include/wx/textctrl.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/textctrl.h
   3 // Purpose:     wxTextCtrlBase class - the interface of wxTextCtrl
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     13.07.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Vadim Zeitlin
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_TEXTCTRL_H_BASE_
  13 #define _WX_TEXTCTRL_H_BASE_
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 #include "wx/defs.h"
  20
  21 #if wxUSE_TEXTCTRL
  22
  23 #include "wx/control.h"         // the base class
  24 #include "wx/dynarray.h"        // wxArrayInt
  25 #include "wx/gdicmn.h"          // wxPoint
  26
  27 // Open Watcom 1.3 does allow only ios::rdbuf() while
  28 // we want something with streambuf parameter
  29 // Also, can't use streambuf if making or using a DLL :-(
  30
  31 #if defined(__WATCOMC__) || \
  32     defined(__MWERKS__) || \
  33     (defined(__WINDOWS__) && (defined(WXUSINGDLL) || defined(WXMAKINGDLL)))
  34     #define wxHAS_TEXT_WINDOW_STREAM 0
  35 #elif wxUSE_STD_IOSTREAM
  36     #include "wx/ioswrap.h"
  37     #define wxHAS_TEXT_WINDOW_STREAM 1
  38 #else
  39     #define wxHAS_TEXT_WINDOW_STREAM 0
  40 #endif
  41
  42 #if WXWIN_COMPATIBILITY_2_4 && !wxHAS_TEXT_WINDOW_STREAM
  43     // define old flag if one could use it somewhere
  44     #define NO_TEXT_WINDOW_STREAM
  45 #endif
  46
  47 class WXDLLEXPORT wxTextCtrl;
  48 class WXDLLEXPORT wxTextCtrlBase;
  49
  50 // ----------------------------------------------------------------------------
  51 // wxTextCtrl types
  52 // ----------------------------------------------------------------------------
  53
  54 // wxTextPos is the position in the text
  55 typedef long wxTextPos;
  56
  57 // wxTextCoord is the line or row number (which should have been unsigned but
  58 // is long for backwards compatibility)
  59 typedef long wxTextCoord;
  60
  61 // ----------------------------------------------------------------------------
  62 // constants
  63 // ----------------------------------------------------------------------------
  64
  65 extern WXDLLEXPORT_DATA(const wxChar) wxTextCtrlNameStr[];
  66
  67 // this is intentionally not enum to avoid warning fixes with
  68 // typecasting from enum type to wxTextCoord
  69 const wxTextCoord wxOutOfRangeTextCoord = -1;
  70 const wxTextCoord wxInvalidTextCoord    = -2;
  71
  72 // ----------------------------------------------------------------------------
  73 // wxTextCtrl style flags
  74 // ----------------------------------------------------------------------------
  75
  76 #define wxTE_NO_VSCROLL     0x0002
  77 #define wxTE_AUTO_SCROLL    0x0008
  78
  79 #define wxTE_READONLY       0x0010
  80 #define wxTE_MULTILINE      0x0020
  81 #define wxTE_PROCESS_TAB    0x0040
  82
  83 // alignment flags
  84 #define wxTE_LEFT           0x0000                    // 0x0000
  85 #define wxTE_CENTER         wxALIGN_CENTER_HORIZONTAL // 0x0100
  86 #define wxTE_RIGHT          wxALIGN_RIGHT             // 0x0200
  87 #define wxTE_CENTRE         wxTE_CENTER
  88
  89 // this style means to use RICHEDIT control and does something only under wxMSW
  90 // and Win32 and is silently ignored under all other platforms
  91 #define wxTE_RICH           0x0080
  92
  93 #define wxTE_PROCESS_ENTER  0x0400
  94 #define wxTE_PASSWORD       0x0800
  95
  96 // automatically detect the URLs and generate the events when mouse is
  97 // moved/clicked over an URL
  98 //
  99 // this is for Win32 richedit and wxGTK2 multiline controls only so far
 100 #define wxTE_AUTO_URL       0x1000
 101
 102 // by default, the Windows text control doesn't show the selection when it
 103 // doesn't have focus - use this style to force it to always show it
 104 #define wxTE_NOHIDESEL      0x2000
 105
 106 // use wxHSCROLL to not wrap text at all, wxTE_CHARWRAP to wrap it at any
 107 // position and wxTE_WORDWRAP to wrap at words boundary
 108 //
