samples/widgets/radiobox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Program:     wxWidgets Widgets Sample
   3 // Name:        radiobox.cpp
   4 // Purpose:     Part of the widgets sample showing wxRadioBox
   5 // Author:      Vadim Zeitlin
   6 // Created:     15.04.01
   7 // Id:          $Id$
   8 // Copyright:   (c) 2001 Vadim Zeitlin
   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 #if wxUSE_RADIOBOX
  28
  29 // for all others, include the necessary headers
  30 #ifndef WX_PRECOMP
  31     #include "wx/log.h"
  32
  33     #include "wx/bitmap.h"
  34     #include "wx/button.h"
  35     #include "wx/checkbox.h"
  36     #include "wx/radiobox.h"
  37     #include "wx/statbox.h"
  38     #include "wx/textctrl.h"
  39 #endif
  40
  41 #include "wx/sizer.h"
  42
  43 #include "widgets.h"
  44
  45 #include "icons/radiobox.xpm"
  46
  47 // ----------------------------------------------------------------------------
  48 // constants
  49 // ----------------------------------------------------------------------------
  50
  51 // control ids
  52 enum
  53 {
  54     RadioPage_Reset = wxID_HIGHEST,
  55     RadioPage_Update,
  56     RadioPage_Selection,
  57     RadioPage_Label,
  58     RadioPage_LabelBtn,
  59     RadioPage_EnableItem,
  60     RadioPage_ShowItem,
  61     RadioPage_Radio
  62 };
  63
  64 // layout direction radiobox selections
  65 enum
  66 {
  67     RadioDir_Default,
  68     RadioDir_LtoR,
  69     RadioDir_TtoB
  70 };
  71
  72 // default values for the number of radiobox items
  73 static const unsigned int DEFAULT_NUM_ENTRIES = 12;
  74 static const unsigned int DEFAULT_MAJOR_DIM = 3;
  75
  76 // this item is enabled/disabled shown/hidden by the test checkboxes
  77 static const int TEST_BUTTON = 1;
  78
  79 // ----------------------------------------------------------------------------
  80 // RadioWidgetsPage
  81 // ----------------------------------------------------------------------------
  82
  83 class RadioWidgetsPage : public WidgetsPage
  84 {
  85 public:
  86     RadioWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist);
  87     virtual ~RadioWidgetsPage(){};
  88
  89     virtual wxControl *GetWidget() const { return m_radio; }
  90     virtual void RecreateWidget() { CreateRadio(); }
  91
  92     // lazy creation of the content
  93     virtual void CreateContent();
  94
  95 protected:
  96     // event handlers
  97     void OnCheckOrRadioBox(wxCommandEvent& event);
  98     void OnRadioBox(wxCommandEvent& event);
  99
 100     void OnButtonReset(wxCommandEvent& event);
 101     void OnButtonRecreate(wxCommandEvent& event);
 102
 103     void OnButtonSelection(wxCommandEvent& event);
 104     void OnButtonSetLabel(wxCommandEvent& event);
 105
 106     void OnEnableItem(wxCommandEvent& event);
 107     void OnShowItem(wxCommandEvent& event);
 108
 109     void OnUpdateUIReset(wxUpdateUIEvent& event);
 110     void OnUpdateUIUpdate(wxUpdateUIEvent& event);
 111     void OnUpdateUISelection(wxUpdateUIEvent& event);
 112     void OnUpdateUIEnableItem(wxUpdateUIEvent& event);
 113     void OnUpdateUIShowItem(wxUpdateUIEvent& event);
 114
 115     // reset the wxRadioBox parameters
 116     void Reset();
 117
 118     // (re)create the wxRadioBox
 119     void CreateRadio();
 120
 121     // the controls
 122     // ------------
 123
 124     // the check/radio boxes for styles
 125     wxCheckBox *m_chkVert;
 126     wxCheckBox *m_chkEnableItem;
 127     wxCheckBox *m_chkShowItem;
 128     wxRadioBox *m_radioDir;
 129
 130     // the gauge itself and the sizer it is in
