Remove empty PalmOS-related directories.

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

diff --git a/samples/splitter/splitter.cpp b/samples/splitter/splitter.cpp
index 2c956b311ec35a0404898f0ff0f94e260999f87f..0ed8ae07f2f506d2a74b473545cc7fdde4d8efbd 100644 (file)
--- a/samples/splitter/splitter.cpp
+++ b/samples/splitter/splitter.cpp
@@ -5,286 +5,533 @@
 // Modified by:
 // Created:     04/01/98
 // RCS-ID:      $Id$
 // Modified by:
 // Created:     04/01/98
 // RCS-ID:      $Id$

-// Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:     wxWindows license
+// Copyright:   (c) Julian Smart
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+

 // For compilers that support precompilation, includes "wx/wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
 // For compilers that support precompilation, includes "wx/wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__

-#pragma hdrstop
+    #pragma hdrstop

 #endif
 
 #ifndef WX_PRECOMP
 #endif
 
 #ifndef WX_PRECOMP

-#include "wx/wx.h"
+    #include "wx/log.h"
+
+    #include "wx/app.h"
+    #include "wx/frame.h"
+
+    #include "wx/scrolwin.h"
+    #include "wx/menu.h"
+
+    #include "wx/textdlg.h"       // for wxGetTextFromUser

 #endif
 
 #include "wx/splitter.h"
 #endif
 
 #include "wx/splitter.h"

+#include "wx/dcmirror.h"

 
 

-class MyApp;
-class MyFrame;
-class MyCanvas;
+#ifndef __WXMSW__
+    #include "../sample.xpm"
+#endif

 
 

-class MyApp: public wxApp
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
+
+// ID for the menu commands
+enum

 {
 {

-public:
-  bool OnInit();
+    SPLIT_QUIT = 1,
+    SPLIT_HORIZONTAL,
+    SPLIT_VERTICAL,
+    SPLIT_UNSPLIT,
+    SPLIT_LIVE,
+    SPLIT_BORDER,
+    SPLIT_3DSASH,
+    SPLIT_SETPOSITION,
+    SPLIT_SETMINSIZE,
+    SPLIT_SETGRAVITY,
+    SPLIT_REPLACE

 };
 
 };
 

-class MySplitterWindow : public wxSplitterWindow
+// ----------------------------------------------------------------------------
+// our classes
+// ----------------------------------------------------------------------------
+
+class MyApp: public wxApp

 {
 public:
 {
 public:

-  MySplitterWindow(wxFrame *parent, wxWindowID id)
-    : wxSplitterWindow(parent, id, wxDefaultPosition, wxDefaultSize,
-                       wxSP_3D | wxSP_LIVE_UPDATE | wxCLIP_CHILDREN)
-  {
-    m_frame = parent;
-  }
-
-  virtual bool OnSashPositionChange(int newSashPosition)
-  {
-    if ( !wxSplitterWindow::OnSashPositionChange(newSashPosition) )
-      return FALSE;
+    MyApp() { }

 
 

-    wxString str;
-    str.Printf( _T("Sash position = %d"), newSashPosition);
-    m_frame->SetStatusText(str);
+    virtual bool OnInit();

 
 

-    return TRUE;
-  }
-
-private:
-  wxFrame *m_frame;
+    wxDECLARE_NO_COPY_CLASS(MyApp);

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

-  MyFrame(wxFrame* frame, const wxString& title, const wxPoint& pos, const wxSize& size);
-  virtual ~MyFrame();
+    MyFrame();
+    virtual ~MyFrame();
+
+    void ToggleFlag(int flag, bool enable);
+
+    // 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 OnQuit(wxCommandEvent& event);
+
+    // Menu command update functions
+    void OnUpdateUIHorizontal(wxUpdateUIEvent& event);
+    void OnUpdateUIVertical(wxUpdateUIEvent& event);
+    void OnUpdateUIUnsplit(wxUpdateUIEvent& event);

 
 

-  // Menu commands
-  void SplitHorizontal(wxCommandEvent& event);
-  void SplitVertical(wxCommandEvent& event);
-  void Unsplit(wxCommandEvent& event);
-  void SetMinSize(wxCommandEvent& event);
-  void Quit(wxCommandEvent& event);
+private:
+    wxScrolledWindow *m_left, *m_right;

 
 

-  // Menu command update functions
-  void UpdateUIHorizontal(wxUpdateUIEvent& event);
-  void UpdateUIVertical(wxUpdateUIEvent& event);
-  void UpdateUIUnsplit(wxUpdateUIEvent& event);
+    wxSplitterWindow* m_splitter;
+    wxWindow *m_replacewindow;

