samples/widgets/combobox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Program:     wxWidgets Widgets Sample
   3 // Name:        combobox.cpp
   4 // Purpose:     Part of the widgets sample showing wxComboBox
   5 // Author:      Vadim Zeitlin
   6 // Created:     27.03.01
   7 // Id:          $Id$
   8 // Copyright:   (c) 2001 Vadim Zeitlin
   9 // Licence:     wxWindows licence
  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_COMBOBOX
  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/combobox.h"
  37     #include "wx/radiobox.h"
  38     #include "wx/statbox.h"
  39     #include "wx/textctrl.h"
  40 #endif
  41
  42 #include "wx/sizer.h"
  43
  44 #include "itemcontainer.h"
  45 #include "widgets.h"
  46 #include "icons/combobox.xpm"
  47
  48 // ----------------------------------------------------------------------------
  49 // constants
  50 // ----------------------------------------------------------------------------
  51
  52 // control ids
  53 enum
  54 {
  55     ComboPage_Reset = wxID_HIGHEST,
  56     ComboPage_Popup,
  57     ComboPage_Dismiss,
  58     ComboPage_SetCurrent,
  59     ComboPage_CurText,
  60     ComboPage_InsertionPointText,
  61     ComboPage_Insert,
  62     ComboPage_InsertText,
  63     ComboPage_Add,
  64     ComboPage_AddText,
  65     ComboPage_SetFirst,
  66     ComboPage_SetFirstText,
  67     ComboPage_AddSeveral,
  68     ComboPage_AddMany,
  69     ComboPage_Clear,
  70     ComboPage_Change,
  71     ComboPage_ChangeText,
  72     ComboPage_Delete,
  73     ComboPage_DeleteText,
  74     ComboPage_DeleteSel,
  75     ComboPage_SetValue,
  76     ComboPage_SetValueText,
  77     ComboPage_Combo,
  78     ComboPage_ContainerTests
  79 };
  80
  81 // kinds of comboboxes
  82 enum
  83 {
  84     ComboKind_Default,
  85     ComboKind_Simple,
  86     ComboKind_DropDown
  87 };
  88
  89 // ----------------------------------------------------------------------------
  90 // ComboboxWidgetsPage
  91 // ----------------------------------------------------------------------------
  92
  93 class ComboboxWidgetsPage : public ItemContainerWidgetsPage
  94 {
  95 public:
  96     ComboboxWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist);
  97
  98     virtual wxControl *GetWidget() const { return m_combobox; }
  99     virtual wxTextEntryBase *GetTextEntry() const { return m_combobox; }
 100     virtual wxItemContainer* GetContainer() const { return m_combobox; }
 101     virtual void RecreateWidget() { CreateCombo(); }
 102
 103     // lazy creation of the content
 104     virtual void CreateContent();
 105
 106 protected:
 107     // event handlers
 108     void OnButtonReset(wxCommandEvent& event);
 109     void OnButtonPopup(wxCommandEvent&) { m_combobox->Popup(); }
 110     void OnButtonDismiss(wxCommandEvent&) { m_combobox->Dismiss(); }
 111     void OnButtonChange(wxCommandEvent& event);
 112     void OnButtonDelete(wxCommandEvent& event);
 113     void OnButtonDeleteSel(wxCommandEvent& event);
 114     void OnButtonClear(wxCommandEvent& event);
 115     void OnButtonInsert(wxCommandEvent &event);
 116     void OnButtonAdd(wxCommandEvent& event);
 117     void OnButtonSetFirst(wxCommandEvent& event);
 118     void OnButtonAddSeveral(wxCommandEvent& event);
 119     void OnButtonAddMany(wxCommandEvent& event);
 120     void OnButtonSetValue(wxCommandEvent& event);
 121     void OnButtonSetCurrent(wxCommandEvent& event);
 122
 123     void OnDropdown(wxCommandEvent& event);
 124     void OnCloseup(wxCommandEvent& event);
 125     void OnComboBox(wxCommandEvent& event);
 126     void OnComboText(wxCommandEvent& event);
