src/osx/carbon/textctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/carbon/textctrl.cpp
   3 // Purpose:     wxTextCtrl
   4 // Author:      Stefan Csomor
   5 // Modified by: Ryan Norton (MLTE GetLineLength and GetLineText)
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #if wxUSE_TEXTCTRL
  15
  16 #include "wx/textctrl.h"
  17
  18 #ifndef WX_PRECOMP
  19     #include "wx/intl.h"
  20     #include "wx/app.h"
  21     #include "wx/utils.h"
  22     #include "wx/dc.h"
  23     #include "wx/button.h"
  24     #include "wx/menu.h"
  25     #include "wx/settings.h"
  26     #include "wx/msgdlg.h"
  27     #include "wx/toplevel.h"
  28 #endif
  29
  30 #ifdef __DARWIN__
  31     #include <sys/types.h>
  32     #include <sys/stat.h>
  33 #else
  34     #include <stat.h>
  35 #endif
  36
  37 #if wxUSE_STD_IOSTREAM
  38     #if wxUSE_IOSTREAMH
  39         #include <fstream.h>
  40     #else
  41         #include <fstream>
  42     #endif
  43 #endif
  44
  45 #include "wx/filefn.h"
  46 #include "wx/sysopt.h"
  47 #include "wx/thread.h"
  48
  49 #include "wx/osx/private.h"
  50 #include "wx/osx/carbon/private/mactext.h"
  51
  52 class wxMacFunctor
  53 {
  54 public :
  55     wxMacFunctor() {}
  56     virtual ~wxMacFunctor() {}
  57
  58     virtual void* operator()() = 0 ;
  59
  60     static void* CallBackProc( void *param )
  61     {
  62         wxMacFunctor* f = (wxMacFunctor*) param ;
  63         void *result = (*f)() ;
  64         return result ;
  65     }
  66 } ;
  67
  68 template<typename classtype, typename param1type>
  69
  70 class wxMacObjectFunctor1 : public wxMacFunctor
  71 {
  72     typedef void (classtype::*function)( param1type p1 ) ;
  73     typedef void (classtype::*ref_function)( const param1type& p1 ) ;
  74 public :
  75     wxMacObjectFunctor1( classtype *obj , function f , param1type p1 ) :
  76         wxMacFunctor()
  77     {
  78         m_object = obj ;
  79         m_function = f ;
  80         m_param1 = p1 ;
  81     }
  82
  83     wxMacObjectFunctor1( classtype *obj , ref_function f , param1type p1 ) :
  84         wxMacFunctor()
  85     {
  86         m_object = obj ;
  87         m_refFunction = f ;
  88         m_param1 = p1 ;
  89     }
  90
  91     virtual ~wxMacObjectFunctor1() {}
  92
  93     virtual void* operator()()
  94     {
  95         (m_object->*m_function)( m_param1 ) ;
  96         return NULL ;
  97     }
  98
  99 private :
 100     classtype* m_object ;
 101     param1type m_param1 ;
 102     union
 103     {
 104         function m_function ;
 105         ref_function m_refFunction ;
 106     } ;
 107 } ;
 108
 109 template<typename classtype, typename param1type>
 110 void* wxMacMPRemoteCall( classtype *object , void (classtype::*function)( param1type p1 ) , param1type p1 )
 111 {
 112     wxMacObjectFunctor1<classtype, param1type> params(object, function, p1) ;
 113     void *result =
 114         MPRemoteCall( wxMacFunctor::CallBackProc , &params , kMPOwningProcessRemoteContext ) ;
 115     return result ;
 116 }
 117
 118 template<typename classtype, typename param1type>
 119 void* wxMacMPRemoteCall( classtype *object , void (classtype::*function)( const param1type& p1 ) , param1type p1 )
 120 {
 121     wxMacObjectFunctor1<classtype,param1type> params(object, function, p1) ;
 122     void *result =
 123         MPRemoteCall( wxMacFunctor::CallBackProc , &params , kMPOwningProcessRemoteContext ) ;
 124     return result ;
 125 }
 126
 127 template<typename classtype, typename param1type>
 128 void* wxMacMPRemoteGUICall( classtype *object , void (classtype::*function)( param1type p1 ) , param1type p1 )
 129 {
 130     wxMutexGuiLeave() ;
 131     void *result = wxMacMPRemoteCall( object , function , p1 ) ;
 132     wxMutexGuiEnter() ;
 133     return result ;
 134 }
 135
 136 template<typename classtype, typename param1type>
 137 void* wxMacMPRemoteGUICall( classtype *object , void (classtype::*function)( const param1type& p1 ) , param1type p1 )
 138 {
 139     wxMutexGuiLeave() ;
 140     void *result = wxMacMPRemoteCall( object , function , p1 ) ;
 141     wxMutexGuiEnter() ;
 142     return result ;
 143 }
 144
 145 class WXDLLEXPORT wxMacPortSaver
 146 {
 147     DECLARE_NO_COPY_CLASS(wxMacPortSaver)
 148
 149 public:
 150     wxMacPortSaver( GrafPtr port );
 151     ~wxMacPortSaver();
 152 private :
 153     GrafPtr m_port;
 154 };
 155
 156
 157 /*
 158  Clips to the visible region of a control within the current port
 159  */
 160
 161 class WXDLLEXPORT wxMacWindowClipper : public wxMacPortSaver
 162 {
 163     DECLARE_NO_COPY_CLASS(wxMacWindowClipper)
 164
 165 public:
 166     wxMacWindowClipper( const wxWindow* win );
 167     ~wxMacWindowClipper();
 168 private:
 169     GrafPtr   m_newPort;
 170     RgnHandle m_formerClip;
 171     RgnHandle m_newClip;
 172 };
 173
 174 wxMacPortSaver::wxMacPortSaver( GrafPtr port )
 175 {
 176     ::GetPort( &m_port );
 177     ::SetPort( port );
 178 }
 179
 180 wxMacPortSaver::~wxMacPortSaver()
 181 {
 182     ::SetPort( m_port );
 183 }
 184
 185 wxMacWindowClipper::wxMacWindowClipper( const wxWindow* win ) :
 186 wxMacPortSaver( (GrafPtr) GetWindowPort( (WindowRef) win->MacGetTopLevelWindowRef() ) )
 187 {
 188     m_newPort = (GrafPtr) GetWindowPort( (WindowRef) win->MacGetTopLevelWindowRef() ) ;
 189     m_formerClip = NewRgn() ;
 190     m_newClip = NewRgn() ;
 191     GetClip( m_formerClip ) ;
 192
 193     if ( win )
 194     {
 195         // guard against half constructed objects, this just leads to a empty clip
 196         if ( win->GetPeer() )
 197         {
 198             int x = 0 , y = 0;
 199             win->MacWindowToRootWindow( &x, &y ) ;
 200
 201             // get area including focus rect
 202             HIShapeGetAsQDRgn( ((wxWindow*)win)->MacGetVisibleRegion(true).GetWXHRGN() , m_newClip );
 203             if ( !EmptyRgn( m_newClip ) )
 204                 OffsetRgn( m_newClip , x , y ) ;
 205         }
 206
 207         SetClip( m_newClip ) ;
 208     }
 209 }
 210
 211 wxMacWindowClipper::~wxMacWindowClipper()
 212 {
 213     SetPort( m_newPort ) ;
 214     SetClip( m_formerClip ) ;
 215     DisposeRgn( m_newClip ) ;
 216     DisposeRgn( m_formerClip ) ;
 217 }
 218
 219 // common parts for implementations based on MLTE
 220
 221 class wxMacMLTEControl : public wxMacControl, public wxTextWidgetImpl
 222 {
 223 public :
 224     wxMacMLTEControl( wxTextCtrl *peer ) ;
 225     ~wxMacMLTEControl() {}
 226     virtual wxString GetStringValue() const ;
 227     virtual void SetStringValue( const wxString &str ) ;
 228
 229     static TXNFrameOptions FrameOptionsFromWXStyle( long wxStyle ) ;
 230
 231     void AdjustCreationAttributes( const wxColour& background, bool visible ) ;
 232
 233     virtual void SetFont( const wxFont & font, const wxColour& foreground, long windowStyle ) ;
 234     virtual void SetBackgroundColour(const wxColour& col );
 235     virtual void SetStyle( long start, long end, const wxTextAttr& style ) ;
 236     virtual void Copy() ;
 237     virtual void Cut() ;
 238     virtual void Paste() ;
 239     virtual bool CanPaste() const ;
 240     virtual void SetEditable( bool editable ) ;
 241     virtual wxTextPos GetLastPosition() const ;
 242     virtual void Replace( long from, long to, const wxString &str ) ;
 243     virtual void Remove( long from, long to ) ;
 244     virtual void GetSelection( long* from, long* to ) const ;
 245     virtual void SetSelection( long from, long to ) ;
 246
 247     virtual void WriteText( const wxString& str ) ;
 248
 249     virtual bool HasOwnContextMenu() const
 250     {
 251         TXNCommandEventSupportOptions options ;
 252         TXNGetCommandEventSupport( m_txn , & options ) ;
 253         return options & kTXNSupportEditCommandProcessing ;
 254     }
 255
 256     virtual void CheckSpelling(bool check)
 257     {
 258         TXNSetSpellCheckAsYouType( m_txn, (Boolean) check );
 259     }
 260     virtual void Clear() ;
 261
 262     virtual bool CanUndo() const ;
 263     virtual void Undo() ;
 264     virtual bool CanRedo()  const;
 265     virtual void Redo() ;
 266     virtual int GetNumberOfLines() const ;
 267     virtual long XYToPosition(long x, long y) const ;
 268     virtual bool PositionToXY(long pos, long *x, long *y) const ;
 269     virtual void ShowPosition( long pos ) ;
 270     virtual int GetLineLength(long lineNo) const ;
 271     virtual wxString GetLineText(long lineNo) const ;
 272
 273     void SetTXNData( const wxString& st , TXNOffset start , TXNOffset end ) ;
 274     TXNObject GetTXNObject() { return m_txn ; }
 275
 276 protected :
 277     void TXNSetAttribute( const wxTextAttr& style , long from , long to ) ;
 278
 279     TXNObject m_txn ;
 280 } ;
 281
 282 // implementation available under OSX
 283
 284 class wxMacMLTEHIViewControl : public wxMacMLTEControl
 285 {
 286 public :
 287     wxMacMLTEHIViewControl( wxTextCtrl *wxPeer,
 288                              const wxString& str,
 289                              const wxPoint& pos,
 290                              const wxSize& size, long style ) ;
 291     virtual ~wxMacMLTEHIViewControl() ;
 292
 293     virtual OSStatus SetFocus( ControlFocusPart focusPart ) ;
 294     virtual bool HasFocus() const ;
 295     virtual void SetBackgroundColour(const wxColour& col ) ;
 296
 297 protected :
 298     HIViewRef m_scrollView ;
 299     HIViewRef m_textView ;
 300 };
 301
 302 // 'classic' MLTE implementation
 303
 304 class wxMacMLTEClassicControl : public wxMacMLTEControl
 305 {
