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(wxBookCtrlBase *book, wxImageList *imaglist);
  77     virtual ~CheckBoxWidgetsPage(){};
  78
  79     virtual wxControl *GetWidget() const { return m_checkbox; }
  80     virtual void RecreateWidget() { CreateCheckbox(); }
  81
  82 protected:
  83     // event handlers
  84     void OnCheckBox(wxCommandEvent& event);
  85
  86     void OnStyleChange(wxCommandEvent& event);
  87     void OnButtonReset(wxCommandEvent& event);
  88     void OnButtonChangeLabel(wxCommandEvent& event);
  89
  90     void OnButtonCheck(wxCommandEvent&) { m_checkbox->SetValue(true); }
  91     void OnButtonUncheck(wxCommandEvent&) { m_checkbox->SetValue(false); }
  92     void OnButtonPartCheck(wxCommandEvent&)
  93     {
  94         m_checkbox->Set3StateValue(wxCHK_UNDETERMINED);
  95     }
  96
  97     void Is3State(wxUpdateUIEvent& event)
  98     {
  99         event.Enable( m_checkbox->Is3State() );
 100     }
 101
 102
 103     // reset the wxCheckBox parameters
 104     void Reset();
 105
 106     // (re)create the wxCheckBox
 107     void CreateCheckbox();
 108
 109     // the controls
 110     // ------------
 111
 112     // the contols to choose the checkbox style
 113     wxCheckBox *m_chkRight;
 114     wxRadioBox *m_radioKind;
 115
 116     // the checkbox itself and the sizer it is in
 117     wxCheckBox *m_checkbox;
 118     wxSizer *m_sizerCheckbox;
 119
 120     // the text entries for command parameters
 121     wxTextCtrl *m_textLabel;
 122
 123 private:
 124     DECLARE_EVENT_TABLE()
 125     DECLARE_WIDGETS_PAGE(CheckBoxWidgetsPage)
 126 };
 127
 128 // ----------------------------------------------------------------------------
 129 // event tables
 130 // ----------------------------------------------------------------------------
 131
 132 BEGIN_EVENT_TABLE(CheckBoxWidgetsPage, WidgetsPage)
 133     EVT_CHECKBOX(CheckboxPage_Checkbox, CheckBoxWidgetsPage::OnCheckBox)
 134
 135     EVT_BUTTON(CheckboxPage_Reset, CheckBoxWidgetsPage::OnButtonReset)
 136     EVT_BUTTON(CheckboxPage_ChangeLabel, CheckBoxWidgetsPage::OnButtonChangeLabel)
 137     EVT_BUTTON(CheckboxPage_Check, CheckBoxWidgetsPage::OnButtonCheck)
 138     EVT_BUTTON(CheckboxPage_Uncheck, CheckBoxWidgetsPage::OnButtonUncheck)
 139     EVT_BUTTON(CheckboxPage_PartCheck, CheckBoxWidgetsPage::OnButtonPartCheck)
 140
 141     EVT_UPDATE_UI(CheckboxPage_PartCheck, CheckBoxWidgetsPage::Is3State)
 142
 143     EVT_RADIOBOX(wxID_ANY, CheckBoxWidgetsPage::OnStyleChange)
 144     EVT_CHECKBOX(CheckboxPage_ChkRight, CheckBoxWidgetsPage::OnStyleChange)
 145 END_EVENT_TABLE()
 146
 147 // ============================================================================
 148 // implementation
 149 // ============================================================================
 150
 151 IMPLEMENT_WIDGETS_PAGE(CheckBoxWidgetsPage, wxT("CheckBox"));
 152
 153 CheckBoxWidgetsPage::CheckBoxWidgetsPage(wxBookCtrlBase *book,
 154                                          wxImageList *imaglist)
 155                   : WidgetsPage(book)
 156 {
 157     imaglist->Add(wxBitmap(checkbox_xpm));
 158
 159     wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
 160
 161     // left pane
 162     wxStaticBox *box = new wxStaticBox(this, wxID_ANY, _T("&Set style"));
 163
 164     wxSizer *sizerLeft = new wxStaticBoxSizer(box, wxVERTICAL);
 165
 166     m_chkRight = CreateCheckBoxAndAddToSizer
 167                  (
 168                     sizerLeft,
 169                     _T("&Right aligned"),
 170                     CheckboxPage_ChkRight
 171                  );
 172
 173     sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
 174
 175     static const wxString kinds[] =
 176     {
 177         _T("usual &2-state checkbox"),
 178         _T("&3rd state settable by program"),
 179         _T("&user-settable 3rd state"),
 180     };
 181
 182     m_radioKind = new wxRadioBox(this, wxID_ANY, _T("&Kind"),
 183                                  wxDefaultPosition, wxDefaultSize,
 184                                  WXSIZEOF(kinds), kinds,
 185                                  1);
 186     sizerLeft->Add(m_radioKind, 0, wxGROW | wxALL, 5);
 187     wxButton *btn = new wxButton(this, CheckboxPage_Reset, _T("&Reset"));
