src/osx/cocoa/textctrl.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/cocoa/textctrl.mm
   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 #include "wx/textcompleter.h"
  49
  50 #include "wx/osx/private.h"
  51 #include "wx/osx/cocoa/private/textimpl.h"
  52
  53 @interface NSView(EditableView)
  54 - (BOOL)isEditable;
  55 - (void)setEditable:(BOOL)flag;
  56 - (BOOL)isSelectable;
  57 - (void)setSelectable:(BOOL)flag;
  58 @end
  59
  60 // An object of this class is created before the text is modified
  61 // programmatically and destroyed as soon as this is done. It does several
  62 // things, like ensuring that the control is editable to allow setting its text
  63 // at all and eating any unwanted focus loss events from textDidEndEditing:
  64 // which don't really correspond to focus change.
  65 class wxMacEditHelper
  66 {
  67 public :
  68     wxMacEditHelper( NSView* textView )
  69     {
  70         m_viewPreviouslyEdited = ms_viewCurrentlyEdited;
  71         ms_viewCurrentlyEdited =
  72         m_textView = textView;
  73         m_formerEditable = YES;
  74         if ( textView )
  75         {
  76             m_formerEditable = [textView isEditable];
  77             m_formerSelectable = [textView isSelectable];
  78             [textView setEditable:YES];
  79         }
  80     }
  81
  82     ~wxMacEditHelper()
  83     {
  84         if ( m_textView )
  85         {
  86             [m_textView setEditable:m_formerEditable];
  87             [m_textView setSelectable:m_formerSelectable];
  88         }
  89
  90         ms_viewCurrentlyEdited = m_viewPreviouslyEdited;
  91     }
  92
  93     // Returns the last view we were instantiated for or NULL.
  94     static NSView *GetCurrentlyEditedView() { return ms_viewCurrentlyEdited; }
  95
  96 protected :
  97     BOOL m_formerEditable ;
  98     BOOL m_formerSelectable;
  99     NSView* m_textView;
 100
 101     // The original value of ms_viewCurrentlyEdited when this object was
 102     // created.
 103     NSView* m_viewPreviouslyEdited;
 104
 105     static NSView* ms_viewCurrentlyEdited;
 106 } ;
 107
 108 NSView* wxMacEditHelper::ms_viewCurrentlyEdited = nil;
 109
 110 // a minimal NSFormatter that just avoids getting too long entries
 111 @interface wxMaximumLengthFormatter : NSFormatter
 112 {
 113     int maxLength;
 114 }
 115
 116 @end
 117
 118 @implementation wxMaximumLengthFormatter
 119
 120 - (id)init
 121 {
 122     self = [super init];
 123     maxLength = 0;
 124     return self;
 125 }
 126
 127 - (void) setMaxLength:(int) maxlen
 128 {
 129     maxLength = maxlen;
 130 }
 131
 132 - (NSString *)stringForObjectValue:(id)anObject
 133 {
 134     if(![anObject isKindOfClass:[NSString class]])
 135         return nil;
 136     return [NSString stringWithString:anObject];
 137 }
 138
 139 - (BOOL)getObjectValue:(id *)obj forString:(NSString *)string errorDescription:(NSString  **)error
 140 {
 141     *obj = [NSString stringWithString:string];
 142     return YES;
 143 }
 144
 145 - (BOOL)isPartialStringValid:(NSString **)partialStringPtr proposedSelectedRange:(NSRangePointer)proposedSelRangePtr
 146               originalString:(NSString *)origString originalSelectedRange:(NSRange)origSelRange errorDescription:(NSString **)error
 147 {
 148     int len = [*partialStringPtr length];
 149     if ( maxLength > 0 && len > maxLength )
 150     {
 151         // TODO wxEVT_COMMAND_TEXT_MAXLEN
 152         return NO;
 153     }
 154     return YES;
 155 }
 156
 157 @end
 158
 159 @implementation wxNSSecureTextField
 160
 161 + (void)initialize
 162 {
 163     static BOOL initialized = NO;
 164     if (!initialized)
 165     {
 166         initialized = YES;
 167         wxOSXCocoaClassAddWXMethods( self );
 168     }
 169 }
 170
 171 - (void)controlTextDidChange:(NSNotification *)aNotification
 172 {
 173     wxUnusedVar(aNotification);
 174     wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( self );
 175     if ( impl )
 176         impl->controlTextDidChange();
 177 }
 178
 179 - (void)controlTextDidEndEditing:(NSNotification *)aNotification
 180 {
 181     wxUnusedVar(aNotification);
 182     wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( self );
 183     if ( impl )
 184     {
 185         impl->DoNotifyFocusEvent( false, NULL );
