samples/widgets/textctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Program:     wxWidgets 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     #include "wx/msgdlg.h"
  40 #endif
  41
  42 #include "wx/sizer.h"
  43 #include "wx/ioswrap.h"
  44
  45 #include "widgets.h"
  46
  47 #include "icons/text.xpm"
  48
  49 // ----------------------------------------------------------------------------
  50 // constants
  51 // ----------------------------------------------------------------------------
  52
  53 // control ids
  54 enum
  55 {
  56     TextPage_Reset = wxID_HIGHEST,
  57
  58     TextPage_Set,
  59     TextPage_Add,
  60     TextPage_Insert,
  61     TextPage_Clear,
  62     TextPage_Load,
  63
  64     TextPage_StreamRedirector,
  65
  66     TextPage_Password,
  67     TextPage_WrapLines,
  68     TextPage_Textctrl
  69 };
  70
  71 // textctrl line number radiobox values
  72 enum TextLines
  73 {
  74     TextLines_Single,
  75     TextLines_Multi,
  76     TextLines_Max
  77 };
  78
  79 // wrap style radio box
  80 enum WrapStyle
  81 {
  82     WrapStyle_None,
  83     WrapStyle_Word,
  84     WrapStyle_Char,
  85     WrapStyle_Best,
  86     WrapStyle_Max
  87 };
  88
  89 #ifdef __WXMSW__
  90
  91 // textctrl kind values
  92 enum TextKind
  93 {
  94     TextKind_Plain,
  95     TextKind_Rich,
  96     TextKind_Rich2,
  97     TextKind_Max
  98 };
  99
 100 #endif // __WXMSW__
 101
 102 // default values for the controls
 103 static const struct ControlValues
 104 {
 105     TextLines textLines;
 106
 107     bool password;
 108     bool readonly;
 109
 110     WrapStyle wrapStyle;
 111
 112 #ifdef __WXMSW__
 113     TextKind textKind;
 114 #endif // __WXMSW__
 115 } DEFAULTS =
 116 {
 117     TextLines_Multi,    // multiline
 118     false,              // not password
 119     false,              // not readonly
 120     WrapStyle_Word,     // wrap on word boundaries
 121 #ifdef __WXMSW__
 122     TextKind_Plain      // plain EDIT control
 123 #endif // __WXMSW__
 124 };
 125
 126 // ----------------------------------------------------------------------------
 127 // TextWidgetsPage
 128 // ----------------------------------------------------------------------------
 129
 130 // Define a new frame type: this is going to be our main frame
 131 class TextWidgetsPage : public WidgetsPage
 132 {
 133 public:
 134     // ctor(s) and dtor
 135     TextWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist);
 136     virtual ~TextWidgetsPage(){};
 137
 138     virtual wxControl *GetWidget() const { return m_text; }
 139     virtual void RecreateWidget() { CreateText(); }
 140
 141 protected:
 142     // create an info text contorl
 143     wxTextCtrl *CreateInfoText();
 144
 145     // create a horz sizer holding a static text and this text control
 146     wxSizer *CreateTextWithLabelSizer(const wxString& label,
 147                                       wxTextCtrl *text,
 148                                       const wxString& label2 = wxEmptyString,
 149                                       wxTextCtrl *text2 = NULL);
 150
 151     // event handlers
 152     void OnButtonReset(wxCommandEvent& event);
 153     void OnButtonClearLog(wxCommandEvent& event);
 154
 155     void OnButtonSet(wxCommandEvent& event);
 156     void OnButtonAdd(wxCommandEvent& event);
 157     void OnButtonInsert(wxCommandEvent& event);
 158     void OnButtonClear(wxCommandEvent& event);
 159     void OnButtonLoad(wxCommandEvent& event);
 160
 161     void OnStreamRedirector(wxCommandEvent& event);
 162     void OnButtonQuit(wxCommandEvent& event);
 163
 164     void OnText(wxCommandEvent& event);
 165     void OnTextEnter(wxCommandEvent& event);
 166
 167     void OnCheckOrRadioBox(wxCommandEvent& event);
 168
 169     void OnUpdateUIClearButton(wxUpdateUIEvent& event);
 170
 171     void OnUpdateUIPasswordCheckbox(wxUpdateUIEvent& event);
 172     void OnUpdateUIWrapLinesCheckbox(wxUpdateUIEvent& event);
 173
 174     void OnUpdateUIResetButton(wxUpdateUIEvent& event);
 175
 176     void OnIdle(wxIdleEvent& event);
 177
 178     // reset the textctrl parameters
 179     void Reset();
 180
 181     // (re)create the textctrl
 182     void CreateText();
 183
 184     // is the control currently single line?
