wxMessageBox off the main thread lost result code.

[wxWidgets.git] / samples / splitter / splitter.cpp

diff --git a/samples/splitter/splitter.cpp b/samples/splitter/splitter.cpp
index 8d069c279de7769aaa6fe084bc1afa8cb0641268..4177990a177326adf328cfe1f6092e430bebd358 100644 (file)
--- a/samples/splitter/splitter.cpp
+++ b/samples/splitter/splitter.cpp
@@ -4,9 +4,8 @@
 // Author:      Julian Smart
 // Modified by:
 // Created:     04/01/98
 // Author:      Julian Smart
 // Modified by:
 // Created:     04/01/98

-// RCS-ID:      $Id$

 // Copyright:   (c) Julian Smart
 // Copyright:   (c) Julian Smart

-// Licence:     wxWindows license
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
 /////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================


@@ -39,6 +38,10 @@
 #include "wx/splitter.h"
 #include "wx/dcmirror.h"
 
 #include "wx/splitter.h"
 #include "wx/dcmirror.h"
 

+#ifndef wxHAS_IMAGES_IN_RESOURCES
+    #include "../sample.xpm"
+#endif
+

 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------


@@ -46,14 +49,18 @@
 // ID for the menu commands
 enum
 {
 // ID for the menu commands
 enum
 {

-    SPLIT_QUIT,
+    SPLIT_QUIT = 1,

     SPLIT_HORIZONTAL,
     SPLIT_VERTICAL,
     SPLIT_UNSPLIT,
     SPLIT_LIVE,
     SPLIT_HORIZONTAL,
     SPLIT_VERTICAL,
     SPLIT_UNSPLIT,
     SPLIT_LIVE,

+    SPLIT_BORDER,
+    SPLIT_3DSASH,

     SPLIT_SETPOSITION,
     SPLIT_SETMINSIZE,
     SPLIT_SETPOSITION,
     SPLIT_SETMINSIZE,

-    SPLIT_SETGRAVITY
+    SPLIT_SETGRAVITY,
+    SPLIT_REPLACE,
+    SPLIT_INVISIBLE

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


@@ -67,38 +74,49 @@ public:
 
     virtual bool OnInit();
 
 
     virtual bool OnInit();
 

-    DECLARE_NO_COPY_CLASS(MyApp)
+    wxDECLARE_NO_COPY_CLASS(MyApp);

 };
 
 class MyFrame: public wxFrame
 {
 public:
     MyFrame();
 };
 
 class MyFrame: public wxFrame
 {
 public:
     MyFrame();

-    virtual ~MyFrame(){};
+    virtual ~MyFrame();

 
 

-    // Menu commands
-    void SplitHorizontal(wxCommandEvent& event);
-    void SplitVertical(wxCommandEvent& event);
-    void Unsplit(wxCommandEvent& event);
-    void ToggleLive(wxCommandEvent& event);
-    void SetPosition(wxCommandEvent& event);
-    void SetMinSize(wxCommandEvent& event);
-    void SetGravity(wxCommandEvent& event);
+    void ToggleFlag(int flag, bool enable);

 
 

-    void Quit(wxCommandEvent& event);
+    // Menu commands
+    void OnSplitHorizontal(wxCommandEvent& event);
+    void OnSplitVertical(wxCommandEvent& event);
+    void OnUnsplit(wxCommandEvent& event);
+    void OnToggleLive(wxCommandEvent& event)
+                  { ToggleFlag(wxSP_LIVE_UPDATE, event.IsChecked()); }
+    void OnToggleBorder(wxCommandEvent& event)
+                  { ToggleFlag(wxSP_BORDER, event.IsChecked()); }
+    void OnToggle3DSash(wxCommandEvent& event)
+                  { ToggleFlag(wxSP_3DSASH, event.IsChecked()); }
+    void OnSetPosition(wxCommandEvent& event);
+    void OnSetMinSize(wxCommandEvent& event);
+    void OnSetGravity(wxCommandEvent& event);
+    void OnReplace(wxCommandEvent &event);
+    void OnToggleInvisible(wxCommandEvent &event);
+
+    void OnQuit(wxCommandEvent& event);

