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