]> git.saurik.com Git - wxWidgets.git/blobdiff - src/msw/treectrl.cpp
removed gtk.h include
[wxWidgets.git] / src / msw / treectrl.cpp
index 5dcb0867c0c8e4c112dedaae6107c402c21efa02..c2e063711f24174e2946ec3616813e14fd6bdeb6 100644 (file)
@@ -17,7 +17,7 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
     #pragma implementation "treectrl.h"
 #endif
 
 // 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/msw/treectrl.h"
 #include "wx/msw/dragimag.h"
 
-#ifdef __GNUWIN32_OLD__
-    #include "wx/msw/gnuwin32/extra.h"
-#endif
-
-#if defined(__WIN95__) && !(defined(__GNUWIN32_OLD__) && !defined(__CYGWIN10__))
-    #include <commctrl.h>
-#endif
-
-// Bug in headers, sometimes
-#ifndef TVIS_FOCUSED
-    #define TVIS_FOCUSED            0x0001
-#endif
-
-#ifndef TV_FIRST
-    #define TV_FIRST                0x1100
-#endif
-
-#ifndef TVS_CHECKBOXES
-    #define TVS_CHECKBOXES          0x0100
-#endif
+// include <commctrl.h> "properly"
+#include "wx/msw/wrapcctl.h"
 
-#ifndef TVS_FULLROWSELECT
-    #define TVS_FULLROWSELECT       0x1000
-#endif
+// macros to hide the cast ugliness
+// --------------------------------
 
-// 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
+// ptr is the real item id, i.e. wxTreeItemId::m_pItem
+#define HITEM_PTR(ptr)     (HTREEITEM)(ptr)
 
-// a macro to hide the ugliness of nested casts
-#define HITEM(item)     (HTREEITEM)(WXHTREEITEM)(item)
+// item here is a wxTreeItemId
+#define HITEM(item)     HITEM_PTR((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
@@ -130,7 +97,7 @@ static bool IsItemSelected(HWND hwndTV, HTREEITEM hItem)
     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;
@@ -141,7 +108,10 @@ static void SelectItem(HWND hwndTV, HTREEITEM hItem, bool select = true)
     if ( TreeView_SetItem(hwndTV, &tvi) == -1 )
     {
         wxLogLastError(wxT("TreeView_SetItem"));
+        return false;
     }
+
+    return true;
 }
 
 static inline void UnselectItem(HWND hwndTV, HTREEITEM htItem)
@@ -403,6 +373,8 @@ public:
 
 private:
     wxArrayTreeItemIds& m_selections;
+
+    DECLARE_NO_COPY_CLASS(TraverseSelections)
 };
 
 // internal class for counting tree items
@@ -430,6 +402,8 @@ public:
 
 private:
     size_t m_count;
+
+    DECLARE_NO_COPY_CLASS(TraverseCounter)
 };
 
 // ----------------------------------------------------------------------------
@@ -499,7 +473,69 @@ private:
 // wxWin macros
 // ----------------------------------------------------------------------------
 
+#if wxUSE_EXTENDED_RTTI
+WX_DEFINE_FLAGS( wxTreeCtrlStyle )
+
+wxBEGIN_FLAGS( wxTreeCtrlStyle )
+    // new style border flags, we put them first to
+    // use them for streaming out
+    wxFLAGS_MEMBER(wxBORDER_SIMPLE)
+    wxFLAGS_MEMBER(wxBORDER_SUNKEN)
+    wxFLAGS_MEMBER(wxBORDER_DOUBLE)
+    wxFLAGS_MEMBER(wxBORDER_RAISED)
+    wxFLAGS_MEMBER(wxBORDER_STATIC)
+    wxFLAGS_MEMBER(wxBORDER_NONE)
+
+    // old style border flags
+    wxFLAGS_MEMBER(wxSIMPLE_BORDER)
+    wxFLAGS_MEMBER(wxSUNKEN_BORDER)
+    wxFLAGS_MEMBER(wxDOUBLE_BORDER)
+    wxFLAGS_MEMBER(wxRAISED_BORDER)
+    wxFLAGS_MEMBER(wxSTATIC_BORDER)
+    wxFLAGS_MEMBER(wxBORDER)
+
+    // standard window styles
+    wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
+    wxFLAGS_MEMBER(wxCLIP_CHILDREN)
+    wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
+    wxFLAGS_MEMBER(wxWANTS_CHARS)
+    wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
+    wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
+    wxFLAGS_MEMBER(wxVSCROLL)
+    wxFLAGS_MEMBER(wxHSCROLL)
+
+    wxFLAGS_MEMBER(wxTR_EDIT_LABELS)
+    wxFLAGS_MEMBER(wxTR_NO_BUTTONS)
+    wxFLAGS_MEMBER(wxTR_HAS_BUTTONS)
+    wxFLAGS_MEMBER(wxTR_TWIST_BUTTONS)
+    wxFLAGS_MEMBER(wxTR_NO_LINES)
+    wxFLAGS_MEMBER(wxTR_FULL_ROW_HIGHLIGHT)
+    wxFLAGS_MEMBER(wxTR_LINES_AT_ROOT)
+    wxFLAGS_MEMBER(wxTR_HIDE_ROOT)
+    wxFLAGS_MEMBER(wxTR_ROW_LINES)
+    wxFLAGS_MEMBER(wxTR_HAS_VARIABLE_ROW_HEIGHT)
+    wxFLAGS_MEMBER(wxTR_SINGLE)
+    wxFLAGS_MEMBER(wxTR_MULTIPLE)
+    wxFLAGS_MEMBER(wxTR_EXTENDED)
+    wxFLAGS_MEMBER(wxTR_DEFAULT_STYLE)
+
+wxEND_FLAGS( wxTreeCtrlStyle )
+
+IMPLEMENT_DYNAMIC_CLASS_XTI(wxTreeCtrl, wxControl,"wx/treectrl.h")
+
+wxBEGIN_PROPERTIES_TABLE(wxTreeCtrl)
+    wxEVENT_PROPERTY( TextUpdated , wxEVT_COMMAND_TEXT_UPDATED , wxCommandEvent )
+    wxEVENT_RANGE_PROPERTY( TreeEvent , wxEVT_COMMAND_TREE_BEGIN_DRAG , wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK , wxTreeEvent )
+    wxPROPERTY_FLAGS( WindowStyle , wxTreeCtrlStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
+wxEND_PROPERTIES_TABLE()
+
+wxBEGIN_HANDLERS_TABLE(wxTreeCtrl)
+wxEND_HANDLERS_TABLE()
+
+wxCONSTRUCTOR_5( wxTreeCtrl , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
+#else
 IMPLEMENT_DYNAMIC_CLASS(wxTreeCtrl, wxControl)
+#endif
 