 131     wxRadioBox *m_radio;
 132     wxSizer *m_sizerRadio;
 133
 134     // the text entries for command parameters
 135     wxTextCtrl *m_textNumBtns,
 136                *m_textMajorDim,
 137                *m_textCurSel,
 138                *m_textSel,
 139                *m_textLabel,
 140                *m_textLabelBtns;
 141
 142 private:
 143     DECLARE_EVENT_TABLE()
 144     DECLARE_WIDGETS_PAGE(RadioWidgetsPage)
 145 };
 146
 147 // ----------------------------------------------------------------------------
 148 // event tables
 149 // ----------------------------------------------------------------------------
 150
 151 BEGIN_EVENT_TABLE(RadioWidgetsPage, WidgetsPage)
 152     EVT_BUTTON(RadioPage_Reset, RadioWidgetsPage::OnButtonReset)
 153
 154     EVT_BUTTON(RadioPage_Update, RadioWidgetsPage::OnButtonRecreate)
 155     EVT_BUTTON(RadioPage_LabelBtn, RadioWidgetsPage::OnButtonRecreate)
 156
 157     EVT_BUTTON(RadioPage_Selection, RadioWidgetsPage::OnButtonSelection)
 158     EVT_BUTTON(RadioPage_Label, RadioWidgetsPage::OnButtonSetLabel)
 159
 160     EVT_UPDATE_UI(RadioPage_Update, RadioWidgetsPage::OnUpdateUIUpdate)
 161     EVT_UPDATE_UI(RadioPage_Selection, RadioWidgetsPage::OnUpdateUISelection)
 162
 163     EVT_RADIOBOX(RadioPage_Radio, RadioWidgetsPage::OnRadioBox)
 164
 165     EVT_CHECKBOX(RadioPage_EnableItem, RadioWidgetsPage::OnEnableItem)
 166     EVT_CHECKBOX(RadioPage_ShowItem, RadioWidgetsPage::OnShowItem)
 167
 168     EVT_UPDATE_UI(RadioPage_EnableItem, RadioWidgetsPage::OnUpdateUIEnableItem)
 169     EVT_UPDATE_UI(RadioPage_ShowItem, RadioWidgetsPage::OnUpdateUIShowItem)
 170
 171     EVT_CHECKBOX(wxID_ANY, RadioWidgetsPage::OnCheckOrRadioBox)
 172     EVT_RADIOBOX(wxID_ANY, RadioWidgetsPage::OnCheckOrRadioBox)
 173 END_EVENT_TABLE()
 174
 175 // ============================================================================
 176 // implementation
 177 // ============================================================================
 178
 179 #if defined(__WXUNIVERSAL__)
 180     #define FAMILY_CTRLS UNIVERSAL_CTRLS
 181 #else
 182     #define FAMILY_CTRLS NATIVE_CTRLS
 183 #endif
 184
 185 IMPLEMENT_WIDGETS_PAGE(RadioWidgetsPage, _T("Radio"),
 186                        FAMILY_CTRLS | WITH_ITEMS_CTRLS
 187                        );
 188
 189 RadioWidgetsPage::RadioWidgetsPage(WidgetsBookCtrl *book,
 190                                    wxImageList *imaglist)
 191                   : WidgetsPage(book, imaglist, radio_xpm)
 192 {
 193     // init everything
 194     m_chkVert = (wxCheckBox *)NULL;
 195     m_chkEnableItem = (wxCheckBox *)NULL;
 196     m_chkShowItem = (wxCheckBox *)NULL;
 197
 198     m_textNumBtns =
 199     m_textLabelBtns =
 200     m_textLabel = (wxTextCtrl *)NULL;
 201
 202     m_radio =
 203     m_radioDir = (wxRadioBox *)NULL;
 204     m_sizerRadio = (wxSizer *)NULL;
 205 }
 206
 207 void RadioWidgetsPage::CreateContent()
 208 {
 209     wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
 210
 211     // left pane
 212     wxStaticBox *box = new wxStaticBox(this, wxID_ANY, _T("&Set style"));
 213
 214     wxSizer *sizerLeft = new wxStaticBoxSizer(box, wxVERTICAL);
 215
 216     m_chkVert = CreateCheckBoxAndAddToSizer(sizerLeft, _T("&Vertical layout"));
 217
 218     static const wxString layoutDir[] =
 219     {
 220         _T("default"),
 221         _T("left to right"),
 222         _T("top to bottom")
 223     };
 224
 225     m_radioDir = new wxRadioBox(this, wxID_ANY, _T("Numbering:"),
 226                                 wxDefaultPosition, wxDefaultSize,
