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