 // ----------------------------------------------------------------------------
 // constants
@@ -551,7 +587,7 @@ bool wxTreeTraversal::DoTraverse(const wxTreeItemId& root, bool recursively)
 
 bool wxTreeTraversal::Traverse(const wxTreeItemId& root, bool recursively)
 {
-    long cookie;
+    wxTreeItemIdValue cookie;
     wxTreeItemId child = m_tree->GetFirstChild(root, cookie);
     while ( child.IsOk() )
     {
@@ -580,7 +616,6 @@ void wxTreeCtrl::Init()
     m_textCtrl = NULL;
     m_hasAnyAttr = false;
     m_dragImage = NULL;
-    m_htSelStart = 0;
     m_pVirtualRoot = NULL;
 
     // initialize the global array of events now as it can't be done statically
@@ -642,6 +677,11 @@ bool wxTreeCtrl::Create(wxWindow *parent,
         wstyle |= TVS_CHECKBOXES;
 #endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
 
+#ifndef __WXWINCE__
+    // Need so that TVN_GETINFOTIP messages will be sent
+    wstyle |= TVS_INFOTIP;
+#endif
+
     // Create the tree control.
     if ( !MSWCreateControl(WC_TREEVIEW, wstyle) )
         return false;
@@ -717,6 +757,8 @@ bool wxTreeCtrl::Create(wxWindow *parent,
 
     SetSize(pos.x, pos.y, size.x, size.y);
 
+    wxSetCCUnicodeFormat(GetHwnd());
+
     return true;
 }
 
@@ -725,10 +767,7 @@ wxTreeCtrl::~wxTreeCtrl()
     // delete any attributes
     if ( m_hasAnyAttr )
     {
-        for ( wxNode *node = m_attrs.Next(); node; node = m_attrs.Next() )
-        {
-            delete (wxTreeItemAttr *)node->GetData();
-        }
+        WX_CLEAR_HASH_MAP(wxMapTreeAttr, m_attrs);
 
         // prevent TVN_DELETEITEM handler from deleting the attributes again!
         m_hasAnyAttr = false;
@@ -748,6 +787,18 @@ wxTreeCtrl::~wxTreeCtrl()
 // accessors
 // ----------------------------------------------------------------------------
 
+/* static */ wxVisualAttributes
+wxTreeCtrl::GetClassDefaultAttributes(wxWindowVariant variant)
+{
+    wxVisualAttributes attrs = GetCompositeControlsDefaultAttributes(variant);
+
+    // common controls have their own default font
+    attrs.font = wxGetCCDefaultFont();
+
+    return attrs;
+}
+
+
 // simple wrappers which add error checking in debug mode
 
 bool wxTreeCtrl::DoGetItem(wxTreeViewItem* tvItem) const
@@ -795,7 +846,7 @@ wxImageList *wxTreeCtrl::GetImageList() const
 
 wxImageList *wxTreeCtrl::GetStateImageList() const
 {
-    return m_imageListNormal;
+    return m_imageListState;
 }
 
 void wxTreeCtrl::SetAnyImageList(wxImageList *imageList, int which)
@@ -837,8 +888,9 @@ void wxTreeCtrl::AssignStateImageList(wxImageList *imageList)
 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;
 }
 
@@ -876,6 +928,8 @@ bool wxTreeCtrl::SetForegroundColour(const wxColour &colour)
 
 wxString wxTreeCtrl::GetItemText(const wxTreeItemId& item) const
 {
+    wxCHECK_MSG( item.IsOk(), wxT(""), wxT("invalid tree item") );
+
     wxChar buf[512];  // the size is arbitrary...
 
