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 = 100,
  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(wxBookCtrlBase *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 IMPLEMENT_WIDGETS_PAGE(TextWidgetsPage, _T("Text"));
 333
 334 // ----------------------------------------------------------------------------
 335 // TextWidgetsPage creation
 336 // ----------------------------------------------------------------------------
 337
 338 TextWidgetsPage::TextWidgetsPage(wxBookCtrlBase *book, wxImageList *imaglist)
 339                : WidgetsPage(book)
 340 {
 341     imaglist->Add(wxBitmap(text_xpm));
 342
 343     // init everything
 344 #ifdef __WXMSW__
 345     m_radioKind =
 346 #endif // __WXMSW__
 347     m_radioWrap =
 348     m_radioTextLines = (wxRadioBox *)NULL;
 349
 350     m_chkPassword =
 351     m_chkReadonly = (wxCheckBox *)NULL;
 352
 353     m_text =
 354     m_textPosCur =
 355     m_textRowCur =
 356     m_textColCur =
 357     m_textPosLast =
 358     m_textLineLast =
 359     m_textSelFrom =
 360     m_textSelTo =
 361     m_textRange = (wxTextCtrl *)NULL;
 362
 363     m_sizerText = (wxSizer *)NULL;
 364
 365     m_posCur =
 366     m_posLast =
 367     m_selFrom =
 368     m_selTo = -2; // not -1 which means "no selection"
 369
 370     // left pane
 371     static const wxString modes[] =
 372     {
 373         _T("single line"),
 374         _T("multi line"),
 375     };
 376
 377     wxStaticBox *box = new wxStaticBox(this, wxID_ANY, _T("&Set textctrl parameters"));
 378     m_radioTextLines = new wxRadioBox(this, wxID_ANY, _T("&Number of lines:"),
 379                                       wxDefaultPosition, wxDefaultSize,
 380                                       WXSIZEOF(modes), modes,
 381                                       1, wxRA_SPECIFY_COLS);
 382
 383     wxSizer *sizerLeft = new wxStaticBoxSizer(box, wxVERTICAL);
 384
 385     sizerLeft->Add(m_radioTextLines, 0, wxGROW | wxALL, 5);
 386     sizerLeft->AddSpacer(5);
 387
 388     m_chkPassword = CreateCheckBoxAndAddToSizer(
 389                         sizerLeft, _T("&Password control"), TextPage_Password
 390                     );
 391     m_chkReadonly = CreateCheckBoxAndAddToSizer(
 392                         sizerLeft, _T("&Read-only mode")
 393                     );
 394     sizerLeft->AddSpacer(5);
 395
 396     static const wxString wrap[] =
 397     {
 398         _T("no wrap"),
 399         _T("word wrap"),
 400         _T("char wrap"),
 401         _T("best wrap"),
 402     };
 403
 404     m_radioWrap = new wxRadioBox(this, wxID_ANY, _T("&Wrap style:"),
 405                                  wxDefaultPosition, wxDefaultSize,
 406                                  WXSIZEOF(wrap), wrap,
 407                                  1, wxRA_SPECIFY_COLS);
 408     sizerLeft->Add(m_radioWrap, 0, wxGROW | wxALL, 5);
 409
 410 #ifdef __WXMSW__
 411     static const wxString kinds[] =
 412     {
 413         _T("plain edit"),
 414         _T("rich edit"),
 415         _T("rich edit 2.0"),
 416     };
 417
 418     m_radioKind = new wxRadioBox(this, wxID_ANY, _T("Control &kind"),
 419                                  wxDefaultPosition, wxDefaultSize,
 420                                  WXSIZEOF(kinds), kinds,
 421                                  1, wxRA_SPECIFY_COLS);
 422
 423     sizerLeft->AddSpacer(5);
 424     sizerLeft->Add(m_radioKind, 0, wxGROW | wxALL, 5);
 425 #endif // __WXMSW__
 426
 427     wxButton *btn = new wxButton(this, TextPage_Reset, _T("&Reset"));
 428     sizerLeft->Add(2, 2, 0, wxGROW | wxALL, 1); // spacer
 429     sizerLeft->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 15);
 430
 431     // middle pane
 432     wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY, _T("&Change contents:"));
 433     wxSizer *sizerMiddleUp = new wxStaticBoxSizer(box2, wxVERTICAL);
 434