 186     }
 187 }
 188
 189 - (BOOL)control:(NSControl*)control textView:(NSTextView*)textView doCommandBySelector:(SEL)commandSelector
 190 {
 191     wxUnusedVar(textView);
 192
 193     BOOL handled = NO;
 194
 195     wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( control );
 196     if ( impl  )
 197     {
 198         wxWindow* wxpeer = (wxWindow*) impl->GetWXPeer();
 199         if ( wxpeer )
 200         {
 201             if (commandSelector == @selector(insertNewline:))
 202             {
 203                 wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(wxpeer), wxTopLevelWindow);
 204                 if ( tlw && tlw->GetDefaultItem() )
 205                 {
 206                     wxButton *def = wxDynamicCast(tlw->GetDefaultItem(), wxButton);
 207                     if ( def && def->IsEnabled() )
 208                     {
 209                         wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, def->GetId() );
 210                         event.SetEventObject(def);
 211                         def->Command(event);
 212                         handled = YES;
 213                     }
 214                 }
 215             }
 216         }
 217     }
 218
 219     return handled;
 220 }
 221
 222 @end
 223
 224 @interface wxNSTextScrollView : NSScrollView
 225 {
 226 }
 227 @end
 228
 229 @implementation wxNSTextScrollView
 230
 231 + (void)initialize
 232 {
 233     static BOOL initialized = NO;
 234     if (!initialized)
 235     {
 236         initialized = YES;
 237         wxOSXCocoaClassAddWXMethods( self );
 238     }
 239 }
 240
 241 @end
 242
 243 @implementation wxNSTextFieldEditor
 244
 245 - (void) keyDown:(NSEvent*) event
 246 {
 247     wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( (WXWidget) [self delegate] );
 248     lastKeyDownEvent = event;
 249     if ( impl == NULL || !impl->DoHandleKeyEvent(event) )
 250         [super keyDown:event];
 251     lastKeyDownEvent = nil;
 252 }
 253
 254 - (void) keyUp:(NSEvent*) event
 255 {
 256     wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( (WXWidget) [self delegate] );
 257     if ( impl == NULL || !impl->DoHandleKeyEvent(event) )
 258         [super keyUp:event];
 259 }
 260
 261 - (void) flagsChanged:(NSEvent*) event
 262 {
 263     wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( (WXWidget) [self delegate] );
 264     if ( impl == NULL || !impl->DoHandleKeyEvent(event) )
 265         [super flagsChanged:event];
 266 }
 267
 268 - (BOOL) performKeyEquivalent:(NSEvent*) event
 269 {
 270     BOOL retval = [super performKeyEquivalent:event];
 271     return retval;
 272 }
 273
 274 - (void) insertText:(id) str
 275 {
 276     wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( (WXWidget) [self delegate] );
 277     if ( impl == NULL || lastKeyDownEvent==nil || !impl->DoHandleCharEvent(lastKeyDownEvent, str) )
 278     {
 279         [super insertText:str];
 280     }
 281 }
 282
 283 @end
 284
 285 @implementation wxNSTextView
 286
 287 + (void)initialize
 288 {
 289     static BOOL initialized = NO;
 290     if (!initialized)
 291     {
 292         initialized = YES;
 293         wxOSXCocoaClassAddWXMethods( self );
 294     }
 295 }
 296
 297 - (void)textDidChange:(NSNotification *)aNotification
 298 {
 299     wxUnusedVar(aNotification);
 300     wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( self );
 301     if ( impl )
 302         impl->controlTextDidChange();
 303 }
 304
 305 - (void) setEnabled:(BOOL) flag
 306 {
 307     // from Technical Q&A QA1461
 308     if (flag) {
 309         [self setTextColor: [NSColor controlTextColor]];
 310
 311     } else {
 312         [self setTextColor: [NSColor disabledControlTextColor]];
 313     }
 314
 315     [self setSelectable: flag];
 316     [self setEditable: flag];
 317 }
 318
 319 - (BOOL) isEnabled
 320 {
 321     return [self isEditable];
 322 }
 323
 324 - (void)textDidEndEditing:(NSNotification *)aNotification
 325 {
 326     wxUnusedVar(aNotification);
 327
 328     if ( self == wxMacEditHelper::GetCurrentlyEditedView() )
 329     {
 330         // This notification is generated as the result of calling our own
 331         // wxTextCtrl method (e.g. WriteText()) and doesn't correspond to any
 332         // real focus loss event so skip generating it.