     wxTreeViewItem tvItem(item, TVIF_TEXT);
@@ -892,6 +946,8 @@ wxString wxTreeCtrl::GetItemText(const wxTreeItemId& item) const
 
 void wxTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text)
 {
+    wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+
     if ( IS_VIRTUAL_ROOT(item) )
         return;
 
@@ -907,7 +963,7 @@ void wxTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text)
     HWND hwndEdit = TreeView_GetEditControl(GetHwnd());
     if ( hwndEdit )
     {
-        if ( item == GetSelection() )
+        if ( item == m_idEdited )
         {
             ::SetWindowText(hwndEdit, text);
         }
@@ -967,6 +1023,8 @@ void wxTreeCtrl::DoSetItemImages(const wxTreeItemId& item,
 int wxTreeCtrl::GetItemImage(const wxTreeItemId& item,
                              wxTreeItemIcon which) const
 {
+    wxCHECK_MSG( item.IsOk(), -1, wxT("invalid tree item") );
+
     if ( (HITEM(item) == TVI_ROOT) && (m_windowStyle & wxTR_HIDE_ROOT) )
     {
         // TODO: Maybe a hidden root can still provide images?
@@ -1006,21 +1064,37 @@ int wxTreeCtrl::GetItemImage(const wxTreeItemId& item,
 void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image,
                               wxTreeItemIcon which)
 {
+    wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+
     if ( IS_VIRTUAL_ROOT(item) )
     {
         // TODO: Maybe a hidden root can still store images?
         return;
     }
 
-    int imageNormal, imageSel;
+    int imageNormal,
+        imageSel;
+
     switch ( which )
     {
         default:
             wxFAIL_MSG( wxT("unknown tree item image type") );
+            // fall through
 
         case wxTreeItemIcon_Normal:
-            imageNormal = image;
-            imageSel = GetItemSelectedImage(item);
+            {
+                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:
@@ -1036,7 +1110,7 @@ void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image,
                 // the wxTreeItemIndirectData GetItemXXXImage() will use it to
                 // get the images
                 imageNormal = GetItemImage(item);
-                imageSel = GetItemSelectedImage(item);
+                imageSel = GetItemImage(item, wxTreeItemIcon_Selected);
 
                 // if it doesn't have it yet, add it
                 wxTreeItemIndirectData *data = new
@@ -1064,6 +1138,8 @@ void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image,
 
 wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const
 {
+    wxCHECK_MSG( item.IsOk(), NULL, wxT("invalid tree item") );
+
     wxTreeViewItem tvItem(item, TVIF_PARAM);
 
     // Hidden root may have data.
@@ -1089,6 +1165,8 @@ wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const
 
 void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data)
 {
+    wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+
     if ( IS_VIRTUAL_ROOT(item) )
     {
         GET_VIRTUAL_ROOT()->SetData(data);
@@ -1148,6 +1226,8 @@ bool wxTreeCtrl::HasIndirectData(const wxTreeItemId& item) const
 
 void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has)
 {
+    wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+
     if ( IS_VIRTUAL_ROOT(item) )
         return;
 
@@ -1158,6 +1238,8 @@ void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has)
 
 void wxTreeCtrl::SetItemBold(const wxTreeItemId& item, bool bold)
 {
+    wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+
     if ( IS_VIRTUAL_ROOT(item) )
         return;
 
@@ -1190,51 +1272,45 @@ void wxTreeCtrl::RefreshItem(const wxTreeItemId& item)
 
 wxColour wxTreeCtrl::GetItemTextColour(const wxTreeItemId& item) const
 {
-    long id = (long)(WXHTREEITEM)item;
-    wxTreeItemAttr *attr = (wxTreeItemAttr *)m_attrs.Get(id);
-    if ( !attr )
-    {
-        return wxNullColour;
-    }
+    wxCHECK_MSG( item.IsOk(), wxNullColour, wxT("invalid tree item") );
 
-    return attr->GetTextColour();
+    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
 {
-    long id = (long)(WXHTREEITEM)item;
-    wxTreeItemAttr *attr = (wxTreeItemAttr *)m_attrs.Get(id);
-    if ( !attr )
-    {
-        return wxNullColour;
-    }
+    wxCHECK_MSG( item.IsOk(), wxNullColour, wxT("invalid tree item") );
 
-    return attr->GetBackgroundColour();
+    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
 {
-    long id = (long)(WXHTREEITEM)item;
-    wxTreeItemAttr *attr = (wxTreeItemAttr *)m_attrs.Get(id);
-    if ( !attr )
-    {
-        return wxNullFont;
-    }
+    wxCHECK_MSG( item.IsOk(), wxNullFont, wxT("invalid tree item") );
 