 109 // if no wrapping style is given at all, the control wraps at word boundary
 110 #define wxTE_DONTWRAP       wxHSCROLL
 111 #define wxTE_CHARWRAP       0x4000  // wrap at any position
 112 #define wxTE_WORDWRAP       0x0001  // wrap only at words boundaries
 113 #define wxTE_BESTWRAP       0x0000  // this is the default
 114
 115 #if WXWIN_COMPATIBILITY_2_6
 116     // obsolete synonym
 117     #define wxTE_LINEWRAP       wxTE_CHARWRAP
 118 #endif // WXWIN_COMPATIBILITY_2_6
 119
 120 // force using RichEdit version 2.0 or 3.0 instead of 1.0 (default) for
 121 // wxTE_RICH controls - can be used together with or instead of wxTE_RICH
 122 #define wxTE_RICH2          0x8000
 123
 124 // reuse wxTE_RICH2's value for CAPEDIT control on Windows CE
 125 #if defined(__SMARTPHONE__) || defined(__POCKETPC__)
 126 #define wxTE_CAPITALIZE     wxTE_RICH2
 127 #else
 128 #define wxTE_CAPITALIZE     0
 129 #endif
 130
 131 // ----------------------------------------------------------------------------
 132 // wxTextCtrl file types
 133 // ----------------------------------------------------------------------------
 134
 135 #define wxTEXT_TYPE_ANY     0
 136
 137 // ----------------------------------------------------------------------------
 138 // wxTextCtrl::HitTest return values
 139 // ----------------------------------------------------------------------------
 140
 141 // the point asked is ...
 142 enum wxTextCtrlHitTestResult
 143 {
 144     wxTE_HT_UNKNOWN = -2,   // this means HitTest() is simply not implemented
 145     wxTE_HT_BEFORE,         // either to the left or upper
 146     wxTE_HT_ON_TEXT,        // directly on
 147     wxTE_HT_BELOW,          // below [the last line]
 148     wxTE_HT_BEYOND          // after [the end of line]
 149 };
 150 // ... the character returned
 151
 152 // ----------------------------------------------------------------------------
 153 // Types for wxTextAttr
 154 // ----------------------------------------------------------------------------
 155
 156 // Alignment
 157
 158 enum wxTextAttrAlignment
 159 {
 160     wxTEXT_ALIGNMENT_DEFAULT,
 161     wxTEXT_ALIGNMENT_LEFT,
 162     wxTEXT_ALIGNMENT_CENTRE,
 163     wxTEXT_ALIGNMENT_CENTER = wxTEXT_ALIGNMENT_CENTRE,
 164     wxTEXT_ALIGNMENT_RIGHT,
 165     wxTEXT_ALIGNMENT_JUSTIFIED
 166 };
 167
 168 // Flags to indicate which attributes are being applied
 169
 170 #define wxTEXT_ATTR_TEXT_COLOUR             0x0001
 171 #define wxTEXT_ATTR_BACKGROUND_COLOUR       0x0002
 172 #define wxTEXT_ATTR_FONT_FACE               0x0004
 173 #define wxTEXT_ATTR_FONT_SIZE               0x0008
 174 #define wxTEXT_ATTR_FONT_WEIGHT             0x0010
 175 #define wxTEXT_ATTR_FONT_ITALIC             0x0020
 176 #define wxTEXT_ATTR_FONT_UNDERLINE          0x0040
 177 #define wxTEXT_ATTR_FONT \
 178   ( wxTEXT_ATTR_FONT_FACE | wxTEXT_ATTR_FONT_SIZE | wxTEXT_ATTR_FONT_WEIGHT | \
 179     wxTEXT_ATTR_FONT_ITALIC | wxTEXT_ATTR_FONT_UNDERLINE )
 180 #define wxTEXT_ATTR_ALIGNMENT               0x0080
 181 #define wxTEXT_ATTR_LEFT_INDENT             0x0100
 182 #define wxTEXT_ATTR_RIGHT_INDENT            0x0200
 183 #define wxTEXT_ATTR_TABS                    0x0400
 184
 185 // ----------------------------------------------------------------------------
 186 // wxTextAttr: a structure containing the visual attributes of a text
 187 // ----------------------------------------------------------------------------
 188
 189 class WXDLLEXPORT wxTextAttr
 190 {
 191 public:
 192     // ctors
 193     wxTextAttr() { Init(); }
 194     wxTextAttr(const wxColour& colText,
 195                const wxColour& colBack = wxNullColour,
 196                const wxFont& font = wxNullFont,
 197                wxTextAttrAlignment alignment = wxTEXT_ALIGNMENT_DEFAULT);
 198
 199     // operations
 200     void Init();
 201
 202     // merges the attributes of the base and the overlay objects and returns
 203     // the result; the parameter attributes take precedence
 204     //
 205     // WARNING: the order of arguments is the opposite of Combine()