 333         return;
 334     }
 335
 336     wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( self );
 337     if ( impl )
 338     {
 339         impl->DoNotifyFocusEvent( false, NULL );
 340     }
 341 }
 342
 343 @end
 344
 345 @implementation wxNSTextField
 346
 347 + (void)initialize
 348 {
 349     static BOOL initialized = NO;
 350     if (!initialized)
 351     {
 352         initialized = YES;
 353         wxOSXCocoaClassAddWXMethods( self );
 354     }
 355 }
 356
 357 - (id) initWithFrame:(NSRect) frame
 358 {
 359     self = [super initWithFrame:frame];
 360     fieldEditor = nil;
 361     return self;
 362 }
 363
 364 - (void) dealloc
 365 {
 366     [fieldEditor release];
 367     [super dealloc];
 368 }
 369
 370 - (void) setFieldEditor:(wxNSTextFieldEditor*) editor
 371 {
 372     if ( editor != fieldEditor )
 373     {
 374         [editor retain];
 375         [fieldEditor release];
 376         fieldEditor = editor;
 377     }
 378 }
 379
 380 - (wxNSTextFieldEditor*) fieldEditor
 381 {
 382     return fieldEditor;
 383 }
 384
 385 - (void) setEnabled:(BOOL) flag
 386 {
 387     [super setEnabled: flag];
 388
 389     if (![self drawsBackground]) {
 390         // Static text is drawn incorrectly when disabled.
 391         // For an explanation, see
 392         // http://www.cocoabuilder.com/archive/message/cocoa/2006/7/21/168028
 393         if (flag) {
 394             [self setTextColor: [NSColor controlTextColor]];
 395         } else {
 396             [self setTextColor: [NSColor secondarySelectedControlColor]];
 397         }
 398     }
 399 }
 400
 401 - (void)controlTextDidChange:(NSNotification *)aNotification
 402 {
 403     wxUnusedVar(aNotification);
 404     wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( self );
 405     if ( impl )
 406         impl->controlTextDidChange();
 407 }
 408
 409 - (NSArray *)control:(NSControl *)control textView:(NSTextView *)textView completions:(NSArray *)words
 410  forPartialWordRange:(NSRange)charRange indexOfSelectedItem:(NSInteger*)index
 411 {
 412     NSMutableArray* matches = NULL;
 413
 414     wxTextWidgetImpl* impl = (wxNSTextFieldControl * ) wxWidgetImpl::FindFromWXWidget( self );
 415     wxTextEntry * const entry = impl->GetTextEntry();
 416     wxTextCompleter * const completer = entry->OSXGetCompleter();
 417     if ( completer )
 418     {
 419         const wxString prefix = entry->GetValue();
 420         if ( completer->Start(prefix) )
 421         {
 422             const wxString
 423                 wordStart = wxCFStringRef::AsString(
 424                               [[textView string] substringWithRange:charRange]
 425                             );
 426
 427             matches = [NSMutableArray array];
 428             for ( ;; )
 429             {
 430                 const wxString s = completer->GetNext();
 431                 if ( s.empty() )
 432                     break;
 433
 434                 // Normally the completer should return only the strings
 435                 // starting with the prefix, but there could be exceptions
 436                 // and, for compatibility with MSW which simply ignores all
 437                 // entries that don't match the current text control contents,
 438                 // we ignore them as well. Besides, our own wxTextCompleterFixed
 439                 // doesn't respect this rule and, moreover, we need to extract
 440                 // just the rest of the string anyhow.