 185     bool IsSingleLine() const
 186     {
 187         return m_radioTextLines->GetSelection() == TextLines_Single;
 188     }
 189
 190     // the controls
 191     // ------------
 192
 193     // the radiobox to choose between single and multi line
 194     wxRadioBox *m_radioTextLines;
 195
 196     // and another one to choose the wrapping style
 197     wxRadioBox *m_radioWrap;
 198
 199     // the checkboxes controlling text ctrl styles
 200     wxCheckBox *m_chkPassword,
 201                *m_chkReadonly;
 202
 203     // under MSW we test rich edit controls as well here
 204 #ifdef __WXMSW__
 205     wxRadioBox *m_radioKind;
 206 #endif // __WXMSW__
 207
 208     // the textctrl itself and the sizer it is in
 209     wxTextCtrl *m_text;
 210     wxSizer *m_sizerText;
 211
 212     // the information text zones
 213     wxTextCtrl *m_textPosCur,
 214                *m_textRowCur,
 215                *m_textColCur,
 216                *m_textPosLast,
 217                *m_textLineLast,
 218                *m_textSelFrom,
 219                *m_textSelTo,
 220                *m_textRange;
 221
 222     // and the data to show in them
 223     long m_posCur,
 224          m_posLast,
 225          m_selFrom,
 226          m_selTo;
 227
 228     wxString m_range10_20;
 229
 230 private:
 231     // any class wishing to process wxWidgets events must use this macro
 232     DECLARE_EVENT_TABLE()
 233     DECLARE_WIDGETS_PAGE(TextWidgetsPage)
 234 };
 235
 236 // ----------------------------------------------------------------------------
 237 // WidgetsTextCtrl
 238 // ----------------------------------------------------------------------------
 239
 240 class WidgetsTextCtrl : public wxTextCtrl
 241 {
 242 public:
 243     WidgetsTextCtrl(wxWindow *parent,
 244                     wxWindowID id,
 245                     const wxString& value,
 246                     int flags)
 247         : wxTextCtrl(parent, id, value, wxDefaultPosition, wxDefaultSize, flags)
 248     {
 249     }
 250
 251 protected:
 252     void OnRightClick(wxMouseEvent& event)
 253     {
 254         wxString where;
 255         wxTextCoord x, y;
 256         switch ( HitTest(event.GetPosition(), &x, &y) )
 257         {
 258             default:
 259                 wxFAIL_MSG( _T("unexpected HitTest() result") );
 260                 // fall through
 261
 262             case wxTE_HT_UNKNOWN:
 263                 x = y = -1;
 264                 where = _T("nowhere near");
 265                 break;
 266
 267             case wxTE_HT_BEFORE:
 268                 where = _T("before");
 269                 break;
 270
 271             case wxTE_HT_BELOW:
 272                 where = _T("below");
 273                 break;
 274
 275             case wxTE_HT_BEYOND:
 276                 where = _T("beyond");
 277                 break;
 278
 279             case wxTE_HT_ON_TEXT:
 280                 where = _T("at");
 281                 break;
 282         }
 283
 284         wxLogMessage(_T("Mouse is %s (%ld, %ld)"), where.c_str(), x, y);
 285
 286         event.Skip();
 287     }
 288
 289 private:
 290     DECLARE_EVENT_TABLE()
 291 };
 292
 293 // ----------------------------------------------------------------------------
 294 // event tables
 295 // ----------------------------------------------------------------------------
 296
 297 BEGIN_EVENT_TABLE(TextWidgetsPage, WidgetsPage)
 298     EVT_IDLE(TextWidgetsPage::OnIdle)
 299
 300     EVT_BUTTON(TextPage_Reset, TextWidgetsPage::OnButtonReset)
 301
 302     EVT_BUTTON(TextPage_StreamRedirector, TextWidgetsPage::OnStreamRedirector)
 303