-    return attr->GetFont();
+    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)
 {
-    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;
-        m_attrs.Put(id, (wxObject *)attr);
+    }
+    else
+    {
+        attr = it->second;
     }
 
     attr->SetTextColour(col);
@@ -1245,14 +1321,20 @@ void wxTreeCtrl::SetItemTextColour(const wxTreeItemId& item,
 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;
-        m_attrs.Put(id, (wxObject *)attr);
+    }
+    else // already in the hash
+    {
+        attr = it->second;
     }
 
     attr->SetBackgroundColour(col);
@@ -1262,14 +1344,20 @@ void wxTreeCtrl::SetItemBackgroundColour(const wxTreeItemId& item,
 
 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;
-        m_attrs.Put(id, (wxObject *)attr);
+    }
+    else // already in the hash
+    {
+        attr = it->second;
     }
 
     attr->SetFont(font);
@@ -1283,6 +1371,8 @@ void wxTreeCtrl::SetItemFont(const wxTreeItemId& item, const wxFont& font)
 
 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
@@ -1294,14 +1384,26 @@ bool wxTreeCtrl::IsVisible(const wxTreeItemId& item) const
 
     // 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);
+
+    // 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;
+    }
 
-    // false means get item rect for the whole item, not only text
-    return SendMessage(GetHwnd(), TVM_GETITEMRECT, false, (LPARAM)&rect) != 0;
+    // 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
 {
+    wxCHECK_MSG( item.IsOk(), FALSE, wxT("invalid tree item") );
+
     wxTreeViewItem tvItem(item, TVIF_CHILDREN);
     DoGetItem(&tvItem);
 
@@ -1310,8 +1412,7 @@ bool wxTreeCtrl::ItemHasChildren(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);
@@ -1321,6 +1422,8 @@ bool wxTreeCtrl::IsExpanded(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);
 
@@ -1329,6 +1432,8 @@ bool wxTreeCtrl::IsSelected(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);
 
@@ -1345,19 +1450,21 @@ wxTreeItemId wxTreeCtrl::GetRootItem() const
     if ( GET_VIRTUAL_ROOT() )
         return TVI_ROOT;
 
-    return wxTreeItemId((WXHTREEITEM) TreeView_GetRoot(GetHwnd()));
+    return wxTreeItemId(TreeView_GetRoot(GetHwnd()));
 }
 
 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") );
 
-    return wxTreeItemId((WXHTREEITEM) TreeView_GetSelection(GetHwnd()));
+    return wxTreeItemId(TreeView_GetSelection(GetHwnd()));
 }
 
 wxTreeItemId wxTreeCtrl::GetItemParent(const wxTreeItemId& item) const
 {
+    wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
+
     HTREEITEM hItem;
 
     if ( IS_VIRTUAL_ROOT(item) )
@@ -1375,32 +1482,63 @@ wxTreeItemId wxTreeCtrl::GetItemParent(const wxTreeItemId& item) const
         }
     }
 
-    return wxTreeItemId((WXHTREEITEM)hItem);
+    return wxTreeItemId(hItem);
 }
 
 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'
-    _cookie = (long)TreeView_GetChild(GetHwnd(), HITEM(item));
+    cookie = TreeView_GetChild(GetHwnd(), HITEM(item));
+
+    return wxTreeItemId(cookie);
+}
+
+wxTreeItemId wxTreeCtrl::GetNextChild(const wxTreeItemId& WXUNUSED(item),
+                                      wxTreeItemIdValue& cookie) const
+{
+    wxTreeItemId item(TreeView_GetNextSibling(GetHwnd(),
+                                              HITEM(wxTreeItemId(cookie))));
+    cookie = item.m_pItem;
+
+    return item;
+}
 
-    return wxTreeItemId((WXHTREEITEM)_cookie);
+#if WXWIN_COMPATIBILITY_2_4
+
+wxTreeItemId wxTreeCtrl::GetFirstChild(const wxTreeItemId& item,
+                                       long& cookie) const
+{
+    wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
+
+    cookie = (long)TreeView_GetChild(GetHwnd(), HITEM(item));
+
+    return wxTreeItemId((void *)cookie);
 }
 
 wxTreeItemId wxTreeCtrl::GetNextChild(const wxTreeItemId& WXUNUSED(item),
-                                      long& _cookie) const
+                                      long& cookie) const
 {
-    wxTreeItemId l = wxTreeItemId((WXHTREEITEM)TreeView_GetNextSibling(GetHwnd(),
-                                   HITEM(_cookie)));
-    _cookie = (long)l;
+    wxTreeItemId item(TreeView_GetNextSibling
+                      (
+                        GetHwnd(),
+                        HITEM(wxTreeItemId((void *)cookie)
+                      )));
+    cookie = (long)item.m_pItem;
 
-    return l;
+    return item;
 }
 
+#endif // WXWIN_COMPATIBILITY_2_4
+
 wxTreeItemId wxTreeCtrl::GetLastChild(const wxTreeItemId& item) const
 {
+    wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
+
     // can this be done more efficiently?
-    long cookie;
+    wxTreeItemIdValue cookie;
 
     wxTreeItemId childLast,
     child = GetFirstChild(item, cookie);
@@ -1415,31 +1553,35 @@ wxTreeItemId wxTreeCtrl::GetLastChild(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
 {
-    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
 {
-    return wxTreeItemId((WXHTREEITEM) TreeView_GetFirstVisible(GetHwnd()));
+    return wxTreeItemId(TreeView_GetFirstVisible(GetHwnd()));
 }
 
