- wxButton *but1 = new wxButton(this, wxID_OK, "OK", wxPoint(250, 10), wxSize(80, 30));
- (void)new wxButton(this, wxID_CANCEL, "Cancel", wxPoint(250, 60), wxSize(80, 30));
-
- (void)new wxTextCtrl(this, VALIDATE_TEXT, "",
- wxPoint(10, 10), wxSize(120, -1), 0, wxTextValidator(wxFILTER_ALPHA, &g_data.m_string));
-
- SetBackgroundColour(wxColour(0,0,255));
+ // Sizers automatically ensure a workable layout.
+ wxBoxSizer *mainsizer = new wxBoxSizer( wxVERTICAL );
+ wxFlexGridSizer *flexgridsizer = new wxFlexGridSizer(2, 2, 5, 5);
+
+ // Create and add controls to sizers. Note that a member variable
+ // of g_data is bound to each control upon construction. There is
+ // currently no easy way to substitute a different validator or a
+ // different transfer variable after a control has been constructed.
+
+ // Pointers to some of these controls are saved in member variables
+ // so that we can use them elsewhere, like this one.
+ text = new wxTextCtrl(this, VALIDATE_TEXT, wxT(""),
+ wxPoint(10, 10), wxSize(120, -1), 0,
+ wxTextValidator(wxFILTER_ALPHA, &g_data.m_string));
+ flexgridsizer->Add(text);
+
+ // This wxCheckBox* doesn't need to be assigned to any pointer
+ // because we don't use it elsewhere--it can be anonymous.
+ // We don't need any such pointer to query its state, which
+ // can be gotten directly from g_data.
+ flexgridsizer->Add(new wxCheckBox(this, VALIDATE_CHECK, wxT("Sample checkbox"),
+ wxPoint(130, 10), wxSize(120, -1), 0,
+ wxGenericValidator(&g_data.m_checkbox_state)));
+
+ flexgridsizer->Add(new wxListBox((wxWindow*)this, VALIDATE_LIST,
+ wxPoint(10, 30), wxSize(120, -1),
+ 3, g_listbox_choices, wxLB_MULTIPLE,
+ wxGenericValidator(&g_data.m_listbox_choices)));
+
+ combobox = new wxComboBox((wxWindow*)this, VALIDATE_COMBO, wxT(""),
+ wxPoint(130, 30), wxSize(120, -1),
+ 3, g_combobox_choices, 0L,
+ wxGenericValidator(&g_data.m_combobox_choice));
+ flexgridsizer->Add(combobox);
+
+ mainsizer->Add(flexgridsizer, 1, wxGROW | wxALL, 10);
+
+ mainsizer->Add(new wxRadioBox((wxWindow*)this, VALIDATE_RADIO, wxT("Pick a color"),
+ wxPoint(10, 100), wxSize(-1, -1),
+ 3, g_radiobox_choices, 1, wxRA_SPECIFY_ROWS,
+ wxGenericValidator(&g_data.m_radiobox_choice)),
+ 0, wxGROW | wxALL, 10);
+
+ wxGridSizer *gridsizer = new wxGridSizer(2, 2, 5, 5);
+
+ wxButton *ok_button = new wxButton(this, wxID_OK, wxT("OK"), wxPoint(250, 70), wxSize(80, 30));
+ ok_button->SetDefault();
+ gridsizer->Add(ok_button);
+ gridsizer->Add(new wxButton(this, wxID_CANCEL, wxT("Cancel"), wxPoint(250, 100), wxSize(80, 30)));
+
+ mainsizer->Add(gridsizer, 0, wxGROW | wxALL, 10);
+
+ SetSizer(mainsizer);
+ mainsizer->SetSizeHints(this);
+}