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::HitTest return values
 133 // ----------------------------------------------------------------------------
 134
 135 // the point asked is ...
 136 enum wxTextCtrlHitTestResult
 137 {
 138     wxTE_HT_UNKNOWN = -2,   // this means HitTest() is simply not implemented
 139     wxTE_HT_BEFORE,         // either to the left or upper
 140     wxTE_HT_ON_TEXT,        // directly on
 141     wxTE_HT_BELOW,          // below [the last line]
 142     wxTE_HT_BEYOND          // after [the end of line]
 143 };
 144 // ... the character returned
 145
 146 // ----------------------------------------------------------------------------
 147 // Types for wxTextAttr
 148 // ----------------------------------------------------------------------------
 149
 150 // Alignment
 151
 152 enum wxTextAttrAlignment
 153 {
 154     wxTEXT_ALIGNMENT_DEFAULT,
 155     wxTEXT_ALIGNMENT_LEFT,
 156     wxTEXT_ALIGNMENT_CENTRE,
 157     wxTEXT_ALIGNMENT_CENTER = wxTEXT_ALIGNMENT_CENTRE,
 158     wxTEXT_ALIGNMENT_RIGHT,
 159     wxTEXT_ALIGNMENT_JUSTIFIED
 160 };
 161
 162 // Flags to indicate which attributes are being applied
 163
 164 #define wxTEXT_ATTR_TEXT_COLOUR             0x0001
 165 #define wxTEXT_ATTR_BACKGROUND_COLOUR       0x0002
 166 #define wxTEXT_ATTR_FONT_FACE               0x0004
 167 #define wxTEXT_ATTR_FONT_SIZE               0x0008
 168 #define wxTEXT_ATTR_FONT_WEIGHT             0x0010
 169 #define wxTEXT_ATTR_FONT_ITALIC             0x0020
 170 #define wxTEXT_ATTR_FONT_UNDERLINE          0x0040
 171 #define wxTEXT_ATTR_FONT \
 172   ( wxTEXT_ATTR_FONT_FACE | wxTEXT_ATTR_FONT_SIZE | wxTEXT_ATTR_FONT_WEIGHT | \
 173     wxTEXT_ATTR_FONT_ITALIC | wxTEXT_ATTR_FONT_UNDERLINE )
 174 #define wxTEXT_ATTR_ALIGNMENT               0x0080
 175 #define wxTEXT_ATTR_LEFT_INDENT             0x0100
 176 #define wxTEXT_ATTR_RIGHT_INDENT            0x0200
 177 #define wxTEXT_ATTR_TABS                    0x0400
 178
 179 // ----------------------------------------------------------------------------
 180 // wxTextAttr: a structure containing the visual attributes of a text
 181 // ----------------------------------------------------------------------------
 182
 183 class WXDLLEXPORT wxTextAttr
 184 {
 185 public:
 186     // ctors
 187     wxTextAttr() { Init(); }
 188     wxTextAttr(const wxColour& colText,
 189                const wxColour& colBack = wxNullColour,
 190                const wxFont& font = wxNullFont,
 191                wxTextAttrAlignment alignment = wxTEXT_ALIGNMENT_DEFAULT);
 192
 193     // operations
 194     void Init();
 195
 196     // merges the attributes of the base and the overlay objects and returns
 197     // the result; the parameter attributes take precedence
 198     //
 199     // WARNING: the order of arguments is the opposite of Combine()
 200     static wxTextAttr Merge(const wxTextAttr& base, const wxTextAttr& overlay)
 201     {
 202         return Combine(overlay, base, NULL);
 203     }
 204
 205     // merges the attributes of this object and overlay
 206     void Merge(const wxTextAttr& overlay)
 207     {
 208         *this = Merge(*this, overlay);
 209     }
 210
 211
 212     // operators
 213     void operator= (const wxTextAttr& attr);
 214
 215     // setters
 216     void SetTextColour(const wxColour& colText) { m_colText = colText; m_flags |= wxTEXT_ATTR_TEXT_COLOUR; }
 217     void SetBackgroundColour(const wxColour& colBack) { m_colBack = colBack; m_flags |= wxTEXT_ATTR_BACKGROUND_COLOUR; }