 306 public :
 307     wxMacMLTEClassicControl( wxTextCtrl *wxPeer,
 308                              const wxString& str,
 309                              const wxPoint& pos,
 310                              const wxSize& size, long style ) ;
 311     virtual ~wxMacMLTEClassicControl() ;
 312
 313     virtual void VisibilityChanged(bool shown) ;
 314     virtual void SuperChangedPosition() ;
 315
 316     virtual void            MacControlUserPaneDrawProc(wxInt16 part) ;
 317     virtual wxInt16         MacControlUserPaneHitTestProc(wxInt16 x, wxInt16 y) ;
 318     virtual wxInt16         MacControlUserPaneTrackingProc(wxInt16 x, wxInt16 y, void* actionProc) ;
 319     virtual void            MacControlUserPaneIdleProc() ;
 320     virtual wxInt16         MacControlUserPaneKeyDownProc(wxInt16 keyCode, wxInt16 charCode, wxInt16 modifiers) ;
 321     virtual void            MacControlUserPaneActivateProc(bool activating) ;
 322     virtual wxInt16         MacControlUserPaneFocusProc(wxInt16 action) ;
 323     virtual void            MacControlUserPaneBackgroundProc(void* info) ;
 324
 325     virtual bool SetupCursor( const wxPoint& WXUNUSED(pt) )
 326     {
 327         MacControlUserPaneIdleProc();
 328         return true;
 329     }
 330
 331     virtual void            Move(int x, int y, int width, int height);
 332
 333 protected :
 334     OSStatus                 DoCreate();
 335
 336     void                    MacUpdatePosition() ;
 337     void                    MacActivatePaneText(bool setActive) ;
 338     void                    MacFocusPaneText(bool setFocus) ;
 339     void                    MacSetObjectVisibility(bool vis) ;
 340
 341 private :
 342     TXNFrameID              m_txnFrameID ;
 343     GrafPtr                 m_txnPort ;
 344     WindowRef               m_txnWindow ;
 345     // bounds of the control as we last did set the txn frames
 346     Rect                    m_txnControlBounds ;
 347     Rect                    m_txnVisBounds ;
 348
 349     static pascal void TXNScrollActionProc( ControlRef controlRef , ControlPartCode partCode ) ;
 350     static pascal void TXNScrollInfoProc(
 351         SInt32 iValue, SInt32 iMaximumValue,
 352         TXNScrollBarOrientation iScrollBarOrientation, SInt32 iRefCon ) ;
 353
 354     ControlRef              m_sbHorizontal ;
 355     SInt32                  m_lastHorizontalValue ;
 356     ControlRef              m_sbVertical ;
 357     SInt32                  m_lastVerticalValue ;
 358 };
 359
 360 wxWidgetImplType* wxWidgetImpl::CreateTextControl( wxTextCtrl* wxpeer,
 361                                     wxWindowMac* parent,
 362                                     wxWindowID id,
 363                                     const wxString& str,
 364                                     const wxPoint& pos,
 365                                     const wxSize& size,
 366                                     long style,
 367                                     long extraStyle)
 368 {
 369     bool forceMLTE = false ;
 370
 371 #if wxUSE_SYSTEM_OPTIONS
 372     if (wxSystemOptions::HasOption( wxMAC_TEXTCONTROL_USE_MLTE ) && (wxSystemOptions::GetOptionInt( wxMAC_TEXTCONTROL_USE_MLTE ) == 1))
 373     {
 374         forceMLTE = true ;
 375     }
 376 #endif
 377
 378     if ( UMAGetSystemVersion() >= 0x1050 )
 379         forceMLTE = false;
 380
 381     wxMacControl*  peer = NULL;
 382
 383     if ( !forceMLTE )
 384     {
 385         if ( style & wxTE_MULTILINE || ( UMAGetSystemVersion() >= 0x1050 ) )
 386             peer = new wxMacMLTEHIViewControl( wxpeer , str , pos , size , style ) ;
 387     }
 388
 389     if ( !peer )
 390     {
 391         if ( !(style & wxTE_MULTILINE) && !forceMLTE )
 392         {
 393             peer = new wxMacUnicodeTextControl( wxpeer , str , pos , size , style ) ;
 394         }
 395     }
 396
 397     // the horizontal single line scrolling bug that made us keep the classic implementation
 398     // is fixed in 10.5
 399 #if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
 400     if ( !peer )
 401         peer = new wxMacMLTEClassicControl( wxpeer , str , pos , size , style ) ;
 402 #endif
 403     return peer;
 404 }
 405
 406 // ----------------------------------------------------------------------------
 407 // standard unicode control implementation
 408 // ----------------------------------------------------------------------------
 409
 410 // the current unicode textcontrol implementation has a bug : only if the control
 411 // is currently having the focus, the selection can be retrieved by the corresponding
 412 // data tag. So we have a mirroring using a member variable
 413 // TODO : build event table using virtual member functions for wxMacControl
 414
 415 static const EventTypeSpec unicodeTextControlEventList[] =
 416 {
 417     { kEventClassControl , kEventControlSetFocusPart } ,
 418 } ;
 419
 420 static pascal OSStatus wxMacUnicodeTextControlControlEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
 421 {
 422     OSStatus result = eventNotHandledErr ;
 423     wxMacUnicodeTextControl* focus = (wxMacUnicodeTextControl*) data ;
 424     wxMacCarbonEvent cEvent( event ) ;
 425
 426     switch ( GetEventKind( event ) )
 427     {
 428         case kEventControlSetFocusPart :
 429         {
 430             ControlPartCode controlPart = cEvent.GetParameter<ControlPartCode>(kEventParamControlPart , typeControlPartCode );
 431             if ( controlPart == kControlFocusNoPart )
 432             {
 433                 // about to loose focus -> store selection to field
 434                 focus->GetData<ControlEditTextSelectionRec>( 0, kControlEditTextSelectionTag, &focus->m_selection );
 435             }
 436             result = CallNextEventHandler(handler,event) ;
 437             if ( controlPart != kControlFocusNoPart )
 438             {
 439                 // about to gain focus -> set selection from field
 440                 focus->SetData<ControlEditTextSelectionRec>( 0, kControlEditTextSelectionTag, &focus->m_selection );
 441             }
 442             break;
 443         }
 444         default:
 445             break ;
 446     }
 447
 448     return result ;
 449 }
 450
 451 static pascal OSStatus wxMacUnicodeTextControlEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
 452 {
 453     OSStatus result = eventNotHandledErr ;
 454
 455     switch ( GetEventClass( event ) )
 456     {
 457         case kEventClassControl :
 458             result = wxMacUnicodeTextControlControlEventHandler( handler , event , data ) ;
 459             break ;
 460
 461         default :
 462             break ;
 463     }
 464     return result ;
 465 }
 466
 467 DEFINE_ONE_SHOT_HANDLER_GETTER( wxMacUnicodeTextControlEventHandler )
 468
 469 wxMacUnicodeTextControl::wxMacUnicodeTextControl( wxTextCtrl *wxPeer ) : wxMacControl( wxPeer )
 470 {
 471 }
 472
 473 wxMacUnicodeTextControl::wxMacUnicodeTextControl( wxTextCtrl *wxPeer,
 474     const wxString& str,
 475     const wxPoint& pos,
 476     const wxSize& size, long style )
 477     : wxMacControl( wxPeer )
 478 {
 479     m_font = wxPeer->GetFont() ;
 480     m_windowStyle = style ;
 481     m_selection.selStart = m_selection.selEnd = 0;
 482     Rect bounds = wxMacGetBoundsForControl( wxPeer , pos , size ) ;
 483     wxString st = str ;
 484     wxMacConvertNewlines10To13( &st ) ;
 485     wxCFStringRef cf(st , m_font.GetEncoding()) ;
 486
 487     m_valueTag = kControlEditTextCFStringTag ;
 488     Boolean isPassword = ( m_windowStyle & wxTE_PASSWORD ) != 0 ;
 489     if ( isPassword )
 490     {
 491         m_valueTag = kControlEditTextPasswordCFStringTag ;
 492     }
 493     OSStatus err = CreateEditUnicodeTextControl(
 494         MAC_WXHWND(wxPeer->MacGetTopLevelWindowRef()), &bounds , cf ,
 495         isPassword , NULL , &m_controlRef ) ;
 496     verify_noerr( err );
 497
 498     if ( !(m_windowStyle & wxTE_MULTILINE) )
 499         SetData<Boolean>( kControlEditTextPart , kControlEditTextSingleLineTag , true ) ;
 500
 501     InstallEventHandlers();
 502 }
 503
 504 void wxMacUnicodeTextControl::InstallEventHandlers()
 505 {
 506     ::InstallControlEventHandler( m_controlRef , GetwxMacUnicodeTextControlEventHandlerUPP(),
 507                                 GetEventTypeCount(unicodeTextControlEventList), unicodeTextControlEventList, this,
 508                                 NULL);
 509 }
 510
 511 wxMacUnicodeTextControl::~wxMacUnicodeTextControl()
 512 {
 513 }
 514
 515 void wxMacUnicodeTextControl::VisibilityChanged(bool shown)
 516 {
 517     if ( !(m_windowStyle & wxTE_MULTILINE) && shown )
 518     {
 519         // work around a refresh issue insofar as not always the entire content is shown,
 520         // even if this would be possible
 521         ControlEditTextSelectionRec sel ;
 522         CFStringRef value = NULL ;
 523
 524         verify_noerr( GetData<ControlEditTextSelectionRec>( 0, kControlEditTextSelectionTag, &sel ) );
 525         verify_noerr( GetData<CFStringRef>( 0, m_valueTag, &value ) );
 526         verify_noerr( SetData<CFStringRef>( 0, m_valueTag, &value ) );
 527         verify_noerr( SetData<ControlEditTextSelectionRec>( 0, kControlEditTextSelectionTag, &sel ) );
 528
 529         CFRelease( value ) ;
 530     }
 531 }
 532
 533 wxString wxMacUnicodeTextControl::GetStringValue() const
 534 {
 535     wxString result ;
 536     CFStringRef value = GetData<CFStringRef>(0, m_valueTag) ;
 537     if ( value )
 538     {
 539         wxCFStringRef cf(value) ;