 304     EVT_BUTTON(TextPage_Clear, TextWidgetsPage::OnButtonClear)
 305     EVT_BUTTON(TextPage_Set, TextWidgetsPage::OnButtonSet)
 306     EVT_BUTTON(TextPage_Add, TextWidgetsPage::OnButtonAdd)
 307     EVT_BUTTON(TextPage_Insert, TextWidgetsPage::OnButtonInsert)
 308     EVT_BUTTON(TextPage_Load, TextWidgetsPage::OnButtonLoad)
 309
 310     EVT_UPDATE_UI(TextPage_Clear, TextWidgetsPage::OnUpdateUIClearButton)
 311
 312     EVT_UPDATE_UI(TextPage_Password, TextWidgetsPage::OnUpdateUIPasswordCheckbox)
 313     EVT_UPDATE_UI(TextPage_WrapLines, TextWidgetsPage::OnUpdateUIWrapLinesCheckbox)
 314
 315     EVT_UPDATE_UI(TextPage_Reset, TextWidgetsPage::OnUpdateUIResetButton)
 316
 317     EVT_TEXT(TextPage_Textctrl, TextWidgetsPage::OnText)
 318     EVT_TEXT_ENTER(TextPage_Textctrl, TextWidgetsPage::OnTextEnter)
 319
 320     EVT_CHECKBOX(wxID_ANY, TextWidgetsPage::OnCheckOrRadioBox)
 321     EVT_RADIOBOX(wxID_ANY, TextWidgetsPage::OnCheckOrRadioBox)
 322 END_EVENT_TABLE()
 323
 324 BEGIN_EVENT_TABLE(WidgetsTextCtrl, wxTextCtrl)
 325     EVT_RIGHT_UP(WidgetsTextCtrl::OnRightClick)
 326 END_EVENT_TABLE()
 327
 328 // ============================================================================
 329 // implementation
 330 // ============================================================================
 331
 332 #if defined(__WXX11__)
 333     #define FAMILY_CTRLS NATIVE_CTRLS
 334 #elif defined(__WXUNIVERSAL__)
 335     #define FAMILY_CTRLS UNIVERSAL_CTRLS
 336 #else
 337     #define FAMILY_CTRLS NATIVE_CTRLS
 338 #endif
 339
 340 IMPLEMENT_WIDGETS_PAGE(TextWidgetsPage, _T("Text"),
 341                        FAMILY_CTRLS | EDITABLE_CTRLS
 342                        );
 343
 344 // ----------------------------------------------------------------------------
 345 // TextWidgetsPage creation
 346 // ----------------------------------------------------------------------------
 347
 348 TextWidgetsPage::TextWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist)
 349                : WidgetsPage(book, imaglist, text_xpm)
 350 {
 351     // init everything
 352 #ifdef __WXMSW__
 353     m_radioKind =
 354 #endif // __WXMSW__
 355     m_radioWrap =
 356     m_radioTextLines = (wxRadioBox *)NULL;
 357
 358     m_chkPassword =
 359     m_chkReadonly = (wxCheckBox *)NULL;
 360
 361     m_text =
 362     m_textPosCur =
 363     m_textRowCur =
 364     m_textColCur =
 365     m_textPosLast =
 366     m_textLineLast =
 367     m_textSelFrom =
 368     m_textSelTo =
 369     m_textRange = (wxTextCtrl *)NULL;
 370
 371     m_sizerText = (wxSizer *)NULL;
 372
 373     m_posCur =
 374     m_posLast =
 375     m_selFrom =
 376     m_selTo = -2; // not -1 which means "no selection"
 377
 378     // left pane
 379     static const wxString modes[] =
 380     {
 381         _T("single line"),
 382         _T("multi line"),
 383     };
 384
 385     wxStaticBox *box = new wxStaticBox(this, wxID_ANY, _T("&Set textctrl parameters"));
 386     m_radioTextLines = new wxRadioBox(this, wxID_ANY, _T("&Number of lines:"),
 387                                       wxDefaultPosition, wxDefaultSize,
 388                                       WXSIZEOF(modes), modes,
 389                                       1, wxRA_SPECIFY_COLS);
 390
 391     wxSizer *sizerLeft = new wxStaticBoxSizer(box, wxVERTICAL);
 392
 393     sizerLeft->Add(m_radioTextLines, 0, wxGROW | wxALL, 5);
 394     sizerLeft->AddSpacer(5);
 395
 396     m_chkPassword = CreateCheckBoxAndAddToSizer(
 397                         sizerLeft, _T("&Password control"), TextPage_Password
 398                     );
 399     m_chkReadonly = CreateCheckBoxAndAddToSizer(
 400                         sizerLeft, _T("&Read-only mode")
