]> git.saurik.com Git - wxWidgets.git/blobdiff - samples/controls/controls.cpp
More Motif stuff incl. beginnings of wxToolBar
[wxWidgets.git] / samples / controls / controls.cpp
index 399d1bee9c954a416ef54a4a5c974d7ef5e9d740..c08ec582d9d71a04d4257238bc722eb13edf5e89 100644 (file)
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        minimal.cpp
+// Name:        controls.cpp
 // Purpose:     Controls wxWindows sample
 // Author:      Robert Roebling
 // Modified by:
@@ -9,8 +9,7 @@
 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
-#pragma implementation "minimal.cpp"
-#pragma interface "minimal.cpp"
+#pragma implementation "controls.h"
 #endif
 
 // For compilers that support precompilation, includes "wx/wx.h".
@@ -25,6 +24,7 @@
 #endif
 
 #include "wx/notebook.h"
+#include "wx/imaglist.h"
 
 #ifdef __WXGTK__
 #include "mondrian.xpm"
@@ -45,6 +45,7 @@ class MyPanel: public wxPanel
   public:
  
     MyPanel(wxFrame *frame, int x, int y, int w, int h);
+    virtual ~MyPanel();
     
     void OnSize( wxSizeEvent& event );
     void OnListBox( wxCommandEvent &event );
@@ -55,11 +56,14 @@ class MyPanel: public wxPanel
     void OnComboButtons( wxCommandEvent &event );
     void OnRadio( wxCommandEvent &event );
     void OnRadioButtons( wxCommandEvent &event );
+    void OnSetFont( wxCommandEvent &event );
+    void OnPageChanged( wxNotebookEvent &event );
     
     wxListBox   *m_listbox;
     wxChoice    *m_choice;
     wxComboBox  *m_combo;
     wxRadioBox  *m_radio;
+    wxButton    *m_fontButton;
     
     wxTextCtrl  *m_text;
     wxNotebook  *m_notebook;    
@@ -99,7 +103,7 @@ const   int MINIMAL_ABOUT  = 102;
 bool MyApp::OnInit(void)
 {
   // Create the main frame window
-  MyFrame *frame = new MyFrame((wxFrame *) NULL, (char *) "Controls wxWindows App", 50, 50, 500, 420 );
+  MyFrame *frame = new MyFrame((wxFrame *) NULL, (char *) "Controls wxWindows App", 50, 50, 530, 420 );
   
   // Give it an icon
 #ifdef __WXMSW__
@@ -127,58 +131,85 @@ bool MyApp::OnInit(void)
 // MyPanel
 //----------------------------------------------------------------------
 
-const  int ID_NOTEBOOK          = 1000;
-
-const  int ID_LISTBOX           = 130;
-const  int ID_LISTBOX_SEL_NUM   = 131;
-const  int ID_LISTBOX_SEL_STR   = 132;
-const  int ID_LISTBOX_CLEAR     = 133;
-const  int ID_LISTBOX_APPEND    = 134;
-
-const  int ID_CHOICE            = 120;
-const  int ID_CHOICE_SEL_NUM    = 121;
-const  int ID_CHOICE_SEL_STR    = 122;
-const  int ID_CHOICE_CLEAR      = 123;
-const  int ID_CHOICE_APPEND     = 124;
-
-const  int ID_COMBO             = 140;
-const  int ID_COMBO_SEL_NUM     = 141;
-const  int ID_COMBO_SEL_STR     = 142;
-const  int ID_COMBO_CLEAR       = 143;
-const  int ID_COMBO_APPEND      = 144;
-
-const  int ID_TEXT              = 150;
-
-const  int ID_RADIOBOX          = 160;
-const  int ID_RADIOBOX_SEL_NUM  = 161;
-const  int ID_RADIOBOX_SEL_STR  = 162;
+const  ID_NOTEBOOK          = 1000;
+
+const  ID_LISTBOX           = 130;
+const  ID_LISTBOX_SEL_NUM   = 131;
+const  ID_LISTBOX_SEL_STR   = 132;
+const  ID_LISTBOX_CLEAR     = 133;
+const  ID_LISTBOX_APPEND    = 134;
+const  ID_LISTBOX_DELETE    = 135;
+const  ID_LISTBOX_FONT      = 136;
+const  ID_LISTBOX_ENABLE    = 137;
+
+const  ID_CHOICE            = 120;
+const  ID_CHOICE_SEL_NUM    = 121;
+const  ID_CHOICE_SEL_STR    = 122;
+const  ID_CHOICE_CLEAR      = 123;
+const  ID_CHOICE_APPEND     = 124;
+const  ID_CHOICE_DELETE     = 125;
+const  ID_CHOICE_FONT       = 126;
+const  ID_CHOICE_ENABLE     = 127;
+
+const  ID_COMBO             = 140;
+const  ID_COMBO_SEL_NUM     = 141;
+const  ID_COMBO_SEL_STR     = 142;
+const  ID_COMBO_CLEAR       = 143;
+const  ID_COMBO_APPEND      = 144;
+const  ID_COMBO_DELETE      = 145;
+const  ID_COMBO_FONT        = 146;
+const  ID_COMBO_ENABLE      = 147;
+
+const  ID_TEXT              = 150;
+
+const  ID_RADIOBOX          = 160;
+const  ID_RADIOBOX_SEL_NUM  = 161;
+const  ID_RADIOBOX_SEL_STR  = 162;
+const  ID_RADIOBOX_FONT     = 163;
+const  ID_RADIOBOX_ENABLE   = 164;
+
+const  ID_SET_FONT          = 170;
 