 188     sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
 189
 190     // middle pane
 191     wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY, _T("&Operations"));
 192     wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
 193
 194     sizerMiddle->Add(CreateSizerWithTextAndButton(CheckboxPage_ChangeLabel,
 195                                                      _T("Change label"),
 196                                                      wxID_ANY,
 197                                                      &m_textLabel),
 198                      0, wxALL | wxGROW, 5);
 199     sizerMiddle->Add(new wxButton(this, CheckboxPage_Check, _T("&Check it")),
 200                      0, wxALL | wxGROW, 5);
 201     sizerMiddle->Add(new wxButton(this, CheckboxPage_Uncheck, _T("&Uncheck it")),
 202                      0, wxALL | wxGROW, 5);
 203     sizerMiddle->Add(new wxButton(this, CheckboxPage_PartCheck,
 204                                   _T("Put in &3rd state")),
 205                      0, wxALL | wxGROW, 5);
 206
 207     // right pane
 208     wxSizer *sizerRight = new wxBoxSizer(wxHORIZONTAL);
 209     m_checkbox = new wxCheckBox(this, CheckboxPage_Checkbox, _T("&Check me!"));
 210     sizerRight->Add(0, 0, 1, wxCENTRE);
 211     sizerRight->Add(m_checkbox, 1, wxCENTRE);
 212     sizerRight->Add(0, 0, 1, wxCENTRE);
 213     sizerRight->SetMinSize(150, 0);
 214     m_sizerCheckbox = sizerRight; // save it to modify it later
 215
 216     // the 3 panes panes compose the window
 217     sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
 218     sizerTop->Add(sizerMiddle, 1, wxGROW | wxALL, 10);
 219     sizerTop->Add(sizerRight, 1, wxGROW | (wxALL & ~wxRIGHT), 10);
 220
 221     // final initializations
 222     Reset();
 223
 224     SetSizer(sizerTop);
 225
 226     sizerTop->Fit(this);
 227 }
 228
 229 void CheckBoxWidgetsPage::Reset()
 230 {
 231     m_chkRight->SetValue(false);
 232     m_radioKind->SetSelection(CheckboxKind_2State);
 233 }
 234
 235 void CheckBoxWidgetsPage::CreateCheckbox()
 236 {
 237     wxString label = m_checkbox->GetLabel();
 238
 239     size_t count = m_sizerCheckbox->GetChildren().GetCount();
 240     for ( size_t n = 0; n < count; n++ )
 241     {
 242         m_sizerCheckbox->Remove(0);
 243     }
 244
 245     delete m_checkbox;
 246
 247     int flags = ms_defaultFlags;
 248     if ( m_chkRight->IsChecked() )
 249         flags |= wxALIGN_RIGHT;
 250
 251     switch ( m_radioKind->GetSelection() )
 252     {
 253         default:
 254             wxFAIL_MSG(_T("unexpected radiobox selection"));
 255             // fall through
 256
 257         case CheckboxKind_2State:
 258             flags |= wxCHK_2STATE;
 259             break;
 260
 261         case CheckboxKind_3StateUser:
 262             flags |= wxCHK_ALLOW_3RD_STATE_FOR_USER;
 263             // fall through
 264
 265         case CheckboxKind_3State:
 266             flags |= wxCHK_3STATE;
 267             break;
 268     }
 269
 270     m_checkbox = new wxCheckBox(this, CheckboxPage_Checkbox, label,
 271                               wxDefaultPosition, wxDefaultSize,
 272                               flags);
 273
 274     m_sizerCheckbox->Add(0, 0, 1, wxCENTRE);
 275     m_sizerCheckbox->Add(m_checkbox, 1, wxCENTRE);
 276     m_sizerCheckbox->Add(0, 0, 1, wxCENTRE);
 277     m_sizerCheckbox->Layout();
 278 }
 279
 280 // ----------------------------------------------------------------------------
 281 // event handlers
 282 // ----------------------------------------------------------------------------
 283
 284 void CheckBoxWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 285 {
 286     Reset();
 287
 288     CreateCheckbox();
 289 }
 290
 291 void CheckBoxWidgetsPage::OnStyleChange(wxCommandEvent& WXUNUSED(event))
 292 {
 293     CreateCheckbox();
 294 }
 295
 296 void CheckBoxWidgetsPage::OnButtonChangeLabel(wxCommandEvent& WXUNUSED(event))
 297 {
 298     m_checkbox->SetLabel(m_textLabel->GetValue());
 299 }
 300
 301 void CheckBoxWidgetsPage::OnCheckBox(wxCommandEvent& event)
 302 {
 303     wxLogMessage(_T("Test checkbox %schecked (value = %d)."),
 304                  event.IsChecked() ? _T("") : _T("un"),
 305                  (int)m_checkbox->Get3StateValue());
 306 }
 307