 401                     );
 402     sizerLeft->AddSpacer(5);
 403
 404     static const wxString wrap[] =
 405     {
 406         _T("no wrap"),
 407         _T("word wrap"),
 408         _T("char wrap"),
 409         _T("best wrap"),
 410     };
 411
 412     m_radioWrap = new wxRadioBox(this, wxID_ANY, _T("&Wrap style:"),
 413                                  wxDefaultPosition, wxDefaultSize,
 414                                  WXSIZEOF(wrap), wrap,
 415                                  1, wxRA_SPECIFY_COLS);
 416     sizerLeft->Add(m_radioWrap, 0, wxGROW | wxALL, 5);
 417
 418 #ifdef __WXMSW__
 419     static const wxString kinds[] =
 420     {
 421         _T("plain edit"),
 422         _T("rich edit"),
 423         _T("rich edit 2.0"),
 424     };
 425
 426     m_radioKind = new wxRadioBox(this, wxID_ANY, _T("Control &kind"),
 427                                  wxDefaultPosition, wxDefaultSize,
 428                                  WXSIZEOF(kinds), kinds,
 429                                  1, wxRA_SPECIFY_COLS);
 430
 431     sizerLeft->AddSpacer(5);
 432     sizerLeft->Add(m_radioKind, 0, wxGROW | wxALL, 5);
 433 #endif // __WXMSW__
 434
 435     wxButton *btn = new wxButton(this, TextPage_Reset, _T("&Reset"));
 436     sizerLeft->Add(2, 2, 0, wxGROW | wxALL, 1); // spacer
 437     sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
 438
 439     // middle pane
 440     wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY, _T("&Change contents:"));
 441     wxSizer *sizerMiddleUp = new wxStaticBoxSizer(box2, wxVERTICAL);
 442
 443     btn = new wxButton(this, TextPage_Set, _T("&Set text value"));
 444     sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
 445
 446     btn = new wxButton(this, TextPage_Add, _T("&Append text"));
 447     sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
 448
 449     btn = new wxButton(this, TextPage_Insert, _T("&Insert text"));
 450     sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
 451
 452     btn = new wxButton(this, TextPage_Load, _T("&Load file"));
 453     sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
 454
 455     btn = new wxButton(this, TextPage_Clear, _T("&Clear"));
 456     sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
 457
 458     btn = new wxButton(this, TextPage_StreamRedirector, _T("St&ream redirection"));
 459     sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
 460
 461     wxStaticBox *box4 = new wxStaticBox(this, wxID_ANY, _T("&Info:"));
 462     wxSizer *sizerMiddleDown = new wxStaticBoxSizer(box4, wxVERTICAL);
 463
 464     m_textPosCur = CreateInfoText();
 465     m_textRowCur = CreateInfoText();
 466     m_textColCur = CreateInfoText();
 467
 468     wxSizer *sizerRow = new wxBoxSizer(wxHORIZONTAL);
 469     sizerRow->Add(CreateTextWithLabelSizer
 470                   (
 471                     _T("Current pos:"),
 472                     m_textPosCur
 473                   ),
 474                   0, wxRIGHT, 5);
 475     sizerRow->Add(CreateTextWithLabelSizer
 476                   (
 477                     _T("Col:"),
 478                     m_textColCur
 479                   ),
 480                   0, wxLEFT | wxRIGHT, 5);
 481     sizerRow->Add(CreateTextWithLabelSizer
 482                   (
 483                     _T("Row:"),
 484                     m_textRowCur
 485                   ),
 486                   0, wxLEFT, 5);
 487     sizerMiddleDown->Add(sizerRow, 0, wxALL, 5);
 488
 489     m_textLineLast = CreateInfoText();
 490     m_textPosLast = CreateInfoText();
 491     sizerMiddleDown->Add
 492                      (