 435     btn = new wxButton(this, TextPage_Set, _T("&Set text value"));
 436     sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
 437
 438     btn = new wxButton(this, TextPage_Add, _T("&Append text"));
 439     sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
 440
 441     btn = new wxButton(this, TextPage_Insert, _T("&Insert text"));
 442     sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
 443
 444     btn = new wxButton(this, TextPage_Load, _T("&Load file"));
 445     sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
 446
 447     btn = new wxButton(this, TextPage_Clear, _T("&Clear"));
 448     sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
 449
 450     btn = new wxButton(this, TextPage_StreamRedirector, _T("St&ream redirection"));
 451     sizerMiddleUp->Add(btn, 0, wxALL | wxGROW, 1);
 452
 453     wxStaticBox *box4 = new wxStaticBox(this, wxID_ANY, _T("&Info:"));
 454     wxSizer *sizerMiddleDown = new wxStaticBoxSizer(box4, wxVERTICAL);
 455
 456     m_textPosCur = CreateInfoText();
 457     m_textRowCur = CreateInfoText();
 458     m_textColCur = CreateInfoText();
 459
 460     wxSizer *sizerRow = new wxBoxSizer(wxHORIZONTAL);
 461     sizerRow->Add(CreateTextWithLabelSizer
 462                   (
 463                     _T("Current pos:"),
 464                     m_textPosCur
 465                   ),
 466                   0, wxRIGHT, 5);
 467     sizerRow->Add(CreateTextWithLabelSizer
 468                   (
 469                     _T("Col:"),
 470                     m_textColCur
 471                   ),
 472                   0, wxLEFT | wxRIGHT, 5);
 473     sizerRow->Add(CreateTextWithLabelSizer
 474                   (
 475                     _T("Row:"),
 476                     m_textRowCur
 477                   ),
 478                   0, wxLEFT, 5);
 479     sizerMiddleDown->Add(sizerRow, 0, wxALL, 5);
 480
 481     m_textLineLast = CreateInfoText();
 482     m_textPosLast = CreateInfoText();
 483     sizerMiddleDown->Add
 484                      (
 485                         CreateTextWithLabelSizer
 486                         (
 487                           _T("Number of lines:"),
 488                           m_textLineLast,
 489                           _T("Last position:"),
 490                           m_textPosLast
 491                         ),
 492                         0, wxALL, 5
 493                      );
 494
 495     m_textSelFrom = CreateInfoText();
 496     m_textSelTo = CreateInfoText();
 497     sizerMiddleDown->Add
 498                      (
 499                         CreateTextWithLabelSizer
 500                         (
 501                           _T("Selection: from"),
 502                           m_textSelFrom,
 503                           _T("to"),
 504                           m_textSelTo
 505                         ),
 506                         0, wxALL, 5
 507                      );
 508
 509     m_textRange = new wxTextCtrl(this, wxID_ANY, wxEmptyString,
 510                                  wxDefaultPosition, wxDefaultSize,
 511                                  wxTE_READONLY);
 512     sizerMiddleDown->Add
 513                      (
 514                         CreateTextWithLabelSizer
 515                         (
 516                           _T("Range 10..20:"),
 517                           m_textRange
 518                         ),
 519                         0, wxALL, 5
 520                      );
 521
 522     wxSizer *sizerMiddle = new wxBoxSizer(wxVERTICAL);
 523     sizerMiddle->Add(sizerMiddleUp, 0, wxGROW);
 524     sizerMiddle->Add(sizerMiddleDown, 1, wxGROW | wxTOP, 5);
 525
 526     // right pane
 527     wxStaticBox *box3 = new wxStaticBox(this, wxID_ANY, _T("&Text:"));
 528     m_sizerText = new wxStaticBoxSizer(box3, wxHORIZONTAL);
 529     Reset();
 530     CreateText();
 531     m_sizerText->SetMinSize(150, 0);
 532
