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
 307 // ----------------------------------------------------------------------------
 308 // operations
 309 // ----------------------------------------------------------------------------
 310
 311 void RadioWidgetsPage::Reset()
 312 {
 313     m_textMajorDim->SetValue(wxString::Format(_T("%u"), DEFAULT_MAJOR_DIM));
 314     m_textNumBtns->SetValue(wxString::Format(_T("%u"), DEFAULT_NUM_ENTRIES));
 315     m_textLabel->SetValue(_T("I'm a radiobox"));
 316     m_textLabelBtns->SetValue(_T("item"));
 317
 318     m_chkVert->SetValue(false);
 319     m_chkEnableItem->SetValue(true);
 320     m_chkShowItem->SetValue(true);
 321     m_radioDir->SetSelection(RadioDir_Default);
 322 }
 323
 324 void RadioWidgetsPage::CreateRadio()
 325 {
 326     int sel;
 327     if ( m_radio )
 328     {
 329         sel = m_radio->GetSelection();
 330
 331         m_sizerRadio->Detach( m_radio );
 332
 333         delete m_radio;
 334     }
 335     else // first time creation, no old selection to preserve
 336     {
 337         sel = -1;
 338     }
 339
 340     unsigned long count;
 341     if ( !m_textNumBtns->GetValue().ToULong(&count) )
 342     {
 343         wxLogWarning(_T("Should have a valid number for number of items."));
 344
 345         // fall back to default
 346         count = DEFAULT_NUM_ENTRIES;
 347     }
 348
 349     unsigned long majorDim;
 350     if ( !m_textMajorDim->GetValue().ToULong(&majorDim) )
 351     {
 352         wxLogWarning(_T("Should have a valid major dimension number."));
 353
 354         // fall back to default
 355         majorDim = DEFAULT_MAJOR_DIM;
 356     }
 357
 358     wxString *items = new wxString[count];
 359
 360     wxString labelBtn = m_textLabelBtns->GetValue();
 361     for ( size_t n = 0; n < count; n++ )
 362     {
 363         items[n] = wxString::Format(_T("%s %lu"),
 364                                     labelBtn.c_str(), (unsigned long)n + 1);
 365     }
 366
 367     int flags = m_chkVert->GetValue() ? wxRA_VERTICAL
 368                                       : wxRA_HORIZONTAL;
 369
 370     flags |= ms_defaultFlags;
 371
 372 #ifdef wxRA_LEFTTORIGHT
 373     switch ( m_radioDir->GetSelection() )
 374     {
 375         default:
 376             wxFAIL_MSG( _T("unexpected wxRadioBox layout direction") );
 377             // fall through
 378
 379         case RadioDir_Default:
 380             break;
 381
 382         case RadioDir_LtoR:
 383             flags |= wxRA_LEFTTORIGHT;
 384             break;
 385
 386         case RadioDir_TtoB:
 387             flags |= wxRA_TOPTOBOTTOM;
 388             break;
 389     }
 390 #endif // wxRA_LEFTTORIGHT
 391
 392     m_radio = new wxRadioBox(this, RadioPage_Radio,
 393                              m_textLabel->GetValue(),
 394                              wxDefaultPosition, wxDefaultSize,
 395                              count, items,
 396                              majorDim,
 397                              flags);
 398
 399     delete [] items;
 400
 401     if ( sel >= 0 && (size_t)sel < count )
 402     {
 403         m_radio->SetSelection(sel);
 404     }
 405
 406     m_sizerRadio->Add(m_radio, 1, wxGROW);
 407     m_sizerRadio->Layout();
 408
 409     m_chkEnableItem->SetValue(true);
 410     m_chkEnableItem->SetValue(true);
 411 }
 412
 413 // ----------------------------------------------------------------------------
 414 // event handlers