 BEGIN_EVENT_TABLE(MyPanel, wxPanel)
-  EVT_SIZE      (                       MyPanel::OnSize)
-  EVT_LISTBOX   (ID_LISTBOX,            MyPanel::OnListBox)
-  EVT_BUTTON    (ID_LISTBOX_SEL_NUM,    MyPanel::OnListBoxButtons)
-  EVT_BUTTON    (ID_LISTBOX_SEL_STR,    MyPanel::OnListBoxButtons)
-  EVT_BUTTON    (ID_LISTBOX_CLEAR,      MyPanel::OnListBoxButtons)
-  EVT_BUTTON    (ID_LISTBOX_APPEND,     MyPanel::OnListBoxButtons)
-  EVT_CHOICE    (ID_CHOICE,             MyPanel::OnChoice)
-  EVT_BUTTON    (ID_CHOICE_SEL_NUM,     MyPanel::OnChoiceButtons)
-  EVT_BUTTON    (ID_CHOICE_SEL_STR,     MyPanel::OnChoiceButtons)
-  EVT_BUTTON    (ID_CHOICE_CLEAR,       MyPanel::OnChoiceButtons)
-  EVT_BUTTON    (ID_CHOICE_APPEND,      MyPanel::OnChoiceButtons)
-  EVT_CHOICE    (ID_COMBO,              MyPanel::OnCombo)
-  EVT_BUTTON    (ID_COMBO_SEL_NUM,      MyPanel::OnComboButtons)
-  EVT_BUTTON    (ID_COMBO_SEL_STR,      MyPanel::OnComboButtons)
-  EVT_BUTTON    (ID_COMBO_CLEAR,        MyPanel::OnComboButtons)
-  EVT_BUTTON    (ID_COMBO_APPEND,       MyPanel::OnComboButtons)
-  EVT_RADIOBOX  (ID_RADIOBOX,           MyPanel::OnRadio)
-  EVT_BUTTON    (ID_RADIOBOX_SEL_NUM,   MyPanel::OnRadioButtons)
-  EVT_BUTTON    (ID_RADIOBOX_SEL_STR,   MyPanel::OnRadioButtons)
+  EVT_SIZE      (                         MyPanel::OnSize)
+  EVT_NOTEBOOK_PAGE_CHANGED(ID_NOTEBOOK,  MyPanel::OnPageChanged)  
+  EVT_LISTBOX   (ID_LISTBOX,              MyPanel::OnListBox)
+  EVT_BUTTON    (ID_LISTBOX_SEL_NUM,      MyPanel::OnListBoxButtons)
+  EVT_BUTTON    (ID_LISTBOX_SEL_STR,      MyPanel::OnListBoxButtons)
+  EVT_BUTTON    (ID_LISTBOX_CLEAR,        MyPanel::OnListBoxButtons)
+  EVT_BUTTON    (ID_LISTBOX_APPEND,       MyPanel::OnListBoxButtons)