 540         result = cf.AsString() ;
 541     }
 542
 543 #if '\n' == 10
 544     wxMacConvertNewlines13To10( &result ) ;
 545 #else
 546     wxMacConvertNewlines10To13( &result ) ;
 547 #endif
 548
 549     return result ;
 550 }
 551
 552 void wxMacUnicodeTextControl::SetStringValue( const wxString &str )
 553 {
 554     wxString st = str ;
 555     wxMacConvertNewlines10To13( &st ) ;
 556     wxCFStringRef cf( st , m_font.GetEncoding() ) ;
 557     verify_noerr( SetData<CFStringRef>( 0, m_valueTag , cf ) ) ;
 558 }
 559
 560 void wxMacUnicodeTextControl::Copy()
 561 {
 562     SendHICommand( kHICommandCopy ) ;
 563 }
 564
 565 void wxMacUnicodeTextControl::Cut()
 566 {
 567     SendHICommand( kHICommandCut ) ;
 568 }
 569
 570 void wxMacUnicodeTextControl::Paste()
 571 {
 572     SendHICommand( kHICommandPaste ) ;
 573 }
 574
 575 bool wxMacUnicodeTextControl::CanPaste() const
 576 {
 577     return true ;
 578 }
 579
 580 void wxMacUnicodeTextControl::SetEditable(bool WXUNUSED(editable))
 581 {
 582 #if 0 // leads to problem because text cannot be selected anymore
 583     SetData<Boolean>( kControlEditTextPart , kControlEditTextLockedTag , (Boolean) !editable ) ;
 584 #endif
 585 }
 586
 587 void wxMacUnicodeTextControl::GetSelection( long* from, long* to ) const
 588 {
 589     ControlEditTextSelectionRec sel ;
 590     if (HasFocus())
 591         verify_noerr( GetData<ControlEditTextSelectionRec>( 0, kControlEditTextSelectionTag, &sel ) ) ;
 592     else
 593         sel = m_selection ;
 594
 595     if ( from )
 596         *from = sel.selStart ;
 597     if ( to )
 598         *to = sel.selEnd ;
 599 }
 600
 601 void wxMacUnicodeTextControl::SetSelection( long from , long to )
 602 {
 603     ControlEditTextSelectionRec sel ;
 604     wxString result ;
 605     int textLength = 0 ;
 606     CFStringRef value = GetData<CFStringRef>(0, m_valueTag) ;
 607     if ( value )
 608     {
 609         wxCFStringRef cf(value) ;
 610         textLength = cf.AsString().length() ;
 611     }
 612
 613     if ((from == -1) && (to == -1))
 614     {
 615         from = 0 ;
 616         to = textLength ;
 617     }
 618     else
 619     {
 620         from = wxMin(textLength,wxMax(from,0)) ;
 621         if ( to == -1 )
 622             to = textLength;
 623         else
 624             to = wxMax(0,wxMin(textLength,to)) ;
 625     }
 626
 627     sel.selStart = from ;
 628     sel.selEnd = to ;
 629     if ( HasFocus() )
 630         SetData<ControlEditTextSelectionRec>( 0, kControlEditTextSelectionTag, &sel ) ;
 631     else
 632         m_selection = sel;
 633 }
 634
 635 void wxMacUnicodeTextControl::WriteText( const wxString& str )
 636 {
 637     // TODO: this MPRemoting will be moved into a remoting peer proxy for any command
 638     if ( !wxIsMainThread() )
 639     {
 640 #if wxOSX_USE_CARBON
 641         // unfortunately CW 8 is not able to correctly deduce the template types,
 642         // so we have to instantiate explicitly
 643         wxMacMPRemoteGUICall<wxTextCtrl,wxString>( (wxTextCtrl*) GetWXPeer() , &wxTextCtrl::WriteText , str ) ;
 644 #endif
 645         return ;
 646     }
 647
 648     wxString st = str ;
 649     wxMacConvertNewlines10To13( &st ) ;
 650
 651     if ( HasFocus() )
 652     {
 653         wxCFStringRef cf(st , m_font.GetEncoding() ) ;
 654         CFStringRef value = cf ;
 655         SetData<CFStringRef>( 0, kControlEditTextInsertCFStringRefTag, &value );
 656     }
 657     else
 658     {
 659         wxString val = GetStringValue() ;
 660         long start , end ;
 661         GetSelection( &start , &end ) ;
 662         val.Remove( start , end - start ) ;
 663         val.insert( start , str ) ;
 664         SetStringValue( val ) ;
 665         SetSelection( start + str.length() , start + str.length() ) ;
 666     }
 667 }
 668
 669 // ----------------------------------------------------------------------------
 670 // MLTE control implementation (common part)
 671 // ----------------------------------------------------------------------------
 672
 673 // if MTLE is read only, no changes at all are allowed, not even from
 674 // procedural API, in order to allow changes via API all the same we must undo
 675 // the readonly status while we are executing, this class helps to do so
 676
 677 class wxMacEditHelper
 678 {
 679 public :
 680     wxMacEditHelper( TXNObject txn )
 681     {
 682         TXNControlTag tag[] = { kTXNIOPrivilegesTag } ;
 683         m_txn = txn ;
 684         TXNGetTXNObjectControls( m_txn , 1 , tag , m_data ) ;
 685         if ( m_data[0].uValue == kTXNReadOnly )
 686         {
 687             TXNControlData data[] = { { kTXNReadWrite } } ;
 688             TXNSetTXNObjectControls( m_txn , false , 1 , tag , data ) ;
 689         }
 690     }
 691
 692     ~wxMacEditHelper()
 693     {
 694         TXNControlTag tag[] = { kTXNIOPrivilegesTag } ;
 695         if ( m_data[0].uValue == kTXNReadOnly )
 696             TXNSetTXNObjectControls( m_txn , false , 1 , tag , m_data ) ;
 697     }
 698
 699 protected :
 700     TXNObject m_txn ;
 701     TXNControlData m_data[1] ;
 702 } ;
 703
 704 wxMacMLTEControl::wxMacMLTEControl( wxTextCtrl *peer )
 705     : wxMacControl( peer )
 706 {
 707     SetNeedsFocusRect( true ) ;
 708 }
 709
 710 wxString wxMacMLTEControl::GetStringValue() const
 711 {
 712     wxString result ;
 713     OSStatus err ;
 714     Size actualSize = 0;
 715
 716     {
 717 #if wxUSE_UNICODE
 718         Handle theText ;
 719         err = TXNGetDataEncoded( m_txn, kTXNStartOffset, kTXNEndOffset, &theText, kTXNUnicodeTextData );
 720
 721         // all done
 722         if ( err != noErr )
 723         {
 724             actualSize = 0 ;
 725         }
 726         else
 727         {
 728             actualSize = GetHandleSize( theText ) / sizeof(UniChar) ;
 729             if ( actualSize > 0 )
 730             {
 731                 wxChar *ptr = NULL ;
 732
 733 #if SIZEOF_WCHAR_T == 2
 734                 ptr = new wxChar[actualSize + 1] ;
 735                 wxStrncpy( ptr , (wxChar*)(*theText) , actualSize ) ;
 736 #else
 737                 SetHandleSize( theText, (actualSize + 1) * sizeof(UniChar) ) ;
 738                 HLock( theText ) ;
 739                 (((UniChar*)*theText)[actualSize]) = 0 ;
 740                 wxMBConvUTF16 converter ;
 741                 size_t noChars = converter.MB2WC( NULL , (const char*)*theText , 0 ) ;
 742                 wxASSERT_MSG( noChars != wxCONV_FAILED, _T("Unable to count the number of characters in this string!") );
 743                 ptr = new wxChar[noChars + 1] ;
 744
 745                 noChars = converter.MB2WC( ptr , (const char*)*theText , noChars + 1 ) ;
 746                 wxASSERT_MSG( noChars != wxCONV_FAILED, _T("Conversion of string failed!") );
 747                 ptr[noChars] = 0 ;
 748                 HUnlock( theText ) ;
 749 #endif
 750
 751                 ptr[actualSize] = 0 ;
 752                 result = wxString( ptr ) ;
 753                 delete [] ptr ;
 754             }
 755
 756             DisposeHandle( theText ) ;
 757         }
 758 #else
 759         Handle theText ;
 760         err = TXNGetDataEncoded( m_txn , kTXNStartOffset, kTXNEndOffset, &theText, kTXNTextData );
 761
 762         // all done
 763         if ( err != noErr )
 764         {
 765             actualSize = 0 ;
 766         }
 767         else
 768         {
 769             actualSize = GetHandleSize( theText ) ;
 770             if ( actualSize > 0 )
 771             {
 772                 HLock( theText ) ;
 773                 result = wxString( *theText , wxConvLocal , actualSize ) ;
 774                 HUnlock( theText ) ;
 775             }
 776
 777             DisposeHandle( theText ) ;
 778         }
 779 #endif
 780     }
 781
 782 #if '\n' == 10
 783     wxMacConvertNewlines13To10( &result ) ;
 784 #else
 785     wxMacConvertNewlines10To13( &result ) ;
 786 #endif
 787
 788     return result ;
 789 }
 790
 791 void wxMacMLTEControl::SetStringValue( const wxString &str )
 792 {
 793     wxString st = str;
 794     wxMacConvertNewlines10To13( &st );
 795
 796     {
 797 #ifndef __LP64__
 798         wxMacWindowClipper c( GetWXPeer() ) ;
 799 #endif
 800
 801         {
 802             wxMacEditHelper help( m_txn );
 803             SetTXNData( st, kTXNStartOffset, kTXNEndOffset );
 804         }
 805
 806         TXNSetSelection( m_txn, 0, 0 );
 807         TXNShowSelection( m_txn, kTXNShowStart );
 808     }
 809 }
 810
 811 TXNFrameOptions wxMacMLTEControl::FrameOptionsFromWXStyle( long wxStyle )
 812 {
 813     TXNFrameOptions frameOptions = kTXNDontDrawCaretWhenInactiveMask;
 814
 815     frameOptions |= kTXNDoFontSubstitutionMask;
 816
 817     if ( ! (wxStyle & wxTE_NOHIDESEL) )
 818         frameOptions |= kTXNDontDrawSelectionWhenInactiveMask ;
 819
 820     if ( wxStyle & (wxHSCROLL | wxTE_DONTWRAP) )
 821         frameOptions |= kTXNWantHScrollBarMask ;
 822
 823     if ( wxStyle & wxTE_MULTILINE )
 824     {
 825         if ( ! (wxStyle & wxTE_DONTWRAP ) )
 826             frameOptions |= kTXNAlwaysWrapAtViewEdgeMask ;
 827
 828         if ( !(wxStyle & wxTE_NO_VSCROLL) )
 829         {
 830             frameOptions |= kTXNWantVScrollBarMask ;
 831
 832             // The following code causes drawing problems on 10.4. Perhaps it can be restored for
 833             // older versions of the OS, but I'm not sure it's appropriate to put a grow icon here
 834             // anyways, as AFAIK users can't actually use it to resize the text ctrl.
