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 = wxID_HIGHEST,
  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(WidgetsBookCtrl *book, wxImageList *imaglist);
  77     virtual ~CheckBoxWidgetsPage(){};
  78
  79     virtual wxControl *GetWidget() const { return m_checkbox; }
  80     virtual void RecreateWidget() { CreateCheckbox(); }
  81
  82     // lazy creation of the content
  83     virtual void CreateContent();
  84
  85 protected:
  86     // event handlers
  87     void OnCheckBox(wxCommandEvent& event);
  88
  89     void OnStyleChange(wxCommandEvent& event);
  90     void OnButtonReset(wxCommandEvent& event);
  91     void OnButtonChangeLabel(wxCommandEvent& event);
  92
  93     void OnButtonCheck(wxCommandEvent&) { m_checkbox->SetValue(true); }
  94     void OnButtonUncheck(wxCommandEvent&) { m_checkbox->SetValue(false); }
  95     void OnButtonPartCheck(wxCommandEvent&)
  96     {
  97         m_checkbox->Set3StateValue(wxCHK_UNDETERMINED);
  98     }
  99
 100     void Is3State(wxUpdateUIEvent& event)
 101     {
 102         event.Enable( m_checkbox->Is3State() );
 103     }
 104
 105
 106     // reset the wxCheckBox parameters
 107     void Reset();
 108
 109     // (re)create the wxCheckBox
 110     void CreateCheckbox();
 111
 112     // the controls
 113     // ------------
 114
 115     // the contols to choose the checkbox style
 116     wxCheckBox *m_chkRight;
 117     wxRadioBox *m_radioKind;
 118
 119     // the checkbox itself and the sizer it is in
 120     wxCheckBox *m_checkbox;
 121     wxSizer *m_sizerCheckbox;
 122
 123     // the text entries for command parameters
 124     wxTextCtrl *m_textLabel;
 125
 126 private:
 127     DECLARE_EVENT_TABLE()
 128     DECLARE_WIDGETS_PAGE(CheckBoxWidgetsPage)
 129 };
 130
 131 // ----------------------------------------------------------------------------
 132 // event tables
 133 // ----------------------------------------------------------------------------
 134
 135 BEGIN_EVENT_TABLE(CheckBoxWidgetsPage, WidgetsPage)
 136     EVT_CHECKBOX(CheckboxPage_Checkbox, CheckBoxWidgetsPage::OnCheckBox)
 137
 138     EVT_BUTTON(CheckboxPage_Reset, CheckBoxWidgetsPage::OnButtonReset)
 139     EVT_BUTTON(CheckboxPage_ChangeLabel, CheckBoxWidgetsPage::OnButtonChangeLabel)
 140     EVT_BUTTON(CheckboxPage_Check, CheckBoxWidgetsPage::OnButtonCheck)
 141     EVT_BUTTON(CheckboxPage_Uncheck, CheckBoxWidgetsPage::OnButtonUncheck)
 142     EVT_BUTTON(CheckboxPage_PartCheck, CheckBoxWidgetsPage::OnButtonPartCheck)
 143
 144     EVT_UPDATE_UI(CheckboxPage_PartCheck, CheckBoxWidgetsPage::Is3State)
 145
 146     EVT_RADIOBOX(wxID_ANY, CheckBoxWidgetsPage::OnStyleChange)
 147     EVT_CHECKBOX(CheckboxPage_ChkRight, CheckBoxWidgetsPage::OnStyleChange)
 148 END_EVENT_TABLE()
 149
 150 // ============================================================================
 151 // implementation
 152 // ============================================================================
 153
 154 #if defined(__WXUNIVERSAL__)
 155     #define FAMILY_CTRLS UNIVERSAL_CTRLS
 156 #else
 157     #define FAMILY_CTRLS NATIVE_CTRLS
 158 #endif
 159
 160 IMPLEMENT_WIDGETS_PAGE(CheckBoxWidgetsPage, wxT("CheckBox"), FAMILY_CTRLS );
 161
 162 CheckBoxWidgetsPage::CheckBoxWidgetsPage(WidgetsBookCtrl *book,
 163                                          wxImageList *imaglist)
 164                   : WidgetsPage(book, imaglist, checkbox_xpm)
 165 {
 166 }
 167
 168 void CheckBoxWidgetsPage::CreateContent()
 169 {
 170     wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
 171
 172     // left pane
 173     wxStaticBox *box = new wxStaticBox(this, wxID_ANY, _T("&Set style"));
 174
 175     wxSizer *sizerLeft = new wxStaticBoxSizer(box, wxVERTICAL);
 176
 177     m_chkRight = CreateCheckBoxAndAddToSizer
 178                  (
 179                     sizerLeft,
 180                     _T("&Right aligned"),
 181                     CheckboxPage_ChkRight
 182                  );
 183
 184     sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
 185
 186     static const wxString kinds[] =
 187     {
 188         _T("usual &2-state checkbox"),
 189         _T("&3rd state settable by program"),
 190         _T("&user-settable 3rd state"),
 191     };
 192
 193     m_radioKind = new wxRadioBox(this, wxID_ANY, _T("&Kind"),
 194                                  wxDefaultPosition, wxDefaultSize,
 195                                  WXSIZEOF(kinds), kinds,