+  EVT_BUTTON    (ID_LISTBOX_DELETE,       MyPanel::OnListBoxButtons)
+  EVT_BUTTON    (ID_LISTBOX_FONT,         MyPanel::OnListBoxButtons)
+  EVT_CHECKBOX  (ID_LISTBOX_ENABLE,       MyPanel::OnListBoxButtons)
+  EVT_CHOICE    (ID_CHOICE,               MyPanel::OnChoice)
+  EVT_BUTTON    (ID_CHOICE_SEL_NUM,       MyPanel::OnChoiceButtons)
+  EVT_BUTTON    (ID_CHOICE_SEL_STR,       MyPanel::OnChoiceButtons)
+  EVT_BUTTON    (ID_CHOICE_CLEAR,         MyPanel::OnChoiceButtons)
+  EVT_BUTTON    (ID_CHOICE_APPEND,        MyPanel::OnChoiceButtons)
+  EVT_BUTTON    (ID_CHOICE_DELETE,        MyPanel::OnChoiceButtons)
+  EVT_BUTTON    (ID_CHOICE_FONT,          MyPanel::OnChoiceButtons)
+  EVT_CHECKBOX  (ID_CHOICE_ENABLE,        MyPanel::OnChoiceButtons)
+  EVT_CHOICE    (ID_COMBO,                MyPanel::OnCombo)
+  EVT_BUTTON    (ID_COMBO_SEL_NUM,        MyPanel::OnComboButtons)
+  EVT_BUTTON    (ID_COMBO_SEL_STR,        MyPanel::OnComboButtons)
+  EVT_BUTTON    (ID_COMBO_CLEAR,          MyPanel::OnComboButtons)
+  EVT_BUTTON    (ID_COMBO_APPEND,         MyPanel::OnComboButtons)
+  EVT_BUTTON    (ID_COMBO_DELETE,         MyPanel::OnComboButtons)
+  EVT_BUTTON    (ID_COMBO_FONT,           MyPanel::OnComboButtons)
+  EVT_CHECKBOX  (ID_COMBO_ENABLE,         MyPanel::OnComboButtons)
+  EVT_RADIOBOX  (ID_RADIOBOX,             MyPanel::OnRadio)
+  EVT_BUTTON    (ID_RADIOBOX_SEL_NUM,     MyPanel::OnRadioButtons)
+  EVT_BUTTON    (ID_RADIOBOX_SEL_STR,     MyPanel::OnRadioButtons)
+  EVT_BUTTON    (ID_RADIOBOX_FONT,        MyPanel::OnRadioButtons)
+  EVT_CHECKBOX  (ID_RADIOBOX_ENABLE,      MyPanel::OnRadioButtons)
+  EVT_BUTTON    (ID_SET_FONT,             MyPanel::OnSetFont)
 END_EVENT_TABLE()
 