 835 //            if ( frameOptions & kTXNWantHScrollBarMask )
 836 //                frameOptions |= kTXNDrawGrowIconMask ;
 837         }
 838     }
 839     else
 840     {
 841         frameOptions |= kTXNSingleLineOnlyMask ;
 842     }
 843
 844     return frameOptions ;
 845 }
 846
 847 void wxMacMLTEControl::AdjustCreationAttributes(const wxColour &background,
 848                                                 bool WXUNUSED(visible))
 849 {
 850     TXNControlTag iControlTags[] =
 851         {
 852             kTXNDoFontSubstitution,
 853             kTXNWordWrapStateTag ,
 854         };
 855     TXNControlData iControlData[] =
 856         {
 857             { true },
 858             { kTXNNoAutoWrap },
 859         };
 860
 861     int toptag = WXSIZEOF( iControlTags ) ;
 862
 863     if ( m_windowStyle & wxTE_MULTILINE )
 864     {
 865         iControlData[1].uValue =
 866             (m_windowStyle & wxTE_DONTWRAP)
 867             ? kTXNNoAutoWrap
 868             : kTXNAutoWrap;
 869     }
 870
 871     OSStatus err = TXNSetTXNObjectControls( m_txn, false, toptag, iControlTags, iControlData ) ;
 872     verify_noerr( err );
 873
 874     // setting the default font:
 875     // under 10.2 this causes a visible caret, therefore we avoid it
 876
 877     Str255 fontName ;
 878     SInt16 fontSize ;
 879     Style fontStyle ;
 880
 881     GetThemeFont( kThemeSystemFont , GetApplicationScript() , fontName , &fontSize , &fontStyle ) ;
 882
 883     TXNTypeAttributes typeAttr[] =
 884     {
 885         { kTXNQDFontNameAttribute , kTXNQDFontNameAttributeSize , { (void*) fontName } } ,
 886         { kTXNQDFontSizeAttribute , kTXNFontSizeAttributeSize , { (void*) (fontSize << 16) } } ,
 887         { kTXNQDFontStyleAttribute , kTXNQDFontStyleAttributeSize , { (void*) normal } } ,
 888     } ;
 889
 890     err = TXNSetTypeAttributes(
 891         m_txn, sizeof(typeAttr) / sizeof(TXNTypeAttributes),
 892         typeAttr, kTXNStartOffset, kTXNEndOffset );
 893     verify_noerr( err );
 894
 895     if ( m_windowStyle & wxTE_PASSWORD )
 896     {
 897         UniChar c = 0x00A5 ;
 898         err = TXNEchoMode( m_txn , c , 0 , true );
 899         verify_noerr( err );
 900     }
 901
 902     TXNBackground tback;
 903     tback.bgType = kTXNBackgroundTypeRGB;
 904     background.GetRGBColor( &tback.bg.color );
 905     TXNSetBackground( m_txn , &tback );
 906
 907
 908     TXNCommandEventSupportOptions options ;
 909     if ( TXNGetCommandEventSupport( m_txn, &options ) == noErr )
 910     {
 911         options |=
 912             kTXNSupportEditCommandProcessing
 913             | kTXNSupportEditCommandUpdating
 914             | kTXNSupportFontCommandProcessing
 915             | kTXNSupportFontCommandUpdating;
 916
 917         // only spell check when not read-only
 918         // use system options for the default
 919         bool checkSpelling = false ;
 920         if ( !(m_windowStyle & wxTE_READONLY) )
 921         {
 922 #if wxUSE_SYSTEM_OPTIONS
 923             if ( wxSystemOptions::HasOption( wxMAC_TEXTCONTROL_USE_SPELL_CHECKER ) && (wxSystemOptions::GetOptionInt( wxMAC_TEXTCONTROL_USE_SPELL_CHECKER ) == 1) )
 924             {
 925                 checkSpelling = true ;
 926             }
 927 #endif
 928         }
 929
 930         if ( checkSpelling )
 931             options |=
 932                 kTXNSupportSpellCheckCommandProcessing
 933                 | kTXNSupportSpellCheckCommandUpdating;
 934
 935         TXNSetCommandEventSupport( m_txn , options ) ;
 936     }
 937 }
 938
 939 void wxMacMLTEControl::SetBackgroundColour(const wxColour& col )
 940 {
 941     TXNBackground tback;
 942     tback.bgType = kTXNBackgroundTypeRGB;
 943     col.GetRGBColor(&tback.bg.color);
 944     TXNSetBackground( m_txn , &tback );
 945 }
 946
 947 static inline int wxConvertToTXN(int x)
 948 {
 949     return wx_static_cast(int, x / 254.0 * 72 + 0.5);
 950 }
 951
 952 void wxMacMLTEControl::TXNSetAttribute( const wxTextAttr& style , long from , long to )
 953 {
 954     TXNTypeAttributes typeAttr[4] ;
 955     RGBColor color ;
 956     size_t typeAttrCount = 0 ;
 957
 958     TXNMargins margins;
 959     TXNControlTag    controlTags[4];
 960     TXNControlData   controlData[4];
 961     size_t controlAttrCount = 0;
 962
 963     TXNTab* tabs = NULL;
 964
 965     bool relayout = false;
 966     wxFont font ;
 967
 968     if ( style.HasFont() )
 969     {
 970         wxASSERT( typeAttrCount < WXSIZEOF(typeAttr) );
 971         font = style.GetFont() ;
 972         typeAttr[typeAttrCount].tag = kTXNATSUIStyle ;
 973         typeAttr[typeAttrCount].size = kTXNATSUIStyleSize ;
 974         typeAttr[typeAttrCount].data.dataPtr = font.MacGetATSUStyle() ;
 975         typeAttrCount++ ;
 976     }
 977
 978     if ( style.HasTextColour() )
 979     {
 980         wxASSERT( typeAttrCount < WXSIZEOF(typeAttr) );
 981         style.GetTextColour().GetRGBColor( &color );
 982         typeAttr[typeAttrCount].tag = kTXNQDFontColorAttribute ;
 983         typeAttr[typeAttrCount].size = kTXNQDFontColorAttributeSize ;
 984         typeAttr[typeAttrCount].data.dataPtr = (void*) &color ;
 985         typeAttrCount++ ;
 986     }
 987
 988     if ( style.HasAlignment() )
 989     {
 990         wxASSERT( controlAttrCount < WXSIZEOF(controlTags) );
 991         SInt32 align;
 992
 993         switch ( style.GetAlignment() )
 994         {
 995             case wxTEXT_ALIGNMENT_LEFT:
 996                 align = kTXNFlushLeft;
 997                 break;
 998             case wxTEXT_ALIGNMENT_CENTRE:
 999                 align = kTXNCenter;
1000                 break;
1001             case wxTEXT_ALIGNMENT_RIGHT:
1002                 align = kTXNFlushRight;
1003                 break;
1004             case wxTEXT_ALIGNMENT_JUSTIFIED:
1005                 align = kTXNFullJust;
1006                 break;
1007             default :
1008             case wxTEXT_ALIGNMENT_DEFAULT:
1009                 align = kTXNFlushDefault;
1010                 break;
1011         }
1012
1013         controlTags[controlAttrCount] = kTXNJustificationTag ;
1014         controlData[controlAttrCount].sValue = align ;
1015         controlAttrCount++ ;
1016     }
1017
1018     if ( style.HasLeftIndent() || style.HasRightIndent() )
1019     {
1020         wxASSERT( controlAttrCount < WXSIZEOF(controlTags) );
1021         controlTags[controlAttrCount] = kTXNMarginsTag;
1022         controlData[controlAttrCount].marginsPtr = &margins;
1023         verify_noerr( TXNGetTXNObjectControls (m_txn, 1 ,
1024                                 &controlTags[controlAttrCount], &controlData[controlAttrCount]) );
1025         if ( style.HasLeftIndent() )
1026         {
1027             margins.leftMargin = wxConvertToTXN(style.GetLeftIndent());
1028         }
1029         if ( style.HasRightIndent() )
1030         {
1031             margins.rightMargin = wxConvertToTXN(style.GetRightIndent());
1032         }
1033         controlAttrCount++ ;
1034     }
1035
1036     if ( style.HasTabs() )
1037     {
1038         const wxArrayInt& tabarray = style.GetTabs();
1039         // unfortunately Mac only applies a tab distance, not individually different tabs
1040         controlTags[controlAttrCount] = kTXNTabSettingsTag;
1041         if ( tabarray.size() > 0 )
1042             controlData[controlAttrCount].tabValue.value = wxConvertToTXN(tabarray[0]);
1043         else
1044             controlData[controlAttrCount].tabValue.value = 72 ;
1045
1046         controlData[controlAttrCount].tabValue.tabType = kTXNLeftTab;
1047         controlAttrCount++ ;
1048     }
1049
1050     // unfortunately the relayout is not automatic
1051     if ( controlAttrCount > 0 )
1052     {
1053         verify_noerr( TXNSetTXNObjectControls (m_txn, false /* don't clear all */, controlAttrCount,
1054                                 controlTags, controlData) );
1055         relayout = true;
1056     }
1057
1058     if ( typeAttrCount > 0 )
1059     {
1060         verify_noerr( TXNSetTypeAttributes( m_txn , typeAttrCount, typeAttr, from , to ) );
1061         relayout = true;
1062     }
1063
1064     if ( tabs != NULL )
1065     {
1066         delete[] tabs;
1067     }
1068
1069     if ( relayout )
1070     {
1071         TXNRecalcTextLayout( m_txn );
1072     }
1073 }
1074
1075 void wxMacMLTEControl::SetFont(const wxFont & font,
1076                                const wxColour& foreground,
1077                                long WXUNUSED(windowStyle))
1078 {
1079     wxMacEditHelper help( m_txn ) ;
1080     TXNSetAttribute( wxTextAttr( foreground, wxNullColour, font ), kTXNStartOffset, kTXNEndOffset ) ;
1081 }
1082
1083 void wxMacMLTEControl::SetStyle( long start, long end, const wxTextAttr& style )
1084 {
1085     wxMacEditHelper help( m_txn ) ;
1086     TXNSetAttribute( style, start, end ) ;
1087 }
1088
1089 void wxMacMLTEControl::Copy()
1090 {
1091     TXNCopy( m_txn );
1092 }
1093
1094 void wxMacMLTEControl::Cut()
1095 {
1096     TXNCut( m_txn );
1097 }
1098
1099 void wxMacMLTEControl::Paste()
1100 {
1101     TXNPaste( m_txn );
1102 }
1103
1104 bool wxMacMLTEControl::CanPaste() const
1105 {
1106     return TXNIsScrapPastable() ;
1107 }
1108
1109 void wxMacMLTEControl::SetEditable(bool editable)
1110 {
1111     TXNControlTag tag[] = { kTXNIOPrivilegesTag } ;
1112     TXNControlData data[] = { { editable ? kTXNReadWrite : kTXNReadOnly } } ;
1113     TXNSetTXNObjectControls( m_txn, false, WXSIZEOF(tag), tag, data ) ;
1114 }
1115
1116 wxTextPos wxMacMLTEControl::GetLastPosition() const
1117 {
1118     wxTextPos actualsize = 0 ;
1119
1120     Handle theText ;
1121     OSErr err = TXNGetDataEncoded( m_txn, kTXNStartOffset, kTXNEndOffset, &theText, kTXNTextData );
1122
1123     // all done
1124     if ( err == noErr )
1125     {
1126         actualsize = GetHandleSize( theText ) ;
1127         DisposeHandle( theText ) ;
1128     }
1129     else
1130     {
1131         actualsize = 0 ;
1132     }
1133
1134     return actualsize ;
1135 }
1136
1137 void wxMacMLTEControl::Replace( long from , long to , const wxString &str )
1138 {
1139     wxString value = str ;
1140     wxMacConvertNewlines10To13( &value ) ;
1141
1142     wxMacEditHelper help( m_txn ) ;
1143 #ifndef __LP64__
1144     wxMacWindowClipper c( GetWXPeer() ) ;
1145 #endif
1146
1147     TXNSetSelection( m_txn, from, to == -1 ? kTXNEndOffset : to ) ;
