samples/widgets/checkbox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Program:     wxWidgets Widgets Sample
   3 // Name:        checkbox.cpp
   4 // Purpose:     Part of the widgets sample showing wxCheckBox
   5 // Author:      Dimitri Schoolwerth, Vadim Zeitlin
   6 // Created:     27 Sep 2003
   7 // Id:          $Id$
   8 // Copyright:   (c) 2003 wxWindows team
   9 // License:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // for compilers that support precompilation, includes "wx/wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 // for all others, include the necessary headers
  28 #ifndef WX_PRECOMP
  29     #include "wx/app.h"
  30     #include "wx/log.h"
  31
  32     #include "wx/bitmap.h"
  33     #include "wx/button.h"
  34     #include "wx/checkbox.h"
  35     #include "wx/radiobox.h"
  36     #include "wx/statbox.h"
  37     #include "wx/textctrl.h"
  38
  39     #include "wx/sizer.h"
  40 #endif
  41
  42 #include "widgets.h"
  43
  44 #include "icons/checkbox.xpm"
  45
  46 // ----------------------------------------------------------------------------
  47 // constants
  48 // ----------------------------------------------------------------------------
  49
  50 // control ids
  51 enum
  52 {
  53     CheckboxPage_Reset = 100,
  54     CheckboxPage_ChangeLabel,
  55     CheckboxPage_Check,
  56     CheckboxPage_Uncheck,
  57     CheckboxPage_PartCheck,
  58     CheckboxPage_ChkRight,
  59     CheckboxPage_Checkbox
  60 };
  61
  62 enum
  63 {
  64     CheckboxKind_2State,
  65     CheckboxKind_3State,
  66     CheckboxKind_3StateUser
  67 };
  68
  69 // ----------------------------------------------------------------------------
  70 // CheckBoxWidgetsPage
  71 // ----------------------------------------------------------------------------
  72
  73 class CheckBoxWidgetsPage : public WidgetsPage
  74 {
  75 public:
  76     CheckBoxWidgetsPage(wxNotebook *notebook, wxImageList *imaglist);
  77     virtual ~CheckBoxWidgetsPage();
  78
  79 protected:
  80     // event handlers
  81     void OnCheckBox(wxCommandEvent& event);
  82
  83     void OnStyleChange(wxCommandEvent& event);
  84     void OnButtonReset(wxCommandEvent& event);
  85     void OnButtonChangeLabel(wxCommandEvent& event);
  86
  87     void OnButtonCheck(wxCommandEvent&) { m_checkbox->SetValue(true); }
  88     void OnButtonUncheck(wxCommandEvent&) { m_checkbox->SetValue(false); }
  89     void OnButtonPartCheck(wxCommandEvent&)
  90     {
  91         m_checkbox->Set3StateValue(wxCHK_UNDETERMINED);
  92     }
  93
  94     void Is3State(wxUpdateUIEvent& event)
  95     {
  96         event.Enable( m_checkbox->Is3State() );
  97     }
  98
  99
 100     // reset the wxCheckBox parameters
 101     void Reset();
 102
 103     // (re)create the wxCheckBox
 104     void CreateCheckbox();
 105
 106     // the controls
 107     // ------------
 108
 109     // the contols to choose the checkbox style
 110     wxCheckBox *m_chkRight;
 111     wxRadioBox *m_radioKind;
 112
 113     // the checkbox itself and the sizer it is in
 114     wxCheckBox *m_checkbox;
 115     wxSizer *m_sizerCheckbox;
 116
 117     // the text entries for command parameters
 118     wxTextCtrl *m_textLabel;
 119
 120 private:
 121     DECLARE_EVENT_TABLE()
 122     DECLARE_WIDGETS_PAGE(CheckBoxWidgetsPage)
 123 };
 124
 125 // ----------------------------------------------------------------------------
 126 // event tables