 533     // the 3 panes panes compose the upper part of the window
 534     wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
 535     sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
 536     sizerTop->Add(sizerMiddle, 0, wxGROW | wxALL, 10);
 537     sizerTop->Add(m_sizerText, 1, wxGROW | (wxALL & ~wxRIGHT), 10);
 538
 539     SetSizer(sizerTop);
 540
 541     sizerTop->Fit(this);
 542 }
 543
 544 // ----------------------------------------------------------------------------
 545 // creation helpers
 546 // ----------------------------------------------------------------------------
 547
 548 wxTextCtrl *TextWidgetsPage::CreateInfoText()
 549 {
 550     static int s_maxWidth = 0;
 551     if ( !s_maxWidth )
 552     {
 553         // calc it once only
 554         GetTextExtent(_T("9999999"), &s_maxWidth, NULL);
 555     }
 556
 557     wxTextCtrl *text = new wxTextCtrl(this, wxID_ANY, wxEmptyString,
 558                                       wxDefaultPosition,
 559                                       wxSize(s_maxWidth, wxDefaultCoord),
 560                                       wxTE_READONLY);
 561     return text;
 562 }
 563
 564 wxSizer *TextWidgetsPage::CreateTextWithLabelSizer(const wxString& label,
 565                                                  wxTextCtrl *text,
 566                                                  const wxString& label2,
 567                                                  wxTextCtrl *text2)
 568 {
 569     wxSizer *sizerRow = new wxBoxSizer(wxHORIZONTAL);
 570     sizerRow->Add(new wxStaticText(this, wxID_ANY, label), 0,
 571                   wxALIGN_CENTRE_VERTICAL | wxRIGHT, 5);
 572     sizerRow->Add(text, 0, wxALIGN_CENTRE_VERTICAL);
 573     if ( text2 )
 574     {
 575         sizerRow->Add(new wxStaticText(this, wxID_ANY, label2), 0,
 576                       wxALIGN_CENTRE_VERTICAL | wxLEFT | wxRIGHT, 5);
 577         sizerRow->Add(text2, 0, wxALIGN_CENTRE_VERTICAL);
 578     }
 579
 580     return sizerRow;
 581 }
 582
 583 // ----------------------------------------------------------------------------
 584 // operations
 585 // ----------------------------------------------------------------------------
 586
 587 void TextWidgetsPage::Reset()
 588 {
 589     m_radioTextLines->SetSelection(DEFAULTS.textLines);
 590
 591     m_chkPassword->SetValue(DEFAULTS.password);
 592     m_chkReadonly->SetValue(DEFAULTS.readonly);
 593
 594     m_radioWrap->SetSelection(DEFAULTS.wrapStyle);
 595
 596 #ifdef __WXMSW__
 597     m_radioKind->SetSelection(DEFAULTS.textKind);
 598 #endif // __WXMSW__
 599 }
 600
 601 void TextWidgetsPage::CreateText()
 602 {
 603     int flags = ms_defaultFlags;
 604     switch ( m_radioTextLines->GetSelection() )
 605     {
 606         default:
 607             wxFAIL_MSG( _T("unexpected lines radio box selection") );
 608
 609         case TextLines_Single:
 610             break;
 611
 612         case TextLines_Multi:
 613             flags |= wxTE_MULTILINE;
 614             m_chkPassword->SetValue(false);
 615             break;
 616     }
 617
 618     if ( m_chkPassword->GetValue() )
 619         flags |= wxTE_PASSWORD;
 620     if ( m_chkReadonly->GetValue() )
 621         flags |= wxTE_READONLY;
 622
 623     switch ( m_radioWrap->GetSelection() )
 624     {
 625         default:
 626             wxFAIL_MSG( _T("unexpected wrap style radio box selection") );
 627
 628         case WrapStyle_None:
 629             flags |= wxTE_DONTWRAP; // same as wxHSCROLL
 630             break;
 631
 632         case WrapStyle_Word:
 633             flags |= wxTE_WORDWRAP;
 634             break;
 635
 636         case WrapStyle_Char:
 637             flags |= wxTE_CHARWRAP;
 638             break;
 639
 640         case WrapStyle_Best:
 641             // this is default but use symbolic file name for consistency
 642             flags |= wxTE_BESTWRAP;
 643             break;