 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!"));
 
-    return wxTreeItemId((WXHTREEITEM) TreeView_GetNextVisible(GetHwnd(), HITEM(item)));
+    return wxTreeItemId(TreeView_GetNextVisible(GetHwnd(), HITEM(item)));
 }
 
 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!"));
 
-    return wxTreeItemId((WXHTREEITEM) TreeView_GetPrevVisible(GetHwnd(), HITEM(item)));
+    return wxTreeItemId(TreeView_GetPrevVisible(GetHwnd(), HITEM(item)));
 }
 
 // ----------------------------------------------------------------------------
@@ -1448,6 +1590,8 @@ wxTreeItemId wxTreeCtrl::GetPrevVisible(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);
@@ -1458,6 +1602,8 @@ bool wxTreeCtrl::IsItemChecked(const wxTreeItemId& item) const
 
 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);
 
@@ -1548,22 +1694,26 @@ wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent,
     if ( data != NULL )
     {
         // associate the application tree item with Win32 tree item handle
-        data->SetId((WXHTREEITEM)id);
+        data->SetId(id);
     }
 
-    return wxTreeItemId((WXHTREEITEM)id);
+    return wxTreeItemId(id);
 }
 
 // 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, (WXHTREEITEM)insertAfter, text,
+    return DoInsertItem(parent, wxTreeItemId((void *)insertAfter), text,
                         image, selImage, NULL);
 }
 
+#endif // WXWIN_COMPATIBILITY_2_4
+
 wxTreeItemId wxTreeCtrl::AddRoot(const wxString& text,
                                  int image, int selectedImage,
                                  wxTreeItemData *data)
@@ -1577,7 +1727,7 @@ wxTreeItemId wxTreeCtrl::AddRoot(const wxString& text,
         return TVI_ROOT;
     }
 
-    return DoInsertItem(wxTreeItemId((long)(WXHTREEITEM) 0), (long)(WXHTREEITEM) 0,
+    return DoInsertItem(wxTreeItemId(), wxTreeItemId(),
                         text, image, selectedImage, data);
 }
 
@@ -1586,7 +1736,7 @@ wxTreeItemId wxTreeCtrl::PrependItem(const wxTreeItemId& parent,
                                      int image, int selectedImage,
                                      wxTreeItemData *data)
 {
-    return DoInsertItem(parent, (WXHTREEITEM) TVI_FIRST,
+    return DoInsertItem(parent, TVI_FIRST,
                         text, image, selectedImage, data);
 }
 
@@ -1606,7 +1756,7 @@ wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent,
                                     wxTreeItemData *data)
 {
     // find the item from index
-    long cookie;
+    wxTreeItemIdValue cookie;
     wxTreeItemId idPrev, idCur = GetFirstChild(parent, cookie);
     while ( index != 0 && idCur.IsOk() )
     {
@@ -1628,7 +1778,7 @@ wxTreeItemId wxTreeCtrl::AppendItem(const wxTreeItemId& parent,
                                     int image, int selectedImage,
                                     wxTreeItemData *data)
 {
-    return DoInsertItem(parent, (WXHTREEITEM) TVI_LAST,
+    return DoInsertItem(parent, TVI_LAST,
                         text, image, selectedImage, data);
 }
 
@@ -1643,13 +1793,13 @@ void wxTreeCtrl::Delete(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() )
     {
-        children.Add((long)(WXHTREEITEM)child);
+        children.Add(child);
 
         child = GetNextChild(item, cookie);
     }
@@ -1657,7 +1807,7 @@ void wxTreeCtrl::DeleteChildren(const wxTreeItemId& item)
     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_PTR(children[n])) )
         {
             wxLogLastError(wxT("TreeView_DeleteItem"));
         }
@@ -1742,10 +1892,12 @@ void wxTreeCtrl::Toggle(const wxTreeItemId& item)
     DoExpand(item, TVE_TOGGLE);
 }
 
+#if WXWIN_COMPATIBILITY_2_4
 void wxTreeCtrl::ExpandItem(const wxTreeItemId& item, int action)
 {
     DoExpand(item, action);
 }
+#endif
 
 void wxTreeCtrl::Unselect()
 {
@@ -1753,7 +1905,7 @@ void wxTreeCtrl::Unselect()
                   wxT("doesn't make sense, may be you want UnselectAll()?") );
 
     // just remove the selection
-    SelectItem(wxTreeItemId((long) (WXHTREEITEM) 0));
+    SelectItem(wxTreeItemId());
 }
 
 void wxTreeCtrl::UnselectAll()
@@ -1765,9 +1917,9 @@ void wxTreeCtrl::UnselectAll()
         for ( size_t n = 0; n < count; n++ )
         {
 #if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
-            SetItemCheck(selections[n], false);
+            SetItemCheck(HITEM_PTR(selections[n]), false);
 #else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
-            ::UnselectItem(GetHwnd(), HITEM(selections[n]));
+            ::UnselectItem(GetHwnd(), HITEM_PTR(selections[n]));
 #endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
         }
     }
@@ -1778,19 +1930,22 @@ void wxTreeCtrl::UnselectAll()
     }
 }
 
