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_chkSpecifyRows;
 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_chkSpecifyRows = (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_chkSpecifyRows = CreateCheckBoxAndAddToSizer
 217                        (
 218                         sizerLeft,
 219                         "Major specifies &rows count"
 220                        );
 221
 222     static const wxString layoutDir[] =
 223     {
 224         _T("default"),
 225         _T("left to right"),
 226         _T("top to bottom")
 227     };
 228
 229     m_radioDir = new wxRadioBox(this, wxID_ANY, _T("Numbering:"),
 230                                 wxDefaultPosition, wxDefaultSize,
 231                                 WXSIZEOF(layoutDir), layoutDir,
 232                                 1, wxRA_SPECIFY_COLS);
 233     sizerLeft->Add(m_radioDir, 0, wxGROW | wxALL, 5);
 234
 235     // if it's not defined, we can't change the radiobox direction
 236 #ifndef wxRA_LEFTTORIGHT
 237     m_radioDir->Disable();
 238 #endif // wxRA_LEFTTORIGHT
 239
 240     wxSizer *sizerRow;
 241     sizerRow = CreateSizerWithTextAndLabel(_T("&Major dimension:"),
 242                                            wxID_ANY,
 243                                            &m_textMajorDim);
 244     sizerLeft->Add(sizerRow, 0, wxGROW | wxALL, 5);
 245
 246     sizerRow = CreateSizerWithTextAndLabel(_T("&Number of buttons:"),
 247                                            wxID_ANY,
 248                                            &m_textNumBtns);
 249     sizerLeft->Add(sizerRow, 0, wxGROW | wxALL, 5);
 250
 251     wxButton *btn;
 252     btn = new wxButton(this, RadioPage_Update, _T("&Update"));
 253     sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 5);
 254
 255     sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
 256
 257     btn = new wxButton(this, RadioPage_Reset, _T("&Reset"));
 258     sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
 259
 260     // middle pane
 261     wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY, _T("&Change parameters"));
 262     wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
 263
 264     sizerRow = CreateSizerWithTextAndLabel(_T("Current selection:"),
 265                                            wxID_ANY,
 266                                            &m_textCurSel);
 267     sizerMiddle->Add(sizerRow, 0, wxGROW | wxALL, 5);
 268
 269     sizerRow = CreateSizerWithTextAndButton(RadioPage_Selection,
 270                                             _T("&Change selection:"),
 271                                            wxID_ANY,
 272                                            &m_textSel);
 273     sizerMiddle->Add(sizerRow, 0, wxGROW | wxALL, 5);
 274
 275     sizerRow = CreateSizerWithTextAndButton(RadioPage_Label,
 276                                             _T("&Label for box:"),
 277                                             wxID_ANY,
 278                                             &m_textLabel);
 279     sizerMiddle->Add(sizerRow, 0, wxGROW | wxALL, 5);
 280
 281     sizerRow = CreateSizerWithTextAndButton(RadioPage_LabelBtn,
 282                                             _T("&Label for buttons:"),
 283                                             wxID_ANY,
 284                                             &m_textLabelBtns);
 285     sizerMiddle->Add(sizerRow, 0, wxGROW | wxALL, 5);
 286
 287     m_chkEnableItem = CreateCheckBoxAndAddToSizer(sizerMiddle,
 288                                                   _T("Disable &2nd item"),
 289                                                   RadioPage_EnableItem);
 290     m_chkShowItem = CreateCheckBoxAndAddToSizer(sizerMiddle,
 291                                                 _T("Hide 2nd &item"),