 127     void OnComboTextPasted(wxClipboardTextEvent& event);
 128
 129     void OnCheckOrRadioBox(wxCommandEvent& event);
 130
 131     void OnUpdateUIInsertionPointText(wxUpdateUIEvent& event);
 132
 133     void OnUpdateUIInsert(wxUpdateUIEvent& event);
 134     void OnUpdateUIAddSeveral(wxUpdateUIEvent& event);
 135     void OnUpdateUIClearButton(wxUpdateUIEvent& event);
 136     void OnUpdateUIDeleteButton(wxUpdateUIEvent& event);
 137     void OnUpdateUIDeleteSelButton(wxUpdateUIEvent& event);
 138     void OnUpdateUIResetButton(wxUpdateUIEvent& event);
 139     void OnUpdateUISetCurrent(wxUpdateUIEvent& event);
 140
 141     // reset the combobox parameters
 142     void Reset();
 143
 144     // (re)create the combobox
 145     void CreateCombo();
 146
 147     // the controls
 148     // ------------
 149
 150     // the sel mode radiobox
 151     wxRadioBox *m_radioKind;
 152
 153     // the checkboxes for styles
 154     wxCheckBox *m_chkSort,
 155                *m_chkReadonly,
 156                *m_chkProcessEnter;
 157
 158     // the combobox itself and the sizer it is in
 159     wxComboBox *m_combobox;
 160     wxSizer *m_sizerCombo;
 161
 162     // the text entries for "Add/change string" and "Delete" buttons
 163     wxTextCtrl *m_textInsert,
 164                *m_textAdd,
 165                *m_textSetFirst,
 166                *m_textChange,
 167                *m_textSetValue,
 168                *m_textDelete,
 169                *m_textCur;
 170
 171 private:
 172     DECLARE_EVENT_TABLE()
 173     DECLARE_WIDGETS_PAGE(ComboboxWidgetsPage)
 174 };
 175
 176 // ----------------------------------------------------------------------------
 177 // event tables
 178 // ----------------------------------------------------------------------------
 179
 180 BEGIN_EVENT_TABLE(ComboboxWidgetsPage, WidgetsPage)
 181     EVT_BUTTON(ComboPage_Reset, ComboboxWidgetsPage::OnButtonReset)
 182     EVT_BUTTON(ComboPage_Popup, ComboboxWidgetsPage::OnButtonPopup)
 183     EVT_BUTTON(ComboPage_Dismiss, ComboboxWidgetsPage::OnButtonDismiss)
 184     EVT_BUTTON(ComboPage_Change, ComboboxWidgetsPage::OnButtonChange)
 185     EVT_BUTTON(ComboPage_Delete, ComboboxWidgetsPage::OnButtonDelete)
 186     EVT_BUTTON(ComboPage_DeleteSel, ComboboxWidgetsPage::OnButtonDeleteSel)
 187     EVT_BUTTON(ComboPage_Clear, ComboboxWidgetsPage::OnButtonClear)
 188     EVT_BUTTON(ComboPage_Insert, ComboboxWidgetsPage::OnButtonInsert)
 189     EVT_BUTTON(ComboPage_Add, ComboboxWidgetsPage::OnButtonAdd)
 190     EVT_BUTTON(ComboPage_SetFirst, ComboboxWidgetsPage::OnButtonSetFirst)
 191     EVT_BUTTON(ComboPage_AddSeveral, ComboboxWidgetsPage::OnButtonAddSeveral)
 192     EVT_BUTTON(ComboPage_AddMany, ComboboxWidgetsPage::OnButtonAddMany)
 193     EVT_BUTTON(ComboPage_SetValue, ComboboxWidgetsPage::OnButtonSetValue)
 194     EVT_BUTTON(ComboPage_SetCurrent, ComboboxWidgetsPage::OnButtonSetCurrent)
 195     EVT_BUTTON(ComboPage_ContainerTests, ItemContainerWidgetsPage::OnButtonTestItemContainer)
 196
 197     EVT_TEXT_ENTER(ComboPage_InsertText, ComboboxWidgetsPage::OnButtonInsert)
 198     EVT_TEXT_ENTER(ComboPage_AddText, ComboboxWidgetsPage::OnButtonAdd)
 199     EVT_TEXT_ENTER(ComboPage_DeleteText, ComboboxWidgetsPage::OnButtonDelete)
 200
 201     EVT_UPDATE_UI(ComboPage_InsertionPointText, ComboboxWidgetsPage::OnUpdateUIInsertionPointText)
 202
 203     EVT_UPDATE_UI(ComboPage_Reset, ComboboxWidgetsPage::OnUpdateUIResetButton)
 204     EVT_UPDATE_UI(ComboPage_Insert, ComboboxWidgetsPage::OnUpdateUIInsert)
 205     EVT_UPDATE_UI(ComboPage_AddSeveral, ComboboxWidgetsPage::OnUpdateUIAddSeveral)
 206     EVT_UPDATE_UI(ComboPage_Clear, ComboboxWidgetsPage::OnUpdateUIClearButton)
