wxWizardPage(Simple) can do two-phase creation now

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

diff --git a/src/msw/treectrl.cpp b/src/msw/treectrl.cpp
index c5c49719b435cfa2e9799b39d09982de71770342..84a8b01c20f42fdd61073a7b9593f7a5e9a14044 100644 (file)
--- a/src/msw/treectrl.cpp
+++ b/src/msw/treectrl.cpp
@@ -116,6 +116,7 @@ static HTREEITEM GetItemFromPoint(HWND hwndTV, int x, int y)
 // wrappers for TreeView_GetItem/TreeView_SetItem
 static bool IsItemSelected(HWND hwndTV, HTREEITEM hItem)
 {
 // wrappers for TreeView_GetItem/TreeView_SetItem
 static bool IsItemSelected(HWND hwndTV, HTREEITEM hItem)
 {

+

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


@@ -291,6 +292,8 @@ struct wxTreeViewItem : public TV_ITEM
                    UINT mask_,                  // fields which are valid
                    UINT stateMask_ = 0)         // for TVIF_STATE only
     {
                    UINT mask_,                  // fields which are valid
                    UINT stateMask_ = 0)         // for TVIF_STATE only
     {

+        wxZeroMemory(*this);
+

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


@@ -298,10 +301,39 @@ struct wxTreeViewItem : public TV_ITEM
     }
 };
 
     }
 };
 

+// wxVirutalNode is used in place of a single root when 'hidden' root is
+// specified.
+class wxVirtualNode : public wxTreeViewItem
+{
+public:
+    wxVirtualNode(wxTreeItemData *data)
+        : wxTreeViewItem(TVI_ROOT, 0)
+    {
+        m_data = data;
+    }
+
+    ~wxVirtualNode()
+    {
+        delete m_data;
+    }
+
+    wxTreeItemData *GetData() const { return m_data; }
+    void SetData(wxTreeItemData *data) { delete m_data; m_data = data; }
+
+private:
+    wxTreeItemData *m_data;
+};
+

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

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

 // a class which encapsulates the tree traversal logic: it vists all (unless
 // OnVisit() returns FALSE) items under the given one
 class wxTreeTraversal
 // a class which encapsulates the tree traversal logic: it vists all (unless
 // OnVisit() returns FALSE) items under the given one
 class wxTreeTraversal


@@ -345,6 +377,12 @@ public:
 
     virtual bool OnVisit(const wxTreeItemId& item)
     {
 
     virtual bool OnVisit(const wxTreeItemId& item)
     {

+        // can't visit a virtual node.
+        if ( (GetTree()->GetRootItem() == item) && (GetTree()->GetWindowStyle() & wxTR_HIDE_ROOT))
+        {
+            return TRUE;
+        }
+

 #if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
         if ( GetTree()->IsItemChecked(item) )
 #else
 #if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
         if ( GetTree()->IsItemChecked(item) )
 #else


@@ -537,6 +575,7 @@ void wxTreeCtrl::Init()
     m_hasAnyAttr = FALSE;
     m_dragImage = NULL;
     m_htSelStart = 0;
     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
     // with the wxEVT_XXX values being allocated during run-time only
 
     // initialize the global array of events now as it can't be done statically
     // with the wxEVT_XXX values being allocated during run-time only


@@ -691,6 +730,7 @@ wxTreeCtrl::~wxTreeCtrl()
     DeleteTextCtrl();
 
     // delete user data to prevent memory leaks
     DeleteTextCtrl();
 
     // delete user data to prevent memory leaks

+    // also deletes hidden root node storage.

     DeleteAllItems();
 
     if (m_ownsImageListNormal) delete m_imageListNormal;
     DeleteAllItems();
 
     if (m_ownsImageListNormal) delete m_imageListNormal;


@@ -705,6 +745,9 @@ wxTreeCtrl::~wxTreeCtrl()
 
 bool wxTreeCtrl::DoGetItem(wxTreeViewItem* tvItem) const
 {
 
 bool wxTreeCtrl::DoGetItem(wxTreeViewItem* tvItem) const
 {

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

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


@@ -758,7 +801,9 @@ void wxTreeCtrl::SetAnyImageList(wxImageList *imageList, int which)
 
 void wxTreeCtrl::SetImageList(wxImageList *imageList)
 {
 
 void wxTreeCtrl::SetImageList(wxImageList *imageList)
 {

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

     SetAnyImageList(m_imageListNormal = imageList, TVSIL_NORMAL);
     m_ownsImageListNormal = FALSE;
 }
     SetAnyImageList(m_imageListNormal = imageList, TVSIL_NORMAL);
     m_ownsImageListNormal = FALSE;
 }