 
     // Menu command update functions
 
     // Menu command update functions

-    void UpdateUIHorizontal(wxUpdateUIEvent& event);
-    void UpdateUIVertical(wxUpdateUIEvent& event);
-    void UpdateUIUnsplit(wxUpdateUIEvent& event);
+    void OnUpdateUIHorizontal(wxUpdateUIEvent& event);
+    void OnUpdateUIVertical(wxUpdateUIEvent& event);
+    void OnUpdateUIUnsplit(wxUpdateUIEvent& event);
+    void OnUpdateUIInvisible(wxUpdateUIEvent& event);

 
 private:
 
 private:

-    wxScrolledWindow *m_left, *m_right;
+    wxWindow *m_left, *m_right;

 
     wxSplitterWindow* m_splitter;
 
     wxSplitterWindow* m_splitter;

+    wxWindow *m_replacewindow;

 
     DECLARE_EVENT_TABLE()
 
     DECLARE_EVENT_TABLE()

-    DECLARE_NO_COPY_CLASS(MyFrame)
+    wxDECLARE_NO_COPY_CLASS(MyFrame);

 };
 
 class MySplitterWindow : public wxSplitterWindow
 };
 
 class MySplitterWindow : public wxSplitterWindow


@@ -116,7 +134,7 @@ private:
     wxFrame *m_frame;
 
     DECLARE_EVENT_TABLE()
     wxFrame *m_frame;
 
     DECLARE_EVENT_TABLE()

-    DECLARE_NO_COPY_CLASS(MySplitterWindow)
+    wxDECLARE_NO_COPY_CLASS(MySplitterWindow);

 };
 
 class MyCanvas: public wxScrolledWindow
 };
 
 class MyCanvas: public wxScrolledWindow


@@ -130,7 +148,7 @@ public:
 private:
     bool m_mirror;
 
 private:
     bool m_mirror;
 

-    DECLARE_NO_COPY_CLASS(MyCanvas)
+    wxDECLARE_NO_COPY_CLASS(MyCanvas);

 };
 
 // ============================================================================
 };
 
 // ============================================================================


@@ -145,6 +163,9 @@ IMPLEMENT_APP(MyApp)
 
 bool MyApp::OnInit()
 {
 
 bool MyApp::OnInit()
 {

+    if ( !wxApp::OnInit() )
+        return false;
+

     // create and show the main frame
     MyFrame* frame = new MyFrame;
 
     // create and show the main frame
     MyFrame* frame = new MyFrame;
 


@@ -158,27 +179,34 @@ bool MyApp::OnInit()
 // ----------------------------------------------------------------------------
 
 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 // ----------------------------------------------------------------------------
 
 BEGIN_EVENT_TABLE(MyFrame, wxFrame)

