-                             else
+                            if (!IsItemSelected(GetHwnd(), htItem))
                             {
                                 UnselectAll();
 
@@ -2346,6 +2170,8 @@ WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lPara
                                 TreeView_SelectItem(GetHwnd(), 0);
                                 ::SelectItem(GetHwnd(), htItem);
                             }
+                            ::SetFocus(GetHwnd(), htItem);
+                            processed = true;
                         }
 
                         // reset on any click without Shift
@@ -2356,6 +2182,45 @@ WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lPara
 #endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
 
             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 ) )
+                    {
+                        HWND pWnd = ::GetParent( GetHwnd() );
+                        if ( pWnd )
+                        {
+                            NM_TREEVIEW 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;
+                            ZeroMemory(&tviAux, sizeof(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;
+
+                            ::SendMessage( pWnd, WM_NOTIFY, tv.hdr.idFrom, (LPARAM)&tv );
+                        }
+                        m_htClickedItem.Unset();
+                    }
+                }
+#endif // __WXWINCE__
+
                 if ( m_dragImage )
                 {
                     m_dragImage->Move(wxPoint(x, y));
@@ -2384,7 +2249,10 @@ WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lPara
                     {
                         UnselectAll();
                         TreeView_SelectItem(GetHwnd(), htItem);
+                        ::SelectItem(GetHwnd(), htItem);
+                        ::SetFocus(GetHwnd(), htItem);
                     }
+                    m_htClickedItem.Unset();
                 }
 
                 // fall through
@@ -2397,12 +2265,7 @@ WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lPara
                     m_dragImage = NULL;
 
                     // generate the drag end event
-                    wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, m_windowId);
-
-                    event.m_item = htItem;
-                    event.m_pointDrag = wxPoint(x, y);
-                    event.SetEventObject(this);
-
+                    wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, this, htItem);
                     (void)GetEventHandler()->ProcessEvent(event);
 
                     // if we don't do it, the tree seems to think that 2 items
@@ -2425,10 +2288,10 @@ WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lPara
         {
             // TreeView_GetItemRect() will return false if item is not visible,
             // which may happen perfectly well
-            if ( TreeView_GetItemRect(GetHwnd(), HITEM_PTR(selections[n]),
-                                      &rect, true) )
+            if ( TreeView_GetItemRect(GetHwnd(), HITEM(selections[n]),
+                                      &rect, TRUE) )
             {
-                ::InvalidateRect(GetHwnd(), &rect, false);
+                ::InvalidateRect(GetHwnd(), &rect, FALSE);
             }
         }
     }
@@ -2437,79 +2300,82 @@ WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lPara
         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());
-        if ( !m_htSelStart )
+        switch ( wParam )
         {
-            m_htSelStart = htSel;
-        }
-
-        if ( wParam == VK_SPACE )
-        {
-            if ( bCtrl )
-            {
-                ::ToggleItemSelection(GetHwnd(), htSel);
-            }
-            else
-            {
-                UnselectAll();
-
-                ::SelectItem(GetHwnd(), htSel);
-            }
+            case VK_SPACE:
+                if ( bCtrl )
+                {
+                    ::ToggleItemSelection(GetHwnd(), 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();
 
-                processed = true;
-            }
+                    m_htSelStart.Unset();
+                }
         }
     }
 #endif // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
-    else 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 )
-        {
-            processed = true;
-        }
-    }
     else if ( nMsg == WM_COMMAND )
     {
         // if we receive a EN_KILLFOCUS command from the in-place edit control
@@ -2535,10 +2401,50 @@ WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lPara
     return rc;
 }
 