 218     void SetFont(const wxFont& font, long flags = wxTEXT_ATTR_FONT) { m_font = font; m_flags |= flags; }
 219     void SetAlignment(wxTextAttrAlignment alignment) { m_textAlignment = alignment; m_flags |= wxTEXT_ATTR_ALIGNMENT; }
 220     void SetTabs(const wxArrayInt& tabs) { m_tabs = tabs; m_flags |= wxTEXT_ATTR_TABS; }
 221     void SetLeftIndent(int indent, int subIndent = 0) { m_leftIndent = indent; m_leftSubIndent = subIndent; m_flags |= wxTEXT_ATTR_LEFT_INDENT; }
 222     void SetRightIndent(int indent) { m_rightIndent = indent; m_flags |= wxTEXT_ATTR_RIGHT_INDENT; }
 223     void SetFlags(long flags) { m_flags = flags; }
 224
 225     // accessors
 226     bool HasTextColour() const { return m_colText.Ok() && HasFlag(wxTEXT_ATTR_TEXT_COLOUR) ; }
 227     bool HasBackgroundColour() const { return m_colBack.Ok() && HasFlag(wxTEXT_ATTR_BACKGROUND_COLOUR) ; }
 228     bool HasFont() const { return m_font.Ok() && HasFlag(wxTEXT_ATTR_FONT) ; }
 229     bool HasAlignment() const { return (m_textAlignment != wxTEXT_ALIGNMENT_DEFAULT) || ((m_flags & wxTEXT_ATTR_ALIGNMENT) != 0) ; }
 230     bool HasTabs() const { return (m_flags & wxTEXT_ATTR_TABS) != 0 ; }
 231     bool HasLeftIndent() const { return (m_flags & wxTEXT_ATTR_LEFT_INDENT) != 0 ; }
 232     bool HasRightIndent() const { return (m_flags & wxTEXT_ATTR_RIGHT_INDENT) != 0 ; }
 233     bool HasFlag(long flag) const { return (m_flags & flag) != 0; }
 234
 235     const wxColour& GetTextColour() const { return m_colText; }
 236     const wxColour& GetBackgroundColour() const { return m_colBack; }
 237     const wxFont& GetFont() const { return m_font; }
 238     wxTextAttrAlignment GetAlignment() const { return m_textAlignment; }
 239     const wxArrayInt& GetTabs() const { return m_tabs; }
 240     long GetLeftIndent() const { return m_leftIndent; }
 241     long GetLeftSubIndent() const { return m_leftSubIndent; }
 242     long GetRightIndent() const { return m_rightIndent; }
 243     long GetFlags() const { return m_flags; }
 244
 245     // returns false if we have any attributes set, true otherwise
 246     bool IsDefault() const
 247     {
 248         return !HasTextColour() && !HasBackgroundColour() && !HasFont() && !HasAlignment() &&
 249                !HasTabs() && !HasLeftIndent() && !HasRightIndent() ;
 250     }
 251
 252     // return the attribute having the valid font and colours: it uses the
 253     // attributes set in attr and falls back first to attrDefault and then to
 254     // the text control font/colours for those attributes which are not set
 255     static wxTextAttr Combine(const wxTextAttr& attr,
 256                               const wxTextAttr& attrDef,
 257                               const wxTextCtrlBase *text);
 258
 259 private:
 260     long                m_flags;
 261     wxColour            m_colText,
 262                         m_colBack;
 263     wxFont              m_font;
 264     wxTextAttrAlignment m_textAlignment;
 265     wxArrayInt          m_tabs; // array of int: tab stops in 1/10 mm
 266     int                 m_leftIndent; // left indent in 1/10 mm
 267     int                 m_leftSubIndent; // left indent for all but the first
 268                                          // line in a paragraph relative to the
 269                                          // first line, in 1/10 mm
 270     int                 m_rightIndent; // right indent in 1/10 mm
 271 };
 272