 644     }
 645
 646 #ifdef __WXMSW__
 647     switch ( m_radioKind->GetSelection() )
 648     {
 649         default:
 650             wxFAIL_MSG( _T("unexpected kind radio box selection") );
 651
 652         case TextKind_Plain:
 653             break;
 654
 655         case TextKind_Rich:
 656             flags |= wxTE_RICH;
 657             break;
 658
 659         case TextKind_Rich2:
 660             flags |= wxTE_RICH2;
 661             break;
 662     }
 663 #endif // __WXMSW__
 664
 665     wxString valueOld;
 666     if ( m_text )
 667     {
 668         valueOld = m_text->GetValue();
 669
 670         m_sizerText->Detach( m_text );
 671         delete m_text;
 672     }
 673     else
 674     {
 675         valueOld = _T("Hello, Universe!");
 676     }
 677
 678     m_text = new WidgetsTextCtrl(this, TextPage_Textctrl, valueOld, flags);
 679
 680     // cast to int needed to silence gcc warning about different enums
 681     m_sizerText->Add(m_text, 1, wxALL |
 682                      (flags & wxTE_MULTILINE ? (int)wxGROW
 683                                              : wxALIGN_TOP), 5);
 684     m_sizerText->Layout();
 685 }
 686
 687 // ----------------------------------------------------------------------------
 688 // event handlers
 689 // ----------------------------------------------------------------------------
 690
 691 void TextWidgetsPage::OnIdle(wxIdleEvent& WXUNUSED(event))
 692 {
 693     // update all info texts
 694
 695     if ( m_textPosCur )
 696     {
 697         long posCur = m_text->GetInsertionPoint();
 698         if ( posCur != m_posCur )
 699         {
 700             m_textPosCur->Clear();
 701             m_textRowCur->Clear();
 702             m_textColCur->Clear();
 703
 704             long col, row;
 705             m_text->PositionToXY(posCur, &col, &row);
 706
 707             *m_textPosCur << posCur;
 708             *m_textRowCur << row;
 709             *m_textColCur << col;
 710
 711             m_posCur = posCur;
 712         }
 713     }
 714
 715     if ( m_textPosLast )
 716     {
 717         long posLast = m_text->GetLastPosition();
 718         if ( posLast != m_posLast )
 719         {
 720             m_textPosLast->Clear();
 721             *m_textPosLast << posLast;
 722
 723             m_posLast = posLast;
 724         }
 725     }
 726
 727     if ( m_textLineLast )
 728     {
 729         m_textLineLast->SetValue(
 730                 wxString::Format(_T("%d"), m_text->GetNumberOfLines()) );
 731     }
 732
 733     if ( m_textSelFrom && m_textSelTo )
 734     {
 735         long selFrom, selTo;
 736         m_text->GetSelection(&selFrom, &selTo);
 737         if ( selFrom != m_selFrom )
 738         {
 739             m_textSelFrom->Clear();
 740             *m_textSelFrom << selFrom;
 741
 742             m_selFrom = selFrom;
 743         }
 744
 745         if ( selTo != m_selTo )
 746         {
 747             m_textSelTo->Clear();
 748             *m_textSelTo << selTo;
 749
 750             m_selTo = selTo;
 751         }
 752     }
 753
 754     if ( m_textRange )
 755     {
 756         wxString range = m_text->GetRange(10, 20);
 757         if ( range != m_range10_20 )
 758         {
 759             m_range10_20 = range;
 760             m_textRange->SetValue(range);
 761         }
 762     }
 763 }
 764
 765 void TextWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
 766 {
 767     Reset();
 768
 769     CreateText();
 770 }
 771
 772 void TextWidgetsPage::OnButtonSet(wxCommandEvent& WXUNUSED(event))
 773 {
 774     m_text->SetValue(m_text->GetWindowStyle() & wxTE_MULTILINE
 775                         ? _T("Here,\nthere and\neverywhere")
 776                         : _T("Yellow submarine"));
 777
 778     m_text->SetFocus();
 779 }
 780
 781 void TextWidgetsPage::OnButtonAdd(wxCommandEvent& WXUNUSED(event))
 782 {
 783     if ( m_text->GetWindowStyle() & wxTE_MULTILINE )