 
 

-private:
-  void UpdatePosition();
+    DECLARE_EVENT_TABLE()
+    wxDECLARE_NO_COPY_CLASS(MyFrame);
+};

 
 

-  wxScrolledWindow *m_left, *m_right;
+class MySplitterWindow : public wxSplitterWindow
+{
+public:
+    MySplitterWindow(wxFrame *parent);

 
 

-  MySplitterWindow* m_splitter;
+    // event handlers
+    void OnPositionChanged(wxSplitterEvent& event);
+    void OnPositionChanging(wxSplitterEvent& event);
+    void OnDClick(wxSplitterEvent& event);
+    void OnUnsplitEvent(wxSplitterEvent& event);

 
 

-  DECLARE_EVENT_TABLE()
+private:
+    wxFrame *m_frame;
+
+    DECLARE_EVENT_TABLE()
+    wxDECLARE_NO_COPY_CLASS(MySplitterWindow);

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

-    MyCanvas(wxWindow* parent, wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, const wxString& name = "");
-    virtual ~MyCanvas();
+    MyCanvas(wxWindow* parent, bool mirror);
+    virtual ~MyCanvas(){};

 
 

-  virtual void OnDraw(wxDC& dc);
+    virtual void OnDraw(wxDC& dc);

 
 

-DECLARE_EVENT_TABLE()
-};
-
-BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
-END_EVENT_TABLE()
+private:
+    bool m_mirror;

 
 

-// ID for the menu commands
-enum
-{
-  SPLIT_QUIT,
-  SPLIT_HORIZONTAL,
-  SPLIT_VERTICAL,
-  SPLIT_UNSPLIT,
-  SPLIT_SETMINSIZE
+    wxDECLARE_NO_COPY_CLASS(MyCanvas);

 };
 
 };
 

-// Window ids
-#define SPLITTER_WINDOW     100
-#define SPLITTER_FRAME      101
-#define CANVAS1             102
-#define CANVAS2             103
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// MyApp
+// ----------------------------------------------------------------------------

 
 IMPLEMENT_APP(MyApp)
 
 
 IMPLEMENT_APP(MyApp)
 

-bool MyApp::OnInit(void)
+bool MyApp::OnInit()

 {
 {

-  MyFrame* frame = new MyFrame((wxFrame *) NULL, "wxSplitterWindow Example",
-                               wxPoint(50, 50), wxSize(420, 300));
+    if ( !wxApp::OnInit() )
+        return false;

 
 

-  // Show the frame
-  frame->Show(TRUE);
+    // create and show the main frame
+    MyFrame* frame = new MyFrame;

 
 

-  SetTopWindow(frame);
+    frame->Show(true);

 
 

-  return TRUE;
+    return true;

 }
 
 }
 

+// ----------------------------------------------------------------------------
+// MyFrame
+// ----------------------------------------------------------------------------
+

 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_QUIT, MyFrame::Quit)
-  EVT_MENU(SPLIT_SETMINSIZE, MyFrame::SetMinSize)
-
-  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_QUIT, MyFrame::OnQuit)
+
+    EVT_UPDATE_UI(SPLIT_VERTICAL, MyFrame::OnUpdateUIVertical)
+    EVT_UPDATE_UI(SPLIT_HORIZONTAL, MyFrame::OnUpdateUIHorizontal)
+    EVT_UPDATE_UI(SPLIT_UNSPLIT, MyFrame::OnUpdateUIUnsplit)

 END_EVENT_TABLE()
 
 // My frame constructor
 END_EVENT_TABLE()
 
 // My frame constructor

-MyFrame::MyFrame(wxFrame* frame, const wxString& title,
-                 const wxPoint& pos, const wxSize& size)
-       : wxFrame(frame, SPLITTER_FRAME, title, pos, size,
+MyFrame::MyFrame()
+       : wxFrame(NULL, wxID_ANY, wxT("wxSplitterWindow sample"),
+                 wxDefaultPosition, wxSize(420, 300),

                  wxDEFAULT_FRAME_STYLE | wxNO_FULL_REPAINT_ON_RESIZE)
 {
                  wxDEFAULT_FRAME_STYLE | wxNO_FULL_REPAINT_ON_RESIZE)
 {