 273 // ----------------------------------------------------------------------------
 274 // wxTextCtrl: a single or multiple line text zone where user can enter and
 275 // edit text
 276 // ----------------------------------------------------------------------------
 277
 278 class WXDLLEXPORT wxTextCtrlBase : public wxControl
 279 #if wxHAS_TEXT_WINDOW_STREAM
 280                                  , public wxSTD streambuf
 281 #endif
 282
 283 {
 284 public:
 285     // creation
 286     // --------
 287
 288     wxTextCtrlBase(){}
 289     virtual ~wxTextCtrlBase(){}
 290
 291     // accessors
 292     // ---------
 293
 294     virtual wxString GetValue() const = 0;
 295     virtual void SetValue(const wxString& value) = 0;
 296
 297     virtual wxString GetRange(long from, long to) const;
 298
 299     virtual int GetLineLength(long lineNo) const = 0;
 300     virtual wxString GetLineText(long lineNo) const = 0;
 301     virtual int GetNumberOfLines() const = 0;
 302
 303     virtual bool IsModified() const = 0;
 304     virtual bool IsEditable() const = 0;
 305
 306     // more readable flag testing methods
 307     bool IsSingleLine() const { return !HasFlag(wxTE_MULTILINE); }
 308     bool IsMultiLine() const { return !IsSingleLine(); }
 309
 310     // If the return values from and to are the same, there is no selection.
 311     virtual void GetSelection(long* from, long* to) const = 0;
 312
 313     virtual wxString GetStringSelection() const;
 314
 315     // operations
 316     // ----------
 317
 318     // editing
 319     virtual void Clear() = 0;
 320     virtual void Replace(long from, long to, const wxString& value) = 0;
 321     virtual void Remove(long from, long to) = 0;
 322
 323     // load/save the controls contents from/to the file
 324     virtual bool LoadFile(const wxString& file);
 325     virtual bool SaveFile(const wxString& file = wxEmptyString);
 326
 327     // sets/clears the dirty flag
 328     virtual void MarkDirty() = 0;
 329     virtual void DiscardEdits() = 0;
 330     void SetModified(bool modified)
 331     {
 332         if ( modified )
 333             MarkDirty();
 334         else
 335             DiscardEdits();
 336     }
 337
 338     // set the max number of characters which may be entered in a single line
 339     // text control
 340     virtual void SetMaxLength(unsigned long WXUNUSED(len)) { }
 341
 342     // writing text inserts it at the current position, appending always
 343     // inserts it at the end
 344     virtual void WriteText(const wxString& text) = 0;
 345     virtual void AppendText(const wxString& text) = 0;
 346
 347     // insert the character which would have resulted from this key event,
 348     // return true if anything has been inserted
 349     virtual bool EmulateKeyPress(const wxKeyEvent& event);
 350
 351     // text control under some platforms supports the text styles: these
 352     // methods allow to apply the given text style to the given selection or to
 353     // set/get the style which will be used for all appended text
 354     virtual bool SetStyle(long start, long end, const wxTextAttr& style);
 355     virtual bool GetStyle(long position, wxTextAttr& style);
 356     virtual bool SetDefaultStyle(const wxTextAttr& style);
 357     virtual const wxTextAttr& GetDefaultStyle() const;
 358
 359     // translate between the position (which is just an index in the text ctrl
 360     // considering all its contents as a single strings) and (x, y) coordinates
 361     // which represent column and line.