 196                                  1);
 197     sizerLeft->Add(m_radioKind, 0, wxGROW | wxALL, 5);
 198     wxButton *btn = new wxButton(this, CheckboxPage_Reset, _T("&Reset"));
 199     sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
 200
 201     // middle pane
 202     wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY, _T("&Operations"));
 203     wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
 204
 205     sizerMiddle->Add(CreateSizerWithTextAndButton(CheckboxPage_ChangeLabel,
 206                                                      _T("Change label"),
 207                                                      wxID_ANY,
 208                                                      &m_textLabel),
 209                      0, wxALL | wxGROW, 5);
 210     sizerMiddle->Add(new wxButton(this, CheckboxPage_Check, _T("&Check it")),
 211                      0, wxALL | wxGROW, 5);
 212     sizerMiddle->Add(new wxButton(this, CheckboxPage_Uncheck, _T("&Uncheck it")),
 213                      0, wxALL | wxGROW, 5);
 214     sizerMiddle->Add(new wxButton(this, CheckboxPage_PartCheck,
 215                                   _T("Put in &3rd state")),
 216                      0, wxALL | wxGROW, 5);
 217
 218     // right pane
 219     wxSizer *sizerRight = new wxBoxSizer(wxHORIZONTAL);
 220     m_checkbox = new wxCheckBox(this, CheckboxPage_Checkbox, _T("&Check me!"));
 221     sizerRight->Add(0, 0, 1, wxCENTRE);
 222     sizerRight->Add(m_checkbox, 1, wxCENTRE);
 223     sizerRight->Add(0, 0, 1, wxCENTRE);
 224     sizerRight->SetMinSize(150, 0);
 225     m_sizerCheckbox = sizerRight; // save it to modify it later
 226
 227     // the 3 panes panes compose the window
 228     sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
 229     sizerTop->Add(sizerMiddle, 1, wxGROW | wxALL, 10);
 230     sizerTop->Add(sizerRight, 1, wxGROW | (wxALL & ~wxRIGHT), 10);
 231
 232     // final initializations
 233     Reset();
 234
 235     SetSizer(sizerTop);
 236 }
 237
 238 void CheckBoxWidgetsPage::Reset()
 239 {
 240     m_chkRight->SetValue(false);
 241     m_radioKind->SetSelection(CheckboxKind_2State);
 242 }
 243
 244 void CheckBoxWidgetsPage::CreateCheckbox()
 245 {
 246     wxString label = m_checkbox->GetLabel();
 247
 248     size_t count = m_sizerCheckbox->GetChildren().GetCount();
 249     for ( size_t n = 0; n < count; n++ )
 250     {
 251         m_sizerCheckbox->Remove(0);
 252     }
 253
 254     delete m_checkbox;
 255
 256     int flags = ms_defaultFlags;
 257     if ( m_chkRight->IsChecked() )
 258         flags |= wxALIGN_RIGHT;
 259
 260     switch ( m_radioKind->GetSelection() )
 261     {
 262         default:
 263             wxFAIL_MSG(_T("unexpected radiobox selection"));
 264             // fall through
 265
 266         case CheckboxKind_2State:
 267             flags |= wxCHK_2STATE;
 268             break;
 269
 270         case CheckboxKind_3StateUser:
 271             flags |= wxCHK_ALLOW_3RD_STATE_FOR_USER;
 272             // fall through
 273
 274         case CheckboxKind_3State:
 275             flags |= wxCHK_3STATE;
 276             break;
 277     }
 278
 279     m_checkbox = new wxCheckBox(this, CheckboxPage_Checkbox, label,
 280                               wxDefaultPosition, wxDefaultSize,
 281                               flags);
 282
 283     m_sizerCheckbox->Add(0, 0, 1, wxCENTRE);
 284     m_sizerCheckbox->Add(m_checkbox, 1, wxCENTRE);
 285     m_sizerCheckbox->Add(0, 0, 1, wxCENTRE);
 286     m_sizerCheckbox->Layout();
 287 }
 288
 289 // ----------------------------------------------------------------------------
 290 // event handlers
 291 // ----------------------------------------------------------------------------
 292
 293 void CheckBoxWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 294 {
 295     Reset();
 296
 297     CreateCheckbox();
 298 }
 299
 300 void CheckBoxWidgetsPage::OnStyleChange(wxCommandEvent& WXUNUSED(event))
 301 {
 302     CreateCheckbox();
 303 }
 304
 305 void CheckBoxWidgetsPage::OnButtonChangeLabel(wxCommandEvent& WXUNUSED(event))
 306 {
 307     m_checkbox->SetLabel(m_textLabel->GetValue());
 308 }
 309
 310 void CheckBoxWidgetsPage::OnCheckBox(wxCommandEvent& event)
 311 {
 312     wxLogMessage(_T("Test checkbox %schecked (value = %d)."),
 313                  event.IsChecked() ? _T("") : _T("un"),
 314                  (int)m_checkbox->Get3StateValue());
 315 }
 316