 227                                 WXSIZEOF(layoutDir), layoutDir,
 228                                 1, wxRA_SPECIFY_COLS);
 229     sizerLeft->Add(m_radioDir, 0, wxGROW | wxALL, 5);
 230
 231     // if it's not defined, we can't change the radiobox direction
 232 #ifndef wxRA_LEFTTORIGHT
 233     m_radioDir->Disable();
 234 #endif // wxRA_LEFTTORIGHT
 235
 236     wxSizer *sizerRow;
 237     sizerRow = CreateSizerWithTextAndLabel(_T("&Major dimension:"),
 238                                            wxID_ANY,
 239                                            &m_textMajorDim);
 240     sizerLeft->Add(sizerRow, 0, wxGROW | wxALL, 5);
 241
 242     sizerRow = CreateSizerWithTextAndLabel(_T("&Number of buttons:"),
 243                                            wxID_ANY,
 244                                            &m_textNumBtns);
 245     sizerLeft->Add(sizerRow, 0, wxGROW | wxALL, 5);
 246
 247     wxButton *btn;
 248     btn = new wxButton(this, RadioPage_Update, _T("&Update"));
 249     sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 5);
 250
 251     sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
 252
 253     btn = new wxButton(this, RadioPage_Reset, _T("&Reset"));
 254     sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
 255
 256     // middle pane
 257     wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY, _T("&Change parameters"));
 258     wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
 259
 260     sizerRow = CreateSizerWithTextAndLabel(_T("Current selection:"),
 261                                            wxID_ANY,
 262                                            &m_textCurSel);
 263     sizerMiddle->Add(sizerRow, 0, wxGROW | wxALL, 5);
 264
 265     sizerRow = CreateSizerWithTextAndButton(RadioPage_Selection,
 266                                             _T("&Change selection:"),
 267                                            wxID_ANY,
 268                                            &m_textSel);
 269     sizerMiddle->Add(sizerRow, 0, wxGROW | wxALL, 5);
 270
 271     sizerRow = CreateSizerWithTextAndButton(RadioPage_Label,
 272                                             _T("&Label for box:"),
 273                                             wxID_ANY,
 274                                             &m_textLabel);
 275     sizerMiddle->Add(sizerRow, 0, wxGROW | wxALL, 5);
 276
 277     sizerRow = CreateSizerWithTextAndButton(RadioPage_LabelBtn,
 278                                             _T("&Label for buttons:"),
 279                                             wxID_ANY,
 280                                             &m_textLabelBtns);
 281     sizerMiddle->Add(sizerRow, 0, wxGROW | wxALL, 5);
 282
 283     m_chkEnableItem = CreateCheckBoxAndAddToSizer(sizerMiddle,
 284                                                   _T("Disable &2nd item"),
 285                                                   RadioPage_EnableItem);
 286     m_chkShowItem = CreateCheckBoxAndAddToSizer(sizerMiddle,
 287                                                 _T("Hide 2nd &item"),
 288                                                 RadioPage_ShowItem);
 289
 290     // right pane
 291     wxSizer *sizerRight = new wxBoxSizer(wxHORIZONTAL);
 292     sizerRight->SetMinSize(150, 0);
 293     m_sizerRadio = sizerRight; // save it to modify it later
 294
 295     Reset();
 296     CreateRadio();
 297
 298     // the 3 panes panes compose the window
 299     sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
 300     sizerTop->Add(sizerMiddle, 1, wxGROW | wxALL, 10);