-void wxTreeCtrl::SelectItem(const wxTreeItemId& item)
+void wxTreeCtrl::SelectItem(const wxTreeItemId& item, bool select)
 {
     if ( m_windowStyle & wxTR_MULTIPLE )
     {
 #if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
         // selecting the item means checking it
-        SetItemCheck(item);
+        SetItemCheck(item, select);
 #else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
-        ::SelectItem(GetHwnd(), HITEM(item));
+        ::SelectItem(GetHwnd(), HITEM(item), select);
 #endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
     }
     else
     {
+        wxASSERT_MSG( select,
+                      _T("SelectItem(false) works only for multiselect") );
+
         // inspite of the docs (MSDN Jan 99 edition), we don't seem to receive
         // the notification from the control (i.e. TVN_SELCHANG{ED|ING}), so
         // send them ourselves
@@ -1806,7 +1961,7 @@ void wxTreeCtrl::SelectItem(const wxTreeItemId& item)
             {
                 wxLogLastError(wxT("TreeView_SelectItem"));
             }
-            else
+            else // ok
             {
                 event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED);
                 (void)GetEventHandler()->ProcessEvent(event);
@@ -1816,6 +1971,16 @@ void wxTreeCtrl::SelectItem(const wxTreeItemId& item)
     }
 }
 
+void wxTreeCtrl::UnselectItem(const wxTreeItemId& item)
+{
+    SelectItem(item, false);
+}
+
+void wxTreeCtrl::ToggleItemSelection(const wxTreeItemId& item)
+{
+    SelectItem(item, !IsSelected(item));
+}
+
 void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item)
 {
     // no error return
@@ -1851,6 +2016,8 @@ void wxTreeCtrl::DeleteTextCtrl()
         m_textCtrl->SetHWND(0);
         delete m_textCtrl;
         m_textCtrl = NULL;
+
+        m_idEdited.Unset();
     }
 }
 
@@ -1861,6 +2028,7 @@ wxTextCtrl* wxTreeCtrl::EditLabel(const wxTreeItemId& item,
 
     DeleteTextCtrl();
 
+    m_idEdited = item;
     m_textCtrl = (wxTextCtrl *)textControlClass->CreateObject();
     HWND hWnd = (HWND) TreeView_EditLabel(GetHwnd(), HITEM(item));
 
@@ -1913,7 +2081,7 @@ wxTreeItemId wxTreeCtrl::HitTest(const wxPoint& point, int& flags)
 
     #undef TRANSLATE_FLAG
 
-    return wxTreeItemId((WXHTREEITEM) hitTestInfo.hItem);
+    return wxTreeItemId(hitTestInfo.hItem);
 }
 
 bool wxTreeCtrl::GetBoundingRect(const wxTreeItemId& item,
@@ -1987,6 +2155,8 @@ int wxTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
 
 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!)
@@ -2036,10 +2206,10 @@ bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id)
 // only do it during dragging, minimize wxWin overhead (this is important for
 // WM_MOUSEMOVE as they're a lot of them) by catching Windows messages directly
 // instead of passing by wxWin events
-long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 {
     bool processed = false;
-    long rc = 0;
+    WXLRESULT rc = 0;
     bool isMultiple = (GetWindowStyle() & wxTR_MULTIPLE) != 0;
 
     if ( (nMsg >= WM_MOUSEFIRST) && (nMsg <= WM_MOUSELAST) )
@@ -2053,10 +2223,10 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
         switch ( nMsg )
         {
             case WM_RBUTTONDOWN:
-                // if the item we are about to right click on
-                // is not already select, remove the entire
-                // previous selection
-                if (!::IsItemSelected(GetHwnd(), htItem))
+                // if the item we are about to right click on is not already
+                // selected or if we click outside of any item, remove the
+                // entire previous selection
+                if ( !htItem || !::IsItemSelected(GetHwnd(), htItem) )
                 {
                     UnselectAll();
                 }
@@ -2076,12 +2246,12 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
                         SetFocus();
 
                         // toggle selected state
-                        ToggleItemSelection(GetHwnd(), htItem);
+                        ::ToggleItemSelection(GetHwnd(), htItem);
 
                         ::SetFocus(GetHwnd(), htItem);
 
                         // reset on any click without Shift
-                        m_htSelStart = 0;
+                        m_htSelStart.Unset();
 
                         processed = true;
                     }
@@ -2093,8 +2263,7 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
                         if ( !m_htSelStart )
                         {
                             // take the focused item
-                            m_htSelStart = (WXHTREEITEM)
-                                TreeView_GetSelection(GetHwnd());
+                            m_htSelStart = TreeView_GetSelection(GetHwnd());
                         }
 
                         SelectRange(GetHwnd(), HITEM(m_htSelStart), htItem,
@@ -2108,24 +2277,38 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
                     {
                         // avoid doing anything if we click on the only
                         // currently selected item
+
                         wxArrayTreeItemIds selections;
                         size_t count = GetSelections(selections);
                         if ( count == 0 ||
-                                count > 1 ||
-                                    HITEM(selections[0]) != htItem )
+                             count > 1 ||
+                             HITEM_PTR(selections[0]) != htItem )
                         {
-                            // clear the previously selected items
-                            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);
+                            // 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
+                            {
+                                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);
+                            }
                         }
 