 206     static wxTextAttr Merge(const wxTextAttr& base, const wxTextAttr& overlay)
 207     {
 208         return Combine(overlay, base, NULL);
 209     }
 210
 211     // merges the attributes of this object and overlay
 212     void Merge(const wxTextAttr& overlay)
 213     {
 214         *this = Merge(*this, overlay);
 215     }
 216
 217
 218     // operators
 219     void operator= (const wxTextAttr& attr);
 220
 221     // setters
 222     void SetTextColour(const wxColour& colText) { m_colText = colText; m_flags |= wxTEXT_ATTR_TEXT_COLOUR; }
 223     void SetBackgroundColour(const wxColour& colBack) { m_colBack = colBack; m_flags |= wxTEXT_ATTR_BACKGROUND_COLOUR; }
 224     void SetFont(const wxFont& font, long flags = wxTEXT_ATTR_FONT) { m_font = font; m_flags |= flags; }
 225     void SetAlignment(wxTextAttrAlignment alignment) { m_textAlignment = alignment; m_flags |= wxTEXT_ATTR_ALIGNMENT; }
 226     void SetTabs(const wxArrayInt& tabs) { m_tabs = tabs; m_flags |= wxTEXT_ATTR_TABS; }
 227     void SetLeftIndent(int indent, int subIndent = 0) { m_leftIndent = indent; m_leftSubIndent = subIndent; m_flags |= wxTEXT_ATTR_LEFT_INDENT; }
 228     void SetRightIndent(int indent) { m_rightIndent = indent; m_flags |= wxTEXT_ATTR_RIGHT_INDENT; }
 229     void SetFlags(long flags) { m_flags = flags; }
 230
 231     // accessors
 232     bool HasTextColour() const { return m_colText.Ok() && HasFlag(wxTEXT_ATTR_TEXT_COLOUR) ; }
 233     bool HasBackgroundColour() const { return m_colBack.Ok() && HasFlag(wxTEXT_ATTR_BACKGROUND_COLOUR) ; }
 234     bool HasFont() const { return m_font.Ok() && HasFlag(wxTEXT_ATTR_FONT) ; }
 235     bool HasAlignment() const { return (m_textAlignment != wxTEXT_ALIGNMENT_DEFAULT) || ((m_flags & wxTEXT_ATTR_ALIGNMENT) != 0) ; }
 236     bool HasTabs() const { return (m_flags & wxTEXT_ATTR_TABS) != 0 ; }
 237     bool HasLeftIndent() const { return (m_flags & wxTEXT_ATTR_LEFT_INDENT) != 0 ; }
 238     bool HasRightIndent() const { return (m_flags & wxTEXT_ATTR_RIGHT_INDENT) != 0 ; }
 239     bool HasFlag(long flag) const { return (m_flags & flag) != 0; }
 240
 241     const wxColour& GetTextColour() const { return m_colText; }
 242     const wxColour& GetBackgroundColour() const { return m_colBack; }
 243     const wxFont& GetFont() const { return m_font; }
 244     wxTextAttrAlignment GetAlignment() const { return m_textAlignment; }
 245     const wxArrayInt& GetTabs() const { return m_tabs; }
 246     long GetLeftIndent() const { return m_leftIndent; }
 247     long GetLeftSubIndent() const { return m_leftSubIndent; }
 248     long GetRightIndent() const { return m_rightIndent; }
 249     long GetFlags() const { return m_flags; }
 250
 251     // returns false if we have any attributes set, true otherwise
 252     bool IsDefault() const
 253     {
 254         return !HasTextColour() && !HasBackgroundColour() && !HasFont() && !HasAlignment() &&
 255                !HasTabs() && !HasLeftIndent() && !HasRightIndent() ;
 256     }
 257
 258     // return the attribute having the valid font and colours: it uses the
 259     // attributes set in attr and falls back first to attrDefault and then to
 260     // the text control font/colours for those attributes which are not set
 261     static wxTextAttr Combine(const wxTextAttr& attr,
 262                               const wxTextAttr& attrDef,
 263                               const wxTextCtrlBase *text);
 264
 265 private:
 266     long                m_flags;
 267     wxColour            m_colText,
 268                         m_colBack;
 269     wxFont              m_font;
 270     wxTextAttrAlignment m_textAlignment;
 271     wxArrayInt          m_tabs; // array of int: tab stops in 1/10 mm
 272     int                 m_leftIndent; // left indent in 1/10 mm
 273     int                 m_leftSubIndent; // left indent for all but the first
 274                                          // line in a paragraph relative to the