-    EVT_MENU(SPLIT_VERTICAL, MyFrame::SplitVertical)
-    EVT_MENU(SPLIT_HORIZONTAL, MyFrame::SplitHorizontal)
-    EVT_MENU(SPLIT_UNSPLIT, MyFrame::Unsplit)
-    EVT_MENU(SPLIT_LIVE, MyFrame::ToggleLive)
-    EVT_MENU(SPLIT_SETPOSITION, MyFrame::SetPosition)
-    EVT_MENU(SPLIT_SETMINSIZE, MyFrame::SetMinSize)
-    EVT_MENU(SPLIT_SETGRAVITY, MyFrame::SetGravity)
-
-    EVT_MENU(SPLIT_QUIT, MyFrame::Quit)
-
-    EVT_UPDATE_UI(SPLIT_VERTICAL, MyFrame::UpdateUIVertical)
-    EVT_UPDATE_UI(SPLIT_HORIZONTAL, MyFrame::UpdateUIHorizontal)
-    EVT_UPDATE_UI(SPLIT_UNSPLIT, MyFrame::UpdateUIUnsplit)
+    EVT_MENU(SPLIT_VERTICAL, MyFrame::OnSplitVertical)
+    EVT_MENU(SPLIT_HORIZONTAL, MyFrame::OnSplitHorizontal)
+    EVT_MENU(SPLIT_UNSPLIT, MyFrame::OnUnsplit)
+    EVT_MENU(SPLIT_LIVE, MyFrame::OnToggleLive)
+    EVT_MENU(SPLIT_BORDER, MyFrame::OnToggleBorder)
+    EVT_MENU(SPLIT_3DSASH, MyFrame::OnToggle3DSash)
+    EVT_MENU(SPLIT_SETPOSITION, MyFrame::OnSetPosition)
+    EVT_MENU(SPLIT_SETMINSIZE, MyFrame::OnSetMinSize)
+    EVT_MENU(SPLIT_SETGRAVITY, MyFrame::OnSetGravity)
+    EVT_MENU(SPLIT_REPLACE, MyFrame::OnReplace)
+    EVT_MENU(SPLIT_INVISIBLE, MyFrame::OnToggleInvisible)
+
+    EVT_MENU(SPLIT_QUIT, MyFrame::OnQuit)
+
+    EVT_UPDATE_UI(SPLIT_VERTICAL, MyFrame::OnUpdateUIVertical)
+    EVT_UPDATE_UI(SPLIT_HORIZONTAL, MyFrame::OnUpdateUIHorizontal)
+    EVT_UPDATE_UI(SPLIT_UNSPLIT, MyFrame::OnUpdateUIUnsplit)
+    EVT_UPDATE_UI(SPLIT_INVISIBLE, MyFrame::OnUpdateUIInvisible)

 END_EVENT_TABLE()
 
 // My frame constructor
 MyFrame::MyFrame()
 END_EVENT_TABLE()
 
 // My frame constructor
 MyFrame::MyFrame()

-       : wxFrame(NULL, wxID_ANY, _T("wxSplitterWindow sample"),
+       : wxFrame(NULL, wxID_ANY, wxT("wxSplitterWindow sample"),

                  wxDefaultPosition, wxSize(420, 300),
                  wxDEFAULT_FRAME_STYLE | wxNO_FULL_REPAINT_ON_RESIZE)
 {
                  wxDefaultPosition, wxSize(420, 300),
                  wxDEFAULT_FRAME_STYLE | wxNO_FULL_REPAINT_ON_RESIZE)
 {

+    SetIcon(wxICON(sample));
+

 #if wxUSE_STATUSBAR
     CreateStatusBar(2);
 #endif // wxUSE_STATUSBAR
 #if wxUSE_STATUSBAR
     CreateStatusBar(2);
 #endif // wxUSE_STATUSBAR


@@ -186,54 +214,74 @@ MyFrame::MyFrame()
     // Make a menubar
     wxMenu *splitMenu = new wxMenu;
     splitMenu->Append(SPLIT_VERTICAL,
     // Make a menubar
     wxMenu *splitMenu = new wxMenu;
     splitMenu->Append(SPLIT_VERTICAL,

-                      _T("Split &Vertically\tCtrl-V"),
-                      _T("Split vertically"));
+                      wxT("Split &Vertically\tCtrl-V"),
+                      wxT("Split vertically"));

     splitMenu->Append(SPLIT_HORIZONTAL,
     splitMenu->Append(SPLIT_HORIZONTAL,

-                      _T("Split &Horizontally\tCtrl-H"),
-                      _T("Split horizontally"));
+                      wxT("Split &Horizontally\tCtrl-H"),
+                      wxT("Split horizontally"));