                         // reset on any click without Shift
-                        m_htSelStart = 0;
+                        m_htSelStart.Unset();
                     }
                 }
                 break;
@@ -2147,6 +2330,24 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
                 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);
+                    }
+                }
+
+                // fall through
+
             case WM_RBUTTONUP:
                 if ( m_dragImage )
                 {
@@ -2157,7 +2358,7 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
                     // generate the drag end event
                     wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, m_windowId);
 
-                    event.m_item = (WXHTREEITEM)htItem;
+                    event.m_item = htItem;
                     event.m_pointDrag = wxPoint(x, y);
                     event.SetEventObject(this);
 
@@ -2183,7 +2384,7 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
         {
             // TreeView_GetItemRect() will return false if item is not visible,
             // which may happen perfectly well
-            if ( TreeView_GetItemRect(GetHwnd(), HITEM(selections[n]),
+            if ( TreeView_GetItemRect(GetHwnd(), HITEM_PTR(selections[n]),
                                       &rect, true) )
             {
                 ::InvalidateRect(GetHwnd(), &rect, false);
@@ -2201,14 +2402,14 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
         HTREEITEM htSel = (HTREEITEM)TreeView_GetSelection(GetHwnd());
         if ( !m_htSelStart )
         {
-            m_htSelStart = (WXHTREEITEM)htSel;
+            m_htSelStart = htSel;
         }
 
         if ( wParam == VK_SPACE )
         {
             if ( bCtrl )
             {
-                ToggleItemSelection(GetHwnd(), htSel);
+                ::ToggleItemSelection(GetHwnd(), htSel);
             }
             else
             {
@@ -2296,7 +2497,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 
                 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
@@ -2311,7 +2512,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 eventType = wxEVT_COMMAND_TREE_BEGIN_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_editCancelled = false;
             }
@@ -2322,12 +2523,16 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 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 )
                 {
-                    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;
@@ -2337,18 +2542,35 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 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;
-                if (info->item.pszText == NULL)
-                {
-                    event.m_editCancelled = true;
-                }
-                 else
-                {
-                    event.m_editCancelled = false;
-                }
+                event.m_editCancelled = info->item.pszText == NULL;
+                break;
+            }
+
+#ifndef __WXWINCE__
+        // These *must* not be removed or TVN_GETINFOTIP will
+        // not be processed each time the mouse is moved
+        // and the tooltip will only ever update once.
+        case TTN_NEEDTEXTA:
+        case TTN_NEEDTEXTW:
+            {
+                *result = 0;
+
+                break;
+            }
+
+        case TVN_GETINFOTIP:
+            {
+                eventType = wxEVT_COMMAND_TREE_ITEM_GETTOOLTIP;
+                NMTVGETINFOTIP *info = (NMTVGETINFOTIP*)lParam;
+
+                // Which item are we trying to get a tooltip for?
+                event.m_item = info->hItem;
+
                 break;
             }
+#endif
 
         case TVN_GETDISPINFO:
             eventType = wxEVT_COMMAND_TREE_GET_INFO;
@@ -2362,7 +2584,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 
                 TV_DISPINFO *info = (TV_DISPINFO *)lParam;
 
-                event.m_item = (WXHTREEITEM) info->item.hItem;
+                event.m_item = info->item.hItem;
                 break;
             }
 
@@ -2392,7 +2614,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 
                 eventType = gs_expandEvents[what][how];
 
-                event.m_item = (WXHTREEITEM) tv->itemNew.hItem;
+                event.m_item = tv->itemNew.hItem;
             }
             break;
 
@@ -2405,9 +2627,6 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 // similar to the ones from a "real" WM_KEYDOWN so that
                 // CreateKeyEvent() works correctly
                 WXLPARAM lParam =
-//                    (::GetKeyState(VK_MENU) & 0x100 ? KF_ALTDOWN : 0) << 16;
-                     // Returns different negative values on WinME and WinNT,
-                     // so simply test for negative value.
                      (::GetKeyState(VK_MENU) < 0 ? KF_ALTDOWN : 0) << 16;
 
                 WXWPARAM wParam = info->wVKey;
@@ -2443,7 +2662,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
             }
             break;
 
-        // NB: MSLU is broken and sends TVN_SELCHANGEDA instead of 
+        // NB: MSLU is broken and sends TVN_SELCHANGEDA instead of
         //     TVN_SELCHANGEDW in Unicode mode under Win98. Therefore
         //     we have to handle both messages:
         case TVN_SELCHANGEDA:
@@ -2458,23 +2677,25 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                     eventType = wxEVT_COMMAND_TREE_SEL_CHANGING;
                 //else: already set above
 