 441                 wxString completion;
 442                 if ( s.StartsWith(prefix, &completion) )
 443                 {
 444                     // We discarded the entire prefix above but actually we
 445                     // should include the part of it that consists of the
 446                     // beginning of the current word, otherwise it would be
 447                     // lost when completion is accepted as OS X supposes that
 448                     // our matches do start with the "partial word range"
 449                     // passed to us.
 450                     const wxCFStringRef fullWord(wordStart + completion);
 451                     [matches addObject: fullWord.AsNSString()];
 452                 }
 453             }
 454         }
 455     }
 456
 457     return matches;
 458 }
 459
 460 - (BOOL)control:(NSControl*)control textView:(NSTextView*)textView doCommandBySelector:(SEL)commandSelector
 461 {
 462     wxUnusedVar(textView);
 463     wxUnusedVar(control);
 464
 465     BOOL handled = NO;
 466
 467     // send back key events wx' common code knows how to handle
 468
 469     wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( self );
 470     if ( impl  )
 471     {
 472         wxWindow* wxpeer = (wxWindow*) impl->GetWXPeer();
 473         if ( wxpeer )
 474         {
 475             if (commandSelector == @selector(insertNewline:))
 476             {
 477                 [textView insertNewlineIgnoringFieldEditor:self];
 478                 handled = YES;
 479             }
 480             else if ( commandSelector == @selector(insertTab:))
 481             {
 482                 [textView insertTabIgnoringFieldEditor:self];
 483                 handled = YES;
 484             }
 485             else if ( commandSelector == @selector(insertBacktab:))
 486             {
 487                 [textView insertTabIgnoringFieldEditor:self];
 488                 handled = YES;
 489             }
 490         }
 491     }
 492
 493     return handled;
 494 }
 495
 496 - (void)controlTextDidEndEditing:(NSNotification *)aNotification
 497 {
 498     wxUnusedVar(aNotification);
 499     wxWidgetCocoaImpl* impl = (wxWidgetCocoaImpl* ) wxWidgetImpl::FindFromWXWidget( self );
 500     if ( impl )
 501     {
 502         impl->DoNotifyFocusEvent( false, NULL );
 503     }
 504 }
 505 @end
 506
 507 // wxNSTextViewControl
 508
 509 wxNSTextViewControl::wxNSTextViewControl( wxTextCtrl *wxPeer, WXWidget w )
 510     : wxWidgetCocoaImpl(wxPeer, w),
 511       wxTextWidgetImpl(wxPeer)
 512 {
 513     wxNSTextScrollView* sv = (wxNSTextScrollView*) w;
 514     m_scrollView = sv;
 515
 516     [m_scrollView setHasVerticalScroller:YES];
 517     [m_scrollView setHasHorizontalScroller:NO];
 518     [m_scrollView setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
 519     NSSize contentSize = [m_scrollView contentSize];
 520
 521     wxNSTextView* tv = [[wxNSTextView alloc] initWithFrame: NSMakeRect(0, 0,
 522             contentSize.width, contentSize.height)];
 523     m_textView = tv;
 524     [tv setVerticallyResizable:YES];
 525     [tv setHorizontallyResizable:NO];
 526     [tv setAutoresizingMask:NSViewWidthSizable];
 527
 528     [m_scrollView setDocumentView: tv];
 529
 530     [tv setDelegate: tv];
 531
 532     InstallEventHandler(tv);
 533 }
 534
 535 wxNSTextViewControl::~wxNSTextViewControl()
 536 {
 537     if (m_textView)
 538         [m_textView setDelegate: nil];
 539 }
 540
 541 bool wxNSTextViewControl::CanFocus() const
 542 {
 543     // since this doesn't work (return false), we hardcode