 292                                                 RadioPage_ShowItem);
 293
 294     // right pane
 295     wxSizer *sizerRight = new wxBoxSizer(wxHORIZONTAL);
 296     sizerRight->SetMinSize(150, 0);
 297     m_sizerRadio = sizerRight; // save it to modify it later
 298
 299     Reset();
 300     CreateRadio();
 301
 302     // the 3 panes panes compose the window
 303     sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
 304     sizerTop->Add(sizerMiddle, 1, wxGROW | wxALL, 10);
 305     sizerTop->Add(sizerRight, 0, wxGROW | (wxALL & ~wxRIGHT), 10);
 306
 307     // final initializations
 308     SetSizer(sizerTop);
 309 }
 310
 311 // ----------------------------------------------------------------------------
 312 // operations
 313 // ----------------------------------------------------------------------------
 314
 315 void RadioWidgetsPage::Reset()
 316 {
 317     m_textMajorDim->SetValue(wxString::Format(_T("%u"), DEFAULT_MAJOR_DIM));
 318     m_textNumBtns->SetValue(wxString::Format(_T("%u"), DEFAULT_NUM_ENTRIES));
 319     m_textLabel->SetValue(_T("I'm a radiobox"));
 320     m_textLabelBtns->SetValue(_T("item"));
 321
 322     m_chkSpecifyRows->SetValue(false);
 323     m_chkEnableItem->SetValue(true);
 324     m_chkShowItem->SetValue(true);
 325     m_radioDir->SetSelection(RadioDir_Default);
 326 }
 327
 328 void RadioWidgetsPage::CreateRadio()
 329 {
 330     int sel;
 331     if ( m_radio )
 332     {
 333         sel = m_radio->GetSelection();
 334
 335         m_sizerRadio->Detach( m_radio );
 336
 337         delete m_radio;
 338     }
 339     else // first time creation, no old selection to preserve
 340     {
 341         sel = -1;
 342     }
 343
 344     unsigned long count;
 345     if ( !m_textNumBtns->GetValue().ToULong(&count) )
 346     {
 347         wxLogWarning(_T("Should have a valid number for number of items."));
 348
 349         // fall back to default
 350         count = DEFAULT_NUM_ENTRIES;
 351     }
 352
 353     unsigned long majorDim;
 354     if ( !m_textMajorDim->GetValue().ToULong(&majorDim) )
 355     {
 356         wxLogWarning(_T("Should have a valid major dimension number."));
 357
 358         // fall back to default
 359         majorDim = DEFAULT_MAJOR_DIM;
 360     }
 361
 362     wxString *items = new wxString[count];
 363
 364     wxString labelBtn = m_textLabelBtns->GetValue();
 365     for ( size_t n = 0; n < count; n++ )
 366     {
 367         items[n] = wxString::Format(_T("%s %lu"),
 368                                     labelBtn.c_str(), (unsigned long)n + 1);
 369     }
 370
 371     int flags = m_chkSpecifyRows->GetValue() ? wxRA_SPECIFY_ROWS
 372                                              : wxRA_SPECIFY_COLS;
 373
 374     flags |= ms_defaultFlags;
 375
 376 #ifdef wxRA_LEFTTORIGHT
 377     switch ( m_radioDir->GetSelection() )
 378     {
 379         default:
 380             wxFAIL_MSG( _T("unexpected wxRadioBox layout direction") );
 381             // fall through
 382
 383         case RadioDir_Default:
 384             break;
 385
 386         case RadioDir_LtoR:
 387             flags |= wxRA_LEFTTORIGHT;
 388             break;
 389
 390         case RadioDir_TtoB:
 391             flags |= wxRA_TOPTOBOTTOM;
 392             break;
 393     }
 394 #endif // wxRA_LEFTTORIGHT
 395
 396     m_radio = new wxRadioBox(this, RadioPage_Radio,
 397                              m_textLabel->GetValue(),
 398                              wxDefaultPosition, wxDefaultSize,
 399                              count, items,
 400                              majorDim,
 401                              flags);
 402
 403     delete [] items;
 404
 405     if ( sel >= 0 && (size_t)sel < count )
 406     {
 407         m_radio->SetSelection(sel);
 408     }
 409
 410     m_sizerRadio->Add(m_radio, 1, wxGROW);