     splitMenu->Append(SPLIT_UNSPLIT,
     splitMenu->Append(SPLIT_UNSPLIT,

-                      _T("&Unsplit\tCtrl-U"),
-                      _T("Unsplit"));
+                      wxT("&Unsplit\tCtrl-U"),
+                      wxT("Unsplit"));
+    splitMenu->AppendCheckItem(SPLIT_INVISIBLE,
+                      wxT("Toggle sash &invisibility\tCtrl-I"),
+                      wxT("Toggle sash invisibility"));

     splitMenu->AppendSeparator();
 
     splitMenu->AppendCheckItem(SPLIT_LIVE,
     splitMenu->AppendSeparator();
 
     splitMenu->AppendCheckItem(SPLIT_LIVE,

-                               _T("&Live update\tCtrl-L"),
-                               _T("Toggle live update mode"));
+                               wxT("&Live update\tCtrl-L"),
+                               wxT("Toggle live update mode"));
+    splitMenu->AppendCheckItem(SPLIT_BORDER,
+                               wxT("3D &Border"),
+                               wxT("Toggle wxSP_BORDER flag"));
+    splitMenu->Check(SPLIT_BORDER, true);
+    splitMenu->AppendCheckItem(SPLIT_3DSASH,
+                               wxT("&3D Sash"),
+                               wxT("Toggle wxSP_3DSASH flag"));
+    splitMenu->Check(SPLIT_3DSASH, true);

     splitMenu->Append(SPLIT_SETPOSITION,
     splitMenu->Append(SPLIT_SETPOSITION,

-                      _T("Set splitter &position\tCtrl-P"),
-                      _T("Set the splitter position"));
+                      wxT("Set splitter &position\tCtrl-P"),
+                      wxT("Set the splitter position"));

     splitMenu->Append(SPLIT_SETMINSIZE,
     splitMenu->Append(SPLIT_SETMINSIZE,

-                      _T("Set &min size\tCtrl-M"),
-                      _T("Set minimum pane size"));
+                      wxT("Set &min size\tCtrl-M"),
+                      wxT("Set minimum pane size"));

     splitMenu->Append(SPLIT_SETGRAVITY,
     splitMenu->Append(SPLIT_SETGRAVITY,

-                      _T("Set &gravity\tCtrl-G"),
-                      _T("Set gravity of sash"));
+                      wxT("Set &gravity\tCtrl-G"),
+                      wxT("Set gravity of sash"));
+    splitMenu->AppendSeparator();
+
+    splitMenu->Append(SPLIT_REPLACE,
+                      wxT("&Replace right window"),
+                      wxT("Replace right window"));

     splitMenu->AppendSeparator();
 
     splitMenu->AppendSeparator();
 

-    splitMenu->Append(SPLIT_QUIT, _T("E&xit\tAlt-X"), _T("Exit"));
+    splitMenu->Append(SPLIT_QUIT, wxT("E&xit\tAlt-X"), wxT("Exit"));

 
     wxMenuBar *menuBar = new wxMenuBar;
 
     wxMenuBar *menuBar = new wxMenuBar;

-    menuBar->Append(splitMenu, _T("&Splitter"));
+    menuBar->Append(splitMenu, wxT("&Splitter"));

 
     SetMenuBar(menuBar);
 
     menuBar->Check(SPLIT_LIVE, true);
     m_splitter = new MySplitterWindow(this);
 
     SetMenuBar(menuBar);
 
     menuBar->Check(SPLIT_LIVE, true);
     m_splitter = new MySplitterWindow(this);

-    
+
+    // If you use non-zero gravity you must initialize the splitter with its
+    // correct initial size, otherwise it will change the sash position by a
+    // huge amount when it's resized from its initial default size to its real
+    // size when the frame lays it out. This wouldn't be necessary if default
+    // zero gravity were used (although it would do no harm neither).
+    m_splitter->SetSize(GetClientSize());

     m_splitter->SetSashGravity(1.0);
 