 127 // ----------------------------------------------------------------------------
 128
 129 BEGIN_EVENT_TABLE(CheckBoxWidgetsPage, WidgetsPage)
 130     EVT_CHECKBOX(CheckboxPage_Checkbox, CheckBoxWidgetsPage::OnCheckBox)
 131
 132     EVT_BUTTON(CheckboxPage_Reset, CheckBoxWidgetsPage::OnButtonReset)
 133     EVT_BUTTON(CheckboxPage_ChangeLabel, CheckBoxWidgetsPage::OnButtonChangeLabel)
 134     EVT_BUTTON(CheckboxPage_Check, CheckBoxWidgetsPage::OnButtonCheck)
 135     EVT_BUTTON(CheckboxPage_Uncheck, CheckBoxWidgetsPage::OnButtonUncheck)
 136     EVT_BUTTON(CheckboxPage_PartCheck, CheckBoxWidgetsPage::OnButtonPartCheck)
 137
 138     EVT_UPDATE_UI(CheckboxPage_PartCheck, CheckBoxWidgetsPage::Is3State)
 139
 140     EVT_RADIOBOX(wxID_ANY, CheckBoxWidgetsPage::OnStyleChange)
 141     EVT_CHECKBOX(CheckboxPage_ChkRight, CheckBoxWidgetsPage::OnStyleChange)
 142 END_EVENT_TABLE()
 143
 144 // ============================================================================
 145 // implementation
 146 // ============================================================================
 147
 148 IMPLEMENT_WIDGETS_PAGE(CheckBoxWidgetsPage, wxT("CheckBox"));
 149
 150 CheckBoxWidgetsPage::CheckBoxWidgetsPage(wxNotebook *notebook,
 151                                        wxImageList *imaglist)
 152                   : WidgetsPage(notebook)
 153 {
 154     imaglist->Add(wxBitmap(checkbox_xpm));
 155
 156     wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
 157
 158     // left pane
 159     wxStaticBox *box = new wxStaticBox(this, wxID_ANY, _T("&Set style"));
 160
 161     wxSizer *sizerLeft = new wxStaticBoxSizer(box, wxVERTICAL);
 162
 163     m_chkRight = CreateCheckBoxAndAddToSizer
 164                  (
 165                     sizerLeft,
 166                     _T("&Right aligned"),
 167                     CheckboxPage_ChkRight
 168                  );
 169
 170     sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
 171
 172     static const wxString kinds[] =
 173     {
 174         _T("usual &2-state checkbox"),
 175         _T("&3rd state settable by program"),
 176         _T("&user-settable 3rd state"),
 177     };
 178
 179     m_radioKind = new wxRadioBox(this, wxID_ANY, _T("&Kind"),
 180                                  wxDefaultPosition, wxDefaultSize,
 181                                  WXSIZEOF(kinds), kinds,
 182                                  1);
 183     sizerLeft->Add(m_radioKind, 0, wxGROW | wxALL, 5);
 184     wxButton *btn = new wxButton(this, CheckboxPage_Reset, _T("&Reset"));
 185     sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
 186
 187     // middle pane
 188     wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY, _T("&Operations"));
 189     wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
 190
 191     sizerMiddle->Add(CreateSizerWithTextAndButton(CheckboxPage_ChangeLabel,
 192                                                      _T("Change label"),
 193                                                      wxID_ANY,
 194                                                      &m_textLabel),
 195                      0, wxALL | wxGROW, 5);
 196     sizerMiddle->Add(new wxButton(this, CheckboxPage_Check, _T("&Check it")),
 197                      0, wxALL | wxGROW, 5);
 198     sizerMiddle->Add(new wxButton(this, CheckboxPage_Uncheck, _T("&Uncheck it")),
 199                      0, wxALL | wxGROW, 5);