 493                         CreateTextWithLabelSizer
 494                         (
 495                           _T("Number of lines:"),
 496                           m_textLineLast,
 497                           _T("Last position:"),
 498                           m_textPosLast
 499                         ),
 500                         0, wxALL, 5
 501                      );
 502
 503     m_textSelFrom = CreateInfoText();
 504     m_textSelTo = CreateInfoText();
 505     sizerMiddleDown->Add
 506                      (
 507                         CreateTextWithLabelSizer
 508                         (
 509                           _T("Selection: from"),
 510                           m_textSelFrom,
 511                           _T("to"),
 512                           m_textSelTo
 513                         ),
 514                         0, wxALL, 5
 515                      );
 516
 517     m_textRange = new wxTextCtrl(this, wxID_ANY, wxEmptyString,
 518                                  wxDefaultPosition, wxDefaultSize,
 519                                  wxTE_READONLY);
 520     sizerMiddleDown->Add
 521                      (
 522                         CreateTextWithLabelSizer
 523                         (
 524                           _T("Range 10..20:"),
 525                           m_textRange
 526                         ),
 527                         0, wxALL, 5
 528                      );
 529
 530     wxSizer *sizerMiddle = new wxBoxSizer(wxVERTICAL);
 531     sizerMiddle->Add(sizerMiddleUp, 0, wxGROW);
 532     sizerMiddle->Add(sizerMiddleDown, 1, wxGROW | wxTOP, 5);
 533
 534     // right pane
 535     wxStaticBox *box3 = new wxStaticBox(this, wxID_ANY, _T("&Text:"));
 536     m_sizerText = new wxStaticBoxSizer(box3, wxHORIZONTAL);
 537     Reset();
 538     CreateText();
 539     m_sizerText->SetMinSize(150, 0);
 540
 541     // the 3 panes panes compose the upper part of the window
 542     wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
 543     sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
 544     sizerTop->Add(sizerMiddle, 0, wxGROW | wxALL, 10);
 545     sizerTop->Add(m_sizerText, 1, wxGROW | (wxALL & ~wxRIGHT), 10);
 546
 547     SetSizer(sizerTop);
 548
 549     sizerTop->Fit(this);
 550 }
 551
 552 // ----------------------------------------------------------------------------
 553 // creation helpers
 554 // ----------------------------------------------------------------------------
 555
 556 wxTextCtrl *TextWidgetsPage::CreateInfoText()
 557 {
 558     static int s_maxWidth = 0;
 559     if ( !s_maxWidth )
 560     {
 561         // calc it once only
 562         GetTextExtent(_T("9999999"), &s_maxWidth, NULL);
 563     }
 564
 565     wxTextCtrl *text = new wxTextCtrl(this, wxID_ANY, wxEmptyString,
 566                                       wxDefaultPosition,
 567                                       wxSize(s_maxWidth, wxDefaultCoord),
 568                                       wxTE_READONLY);
 569     return text;
 570 }
 571
 572 wxSizer *TextWidgetsPage::CreateTextWithLabelSizer(const wxString& label,
 573                                                  wxTextCtrl *text,
 574                                                  const wxString& label2,
 575                                                  wxTextCtrl *text2)
 576 {
 577     wxSizer *sizerRow = new wxBoxSizer(wxHORIZONTAL);
 578     sizerRow->Add(new wxStaticText(this, wxID_ANY, label), 0,
 579                   wxALIGN_CENTRE_VERTICAL | wxRIGHT, 5);
 580     sizerRow->Add(text, 0, wxALIGN_CENTRE_VERTICAL);
 581     if ( text2 )
 582     {
 583         sizerRow->Add(new wxStaticText(this, wxID_ANY, label2), 0,