 207     EVT_UPDATE_UI(ComboPage_DeleteText, ComboboxWidgetsPage::OnUpdateUIClearButton)
 208     EVT_UPDATE_UI(ComboPage_Delete, ComboboxWidgetsPage::OnUpdateUIDeleteButton)
 209     EVT_UPDATE_UI(ComboPage_Change, ComboboxWidgetsPage::OnUpdateUIDeleteSelButton)
 210     EVT_UPDATE_UI(ComboPage_ChangeText, ComboboxWidgetsPage::OnUpdateUIDeleteSelButton)
 211     EVT_UPDATE_UI(ComboPage_DeleteSel, ComboboxWidgetsPage::OnUpdateUIDeleteSelButton)
 212     EVT_UPDATE_UI(ComboPage_SetCurrent, ComboboxWidgetsPage::OnUpdateUISetCurrent)
 213
 214     EVT_COMBOBOX(ComboPage_Combo, ComboboxWidgetsPage::OnComboBox)
 215     EVT_COMBOBOX_DROPDOWN(ComboPage_Combo, ComboboxWidgetsPage::OnDropdown)
 216     EVT_COMBOBOX_CLOSEUP(ComboPage_Combo, ComboboxWidgetsPage::OnCloseup)
 217     EVT_TEXT(ComboPage_Combo, ComboboxWidgetsPage::OnComboText)
 218     EVT_TEXT_ENTER(ComboPage_Combo, ComboboxWidgetsPage::OnComboText)
 219     EVT_TEXT_PASTE(ComboPage_Combo, ComboboxWidgetsPage::OnComboTextPasted)
 220
 221     EVT_CHECKBOX(wxID_ANY, ComboboxWidgetsPage::OnCheckOrRadioBox)
 222     EVT_RADIOBOX(wxID_ANY, ComboboxWidgetsPage::OnCheckOrRadioBox)
 223 END_EVENT_TABLE()
 224
 225 // ============================================================================
 226 // implementation
 227 // ============================================================================
 228
 229 #if defined(__WXUNIVERSAL__)
 230     #define FAMILY_CTRLS UNIVERSAL_CTRLS
 231 #else
 232     #define FAMILY_CTRLS NATIVE_CTRLS
 233 #endif
 234
 235 IMPLEMENT_WIDGETS_PAGE(ComboboxWidgetsPage, wxT("Combobox"),
 236                        FAMILY_CTRLS | WITH_ITEMS_CTRLS | COMBO_CTRLS
 237                        );
 238
 239 ComboboxWidgetsPage::ComboboxWidgetsPage(WidgetsBookCtrl *book,
 240                                          wxImageList *imaglist)
 241                   : ItemContainerWidgetsPage(book, imaglist, combobox_xpm)
 242 {
 243     // init everything
 244     m_chkSort =
 245     m_chkReadonly =
 246     m_chkProcessEnter = (wxCheckBox *)NULL;
 247
 248     m_combobox = (wxComboBox *)NULL;
 249     m_sizerCombo = (wxSizer *)NULL;
 250 }
 251
 252 void ComboboxWidgetsPage::CreateContent()
 253 {
 254     /*
 255        What we create here is a frame having 3 panes: style pane is the
 256        leftmost one, in the middle the pane with buttons allowing to perform
 257        miscellaneous combobox operations and the pane containing the combobox
 258        itself to the right
 259     */
 260     wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
 261
 262     // upper left pane
 263
 264     // should be in sync with ComboKind_XXX values
 265     static const wxString kinds[] =
 266     {
 267         wxT("default"),
 268         wxT("simple"),
 269         wxT("drop down"),
 270     };
 271
 272     m_radioKind = new wxRadioBox(this, wxID_ANY, wxT("Combobox &kind:"),
 273                                  wxDefaultPosition, wxDefaultSize,
 274                                  WXSIZEOF(kinds), kinds,
 275                                  1, wxRA_SPECIFY_COLS);
 276
 277     wxSizer *sizerLeftTop = new wxStaticBoxSizer(wxVERTICAL, this, "&Set style");
 278
 279     m_chkSort = CreateCheckBoxAndAddToSizer(sizerLeftTop, wxT("&Sort items"));
 280     m_chkReadonly = CreateCheckBoxAndAddToSizer(sizerLeftTop, wxT("&Read only"));
 281     m_chkProcessEnter = CreateCheckBoxAndAddToSizer(sizerLeftTop, wxT("Process &Enter"));
 282
 283     sizerLeftTop->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
 284     sizerLeftTop->Add(m_radioKind, 0, wxGROW | wxALL, 5);
 285
