]> git.saurik.com Git - wxWidgets.git/blobdiff - samples/treectrl/treetest.cpp
define wxUTF8Buf as the type returned by wxString::utf8_str()
[wxWidgets.git] / samples / treectrl / treetest.cpp
index 069506f86af1f585335ac7a64dc984485d7ef1ed..307b3de5753821c8a9818225c0313aba681ac8ae 100644 (file)
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-  #pragma hdrstop
+    #pragma hdrstop
 #endif
 
 #ifndef WX_PRECOMP
-  #include "wx/wx.h"
-  #include "wx/log.h"
+    #include "wx/wx.h"
+    #include "wx/log.h"
 #endif
 
 #include "wx/colordlg.h"
 #include "wx/numdlg.h"
 
+#include "wx/artprov.h"
 #include "wx/image.h"
 #include "wx/imaglist.h"
 #include "wx/treectrl.h"
 #include "icon4.xpm"
 #include "icon5.xpm"
 
-#if defined(__WXGTK__) || defined(__WXX11__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__) || defined(__WXPM__)
-#include "mondrian.xpm"
+#ifndef __WXMSW__
+    #include "../sample.xpm"
 #endif
 
-
 // verify that the item is ok and insult the user if it is not
 #define CHECK_ITEM( item ) if ( !item.IsOk() ) {                                 \
                              wxMessageBox(wxT("Please select some item first!"), \
@@ -64,6 +64,7 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 
     MENU_LINK(Quit)
     MENU_LINK(About)
+    MENU_LINK(ClearLog)
 
     MENU_LINK(TogButtons)
     MENU_LINK(TogTwist)
@@ -77,6 +78,7 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
     MENU_LINK(SetBgColour)
     MENU_LINK(ResetStyle)
 
+    MENU_LINK(Highlight)
     MENU_LINK(Dump)
 #ifndef NO_MULTIPLE_SELECTION
     MENU_LINK(DumpSelected)
@@ -96,6 +98,7 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
     MENU_LINK(DeleteAll)
     MENU_LINK(Recreate)
     MENU_LINK(ToggleImages)
+    MENU_LINK(ToggleAlternateImages)
     MENU_LINK(ToggleButtons)
     MENU_LINK(SetImageSize)
     MENU_LINK(CollapseAndReset)
@@ -108,6 +111,13 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
     MENU_LINK(DecSpacing)
     MENU_LINK(ToggleIcon)
     MENU_LINK(SelectRoot)
+
+    MENU_LINK(ShowFirstVisible)
+#ifdef wxHAS_LAST_VISIBLE
+    MENU_LINK(ShowLastVisible)
+#endif // wxHAS_LAST_VISIBLE
+    MENU_LINK(ShowNextVisible)
+    MENU_LINK(ShowPrevVisible)
 #undef MENU_LINK
 
 END_EVENT_TABLE()
@@ -137,7 +147,7 @@ BEGIN_EVENT_TABLE(MyTreeCtrl, wxTreeCtrl)
     EVT_TREE_KEY_DOWN(TreeTest_Ctrl, MyTreeCtrl::OnTreeKeyDown)
     EVT_TREE_ITEM_ACTIVATED(TreeTest_Ctrl, MyTreeCtrl::OnItemActivated)
 
-    // so many differents ways to handle right mouse button clicks...
+    // so many different ways to handle right mouse button clicks...
     EVT_CONTEXT_MENU(MyTreeCtrl::OnContextMenu)
     // EVT_TREE_ITEM_MENU is the preferred event for creating context menus
     // on a tree control, because it includes the point of the click or item,
@@ -154,6 +164,9 @@ IMPLEMENT_APP(MyApp)
 
 bool MyApp::OnInit()
 {
+    if ( !wxApp::OnInit() )
+        return false;
+
     // Create the main frame window
     MyFrame *frame = new MyFrame(wxT("wxTreeCtrl Test"), 50, 50, 450, 600);
 
@@ -179,7 +192,7 @@ MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
     SetBackgroundColour(wxColour(255, 255, 255));
 