 #if 1
     m_left = new MyCanvas(m_splitter, true);
     m_left->SetBackgroundColour(*wxRED);
     m_splitter->SetSashGravity(1.0);
 
 #if 1
     m_left = new MyCanvas(m_splitter, true);
     m_left->SetBackgroundColour(*wxRED);

-    m_left->SetScrollbars(20, 20, 5, 5);

     m_left->SetCursor(wxCursor(wxCURSOR_MAGNIFIER));
 
     m_right = new MyCanvas(m_splitter, false);
     m_right->SetBackgroundColour(*wxCYAN);
     m_left->SetCursor(wxCursor(wxCURSOR_MAGNIFIER));
 
     m_right = new MyCanvas(m_splitter, false);
     m_right->SetBackgroundColour(*wxCYAN);

-    m_right->SetScrollbars(20, 20, 5, 5);

 #else // for testing kbd navigation inside the splitter
 #else // for testing kbd navigation inside the splitter

-    m_left = new wxTextCtrl(m_splitter, wxID_ANY, _T("first text"));
-    m_right = new wxTextCtrl(m_splitter, wxID_ANY, _T("second text"));
+    m_left = new wxTextCtrl(m_splitter, wxID_ANY, wxT("first text"));
+    m_right = new wxTextCtrl(m_splitter, wxID_ANY, wxT("second text"));

 #endif
 
     // you can also do this to start with a single window
 #endif
 
     // you can also do this to start with a single window


@@ -246,88 +294,108 @@ MyFrame::MyFrame()
 #endif
 
 #if wxUSE_STATUSBAR
 #endif
 
 #if wxUSE_STATUSBAR

-    SetStatusText(_T("Min pane size = 0"), 1);
+    SetStatusText(wxT("Min pane size = 0"), 1);

 #endif // wxUSE_STATUSBAR
 #endif // wxUSE_STATUSBAR

+
+    m_replacewindow = NULL;
+}
+
+MyFrame::~MyFrame()
+{
+    if (m_replacewindow) {
+        m_replacewindow->Destroy();
+    }

 }
 
 // menu command handlers
 
 }
 
 // menu command handlers
 

-void MyFrame::Quit(wxCommandEvent& WXUNUSED(event) )
+void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event) )

 {
     Close(true);
 }
 
 {
     Close(true);
 }
 

-void MyFrame::SplitHorizontal(wxCommandEvent& WXUNUSED(event) )
+void MyFrame::OnSplitHorizontal(wxCommandEvent& WXUNUSED(event) )

 {
     if ( m_splitter->IsSplit() )
         m_splitter->Unsplit();
     m_left->Show(true);
     m_right->Show(true);
     m_splitter->SplitHorizontally( m_left, m_right );
 {
     if ( m_splitter->IsSplit() )
         m_splitter->Unsplit();
     m_left->Show(true);
     m_right->Show(true);
     m_splitter->SplitHorizontally( m_left, m_right );

+    m_replacewindow = NULL;

 
 #if wxUSE_STATUSBAR
 
 #if wxUSE_STATUSBAR

-    SetStatusText(_T("Splitter split horizontally"), 1);
+    SetStatusText(wxT("Splitter split horizontally"), 1);

 #endif // wxUSE_STATUSBAR
 }
 
 #endif // wxUSE_STATUSBAR
 }
 

-void MyFrame::SplitVertical(wxCommandEvent& WXUNUSED(event) )
+void MyFrame::OnSplitVertical(wxCommandEvent& WXUNUSED(event) )

 {
     if ( m_splitter->IsSplit() )
         m_splitter->Unsplit();
     m_left->Show(true);
     m_right->Show(true);
     m_splitter->SplitVertically( m_left, m_right );
 {
     if ( m_splitter->IsSplit() )
         m_splitter->Unsplit();
     m_left->Show(true);
     m_right->Show(true);
     m_splitter->SplitVertically( m_left, m_right );