 286     wxButton *btn = new wxButton(this, ComboPage_Reset, wxT("&Reset"));
 287     sizerLeftTop->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
 288
 289     // lower left pane
 290     wxSizer *sizerLeftBottom = new wxStaticBoxSizer(wxVERTICAL, this, "&Popup");
 291     sizerLeftBottom->Add(new wxButton(this, ComboPage_Popup, "&Show"),
 292                          wxSizerFlags().Border().Centre());
 293     sizerLeftBottom->Add(new wxButton(this, ComboPage_Dismiss, "&Hide"),
 294                          wxSizerFlags().Border().Centre());
 295
 296
 297     wxSizer *sizerLeft = new wxBoxSizer(wxVERTICAL);
 298     sizerLeft->Add(sizerLeftTop);
 299     sizerLeft->AddSpacer(10);
 300     sizerLeft->Add(sizerLeftBottom, wxSizerFlags().Expand());
 301
 302     // middle pane
 303     wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY,
 304         wxT("&Change combobox contents"));
 305     wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
 306
 307     wxSizer *sizerRow;
 308
 309     sizerRow = CreateSizerWithTextAndButton(ComboPage_SetCurrent,
 310                                             wxT("Current &selection"),
 311                                             ComboPage_CurText,
 312                                             &m_textCur);
 313
 314     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 315
 316     wxTextCtrl *text;
 317     sizerRow = CreateSizerWithTextAndLabel(wxT("Insertion Point"),
 318                                            ComboPage_InsertionPointText,
 319                                            &text);
 320     text->SetEditable(false);
 321
 322     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 323
 324     sizerRow = CreateSizerWithTextAndButton(ComboPage_Insert,
 325                                             wxT("&Insert this string"),
 326                                             ComboPage_InsertText,
 327                                             &m_textInsert);
 328     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 329
 330     sizerRow = CreateSizerWithTextAndButton(ComboPage_Add,
 331                                             wxT("&Add this string"),
 332                                             ComboPage_AddText,
 333                                             &m_textAdd);
 334     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 335
 336     sizerRow = CreateSizerWithTextAndButton(ComboPage_SetFirst,
 337                                             wxT("Change &1st string"),
 338                                             ComboPage_SetFirstText,
 339                                             &m_textSetFirst);
 340     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 341
 342     btn = new wxButton(this, ComboPage_AddSeveral, wxT("&Append a few strings"));
 343     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 344
 345     btn = new wxButton(this, ComboPage_AddMany, wxT("Append &many strings"));
 346     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 347
 348     sizerRow = CreateSizerWithTextAndButton(ComboPage_Change,
 349                                             wxT("C&hange current"),
 350                                             ComboPage_ChangeText,
 351                                             &m_textChange);
 352     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 353
 354     sizerRow = CreateSizerWithTextAndButton(ComboPage_Delete,
 355                                             wxT("&Delete this item"),
 356                                             ComboPage_DeleteText,
 357                                             &m_textDelete);
 358     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 359
 360     btn = new wxButton(this, ComboPage_DeleteSel, wxT("Delete &selection"));
 361     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 362
 363     btn = new wxButton(this, ComboPage_Clear, wxT("&Clear"));
 364     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 365
 366     sizerRow = CreateSizerWithTextAndButton(ComboPage_SetValue,
 367                                             wxT("SetValue"),
 368                                             ComboPage_SetValueText,
 369                                             &m_textSetValue);
 370     sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
 371
 372     btn = new wxButton(this, ComboPage_ContainerTests, wxT("Run &tests"));
 373     sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
 374
 375
 376
 377     // right pane
 378     wxSizer *sizerRight = new wxBoxSizer(wxVERTICAL);
 379     m_combobox = new wxComboBox(this, ComboPage_Combo, wxEmptyString,
 380                                 wxDefaultPosition, wxDefaultSize,
 381                                 0, NULL,
 382                                 0);
 383     sizerRight->Add(m_combobox, 0, wxGROW | wxALL, 5);
 384     sizerRight->SetMinSize(150, 0);
 385     m_sizerCombo = sizerRight; // save it to modify it later
 386
 387     // the 3 panes panes compose the window
 388     sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
 389     sizerTop->Add(sizerMiddle, 1, wxGROW | wxALL, 10);
 390     sizerTop->Add(sizerRight, 1, wxGROW | (wxALL & ~wxRIGHT), 10);
 391
 392     // final initializations
 393     Reset();
 394
 395     SetSizer(sizerTop);
 396 }
 397
 398 // ----------------------------------------------------------------------------
 399 // operations
 400 // ----------------------------------------------------------------------------
 401
 402 void ComboboxWidgetsPage::Reset()
 403 {
 404     m_chkSort->SetValue(false);
 405     m_chkReadonly->SetValue(false);
 406     m_chkProcessEnter->SetValue(false);
 407 }
 408
 409 void ComboboxWidgetsPage::CreateCombo()
 410 {
 411     int flags = ms_defaultFlags;
 412
 413     if ( m_chkSort->GetValue() )
 414         flags |= wxCB_SORT;
 415     if ( m_chkReadonly->GetValue() )
 416         flags |= wxCB_READONLY;
 417     if ( m_chkProcessEnter->GetValue() )
 418         flags |= wxTE_PROCESS_ENTER;
 419
 420
 421     switch ( m_radioKind->GetSelection() )
 422     {
 423         default:
 424             wxFAIL_MSG( wxT("unknown combo kind") );
 425             // fall through
 426
 427         case ComboKind_Default:
 428             break;
 429
 430         case ComboKind_Simple:
 431             flags |= wxCB_SIMPLE;
 432             break;
 433
 434         case ComboKind_DropDown:
 435             flags = wxCB_DROPDOWN;
 436             break;
 437     }
 438
 439     wxArrayString items;
 440     if ( m_combobox )
 441     {
 442         unsigned int count = m_combobox->GetCount();
 443         for ( unsigned int n = 0; n < count; n++ )
 444         {
 445             items.Add(m_combobox->GetString(n));
 446         }
 447
 448         m_sizerCombo->Detach( m_combobox );
 449         delete m_combobox;
 450     }
 451
 452     m_combobox = new wxComboBox(this, ComboPage_Combo, wxEmptyString,
 453                                 wxDefaultPosition, wxDefaultSize,
 454                                 0, NULL,
 455                                 flags);
 456
 457     unsigned int count = items.GetCount();
 458     for ( unsigned int n = 0; n < count; n++ )
 459     {
 460         m_combobox->Append(items[n]);
 461     }
 462
 463     m_sizerCombo->Add(m_combobox, 0, wxGROW | wxALL, 5);