@@ -840,6 +885,9 @@ wxString wxTreeCtrl::GetItemText(const wxTreeItemId& item) const
 
 void wxTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text)
 {
 
 void wxTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text)
 {

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

     wxTreeViewItem tvItem(item, TVIF_TEXT);
     tvItem.pszText = (wxChar *)text.c_str();  // conversion is ok
     DoSetItem(&tvItem);
     wxTreeViewItem tvItem(item, TVIF_TEXT);
     tvItem.pszText = (wxChar *)text.c_str();  // conversion is ok
     DoSetItem(&tvItem);


@@ -898,6 +946,12 @@ void wxTreeCtrl::DoSetItemImages(const wxTreeItemId& item,
 int wxTreeCtrl::GetItemImage(const wxTreeItemId& item,
                              wxTreeItemIcon which) const
 {
 int wxTreeCtrl::GetItemImage(const wxTreeItemId& item,
                              wxTreeItemIcon which) const
 {

+    if ( (HITEM(item) == TVI_ROOT) && (m_windowStyle & wxTR_HIDE_ROOT) )
+    {
+        // TODO: Maybe a hidden root can still provide images?
+        return -1;
+    }
+

     if ( HasIndirectData(item) )
     {
         return DoGetItemImageFromData(item, which);
     if ( HasIndirectData(item) )
     {
         return DoGetItemImageFromData(item, which);


@@ -931,6 +985,12 @@ int wxTreeCtrl::GetItemImage(const wxTreeItemId& item,
 void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image,
                               wxTreeItemIcon which)
 {
 void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image,
                               wxTreeItemIcon which)
 {

+    if ( IS_VIRTUAL_ROOT(item) )
+    {
+        // TODO: Maybe a hidden root can still store images?
+        return;
+    }
+

     int imageNormal, imageSel;
     switch ( which )
     {
     int imageNormal, imageSel;
     switch ( which )
     {


@@ -984,6 +1044,14 @@ void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image,
 wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const
 {
     wxTreeViewItem tvItem(item, TVIF_PARAM);
 wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const
 {
     wxTreeViewItem tvItem(item, TVIF_PARAM);

+
+    // Hidden root may have data.
+    if ( IS_VIRTUAL_ROOT(item) )
+    {
+        return GET_VIRTUAL_ROOT()->GetData();
+    }
+
+    // Visible node.

     if ( !DoGetItem(&tvItem) )
     {
         return NULL;
     if ( !DoGetItem(&tvItem) )
     {
         return NULL;


@@ -1000,6 +1068,11 @@ wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const
 
 void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data)
 {
 
 void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data)
 {

+    if ( IS_VIRTUAL_ROOT(item) )
+    {
+        GET_VIRTUAL_ROOT()->SetData(data);
+    }
+

     // first, associate this piece of data with this item
     if ( data )
     {
     // first, associate this piece of data with this item
     if ( data )
     {


@@ -1054,6 +1127,9 @@ bool wxTreeCtrl::HasIndirectData(const wxTreeItemId& item) const
 
 void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has)
 {
 
 void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has)
 {

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

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


@@ -1061,6 +1137,9 @@ void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has)
 
 void wxTreeCtrl::SetItemBold(const wxTreeItemId& item, bool bold)
 {
 
 void wxTreeCtrl::SetItemBold(const wxTreeItemId& item, bool bold)
 {

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

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


@@ -1068,6 +1147,9 @@ void wxTreeCtrl::SetItemBold(const wxTreeItemId& item, bool bold)
 
 void wxTreeCtrl::SetItemDropHighlight(const wxTreeItemId& item, bool highlight)
 {
 
 void wxTreeCtrl::SetItemDropHighlight(const wxTreeItemId& item, bool highlight)
 {

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

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


@@ -1075,6 +1157,9 @@ void wxTreeCtrl::SetItemDropHighlight(const wxTreeItemId& item, bool highlight)
 
 void wxTreeCtrl::RefreshItem(const wxTreeItemId& item)
 {
 
 void wxTreeCtrl::RefreshItem(const wxTreeItemId& item)
 {

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

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


@@ -1193,6 +1278,10 @@ bool wxTreeCtrl::IsBold(const wxTreeItemId& item) const
 
 wxTreeItemId wxTreeCtrl::GetRootItem() const
 {
 
 wxTreeItemId wxTreeCtrl::GetRootItem() const
 {

+    // Root may be real (visible) or virtual (hidden).
+    if ( GET_VIRTUAL_ROOT() )
+        return TVI_ROOT;
+

     return wxTreeItemId((WXHTREEITEM) TreeView_GetRoot(GetHwnd()));
 }
 
     return wxTreeItemId((WXHTREEITEM) TreeView_GetRoot(GetHwnd()));
 }
 


@@ -1206,7 +1295,24 @@ wxTreeItemId wxTreeCtrl::GetSelection() const
 
 wxTreeItemId wxTreeCtrl::GetParent(const wxTreeItemId& item) const
 {
 
 wxTreeItemId wxTreeCtrl::GetParent(const wxTreeItemId& item) const
 {

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

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


@@ -1292,6 +1398,8 @@ void wxTreeCtrl::SetItemCheck(const wxTreeItemId& item, bool check)
     // receive the desired information.
     wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK);
 