-  CreateStatusBar(2);
-
-  // Make a menubar
-  wxMenu *fileMenu = new wxMenu;
-  fileMenu->Append(SPLIT_VERTICAL, "Split &Vertically\tCtrl-V", "Split vertically");
-  fileMenu->Append(SPLIT_HORIZONTAL, "Split &Horizontally\tCtrl-H", "Split horizontally");
-  fileMenu->Append(SPLIT_UNSPLIT, "&Unsplit\tCtrl-U", "Unsplit");
-  fileMenu->AppendSeparator();
-  fileMenu->Append(SPLIT_SETMINSIZE, "Set &min size", "Set minimum pane size");
-  fileMenu->AppendSeparator();
-  fileMenu->Append(SPLIT_QUIT, "E&xit\tAlt-X", "Exit");
-
-  wxMenuBar *menuBar = new wxMenuBar;
-  menuBar->Append(fileMenu, "&File");
-
-  SetMenuBar(menuBar);
-
-  m_splitter = new MySplitterWindow(this, SPLITTER_WINDOW);
+    SetIcon(wxICON(sample));
+
+#if wxUSE_STATUSBAR
+    CreateStatusBar(2);
+#endif // wxUSE_STATUSBAR
+
+    // Make a menubar
+    wxMenu *splitMenu = new wxMenu;
+    splitMenu->Append(SPLIT_VERTICAL,
+                      wxT("Split &Vertically\tCtrl-V"),
+                      wxT("Split vertically"));
+    splitMenu->Append(SPLIT_HORIZONTAL,
+                      wxT("Split &Horizontally\tCtrl-H"),
+                      wxT("Split horizontally"));
+    splitMenu->Append(SPLIT_UNSPLIT,
+                      wxT("&Unsplit\tCtrl-U"),
+                      wxT("Unsplit"));
+    splitMenu->AppendSeparator();
+
+    splitMenu->AppendCheckItem(SPLIT_LIVE,
+                               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,
+                      wxT("Set splitter &position\tCtrl-P"),
+                      wxT("Set the splitter position"));
+    splitMenu->Append(SPLIT_SETMINSIZE,
+                      wxT("Set &min size\tCtrl-M"),
+                      wxT("Set minimum pane size"));
+    splitMenu->Append(SPLIT_SETGRAVITY,
+                      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->Append(SPLIT_QUIT, wxT("E&xit\tAlt-X"), wxT("Exit"));
+
+    wxMenuBar *menuBar = new wxMenuBar;
+    menuBar->Append(splitMenu, wxT("&Splitter"));
+
+    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
 
 #if 1

-  m_left = new MyCanvas(m_splitter, CANVAS1, wxPoint(0, 0), wxSize(400, 400), "Test1" );
-  m_left->SetBackgroundColour(*wxRED);
-  m_left->SetScrollbars(20, 20, 50, 50);
-  m_left->SetCursor(wxCursor(wxCURSOR_MAGNIFIER));
-
-  m_right = new MyCanvas(m_splitter, CANVAS2, wxPoint(0, 0), wxSize(400, 400), "Test2" );
-  m_right->SetBackgroundColour(*wxCYAN);
-  m_right->SetScrollbars(20, 20, 50, 50);
+    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_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, -1, "first text");
-  m_right = new wxTextCtrl(m_splitter, -1, "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
 
 #endif
 

-  // you can also do this to start with a single window
+    // you can also do this to start with a single window

 #if 0
 #if 0

-  m_right->Show(FALSE);
-  m_splitter->Initialize(m_left);
+    m_right->Show(false);
+    m_splitter->Initialize(m_left);

 #else
 #else

-  m_splitter->SplitVertically(m_left, m_right, 100);
+    // you can also try -100
+    m_splitter->SplitVertically(m_left, m_right, 100);

 #endif
 
 #endif
 

-  SetStatusText("Min pane size = 0", 1);
+#if wxUSE_STATUSBAR
+    SetStatusText(wxT("Min pane size = 0"), 1);
+#endif // wxUSE_STATUSBAR
+
+    m_replacewindow = NULL;

 }
 
 MyFrame::~MyFrame()
 {
 }
 
 MyFrame::~MyFrame()
 {

+    if (m_replacewindow) {
+        m_replacewindow->Destroy();
+    }
+}
+
+// menu command handlers
+
+void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event) )
+{
+    Close(true);

 }
 
 }
 

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

 {
 {

-  Close(TRUE);
+    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
+    SetStatusText(wxT("Splitter split horizontally"), 1);
+#endif // wxUSE_STATUSBAR

