| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: validate.cpp |
| 3 | // Purpose: wxWidgets validator sample |
| 4 | // Author: Julian Smart |
| 5 | // Modified by: |
| 6 | // Created: 04/01/98 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) Julian Smart |
| 9 | // Licence: wxWindows license |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // See online help for an overview of validators. In general, a |
| 13 | // validator transfers data between a control and a variable. |
| 14 | // It may also test for validity of a string transferred to or |
| 15 | // from a text control. All validators transfer data, but not |
| 16 | // all test validity, so don't be confused by the name. |
| 17 | |
| 18 | // For compilers that support precompilation, includes "wx/wx.h". |
| 19 | #include "wx/wxprec.h" |
| 20 | |
| 21 | #ifdef __BORLANDC__ |
| 22 | #pragma hdrstop |
| 23 | #endif // __BORLANDC__ |
| 24 | |
| 25 | #ifndef WX_PRECOMP |
| 26 | #include "wx/wx.h" |
| 27 | #endif // WX_PRECOMP |
| 28 | |
| 29 | #include "validate.h" |
| 30 | |
| 31 | #include "wx/sizer.h" |
| 32 | #include "wx/valgen.h" |
| 33 | #include "wx/valtext.h" |
| 34 | |
| 35 | #ifndef __WXMSW__ |
| 36 | #include "../sample.xpm" |
| 37 | #endif |
| 38 | |
| 39 | // ---------------------------------------------------------------------------- |
| 40 | // Global data |
| 41 | // ---------------------------------------------------------------------------- |
| 42 | |
| 43 | MyData g_data; |
| 44 | |
| 45 | wxString g_listbox_choices[] = |
| 46 | {wxT("one"), wxT("two"), wxT("three")}; |
| 47 | |
| 48 | wxString g_combobox_choices[] = |
| 49 | {wxT("yes"), wxT("no"), wxT("maybe")}; |
| 50 | |
| 51 | wxString g_radiobox_choices[] = |
| 52 | {wxT("green"), wxT("yellow"), wxT("red")}; |
| 53 | |
| 54 | // ---------------------------------------------------------------------------- |
| 55 | // MyData |
| 56 | // ---------------------------------------------------------------------------- |
| 57 | |
| 58 | MyData::MyData() |
| 59 | { |
| 60 | // This string will be passed to an alpha-only validator, which |
| 61 | // will complain because spaces aren't alpha. Note that validation |
| 62 | // is performed only when 'OK' is pressed. It would be nice to |
| 63 | // enhance this so that validation would occur when the text |
| 64 | // control loses focus. |
| 65 | m_string = wxT("Spaces are invalid here"); |
| 66 | m_listbox_choices.Add(0); |
| 67 | } |
| 68 | |
| 69 | // ---------------------------------------------------------------------------- |
| 70 | // MyApp |
| 71 | // ---------------------------------------------------------------------------- |
| 72 | |
| 73 | IMPLEMENT_APP(MyApp) |
| 74 | |
| 75 | bool MyApp::OnInit() |
| 76 | { |
| 77 | if ( !wxApp::OnInit() ) |
| 78 | return false; |
| 79 | |
| 80 | // Create and display the main frame window. |
| 81 | MyFrame *frame = new MyFrame((wxFrame *) NULL, wxT("Validator Test"), |
| 82 | 50, 50, 300, 250); |
| 83 | frame->Show(true); |
| 84 | SetTopWindow(frame); |
| 85 | return true; |
| 86 | } |
| 87 | |
| 88 | // ---------------------------------------------------------------------------- |
| 89 | // MyFrame |
| 90 | // ---------------------------------------------------------------------------- |
| 91 | |
| 92 | BEGIN_EVENT_TABLE(MyFrame, wxFrame) |
| 93 | EVT_MENU(wxID_EXIT, MyFrame::OnQuit) |
| 94 | EVT_MENU(VALIDATE_TEST_DIALOG, MyFrame::OnTestDialog) |
| 95 | EVT_MENU(VALIDATE_TOGGLE_BELL, MyFrame::OnToggleBell) |
