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 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 #if defined(__WXUNIVERSAL__)
 152     #define FAMILY_CTRLS UNIVERSAL_CTRLS
 153 #else
 154     #define FAMILY_CTRLS NATIVE_CTRLS
 155 #endif
 156
 157 IMPLEMENT_WIDGETS_PAGE(CheckBoxWidgetsPage, wxT("CheckBox"), FAMILY_CTRLS );
 158
 159 CheckBoxWidgetsPage::CheckBoxWidgetsPage(WidgetsBookCtrl *book,
 160                                          wxImageList *imaglist)
 161                   : WidgetsPage(book, imaglist, checkbox_xpm)
 162 {
 163     wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
 164
 165     // left pane
 166     wxStaticBox *box = new wxStaticBox(this, wxID_ANY, _T("&Set style"));
 167
 168     wxSizer *sizerLeft = new wxStaticBoxSizer(box, wxVERTICAL);
 169
 170     m_chkRight = CreateCheckBoxAndAddToSizer
 171                  (
 172                     sizerLeft,
 173                     _T("&Right aligned"),
 174                     CheckboxPage_ChkRight
 175                  );
 176
 177     sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
 178
 179     static const wxString kinds[] =
 180     {
 181         _T("usual &2-state checkbox"),
 182         _T("&3rd state settable by program"),
 183         _T("&user-settable 3rd state"),
 184     };
 185
 186     m_radioKind = new wxRadioBox(this, wxID_ANY, _T("&Kind"),
 187                                  wxDefaultPosition, wxDefaultSize,
 188                                  WXSIZEOF(kinds), kinds,
 189                                  1);
 190     sizerLeft->Add(m_radioKind, 0, wxGROW | wxALL, 5);
 191     wxButton *btn = new wxButton(this, CheckboxPage_Reset, _T("&Reset"));
 192     sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
 193
 194     // middle pane
 195     wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY, _T("&Operations"));
 196     wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
 197
 198     sizerMiddle->Add(CreateSizerWithTextAndButton(CheckboxPage_ChangeLabel,
 199                                                      _T("Change label"),
 200                                                      wxID_ANY,
 201                                                      &m_textLabel),
 202                      0, wxALL | wxGROW, 5);
 203     sizerMiddle->Add(new wxButton(this, CheckboxPage_Check, _T("&Check it")),
 204                      0, wxALL | wxGROW, 5);
 205     sizerMiddle->Add(new wxButton(this, CheckboxPage_Uncheck, _T("&Uncheck it")),
 206                      0, wxALL | wxGROW, 5);
 207     sizerMiddle->Add(new wxButton(this, CheckboxPage_PartCheck,
 208                                   _T("Put in &3rd state")),
 209                      0, wxALL | wxGROW, 5);
 210
 211     // right pane
 212     wxSizer *sizerRight = new wxBoxSizer(wxHORIZONTAL);
 213     m_checkbox = new wxCheckBox(this, CheckboxPage_Checkbox, _T("&Check me!"));
 214     sizerRight->Add(0, 0, 1, wxCENTRE);
 215     sizerRight->Add(m_checkbox, 1, wxCENTRE);
 216     sizerRight->Add(0, 0, 1, wxCENTRE);
 217     sizerRight->SetMinSize(150, 0);
 218     m_sizerCheckbox = sizerRight; // save it to modify it later
 219
 220     // the 3 panes panes compose the window
 221     sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
 222     sizerTop->Add(sizerMiddle, 1, wxGROW | wxALL, 10);
 223     sizerTop->Add(sizerRight, 1, wxGROW | (wxALL & ~wxRIGHT), 10);
 224
 225     // final initializations
 226     Reset();
 227
 228     SetSizer(sizerTop);
 229
 230     sizerTop->Fit(this);
 231 }
 232
 233 void CheckBoxWidgetsPage::Reset()
 234 {
 235     m_chkRight->SetValue(false);
 236     m_radioKind->SetSelection(CheckboxKind_2State);
 237 }
 238
 239 void CheckBoxWidgetsPage::CreateCheckbox()
 240 {
 241     wxString label = m_checkbox->GetLabel();
 242
 243     size_t count = m_sizerCheckbox->GetChildren().GetCount();
 244     for ( size_t n = 0; n < count; n++ )
 245     {
 246         m_sizerCheckbox->Remove(0);
 247     }
 248
 249     delete m_checkbox;
 250
 251     int flags = ms_defaultFlags;
 252     if ( m_chkRight->IsChecked() )
 253         flags |= wxALIGN_RIGHT;
 254
 255     switch ( m_radioKind->GetSelection() )
 256     {
 257         default:
 258             wxFAIL_MSG(_T("unexpected radiobox selection"));
 259             // fall through
 260
 261         case CheckboxKind_2State:
 262             flags |= wxCHK_2STATE;
 263             break;
 264
 265         case CheckboxKind_3StateUser:
 266             flags |= wxCHK_ALLOW_3RD_STATE_FOR_USER;
 267             // fall through
 268
 269         case CheckboxKind_3State:
 270             flags |= wxCHK_3STATE;
 271             break;
 272     }
 273
 274     m_checkbox = new wxCheckBox(this, CheckboxPage_Checkbox, label,
 275                               wxDefaultPosition, wxDefaultSize,
 276                               flags);
 277
 278     m_sizerCheckbox->Add(0, 0, 1, wxCENTRE);
 279     m_sizerCheckbox->Add(m_checkbox, 1, wxCENTRE);
 280     m_sizerCheckbox->Add(0, 0, 1, wxCENTRE);
 281     m_sizerCheckbox->Layout();
 282 }
 283
 284 // ----------------------------------------------------------------------------
 285 // event handlers
 286 // ----------------------------------------------------------------------------
 287
 288 void CheckBoxWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 289 {
 290     Reset();
 291
 292     CreateCheckbox();
 293 }
 294
 295 void CheckBoxWidgetsPage::OnStyleChange(wxCommandEvent& WXUNUSED(event))
 296 {
 297     CreateCheckbox();
 298 }
 299
 300 void CheckBoxWidgetsPage::OnButtonChangeLabel(wxCommandEvent& WXUNUSED(event))
 301 {
 302     m_checkbox->SetLabel(m_textLabel->GetValue());
 303 }
 304
 305 void CheckBoxWidgetsPage::OnCheckBox(wxCommandEvent& event)
 306 {
 307     wxLogMessage(_T("Test checkbox %schecked (value = %d)."),
 308                  event.IsChecked() ? _T("") : _T("un"),
 309                  (int)m_checkbox->Get3StateValue());
 310 }
 311