 301     sizerTop->Add(sizerRight, 0, wxGROW | (wxALL & ~wxRIGHT), 10);
 302
 303     // final initializations
 304     SetSizer(sizerTop);
 305
 306     sizerTop->Fit(this);
 307 }
 308
 309 // ----------------------------------------------------------------------------
 310 // operations
 311 // ----------------------------------------------------------------------------
 312
 313 void RadioWidgetsPage::Reset()
 314 {
 315     m_textMajorDim->SetValue(wxString::Format(_T("%u"), DEFAULT_MAJOR_DIM));
 316     m_textNumBtns->SetValue(wxString::Format(_T("%u"), DEFAULT_NUM_ENTRIES));
 317     m_textLabel->SetValue(_T("I'm a radiobox"));
 318     m_textLabelBtns->SetValue(_T("item"));
 319
 320     m_chkVert->SetValue(false);
 321     m_chkEnableItem->SetValue(true);
 322     m_chkShowItem->SetValue(true);
 323     m_radioDir->SetSelection(RadioDir_Default);
 324 }
 325
 326 void RadioWidgetsPage::CreateRadio()
 327 {
 328     int sel;
 329     if ( m_radio )
 330     {
 331         sel = m_radio->GetSelection();
 332
 333         m_sizerRadio->Detach( m_radio );
 334
 335         delete m_radio;
 336     }
 337     else // first time creation, no old selection to preserve
 338     {
 339         sel = -1;
 340     }
 341
 342     unsigned long count;
 343     if ( !m_textNumBtns->GetValue().ToULong(&count) )
 344     {
 345         wxLogWarning(_T("Should have a valid number for number of items."));
 346
 347         // fall back to default
 348         count = DEFAULT_NUM_ENTRIES;
 349     }
 350
 351     unsigned long majorDim;
 352     if ( !m_textMajorDim->GetValue().ToULong(&majorDim) )
 353     {
 354         wxLogWarning(_T("Should have a valid major dimension number."));
 355
 356         // fall back to default
 357         majorDim = DEFAULT_MAJOR_DIM;
 358     }
 359
 360     wxString *items = new wxString[count];
 361
 362     wxString labelBtn = m_textLabelBtns->GetValue();
 363     for ( size_t n = 0; n < count; n++ )
 364     {
 365         items[n] = wxString::Format(_T("%s %lu"),
 366                                     labelBtn.c_str(), (unsigned long)n + 1);
 367     }
 368
 369     int flags = m_chkVert->GetValue() ? wxRA_VERTICAL
 370                                       : wxRA_HORIZONTAL;
 371
 372     flags |= ms_defaultFlags;
 373
 374 #ifdef wxRA_LEFTTORIGHT
 375     switch ( m_radioDir->GetSelection() )
 376     {
 377         default:
 378             wxFAIL_MSG( _T("unexpected wxRadioBox layout direction") );
 379             // fall through
 380
 381         case RadioDir_Default:
 382             break;
 383
 384         case RadioDir_LtoR:
 385             flags |= wxRA_LEFTTORIGHT;
 386             break;
 387
 388         case RadioDir_TtoB:
 389             flags |= wxRA_TOPTOBOTTOM;
 390             break;
 391     }
 392 #endif // wxRA_LEFTTORIGHT
 393
 394     m_radio = new wxRadioBox(this, RadioPage_Radio,
 395                              m_textLabel->GetValue(),
 396                              wxDefaultPosition, wxDefaultSize,
 397                              count, items,
 398                              majorDim,
 399                              flags);
 400
 401     delete [] items;
 402
 403     if ( sel >= 0 && (size_t)sel < count )
 404     {
 405         m_radio->SetSelection(sel);
 406     }
 407
 408     m_sizerRadio->Add(m_radio, 1, wxGROW);
 409     m_sizerRadio->Layout();
 410
 411     m_chkEnableItem->SetValue(true);
 412     m_chkEnableItem->SetValue(true);
 413 }
 414
 415 // ----------------------------------------------------------------------------