     // receive the desired information.
     wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK);
 

+    DoGetItem(&tvItem);
+

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


@@ -1397,7 +1505,16 @@ wxTreeItemId wxTreeCtrl::AddRoot(const wxString& text,
                                  int image, int selectedImage,
                                  wxTreeItemData *data)
 {
                                  int image, int selectedImage,
                                  wxTreeItemData *data)
 {

-    return DoInsertItem(wxTreeItemId((long) (WXHTREEITEM) 0), (long)(WXHTREEITEM) 0,
+
+    if ( m_windowStyle & wxTR_HIDE_ROOT )
+    {
+        // create a virtual root item, the parent for all the others
+        m_pVirtualRoot = new wxVirtualNode(data);
+
+        return TVI_ROOT;
+    }
+
+    return DoInsertItem(wxTreeItemId((long)(WXHTREEITEM) 0), (long)(WXHTREEITEM) 0,

                         text, image, selectedImage, data);
 }
 
                         text, image, selectedImage, data);
 }
 


@@ -1486,6 +1603,9 @@ void wxTreeCtrl::DeleteChildren(const wxTreeItemId& item)
 
 void wxTreeCtrl::DeleteAllItems()
 {
 
 void wxTreeCtrl::DeleteAllItems()
 {

+    // delete stored root item.
+    delete GET_VIRTUAL_ROOT();
+

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


@@ -1500,6 +1620,10 @@ void wxTreeCtrl::DoExpand(const wxTreeItemId& item, int flag)
                   flag == TVE_TOGGLE,
                   wxT("Unknown flag in wxTreeCtrl::DoExpand") );
 
                   flag == TVE_TOGGLE,
                   wxT("Unknown flag in wxTreeCtrl::DoExpand") );
 

+    // A hidden root can be neither expanded nor collapsed.
+    wxCHECK_RET( !(m_windowStyle & wxTR_HIDE_ROOT) || (HITEM(item) != TVI_ROOT),
+                 wxT("Can't expand/collapse hidden root node!") )
+

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


@@ -1639,24 +1763,6 @@ void wxTreeCtrl::ScrollTo(const wxTreeItemId& item)
 
 wxTextCtrl* wxTreeCtrl::GetEditControl() const
 {
 
 wxTextCtrl* wxTreeCtrl::GetEditControl() const
 {

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

     return m_textCtrl;
 }
 
     return m_textCtrl;
 }
 


@@ -1686,20 +1792,19 @@ wxTextCtrl* wxTreeCtrl::EditLabel(const wxTreeItemId& item,
 
     DeleteTextCtrl();
 
 
     DeleteTextCtrl();
 

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

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

+        delete m_textCtrl;
+        m_textCtrl = NULL;

         return NULL;
     }
 
         return NULL;
     }
 

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

     return m_textCtrl;
 }
 
     return m_textCtrl;
 }
 


@@ -2175,13 +2280,12 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 eventType = wxEVT_COMMAND_TREE_KEY_DOWN;
                 TV_KEYDOWN *info = (TV_KEYDOWN *)lParam;
 
                 eventType = wxEVT_COMMAND_TREE_KEY_DOWN;
                 TV_KEYDOWN *info = (TV_KEYDOWN *)lParam;
 

-                // we pass 0 as last CreateKeyEvent() parameter because we
+                // we pass 0 as 2 last CreateKeyEvent() parameters because we

                 // don't have access to the real key press flags here - but as
                 // it is only used to determin wxKeyEvent::m_altDown flag it's
                 // not too bad
                 event.m_evtKey = CreateKeyEvent(wxEVT_KEY_DOWN,
                 // don't have access to the real key press flags here - but as
                 // it is only used to determin wxKeyEvent::m_altDown flag it's
                 // not too bad
                 event.m_evtKey = CreateKeyEvent(wxEVT_KEY_DOWN,

-                                                wxCharCodeMSWToWX(info->wVKey),
-                                                0);
+                                                wxCharCodeMSWToWX(info->wVKey));

 
                 // a separate event for Space/Return
                 if ( !wxIsCtrlDown() && !wxIsShiftDown() &&
 
                 // a separate event for Space/Return
                 if ( !wxIsCtrlDown() && !wxIsShiftDown() &&


@@ -2402,6 +2506,32 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
         case TVN_BEGINLABELEDIT:
             // return TRUE to cancel label editing
             *result = !event.IsAllowed();
         case TVN_BEGINLABELEDIT:
             // return TRUE to cancel label editing
             *result = !event.IsAllowed();

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

             break;
 
         case TVN_ENDLABELEDIT:
             break;
 
         case TVN_ENDLABELEDIT: