samples/widgets/textctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Program:     wxWindows Widgets Sample
   3 // Name:        textctrl.cpp
   4 // Purpose:     part of the widgets sample showing wxTextCtrl
   5 // Author:      Vadim Zeitlin
   6 // Created:     27.03.01
   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 // for all others, include the necessary headers
  28 #ifndef WX_PRECOMP
  29     #include "wx/log.h"
  30     #include "wx/timer.h"
  31
  32     #include "wx/bitmap.h"
  33     #include "wx/button.h"
  34     #include "wx/checkbox.h"
  35     #include "wx/radiobox.h"
  36     #include "wx/statbox.h"
  37     #include "wx/stattext.h"
  38     #include "wx/textctrl.h"
  39 #endif
  40
  41 #include "wx/sizer.h"
  42
  43 #include "widgets.h"
  44
  45 #include "icons/text.xpm"
  46
  47 // ----------------------------------------------------------------------------
  48 // constants
  49 // ----------------------------------------------------------------------------
  50
  51 // control ids
  52 enum
  53 {
  54     TextPage_Reset = 100,
  55
  56     TextPage_Set,
  57     TextPage_Add,
  58     TextPage_Insert,
  59     TextPage_Clear,
  60     TextPage_Load,
  61
  62     TextPage_Password,
  63     TextPage_WrapLines,
  64     TextPage_Textctrl
  65 };
  66
  67 // textctrl line number radiobox values
  68 enum TextLines
  69 {
  70     TextLines_Single,
  71     TextLines_Multi
  72 };
  73
  74 #ifdef __WXMSW__
  75
  76 // textctrl kind values
  77 enum TextKind
  78 {
  79     TextKind_Plain,
  80     TextKind_Rich,
  81     TextKind_Rich2
  82 };
  83
  84 #endif // __WXMSW__
  85
  86 // default values for the controls
  87 static const struct ControlValues
  88 {
  89     TextLines textLines;
  90     bool password;
  91     bool wraplines;
  92     bool readonly;
  93 #ifdef __WXMSW__
  94     TextKind textKind;
  95 #endif // __WXMSW__
  96 } DEFAULTS =
  97 {
  98     TextLines_Multi,    // multiline
  99     FALSE,              // not password
 100     TRUE,               // do wrap lines
 101     FALSE,              // not readonly
 102 #ifdef __WXMSW__
 103     TextKind_Plain      // plain EDIT control
 104 #endif // __WXMSW__
 105 };
 106
 107 // ----------------------------------------------------------------------------
 108 // TextWidgetsPage
 109 // ----------------------------------------------------------------------------
 110
 111 // Define a new frame type: this is going to be our main frame
 112 class TextWidgetsPage : public WidgetsPage
 113 {
 114 public:
 115     // ctor(s) and dtor
 116     TextWidgetsPage(wxNotebook *notebook, wxImageList *imaglist);
 117     virtual ~TextWidgetsPage();
 118
 119 protected:
 120     // create an info text contorl
 121     wxTextCtrl *CreateInfoText();
 122
 123     // create a horz sizer holding a static text and this text control
 124     wxSizer *CreateTextWithLabelSizer(const wxString& label,
 125                                       wxTextCtrl *text,
 126                                       const wxString& label2 = wxEmptyString,
 127                                       wxTextCtrl *text2 = NULL);
 128
 129     // event handlers
 130     void OnButtonReset(wxCommandEvent& event);
 131     void OnButtonClearLog(wxCommandEvent& event);
 132
 133     void OnButtonSet(wxCommandEvent& event);
 134     void OnButtonAdd(wxCommandEvent& event);
 135     void OnButtonInsert(wxCommandEvent& event);
 136     void OnButtonClear(wxCommandEvent& event);
 137     void OnButtonLoad(wxCommandEvent& event);
 138
 139     void OnButtonQuit(wxCommandEvent& event);
 140
 141     void OnText(wxCommandEvent& event);
 142     void OnTextEnter(wxCommandEvent& event);
 143
 144     void OnCheckOrRadioBox(wxCommandEvent& event);
 145
 146     void OnUpdateUIClearButton(wxUpdateUIEvent& event);
 147
 148     void OnUpdateUIPasswordCheckbox(wxUpdateUIEvent& event);
 149     void OnUpdateUIWrapLinesCheckbox(wxUpdateUIEvent& event);
 150
 151     void OnUpdateUIResetButton(wxUpdateUIEvent& event);
 152
 153     void OnIdle(wxIdleEvent& event);
 154
 155     // reset the textctrl parameters
 156     void Reset();
 157
 158     // (re)create the textctrl
 159     void CreateText();
 160
 161     // is the control currently single line?
 162     bool IsSingleLine() const
 163     {
 164         return m_radioTextLines->GetSelection() == TextLines_Single;
 165     }
 166
 167     // the controls
 168     // ------------
 169
 170     // the radiobox to choose between single and multi line
 171     wxRadioBox *m_radioTextLines;
 172
 173     // the checkboxes controlling text ctrl styles
 174     wxCheckBox *m_chkPassword,
 175                *m_chkWrapLines,
 176                *m_chkReadonly;
 177
 178     // under MSW we test rich edit controls as well here
 179 #ifdef __WXMSW__
 180     wxRadioBox *m_radioKind;
 181 #endif // __WXMSW__
 182
 183     // the textctrl itself and the sizer it is in
 184     wxTextCtrl *m_text;
 185     wxSizer *m_sizerText;
 186
 187     // the information text zones
 188     wxTextCtrl *m_textPosCur,
 189                *m_textRowCur,
 190                *m_textColCur,
 191                *m_textPosLast,
 192                *m_textLineLast,
 193                *m_textSelFrom,
 194                *m_textSelTo,
 195                *m_textRange;
 196
 197     // and the data to show in them
 198     long m_posCur,
 199          m_posLast,
 200          m_selFrom,
 201          m_selTo;
 202
 203 private:
 204     // any class wishing to process wxWindows events must use this macro
 205     DECLARE_EVENT_TABLE()
 206     DECLARE_WIDGETS_PAGE(TextWidgetsPage)
 207 };
 208
 209 // ----------------------------------------------------------------------------
 210 // event tables
 211 // ----------------------------------------------------------------------------
 212
 213 BEGIN_EVENT_TABLE(TextWidgetsPage, WidgetsPage)
 214     EVT_IDLE(TextWidgetsPage::OnIdle)
 215
 216     EVT_BUTTON(TextPage_Reset, TextWidgetsPage::OnButtonReset)
 217
 218     EVT_BUTTON(TextPage_Clear, TextWidgetsPage::OnButtonClear)
 219     EVT_BUTTON(TextPage_Set, TextWidgetsPage::OnButtonSet)
 220     EVT_BUTTON(TextPage_Add, TextWidgetsPage::OnButtonAdd)
 221     EVT_BUTTON(TextPage_Insert, TextWidgetsPage::OnButtonInsert)
 222     EVT_BUTTON(TextPage_Load, TextWidgetsPage::OnButtonLoad)
 223
 224     EVT_UPDATE_UI(TextPage_Clear, TextWidgetsPage::OnUpdateUIClearButton)
 225
 226     EVT_UPDATE_UI(TextPage_Password, TextWidgetsPage::OnUpdateUIPasswordCheckbox)
 227     EVT_UPDATE_UI(TextPage_WrapLines, TextWidgetsPage::OnUpdateUIWrapLinesCheckbox)
 228
 229     EVT_UPDATE_UI(TextPage_Reset, TextWidgetsPage::OnUpdateUIResetButton)
 230
 231     EVT_TEXT(TextPage_Textctrl, TextWidgetsPage::OnText)
 232     EVT_TEXT_ENTER(TextPage_Textctrl, TextWidgetsPage::OnTextEnter)
 233
 234     EVT_CHECKBOX(-1, TextWidgetsPage::OnCheckOrRadioBox)
 235     EVT_RADIOBOX(-1, TextWidgetsPage::OnCheckOrRadioBox)
 236 END_EVENT_TABLE()
 237
 238 // ============================================================================
 239 // implementation
 240 // ============================================================================
 241
 242 IMPLEMENT_WIDGETS_PAGE(TextWidgetsPage, _T("Text"));
 243
 244 // ----------------------------------------------------------------------------
 245 // TextWidgetsPage creation
 246 // ----------------------------------------------------------------------------
 247
 248 TextWidgetsPage::TextWidgetsPage(wxNotebook *notebook, wxImageList *imaglist)
 249                : WidgetsPage(notebook)
 250 {
 251     imaglist->Add(wxBitmap(text_xpm));
 252
 253     // init everything
 254 #ifdef __WXMSW__
 255     m_radioKind =
 256 #endif // __WXMSW__
 257     m_radioTextLines = (wxRadioBox *)NULL;
 258
 259     m_chkPassword =
 260     m_chkWrapLines =
 261     m_chkReadonly = (wxCheckBox *)NULL;
 262
 263     m_text =
 264     m_textPosCur =
 265     m_textRowCur =
 266     m_textColCur =
 267     m_textPosLast =
 268     m_textLineLast =
 269     m_textSelFrom =
 270     m_textSelTo =
 271     m_textRange = (wxTextCtrl *)NULL;
 272
 273     m_sizerText = (wxSizer *)NULL;
 274
 275     m_posCur =
 276     m_posLast =
 277     m_selFrom =
 278     m_selTo = -2; // not -1 which means "no selection"
 279
 280     // left pane
 281     static const wxString modes[] =
 282     {
 283         _T("single line"),
 284         _T("multi line"),
 285     };
 286
 287     wxStaticBox *box = new wxStaticBox(this, -1, _T("&Set textctrl parameters"));
 288     m_radioTextLines = new wxRadioBox(this, -1, _T("&Number of lines:"),
 289                                       wxDefaultPosition, wxDefaultSize,
 290                                       WXSIZEOF(modes), modes,
 291                                       1, wxRA_SPECIFY_COLS);
 292
 293     wxSizer *sizerLeft = new wxStaticBoxSizer(box, wxVERTICAL);
 294
 295     sizerLeft->Add(m_radioTextLines, 0, wxGROW | wxALL, 5);
 296     sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
 297
 298     m_chkPassword = CreateCheckBoxAndAddToSizer(
 299                         sizerLeft, _T("&Password control"), TextPage_Password
 300                     );
 301     m_chkWrapLines = CreateCheckBoxAndAddToSizer(
 302                         sizerLeft, _T("Line &wrap"), TextPage_WrapLines
 303                      );
 304     m_chkReadonly = CreateCheckBoxAndAddToSizer(
 305                         sizerLeft, _T("&Read-only mode")
 306                     );
 307
 308 #ifdef __WXMSW__
 309     static const wxString kinds[] =
 310     {
 311         _T("plain edit"),
 312         _T("rich edit"),
 313         _T("rich edit 2.0"),
 314     };
 315
 316     m_radioKind = new wxRadioBox(this, -1, _T("Control &kind"),
 317                                  wxDefaultPosition, wxDefaultSize,
 318                                  WXSIZEOF(kinds), kinds,
 319                                  1, wxRA_SPECIFY_COLS);
 320
 321     sizerLeft->Add(5, 5, 0, wxGROW | wxALL, 5); // spacer
 322     sizerLeft->Add(m_radioKind, 0, wxGROW | wxALL, 5);
 323 #endif // __WXMSW__
 324
 325     wxButton *btn = new wxButton(this, TextPage_Reset, _T("&Reset"));
 326     sizerLeft->Add(2, 2, 0, wxGROW | wxALL, 1); // spacer
 327     sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
 328
 329     // middle pane
 330     wxStaticBox *box2 = new wxStaticBox(this, -1, _T("&Change contents:"));
 331     wxSizer *sizerMiddleUp = new wxStaticBoxSizer(box2, wxVERTICAL);
 332
 333     btn = new wxButton(this, TextPage_Set, _T("&Set text value"));
 334     sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
 335
 336     btn = new wxButton(this, TextPage_Add, _T("&Append text"));
 337     sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
 338
 339     btn = new wxButton(this, TextPage_Insert, _T("&Insert text"));
 340     sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
 341
 342     btn = new wxButton(this, TextPage_Load, _T("&Load file"));
 343     sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
 344
 345     btn = new wxButton(this, TextPage_Clear, _T("&Clear"));
 346     sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
 347
 348     wxStaticBox *box4 = new wxStaticBox(this, -1, _T("&Info:"));
 349     wxSizer *sizerMiddleDown = new wxStaticBoxSizer(box4, wxVERTICAL);
 350
 351     m_textPosCur = CreateInfoText();
 352     m_textRowCur = CreateInfoText();
 353     m_textColCur = CreateInfoText();
 354
 355     wxSizer *sizerRow = new wxBoxSizer(wxHORIZONTAL);
 356     sizerRow->Add(CreateTextWithLabelSizer
 357                   (
 358                     _T("Current pos:"),
 359                     m_textPosCur
 360                   ),
 361                   0, wxRIGHT, 5);
 362     sizerRow->Add(CreateTextWithLabelSizer
 363                   (
 364                     _T("Col:"),
 365                     m_textColCur
 366                   ),
 367                   0, wxLEFT | wxRIGHT, 5);
 368     sizerRow->Add(CreateTextWithLabelSizer
 369                   (
 370                     _T("Row:"),
 371                     m_textRowCur
 372                   ),
 373                   0, wxLEFT, 5);
 374     sizerMiddleDown->Add(sizerRow, 0, wxALL, 5);
 375
 376     m_textLineLast = CreateInfoText();
 377     m_textPosLast = CreateInfoText();
 378     sizerMiddleDown->Add
 379                      (
 380                         CreateTextWithLabelSizer
 381                         (
 382                           _T("Number of lines:"),
 383                           m_textLineLast,
 384                           _T("Last position:"),
 385                           m_textPosLast
 386                         ),
 387                         0, wxALL, 5
 388                      );
 389
 390     m_textSelFrom = CreateInfoText();
 391     m_textSelTo = CreateInfoText();
 392     sizerMiddleDown->Add
 393                      (
 394                         CreateTextWithLabelSizer
 395                         (
 396                           _T("Selection: from"),
 397                           m_textSelFrom,
 398                           _T("to"),
 399                           m_textSelTo
 400                         ),
 401                         0, wxALL, 5
 402                      );
 403
 404     m_textRange = new wxTextCtrl(this, -1, _T(""),
 405                                  wxDefaultPosition, wxDefaultSize,
 406                                  wxTE_READONLY);
 407     sizerMiddleDown->Add
 408                      (
 409                         CreateTextWithLabelSizer
 410                         (
 411                           _T("Range 10..20:"),
 412                           m_textRange
 413                         ),
 414                         0, wxALL, 5
 415                      );
 416
 417     wxSizer *sizerMiddle = new wxBoxSizer(wxVERTICAL);
 418     sizerMiddle->Add(sizerMiddleUp, 0, wxGROW);
 419     sizerMiddle->Add(sizerMiddleDown, 1, wxGROW | wxTOP, 5);
 420
 421     // right pane
 422     wxStaticBox *box3 = new wxStaticBox(this, -1, _T("&Text:"));
 423     m_sizerText = new wxStaticBoxSizer(box3, wxHORIZONTAL);
 424     Reset();
 425     CreateText();
 426     m_sizerText->SetMinSize(150, 0);
 427
 428     // the 3 panes panes compose the upper part of the window
 429     wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
 430     sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
 431     sizerTop->Add(sizerMiddle, 0, wxGROW | wxALL, 10);
 432     sizerTop->Add(m_sizerText, 1, wxGROW | (wxALL & ~wxRIGHT), 10);
 433
 434     SetAutoLayout(TRUE);
 435     SetSizer(sizerTop);
 436
 437     sizerTop->Fit(this);
 438 }
 439
 440 TextWidgetsPage::~TextWidgetsPage()
 441 {
 442 }
 443
 444 // ----------------------------------------------------------------------------
 445 // creation helpers
 446 // ----------------------------------------------------------------------------
 447
 448 wxTextCtrl *TextWidgetsPage::CreateInfoText()
 449 {
 450     static int s_maxWidth = 0;
 451     if ( !s_maxWidth )
 452     {
 453         // calc it once only
 454         GetTextExtent(_T("9999999"), &s_maxWidth, NULL);
 455     }
 456
 457     wxTextCtrl *text = new wxTextCtrl(this, -1, _T(""),
 458                                       wxDefaultPosition,
 459                                       wxSize(s_maxWidth, -1),
 460                                       wxTE_READONLY);
 461     return text;
 462 }
 463
 464 wxSizer *TextWidgetsPage::CreateTextWithLabelSizer(const wxString& label,
 465                                                  wxTextCtrl *text,
 466                                                  const wxString& label2,
 467                                                  wxTextCtrl *text2)
 468 {
 469     wxSizer *sizerRow = new wxBoxSizer(wxHORIZONTAL);
 470     sizerRow->Add(new wxStaticText(this, -1, label), 0,
 471                   wxALIGN_CENTRE_VERTICAL | wxRIGHT, 5);
 472     sizerRow->Add(text, 0, wxALIGN_CENTRE_VERTICAL);
 473     if ( text2 )
 474     {
 475         sizerRow->Add(new wxStaticText(this, -1, label2), 0,
 476                       wxALIGN_CENTRE_VERTICAL | wxLEFT | wxRIGHT, 5);
 477         sizerRow->Add(text2, 0, wxALIGN_CENTRE_VERTICAL);
 478     }
 479
 480     return sizerRow;
 481 }
 482
 483 // ----------------------------------------------------------------------------
 484 // operations
 485 // ----------------------------------------------------------------------------
 486
 487 void TextWidgetsPage::Reset()
 488 {
 489     m_radioTextLines->SetSelection(DEFAULTS.textLines);
 490     m_chkPassword->SetValue(DEFAULTS.password);
 491     m_chkWrapLines->SetValue(DEFAULTS.wraplines);
 492     m_chkReadonly->SetValue(DEFAULTS.readonly);
 493 #ifdef __WXMSW__
 494     m_radioKind->SetSelection(DEFAULTS.textKind);
 495 #endif // __WXMSW__
 496 }
 497
 498 void TextWidgetsPage::CreateText()
 499 {
 500     int flags = 0;
 501     switch ( m_radioTextLines->GetSelection() )
 502     {
 503         default:
 504             wxFAIL_MSG( _T("unexpected lines radio box selection") );
 505
 506         case TextLines_Single:
 507             break;
 508
 509         case TextLines_Multi:
 510             flags |= wxTE_MULTILINE;
 511             m_chkPassword->SetValue(FALSE);
 512             break;
 513     }
 514
 515     if ( m_chkPassword->GetValue() )
 516         flags |= wxTE_PASSWORD;
 517     if ( m_chkReadonly->GetValue() )
 518         flags |= wxTE_READONLY;
 519     if ( !m_chkWrapLines->GetValue() )
 520         flags |= wxHSCROLL;
 521
 522 #ifdef __WXMSW__
 523     switch ( m_radioKind->GetSelection() )
 524     {
 525         default:
 526             wxFAIL_MSG( _T("unexpected kind radio box selection") );
 527
 528         case TextKind_Plain:
 529             break;
 530
 531         case TextKind_Rich:
 532             flags |= wxTE_RICH;
 533             break;
 534
 535         case TextKind_Rich2:
 536             flags |= wxTE_RICH2;
 537             break;
 538     }
 539 #endif // __WXMSW__
 540
 541     wxString valueOld;
 542     if ( m_text )
 543     {
 544         valueOld = m_text->GetValue();
 545
 546         m_sizerText->Detach( m_text );
 547         delete m_text;
 548     }
 549     else
 550     {
 551         valueOld = _T("Hello, Universe!");
 552     }
 553
 554     m_text = new wxTextCtrl(this, TextPage_Textctrl,
 555                             valueOld,
 556                             wxDefaultPosition, wxDefaultSize,
 557                             flags);
 558
 559     // cast to int needed to silence gcc warning about different enums
 560     m_sizerText->Add(m_text, 1, wxALL |
 561                      (flags & wxTE_MULTILINE ? (int)wxGROW
 562                                              : wxALIGN_TOP), 5);
 563     m_sizerText->Layout();
 564 }
 565
 566 // ----------------------------------------------------------------------------
 567 // event handlers
 568 // ----------------------------------------------------------------------------
 569
 570 void TextWidgetsPage::OnIdle(wxIdleEvent& WXUNUSED(event))
 571 {
 572     // update all info texts
 573
 574     if ( m_textPosCur )
 575     {
 576         long posCur = m_text->GetInsertionPoint();
 577         if ( posCur != m_posCur )
 578         {
 579             m_textPosCur->Clear();
 580             m_textRowCur->Clear();
 581             m_textColCur->Clear();
 582
 583             long col, row;
 584             m_text->PositionToXY(posCur, &col, &row);
 585
 586             *m_textPosCur << posCur;
 587             *m_textRowCur << row;
 588             *m_textColCur << col;
 589
 590             m_posCur = posCur;
 591         }
 592     }
 593
 594     if ( m_textPosLast )
 595     {
 596         long posLast = m_text->GetLastPosition();
 597         if ( posLast != m_posLast )
 598         {
 599             m_textPosLast->Clear();
 600             *m_textPosLast << posLast;
 601
 602             m_posLast = posLast;
 603         }
 604     }
 605
 606     if ( m_textLineLast )
 607     {
 608         m_textLineLast->SetValue(
 609                 wxString::Format(_T("%d"), m_text->GetNumberOfLines()) );
 610     }
 611
 612     if ( m_textSelFrom && m_textSelTo )
 613     {
 614         long selFrom, selTo;
 615         m_text->GetSelection(&selFrom, &selTo);
 616         if ( selFrom != m_selFrom )
 617         {
 618             m_textSelFrom->Clear();
 619             *m_textSelFrom << selFrom;
 620
 621             m_selFrom = selFrom;
 622         }
 623
 624         if ( selTo != m_selTo )
 625         {
 626             m_textSelTo->Clear();
 627             *m_textSelTo << selTo;
 628
 629             m_selTo = selTo;
 630         }
 631     }
 632
 633     if ( m_textRange )
 634     {
 635         m_textRange->SetValue(m_text->GetRange(10, 20));
 636     }
 637 }
 638
 639 void TextWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 640 {
 641     Reset();
 642
 643     CreateText();
 644 }
 645
 646 void TextWidgetsPage::OnButtonSet(wxCommandEvent& WXUNUSED(event))
 647 {
 648     m_text->SetValue(m_text->GetWindowStyle() & wxTE_MULTILINE
 649                         ? _T("Here,\nthere and\neverywhere")
 650                         : _T("Yellow submarine"));
 651
 652     m_text->SetFocus();
 653 }
 654
 655 void TextWidgetsPage::OnButtonAdd(wxCommandEvent& WXUNUSED(event))
 656 {
 657     if ( m_text->GetWindowStyle() & wxTE_MULTILINE )
 658     {
 659         m_text->AppendText(_T("We all live in a\n"));
 660     }
 661
 662     m_text->AppendText(_T("Yellow submarine"));
 663 }
 664
 665 void TextWidgetsPage::OnButtonInsert(wxCommandEvent& WXUNUSED(event))
 666 {
 667     m_text->WriteText(_T("Is there anybody going to listen to my story"));
 668     if ( m_text->GetWindowStyle() & wxTE_MULTILINE )
 669     {
 670         m_text->WriteText(_T("\nall about the girl who came to stay"));
 671     }
 672 }
 673
 674 void TextWidgetsPage::OnButtonClear(wxCommandEvent& WXUNUSED(event))
 675 {
 676     m_text->Clear();
 677     m_text->SetFocus();
 678 }
 679
 680 void TextWidgetsPage::OnButtonLoad(wxCommandEvent& WXUNUSED(event))
 681 {
 682     // search for the file in several dirs where it's likely to be
 683     wxPathList pathlist;
 684     pathlist.Add(_T("."));
 685     pathlist.Add(_T(".."));
 686     pathlist.Add(_T("../../../samples/widgets"));
 687
 688     wxString filename = pathlist.FindValidPath(_T("textctrl.cpp"));
 689     if ( !filename )
 690     {
 691         wxLogError(_T("File textctrl.cpp not found."));
 692     }
 693     else // load it
 694     {
 695         wxStopWatch sw;
 696         if ( !m_text->LoadFile(filename) )
 697         {
 698             // this is not supposed to happen ...
 699             wxLogError(_T("Error loading file."));
 700         }
 701         else
 702         {
 703             long elapsed = sw.Time();
 704             wxLogMessage(_T("Loaded file '%s' in %lu.%us"),
 705                          filename.c_str(), elapsed / 1000,
 706                          (unsigned int) elapsed % 1000);
 707         }
 708     }
 709 }
 710
 711 void TextWidgetsPage::OnUpdateUIClearButton(wxUpdateUIEvent& event)
 712 {
 713     event.Enable(!m_text->GetValue().empty());
 714 }
 715
 716 void TextWidgetsPage::OnUpdateUIWrapLinesCheckbox(wxUpdateUIEvent& event)
 717 {
 718     event.Enable( !IsSingleLine() );
 719 }
 720
 721 void TextWidgetsPage::OnUpdateUIPasswordCheckbox(wxUpdateUIEvent& event)
 722 {
 723     // can't put multiline control in password mode
 724     event.Enable( IsSingleLine() );
 725 }
 726
 727 void TextWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
 728 {
 729     event.Enable( (m_radioTextLines->GetSelection() != DEFAULTS.textLines) ||
 730 #ifdef __WXMSW__
 731                   (m_radioKind->GetSelection() != DEFAULTS.textKind) ||
 732 #endif // __WXMSW__
 733                   (m_chkReadonly->GetValue() != DEFAULTS.readonly) ||
 734                   (m_chkPassword->GetValue() != DEFAULTS.password) ||
 735                   (m_chkWrapLines->GetValue() != DEFAULTS.wraplines) );
 736 }
 737
 738 void TextWidgetsPage::OnText(wxCommandEvent& event)
 739 {
 740     // small hack to suppress the very first message: by then the logging is
 741     // not yet redirected and so initial setting of the text value results in
 742     // an annoying message box
 743     static bool s_firstTime = TRUE;
 744     if ( s_firstTime )
 745     {
 746         s_firstTime = FALSE;
 747         return;
 748     }
 749
 750     wxLogMessage(_T("Text ctrl value changed"));
 751 }
 752
 753 void TextWidgetsPage::OnTextEnter(wxCommandEvent& event)
 754 {
 755     wxLogMessage(_T("Text entered: '%s'"), event.GetString().c_str());
 756 }
 757
 758 void TextWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& event)
 759 {
 760     CreateText();
 761 }
 762