-                if (hdr->code == TVN_SELCHANGINGW || 
+                if (hdr->code == TVN_SELCHANGINGW ||
                     hdr->code == TVN_SELCHANGEDW)
                 {
                     NM_TREEVIEWW* tv = (NM_TREEVIEWW *)lParam;
-                    event.m_item = (WXHTREEITEM) tv->itemNew.hItem;
-                    event.m_itemOld = (WXHTREEITEM) tv->itemOld.hItem;
+                    event.m_item = tv->itemNew.hItem;
+                    event.m_itemOld = tv->itemOld.hItem;
                 }
                 else
                 {
                     NM_TREEVIEWA* tv = (NM_TREEVIEWA *)lParam;
-                    event.m_item = (WXHTREEITEM) tv->itemNew.hItem;
-                    event.m_itemOld = (WXHTREEITEM) tv->itemOld.hItem;
+                    event.m_item = tv->itemNew.hItem;
+                    event.m_itemOld = tv->itemOld.hItem;
                 }
             }
             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;
@@ -2490,70 +2711,54 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 
                     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;
                             }
 
-                            HFONT hFont;
-                            if ( attr->HasFont() )
-                            {
-                                hFont = GetHfontOf(attr->GetFont());
-                            }
-                            else
-                            {
-                                hFont = 0;
-                            }
-
-                            wxColour colText;
-                            if ( attr->HasTextColour() )
-                            {
-                                colText = attr->GetTextColour();
-                            }
-                            else
-                            {
-                                colText = GetForegroundColour();
-                            }
+                            wxTreeItemAttr * const attr = it->second;
 
-                            // selection colours should override ours
-                            if ( nmcd.uItemState & CDIS_SELECTED )
-                            {
-                                lptvcd->clrTextBk =
-                                    ::GetSysColor(COLOR_HIGHLIGHT);
-                                lptvcd->clrText =
-                                    ::GetSysColor(COLOR_HIGHLIGHTTEXT);
-                            }
-                            else // !selected
+                            // selection colours should override ours,
+                            // otherwise it is too confusing ot the user
+                            if ( !(nmcd.uItemState & CDIS_SELECTED) )
                             {
                                 wxColour colBack;
                                 if ( attr->HasBackgroundColour() )
                                 {
                                     colBack = attr->GetBackgroundColour();
+                                    lptvcd->clrTextBk = wxColourToRGB(colBack);
                                 }
-                                else
+                            }
+
+                            // but we still want to keep the special foreground
+                            // colour when we don't have focus (we can't keep
+                            // it when we do, it would usually be unreadable on
+                            // the almost inverted bg colour...)
+                            if ( !(nmcd.uItemState & CDIS_SELECTED) ||
+                                    FindFocus() != this )
+                            {
+                                wxColour colText;
+                                if ( attr->HasTextColour() )
                                 {
-                                    colBack = GetBackgroundColour();
+                                    colText = attr->GetTextColour();
+                                    lptvcd->clrText = wxColourToRGB(colText);
                                 }
-
-                                lptvcd->clrText = wxColourToRGB(colText);
-                                lptvcd->clrTextBk = wxColourToRGB(colBack);
                             }
 
-                            // note that if we wanted to set colours for
-                            // individual columns (subitems), we would have
-                            // returned CDRF_NOTIFYSUBITEMREDRAW from here
-                            if ( hFont )
+                            if ( attr->HasFont() )
                             {
+                                HFONT hFont = GetHfontOf(attr->GetFont());
+
                                 ::SelectObject(nmcd.hdc, hFont);
 
                                 *result = CDRF_NEWFONT;
                             }
-                            else
+                            else // no specific font
                             {
                                 *result = CDRF_DODEFAULT;
                             }
@@ -2567,7 +2772,24 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 
             // we always process it
             return true;
-#endif // _WIN32_IE >= 0x300
+#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:
@@ -2579,7 +2801,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 {
                     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;
@@ -2629,7 +2851,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 
         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)
@@ -2661,7 +2883,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 HWND hText = TreeView_GetEditControl(GetHwnd());
                 if(hText != NULL)
                 {
-                    // MBN: if m_textCtrl already has an HWND, it is a stale 
+                    // MBN: if m_textCtrl already has an HWND, it is a stale
                     // pointer from a previous edit (because the user
                     // didn't modify the label before dismissing the control,
                     // and TVN_ENDLABELEDIT was not sent), so delete it
@@ -2696,6 +2918,18 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
             DeleteTextCtrl();
             break;
 
+#ifndef __WXWINCE__
+         case TVN_GETINFOTIP:
+            {
+                // If the user permitted a tooltip change, change it
+                if (event.IsAllowed())
+                {
+                    SetToolTip(event.m_label);
+                }
+            }
+            break;
+#endif
+
         case TVN_SELCHANGING:
         case TVN_ITEMEXPANDING:
             // return true to prevent the action from happening
@@ -2708,7 +2942,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
             // comctl32.dll or our code?
             {
                 NM_TREEVIEW* tv = (NM_TREEVIEW *)lParam;
-                wxTreeItemId id = (WXHTREEITEM)tv->itemNew.hItem;
+                wxTreeItemId id(tv->itemNew.hItem);
 
                 int image = GetItemImage(id, wxTreeItemIcon_Expanded);
                 if ( image != -1 )
@@ -2755,6 +2989,48 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
     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
+