+    m_replacewindow = NULL;

 
 #if wxUSE_STATUSBAR
 
 #if wxUSE_STATUSBAR

-    SetStatusText(_T("Splitter split vertically"), 1);
+    SetStatusText(wxT("Splitter split vertically"), 1);

 #endif // wxUSE_STATUSBAR
 }
 
 #endif // wxUSE_STATUSBAR
 }
 

-void MyFrame::Unsplit(wxCommandEvent& WXUNUSED(event) )
+void MyFrame::OnUnsplit(wxCommandEvent& WXUNUSED(event) )

 {
     if ( m_splitter->IsSplit() )
         m_splitter->Unsplit();
 #if wxUSE_STATUSBAR
 {
     if ( m_splitter->IsSplit() )
         m_splitter->Unsplit();
 #if wxUSE_STATUSBAR

-    SetStatusText(_T("No splitter"));
+    SetStatusText(wxT("No splitter"));

 #endif // wxUSE_STATUSBAR
 }
 
 #endif // wxUSE_STATUSBAR
 }
 

-void MyFrame::ToggleLive(wxCommandEvent& event )
+void MyFrame::ToggleFlag(int flag, bool enable)

 {
     long style = m_splitter->GetWindowStyleFlag();
 {
     long style = m_splitter->GetWindowStyleFlag();

-    if ( event.IsChecked() )
-        style |= wxSP_LIVE_UPDATE;
+    if ( enable )
+        style |= flag;

     else
     else

-        style &= ~wxSP_LIVE_UPDATE;
+        style &= ~flag;

 
     m_splitter->SetWindowStyleFlag(style);
 
     m_splitter->SetWindowStyleFlag(style);

+
+    // we need to move sash to redraw it
+    int pos = m_splitter->GetSashPosition();
+    m_splitter->SetSashPosition(pos + 1);
+    m_splitter->SetSashPosition(pos);

 }
 
 }
 

-void MyFrame::SetPosition(wxCommandEvent& WXUNUSED(event) )
+void MyFrame::OnSetPosition(wxCommandEvent& WXUNUSED(event) )

 {
     wxString str;
     str.Printf( wxT("%d"), m_splitter->GetSashPosition());
 {
     wxString str;
     str.Printf( wxT("%d"), m_splitter->GetSashPosition());

-    str = wxGetTextFromUser(_T("Enter splitter position:"), _T(""), str, this);
+#if wxUSE_TEXTDLG
+    str = wxGetTextFromUser(wxT("Enter splitter position:"), wxT(""), str, this);
+#endif

     if ( str.empty() )
         return;
 
     long pos;
     if ( !str.ToLong(&pos) )
     {
     if ( str.empty() )
         return;
 
     long pos;
     if ( !str.ToLong(&pos) )
     {

-        wxLogError(_T("The splitter position should be an integer."));
+        wxLogError(wxT("The splitter position should be an integer."));

         return;
     }
 
     m_splitter->SetSashPosition(pos);
 
         return;
     }
 
     m_splitter->SetSashPosition(pos);
 

-    wxLogStatus(this, _T("Splitter position set to %ld"), pos);
+    wxLogStatus(this, wxT("Splitter position set to %ld"), pos);

 }
 
 }
 

-void MyFrame::SetMinSize(wxCommandEvent& WXUNUSED(event) )
+void MyFrame::OnSetMinSize(wxCommandEvent& WXUNUSED(event) )

 {
     wxString str;
     str.Printf( wxT("%d"), m_splitter->GetMinimumPaneSize());
 {
     wxString str;
     str.Printf( wxT("%d"), m_splitter->GetMinimumPaneSize());

-    str = wxGetTextFromUser(_T("Enter minimal size for panes:"), _T(""), str, this);
+#if wxUSE_TEXTDLG
+    str = wxGetTextFromUser(wxT("Enter minimal size for panes:"), wxT(""), str, this);
+#endif

     if ( str.empty() )
         return;
 
     if ( str.empty() )
         return;
 