 MyPanel::MyPanel( wxFrame *frame, int x, int y, int w, int h ) :
   wxPanel( frame, -1, wxPoint(x, y), wxSize(w, h) )
 {
   m_text = new wxTextCtrl( this, -1, "This is the log window.\n", wxPoint(0,50), wxSize(100,50), wxTE_MULTILINE );
+  m_text->SetBackgroundColour("yellow");
   
   m_notebook = new wxNotebook( this, ID_NOTEBOOK, wxPoint(0,0), wxSize(200,150) );
   
@@ -190,38 +221,77 @@ MyPanel::MyPanel( wxFrame *frame, int x, int y, int w, int h ) :
     "example.",
   };
   
+  // image ids and names
+  enum
+  {
+    Image_List, Image_Choice, Image_Combo, Image_Text, Image_Radio, Image_Max
+  };
+  
+  const char *aIconNames[] =
+  {
+    "list.xpm", "choice.xpm", "combo.xpm", "text.xpm", "radio.xpm"
+  };
+  
+  wxASSERT( WXSIZEOF(aIconNames) == Image_Max ); // keep in sync
+
+  // TODO should find the dir from path to program
+  wxString strIconDir = "icons/"; 
+
+  // fill the image list
+  wxImageList *imagelist = new wxImageList(32, 32);
+  for ( size_t n = 0; n < Image_Max; n++ ) 
+  {
+    imagelist->Add(wxBitmap(strIconDir + aIconNames[n]));
+  }
+
+  m_notebook->SetImageList(imagelist);
+
   wxPanel *panel = new wxPanel(m_notebook);
   m_listbox = new wxListBox( panel, ID_LISTBOX, wxPoint(10,10), wxSize(120,70), 4, choices );
-  (void)new wxButton( panel, ID_LISTBOX_SEL_NUM, "Select #2", wxPoint(180,30), wxSize(100,30) );
-  (void)new wxButton( panel, ID_LISTBOX_SEL_STR, "Select 'This'", wxPoint(300,30), wxSize(100,30) );
-  (void)new wxButton( panel, ID_LISTBOX_CLEAR, "Clear", wxPoint(180,80), wxSize(100,30) );
-  (void)new wxButton( panel, ID_LISTBOX_APPEND, "Append 'Hi!'", wxPoint(300,80), wxSize(100,30) );
-  m_notebook->AddPage(panel, "wxList");
+  m_listbox->SetBackgroundColour("red");
+  (void)new wxButton( panel, ID_LISTBOX_SEL_NUM, "Select #2", wxPoint(180,30), wxSize(140,30) );
+  (void)new wxButton( panel, ID_LISTBOX_SEL_STR, "Select 'This'", wxPoint(340,30), wxSize(140,30) );
+  wxButton *btn = new wxButton( panel, ID_LISTBOX_CLEAR, "Clear", wxPoint(180,80), wxSize(140,30) );
+  btn->SetBackgroundColour("green");
+  (void)new wxButton( panel, ID_LISTBOX_APPEND, "Append 'Hi!'", wxPoint(340,80), wxSize(140,30) );
+  (void)new wxButton( panel, ID_LISTBOX_DELETE, "Delete selected item", wxPoint(180,130), wxSize(140,30) );
+  (void)new wxButton( panel, ID_LISTBOX_FONT, "Set Italic font", wxPoint(340,130), wxSize(140,30) );
+  (void)new wxCheckBox( panel, ID_LISTBOX_ENABLE, "Disable", wxPoint(20,130), wxSize(140,30) );
+  m_notebook->AddPage(panel, "wxList", FALSE, Image_List);
   
   panel = new wxPanel(m_notebook);
   m_choice = new wxChoice( panel, ID_CHOICE, wxPoint(10,10), wxSize(120,-1), 4, choices );
-  (void)new wxButton( panel, ID_CHOICE_SEL_NUM, "Select #2", wxPoint(180,30), wxSize(100,30) );
-  (void)new wxButton( panel, ID_CHOICE_SEL_STR, "Select 'This'", wxPoint(300,30), wxSize(100,30) );
-  (void)new wxButton( panel, ID_CHOICE_CLEAR, "Clear", wxPoint(180,80), wxSize(100,30) );
-  (void)new wxButton( panel, ID_CHOICE_APPEND, "Append 'Hi!'", wxPoint(300,80), wxSize(100,30) );
-  m_notebook->AddPage(panel, "wxChoice");
+  (void)new wxButton( panel, ID_CHOICE_SEL_NUM, "Select #2", wxPoint(180,30), wxSize(140,30) );
+  (void)new wxButton( panel, ID_CHOICE_SEL_STR, "Select 'This'", wxPoint(340,30), wxSize(140,30) );
+  (void)new wxButton( panel, ID_CHOICE_CLEAR, "Clear", wxPoint(180,80), wxSize(140,30) );
+  (void)new wxButton( panel, ID_CHOICE_APPEND, "Append 'Hi!'", wxPoint(340,80), wxSize(140,30) );
+  (void)new wxButton( panel, ID_CHOICE_DELETE, "Delete selected item", wxPoint(180,130), wxSize(140,30) );
+  (void)new wxButton( panel, ID_CHOICE_FONT, "Set Italic font", wxPoint(340,130), wxSize(140,30) );
+  (void)new wxCheckBox( panel, ID_CHOICE_ENABLE, "Disable", wxPoint(20,130), wxSize(140,30) );
+  m_notebook->AddPage(panel, "wxChoice", FALSE, Image_Choice);
   