+WXLRESULT
+wxTreeCtrl::MSWDefWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+{
+    // default WM_RBUTTONDOWN handler enters modal loop inside DefWindowProc()
+    // waiting for WM_RBUTTONUP and then sends the resulting WM_CONTEXTMENU to
+    // the parent window, not us, which completely breaks everything so simply
+    // don't let it see this message at all
+    if ( nMsg == WM_RBUTTONDOWN )
+        return 0;
+
+    // but because of the above we don't get NM_RCLICK which is normally
+    // generated by tree window proc when the modal loop mentioned above ends
+    // because the mouse is released -- synthesize it ourselves instead
+    if ( nMsg == WM_RBUTTONUP )
+    {
+        NMHDR hdr;
+        hdr.hwndFrom = GetHwnd();
+        hdr.idFrom = GetId();
+        hdr.code = NM_RCLICK;
+
+        WXLPARAM rc;
+        MSWOnNotify(GetId(), (LPARAM)&hdr, &rc);
+
+        // continue as usual
+    }
+
+    if ( nMsg == WM_CHAR )
+    {
+        // also 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;
+    }
+
+    return wxControl::MSWDefWindowProc(nMsg, wParam, lParam);
+}
+
 // 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;
 
@@ -2571,6 +2477,10 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 eventType = wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT;
                 TV_DISPINFO *info = (TV_DISPINFO *)lParam;
 
+                // 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_editCancelled = false;
@@ -2619,6 +2529,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 break;
             }
 
+#ifdef TVN_GETINFOTIP
         case TVN_GETINFOTIP:
             {
                 eventType = wxEVT_COMMAND_TREE_ITEM_GETTOOLTIP;
@@ -2629,6 +2540,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 
                 break;
             }
+#endif
 #endif
 
         case TVN_GETDISPINFO:
@@ -2650,7 +2562,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
         case TVN_ITEMEXPANDING:
         case TVN_ITEMEXPANDED:
             {
-                NM_TREEVIEWtv = (NM_TREEVIEW*)lParam;
+                NM_TREEVIEW *tv = (NM_TREEVIEW*)lParam;
 
                 int what;
                 switch ( tv->action )
@@ -2685,12 +2597,12 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 // fabricate the lParam and wParam parameters sufficiently
                 // similar to the ones from a "real" WM_KEYDOWN so that
                 // CreateKeyEvent() works correctly
-                WXLPARAM lParam =
-                     (::GetKeyState(VK_MENU) < 0 ? KF_ALTDOWN : 0) << 16;
+                const bool isAltDown = ::GetKeyState(VK_MENU) < 0;
+                WXLPARAM lParam = (isAltDown ? KF_ALTDOWN : 0) << 16;
 
                 WXWPARAM wParam = info->wVKey;
 
-                int keyCode = wxCharCodeMSWToWX(info->wVKey);
+                int keyCode = wxCharCodeMSWToWX(wParam);
                 if ( !keyCode )
                 {
                     // wxCharCodeMSWToWX() returns 0 to indicate that this is a
@@ -2704,19 +2616,16 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                                                 wParam);
 
                 // a separate event for Space/Return
-                if ( !wxIsCtrlDown() && !wxIsShiftDown() &&
+                if ( !wxIsCtrlDown() && !wxIsShiftDown() && !isAltDown &&
                      ((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)GetEventHandler()->ProcessEvent(event2);
                 }
             }
             break;
@@ -2739,13 +2648,13 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 if (hdr->code == TVN_SELCHANGINGW ||
                     hdr->code == TVN_SELCHANGEDW)
                 {
-                    NM_TREEVIEWWtv = (NM_TREEVIEWW *)lParam;
+                    NM_TREEVIEWW *tv = (NM_TREEVIEWW *)lParam;
                     event.m_item = tv->itemNew.hItem;
                     event.m_itemOld = tv->itemOld.hItem;
                 }
                 else
                 {
-                    NM_TREEVIEWAtv = (NM_TREEVIEWA *)lParam;
+                    NM_TREEVIEWA *tv = (NM_TREEVIEWA *)lParam;
                     event.m_item = tv->itemNew.hItem;
                     event.m_itemOld = tv->itemOld.hItem;
                 }
@@ -2782,9 +2691,15 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 
                             wxTreeItemAttr * const attr = it->second;
 