 275                                          // first line, in 1/10 mm
 276     int                 m_rightIndent; // right indent in 1/10 mm
 277 };
 278
 279 // ----------------------------------------------------------------------------
 280 // wxTextCtrl: a single or multiple line text zone where user can enter and
 281 // edit text
 282 // ----------------------------------------------------------------------------
 283
 284 class WXDLLEXPORT wxTextCtrlBase : public wxControl
 285 #if wxHAS_TEXT_WINDOW_STREAM
 286                                  , public wxSTD streambuf
 287 #endif
 288
 289 {
 290 public:
 291     // creation
 292     // --------
 293
 294     wxTextCtrlBase(){}
 295     virtual ~wxTextCtrlBase(){}
 296
 297     // accessors
 298     // ---------
 299
 300     virtual wxString GetValue() const = 0;
 301     virtual void SetValue(const wxString& value) = 0;
 302
 303     virtual wxString GetRange(long from, long to) const;
 304
 305     virtual int GetLineLength(long lineNo) const = 0;
 306     virtual wxString GetLineText(long lineNo) const = 0;
 307     virtual int GetNumberOfLines() const = 0;
 308
 309     virtual bool IsModified() const = 0;
 310     virtual bool IsEditable() const = 0;
 311
 312     // more readable flag testing methods
 313     bool IsSingleLine() const { return !HasFlag(wxTE_MULTILINE); }
 314     bool IsMultiLine() const { return !IsSingleLine(); }
 315
 316     // If the return values from and to are the same, there is no selection.
 317     virtual void GetSelection(long* from, long* to) const = 0;
 318
 319     virtual wxString GetStringSelection() const;
 320
 321     // operations
 322     // ----------
 323
 324     // editing
 325     virtual void Clear() = 0;
 326     virtual void Replace(long from, long to, const wxString& value) = 0;
 327     virtual void Remove(long from, long to) = 0;
 328
 329     // load/save the control's contents from/to a file
 330     bool LoadFile(const wxString& file, int fileType = wxTEXT_TYPE_ANY) { return DoLoadFile(file, fileType); }
 331     bool SaveFile(const wxString& file = wxEmptyString, int fileType = wxTEXT_TYPE_ANY);
 332
 333     // implementation for loading/saving
 334     virtual bool DoLoadFile(const wxString& file, int fileType);
 335     virtual bool DoSaveFile(const wxString& file, int fileType);
 336
 337     // sets/clears the dirty flag
 338     virtual void MarkDirty() = 0;
 339     virtual void DiscardEdits() = 0;
 340     void SetModified(bool modified)
 341     {
 342         if ( modified )
 343             MarkDirty();
 344         else
 345             DiscardEdits();
 346     }
 347
 348     // set the max number of characters which may be entered in a single line
 349     // text control
 350     virtual void SetMaxLength(unsigned long WXUNUSED(len)) { }
 351
 352     // writing text inserts it at the current position, appending always
 353     // inserts it at the end
 354     virtual void WriteText(const wxString& text) = 0;
 355     virtual void AppendText(const wxString& text) = 0;
 356
 357     // insert the character which would have resulted from this key event,
 358     // return true if anything has been inserted
 359     virtual bool EmulateKeyPress(const wxKeyEvent& event);
 360
 361     // text control under some platforms supports the text styles: these
 362     // methods allow to apply the given text style to the given selection or to
 363     // set/get the style which will be used for all appended text
 364     virtual bool SetStyle(long start, long end, const wxTextAttr& style);
 365     virtual bool GetStyle(long position, wxTextAttr& style);
 366     virtual bool SetDefaultStyle(const wxTextAttr& style);
 367     virtual const wxTextAttr& GetDefaultStyle() const;
 368
 369     // translate between the position (which is just an index in the text ctrl
 370     // considering all its contents as a single strings) and (x, y) coordinates
 371     // which represent column and line.