   panel = new wxPanel(m_notebook);
-  m_combo = new wxComboBox( panel, ID_COMBO, "This", wxPoint(10,10), wxSize(170,-1), 4, choices );
-  (void)new wxButton( panel, ID_COMBO_SEL_NUM, "Select #2", wxPoint(180,30), wxSize(100,30) );
-  (void)new wxButton( panel, ID_COMBO_SEL_STR, "Select 'This'", wxPoint(300,30), wxSize(100,30) );
-  (void)new wxButton( panel, ID_COMBO_CLEAR, "Clear", wxPoint(180,80), wxSize(100,30) );
-  (void)new wxButton( panel, ID_COMBO_APPEND, "Append 'Hi!'", wxPoint(300,80), wxSize(100,30) );
-  m_notebook->AddPage(panel, "wxComboBox");
+  m_combo = new wxComboBox( panel, ID_COMBO, "This", wxPoint(10,10), wxSize(120,-1), 4, choices );
+  (void)new wxButton( panel, ID_COMBO_SEL_NUM, "Select #2", wxPoint(180,30), wxSize(140,30) );
+  (void)new wxButton( panel, ID_COMBO_SEL_STR, "Select 'This'", wxPoint(340,30), wxSize(140,30) );
+  (void)new wxButton( panel, ID_COMBO_CLEAR, "Clear", wxPoint(180,80), wxSize(140,30) );
+  (void)new wxButton( panel, ID_COMBO_APPEND, "Append 'Hi!'", wxPoint(340,80), wxSize(140,30) );
+  (void)new wxButton( panel, ID_COMBO_DELETE, "Delete selected item", wxPoint(180,130), wxSize(140,30) );
+  (void)new wxButton( panel, ID_COMBO_FONT, "Set Italic font", wxPoint(340,130), wxSize(140,30) );
+  (void)new wxCheckBox( panel, ID_COMBO_ENABLE, "Disable", wxPoint(20,130), wxSize(140,30) );
+  m_notebook->AddPage(panel, "wxComboBox", FALSE, Image_Combo);
   
   wxTextCtrl *text = new wxTextCtrl( m_notebook, ID_TEXT, "Write text here.", wxPoint(10,10), wxSize(120,100), wxTE_MULTILINE );
-  m_notebook->AddPage( text, "wxTextCtrl" );
+  m_notebook->AddPage(text, "wxTextCtrl" , FALSE, Image_Text);
   
   panel = new wxPanel(m_notebook);
   m_radio = new wxRadioBox( panel, ID_RADIOBOX, "This", wxPoint(10,10), wxSize(-1,-1), 4, choices );
-  (void)new wxButton( panel, ID_RADIOBOX_SEL_NUM, "Select #2", wxPoint(200,30), wxSize(100,30) );
-  (void)new wxButton( panel, ID_RADIOBOX_SEL_STR, "Select 'This'", wxPoint(200,80), wxSize(100,30) );
-  m_notebook->AddPage(panel, "wxRadioBox");
+  (void)new wxButton( panel, ID_RADIOBOX_SEL_NUM, "Select #2", wxPoint(180,30), wxSize(140,30) );
+  (void)new wxButton( panel, ID_RADIOBOX_SEL_STR, "Select 'This'", wxPoint(180,80), wxSize(140,30) );
+  (void)new wxButton( panel, ID_RADIOBOX_FONT, "Set Italic font", wxPoint(180,130), wxSize(140,30) );
+  (void)new wxCheckBox( panel, ID_RADIOBOX_ENABLE, "Disable", wxPoint(20,130), wxSize(140,30) );
+  m_fontButton = new wxButton( panel, ID_SET_FONT, "Set more Italic font", wxPoint(340,30), wxSize(160,30) );
+  m_notebook->AddPage(panel, "wxRadioBox", FALSE, Image_Radio);
 }
 
 void MyPanel::OnSize( wxSizeEvent& WXUNUSED(event) )
@@ -230,8 +300,13 @@ void MyPanel::OnSize( wxSizeEvent& WXUNUSED(event) )
   int y = 0;
   GetClientSize( &x, &y );
   