 544     // if (m_textView)
 545     //    return [m_textView canBecomeKeyView];
 546     return true;
 547 }
 548
 549 wxString wxNSTextViewControl::GetStringValue() const
 550 {
 551     if (m_textView)
 552     {
 553         wxString result = wxCFStringRef::AsString([m_textView string], m_wxPeer->GetFont().GetEncoding());
 554         wxMacConvertNewlines13To10( &result ) ;
 555         return result;
 556     }
 557     return wxEmptyString;
 558 }
 559 void wxNSTextViewControl::SetStringValue( const wxString &str)
 560 {
 561     wxString st = str;
 562     wxMacConvertNewlines10To13( &st );
 563     wxMacEditHelper helper(m_textView);
 564
 565     if (m_textView)
 566         [m_textView setString: wxCFStringRef( st , m_wxPeer->GetFont().GetEncoding() ).AsNSString()];
 567 }
 568
 569 void wxNSTextViewControl::Copy()
 570 {
 571     if (m_textView)
 572         [m_textView copy:nil];
 573
 574 }
 575
 576 void wxNSTextViewControl::Cut()
 577 {
 578     if (m_textView)
 579         [m_textView cut:nil];
 580 }
 581
 582 void wxNSTextViewControl::Paste()
 583 {
 584     if (m_textView)
 585         [m_textView paste:nil];
 586 }
 587
 588 bool wxNSTextViewControl::CanPaste() const
 589 {
 590     return true;
 591 }
 592
 593 void wxNSTextViewControl::SetEditable(bool editable)
 594 {
 595     if (m_textView)
 596         [m_textView setEditable: editable];
 597 }
 598
 599 void wxNSTextViewControl::GetSelection( long* from, long* to) const
 600 {
 601     if (m_textView)
 602     {
 603         NSRange range = [m_textView selectedRange];
 604         *from = range.location;
 605         *to = range.location + range.length;
 606     }
 607 }
 608
 609 void wxNSTextViewControl::SetSelection( long from , long to )
 610 {
 611     long textLength = [[m_textView string] length];
 612     if ((from == -1) && (to == -1))
 613     {
 614         from = 0 ;
 615         to = textLength ;
 616     }
 617     else
 618     {
 619         from = wxMin(textLength,wxMax(from,0)) ;
 620         if ( to == -1 )
 621             to = textLength;
 622         else
 623             to = wxMax(0,wxMin(textLength,to)) ;
 624     }
 625
 626     NSRange selrange = NSMakeRange(from, to-from);
 627     [m_textView setSelectedRange:selrange];
 628     [m_textView scrollRangeToVisible:selrange];
 629 }
 630
 631 void wxNSTextViewControl::WriteText(const wxString& str)
 632 {
 633     wxString st = str;
 634     wxMacConvertNewlines10To13( &st );
 635     wxMacEditHelper helper(m_textView);
 636     NSEvent* formerEvent = m_lastKeyDownEvent;
 637     m_lastKeyDownEvent = nil;
 638     [m_textView insertText:wxCFStringRef( st , m_wxPeer->GetFont().GetEncoding() ).AsNSString()];
 639     m_lastKeyDownEvent = formerEvent;
 640 }
 641
 642 void wxNSTextViewControl::SetFont( const wxFont & font , const wxColour& WXUNUSED(foreground) , long WXUNUSED(windowStyle), bool WXUNUSED(ignoreBlack) )
 643 {
 644     if ([m_textView respondsToSelector:@selector(setFont:)])
 645         [m_textView setFont: font.OSXGetNSFont()];
 646 }
 647
 648 bool wxNSTextViewControl::GetStyle(long position, wxTextAttr& style)
 649 {
 650     if (m_textView && position >=0)
 651     {
 652         NSFont* font = NULL;
 653         NSColor* bgcolor = NULL;
 654         NSColor* fgcolor = NULL;
 655         // NOTE: It appears that other platforms accept GetStyle with the position == length
 656         // but that NSTextStorage does not accept length as a valid position.
 657         // Therefore we return the default control style in that case.