 362     virtual long XYToPosition(long x, long y) const = 0;
 363     virtual bool PositionToXY(long pos, long *x, long *y) const = 0;
 364
 365     virtual void ShowPosition(long pos) = 0;
 366
 367     // find the character at position given in pixels
 368     //
 369     // NB: pt is in device coords (not adjusted for the client area origin nor
 370     //     scrolling)
 371     virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt, long *pos) const;
 372     virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt,
 373                                             wxTextCoord *col,
 374                                             wxTextCoord *row) const;
 375
 376     // Clipboard operations
 377     virtual void Copy() = 0;
 378     virtual void Cut() = 0;
 379     virtual void Paste() = 0;
 380
 381     virtual bool CanCopy() const;
 382     virtual bool CanCut() const;
 383     virtual bool CanPaste() const;
 384
 385     // Undo/redo
 386     virtual void Undo() = 0;
 387     virtual void Redo() = 0;
 388
 389     virtual bool CanUndo() const = 0;
 390     virtual bool CanRedo() const = 0;
 391
 392     // Insertion point
 393     virtual void SetInsertionPoint(long pos) = 0;
 394     virtual void SetInsertionPointEnd() = 0;
 395     virtual long GetInsertionPoint() const = 0;
 396     virtual wxTextPos GetLastPosition() const = 0;
 397
 398     virtual void SetSelection(long from, long to) = 0;
 399     virtual void SelectAll();
 400     virtual void SetEditable(bool editable) = 0;
 401
 402     // stream-like insertion operators: these are always available, whether we
 403     // were, or not, compiled with streambuf support
 404     wxTextCtrl& operator<<(const wxString& s);
 405     wxTextCtrl& operator<<(int i);
 406     wxTextCtrl& operator<<(long i);
 407     wxTextCtrl& operator<<(float f);
 408     wxTextCtrl& operator<<(double d);
 409     wxTextCtrl& operator<<(const wxChar c);
 410
 411     // do the window-specific processing after processing the update event
 412     virtual void DoUpdateWindowUI(wxUpdateUIEvent& event);
 413
 414     virtual bool ShouldInheritColours() const { return false; }
 415
 416 protected:
 417     // override streambuf method
 418 #if wxHAS_TEXT_WINDOW_STREAM
 419     int overflow(int i);
 420 #endif // wxHAS_TEXT_WINDOW_STREAM
 421
 422     // the name of the last file loaded with LoadFile() which will be used by
 423     // SaveFile() by default
 424     wxString m_filename;
 425
 426     // the text style which will be used for any new text added to the control
 427     wxTextAttr m_defaultStyle;
 428
 429     DECLARE_NO_COPY_CLASS(wxTextCtrlBase)
 430     DECLARE_ABSTRACT_CLASS(wxTextCtrlBase)
 431 };
 432
 433 // ----------------------------------------------------------------------------
 434 // include the platform-dependent class definition
 435 // ----------------------------------------------------------------------------
 436
 437 #if defined(__WXX11__)
 438     #include "wx/x11/textctrl.h"
 439 #elif defined(__WXUNIVERSAL__)
 440     #include "wx/univ/textctrl.h"
 441 #elif defined(__SMARTPHONE__) && defined(__WXWINCE__)
 442     #include "wx/msw/wince/textctrlce.h"
 443 #elif defined(__WXMSW__)
 444     #include "wx/msw/textctrl.h"
 445 #elif defined(__WXMOTIF__)
 446     #include "wx/motif/textctrl.h"
 447 #elif defined(__WXGTK20__)
 448     #include "wx/gtk/textctrl.h"
 449 #elif defined(__WXGTK__)
 450     #include "wx/gtk1/textctrl.h"
 451 #elif defined(__WXMAC__)
 452     #include "wx/mac/textctrl.h"
 453 #elif defined(__WXCOCOA__)
 454     #include "wx/cocoa/textctrl.h"
 455 #elif defined(__WXPM__)
 456     #include "wx/os2/textctrl.h"
 457 #endif
 458
 459 // ----------------------------------------------------------------------------
 460 // wxTextCtrl events