+                            wxTreeViewItem tvItem((void *)nmcd.dwItemSpec,
+                                                  TVIF_STATE, TVIS_DROPHILITED);
+                            DoGetItem(&tvItem);
+                            const UINT tvItemState = tvItem.state;
+
                             // selection colours should override ours,
-                            // otherwise it is too confusing ot the user
-                            if ( !(nmcd.uItemState & CDIS_SELECTED) )
+                            // otherwise it is too confusing to the user
+                            if ( !(nmcd.uItemState & CDIS_SELECTED) &&
+                                 !(tvItemState & TVIS_DROPHILITED) )
                             {
                                 wxColour colBack;
                                 if ( attr->HasBackgroundColour() )
@@ -2798,8 +2713,9 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                             // 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 )
+                            if ( ( !(nmcd.uItemState & CDIS_SELECTED) ||
+                                    FindFocus() != this ) &&
+                                 !(tvItemState & TVIS_DROPHILITED) )
                             {
                                 wxColour colText;
                                 if ( attr->HasTextColour() )
@@ -2878,9 +2794,11 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
             return wxControl::MSWOnNotify(idCtrl, lParam, result);
     }
 
-    event.SetEventObject(this);
     event.SetEventType(eventType);
 
+    if ( event.m_item.IsOk() )
+        event.SetClientObject(GetItemData(event.m_item));
+
     bool processed = GetEventHandler()->ProcessEvent(event);
 
     // post processing
@@ -2914,20 +2832,11 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 //     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_TREEVIEWtv = (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
             }
@@ -2936,19 +2845,20 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
         case TVN_BEGINLABELEDIT:
             // return true to cancel label editing
             *result = !event.IsAllowed();
+
             // set ES_WANTRETURN ( like we do in BeginLabelEdit )
-            if(event.IsAllowed())
+            if ( event.IsAllowed() )
             {
                 HWND hText = TreeView_GetEditControl(GetHwnd());
-                if(hText != NULL)
+                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() != 0)
+                    if ( m_textCtrl && m_textCtrl->GetHWND() )
                         DeleteTextCtrl();
-                    if(!m_textCtrl)
+                    if ( !m_textCtrl )
                         m_textCtrl = new wxTextCtrl();
                     m_textCtrl->SetParent(this);
                     m_textCtrl->SetHWND((WXHWND)hText);
@@ -2962,6 +2872,10 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                                                | wxTE_PROCESS_ENTER);
                 }
             }
+            else // we had set m_idEdited before
+            {
+                m_idEdited.Unset();
+            }
             break;
 
         case TVN_ENDLABELEDIT:
@@ -2978,6 +2892,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
             break;
 
 #ifndef __WXWINCE__
+#ifdef TVN_GETINFOTIP
          case TVN_GETINFOTIP:
             {
                 // If the user permitted a tooltip change, change it
@@ -2987,6 +2902,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 }
             }
             break;
+#endif
 #endif
 
         case TVN_SELCHANGING:
@@ -3000,7 +2916,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
             // an image depending on the expanded/collapsed state - bug in
             // comctl32.dll or our code?
             {
-                NM_TREEVIEWtv = (NM_TREEVIEW *)lParam;
+                NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;
                 wxTreeItemId id(tv->itemNew.hItem);
 
                 int image = GetItemImage(id, wxTreeItemIcon_Expanded);
@@ -3014,16 +2930,20 @@ 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
-            //if ( /* !processed && */ )
+            //if ( /* !processed && */ )
             {
                 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 =
-                        DoGetItemImageFromData
+                        param->GetImage
                         (
-                         item,
                          IsExpanded(item) ? wxTreeItemIcon_Expanded
                                           : wxTreeItemIcon_Normal
                         );
@@ -3031,9 +2951,8 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 if ( info->item.mask & TVIF_SELECTEDIMAGE )
                 {
                     info->item.iSelectedImage =
-                        DoGetItemImageFromData
+                        param->GetImage
                         (
-                         item,
                          IsExpanded(item) ? wxTreeItemIcon_SelectedExpanded
                                           : wxTreeItemIcon_Selected
                         );
@@ -3091,14 +3010,4 @@ int wxTreeCtrl::GetState(const wxTreeItemId& node)
     return STATEIMAGEMASKTOINDEX(tvi.state);
 }
 
-#if WXWIN_COMPATIBILITY_2_2
-
-wxTreeItemId wxTreeCtrl::GetParent(const wxTreeItemId& item) const
-{
-    return GetItemParent( item );
-}
-
-#endif  // WXWIN_COMPATIBILITY_2_2
-
 #endif // wxUSE_TREECTRL
-