@@ -338,11 +406,14 @@ void MyFrame::SetMinSize(wxCommandEvent& WXUNUSED(event) )
     SetStatusText(str, 1);
 #endif // wxUSE_STATUSBAR
 }
     SetStatusText(str, 1);
 #endif // wxUSE_STATUSBAR
 }

-void MyFrame::SetGravity(wxCommandEvent& WXUNUSED(event) )
+
+void MyFrame::OnSetGravity(wxCommandEvent& WXUNUSED(event) )

 {
     wxString str;
     str.Printf( wxT("%g"), m_splitter->GetSashGravity());
 {
     wxString str;
     str.Printf( wxT("%g"), m_splitter->GetSashGravity());

-    str = wxGetTextFromUser(_T("Enter sash gravity (0,1):"), _T(""), str, this);
+#if wxUSE_TEXTDLG
+    str = wxGetTextFromUser(wxT("Enter sash gravity (0,1):"), wxT(""), str, this);
+#endif

     if ( str.empty() )
         return;
 
     if ( str.empty() )
         return;
 


@@ -354,23 +425,50 @@ void MyFrame::SetGravity(wxCommandEvent& WXUNUSED(event) )
 #endif // wxUSE_STATUSBAR
 }
 
 #endif // wxUSE_STATUSBAR
 }
 

+void MyFrame::OnReplace(wxCommandEvent& WXUNUSED(event) )
+{
+    if (m_replacewindow == NULL) {
+        m_replacewindow = m_splitter->GetWindow2();
+        m_splitter->ReplaceWindow(m_replacewindow, new wxPanel(m_splitter, wxID_ANY));
+        m_replacewindow->Hide();
+    } else {
+        wxWindow *empty = m_splitter->GetWindow2();
+        wxASSERT(empty != m_replacewindow);
+        m_splitter->ReplaceWindow(empty, m_replacewindow);
+        m_replacewindow->Show();
+        m_replacewindow = NULL;
+        empty->Destroy();
+    }
+}
+
+void MyFrame::OnToggleInvisible(wxCommandEvent& WXUNUSED(event) )
+{
+    m_splitter->SetSashInvisible(!m_splitter->IsSashInvisible());
+    m_splitter->SizeWindows();
+}
+

 // Update UI handlers
 
 // Update UI handlers
 

-void MyFrame::UpdateUIHorizontal(wxUpdateUIEvent& event)
+void MyFrame::OnUpdateUIHorizontal(wxUpdateUIEvent& event)

 {
     event.Enable( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_HORIZONTAL) );
 }
 
 {
     event.Enable( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_HORIZONTAL) );
 }
 

-void MyFrame::UpdateUIVertical(wxUpdateUIEvent& event)
+void MyFrame::OnUpdateUIVertical(wxUpdateUIEvent& event)

 {
     event.Enable( ( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_VERTICAL) ) );
 }
 
 {
     event.Enable( ( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_VERTICAL) ) );
 }
 

-void MyFrame::UpdateUIUnsplit(wxUpdateUIEvent& event)
+void MyFrame::OnUpdateUIUnsplit(wxUpdateUIEvent& event)

 {
     event.Enable( m_splitter->IsSplit() );
 }
 
 {
     event.Enable( m_splitter->IsSplit() );
 }
 

+void MyFrame::OnUpdateUIInvisible(wxUpdateUIEvent& event)
+{
+    event.Check( m_splitter->IsSashInvisible() );
+}
+

 // ----------------------------------------------------------------------------
 // MySplitterWindow
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // MySplitterWindow
 // ----------------------------------------------------------------------------