| 96 | END_EVENT_TABLE() |
| 97 | |
| 98 | MyFrame::MyFrame(wxFrame *frame, const wxString&title, int x, int y, int w, int h) |
| 99 | : wxFrame(frame, wxID_ANY, title, wxPoint(x, y), wxSize(w, h)), |
| 100 | m_silent(true) |
| 101 | { |
| 102 | SetIcon(wxICON(sample)); |
| 103 | |
| 104 | // Create a listbox to display the validated data. |
| 105 | m_listbox = new wxListBox(this, wxID_ANY); |
| 106 | m_listbox->Append(wxString(_T("Try 'File|Test' to see how validators work."))); |
| 107 | |
| 108 | wxMenu *file_menu = new wxMenu; |
| 109 | |
| 110 | file_menu->Append(VALIDATE_TEST_DIALOG, wxT("&Test"), wxT("Demonstrate validators")); |
| 111 | file_menu->AppendCheckItem(VALIDATE_TOGGLE_BELL, wxT("&Bell on error"), wxT("Toggle bell on error")); |
| 112 | file_menu->AppendSeparator(); |
| 113 | file_menu->Append(wxID_EXIT, wxT("E&xit")); |
| 114 | |
| 115 | wxMenuBar *menu_bar = new wxMenuBar; |
| 116 | menu_bar->Append(file_menu, wxT("File")); |
| 117 | SetMenuBar(menu_bar); |
| 118 | |
| 119 | // All validators share a common (static) flag that controls |
| 120 | // whether they beep on error. Here we turn it off: |
| 121 | wxValidator::SetBellOnError(m_silent); |
| 122 | file_menu->Check(VALIDATE_TOGGLE_BELL, !wxValidator::IsSilent()); |
| 123 | |
| 124 | #if wxUSE_STATUSBAR |
| 125 | CreateStatusBar(1); |
| 126 | #endif // wxUSE_STATUSBAR |
| 127 | } |
| 128 | |
| 129 | void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event)) |
| 130 | { |
| 131 | Close(true); |
| 132 | } |
| 133 | |
| 134 | void MyFrame::OnTestDialog(wxCommandEvent& WXUNUSED(event)) |
| 135 | { |
| 136 | // The validators defined in the dialog implementation bind controls |
| 137 | // and variables together. Values are transferred between them behind |
| 138 | // the scenes, so here we don't have to query the controls for their |
| 139 | // values. |
| 140 | MyDialog dialog(this, wxT("Validator demonstration")); |
| 141 | |
| 142 | // When the dialog is displayed, validators automatically transfer |
| 143 | // data from variables to their corresponding controls. |
| 144 | if ( dialog.ShowModal() == wxID_OK ) |
| 145 | { |
| 146 | // 'OK' was pressed, so controls that have validators are |
| 147 | // automatically transferred to the variables we specified |
| 148 | // when we created the validators. |
| 149 | m_listbox->Clear(); |
| 150 | m_listbox->Append(wxString(_T("string: ")) + g_data.m_string); |
| 151 | for(unsigned int i = 0; i < g_data.m_listbox_choices.GetCount(); ++i) |
| 152 | { |
| 153 | int j = g_data.m_listbox_choices[i]; |
| 154 | m_listbox->Append(wxString(_T("listbox choice(s): ")) + g_listbox_choices[j]); |
| 155 | } |
| 156 | |
| 157 | wxString checkbox_state(g_data.m_checkbox_state ? _T("checked") : _T("unchecked")); |
| 158 | m_listbox->Append(wxString(_T("checkbox: ")) + checkbox_state); |
| 159 | m_listbox->Append(wxString(_T("combobox: ")) + g_data.m_combobox_choice); |
| 160 | m_listbox->Append(wxString(_T("radiobox: ")) + g_radiobox_choices[g_data.m_radiobox_choice]); |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | void MyFrame::OnToggleBell(wxCommandEvent& event) |
| 165 | { |
| 166 | m_silent = !m_silent; |
| 167 | wxValidator::SetBellOnError(m_silent); |
| 168 | event.Skip(); |
| 169 | } |
| 170 | |
| 171 | // ---------------------------------------------------------------------------- |
| 172 | // MyDialog |
| 173 | // ---------------------------------------------------------------------------- |