 411     m_sizerRadio->Layout();
 412
 413     m_chkEnableItem->SetValue(true);
 414     m_chkEnableItem->SetValue(true);
 415 }
 416
 417 // ----------------------------------------------------------------------------
 418 // event handlers
 419 // ----------------------------------------------------------------------------
 420
 421 void RadioWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 422 {
 423     Reset();
 424
 425     CreateRadio();
 426 }
 427
 428 void RadioWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& WXUNUSED(event))
 429 {
 430     CreateRadio();
 431 }
 432
 433 void RadioWidgetsPage::OnRadioBox(wxCommandEvent& event)
 434 {
 435     int sel = m_radio->GetSelection();
 436     int event_sel = event.GetSelection();
 437     wxUnusedVar(event_sel);
 438
 439     wxLogMessage(_T("Radiobox selection changed, now %d"), sel);
 440
 441     wxASSERT_MSG( sel == event_sel,
 442                   _T("selection should be the same in event and radiobox") );
 443
 444     m_textCurSel->SetValue(wxString::Format(_T("%d"), sel));
 445 }
 446
 447 void RadioWidgetsPage::OnButtonRecreate(wxCommandEvent& WXUNUSED(event))
 448 {
 449     CreateRadio();
 450 }
 451
 452 void RadioWidgetsPage::OnButtonSetLabel(wxCommandEvent& WXUNUSED(event))
 453 {
 454     m_radio->wxControl::SetLabel(m_textLabel->GetValue());
 455 }
 456
 457 void RadioWidgetsPage::OnButtonSelection(wxCommandEvent& WXUNUSED(event))
 458 {
 459     unsigned long sel;
 460     if ( !m_textSel->GetValue().ToULong(&sel) ||
 461             (sel >= (size_t)m_radio->GetCount()) )
 462     {
 463         wxLogWarning(_T("Invalid number specified as new selection."));
 464     }
 465     else
 466     {
 467         m_radio->SetSelection(sel);
 468     }
 469 }
 470
 471 void RadioWidgetsPage::OnEnableItem(wxCommandEvent& event)
 472 {
 473     m_radio->Enable(TEST_BUTTON, event.IsChecked());
 474 }
 475
 476 void RadioWidgetsPage::OnShowItem(wxCommandEvent& event)
 477 {
 478     m_radio->Show(TEST_BUTTON, event.IsChecked());
 479 }
 480
 481 void RadioWidgetsPage::OnUpdateUIUpdate(wxUpdateUIEvent& event)
 482 {
 483     unsigned long n;
 484     event.Enable( m_textNumBtns->GetValue().ToULong(&n) &&
 485                   m_textMajorDim->GetValue().ToULong(&n) );
 486 }
 487
 488 void RadioWidgetsPage::OnUpdateUISelection(wxUpdateUIEvent& event)
 489 {
 490     unsigned long n;
 491     event.Enable( m_textSel->GetValue().ToULong(&n) &&
 492                    (n < (size_t)m_radio->GetCount()) );
 493 }
 494
 495 void RadioWidgetsPage::OnUpdateUIReset(wxUpdateUIEvent& event)
 496 {
 497     // only enable it if something is not set to default
 498     bool enable = m_chkSpecifyRows->GetValue();
 499
 500     if ( !enable )
 501     {
 502         unsigned long numEntries;
 503
 504         enable = !m_textNumBtns->GetValue().ToULong(&numEntries) ||
 505                     numEntries != DEFAULT_NUM_ENTRIES;
 506
 507         if ( !enable )
 508         {
 509             unsigned long majorDim;
 510
 511             enable = !m_textMajorDim->GetValue().ToULong(&majorDim) ||
 512                         majorDim != DEFAULT_MAJOR_DIM;
 513         }
 514     }
 515
 516     event.Enable(enable);
 517 }
 518
 519 void RadioWidgetsPage::OnUpdateUIEnableItem(wxUpdateUIEvent& event)
 520 {
 521     event.SetText(m_radio->IsItemEnabled(TEST_BUTTON) ? _T("Disable &2nd item")
 522                                                       : _T("Enable &2nd item"));
 523 }
 524
 525 void RadioWidgetsPage::OnUpdateUIShowItem(wxUpdateUIEvent& event)
 526 {
 527     event.SetText(m_radio->IsItemShown(TEST_BUTTON) ? _T("Hide 2nd &item")
 528                                                     : _T("Show 2nd &item"));
 529 }
 530
 531 #endif // wxUSE_RADIOBOX