 372     virtual long XYToPosition(long x, long y) const = 0;
 373     virtual bool PositionToXY(long pos, long *x, long *y) const = 0;
 374
 375     virtual void ShowPosition(long pos) = 0;
 376
 377     // find the character at position given in pixels
 378     //
 379     // NB: pt is in device coords (not adjusted for the client area origin nor
 380     //     scrolling)
 381     virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt, long *pos) const;
 382     virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt,
 383                                             wxTextCoord *col,
 384                                             wxTextCoord *row) const;
 385
 386     // Clipboard operations
 387     virtual void Copy() = 0;
 388     virtual void Cut() = 0;
 389     virtual void Paste() = 0;
 390
 391     virtual bool CanCopy() const;
 392     virtual bool CanCut() const;
 393     virtual bool CanPaste() const;
 394
 395     // Undo/redo
 396     virtual void Undo() = 0;
 397     virtual void Redo() = 0;
 398
 399     virtual bool CanUndo() const = 0;
 400     virtual bool CanRedo() const = 0;
 401
 402     // Insertion point
 403     virtual void SetInsertionPoint(long pos) = 0;
 404     virtual void SetInsertionPointEnd() = 0;
 405     virtual long GetInsertionPoint() const = 0;
 406     virtual wxTextPos GetLastPosition() const = 0;
 407
 408     virtual void SetSelection(long from, long to) = 0;
 409     virtual void SelectAll();
 410     virtual void SetEditable(bool editable) = 0;
 411
 412     // stream-like insertion operators: these are always available, whether we
 413     // were, or not, compiled with streambuf support
 414     wxTextCtrl& operator<<(const wxString& s);
 415     wxTextCtrl& operator<<(int i);
 416     wxTextCtrl& operator<<(long i);
 417     wxTextCtrl& operator<<(float f);
 418     wxTextCtrl& operator<<(double d);
 419     wxTextCtrl& operator<<(const wxChar c);
 420
 421     // do the window-specific processing after processing the update event
 422     virtual void DoUpdateWindowUI(wxUpdateUIEvent& event);
 423
 424     virtual bool ShouldInheritColours() const { return false; }
 425
 426 protected:
 427     // override streambuf method
 428 #if wxHAS_TEXT_WINDOW_STREAM
 429     int overflow(int i);
 430 #endif // wxHAS_TEXT_WINDOW_STREAM
 431
 432     // the name of the last file loaded with LoadFile() which will be used by
 433     // SaveFile() by default
 434     wxString m_filename;
 435
 436     // the text style which will be used for any new text added to the control
 437     wxTextAttr m_defaultStyle;
 438
 439     DECLARE_NO_COPY_CLASS(wxTextCtrlBase)
 440     DECLARE_ABSTRACT_CLASS(wxTextCtrlBase)
 441 };
 442
 443 // ----------------------------------------------------------------------------
 444 // include the platform-dependent class definition
 445 // ----------------------------------------------------------------------------
 446
 447 #if defined(__WXX11__)
 448     #include "wx/x11/textctrl.h"
 449 #elif defined(__WXUNIVERSAL__)
 450     #include "wx/univ/textctrl.h"
 451 #elif defined(__SMARTPHONE__) && defined(__WXWINCE__)
 452     #include "wx/msw/wince/textctrlce.h"
 453 #elif defined(__WXMSW__)
 454     #include "wx/msw/textctrl.h"
 455 #elif defined(__WXMOTIF__)
 456     #include "wx/motif/textctrl.h"
 457 #elif defined(__WXGTK20__)
 458     #include "wx/gtk/textctrl.h"
 459 #elif defined(__WXGTK__)
 460     #include "wx/gtk1/textctrl.h"
 461 #elif defined(__WXMAC__)
 462     #include "wx/mac/textctrl.h"
 463 #elif defined(__WXCOCOA__)
 464     #include "wx/cocoa/textctrl.h"
 465 #elif defined(__WXPM__)
 466     #include "wx/os2/textctrl.h"
 467 #endif
 468
 469 // ----------------------------------------------------------------------------
 470 // wxTextCtrl events