 584                       wxALIGN_CENTRE_VERTICAL | wxLEFT | wxRIGHT, 5);
 585         sizerRow->Add(text2, 0, wxALIGN_CENTRE_VERTICAL);
 586     }
 587
 588     return sizerRow;
 589 }
 590
 591 // ----------------------------------------------------------------------------
 592 // operations
 593 // ----------------------------------------------------------------------------
 594
 595 void TextWidgetsPage::Reset()
 596 {
 597     m_radioTextLines->SetSelection(DEFAULTS.textLines);
 598
 599     m_chkPassword->SetValue(DEFAULTS.password);
 600     m_chkReadonly->SetValue(DEFAULTS.readonly);
 601
 602     m_radioWrap->SetSelection(DEFAULTS.wrapStyle);
 603
 604 #ifdef __WXMSW__
 605     m_radioKind->SetSelection(DEFAULTS.textKind);
 606 #endif // __WXMSW__
 607 }
 608
 609 void TextWidgetsPage::CreateText()
 610 {
 611     int flags = ms_defaultFlags;
 612     switch ( m_radioTextLines->GetSelection() )
 613     {
 614         default:
 615             wxFAIL_MSG( _T("unexpected lines radio box selection") );
 616
 617         case TextLines_Single:
 618             break;
 619
 620         case TextLines_Multi:
 621             flags |= wxTE_MULTILINE;
 622             m_chkPassword->SetValue(false);
 623             break;
 624     }
 625
 626     if ( m_chkPassword->GetValue() )
 627         flags |= wxTE_PASSWORD;
 628     if ( m_chkReadonly->GetValue() )
 629         flags |= wxTE_READONLY;
 630
 631     switch ( m_radioWrap->GetSelection() )
 632     {
 633         default:
 634             wxFAIL_MSG( _T("unexpected wrap style radio box selection") );
 635
 636         case WrapStyle_None:
 637             flags |= wxTE_DONTWRAP; // same as wxHSCROLL
 638             break;
 639
 640         case WrapStyle_Word:
 641             flags |= wxTE_WORDWRAP;
 642             break;
 643
 644         case WrapStyle_Char:
 645             flags |= wxTE_CHARWRAP;
 646             break;
 647
 648         case WrapStyle_Best:
 649             // this is default but use symbolic file name for consistency
 650             flags |= wxTE_BESTWRAP;
 651             break;
 652     }
 653
 654 #ifdef __WXMSW__
 655     switch ( m_radioKind->GetSelection() )
 656     {
 657         default:
 658             wxFAIL_MSG( _T("unexpected kind radio box selection") );
 659
 660         case TextKind_Plain:
 661             break;
 662
 663         case TextKind_Rich:
 664             flags |= wxTE_RICH;
 665             break;
 666
 667         case TextKind_Rich2:
 668             flags |= wxTE_RICH2;
 669             break;
 670     }
 671 #endif // __WXMSW__
 672
 673     wxString valueOld;
 674     if ( m_text )
 675     {
 676         valueOld = m_text->GetValue();
 677
 678         m_sizerText->Detach( m_text );
 679         delete m_text;
 680     }
 681     else
 682     {
 683         valueOld = _T("Hello, Universe!");
 684     }
 685
 686     m_text = new WidgetsTextCtrl(this, TextPage_Textctrl, valueOld, flags);
 687
 688     // cast to int needed to silence gcc warning about different enums
 689     m_sizerText->Add(m_text, 1, wxALL |
 690                      (flags & wxTE_MULTILINE ? (int)wxGROW
 691                                              : wxALIGN_TOP), 5);
 692     m_sizerText->Layout();
 693 }
 694
 695 // ----------------------------------------------------------------------------
 696 // event handlers
 697 // ----------------------------------------------------------------------------
 698
 699 void TextWidgetsPage::OnIdle(wxIdleEvent& WXUNUSED(event))
 700 {
 701     // update all info texts
 702
 703     if ( m_textPosCur )
 704     {
 705         long posCur = m_text->GetInsertionPoint();