 658         if (position < (long) [[m_textView string] length])
 659         {
 660             NSTextStorage* storage = [m_textView textStorage];
 661             font = [[storage attribute:NSFontAttributeName atIndex:position effectiveRange:NULL] autorelease];
 662             bgcolor = [[storage attribute:NSBackgroundColorAttributeName atIndex:position effectiveRange:NULL] autorelease];
 663             fgcolor = [[storage attribute:NSForegroundColorAttributeName atIndex:position effectiveRange:NULL] autorelease];
 664         }
 665         else
 666         {
 667             NSDictionary* attrs = [m_textView typingAttributes];
 668             font = [[attrs objectForKey:NSFontAttributeName] autorelease];
 669             bgcolor = [[attrs objectForKey:NSBackgroundColorAttributeName] autorelease];
 670             fgcolor = [[attrs objectForKey:NSForegroundColorAttributeName] autorelease];
 671         }
 672
 673         if (font)
 674             style.SetFont(wxFont(font));
 675
 676         if (bgcolor)
 677             style.SetBackgroundColour(wxColour(bgcolor));
 678
 679         if (fgcolor)
 680             style.SetTextColour(wxColour(fgcolor));
 681         return true;
 682     }
 683
 684     return false;
 685 }
 686
 687 void wxNSTextViewControl::SetStyle(long start,
 688                                 long end,
 689                                 const wxTextAttr& style)
 690 {
 691     if (m_textView) {
 692         NSRange range = NSMakeRange(start, end-start);
 693         if (start == -1 && end == -1)
 694             range = [m_textView selectedRange];
 695
 696         NSTextStorage* storage = [m_textView textStorage];
 697
 698         wxFont font = style.GetFont();
 699         if (style.HasFont() && font.IsOk())
 700             [storage addAttribute:NSFontAttributeName value:font.OSXGetNSFont() range:range];
 701
 702         wxColour bgcolor = style.GetBackgroundColour();
 703         if (style.HasBackgroundColour() && bgcolor.IsOk())
 704             [storage addAttribute:NSBackgroundColorAttributeName value:bgcolor.OSXGetNSColor() range:range];
 705
 706         wxColour fgcolor = style.GetTextColour();
 707         if (style.HasTextColour() && fgcolor.IsOk())
 708             [storage addAttribute:NSForegroundColorAttributeName value:fgcolor.OSXGetNSColor() range:range];
 709     }
 710 }
 711
 712 void wxNSTextViewControl::CheckSpelling(bool check)
 713 {
 714     if (m_textView)
 715         [m_textView setContinuousSpellCheckingEnabled: check];
 716 }
 717
 718 wxSize wxNSTextViewControl::GetBestSize() const
 719 {
 720     if (m_textView && [m_textView layoutManager])
 721     {
 722         NSRect rect = [[m_textView layoutManager] usedRectForTextContainer: [m_textView textContainer]];
 723         return wxSize((int)(rect.size.width + [m_textView textContainerInset].width),
 724                       (int)(rect.size.height + [m_textView textContainerInset].height));
 725     }
 726     return wxSize(0,0);
 727 }
 728
 729 // wxNSTextFieldControl
 730
 731 wxNSTextFieldControl::wxNSTextFieldControl( wxTextCtrl *text, WXWidget w )
 732     : wxWidgetCocoaImpl(text, w),
 733       wxTextWidgetImpl(text)
 734 {
 735     Init(w);
 736 }
 737
 738 wxNSTextFieldControl::wxNSTextFieldControl(wxWindow *wxPeer,
 739                                            wxTextEntry *entry,
 740                                            WXWidget w)
 741     : wxWidgetCocoaImpl(wxPeer, w),
 742       wxTextWidgetImpl(entry)
 743 {
 744     Init(w);
 745 }
 746
 747 void wxNSTextFieldControl::Init(WXWidget w)
 748 {
 749     NSTextField wxOSX_10_6_AND_LATER(<NSTextFieldDelegate>) *tf = (NSTextField wxOSX_10_6_AND_LATER(<NSTextFieldDelegate>)*) w;