1148     TXNClear( m_txn ) ;
1149     SetTXNData( value, kTXNUseCurrentSelection, kTXNUseCurrentSelection ) ;
1150 }
1151
1152 void wxMacMLTEControl::Remove( long from , long to )
1153 {
1154 #ifndef __LP64__
1155     wxMacWindowClipper c( GetWXPeer() ) ;
1156 #endif
1157     wxMacEditHelper help( m_txn ) ;
1158     TXNSetSelection( m_txn , from , to ) ;
1159     TXNClear( m_txn ) ;
1160 }
1161
1162 void wxMacMLTEControl::GetSelection( long* from, long* to) const
1163 {
1164     TXNOffset f,t ;
1165     TXNGetSelection( m_txn , &f , &t ) ;
1166     *from = f;
1167     *to = t;
1168 }
1169
1170 void wxMacMLTEControl::SetSelection( long from , long to )
1171 {
1172 #ifndef __LP64__
1173     wxMacWindowClipper c( GetWXPeer() ) ;
1174 #endif
1175
1176     // change the selection
1177     if ((from == -1) && (to == -1))
1178         TXNSelectAll( m_txn );
1179     else
1180         TXNSetSelection( m_txn, from, to == -1 ? kTXNEndOffset : to );
1181
1182     TXNShowSelection( m_txn, kTXNShowStart );
1183 }
1184
1185 void wxMacMLTEControl::WriteText( const wxString& str )
1186 {
1187     // TODO: this MPRemoting will be moved into a remoting peer proxy for any command
1188     if ( !wxIsMainThread() )
1189     {
1190 #if wxOSX_USE_CARBON
1191         // unfortunately CW 8 is not able to correctly deduce the template types,
1192         // so we have to instantiate explicitly
1193         wxMacMPRemoteGUICall<wxTextCtrl,wxString>( (wxTextCtrl*) GetWXPeer() , &wxTextCtrl::WriteText , str ) ;
1194 #endif
1195         return ;
1196     }
1197
1198     wxString st = str ;
1199     wxMacConvertNewlines10To13( &st ) ;
1200
1201     long start , end , dummy ;
1202
1203     GetSelection( &start , &dummy ) ;
1204 #ifndef __LP64__
1205     wxMacWindowClipper c( GetWXPeer() ) ;
1206 #endif
1207
1208     {
1209         wxMacEditHelper helper( m_txn ) ;
1210         SetTXNData( st, kTXNUseCurrentSelection, kTXNUseCurrentSelection ) ;
1211     }
1212
1213     GetSelection( &dummy, &end ) ;
1214
1215     // TODO: SetStyle( start , end , GetDefaultStyle() ) ;
1216 }
1217
1218 void wxMacMLTEControl::Clear()
1219 {
1220 #ifndef __LP64__
1221     wxMacWindowClipper c( GetWXPeer() ) ;
1222 #endif
1223     wxMacEditHelper st( m_txn ) ;
1224     TXNSetSelection( m_txn , kTXNStartOffset , kTXNEndOffset ) ;
1225     TXNClear( m_txn ) ;
1226 }
1227
1228 bool wxMacMLTEControl::CanUndo() const
1229 {
1230     return TXNCanUndo( m_txn , NULL ) ;
1231 }
1232
1233 void wxMacMLTEControl::Undo()
1234 {
1235     TXNUndo( m_txn ) ;
1236 }
1237
1238 bool wxMacMLTEControl::CanRedo() const
1239 {
1240     return TXNCanRedo( m_txn , NULL ) ;
1241 }
1242
1243 void wxMacMLTEControl::Redo()
1244 {
1245     TXNRedo( m_txn ) ;
1246 }
1247
1248 int wxMacMLTEControl::GetNumberOfLines() const
1249 {
1250     ItemCount lines = 0 ;
1251     TXNGetLineCount( m_txn, &lines ) ;
1252
1253     return lines ;
1254 }
1255
1256 long wxMacMLTEControl::XYToPosition(long x, long y) const
1257 {
1258     Point curpt ;
1259     wxTextPos lastpos ;
1260
1261     // TODO: find a better implementation : while we can get the
1262     // line metrics of a certain line, we don't get its starting
1263     // position, so it would probably be rather a binary search
1264     // for the start position
1265     long xpos = 0, ypos = 0 ;
1266     int lastHeight = 0 ;
1267     ItemCount n ;
1268
1269     lastpos = GetLastPosition() ;
1270     for ( n = 0 ; n <= (ItemCount) lastpos ; ++n )
1271     {
1272         if ( y == ypos && x == xpos )
1273             return n ;
1274
1275         TXNOffsetToPoint( m_txn, n, &curpt ) ;
1276
1277         if ( curpt.v > lastHeight )
1278         {
1279             xpos = 0 ;
1280             if ( n > 0 )
1281                 ++ypos ;
1282
1283             lastHeight = curpt.v ;
1284         }
1285         else
1286             ++xpos ;
1287     }
1288
1289     return 0 ;
1290 }
1291
1292 bool wxMacMLTEControl::PositionToXY( long pos, long *x, long *y ) const
1293 {
1294     Point curpt ;
1295     wxTextPos lastpos ;
1296
1297     if ( y )
1298         *y = 0 ;
1299     if ( x )
1300         *x = 0 ;
1301
1302     lastpos = GetLastPosition() ;
1303     if ( pos <= lastpos )
1304     {
1305         // TODO: find a better implementation - while we can get the
1306         // line metrics of a certain line, we don't get its starting
1307         // position, so it would probably be rather a binary search
1308         // for the start position
1309         long xpos = 0, ypos = 0 ;
1310         int lastHeight = 0 ;
1311         ItemCount n ;
1312
1313         for ( n = 0 ; n <= (ItemCount) pos ; ++n )
1314         {
1315             TXNOffsetToPoint( m_txn, n, &curpt ) ;
1316
1317             if ( curpt.v > lastHeight )
1318             {
1319                 xpos = 0 ;
1320                 if ( n > 0 )
1321                     ++ypos ;
1322
1323                 lastHeight = curpt.v ;
1324             }
1325             else
1326                 ++xpos ;
1327         }
1328
1329         if ( y )
1330             *y = ypos ;
1331         if ( x )
1332             *x = xpos ;
1333     }
1334
1335     return false ;
1336 }
1337
1338 void wxMacMLTEControl::ShowPosition( long pos )
1339 {
1340     Point current, desired ;
1341     TXNOffset selstart, selend;
1342
1343     TXNGetSelection( m_txn, &selstart, &selend );
1344     TXNOffsetToPoint( m_txn, selstart, &current );
1345     TXNOffsetToPoint( m_txn, pos, &desired );
1346
1347     // TODO: use HIPoints for 10.3 and above
1348
1349     OSErr theErr = noErr;
1350     long dv = desired.v - current.v;
1351     long dh = desired.h - current.h;
1352     TXNShowSelection( m_txn, kTXNShowStart ) ; // NB: should this be kTXNShowStart or kTXNShowEnd ??
1353     theErr = TXNScroll( m_txn, kTXNScrollUnitsInPixels, kTXNScrollUnitsInPixels, &dv, &dh );
1354
1355     // there will be an error returned for classic MLTE implementation when the control is
1356     // invisible, but HITextView works correctly, so we don't assert that one
1357     // wxASSERT_MSG( theErr == noErr, _T("TXNScroll returned an error!") );
1358 }
1359
1360 void wxMacMLTEControl::SetTXNData( const wxString& st, TXNOffset start, TXNOffset end )
1361 {
1362 #if wxUSE_UNICODE
1363 #if SIZEOF_WCHAR_T == 2
1364     size_t len = st.length() ;
1365     TXNSetData( m_txn, kTXNUnicodeTextData, (void*)st.wc_str(), len * 2, start, end );
1366 #else
1367     wxMBConvUTF16 converter ;
1368     ByteCount byteBufferLen = converter.WC2MB( NULL, st.wc_str(), 0 ) ;
1369     UniChar *unibuf = (UniChar*)malloc( byteBufferLen ) ;
1370     converter.WC2MB( (char*)unibuf, st.wc_str(), byteBufferLen ) ;
1371     TXNSetData( m_txn, kTXNUnicodeTextData, (void*)unibuf, byteBufferLen, start, end ) ;
1372     free( unibuf ) ;
1373 #endif
1374 #else
1375     wxCharBuffer text = st.mb_str( wxConvLocal ) ;
1376     TXNSetData( m_txn, kTXNTextData, (void*)text.data(), strlen( text ), start, end ) ;
1377 #endif
1378 }
1379
1380 wxString wxMacMLTEControl::GetLineText(long lineNo) const
1381 {
1382     wxString line ;
1383
1384     if ( lineNo < GetNumberOfLines() )
1385     {
1386         Point firstPoint;
1387         Fixed lineWidth, lineHeight, currentHeight;
1388         long ypos ;
1389
1390         // get the first possible position in the control
1391         TXNOffsetToPoint(m_txn, 0, &firstPoint);
1392
1393         // Iterate through the lines until we reach the one we want,
1394         // adding to our current y pixel point position
1395         ypos = 0 ;
1396         currentHeight = 0;
1397         while (ypos < lineNo)
1398         {
1399             TXNGetLineMetrics(m_txn, ypos++, &lineWidth, &lineHeight);
1400             currentHeight += lineHeight;
1401         }
1402
1403         Point thePoint = { firstPoint.v + (currentHeight >> 16), firstPoint.h + (0) };
1404         TXNOffset theOffset;
1405         TXNPointToOffset(m_txn, thePoint, &theOffset);
1406
1407         wxString content = GetStringValue() ;
1408         Point currentPoint = thePoint;
1409         while (thePoint.v == currentPoint.v && theOffset < content.length())
1410         {
1411             line += content[theOffset];
1412             TXNOffsetToPoint(m_txn, ++theOffset, &currentPoint);
1413         }
1414     }
1415
1416     return line ;
1417 }
1418
1419 int wxMacMLTEControl::GetLineLength(long lineNo) const
1420 {
1421     int theLength = 0;
1422
1423     if ( lineNo < GetNumberOfLines() )
1424     {
1425         Point firstPoint;
1426         Fixed lineWidth, lineHeight, currentHeight;
1427         long ypos;
1428
1429         // get the first possible position in the control
1430         TXNOffsetToPoint(m_txn, 0, &firstPoint);
1431
1432         // Iterate through the lines until we reach the one we want,
1433         // adding to our current y pixel point position
1434         ypos = 0;
1435         currentHeight = 0;
1436         while (ypos < lineNo)
1437         {
1438             TXNGetLineMetrics(m_txn, ypos++, &lineWidth, &lineHeight);
1439             currentHeight += lineHeight;
1440         }
1441
1442         Point thePoint = { firstPoint.v + (currentHeight >> 16), firstPoint.h + (0) };
1443         TXNOffset theOffset;
1444         TXNPointToOffset(m_txn, thePoint, &theOffset);
1445
1446         wxString content = GetStringValue() ;
1447         Point currentPoint = thePoint;
1448         while (thePoint.v == currentPoint.v && theOffset < content.length())
1449         {
1450             ++theLength;
1451             TXNOffsetToPoint(m_txn, ++theOffset, &currentPoint);
1452         }
1453     }
1454
1455     return theLength ;
1456 }
1457
1458 #if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
1459
1460 // ----------------------------------------------------------------------------
1461 // MLTE control implementation (classic part)
1462 // ----------------------------------------------------------------------------
1463
1464 // OS X Notes : We still don't have a full replacement for MLTE, so this implementation
1465 // has to live on. We have different problems coming from outdated implementations on the
1466 // various OS X versions. Most deal with the scrollbars: they are not correctly embedded
1467 // while this can be solved on 10.3 by reassigning them the correct place, on 10.2 there is
1468 // no way out, therefore we are using our own implementation and our own scrollbars ....