@@ -395,7 +493,7 @@ MySplitterWindow::MySplitterWindow(wxFrame *parent)
 
 void MySplitterWindow::OnPositionChanged(wxSplitterEvent& event)
 {
 
 void MySplitterWindow::OnPositionChanged(wxSplitterEvent& event)
 {

-    wxLogStatus(m_frame, _T("Position has changed, now = %d (or %d)"),
+    wxLogStatus(m_frame, wxT("Position has changed, now = %d (or %d)"),

                 event.GetSashPosition(), GetSashPosition());
 
     event.Skip();
                 event.GetSashPosition(), GetSashPosition());
 
     event.Skip();


@@ -403,7 +501,7 @@ void MySplitterWindow::OnPositionChanged(wxSplitterEvent& event)
 
 void MySplitterWindow::OnPositionChanging(wxSplitterEvent& event)
 {
 
 void MySplitterWindow::OnPositionChanging(wxSplitterEvent& event)
 {

-    wxLogStatus(m_frame, _T("Position is changing, now = %d (or %d)"),
+    wxLogStatus(m_frame, wxT("Position is changing, now = %d (or %d)"),

                 event.GetSashPosition(), GetSashPosition());
 
     event.Skip();
                 event.GetSashPosition(), GetSashPosition());
 
     event.Skip();


@@ -412,7 +510,7 @@ void MySplitterWindow::OnPositionChanging(wxSplitterEvent& event)
 void MySplitterWindow::OnDClick(wxSplitterEvent& event)
 {
 #if wxUSE_STATUSBAR
 void MySplitterWindow::OnDClick(wxSplitterEvent& event)
 {
 #if wxUSE_STATUSBAR

-    m_frame->SetStatusText(_T("Splitter double clicked"), 1);
+    m_frame->SetStatusText(wxT("Splitter double clicked"), 1);

 #endif // wxUSE_STATUSBAR
 
     event.Skip();
 #endif // wxUSE_STATUSBAR
 
     event.Skip();


@@ -421,7 +519,7 @@ void MySplitterWindow::OnDClick(wxSplitterEvent& event)
 void MySplitterWindow::OnUnsplitEvent(wxSplitterEvent& event)
 {
 #if wxUSE_STATUSBAR
 void MySplitterWindow::OnUnsplitEvent(wxSplitterEvent& event)
 {
 #if wxUSE_STATUSBAR

-    m_frame->SetStatusText(_T("Splitter unsplit"), 1);
+    m_frame->SetStatusText(wxT("Splitter unsplit"), 1);

 #endif // wxUSE_STATUSBAR
 
     event.Skip();
 #endif // wxUSE_STATUSBAR
 
     event.Skip();


@@ -436,6 +534,7 @@ MyCanvas::MyCanvas(wxWindow* parent, bool mirror)
                            wxHSCROLL | wxVSCROLL | wxNO_FULL_REPAINT_ON_RESIZE)
 {
     m_mirror = mirror;
                            wxHSCROLL | wxVSCROLL | wxNO_FULL_REPAINT_ON_RESIZE)
 {
     m_mirror = mirror;

+    SetScrollbars(20, 20, 5, 5);

 }
 
 void MyCanvas::OnDraw(wxDC& dcOrig)
 }
 
 void MyCanvas::OnDraw(wxDC& dcOrig)


@@ -445,8 +544,8 @@ void MyCanvas::OnDraw(wxDC& dcOrig)
     dc.SetPen(*wxBLACK_PEN);
     dc.DrawLine(0, 0, 100, 200);
 
     dc.SetPen(*wxBLACK_PEN);
     dc.DrawLine(0, 0, 100, 200);
 

-    dc.SetBackgroundMode(wxTRANSPARENT);
-    dc.DrawText(_T("Testing"), 50, 50);
+    dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
+    dc.DrawText(wxT("Testing"), 50, 50);

 
     dc.SetPen(*wxRED_PEN);
     dc.SetBrush(*wxGREEN_BRUSH);
 
     dc.SetPen(*wxRED_PEN);
     dc.SetBrush(*wxGREEN_BRUSH);