 416 // event handlers
 417 // ----------------------------------------------------------------------------
 418
 419 void RadioWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 420 {
 421     Reset();
 422
 423     CreateRadio();
 424 }
 425
 426 void RadioWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& WXUNUSED(event))
 427 {
 428     CreateRadio();
 429 }
 430
 431 void RadioWidgetsPage::OnRadioBox(wxCommandEvent& event)
 432 {
 433     int sel = m_radio->GetSelection();
 434     int event_sel = event.GetSelection();
 435     wxUnusedVar(event_sel);
 436
 437     wxLogMessage(_T("Radiobox selection changed, now %d"), sel);
 438
 439     wxASSERT_MSG( sel == event_sel,
 440                   _T("selection should be the same in event and radiobox") );
 441
 442     m_textCurSel->SetValue(wxString::Format(_T("%d"), sel));
 443 }
 444
 445 void RadioWidgetsPage::OnButtonRecreate(wxCommandEvent& WXUNUSED(event))
 446 {
 447     CreateRadio();
 448 }
 449
 450 void RadioWidgetsPage::OnButtonSetLabel(wxCommandEvent& WXUNUSED(event))
 451 {
 452     m_radio->wxControl::SetLabel(m_textLabel->GetValue());
 453 }
 454
 455 void RadioWidgetsPage::OnButtonSelection(wxCommandEvent& WXUNUSED(event))
 456 {
 457     unsigned long sel;
 458     if ( !m_textSel->GetValue().ToULong(&sel) ||
 459             (sel >= (size_t)m_radio->GetCount()) )
 460     {
 461         wxLogWarning(_T("Invalid number specified as new selection."));
 462     }
 463     else
 464     {
 465         m_radio->SetSelection(sel);
 466     }
 467 }
 468
 469 void RadioWidgetsPage::OnEnableItem(wxCommandEvent& event)
 470 {
 471     m_radio->Enable(TEST_BUTTON, event.IsChecked());
 472 }
 473
 474 void RadioWidgetsPage::OnShowItem(wxCommandEvent& event)
 475 {
 476     m_radio->Show(TEST_BUTTON, event.IsChecked());
 477 }
 478
 479 void RadioWidgetsPage::OnUpdateUIUpdate(wxUpdateUIEvent& event)
 480 {
 481     unsigned long n;
 482     event.Enable( m_textNumBtns->GetValue().ToULong(&n) &&
 483                   m_textMajorDim->GetValue().ToULong(&n) );
 484 }
 485
 486 void RadioWidgetsPage::OnUpdateUISelection(wxUpdateUIEvent& event)
 487 {
 488     unsigned long n;
 489     event.Enable( m_textSel->GetValue().ToULong(&n) &&
 490                    (n < (size_t)m_radio->GetCount()) );
 491 }
 492
 493 void RadioWidgetsPage::OnUpdateUIReset(wxUpdateUIEvent& event)
 494 {
 495     // only enable it if something is not set to default
 496     bool enable = m_chkVert->GetValue();
 497
 498     if ( !enable )
 499     {
 500         unsigned long numEntries;
 501
 502         enable = !m_textNumBtns->GetValue().ToULong(&numEntries) ||
 503                     numEntries != DEFAULT_NUM_ENTRIES;
 504
 505         if ( !enable )
 506         {
 507             unsigned long majorDim;
 508
 509             enable = !m_textMajorDim->GetValue().ToULong(&majorDim) ||
 510                         majorDim != DEFAULT_MAJOR_DIM;
 511         }
 512     }
 513
 514     event.Enable(enable);
 515 }
 516
 517 void RadioWidgetsPage::OnUpdateUIEnableItem(wxUpdateUIEvent& event)
 518 {
 519     event.SetText(m_radio->IsItemEnabled(TEST_BUTTON) ? _T("Disable &2nd item")
 520                                                       : _T("Enable &2nd item"));
 521 }
 522
 523 void RadioWidgetsPage::OnUpdateUIShowItem(wxUpdateUIEvent& event)
 524 {
 525     event.SetText(m_radio->IsItemShown(TEST_BUTTON) ? _T("Hide 2nd &item")
 526                                                     : _T("Show 2nd &item"));
 527 }
 528
 529 #endif // wxUSE_RADIOBOX