1469
1470 TXNScrollInfoUPP gTXNScrollInfoProc = NULL ;
1471 ControlActionUPP gTXNScrollActionProc = NULL ;
1472
1473 pascal void wxMacMLTEClassicControl::TXNScrollInfoProc(
1474     SInt32 iValue, SInt32 iMaximumValue,
1475     TXNScrollBarOrientation iScrollBarOrientation, SInt32 iRefCon )
1476 {
1477     wxMacMLTEClassicControl* mlte = (wxMacMLTEClassicControl*) iRefCon ;
1478     SInt32 value =  wxMax( iValue , 0 ) ;
1479     SInt32 maximum = wxMax( iMaximumValue , 0 ) ;
1480
1481     if ( iScrollBarOrientation == kTXNHorizontal )
1482     {
1483         if ( mlte->m_sbHorizontal )
1484         {
1485             SetControl32BitValue( mlte->m_sbHorizontal , value ) ;
1486             SetControl32BitMaximum( mlte->m_sbHorizontal , maximum ) ;
1487             mlte->m_lastHorizontalValue = value ;
1488         }
1489     }
1490     else if ( iScrollBarOrientation == kTXNVertical )
1491     {
1492         if ( mlte->m_sbVertical )
1493         {
1494             SetControl32BitValue( mlte->m_sbVertical , value ) ;
1495             SetControl32BitMaximum( mlte->m_sbVertical , maximum ) ;
1496             mlte->m_lastVerticalValue = value ;
1497         }
1498     }
1499 }
1500
1501 pascal void wxMacMLTEClassicControl::TXNScrollActionProc( ControlRef controlRef , ControlPartCode partCode )
1502 {
1503     wxMacMLTEClassicControl* mlte = (wxMacMLTEClassicControl*) GetControlReference( controlRef ) ;
1504     if ( mlte == NULL )
1505         return ;
1506
1507     if ( controlRef != mlte->m_sbVertical && controlRef != mlte->m_sbHorizontal )
1508         return ;
1509
1510     OSStatus err ;
1511     bool isHorizontal = ( controlRef == mlte->m_sbHorizontal ) ;
1512
1513     SInt32 minimum = 0 ;
1514     SInt32 maximum = GetControl32BitMaximum( controlRef ) ;
1515     SInt32 value = GetControl32BitValue( controlRef ) ;
1516     SInt32 delta = 0;
1517
1518     switch ( partCode )
1519     {
1520         case kControlDownButtonPart :
1521             delta = 10 ;
1522             break ;
1523
1524         case kControlUpButtonPart :
1525             delta = -10 ;
1526             break ;
1527
1528         case kControlPageDownPart :
1529             delta = GetControlViewSize( controlRef ) ;
1530             break ;
1531
1532         case kControlPageUpPart :
1533             delta = -GetControlViewSize( controlRef ) ;
1534             break ;
1535
1536         case kControlIndicatorPart :
1537             delta = value - (isHorizontal ? mlte->m_lastHorizontalValue : mlte->m_lastVerticalValue) ;
1538             break ;
1539
1540         default :
1541             break ;
1542     }
1543
1544     if ( delta != 0 )
1545     {
1546         SInt32 newValue = value ;
1547
1548         if ( partCode != kControlIndicatorPart )
1549         {
1550             if ( value + delta < minimum )
1551                 delta = minimum - value ;
1552             if ( value + delta > maximum )
1553                 delta = maximum - value ;
1554
1555             SetControl32BitValue( controlRef , value + delta ) ;
1556             newValue = value + delta ;
1557         }
1558
1559         SInt32 verticalDelta = isHorizontal ? 0 : delta ;
1560         SInt32 horizontalDelta = isHorizontal ? delta : 0 ;
1561
1562         err = TXNScroll(
1563             mlte->m_txn, kTXNScrollUnitsInPixels, kTXNScrollUnitsInPixels,
1564             &verticalDelta, &horizontalDelta );
1565         verify_noerr( err );
1566
1567         if ( isHorizontal )
1568             mlte->m_lastHorizontalValue = newValue ;
1569         else
1570             mlte->m_lastVerticalValue = newValue ;
1571     }
1572 }
1573
1574 // make correct activations
1575 void wxMacMLTEClassicControl::MacActivatePaneText(bool setActive)
1576 {
1577     wxTextCtrl* textctrl = (wxTextCtrl*) GetControlReference(m_controlRef);
1578
1579     wxMacWindowClipper clipper( textctrl ) ;
1580     TXNActivate( m_txn, m_txnFrameID, setActive );
1581
1582     ControlRef controlFocus = 0 ;
1583     GetKeyboardFocus( m_txnWindow , &controlFocus ) ;
1584     if ( controlFocus == m_controlRef )
1585         TXNFocus( m_txn, setActive );
1586 }
1587
1588 void wxMacMLTEClassicControl::MacFocusPaneText(bool setFocus)
1589 {
1590     TXNFocus( m_txn, setFocus );
1591 }
1592
1593 // guards against inappropriate redraw (hidden objects drawing onto window)
1594
1595 void wxMacMLTEClassicControl::MacSetObjectVisibility(bool vis)
1596 {
1597     ControlRef controlFocus = 0 ;
1598     GetKeyboardFocus( m_txnWindow , &controlFocus ) ;
1599
1600     if ( !vis && (controlFocus == m_controlRef ) )
1601         SetKeyboardFocus( m_txnWindow , m_controlRef , kControlFocusNoPart ) ;
1602
1603     TXNControlTag iControlTags[1] = { kTXNVisibilityTag };
1604     TXNControlData iControlData[1] = { { (UInt32)false } };
1605
1606     verify_noerr( TXNGetTXNObjectControls( m_txn , 1, iControlTags, iControlData ) ) ;
1607
1608     if ( iControlData[0].uValue != vis )
1609     {
1610         iControlData[0].uValue = vis ;
1611         verify_noerr( TXNSetTXNObjectControls( m_txn, false , 1, iControlTags, iControlData ) ) ;
1612     }
1613
1614     // currently, we always clip as partial visibility (overlapped) visibility is also a problem,
1615     // if we run into further problems we might set the FrameBounds to an empty rect here
1616 }
1617
1618 // make sure that the TXNObject is at the right position
1619
1620 void wxMacMLTEClassicControl::MacUpdatePosition()
1621 {
1622     wxTextCtrl* textctrl = (wxTextCtrl*)GetControlReference( m_controlRef );
1623     if ( textctrl == NULL )
1624         return ;
1625
1626     Rect bounds ;
1627     GetRectInWindowCoords( &bounds );
1628
1629     wxRect visRect = textctrl->MacGetClippedClientRect() ;
1630     Rect visBounds = { visRect.y , visRect.x , visRect.y + visRect.height , visRect.x + visRect.width } ;
1631     int x , y ;
1632     x = y = 0 ;
1633     textctrl->MacWindowToRootWindow( &x , &y ) ;
1634     OffsetRect( &visBounds , x , y ) ;
1635
1636     if ( !EqualRect( &bounds, &m_txnControlBounds ) || !EqualRect( &visBounds, &m_txnVisBounds ) )
1637     {
1638         m_txnControlBounds = bounds ;
1639         m_txnVisBounds = visBounds ;
1640         wxMacWindowClipper cl( textctrl ) ;
1641
1642         if ( m_sbHorizontal || m_sbVertical )
1643         {
1644             int w = bounds.right - bounds.left ;
1645             int h = bounds.bottom - bounds.top ;
1646
1647             if ( m_sbHorizontal )
1648             {
1649                 Rect sbBounds ;
1650
1651                 sbBounds.left = -1 ;
1652                 sbBounds.top = h - 14 ;
1653                 sbBounds.right = w + 1 ;
1654                 sbBounds.bottom = h + 1 ;
1655
1656                 SetControlBounds( m_sbHorizontal , &sbBounds ) ;
1657                 SetControlViewSize( m_sbHorizontal , w ) ;
1658             }
1659
1660             if ( m_sbVertical )
1661             {
1662                 Rect sbBounds ;
1663
1664                 sbBounds.left = w - 14 ;
1665                 sbBounds.top = -1 ;
1666                 sbBounds.right = w + 1 ;
1667                 sbBounds.bottom = m_sbHorizontal ? h - 14 : h + 1 ;
1668
1669                 SetControlBounds( m_sbVertical , &sbBounds ) ;
1670                 SetControlViewSize( m_sbVertical , h ) ;
1671             }
1672         }
1673
1674         Rect oldviewRect ;
1675         TXNLongRect olddestRect ;
1676         TXNGetRectBounds( m_txn , &oldviewRect , &olddestRect , NULL ) ;
1677
1678         Rect viewRect = { m_txnControlBounds.top, m_txnControlBounds.left,
1679             m_txnControlBounds.bottom - ( m_sbHorizontal ? 14 : 0 ) ,
1680             m_txnControlBounds.right - ( m_sbVertical ? 14 : 0 ) } ;
1681         TXNLongRect destRect = { m_txnControlBounds.top, m_txnControlBounds.left,
1682             m_txnControlBounds.bottom - ( m_sbHorizontal ? 14 : 0 ) ,
1683             m_txnControlBounds.right - ( m_sbVertical ? 14 : 0 ) } ;
1684
1685         if ( olddestRect.right >= 10000 )
1686             destRect.right = destRect.left + 32000 ;
1687
1688         if ( olddestRect.bottom >= 0x20000000 )
1689             destRect.bottom = destRect.top + 0x40000000 ;
1690
1691         SectRect( &viewRect , &visBounds , &viewRect ) ;
1692         TXNSetRectBounds( m_txn , &viewRect , &destRect , true ) ;
1693
1694 #if 0
1695         TXNSetFrameBounds(
1696             m_txn,
1697             m_txnControlBounds.top,
1698             m_txnControlBounds.left,
1699             m_txnControlBounds.bottom - (m_sbHorizontal ? 14 : 0),
1700             m_txnControlBounds.right - (m_sbVertical ? 14 : 0),
1701             m_txnFrameID );
1702 #endif
1703
1704         // the SetFrameBounds method under Classic sometimes does not correctly scroll a selection into sight after a
1705         // movement, therefore we have to force it
1706
1707         // this problem has been reported in OSX as well, so we use this here once again
1708
1709         TXNLongRect textRect ;
1710         TXNGetRectBounds( m_txn , NULL , NULL , &textRect ) ;
1711         if ( textRect.left < m_txnControlBounds.left )
1712             TXNShowSelection( m_txn , kTXNShowStart ) ;
1713     }
1714 }
1715
1716 void wxMacMLTEClassicControl::Move(int x, int y, int width, int height)
1717 {
1718     wxMacControl::Move(x,y,width,height) ;
1719     MacUpdatePosition() ;
1720 }
1721
1722 void wxMacMLTEClassicControl::MacControlUserPaneDrawProc(wxInt16 WXUNUSED(thePart))
1723 {
1724     wxTextCtrl* textctrl = (wxTextCtrl*)GetControlReference( m_controlRef );
1725     if ( textctrl == NULL )
1726         return ;
1727
1728     if ( textctrl->IsShownOnScreen() )
1729     {
1730         wxMacWindowClipper clipper( textctrl ) ;
1731         TXNDraw( m_txn , NULL ) ;
1732     }
1733 }
1734
1735 wxInt16 wxMacMLTEClassicControl::MacControlUserPaneHitTestProc(wxInt16 x, wxInt16 y)
1736 {
1737     Point where = { y , x } ;
1738     ControlPartCode result = kControlNoPart;
1739
1740     wxTextCtrl* textctrl = (wxTextCtrl*) GetControlReference( m_controlRef );
1741     if ( (textctrl != NULL) && textctrl->IsShownOnScreen() )
1742     {
1743         if (PtInRect( where, &m_txnControlBounds ))
1744         {
1745             result = kControlEditTextPart ;
1746         }
1747         else
1748         {