 }
 
 }
 

-void MyFrame::SplitHorizontal(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->SplitHorizontally( m_left, m_right );
-  UpdatePosition();
+    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
+    SetStatusText(wxT("Splitter split vertically"), 1);
+#endif // wxUSE_STATUSBAR

 }
 
 }
 

-void MyFrame::SplitVertical(wxCommandEvent& WXUNUSED(event) )
+void MyFrame::OnUnsplit(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 );
-  UpdatePosition();
+    if ( m_splitter->IsSplit() )
+        m_splitter->Unsplit();
+#if wxUSE_STATUSBAR
+    SetStatusText(wxT("No splitter"));
+#endif // wxUSE_STATUSBAR

 }
 
 }
 

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

 {
 {

-  if ( m_splitter->IsSplit() )
-    m_splitter->Unsplit();
-  SetStatusText("No splitter");
+    long style = m_splitter->GetWindowStyleFlag();
+    if ( enable )
+        style |= flag;
+    else
+        style &= ~flag;
+
+    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::SetMinSize(wxCommandEvent& WXUNUSED(event) )
+void MyFrame::OnSetPosition(wxCommandEvent& WXUNUSED(event) )

 {
 {

-  wxString str;
-  str.Printf( _T("%d"), m_splitter->GetMinimumPaneSize());
-  str = wxGetTextFromUser("Enter minimal size for panes:", "", str, this);
-  if ( str.IsEmpty() )
-    return;
-
-  int minsize = wxStrtol( str, (wxChar**)NULL, 10 );
-  m_splitter->SetMinimumPaneSize(minsize);
-  str.Printf( _T("Min pane size = %d"), minsize);
-  SetStatusText(str, 1);
+    wxString str;
+    str.Printf( wxT("%d"), m_splitter->GetSashPosition());
+#if wxUSE_TEXTDLG
+    str = wxGetTextFromUser(wxT("Enter splitter position:"), wxT(""), str, this);
+#endif
+    if ( str.empty() )
+        return;
+
+    long pos;
+    if ( !str.ToLong(&pos) )
+    {
+        wxLogError(wxT("The splitter position should be an integer."));
+        return;
+    }
+
+    m_splitter->SetSashPosition(pos);
+
+    wxLogStatus(this, wxT("Splitter position set to %ld"), pos);

 }
 
 }
 

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

 {
 {

-    bool foo = ( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_HORIZONTAL) );
-    if( !foo )
-  event.Enable( foo );
+    wxString str;
+    str.Printf( wxT("%d"), m_splitter->GetMinimumPaneSize());
+#if wxUSE_TEXTDLG
+    str = wxGetTextFromUser(wxT("Enter minimal size for panes:"), wxT(""), str, this);
+#endif
+    if ( str.empty() )
+        return;
+
+    int minsize = wxStrtol( str, (wxChar**)NULL, 10 );
+    m_splitter->SetMinimumPaneSize(minsize);
+#if wxUSE_STATUSBAR
+    str.Printf( wxT("Min pane size = %d"), minsize);
+    SetStatusText(str, 1);
+#endif // wxUSE_STATUSBAR

 }
 
 }
 

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

 {
 {

-  event.Enable( ( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_VERTICAL) ) );
+    wxString str;
+    str.Printf( wxT("%g"), m_splitter->GetSashGravity());
+#if wxUSE_TEXTDLG
+    str = wxGetTextFromUser(wxT("Enter sash gravity (0,1):"), wxT(""), str, this);
+#endif
+    if ( str.empty() )
+        return;
+
+    double gravity = wxStrtod( str, (wxChar**)NULL);
+    m_splitter->SetSashGravity(gravity);
+#if wxUSE_STATUSBAR
+    str.Printf( wxT("Gravity = %g"), gravity);
+    SetStatusText(str, 1);
+#endif // wxUSE_STATUSBAR

 }
 
 }
 

-void MyFrame::UpdateUIUnsplit(wxUpdateUIEvent& event)
+void MyFrame::OnReplace(wxCommandEvent& WXUNUSED(event) )

 {
 {

-  event.Enable( m_splitter->IsSplit() );
+    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::UpdatePosition()
+// Update UI handlers
+
+void MyFrame::OnUpdateUIHorizontal(wxUpdateUIEvent& event)

 {
 {

-  wxString str;
-  str.Printf( _("Sash position = %d"), m_splitter->GetSashPosition());
-  SetStatusText(str);
+    event.Enable( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_HORIZONTAL) );