 464     m_sizerCombo->Layout();
 465 }
 466
 467 // ----------------------------------------------------------------------------
 468 // event handlers
 469 // ----------------------------------------------------------------------------
 470
 471 void ComboboxWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 472 {
 473     Reset();
 474
 475     CreateCombo();
 476 }
 477
 478 void ComboboxWidgetsPage::OnButtonChange(wxCommandEvent& WXUNUSED(event))
 479 {
 480     int sel = m_combobox->GetSelection();
 481     if ( sel != wxNOT_FOUND )
 482     {
 483         m_combobox->SetString(sel, m_textChange->GetValue());
 484     }
 485 }
 486
 487 void ComboboxWidgetsPage::OnButtonDelete(wxCommandEvent& WXUNUSED(event))
 488 {
 489     unsigned long n;
 490     if ( !m_textDelete->GetValue().ToULong(&n) ||
 491             (n >= m_combobox->GetCount()) )
 492     {
 493         return;
 494     }
 495
 496     m_combobox->Delete(n);
 497 }
 498
 499 void ComboboxWidgetsPage::OnButtonDeleteSel(wxCommandEvent& WXUNUSED(event))
 500 {
 501     int sel = m_combobox->GetSelection();
 502     if ( sel != wxNOT_FOUND )
 503     {
 504         m_combobox->Delete(sel);
 505     }
 506 }
 507
 508 void ComboboxWidgetsPage::OnButtonSetValue(wxCommandEvent& WXUNUSED(event))
 509 {
 510     wxString value = m_textSetValue->GetValue();
 511     m_combobox->SetValue( value );
 512 }
 513
 514 void ComboboxWidgetsPage::OnButtonClear(wxCommandEvent& WXUNUSED(event))
 515 {
 516     m_combobox->Clear();
 517 }
 518
 519 void ComboboxWidgetsPage::OnButtonInsert(wxCommandEvent& WXUNUSED(event))
 520 {
 521     static unsigned int s_item = 0;
 522
 523     wxString s = m_textInsert->GetValue();
 524     if ( !m_textInsert->IsModified() )
 525     {
 526         // update the default string
 527         m_textInsert->SetValue(wxString::Format(wxT("test item %u"), ++s_item));
 528     }
 529
 530     if (m_combobox->GetSelection() >= 0)
 531         m_combobox->Insert(s, m_combobox->GetSelection());
 532 }
 533
 534 void ComboboxWidgetsPage::OnButtonAdd(wxCommandEvent& WXUNUSED(event))
 535 {
 536     static unsigned int s_item = 0;
 537
 538     wxString s = m_textAdd->GetValue();
 539     if ( !m_textAdd->IsModified() )
 540     {
 541         // update the default string
 542         m_textAdd->SetValue(wxString::Format(wxT("test item %u"), ++s_item));
 543     }
 544
 545     m_combobox->Append(s);
 546 }
 547
 548 void ComboboxWidgetsPage::OnButtonSetFirst(wxCommandEvent& WXUNUSED(event))
 549 {
 550     if ( m_combobox->IsListEmpty() )
 551     {
 552         wxLogWarning("No string to change.");
 553         return;
 554     }
 555
 556     m_combobox->SetString(0, m_textSetFirst->GetValue());
 557 }
 558
 559 void ComboboxWidgetsPage::OnButtonAddMany(wxCommandEvent& WXUNUSED(event))
 560 {
 561     // "many" means 1000 here
 562     for ( unsigned int n = 0; n < 1000; n++ )
 563     {
 564         m_combobox->Append(wxString::Format(wxT("item #%u"), n));
 565     }
 566 }
 567
 568 void ComboboxWidgetsPage::OnButtonSetCurrent(wxCommandEvent& WXUNUSED(event))
 569 {
 570     long n;
 571     if ( !m_textCur->GetValue().ToLong(&n) )
 572         return;
 573
 574     m_combobox->SetSelection(n);
 575 }
 576
 577 void ComboboxWidgetsPage::OnButtonAddSeveral(wxCommandEvent& WXUNUSED(event))
 578 {
 579     m_combobox->Append(wxT("First"));
 580     m_combobox->Append(wxT("another one"));
 581     m_combobox->Append(wxT("and the last (very very very very very very very very very very long) one"));
 582 }
 583
 584 void ComboboxWidgetsPage::OnUpdateUIInsertionPointText(wxUpdateUIEvent& event)
 585 {
 586     if (m_combobox)