     // Give it an icon
-    SetIcon(wxICON(mondrian));
+    SetIcon(wxICON(sample));
 
 #if wxUSE_MENUS
     // Make a menubar
@@ -188,6 +201,8 @@ MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
            *tree_menu = new wxMenu,
            *item_menu = new wxMenu;
 
+    file_menu->Append(TreeTest_ClearLog, wxT("&Clear log\tCtrl-L"));
+    file_menu->AppendSeparator();
     file_menu->Append(TreeTest_About, wxT("&About..."));
     file_menu->AppendSeparator();
     file_menu->Append(TreeTest_Quit, wxT("E&xit\tAlt-X"));
@@ -203,9 +218,10 @@ MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
     style_menu->AppendCheckItem(TreeTest_TogFullHighlight, wxT("Toggle &full row highlight"));
     style_menu->AppendCheckItem(TreeTest_TogEdit, wxT("Toggle &edit mode"));
 #ifndef NO_MULTIPLE_SELECTION
-    style_menu->AppendCheckItem(TreeTest_ToggleSel, wxT("Toggle &selection mode"));
+    style_menu->AppendCheckItem(TreeTest_ToggleSel, wxT("Toggle &selection mode\tCtrl-S"));
 #endif // NO_MULTIPLE_SELECTION
     style_menu->AppendCheckItem(TreeTest_ToggleImages, wxT("Toggle show ima&ges"));
+    style_menu->AppendCheckItem(TreeTest_ToggleAlternateImages, wxT("Toggle alternate images"));
     style_menu->Append(TreeTest_SetImageSize, wxT("Set image si&ze..."));
     style_menu->AppendSeparator();
     style_menu->Append(TreeTest_SetFgColour, wxT("Set &foreground colour..."));
@@ -245,6 +261,13 @@ MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
     item_menu->Append(TreeTest_ClearBold, wxT("Make item &not bold"));
     item_menu->AppendSeparator();
     item_menu->Append(TreeTest_ToggleIcon, wxT("Toggle the item's &icon"));
+    item_menu->AppendSeparator();
+    item_menu->Append(TreeTest_ShowFirstVisible, wxT("Show &first visible"));
+#ifdef wxHAS_LAST_VISIBLE
+    item_menu->Append(TreeTest_ShowLastVisible, wxT("Show &last visible"));
+#endif // wxHAS_LAST_VISIBLE
+    item_menu->Append(TreeTest_ShowNextVisible, wxT("Show &next visible"));
+    item_menu->Append(TreeTest_ShowPrevVisible, wxT("Show &previous visible"));
 
 #ifndef NO_MULTIPLE_SELECTION
     item_menu->AppendSeparator();
@@ -261,9 +284,11 @@ MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
     SetMenuBar(menu_bar);
 #endif // wxUSE_MENUS
 
+    m_panel = new wxPanel(this);
+
 #if wxUSE_LOG
     // create the controls
-    m_textCtrl = new wxTextCtrl(this, wxID_ANY, wxT(""),
+    m_textCtrl = new wxTextCtrl(m_panel, wxID_ANY, wxT(""),
                                 wxDefaultPosition, wxDefaultSize,
                                 wxTE_MULTILINE | wxSUNKEN_BORDER);
 #endif // wxUSE_LOG
@@ -271,6 +296,7 @@ MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h)
     CreateTreeWithDefStyle();
 
     menu_bar->Check(TreeTest_ToggleImages, true);
+    menu_bar->Check(TreeTest_ToggleAlternateImages, false);
 
 #if wxUSE_STATUSBAR
     // create a status bar
@@ -322,9 +348,12 @@ void MyFrame::CreateTreeWithDefStyle()
 
 void MyFrame::CreateTree(long style)
 {
-    m_treeCtrl = new MyTreeCtrl(this, TreeTest_Ctrl,
+    m_treeCtrl = new MyTreeCtrl(m_panel, TreeTest_Ctrl,
                                 wxDefaultPosition, wxDefaultSize,
                                 style);
+
+    GetMenuBar()->Enable(TreeTest_SelectRoot, !(style & wxTR_HIDE_ROOT));
+
     Resize();
 }
 