1749             // sometimes we get the coords also in control local coordinates, therefore test again
1750             int x = 0 , y = 0 ;
1751             textctrl->MacClientToRootWindow( &x , &y ) ;
1752             where.h += x ;
1753             where.v += y ;
1754
1755             if (PtInRect( where, &m_txnControlBounds ))
1756                 result = kControlEditTextPart ;
1757         }
1758     }
1759
1760     return result;
1761 }
1762
1763 wxInt16 wxMacMLTEClassicControl::MacControlUserPaneTrackingProc( wxInt16 x, wxInt16 y, void* WXUNUSED(actionProc) )
1764 {
1765     ControlPartCode result = kControlNoPart;
1766
1767     wxTextCtrl* textctrl = (wxTextCtrl*) GetControlReference( m_controlRef );
1768     if ( (textctrl != NULL) && textctrl->IsShownOnScreen() )
1769     {
1770         Point startPt = { y , x } ;
1771
1772         // for compositing, we must convert these into toplevel window coordinates, because hittesting expects them
1773         int x = 0 , y = 0 ;
1774         textctrl->MacClientToRootWindow( &x , &y ) ;
1775         startPt.h += x ;
1776         startPt.v += y ;
1777
1778         switch (MacControlUserPaneHitTestProc( startPt.h , startPt.v ))
1779         {
1780             case kControlEditTextPart :
1781             {
1782                 wxMacWindowClipper clipper( textctrl ) ;
1783                 EventRecord rec ;
1784
1785                 ConvertEventRefToEventRecord( (EventRef) wxTheApp->MacGetCurrentEvent() , &rec ) ;
1786                 TXNClick( m_txn, &rec );
1787             }
1788                 break;
1789
1790             default :
1791                 break;
1792         }
1793     }
1794
1795     return result;
1796 }
1797
1798 void wxMacMLTEClassicControl::MacControlUserPaneIdleProc()
1799 {
1800     wxTextCtrl* textctrl = (wxTextCtrl*)GetControlReference( m_controlRef );
1801     if ( textctrl == NULL )
1802         return ;
1803
1804     if (textctrl->IsShownOnScreen())
1805     {
1806         if (IsControlActive(m_controlRef))
1807         {
1808             Point mousep;
1809
1810             wxMacWindowClipper clipper( textctrl ) ;
1811             GetMouse(&mousep);
1812
1813             TXNIdle(m_txn);
1814
1815             if (PtInRect(mousep, &m_txnControlBounds))
1816             {
1817                 RgnHandle theRgn = NewRgn();
1818                 RectRgn(theRgn, &m_txnControlBounds);
1819                 TXNAdjustCursor(m_txn, theRgn);
1820                 DisposeRgn(theRgn);
1821             }
1822         }
1823     }
1824 }
1825
1826 wxInt16 wxMacMLTEClassicControl::MacControlUserPaneKeyDownProc (wxInt16 keyCode, wxInt16 charCode, wxInt16 modifiers)
1827 {
1828     wxTextCtrl* textctrl = (wxTextCtrl*)GetControlReference( m_controlRef );
1829     if ( textctrl == NULL )
1830         return kControlNoPart;
1831
1832     wxMacWindowClipper clipper( textctrl ) ;
1833
1834     EventRecord ev ;
1835     memset( &ev , 0 , sizeof( ev ) ) ;
1836     ev.what = keyDown ;
1837     ev.modifiers = modifiers ;
1838     ev.message = ((keyCode << 8) & keyCodeMask) | (charCode & charCodeMask);
1839     TXNKeyDown( m_txn , &ev );
1840
1841     return kControlEntireControl;
1842 }
1843
1844 void wxMacMLTEClassicControl::MacControlUserPaneActivateProc(bool activating)
1845 {
1846     MacActivatePaneText( activating );
1847 }
1848
1849 wxInt16 wxMacMLTEClassicControl::MacControlUserPaneFocusProc(wxInt16 action)
1850 {
1851     ControlPartCode focusResult = kControlFocusNoPart;
1852
1853     wxTextCtrl* textctrl = (wxTextCtrl*)GetControlReference( m_controlRef );
1854     if ( textctrl == NULL )
1855         return focusResult;
1856
1857     wxMacWindowClipper clipper( textctrl ) ;
1858
1859     ControlRef controlFocus = NULL ;
1860     GetKeyboardFocus( m_txnWindow , &controlFocus ) ;
1861     bool wasFocused = ( controlFocus == m_controlRef ) ;
1862
1863     switch (action)
1864     {
1865         case kControlFocusPrevPart:
1866         case kControlFocusNextPart:
1867             MacFocusPaneText( !wasFocused );
1868             focusResult = (!wasFocused ? (ControlPartCode) kControlEditTextPart : (ControlPartCode) kControlFocusNoPart);
1869             break;
1870
1871         case kControlFocusNoPart:
1872         default:
1873             MacFocusPaneText( false );
1874             focusResult = kControlFocusNoPart;
1875             break;
1876     }
1877
1878     return focusResult;
1879 }
1880
1881 void wxMacMLTEClassicControl::MacControlUserPaneBackgroundProc( void *WXUNUSED(info) )
1882 {
1883 }
1884
1885 wxMacMLTEClassicControl::wxMacMLTEClassicControl( wxTextCtrl *wxPeer,
1886     const wxString& str,
1887     const wxPoint& pos,
1888     const wxSize& size, long style )
1889     : wxMacMLTEControl( wxPeer )
1890 {
1891     m_font = wxPeer->GetFont() ;
1892     m_windowStyle = style ;
1893     Rect bounds = wxMacGetBoundsForControl( wxPeer , pos , size ) ;
1894
1895     short featureSet =
1896         kControlSupportsEmbedding | kControlSupportsFocus | kControlWantsIdle
1897         | kControlWantsActivate  | kControlHandlesTracking
1898 //    | kControlHasSpecialBackground
1899         | kControlGetsFocusOnClick | kControlSupportsLiveFeedback;
1900
1901    OSStatus err = ::CreateUserPaneControl(
1902         MAC_WXHWND(wxPeer->GetParent()->MacGetTopLevelWindowRef()),
1903         &bounds, featureSet, &m_controlRef );
1904     verify_noerr( err );
1905
1906     DoCreate();
1907
1908     AdjustCreationAttributes( *wxWHITE , true ) ;
1909
1910     MacSetObjectVisibility( wxPeer->IsShownOnScreen() ) ;
1911
1912     {
1913         wxString st = str ;
1914         wxMacConvertNewlines10To13( &st ) ;
1915         wxMacWindowClipper clipper( GetWXPeer() ) ;
1916         SetTXNData( st , kTXNStartOffset, kTXNEndOffset ) ;
1917         TXNSetSelection( m_txn, 0, 0 ) ;
1918     }
1919 }
1920
1921 wxMacMLTEClassicControl::~wxMacMLTEClassicControl()
1922 {
1923     TXNDeleteObject( m_txn );
1924     m_txn = NULL ;
1925 }
1926
1927 void wxMacMLTEClassicControl::VisibilityChanged(bool shown)
1928 {
1929     MacSetObjectVisibility( shown ) ;
1930     wxMacControl::VisibilityChanged( shown ) ;
1931 }
1932
1933 void wxMacMLTEClassicControl::SuperChangedPosition()
1934 {
1935     MacUpdatePosition() ;
1936     wxMacControl::SuperChangedPosition() ;
1937 }
1938
1939 ControlUserPaneDrawUPP gTPDrawProc = NULL;
1940 ControlUserPaneHitTestUPP gTPHitProc = NULL;
1941 ControlUserPaneTrackingUPP gTPTrackProc = NULL;
1942 ControlUserPaneIdleUPP gTPIdleProc = NULL;
1943 ControlUserPaneKeyDownUPP gTPKeyProc = NULL;
1944 ControlUserPaneActivateUPP gTPActivateProc = NULL;
1945 ControlUserPaneFocusUPP gTPFocusProc = NULL;
1946
1947 static pascal void wxMacControlUserPaneDrawProc(ControlRef control, SInt16 part)
1948 {
1949     wxTextCtrl *textCtrl =  wxDynamicCast( wxFindWindowFromWXWidget( (WXWidget) control) , wxTextCtrl ) ;
1950     wxMacMLTEClassicControl * win = textCtrl ? (wxMacMLTEClassicControl*)(textCtrl->GetPeer()) : NULL ;
1951     if ( win )
1952         win->MacControlUserPaneDrawProc( part ) ;
1953 }
1954
1955 static pascal ControlPartCode wxMacControlUserPaneHitTestProc(ControlRef control, Point where)
1956 {
1957     wxTextCtrl *textCtrl =  wxDynamicCast( wxFindWindowFromWXWidget( (WXWidget) control) , wxTextCtrl ) ;
1958     wxMacMLTEClassicControl * win = textCtrl ? (wxMacMLTEClassicControl*)(textCtrl->GetPeer()) : NULL ;
1959     if ( win )
1960         return win->MacControlUserPaneHitTestProc( where.h , where.v ) ;
1961     else
1962         return kControlNoPart ;
1963 }
1964
1965 static pascal ControlPartCode wxMacControlUserPaneTrackingProc(ControlRef control, Point startPt, ControlActionUPP actionProc)
1966 {
1967     wxTextCtrl *textCtrl =  wxDynamicCast( wxFindWindowFromWXWidget( (WXWidget) control) , wxTextCtrl ) ;
1968     wxMacMLTEClassicControl * win = textCtrl ? (wxMacMLTEClassicControl*)(textCtrl->GetPeer()) : NULL ;
1969     if ( win )
1970         return win->MacControlUserPaneTrackingProc( startPt.h , startPt.v , (void*) actionProc ) ;
1971     else
1972         return kControlNoPart ;
1973 }
1974
1975 static pascal void wxMacControlUserPaneIdleProc(ControlRef control)
1976 {
1977     wxTextCtrl *textCtrl =  wxDynamicCast( wxFindWindowFromWXWidget((WXWidget) control) , wxTextCtrl ) ;
1978     wxMacMLTEClassicControl * win = textCtrl ? (wxMacMLTEClassicControl*)(textCtrl->GetPeer()) : NULL ;
1979     if ( win )
1980         win->MacControlUserPaneIdleProc() ;
1981 }
1982
1983 static pascal ControlPartCode wxMacControlUserPaneKeyDownProc(ControlRef control, SInt16 keyCode, SInt16 charCode, SInt16 modifiers)
1984 {
1985     wxTextCtrl *textCtrl =  wxDynamicCast( wxFindWindowFromWXWidget((WXWidget) control) , wxTextCtrl ) ;
1986     wxMacMLTEClassicControl * win = textCtrl ? (wxMacMLTEClassicControl*)(textCtrl->GetPeer()) : NULL ;
1987     if ( win )
1988         return win->MacControlUserPaneKeyDownProc( keyCode, charCode, modifiers ) ;
1989     else
1990         return kControlNoPart ;
1991 }
1992
1993 static pascal void wxMacControlUserPaneActivateProc(ControlRef control, Boolean activating)
1994 {
1995     wxTextCtrl *textCtrl =  wxDynamicCast( wxFindWindowFromWXWidget( (WXWidget)control) , wxTextCtrl ) ;
1996     wxMacMLTEClassicControl * win = textCtrl ? (wxMacMLTEClassicControl*)(textCtrl->GetPeer()) : NULL ;
1997     if ( win )
1998         win->MacControlUserPaneActivateProc( activating ) ;
1999 }
2000
2001 static pascal ControlPartCode wxMacControlUserPaneFocusProc(ControlRef control, ControlFocusPart action)
2002 {
2003     wxTextCtrl *textCtrl =  wxDynamicCast( wxFindWindowFromWXWidget((WXWidget) control) , wxTextCtrl ) ;
2004     wxMacMLTEClassicControl * win = textCtrl ? (wxMacMLTEClassicControl*)(textCtrl->GetPeer()) : NULL ;
2005     if ( win )
2006         return win->MacControlUserPaneFocusProc( action ) ;
2007     else
2008         return kControlNoPart ;
2009 }
2010
2011 #if 0
2012 static pascal void wxMacControlUserPaneBackgroundProc(ControlRef control, ControlBackgroundPtr info)
2013 {
2014     wxTextCtrl *textCtrl =  wxDynamicCast( wxFindWindowFromWXWidget(control) , wxTextCtrl ) ;
2015     wxMacMLTEClassicControl * win = textCtrl ? (wxMacMLTEClassicControl*)(textCtrl->GetPeer()) : NULL ;
2016     if ( win )
2017         win->MacControlUserPaneBackgroundProc(info) ;
2018 }
2019 #endif
2020
2021 // TXNRegisterScrollInfoProc
2022