-  if (m_notebook) m_notebook->SetSize( 2, 2, x-4, y/2-4 );
-  if (m_text) m_text->SetSize( 2, y/2+2, x-4, y/2-4 );
+  if (m_notebook) m_notebook->SetSize( 2, 2, x-4, y*2/3-4 );
+  if (m_text) m_text->SetSize( 2, y*2/3+2, x-4, y/3-4 );
+}
+
+void MyPanel::OnPageChanged( wxNotebookEvent &event )
+{
+  *m_text << "Notebook selection is " << event.GetSelection() << "\n";
 }
 
 void MyPanel::OnListBox( wxCommandEvent &event )
@@ -245,6 +320,11 @@ void MyPanel::OnListBoxButtons( wxCommandEvent &event )
 {
   switch (event.GetId())
   {
+    case ID_LISTBOX_ENABLE:
+    {
+      m_listbox->Enable( !((bool)event.GetInt()) );
+      break;
+    }
     case ID_LISTBOX_SEL_NUM:
     {
       m_listbox->SetSelection( 2 );
@@ -265,6 +345,17 @@ void MyPanel::OnListBoxButtons( wxCommandEvent &event )
       m_listbox->Append( "Hi!" );
       break;
     }
+    case ID_LISTBOX_DELETE:
+    {
+      int idx = m_listbox->GetSelection();
+      m_listbox->Delete( idx );
+      break;
+    }
+    case ID_LISTBOX_FONT:
+    {
+      m_listbox->SetFont( *wxITALIC_FONT );
+      break;
+    }
   }
 }
 
@@ -279,6 +370,11 @@ void MyPanel::OnChoiceButtons( wxCommandEvent &event )
 {
   switch (event.GetId())
   {
+    case ID_CHOICE_ENABLE:
+    {
+      m_choice->Enable( !((bool)event.GetInt()) );
+      break;
+    }
     case ID_CHOICE_SEL_NUM:
     {
       m_choice->SetSelection( 2 );
@@ -299,6 +395,17 @@ void MyPanel::OnChoiceButtons( wxCommandEvent &event )
       m_choice->Append( "Hi!" );
       break;
     }
+    case ID_CHOICE_DELETE:
+    {
+      int idx = m_choice->GetSelection();
+      m_choice->Delete( idx );
+      break;
+    }
+    case ID_CHOICE_FONT:
+    {
+      m_choice->SetFont( *wxITALIC_FONT );
+      break;
+    }
   }
 }
 
@@ -313,6 +420,11 @@ void MyPanel::OnComboButtons( wxCommandEvent &event )
 {
   switch (event.GetId())
   {
+    case ID_COMBO_ENABLE:
+    {
+      m_combo->Enable( !((bool)event.GetInt()) );
+      break;
+    }
     case ID_COMBO_SEL_NUM:
     {
       m_combo->SetSelection( 2 );
@@ -333,6 +445,17 @@ void MyPanel::OnComboButtons( wxCommandEvent &event )
       m_combo->Append( "Hi!" );
       break;
     }
+    case ID_COMBO_DELETE:
+    {
+      int idx = m_combo->GetSelection();
+      m_combo->Delete( idx );
+      break;
+    }
+    case ID_COMBO_FONT:
+    {
+      m_combo->SetFont( *wxITALIC_FONT );
+      break;
+    }
   }
 }
 
@@ -347,6 +470,11 @@ void MyPanel::OnRadioButtons( wxCommandEvent &event )
 {
   switch (event.GetId())
   {
+    case ID_RADIOBOX_ENABLE:
+    {
+      m_radio->Enable( !((bool)event.GetInt()) );
+      break;
+    }
     case ID_RADIOBOX_SEL_NUM:
     {
       m_radio->SetSelection( 2 );
@@ -357,9 +485,25 @@ void MyPanel::OnRadioButtons( wxCommandEvent &event )
       m_radio->SetStringSelection( "This" );
       break;
     }
+    case ID_RADIOBOX_FONT:
+    {
+      m_radio->SetFont( *wxITALIC_FONT );
+      break;
+    }
   }
 }
 
+void MyPanel::OnSetFont( wxCommandEvent &WXUNUSED(event) )
+{
+  m_fontButton->SetFont( *wxITALIC_FONT );
+  m_text->SetFont( *wxITALIC_FONT );
+}
+
+MyPanel::~MyPanel()
+{
+  delete m_notebook->GetImageList();
+}
+
 //----------------------------------------------------------------------
 // MyFrame
 //----------------------------------------------------------------------
@@ -385,5 +529,3 @@ void MyFrame::OnAbout( wxCommandEvent& WXUNUSED(event) )
   wxMessageDialog dialog(this, "This is a control sample", "About Controls", wxOK );
   dialog.ShowModal();
 }
-
-