 471 // ----------------------------------------------------------------------------
 472
 473 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 474
 475 BEGIN_DECLARE_EVENT_TYPES()
 476     DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_UPDATED, 7)
 477     DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_ENTER, 8)
 478     DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_URL, 13)
 479     DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_MAXLEN, 14)
 480 END_DECLARE_EVENT_TYPES()
 481
 482 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 483
 484 class WXDLLEXPORT wxTextUrlEvent : public wxCommandEvent
 485 {
 486 public:
 487     wxTextUrlEvent(int winid, const wxMouseEvent& evtMouse,
 488                    long start, long end)
 489         : wxCommandEvent(wxEVT_COMMAND_TEXT_URL, winid)
 490         , m_evtMouse(evtMouse), m_start(start), m_end(end)
 491         { }
 492
 493     // get the mouse event which happend over the URL
 494     const wxMouseEvent& GetMouseEvent() const { return m_evtMouse; }
 495
 496     // get the start of the URL
 497     long GetURLStart() const { return m_start; }
 498
 499     // get the end of the URL
 500     long GetURLEnd() const { return m_end; }
 501
 502 protected:
 503     // the corresponding mouse event
 504     wxMouseEvent m_evtMouse;
 505
 506     // the start and end indices of the URL in the text control
 507     long m_start,
 508          m_end;
 509
 510 private:
 511     DECLARE_DYNAMIC_CLASS_NO_COPY(wxTextUrlEvent)
 512
 513 public:
 514     // for wxWin RTTI only, don't use
 515     wxTextUrlEvent() : m_evtMouse(), m_start(0), m_end(0) { }
 516 };
 517
 518 typedef void (wxEvtHandler::*wxTextUrlEventFunction)(wxTextUrlEvent&);
 519
 520 #define wxTextEventHandler(func) wxCommandEventHandler(func)
 521 #define wxTextUrlEventHandler(func) \
 522     (wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent(wxTextUrlEventFunction, &func)
 523
 524 #define wx__DECLARE_TEXTEVT(evt, id, fn) \
 525     wx__DECLARE_EVT1(wxEVT_COMMAND_TEXT_ ## evt, id, wxTextEventHandler(fn))
 526
 527 #define wx__DECLARE_TEXTURLEVT(evt, id, fn) \
 528     wx__DECLARE_EVT1(wxEVT_COMMAND_TEXT_ ## evt, id, wxTextUrlEventHandler(fn))
 529
 530 #define EVT_TEXT(id, fn) wx__DECLARE_TEXTEVT(UPDATED, id, fn)
 531 #define EVT_TEXT_ENTER(id, fn) wx__DECLARE_TEXTEVT(ENTER, id, fn)
 532 #define EVT_TEXT_URL(id, fn) wx__DECLARE_TEXTURLEVT(URL, id, fn)
 533 #define EVT_TEXT_MAXLEN(id, fn) wx__DECLARE_TEXTEVT(MAXLEN, id, fn)
 534
 535 #if wxHAS_TEXT_WINDOW_STREAM
 536
 537 // ----------------------------------------------------------------------------
 538 // wxStreamToTextRedirector: this class redirects all data sent to the given
 539 // C++ stream to the wxTextCtrl given to its ctor during its lifetime.
 540 // ----------------------------------------------------------------------------
 541
 542 class WXDLLEXPORT wxStreamToTextRedirector
 543 {
 544 private:
 545     void Init(wxTextCtrl *text)
 546     {
 547         m_sbufOld = m_ostr.rdbuf();
 548         m_ostr.rdbuf(text);
 549     }
 550
 551 public:
 552     wxStreamToTextRedirector(wxTextCtrl *text)
 553         : m_ostr(wxSTD cout)
 554     {
 555         Init(text);
 556     }
 557
 558     wxStreamToTextRedirector(wxTextCtrl *text, wxSTD ostream *ostr)
 559         : m_ostr(*ostr)
 560     {
 561         Init(text);
 562     }
 563
 564     ~wxStreamToTextRedirector()
 565     {
 566         m_ostr.rdbuf(m_sbufOld);
 567     }
 568
 569 private:
 570     // the stream we're redirecting
 571     wxSTD ostream&   m_ostr;
 572
 573     // the old streambuf (before we changed it)
 574     wxSTD streambuf *m_sbufOld;
 575 };
 576
 577 #endif // wxHAS_TEXT_WINDOW_STREAM
 578
 579 #endif // wxUSE_TEXTCTRL
 580
 581 #endif
 582     // _WX_TEXTCTRL_H_BASE_