 200     sizerMiddle->Add(new wxButton(this, CheckboxPage_PartCheck,
 201                                   _T("Put in &3rd state")),
 202                      0, wxALL | wxGROW, 5);
 203
 204     // right pane
 205     wxSizer *sizerRight = new wxBoxSizer(wxHORIZONTAL);
 206     m_checkbox = new wxCheckBox(this, CheckboxPage_Checkbox, _T("&Check me!"));
 207     sizerRight->Add(0, 0, 1, wxCENTRE);
 208     sizerRight->Add(m_checkbox, 1, wxCENTRE);
 209     sizerRight->Add(0, 0, 1, wxCENTRE);
 210     sizerRight->SetMinSize(150, 0);
 211     m_sizerCheckbox = sizerRight; // save it to modify it later
 212
 213     // the 3 panes panes compose the window
 214     sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
 215     sizerTop->Add(sizerMiddle, 1, wxGROW | wxALL, 10);
 216     sizerTop->Add(sizerRight, 1, wxGROW | (wxALL & ~wxRIGHT), 10);
 217
 218     // final initializations
 219     Reset();
 220
 221     SetSizer(sizerTop);
 222
 223     sizerTop->Fit(this);
 224 }
 225
 226 CheckBoxWidgetsPage::~CheckBoxWidgetsPage()
 227 {
 228 }
 229
 230 void CheckBoxWidgetsPage::Reset()
 231 {
 232     m_chkRight->SetValue(false);
 233     m_radioKind->SetSelection(CheckboxKind_2State);
 234 }
 235
 236 void CheckBoxWidgetsPage::CreateCheckbox()
 237 {
 238     wxString label = m_checkbox->GetLabel();
 239
 240     size_t count = m_sizerCheckbox->GetChildren().GetCount();
 241     for ( size_t n = 0; n < count; n++ )
 242     {
 243         m_sizerCheckbox->Remove(0);
 244     }
 245
 246     delete m_checkbox;
 247
 248     int flags = 0;
 249     if ( m_chkRight->IsChecked() )
 250         flags |= wxALIGN_RIGHT;
 251
 252     switch ( m_radioKind->GetSelection() )
 253     {
 254         default:
 255             wxFAIL_MSG(_T("unexpected radiobox selection"));
 256             // fall through
 257
 258         case CheckboxKind_2State:
 259             flags |= wxCHK_2STATE;
 260             break;
 261
 262         case CheckboxKind_3StateUser:
 263             flags |= wxCHK_ALLOW_3RD_STATE_FOR_USER;
 264             // fall through
 265
 266         case CheckboxKind_3State:
 267             flags |= wxCHK_3STATE;
 268             break;
 269     }
 270
 271     m_checkbox = new wxCheckBox(this, CheckboxPage_Checkbox, label,
 272                               wxDefaultPosition, wxDefaultSize,
 273                               flags);
 274
 275     m_sizerCheckbox->Add(0, 0, 1, wxCENTRE);
 276     m_sizerCheckbox->Add(m_checkbox, 1, wxCENTRE);
 277     m_sizerCheckbox->Add(0, 0, 1, wxCENTRE);
 278     m_sizerCheckbox->Layout();
 279 }
 280
 281 // ----------------------------------------------------------------------------
 282 // event handlers
 283 // ----------------------------------------------------------------------------
 284
 285 void CheckBoxWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 286 {
 287     Reset();
 288
 289     CreateCheckbox();
 290 }
 291
 292 void CheckBoxWidgetsPage::OnStyleChange(wxCommandEvent& WXUNUSED(event))
 293 {
 294     CreateCheckbox();
 295 }
 296
 297 void CheckBoxWidgetsPage::OnButtonChangeLabel(wxCommandEvent& WXUNUSED(event))
 298 {
 299     m_checkbox->SetLabel(m_textLabel->GetValue());
 300 }
 301
 302 void CheckBoxWidgetsPage::OnCheckBox(wxCommandEvent& event)
 303 {
 304     wxLogMessage(_T("Test checkbox %schecked (value = %d)."),
 305                  event.IsChecked() ? _T("") : _T("un"),
 306                  (int)m_checkbox->Get3StateValue());
 307 }
 308