 587         event.SetText( wxString::Format(wxT("%ld"), m_combobox->GetInsertionPoint()) );
 588 }
 589
 590 void ComboboxWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
 591 {
 592     event.Enable( m_chkSort->GetValue() ||
 593                     m_chkReadonly->GetValue() ||
 594                         m_chkProcessEnter->GetValue() );
 595 }
 596
 597 void ComboboxWidgetsPage::OnUpdateUIInsert(wxUpdateUIEvent& event)
 598 {
 599     if (m_combobox)
 600     {
 601         bool enable = !(m_combobox->GetWindowStyle() & wxCB_SORT) &&
 602                        (m_combobox->GetSelection() >= 0);
 603
 604         event.Enable(enable);
 605     }
 606 }
 607
 608 void ComboboxWidgetsPage::OnUpdateUIDeleteButton(wxUpdateUIEvent& event)
 609 {
 610     if (m_combobox)
 611     {
 612       unsigned long n;
 613       event.Enable(m_textDelete->GetValue().ToULong(&n) &&
 614         (n < (unsigned)m_combobox->GetCount()));
 615     }
 616 }
 617
 618 void ComboboxWidgetsPage::OnUpdateUIDeleteSelButton(wxUpdateUIEvent& event)
 619 {
 620     if (m_combobox)
 621         event.Enable(m_combobox->GetSelection() != wxNOT_FOUND);
 622 }
 623
 624 void ComboboxWidgetsPage::OnUpdateUIClearButton(wxUpdateUIEvent& event)
 625 {
 626     if (m_combobox)
 627         event.Enable(m_combobox->GetCount() != 0);
 628 }
 629
 630 void ComboboxWidgetsPage::OnUpdateUIAddSeveral(wxUpdateUIEvent& event)
 631 {
 632     if (m_combobox)
 633         event.Enable(!(m_combobox->GetWindowStyle() & wxCB_SORT));
 634 }
 635
 636 void ComboboxWidgetsPage::OnUpdateUISetCurrent(wxUpdateUIEvent& event)
 637 {
 638     long n;
 639     event.Enable( m_textCur->GetValue().ToLong(&n) &&
 640                     (n == wxNOT_FOUND ||
 641                         (n >= 0 && (unsigned)n < m_combobox->GetCount())) );
 642 }
 643
 644 void ComboboxWidgetsPage::OnComboText(wxCommandEvent& event)
 645 {
 646     if (!m_combobox)
 647         return;
 648
 649     wxString s = event.GetString();
 650
 651     wxASSERT_MSG( s == m_combobox->GetValue(),
 652                   wxT("event and combobox values should be the same") );
 653
 654     if (event.GetEventType() == wxEVT_TEXT_ENTER)
 655     {
 656         wxLogMessage(wxT("Combobox enter pressed (now '%s')"), s.c_str());
 657     }
 658     else
 659     {
 660         wxLogMessage(wxT("Combobox text changed (now '%s')"), s.c_str());
 661     }
 662 }
 663
 664 void ComboboxWidgetsPage::OnComboTextPasted(wxClipboardTextEvent& event)
 665 {
 666     wxLogMessage("Text pasted from clipboard.");
 667     event.Skip();
 668 }
 669
 670 void ComboboxWidgetsPage::OnComboBox(wxCommandEvent& event)
 671 {
 672     long sel = event.GetInt();
 673     const wxString selstr = wxString::Format(wxT("%ld"), sel);
 674     m_textDelete->SetValue(selstr);
 675     m_textCur->SetValue(selstr);
 676
 677     wxLogMessage(wxT("Combobox item %ld selected"), sel);
 678
 679     wxLogMessage(wxT("Combobox GetValue(): %s"), m_combobox->GetValue().c_str() );
 680
 681     if ( event.GetString() != m_combobox->GetValue() )
 682     {
 683         wxLogMessage("ERROR: Event has different string \"%s\"",
 684                      event.GetString());
 685     }
 686 }
 687
 688 void ComboboxWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& WXUNUSED(event))
 689 {
 690     CreateCombo();
 691 }
 692
 693 void ComboboxWidgetsPage::OnDropdown(wxCommandEvent& WXUNUSED(event))
 694 {
 695     wxLogMessage(wxT("Combobox dropped down"));
 696 }
 697
 698 void ComboboxWidgetsPage::OnCloseup(wxCommandEvent& WXUNUSED(event))
 699 {
 700     wxLogMessage(wxT("Combobox closed up"));
 701 }
 702
 703 #endif // wxUSE_COMBOBOX