 784     {
 785         m_text->AppendText(_T("We all live in a\n"));
 786     }
 787
 788     m_text->AppendText(_T("Yellow submarine"));
 789 }
 790
 791 void TextWidgetsPage::OnButtonInsert(wxCommandEvent& WXUNUSED(event))
 792 {
 793     m_text->WriteText(_T("Is there anybody going to listen to my story"));
 794     if ( m_text->GetWindowStyle() & wxTE_MULTILINE )
 795     {
 796         m_text->WriteText(_T("\nall about the girl who came to stay"));
 797     }
 798 }
 799
 800 void TextWidgetsPage::OnButtonClear(wxCommandEvent& WXUNUSED(event))
 801 {
 802     m_text->Clear();
 803     m_text->SetFocus();
 804 }
 805
 806 void TextWidgetsPage::OnButtonLoad(wxCommandEvent& WXUNUSED(event))
 807 {
 808     // search for the file in several dirs where it's likely to be
 809     wxPathList pathlist;
 810     pathlist.Add(_T("."));
 811     pathlist.Add(_T(".."));
 812     pathlist.Add(_T("../../../samples/widgets"));
 813
 814     wxString filename = pathlist.FindValidPath(_T("textctrl.cpp"));
 815     if ( !filename )
 816     {
 817         wxLogError(_T("File textctrl.cpp not found."));
 818     }
 819     else // load it
 820     {
 821         wxStopWatch sw;
 822         if ( !m_text->LoadFile(filename) )
 823         {
 824             // this is not supposed to happen ...
 825             wxLogError(_T("Error loading file."));
 826         }
 827         else
 828         {
 829             long elapsed = sw.Time();
 830             wxLogMessage(_T("Loaded file '%s' in %lu.%us"),
 831                          filename.c_str(), elapsed / 1000,
 832                          (unsigned int) elapsed % 1000);
 833         }
 834     }
 835 }
 836
 837 void TextWidgetsPage::OnUpdateUIClearButton(wxUpdateUIEvent& event)
 838 {
 839     event.Enable(!m_text->GetValue().empty());
 840 }
 841
 842 void TextWidgetsPage::OnUpdateUIWrapLinesCheckbox(wxUpdateUIEvent& event)
 843 {
 844     event.Enable( !IsSingleLine() );
 845 }
 846
 847 void TextWidgetsPage::OnUpdateUIPasswordCheckbox(wxUpdateUIEvent& event)
 848 {
 849     // can't put multiline control in password mode
 850     event.Enable( IsSingleLine() );
 851 }
 852
 853 void TextWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
 854 {
 855     event.Enable( (m_radioTextLines->GetSelection() != DEFAULTS.textLines) ||
 856 #ifdef __WXMSW__
 857                   (m_radioKind->GetSelection() != DEFAULTS.textKind) ||
 858 #endif // __WXMSW__
 859                   (m_chkReadonly->GetValue() != DEFAULTS.readonly) ||
 860                   (m_chkPassword->GetValue() != DEFAULTS.password) ||
 861                   (m_radioWrap->GetSelection() != DEFAULTS.wrapStyle) );
 862 }
 863
 864 void TextWidgetsPage::OnText(wxCommandEvent& WXUNUSED(event))
 865 {
 866     // small hack to suppress the very first message: by then the logging is
 867     // not yet redirected and so initial setting of the text value results in
 868     // an annoying message box
 869     static bool s_firstTime = true;
 870     if ( s_firstTime )
 871     {
 872         s_firstTime = false;
 873         return;
 874     }
 875
 876     wxLogMessage(_T("Text ctrl value changed"));
 877 }
 878
 879 void TextWidgetsPage::OnTextEnter(wxCommandEvent& event)
 880 {
 881     wxLogMessage(_T("Text entered: '%s'"), event.GetString().c_str());
 882     event.Skip();
 883 }
 884
 885 void TextWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& WXUNUSED(event))
 886 {
 887     CreateText();
 888 }
 889
 890 void TextWidgetsPage::OnStreamRedirector(wxCommandEvent& WXUNUSED(event))
 891 {
 892 #if wxHAS_TEXT_WINDOW_STREAM
 893     wxStreamToTextRedirector redirect(m_text);
 894     wxString str( _T("Outputed to cout, appears in wxTextCtrl!") );
 895     wxSTD cout << str << wxSTD endl;
 896 #else
 897     wxMessageBox(_T("This wxWidgets build does not support wxStreamToTextRedirector"));
 898 #endif
 899 }