@@ -350,14 +379,20 @@ void MyFrame::OnIdle(wxIdleEvent& event)
     if ( m_treeCtrl )
     {
         wxTreeItemId idRoot = m_treeCtrl->GetRootItem();
+        wxString status;
+        if (idRoot.IsOk())
+        {
+            wxTreeItemId idLast = m_treeCtrl->GetLastChild(idRoot);
+            status = wxString::Format(
+                _T("Root/last item is %svisible/%svisible"),
+                m_treeCtrl->IsVisible(idRoot) ? _T("") : _T("not "),
+                idLast.IsOk() && m_treeCtrl->IsVisible(idLast)
+                    ? _T("") : _T("not "));
+        }
+        else
+            status = _T("No root item");
 
-        SetStatusText(wxString::Format
-                      (
-                        _T("Root/last item is %svisible/%svisible"),
-                        m_treeCtrl->IsVisible(idRoot) ? _T("") : _T("not "),
-                        m_treeCtrl->IsVisible(m_treeCtrl->GetLastChild(idRoot))
-                            ? _T("") : _T("not ")
-                      ), 1);
+        SetStatusText(status, 1);
     }
 #endif // wxUSE_STATUSBAR
 
@@ -382,12 +417,11 @@ void MyFrame::Resize()
 {
     wxSize size = GetClientSize();
     m_treeCtrl->SetSize(0, 0, size.x, size.y
-#if !wxUSE_LOG
-                                            );
-#else
+#if wxUSE_LOG
                                             *2/3);
-    m_textCtrl->SetSize(0, 2*size.y/3, size.x, size.y/3);
+    m_textCtrl->SetSize(0, 2*size.y/3, size.x, size.y/3
 #endif
+    );
 }
 
 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
@@ -403,6 +437,11 @@ void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
                  wxOK | wxICON_INFORMATION, this);
 }
 
+void MyFrame::OnClearLog(wxCommandEvent& WXUNUSED(event))
+{
+    m_textCtrl->Clear();
+}
+
 void MyFrame::OnRename(wxCommandEvent& WXUNUSED(event))
 {
     wxTreeItemId item = m_treeCtrl->GetSelection();
@@ -455,6 +494,26 @@ void MyFrame::DoSort(bool reverse)
     m_treeCtrl->DoSortChildren(item, reverse);
 }
 
+void MyFrame::OnHighlight(wxCommandEvent& WXUNUSED(event))
+{
+    wxTreeItemId id = m_treeCtrl->GetSelection();
+
+    CHECK_ITEM( id );
+
+    wxRect r;
+    if ( !m_treeCtrl->GetBoundingRect(id, r, true /* text, not full row */) )
+    {
+        wxLogMessage(_T("Failed to get bounding item rect"));
+        return;
+    }
+
+    wxClientDC dc(m_treeCtrl);
+    dc.SetBrush(*wxRED);
+    dc.SetPen(*wxTRANSPARENT_PEN);
+    dc.DrawRectangle(r);
+    m_treeCtrl->Update();
+}
+
 void MyFrame::OnDump(wxCommandEvent& WXUNUSED(event))
 {
     wxTreeItemId root = m_treeCtrl->GetSelection();
@@ -476,7 +535,7 @@ void MyFrame::OnDumpSelected(wxCommandEvent& WXUNUSED(event))
     wxArrayTreeItemIds array;
 
     size_t count = m_treeCtrl->GetSelections(array);
-    wxLogMessage(wxT("%u items selected"), count);
+    wxLogMessage(wxT("%u items selected"), unsigned(count));
 
     for ( size_t n = 0; n < count; n++ )
     {
@@ -491,7 +550,8 @@ void MyFrame::OnSelect(wxCommandEvent& WXUNUSED(event))
 
 void MyFrame::OnSelectRoot(wxCommandEvent& WXUNUSED(event))
 {
-    m_treeCtrl->SelectItem(m_treeCtrl->GetRootItem());
+    if ( !m_treeCtrl->HasFlag(wxTR_HIDE_ROOT) )
+        m_treeCtrl->SelectItem(m_treeCtrl->GetRootItem());
 }
 
 void MyFrame::OnUnselect(wxCommandEvent& WXUNUSED(event))
@@ -566,6 +626,14 @@ void MyFrame::OnToggleImages(wxCommandEvent& WXUNUSED(event))
     }
 }
 