| 174 | |
| 175 | MyDialog::MyDialog( wxWindow *parent, const wxString& title, |
| 176 | const wxPoint& pos, const wxSize& size, const long WXUNUSED(style) ) : |
| 177 | wxDialog(parent, VALIDATE_DIALOG_ID, title, pos, size, wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER) |
| 178 | { |
| 179 | // Sizers automatically ensure a workable layout. |
| 180 | wxBoxSizer *mainsizer = new wxBoxSizer( wxVERTICAL ); |
| 181 | wxFlexGridSizer *flexgridsizer = new wxFlexGridSizer(2, 2, 5, 5); |
| 182 | |
| 183 | // Create and add controls to sizers. Note that a member variable |
| 184 | // of g_data is bound to each control upon construction. There is |
| 185 | // currently no easy way to substitute a different validator or a |
| 186 | // different transfer variable after a control has been constructed. |
| 187 | |
| 188 | // Pointers to some of these controls are saved in member variables |
| 189 | // so that we can use them elsewhere, like this one. |
| 190 | text = new wxTextCtrl(this, VALIDATE_TEXT, wxEmptyString, |
| 191 | wxPoint(10, 10), wxSize(120, wxDefaultCoord), 0, |
| 192 | wxTextValidator(wxFILTER_ALPHA, &g_data.m_string)); |
| 193 | flexgridsizer->Add(text); |
| 194 | |
| 195 | // This wxCheckBox* doesn't need to be assigned to any pointer |
| 196 | // because we don't use it elsewhere--it can be anonymous. |
| 197 | // We don't need any such pointer to query its state, which |
| 198 | // can be gotten directly from g_data. |
| 199 | flexgridsizer->Add(new wxCheckBox(this, VALIDATE_CHECK, wxT("Sample checkbox"), |
| 200 | wxPoint(130, 10), wxSize(120, wxDefaultCoord), 0, |
| 201 | wxGenericValidator(&g_data.m_checkbox_state))); |
| 202 | |
| 203 | flexgridsizer->Add(new wxListBox((wxWindow*)this, VALIDATE_LIST, |
| 204 | wxPoint(10, 30), wxSize(120, wxDefaultCoord), |
| 205 | 3, g_listbox_choices, wxLB_MULTIPLE, |
| 206 | wxGenericValidator(&g_data.m_listbox_choices))); |
| 207 | |
| 208 | combobox = new wxComboBox((wxWindow*)this, VALIDATE_COMBO, wxEmptyString, |
| 209 | wxPoint(130, 30), wxSize(120, wxDefaultCoord), |
| 210 | 3, g_combobox_choices, 0L, |
| 211 | wxGenericValidator(&g_data.m_combobox_choice)); |
| 212 | flexgridsizer->Add(combobox); |
| 213 | |
| 214 | mainsizer->Add(flexgridsizer, 1, wxGROW | wxALL, 10); |
| 215 | |
| 216 | mainsizer->Add(new wxRadioBox((wxWindow*)this, VALIDATE_RADIO, wxT("Pick a color"), |
| 217 | wxPoint(10, 100), wxDefaultSize, |
| 218 | 3, g_radiobox_choices, 1, wxRA_SPECIFY_ROWS, |
| 219 | wxGenericValidator(&g_data.m_radiobox_choice)), |
| 220 | 0, wxGROW | wxALL, 10); |
| 221 | |
| 222 | wxGridSizer *gridsizer = new wxGridSizer(2, 2, 5, 5); |
| 223 | |
| 224 | wxButton *ok_button = new wxButton(this, wxID_OK, wxT("OK"), wxPoint(250, 70), wxSize(80, 30)); |
| 225 | ok_button->SetDefault(); |
| 226 | gridsizer->Add(ok_button); |
| 227 | gridsizer->Add(new wxButton(this, wxID_CANCEL, wxT("Cancel"), wxPoint(250, 100), wxSize(80, 30))); |
| 228 | |
| 229 | mainsizer->Add(gridsizer, 0, wxGROW | wxALL, 10); |
| 230 | |
| 231 | SetSizer(mainsizer); |
| 232 | mainsizer->SetSizeHints(this); |
| 233 | } |
| 234 | |
| 235 | bool MyDialog::TransferDataToWindow() |
| 236 | { |
| 237 | bool r = wxDialog::TransferDataToWindow(); |
| 238 | // These function calls have to be made here, after the |
| 239 | // dialog has been created. |
| 240 | text->SetFocus(); |
| 241 | combobox->SetSelection(0); |
| 242 | return r; |
| 243 | } |
| 244 | |