 461 // ----------------------------------------------------------------------------
 462
 463 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 464
 465 BEGIN_DECLARE_EVENT_TYPES()
 466     DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_UPDATED, 7)
 467     DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_ENTER, 8)
 468     DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_URL, 13)
 469     DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_MAXLEN, 14)
 470 END_DECLARE_EVENT_TYPES()
 471
 472 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 473
 474 class WXDLLEXPORT wxTextUrlEvent : public wxCommandEvent
 475 {
 476 public:
 477     wxTextUrlEvent(int winid, const wxMouseEvent& evtMouse,
 478                    long start, long end)
 479         : wxCommandEvent(wxEVT_COMMAND_TEXT_URL, winid)
 480         , m_evtMouse(evtMouse), m_start(start), m_end(end)
 481         { }
 482
 483     // get the mouse event which happend over the URL
 484     const wxMouseEvent& GetMouseEvent() const { return m_evtMouse; }
 485
 486     // get the start of the URL
 487     long GetURLStart() const { return m_start; }
 488
 489     // get the end of the URL
 490     long GetURLEnd() const { return m_end; }
 491
 492 protected:
 493     // the corresponding mouse event
 494     wxMouseEvent m_evtMouse;
 495
 496     // the start and end indices of the URL in the text control
 497     long m_start,
 498          m_end;
 499
 500 private:
 501     DECLARE_DYNAMIC_CLASS_NO_COPY(wxTextUrlEvent)
 502
 503 public:
 504     // for wxWin RTTI only, don't use
 505     wxTextUrlEvent() : m_evtMouse(), m_start(0), m_end(0) { }
 506 };
 507
 508 typedef void (wxEvtHandler::*wxTextUrlEventFunction)(wxTextUrlEvent&);
 509
 510 #define wxTextEventHandler(func) wxCommandEventHandler(func)
 511 #define wxTextUrlEventHandler(func) \
 512     (wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent(wxTextUrlEventFunction, &func)
 513
 514 #define wx__DECLARE_TEXTEVT(evt, id, fn) \
 515     wx__DECLARE_EVT1(wxEVT_COMMAND_TEXT_ ## evt, id, wxTextEventHandler(fn))
 516
 517 #define wx__DECLARE_TEXTURLEVT(evt, id, fn) \
 518     wx__DECLARE_EVT1(wxEVT_COMMAND_TEXT_ ## evt, id, wxTextUrlEventHandler(fn))
 519
 520 #define EVT_TEXT(id, fn) wx__DECLARE_TEXTEVT(UPDATED, id, fn)
 521 #define EVT_TEXT_ENTER(id, fn) wx__DECLARE_TEXTEVT(ENTER, id, fn)
 522 #define EVT_TEXT_URL(id, fn) wx__DECLARE_TEXTURLEVT(URL, id, fn)
 523 #define EVT_TEXT_MAXLEN(id, fn) wx__DECLARE_TEXTEVT(MAXLEN, id, fn)
 524
 525 #if wxHAS_TEXT_WINDOW_STREAM
 526
 527 // ----------------------------------------------------------------------------
 528 // wxStreamToTextRedirector: this class redirects all data sent to the given
 529 // C++ stream to the wxTextCtrl given to its ctor during its lifetime.
 530 // ----------------------------------------------------------------------------
 531
 532 class WXDLLEXPORT wxStreamToTextRedirector
 533 {
 534 private:
 535     void Init(wxTextCtrl *text)
 536     {
 537         m_sbufOld = m_ostr.rdbuf();
 538         m_ostr.rdbuf(text);
 539     }
 540
 541 public:
 542     wxStreamToTextRedirector(wxTextCtrl *text)
 543         : m_ostr(wxSTD cout)
 544     {
 545         Init(text);
 546     }
 547
 548     wxStreamToTextRedirector(wxTextCtrl *text, wxSTD ostream *ostr)
 549         : m_ostr(*ostr)
 550     {
 551         Init(text);
 552     }
 553
 554     ~wxStreamToTextRedirector()
 555     {
 556         m_ostr.rdbuf(m_sbufOld);
 557     }
 558
 559 private:
 560     // the stream we're redirecting
 561     wxSTD ostream&   m_ostr;
 562
 563     // the old streambuf (before we changed it)
 564     wxSTD streambuf *m_sbufOld;
 565 };
 566
 567 #endif // wxHAS_TEXT_WINDOW_STREAM
 568
 569 #endif // wxUSE_TEXTCTRL
 570
 571 #endif
 572     // _WX_TEXTCTRL_H_BASE_