+void MyFrame::OnToggleAlternateImages(wxCommandEvent& WXUNUSED(event))
+{
+    bool alternateImages = m_treeCtrl->AlternateImages();
+
+    m_treeCtrl->SetAlternateImages(!alternateImages);
+    m_treeCtrl->CreateImageList(0);
+}
+
 void MyFrame::OnToggleButtons(wxCommandEvent& WXUNUSED(event))
 {
 #if USE_GENERIC_TREECTRL || !defined(__WXMSW__)
@@ -647,6 +715,38 @@ void MyFrame::OnToggleIcon(wxCommandEvent& WXUNUSED(event))
     m_treeCtrl->DoToggleIcon(item);
 }
 
+void MyFrame::DoShowFirstOrLast(TreeFunc0_t pfn, const wxString& label)
+{
+    const wxTreeItemId item = (m_treeCtrl->*pfn)();
+
+    if ( !item.IsOk() )
+        wxLogMessage("There is no %s item", label);
+    else
+        wxLogMessage("The %s item is \"%s\"",
+                     label, m_treeCtrl->GetItemText(item));
+}
+
+void MyFrame::DoShowNextOrPrev(TreeFunc1_t pfn, const wxString& label)
+{
+    wxTreeItemId item = m_treeCtrl->GetSelection();
+
+    CHECK_ITEM( item );
+
+    if ( !m_treeCtrl->IsVisible(item) )
+    {
+        wxLogMessage("The selected item must be visible.");
+        return;
+    }
+
+    item = (m_treeCtrl->*pfn)(item);
+
+    if ( !item.IsOk() )
+        wxLogMessage("There is no %s item", label);
+    else
+        wxLogMessage("The %s item is \"%s\"",
+                     label, m_treeCtrl->GetItemText(item));
+}
+
 void MyFrame::OnSetFgColour(wxCommandEvent& WXUNUSED(event))
 {
     wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetForegroundColour());
@@ -671,7 +771,8 @@ IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl)
 MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id,
                        const wxPoint& pos, const wxSize& size,
                        long style)
-          : wxTreeCtrl(parent, id, pos, size, style)
+          : wxTreeCtrl(parent, id, pos, size, style),
+            m_alternateImages(false)
 {
     m_reverseSort = false;
 
@@ -699,15 +800,29 @@ void MyTreeCtrl::CreateImageList(int size)
     // should correspond to TreeCtrlIcon_xxx enum
     wxBusyCursor wait;
     wxIcon icons[5];
-    icons[0] = wxIcon(icon1_xpm);
-    icons[1] = wxIcon(icon2_xpm);
-    icons[2] = wxIcon(icon3_xpm);
-    icons[3] = wxIcon(icon4_xpm);
-    icons[4] = wxIcon(icon5_xpm);
 
-    int sizeOrig = icons[0].GetWidth();
+    if (m_alternateImages)
+    {
+        icons[TreeCtrlIcon_File] = wxIcon(icon1_xpm);
+        icons[TreeCtrlIcon_FileSelected] = wxIcon(icon2_xpm);
+        icons[TreeCtrlIcon_Folder] = wxIcon(icon3_xpm);
+        icons[TreeCtrlIcon_FolderSelected] = wxIcon(icon4_xpm);
+        icons[TreeCtrlIcon_FolderOpened] = wxIcon(icon5_xpm);
+    }
+    else
+    {
+        wxSize iconSize(size, size);
+
+        icons[TreeCtrlIcon_File] =
+        icons[TreeCtrlIcon_FileSelected] = wxArtProvider::GetIcon(wxART_NORMAL_FILE, wxART_LIST, iconSize);
+        icons[TreeCtrlIcon_Folder] =
+        icons[TreeCtrlIcon_FolderSelected] =
+        icons[TreeCtrlIcon_FolderOpened] = wxArtProvider::GetIcon(wxART_FOLDER, wxART_LIST, iconSize);
+    }
+
     for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
     {
+        int sizeOrig = icons[0].GetWidth();
         if ( size == sizeOrig )
         {
             images->Add(icons[i]);
@@ -736,12 +851,25 @@ void MyTreeCtrl::CreateButtonsImageList(int size)
     // should correspond to TreeCtrlIcon_xxx enum
     wxBusyCursor wait;
     wxIcon icons[4];
-    icons[0] = wxIcon(icon3_xpm);   // closed
-    icons[1] = wxIcon(icon3_xpm);   // closed, selected
-    icons[2] = wxIcon(icon5_xpm);   // open
-    icons[3] = wxIcon(icon5_xpm);   // open, selected
 