 706         if ( posCur != m_posCur )
 707         {
 708             m_textPosCur->Clear();
 709             m_textRowCur->Clear();
 710             m_textColCur->Clear();
 711
 712             long col, row;
 713             m_text->PositionToXY(posCur, &col, &row);
 714
 715             *m_textPosCur << posCur;
 716             *m_textRowCur << row;
 717             *m_textColCur << col;
 718
 719             m_posCur = posCur;
 720         }
 721     }
 722
 723     if ( m_textPosLast )
 724     {
 725         long posLast = m_text->GetLastPosition();
 726         if ( posLast != m_posLast )
 727         {
 728             m_textPosLast->Clear();
 729             *m_textPosLast << posLast;
 730
 731             m_posLast = posLast;
 732         }
 733     }
 734
 735     if ( m_textLineLast )
 736     {
 737         m_textLineLast->SetValue(
 738                 wxString::Format(_T("%d"), m_text->GetNumberOfLines()) );
 739     }
 740
 741     if ( m_textSelFrom && m_textSelTo )
 742     {
 743         long selFrom, selTo;
 744         m_text->GetSelection(&selFrom, &selTo);
 745         if ( selFrom != m_selFrom )
 746         {
 747             m_textSelFrom->Clear();
 748             *m_textSelFrom << selFrom;
 749
 750             m_selFrom = selFrom;
 751         }
 752
 753         if ( selTo != m_selTo )
 754         {
 755             m_textSelTo->Clear();
 756             *m_textSelTo << selTo;
 757
 758             m_selTo = selTo;
 759         }
 760     }
 761
 762     if ( m_textRange )
 763     {
 764         wxString range = m_text->GetRange(10, 20);
 765         if ( range != m_range10_20 )
 766         {
 767             m_range10_20 = range;
 768             m_textRange->SetValue(range);
 769         }
 770     }
 771 }
 772
 773 void TextWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 774 {
 775     Reset();
 776
 777     CreateText();
 778 }
 779
 780 void TextWidgetsPage::OnButtonSet(wxCommandEvent& WXUNUSED(event))
 781 {
 782     m_text->SetValue(m_text->GetWindowStyle() & wxTE_MULTILINE
 783                         ? _T("Here,\nthere and\neverywhere")
 784                         : _T("Yellow submarine"));
 785
 786     m_text->SetFocus();
 787 }
 788
 789 void TextWidgetsPage::OnButtonAdd(wxCommandEvent& WXUNUSED(event))
 790 {
 791     if ( m_text->GetWindowStyle() & wxTE_MULTILINE )
 792     {
 793         m_text->AppendText(_T("We all live in a\n"));
 794     }
 795
 796     m_text->AppendText(_T("Yellow submarine"));
 797 }
 798
 799 void TextWidgetsPage::OnButtonInsert(wxCommandEvent& WXUNUSED(event))
 800 {
 801     m_text->WriteText(_T("Is there anybody going to listen to my story"));
 802     if ( m_text->GetWindowStyle() & wxTE_MULTILINE )
 803     {
 804         m_text->WriteText(_T("\nall about the girl who came to stay"));
 805     }
 806 }
 807
 808 void TextWidgetsPage::OnButtonClear(wxCommandEvent& WXUNUSED(event))
 809 {
 810     m_text->Clear();
 811     m_text->SetFocus();
 812 }
 813
 814 void TextWidgetsPage::OnButtonLoad(wxCommandEvent& WXUNUSED(event))
 815 {
 816     // search for the file in several dirs where it's likely to be
 817     wxPathList pathlist;
 818     pathlist.Add(_T("."));
 819     pathlist.Add(_T(".."));
 820     pathlist.Add(_T("../../../samples/widgets"));
 821
 822     wxString filename = pathlist.FindValidPath(_T("textctrl.cpp"));
 823     if ( !filename )
 824     {
 825         wxLogError(_T("File textctrl.cpp not found."));
 826     }
 827     else // load it
 828     {
 829         wxStopWatch sw;
 830         if ( !m_text->LoadFile(filename) )
 831         {
 832             // this is not supposed to happen ...