 415 // ----------------------------------------------------------------------------
 416
 417 void RadioWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 418 {
 419     Reset();
 420
 421     CreateRadio();
 422 }
 423
 424 void RadioWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& WXUNUSED(event))
 425 {
 426     CreateRadio();
 427 }
 428
 429 void RadioWidgetsPage::OnRadioBox(wxCommandEvent& event)
 430 {
 431     int sel = m_radio->GetSelection();
 432     int event_sel = event.GetSelection();
 433     wxUnusedVar(event_sel);
 434
 435     wxLogMessage(_T("Radiobox selection changed, now %d"), sel);
 436
 437     wxASSERT_MSG( sel == event_sel,
 438                   _T("selection should be the same in event and radiobox") );
 439
 440     m_textCurSel->SetValue(wxString::Format(_T("%d"), sel));
 441 }
 442
 443 void RadioWidgetsPage::OnButtonRecreate(wxCommandEvent& WXUNUSED(event))
 444 {
 445     CreateRadio();
 446 }
 447
 448 void RadioWidgetsPage::OnButtonSetLabel(wxCommandEvent& WXUNUSED(event))
 449 {
 450     m_radio->wxControl::SetLabel(m_textLabel->GetValue());
 451 }
 452
 453 void RadioWidgetsPage::OnButtonSelection(wxCommandEvent& WXUNUSED(event))
 454 {
 455     unsigned long sel;
 456     if ( !m_textSel->GetValue().ToULong(&sel) ||
 457             (sel >= (size_t)m_radio->GetCount()) )
 458     {
 459         wxLogWarning(_T("Invalid number specified as new selection."));
 460     }
 461     else
 462     {
 463         m_radio->SetSelection(sel);
 464     }
 465 }
 466
 467 void RadioWidgetsPage::OnEnableItem(wxCommandEvent& event)
 468 {
 469     m_radio->Enable(TEST_BUTTON, event.IsChecked());
 470 }
 471
 472 void RadioWidgetsPage::OnShowItem(wxCommandEvent& event)
 473 {
 474     m_radio->Show(TEST_BUTTON, event.IsChecked());
 475 }
 476
 477 void RadioWidgetsPage::OnUpdateUIUpdate(wxUpdateUIEvent& event)
 478 {
 479     unsigned long n;
 480     event.Enable( m_textNumBtns->GetValue().ToULong(&n) &&
 481                   m_textMajorDim->GetValue().ToULong(&n) );
 482 }
 483
 484 void RadioWidgetsPage::OnUpdateUISelection(wxUpdateUIEvent& event)
 485 {
 486     unsigned long n;
 487     event.Enable( m_textSel->GetValue().ToULong(&n) &&
 488                    (n < (size_t)m_radio->GetCount()) );
 489 }
 490
 491 void RadioWidgetsPage::OnUpdateUIReset(wxUpdateUIEvent& event)
 492 {
 493     // only enable it if something is not set to default
 494     bool enable = m_chkVert->GetValue();
 495
 496     if ( !enable )
 497     {
 498         unsigned long numEntries;
 499
 500         enable = !m_textNumBtns->GetValue().ToULong(&numEntries) ||
 501                     numEntries != DEFAULT_NUM_ENTRIES;
 502
 503         if ( !enable )
 504         {
 505             unsigned long majorDim;
 506
 507             enable = !m_textMajorDim->GetValue().ToULong(&majorDim) ||
 508                         majorDim != DEFAULT_MAJOR_DIM;
 509         }
 510     }
 511
 512     event.Enable(enable);
 513 }
 514
 515 void RadioWidgetsPage::OnUpdateUIEnableItem(wxUpdateUIEvent& event)
 516 {
 517     event.SetText(m_radio->IsItemEnabled(TEST_BUTTON) ? _T("Disable &2nd item")
 518                                                       : _T("Enable &2nd item"));
 519 }
 520
 521 void RadioWidgetsPage::OnUpdateUIShowItem(wxUpdateUIEvent& event)
 522 {
 523     event.SetText(m_radio->IsItemShown(TEST_BUTTON) ? _T("Hide 2nd &item")
 524                                                     : _T("Show 2nd &item"));
 525 }
 526
 527 #endif // wxUSE_RADIOBOX