-    for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
+    if (m_alternateImages)
+    {
+        icons[0] = wxIcon(icon3_xpm);   // closed
+        icons[1] = wxIcon(icon3_xpm);   // closed, selected
+        icons[2] = wxIcon(icon5_xpm);   // open
+        icons[3] = wxIcon(icon5_xpm);   // open, selected
+    }
+    else
+    {
+        wxSize iconSize(size, size);
+
+        icons[0] =                                                                 // closed
+        icons[1] = wxArtProvider::GetIcon(wxART_FOLDER, wxART_LIST, iconSize);     // closed, selected
+        icons[2] =                                                                 // open
+        icons[3] = wxArtProvider::GetIcon(wxART_FOLDER_OPEN, wxART_LIST, iconSize);// open, selected
+    }
+
+   for ( size_t i = 0; i < WXSIZEOF(icons); i++ )
     {
         int sizeOrig = icons[i].GetWidth();
         if ( size == sizeOrig )
@@ -789,9 +917,9 @@ void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent,
         {
             // at depth 1 elements won't have any more children
             if ( hasChildren )
-                str.Printf(wxT("%s child %d"), wxT("Folder"), n + 1);
+                str.Printf(wxT("%s child %u"), wxT("Folder"), unsigned(n + 1));
             else
-                str.Printf(wxT("%s child %d.%d"), wxT("File"), folder, n + 1);
+                str.Printf(wxT("%s child %u.%u"), wxT("File"), unsigned(folder), unsigned(n + 1));
 
             // here we pass to AppendItem() normal and selected item images (we
             // suppose that selected image follows the normal one in the enum)
@@ -834,7 +962,7 @@ void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
     wxTreeItemId rootId = AddRoot(wxT("Root"),
                                   image, image,
                                   new MyTreeItemData(wxT("Root item")));
-    if ( image != -1 )
+    if ( !HasFlag(wxTR_HIDE_ROOT) && image != -1 )
     {
         SetItemImage(rootId, TreeCtrlIcon_FolderOpened, wxTreeItemIcon_Expanded);
     }
@@ -842,7 +970,8 @@ void MyTreeCtrl::AddTestItemsToTree(size_t numChildren,
     AddItemsRecursively(rootId, numChildren, depth, 0);
 
     // set some colours/fonts for testing
-    SetItemFont(rootId, *wxITALIC_FONT);
+    if ( !HasFlag(wxTR_HIDE_ROOT) )
+        SetItemFont(rootId, *wxITALIC_FONT);
 
     wxTreeItemIdValue cookie;
     wxTreeItemId id = GetFirstChild(rootId, cookie);
@@ -889,12 +1018,22 @@ void MyTreeCtrl::DoToggleIcon(const wxTreeItemId& item)
     SetItemImage(item, image, wxTreeItemIcon_Selected);
 }
 
+void MyTreeCtrl::LogEvent(const wxChar *name, const wxTreeEvent& event)
+{
+    wxTreeItemId item = event.GetItem();
+    wxString text;
+    if ( item.IsOk() )
+        text << _T('"') << GetItemText(item).c_str() << _T('"');
+    else
+        text = _T("invalid item");
+    wxLogMessage(wxT("%s(%s)"), name, text.c_str());
+}
 
