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