2023 OSStatus wxMacMLTEClassicControl::DoCreate()
2024 {
2025     Rect bounds;
2026     OSStatus err = noErr ;
2027
2028     // set up our globals
2029     if (gTPDrawProc == NULL) gTPDrawProc = NewControlUserPaneDrawUPP(wxMacControlUserPaneDrawProc);
2030     if (gTPHitProc == NULL) gTPHitProc = NewControlUserPaneHitTestUPP(wxMacControlUserPaneHitTestProc);
2031     if (gTPTrackProc == NULL) gTPTrackProc = NewControlUserPaneTrackingUPP(wxMacControlUserPaneTrackingProc);
2032     if (gTPIdleProc == NULL) gTPIdleProc = NewControlUserPaneIdleUPP(wxMacControlUserPaneIdleProc);
2033     if (gTPKeyProc == NULL) gTPKeyProc = NewControlUserPaneKeyDownUPP(wxMacControlUserPaneKeyDownProc);
2034     if (gTPActivateProc == NULL) gTPActivateProc = NewControlUserPaneActivateUPP(wxMacControlUserPaneActivateProc);
2035     if (gTPFocusProc == NULL) gTPFocusProc = NewControlUserPaneFocusUPP(wxMacControlUserPaneFocusProc);
2036
2037     if (gTXNScrollInfoProc == NULL ) gTXNScrollInfoProc = NewTXNScrollInfoUPP(TXNScrollInfoProc) ;
2038     if (gTXNScrollActionProc == NULL ) gTXNScrollActionProc = NewControlActionUPP(TXNScrollActionProc) ;
2039
2040     // set the initial settings for our private data
2041
2042     m_txnWindow = GetControlOwner(m_controlRef);
2043     m_txnPort = (GrafPtr) GetWindowPort(m_txnWindow);
2044
2045     // set up the user pane procedures
2046     SetControlData(m_controlRef, kControlEntireControl, kControlUserPaneDrawProcTag, sizeof(gTPDrawProc), &gTPDrawProc);
2047     SetControlData(m_controlRef, kControlEntireControl, kControlUserPaneHitTestProcTag, sizeof(gTPHitProc), &gTPHitProc);
2048     SetControlData(m_controlRef, kControlEntireControl, kControlUserPaneTrackingProcTag, sizeof(gTPTrackProc), &gTPTrackProc);
2049     SetControlData(m_controlRef, kControlEntireControl, kControlUserPaneIdleProcTag, sizeof(gTPIdleProc), &gTPIdleProc);
2050     SetControlData(m_controlRef, kControlEntireControl, kControlUserPaneKeyDownProcTag, sizeof(gTPKeyProc), &gTPKeyProc);
2051     SetControlData(m_controlRef, kControlEntireControl, kControlUserPaneActivateProcTag, sizeof(gTPActivateProc), &gTPActivateProc);
2052     SetControlData(m_controlRef, kControlEntireControl, kControlUserPaneFocusProcTag, sizeof(gTPFocusProc), &gTPFocusProc);
2053
2054     // calculate the rectangles used by the control
2055     GetRectInWindowCoords( &bounds );
2056
2057     m_txnControlBounds = bounds ;
2058     m_txnVisBounds = bounds ;
2059
2060     CGrafPtr origPort ;
2061     GDHandle origDev ;
2062
2063     GetGWorld( &origPort, &origDev ) ;
2064     SetPort( m_txnPort );
2065
2066     // create the new edit field
2067     TXNFrameOptions frameOptions = FrameOptionsFromWXStyle( m_windowStyle );
2068
2069     // the scrollbars are not correctly embedded but are inserted at the root:
2070     // this gives us problems as we have erratic redraws even over the structure area
2071
2072     m_sbHorizontal = 0 ;
2073     m_sbVertical = 0 ;
2074     m_lastHorizontalValue = 0 ;
2075     m_lastVerticalValue = 0 ;
2076
2077     Rect sb = { 0 , 0 , 0 , 0 } ;
2078     if ( frameOptions & kTXNWantVScrollBarMask )
2079     {
2080         CreateScrollBarControl( m_txnWindow, &sb, 0, 0, 100, 1, true, gTXNScrollActionProc, &m_sbVertical );
2081         SetControlReference( m_sbVertical, (SInt32)this );
2082         SetControlAction( m_sbVertical, gTXNScrollActionProc );
2083         ShowControl( m_sbVertical );
2084         EmbedControl( m_sbVertical , m_controlRef );
2085         frameOptions &= ~kTXNWantVScrollBarMask;
2086     }
2087
2088     if ( frameOptions & kTXNWantHScrollBarMask )
2089     {
2090         CreateScrollBarControl( m_txnWindow, &sb, 0, 0, 100, 1, true, gTXNScrollActionProc, &m_sbHorizontal );
2091         SetControlReference( m_sbHorizontal, (SInt32)this );
2092         SetControlAction( m_sbHorizontal, gTXNScrollActionProc );
2093         ShowControl( m_sbHorizontal );
2094         EmbedControl( m_sbHorizontal, m_controlRef );
2095         frameOptions &= ~(kTXNWantHScrollBarMask | kTXNDrawGrowIconMask);
2096     }
2097
2098     err = TXNNewObject(
2099         NULL, m_txnWindow, &bounds, frameOptions,
2100         kTXNTextEditStyleFrameType, kTXNTextensionFile, kTXNSystemDefaultEncoding,
2101         &m_txn, &m_txnFrameID, NULL );
2102     verify_noerr( err );
2103
2104 #if 0
2105     TXNControlTag iControlTags[] = { kTXNUseCarbonEvents };
2106     TXNControlData iControlData[] = { { (UInt32)&cInfo } };
2107     int toptag = WXSIZEOF( iControlTags ) ;
2108     TXNCarbonEventInfo cInfo ;
2109     cInfo.useCarbonEvents = false ;
2110     cInfo.filler = 0 ;
2111     cInfo.flags = 0 ;
2112     cInfo.fDictionary = NULL ;
2113
2114     verify_noerr( TXNSetTXNObjectControls( m_txn, false, toptag, iControlTags, iControlData ) );
2115 #endif
2116
2117     TXNRegisterScrollInfoProc( m_txn, gTXNScrollInfoProc, (SInt32)this );
2118
2119     SetGWorld( origPort , origDev ) ;
2120
2121     return err;
2122 }
2123 #endif
2124
2125 // ----------------------------------------------------------------------------
2126 // MLTE control implementation (OSX part)
2127 // ----------------------------------------------------------------------------
2128
2129 // tiger multi-line textcontrols with no CR in the entire content
2130 // don't scroll automatically, so we need a hack.
2131 // This attempt only works 'before' the key (ie before CallNextEventHandler)
2132 // is processed, thus the scrolling always occurs one character too late, but
2133 // better than nothing ...
2134
2135 static const EventTypeSpec eventList[] =
2136 {
2137     { kEventClassTextInput, kEventTextInputUnicodeForKeyEvent } ,
2138 } ;
2139
2140 static pascal OSStatus wxMacUnicodeTextEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
2141 {
2142     OSStatus result = eventNotHandledErr ;
2143     wxMacMLTEHIViewControl* focus = (wxMacMLTEHIViewControl*) data ;
2144
2145     switch ( GetEventKind( event ) )
2146     {
2147         case kEventTextInputUnicodeForKeyEvent :
2148         {
2149             TXNOffset from , to ;
2150             TXNGetSelection( focus->GetTXNObject() , &from , &to ) ;
2151             if ( from == to )
2152                 TXNShowSelection( focus->GetTXNObject() , kTXNShowStart );
2153             result = CallNextEventHandler(handler,event);
2154             break;
2155         }
2156         default:
2157             break ;
2158     }
2159
2160     return result ;
2161 }
2162
2163 static pascal OSStatus wxMacTextControlEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
2164 {
2165     OSStatus result = eventNotHandledErr ;
2166
2167     switch ( GetEventClass( event ) )
2168     {
2169         case kEventClassTextInput :
2170             result = wxMacUnicodeTextEventHandler( handler , event , data ) ;
2171             break ;
2172
2173         default :
2174             break ;
2175     }
2176     return result ;
2177 }
2178
2179 DEFINE_ONE_SHOT_HANDLER_GETTER( wxMacTextControlEventHandler )
2180
2181 wxMacMLTEHIViewControl::wxMacMLTEHIViewControl( wxTextCtrl *wxPeer,
2182     const wxString& str,
2183     const wxPoint& pos,
2184     const wxSize& size, long style ) : wxMacMLTEControl( wxPeer )
2185 {
2186     m_font = wxPeer->GetFont() ;
2187     m_windowStyle = style ;
2188     Rect bounds = wxMacGetBoundsForControl( wxPeer , pos , size ) ;
2189     wxString st = str ;
2190     wxMacConvertNewlines10To13( &st ) ;
2191
2192     HIRect hr = {
2193         { bounds.left , bounds.top },
2194         { bounds.right - bounds.left, bounds.bottom - bounds.top } } ;
2195
2196     m_scrollView = NULL ;
2197     TXNFrameOptions frameOptions = FrameOptionsFromWXStyle( style ) ;
2198     if (( frameOptions & (kTXNWantVScrollBarMask | kTXNWantHScrollBarMask)) || (frameOptions &kTXNSingleLineOnlyMask))
2199     {
2200         if ( frameOptions & (kTXNWantVScrollBarMask | kTXNWantHScrollBarMask) )
2201         {
2202             HIScrollViewCreate(
2203                 (frameOptions & kTXNWantHScrollBarMask ? kHIScrollViewOptionsHorizScroll : 0)
2204                 | (frameOptions & kTXNWantVScrollBarMask ? kHIScrollViewOptionsVertScroll : 0) ,
2205                 &m_scrollView ) ;
2206         }
2207         else
2208         {
2209             HIScrollViewCreate(kHIScrollViewOptionsVertScroll,&m_scrollView);
2210             HIScrollViewSetScrollBarAutoHide(m_scrollView,true);
2211         }
2212
2213         HIViewSetFrame( m_scrollView, &hr );
2214         HIViewSetVisible( m_scrollView, true );
2215     }
2216
2217     m_textView = NULL ;
2218     HITextViewCreate( NULL , 0, frameOptions , &m_textView ) ;
2219     m_txn = HITextViewGetTXNObject( m_textView ) ;
2220     HIViewSetVisible( m_textView , true ) ;
2221     if ( m_scrollView )
2222     {
2223         HIViewAddSubview( m_scrollView , m_textView ) ;
2224         m_controlRef = m_scrollView ;
2225         wxMacControl::MacInstallEventHandler( m_textView, wxPeer ) ;
2226     }
2227     else
2228     {
2229         HIViewSetFrame( m_textView, &hr );
2230         m_controlRef = m_textView ;
2231     }
2232
2233     AdjustCreationAttributes( *wxWHITE , true ) ;
2234 #ifndef __LP64__
2235     wxMacWindowClipper c( GetWXPeer() ) ;
2236 #endif
2237     SetTXNData( st , kTXNStartOffset, kTXNEndOffset ) ;
2238
2239     TXNSetSelection( m_txn, 0, 0 );
2240     TXNShowSelection( m_txn, kTXNShowStart );
2241
2242     ::InstallControlEventHandler( m_textView , GetwxMacTextControlEventHandlerUPP(),
2243                                 GetEventTypeCount(eventList), eventList, this,
2244                                 NULL);
2245 }
2246
2247 wxMacMLTEHIViewControl::~wxMacMLTEHIViewControl()
2248 {
2249 }
2250
2251 OSStatus wxMacMLTEHIViewControl::SetFocus( ControlFocusPart focusPart )
2252 {
2253     return SetKeyboardFocus( GetControlOwner( m_textView ), m_textView, focusPart ) ;
2254 }
2255
2256 bool wxMacMLTEHIViewControl::HasFocus() const
2257 {
2258     ControlRef control ;
2259     if ( GetUserFocusWindow() == NULL )
2260         return false;
2261
2262     GetKeyboardFocus( GetUserFocusWindow() , &control ) ;
2263     return control == m_textView ;
2264 }
2265
2266 void wxMacMLTEHIViewControl::SetBackgroundColour(const wxColour& col )
2267 {
2268     HITextViewSetBackgroundColor( m_textView, col.GetPixel() );
2269 }
2270
2271 #endif // wxUSE_TEXTCTRL