 // avoid repetition
 #define TREE_EVENT_HANDLER(name)                                 \
 void MyTreeCtrl::name(wxTreeEvent& event)                        \
 {                                                                \
-    wxLogMessage(wxT(#name));                                    \
+    LogEvent(_T(#name), event);                                  \
     SetLastItem(wxTreeItemId());                                 \
     event.Skip();                                                \
 }
@@ -1052,8 +1191,12 @@ void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event)
     {
         m_draggedItem = event.GetItem();
 
-        wxLogMessage(wxT("OnBeginDrag: started dragging %s"),
-                     GetItemText(m_draggedItem).c_str());
+        wxPoint clientpt = event.GetPoint();
+        wxPoint screenpt = ClientToScreen(clientpt);
+
+        wxLogMessage(wxT("OnBeginDrag: started dragging %s at screen coords (%i,%i)"),
+                     GetItemText(m_draggedItem).c_str(),
+                     screenpt.x, screenpt.y);
 
         event.Allow();
     }
@@ -1163,43 +1306,21 @@ void MyTreeCtrl::OnItemMenu(wxTreeEvent& event)
     wxTreeItemId itemId = event.GetItem();
     MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId)
                                          : NULL;
+    wxPoint clientpt = event.GetPoint();
+    wxPoint screenpt = ClientToScreen(clientpt);
 
-    wxLogMessage(wxT("OnItemMenu for item \"%s\""), item ? item->GetDesc()
-                                                         : _T(""));
+    wxLogMessage(wxT("OnItemMenu for item \"%s\" at screen coords (%i, %i)"), 
+                 item ? item->GetDesc() : _T(""), screenpt.x, screenpt.y);
 
+    ShowMenu(itemId, clientpt);
     event.Skip();
 }
 
 void MyTreeCtrl::OnContextMenu(wxContextMenuEvent& event)
 {
     wxPoint pt = event.GetPosition();
-    wxTreeItemId item;
-    if ( !HasFlag(wxTR_MULTIPLE) )
-        item = GetSelection();
-    wxLogMessage(wxT("OnContextMenu at screen coords (%i, %i)"), pt.x, pt.y);
-
-    // check if event was generated by keyboard (MSW-specific?)
-    if ( pt.x == -1 && pt.y == -1 ) //(this is how MSW indicates it)
-    {
-        // attempt to guess where to show the menu
-        if ( item.IsOk() )
-        {
-            // if an item was clicked, show menu to the right of it
-            wxRect rect;
-            GetBoundingRect(item, rect, true /* only the label */);
-            pt = wxPoint(rect.GetRight(), rect.GetTop());
-        }
-        else
-        {
-            pt = wxPoint(0, 0);
-        }
-    }
-    else // event was generated by mouse, use supplied coords
-    {
-        pt = ScreenToClient(pt);
-    }
 
-    ShowMenu(item, pt);
+    wxLogMessage(wxT("OnContextMenu at screen coords (%i, %i)"), pt.x, pt.y);
 }
 
 void MyTreeCtrl::ShowMenu(wxTreeItemId id, const wxPoint& pt)
@@ -1217,6 +1338,8 @@ void MyTreeCtrl::ShowMenu(wxTreeItemId id, const wxPoint& pt)
 #if wxUSE_MENUS
     wxMenu menu(title);
     menu.Append(TreeTest_About, wxT("&About..."));
+    menu.AppendSeparator();
+    menu.Append(TreeTest_Highlight, wxT("&Highlight item"));
     menu.Append(TreeTest_Dump, wxT("&Dump"));
 
     PopupMenu(&menu, pt);
@@ -1277,6 +1400,6 @@ void MyTreeItemData::ShowInfo(wxTreeCtrl *tree)
                  Bool2String(tree->IsSelected(GetId())),
                  Bool2String(tree->IsExpanded(GetId())),
                  Bool2String(tree->IsBold(GetId())),
-                 tree->GetChildrenCount(GetId()),
-                 tree->GetChildrenCount(GetId(), false));
+                 unsigned(tree->GetChildrenCount(GetId())),
+                 unsigned(tree->GetChildrenCount(GetId(), false)));
 }