 833             wxLogError(_T("Error loading file."));
 834         }
 835         else
 836         {
 837             long elapsed = sw.Time();
 838             wxLogMessage(_T("Loaded file '%s' in %lu.%us"),
 839                          filename.c_str(), elapsed / 1000,
 840                          (unsigned int) elapsed % 1000);
 841         }
 842     }
 843 }
 844
 845 void TextWidgetsPage::OnUpdateUIClearButton(wxUpdateUIEvent& event)
 846 {
 847     event.Enable(!m_text->GetValue().empty());
 848 }
 849
 850 void TextWidgetsPage::OnUpdateUIWrapLinesCheckbox(wxUpdateUIEvent& event)
 851 {
 852     event.Enable( !IsSingleLine() );
 853 }
 854
 855 void TextWidgetsPage::OnUpdateUIPasswordCheckbox(wxUpdateUIEvent& event)
 856 {
 857     // can't put multiline control in password mode
 858     event.Enable( IsSingleLine() );
 859 }
 860
 861 void TextWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
 862 {
 863     event.Enable( (m_radioTextLines->GetSelection() != DEFAULTS.textLines) ||
 864 #ifdef __WXMSW__
 865                   (m_radioKind->GetSelection() != DEFAULTS.textKind) ||
 866 #endif // __WXMSW__
 867                   (m_chkReadonly->GetValue() != DEFAULTS.readonly) ||
 868                   (m_chkPassword->GetValue() != DEFAULTS.password) ||
 869                   (m_radioWrap->GetSelection() != DEFAULTS.wrapStyle) );
 870 }
 871
 872 void TextWidgetsPage::OnText(wxCommandEvent& WXUNUSED(event))
 873 {
 874     // small hack to suppress the very first message: by then the logging is
 875     // not yet redirected and so initial setting of the text value results in
 876     // an annoying message box
 877     static bool s_firstTime = true;
 878     if ( s_firstTime )
 879     {
 880         s_firstTime = false;
 881         return;
 882     }
 883
 884     wxLogMessage(_T("Text ctrl value changed"));
 885 }
 886
 887 void TextWidgetsPage::OnTextEnter(wxCommandEvent& event)
 888 {
 889     wxLogMessage(_T("Text entered: '%s'"), event.GetString().c_str());
 890     event.Skip();
 891 }
 892
 893 void TextWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& WXUNUSED(event))
 894 {
 895     CreateText();
 896 }
 897
 898 void TextWidgetsPage::OnStreamRedirector(wxCommandEvent& WXUNUSED(event))
 899 {
 900 #if wxHAS_TEXT_WINDOW_STREAM
 901     wxStreamToTextRedirector redirect(m_text);
 902     wxString str( _T("Outputed to cout, appears in wxTextCtrl!") );
 903     wxSTD cout << str << wxSTD endl;
 904 #else
 905     wxMessageBox(_T("This wxWidgets build does not support wxStreamToTextRedirector"));
 906 #endif
 907 }