 750     m_textField = tf;
 751     [m_textField setDelegate: tf];
 752     m_selStart = m_selEnd = 0;
 753     m_hasEditor = [w isKindOfClass:[NSTextField class]];
 754 }
 755
 756 wxNSTextFieldControl::~wxNSTextFieldControl()
 757 {
 758     if (m_textField)
 759         [m_textField setDelegate: nil];
 760 }
 761
 762 wxString wxNSTextFieldControl::GetStringValue() const
 763 {
 764     return wxCFStringRef::AsString([m_textField stringValue], m_wxPeer->GetFont().GetEncoding());
 765 }
 766
 767 void wxNSTextFieldControl::SetStringValue( const wxString &str)
 768 {
 769     wxMacEditHelper helper(m_textField);
 770     [m_textField setStringValue: wxCFStringRef( str , m_wxPeer->GetFont().GetEncoding() ).AsNSString()];
 771 }
 772
 773 void wxNSTextFieldControl::SetMaxLength(unsigned long len)
 774 {
 775     wxMaximumLengthFormatter* formatter = [[[wxMaximumLengthFormatter alloc] init] autorelease];
 776     [formatter setMaxLength:len];
 777     [m_textField setFormatter:formatter];
 778 }
 779
 780 void wxNSTextFieldControl::Copy()
 781 {
 782     NSText* editor = [m_textField currentEditor];
 783     if ( editor )
 784     {
 785         [editor copy:nil];
 786     }
 787 }
 788
 789 void wxNSTextFieldControl::Cut()
 790 {
 791     NSText* editor = [m_textField currentEditor];
 792     if ( editor )
 793     {
 794         [editor cut:nil];
 795     }
 796 }
 797
 798 void wxNSTextFieldControl::Paste()
 799 {
 800     NSText* editor = [m_textField currentEditor];
 801     if ( editor )
 802     {
 803         [editor paste:nil];
 804     }
 805 }
 806
 807 bool wxNSTextFieldControl::CanPaste() const
 808 {
 809     return true;
 810 }
 811
 812 void wxNSTextFieldControl::SetEditable(bool editable)
 813 {
 814     [m_textField setEditable:editable];
 815 }
 816
 817 void wxNSTextFieldControl::GetSelection( long* from, long* to) const
 818 {
 819     NSText* editor = [m_textField currentEditor];
 820     if ( editor )
 821     {
 822         NSRange range = [editor selectedRange];
 823         *from = range.location;
 824         *to = range.location + range.length;
 825     }
 826     else
 827     {
 828         *from = m_selStart;
 829         *to = m_selEnd;
 830     }
 831 }
 832
 833 void wxNSTextFieldControl::SetSelection( long from , long to )
 834 {
 835     long textLength = [[m_textField stringValue] length];
 836     if ((from == -1) && (to == -1))
 837     {
 838         from = 0 ;
 839         to = textLength ;
 840     }
 841     else
 842     {
 843         from = wxMin(textLength,wxMax(from,0)) ;
 844         if ( to == -1 )
 845             to = textLength;
 846         else
 847             to = wxMax(0,wxMin(textLength,to)) ;
 848     }
 849
 850     NSText* editor = [m_textField currentEditor];
 851     if ( editor )
 852     {
 853         [editor setSelectedRange:NSMakeRange(from, to-from)];
 854     }
 855     else
 856     {
 857         m_selStart = from;
 858         m_selEnd = to;
 859     }
 860 }
 861
 862 void wxNSTextFieldControl::WriteText(const wxString& str)
 863 {
 864     NSEvent* formerEvent = m_lastKeyDownEvent;
 865     m_lastKeyDownEvent = nil;
 866     NSText* editor = [m_textField currentEditor];
 867     if ( editor )
 868     {
 869         wxMacEditHelper helper(m_textField);
 870         BOOL hasUndo = [editor respondsToSelector:@selector(setAllowsUndo:)];
 871         if ( hasUndo )
 872             [editor setAllowsUndo:NO];
 873         [editor insertText:wxCFStringRef( str , m_wxPeer->GetFont().GetEncoding() ).AsNSString()];
 874         if ( hasUndo )
 875             [editor setAllowsUndo:YES];
 876     }
 877     else