 }
 
 }
 

-MyCanvas::MyCanvas(wxWindow* parent, wxWindowID id, const wxPoint& point, const wxSize& size, const wxString &name ) :
-    wxScrolledWindow(parent, id, point, size, 0, name )
+void MyFrame::OnUpdateUIVertical(wxUpdateUIEvent& event)

 {
 {

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

 }
 
 }
 

-MyCanvas::~MyCanvas()
+void MyFrame::OnUpdateUIUnsplit(wxUpdateUIEvent& event)

 {
 {

+    event.Enable( m_splitter->IsSplit() );

 }
 
 }
 

-void MyCanvas::OnDraw(wxDC& dc)
+// ----------------------------------------------------------------------------
+// MySplitterWindow
+// ----------------------------------------------------------------------------
+
+BEGIN_EVENT_TABLE(MySplitterWindow, wxSplitterWindow)
+    EVT_SPLITTER_SASH_POS_CHANGED(wxID_ANY, MySplitterWindow::OnPositionChanged)
+    EVT_SPLITTER_SASH_POS_CHANGING(wxID_ANY, MySplitterWindow::OnPositionChanging)
+
+    EVT_SPLITTER_DCLICK(wxID_ANY, MySplitterWindow::OnDClick)
+
+    EVT_SPLITTER_UNSPLIT(wxID_ANY, MySplitterWindow::OnUnsplitEvent)
+END_EVENT_TABLE()
+
+MySplitterWindow::MySplitterWindow(wxFrame *parent)
+                : wxSplitterWindow(parent, wxID_ANY,
+                                   wxDefaultPosition, wxDefaultSize,
+                                   wxSP_3D | wxSP_LIVE_UPDATE |
+                                   wxCLIP_CHILDREN /* | wxSP_NO_XP_THEME */ )

 {
 {

-  dc.SetPen(*wxBLACK_PEN);
-  dc.DrawLine(0, 0, 100, 100);
+    m_frame = parent;
+}

 
 

-  dc.SetBackgroundMode(wxTRANSPARENT);
-  dc.DrawText("Testing", 50, 50);
+void MySplitterWindow::OnPositionChanged(wxSplitterEvent& event)
+{
+    wxLogStatus(m_frame, wxT("Position has changed, now = %d (or %d)"),
+                event.GetSashPosition(), GetSashPosition());

 
 

-  dc.SetPen(*wxRED_PEN);
-  dc.SetBrush(*wxGREEN_BRUSH);
-  dc.DrawRectangle(120, 120, 100, 80);
+    event.Skip();

 }
 }

+
+void MySplitterWindow::OnPositionChanging(wxSplitterEvent& event)
+{
+    wxLogStatus(m_frame, wxT("Position is changing, now = %d (or %d)"),
+                event.GetSashPosition(), GetSashPosition());
+
+    event.Skip();
+}
+
+void MySplitterWindow::OnDClick(wxSplitterEvent& event)
+{
+#if wxUSE_STATUSBAR
+    m_frame->SetStatusText(wxT("Splitter double clicked"), 1);
+#endif // wxUSE_STATUSBAR
+
+    event.Skip();
+}
+
+void MySplitterWindow::OnUnsplitEvent(wxSplitterEvent& event)
+{
+#if wxUSE_STATUSBAR
+    m_frame->SetStatusText(wxT("Splitter unsplit"), 1);
+#endif // wxUSE_STATUSBAR
+
+    event.Skip();
+}
+
+// ----------------------------------------------------------------------------
+// MyCanvas
+// ----------------------------------------------------------------------------
+
+MyCanvas::MyCanvas(wxWindow* parent, bool mirror)
+        : wxScrolledWindow(parent, wxID_ANY, wxDefaultPosition, wxDefaultSize,
+                           wxHSCROLL | wxVSCROLL | wxNO_FULL_REPAINT_ON_RESIZE)
+{
+    m_mirror = mirror;
+}
+
+void MyCanvas::OnDraw(wxDC& dcOrig)
+{
+    wxMirrorDC dc(dcOrig, m_mirror);
+
+    dc.SetPen(*wxBLACK_PEN);
+    dc.DrawLine(0, 0, 100, 200);
+
+    dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
+    dc.DrawText(wxT("Testing"), 50, 50);
+
+    dc.SetPen(*wxRED_PEN);
+    dc.SetBrush(*wxGREEN_BRUSH);
+    dc.DrawRectangle(120, 120, 100, 80);
+}
+