 878     {
 879         wxString val = GetStringValue() ;
 880         long start , end ;
 881         GetSelection( &start , &end ) ;
 882         val.Remove( start , end - start ) ;
 883         val.insert( start , str ) ;
 884         SetStringValue( val ) ;
 885         SetSelection( start + str.length() , start + str.length() ) ;
 886     }
 887     m_lastKeyDownEvent = formerEvent;
 888 }
 889
 890 void wxNSTextFieldControl::controlAction(WXWidget WXUNUSED(slf),
 891     void* WXUNUSED(_cmd), void *WXUNUSED(sender))
 892 {
 893     wxWindow* wxpeer = (wxWindow*) GetWXPeer();
 894     if ( wxpeer && (wxpeer->GetWindowStyle() & wxTE_PROCESS_ENTER) )
 895     {
 896         wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, wxpeer->GetId());
 897         event.SetEventObject( wxpeer );
 898         event.SetString( GetTextEntry()->GetValue() );
 899         wxpeer->HandleWindowEvent( event );
 900     }
 901 }
 902
 903 bool wxNSTextFieldControl::SetHint(const wxString& hint)
 904 {
 905     wxCFStringRef hintstring(hint);
 906     [[m_textField cell] setPlaceholderString:hintstring.AsNSString()];
 907     return true;
 908 }
 909
 910 //
 911 //
 912 //
 913
 914 wxWidgetImplType* wxWidgetImpl::CreateTextControl( wxTextCtrl* wxpeer,
 915                                     wxWindowMac* WXUNUSED(parent),
 916                                     wxWindowID WXUNUSED(id),
 917                                     const wxString& WXUNUSED(str),
 918                                     const wxPoint& pos,
 919                                     const wxSize& size,
 920                                     long style,
 921                                     long WXUNUSED(extraStyle))
 922 {
 923     NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
 924     wxWidgetCocoaImpl* c = NULL;
 925
 926     if ( style & wxTE_MULTILINE || style & wxTE_RICH || style & wxTE_RICH2 )
 927     {
 928         wxNSTextScrollView* v = nil;
 929         v = [[wxNSTextScrollView alloc] initWithFrame:r];
 930         c = new wxNSTextViewControl( wxpeer, v );
 931         c->SetNeedsFocusRect( true );
 932     }
 933     else
 934     {
 935         NSTextField* v = nil;
 936         if ( style & wxTE_PASSWORD )
 937             v = [[wxNSSecureTextField alloc] initWithFrame:r];
 938         else
 939             v = [[wxNSTextField alloc] initWithFrame:r];
 940
 941         if ( style & wxTE_RIGHT)
 942         {
 943             [v setAlignment:NSRightTextAlignment];
 944         }
 945         else if ( style & wxTE_CENTRE)
 946         {
 947             [v setAlignment:NSCenterTextAlignment];
 948         }
 949
 950         NSTextFieldCell* cell = [v cell];
 951         [cell setScrollable:YES];
 952         // TODO: Remove if we definitely are sure, it's not needed
 953         // as setting scrolling to yes, should turn off any wrapping
 954         // [cell setLineBreakMode:NSLineBreakByClipping];
 955
 956         c = new wxNSTextFieldControl( wxpeer, wxpeer, v );
 957
 958         if ( (style & wxNO_BORDER) || (style & wxSIMPLE_BORDER) )
 959         {
 960             // under 10.7 the textcontrol can draw its own focus
 961             // even if no border is shown, on previous systems
 962             // we have to emulate this
 963             [v setBezeled:NO];
 964             [v setBordered:NO];
 965             if ( UMAGetSystemVersion() < 0x1070 )
 966                 c->SetNeedsFocusRect( true );
 967         }
 968         else
 969         {
 970             // use native border
 971             c->SetNeedsFrame(false);
 972         }
 973     }
 974
 975     return c;
 976 }
 977
 978
 979 #endif // wxUSE_TEXTCTRL