src/osx/cocoa/button.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/cocoa/button.mm
   3 // Purpose:     wxButton
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // Copyright:   (c) Stefan Csomor
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #include "wx/wxprec.h"
  12
  13 #ifndef WX_PRECOMP
  14 #include "wx/object.h"
  15 #endif
  16
  17 #include "wx/button.h"
  18 #include "wx/toplevel.h"
  19 #include "wx/tglbtn.h"
  20
  21 #include "wx/osx/private.h"
  22
  23 #if wxUSE_MARKUP
  24     #include "wx/osx/cocoa/private/markuptoattr.h"
  25 #endif // wxUSE_MARKUP
  26
  27
  28 @implementation wxNSButton
  29
  30 + (void)initialize
  31 {
  32     static BOOL initialized = NO;
  33     if (!initialized)
  34     {
  35         initialized = YES;
  36         wxOSXCocoaClassAddWXMethods( self );
  37     }
  38 }
  39
  40 - (int) intValue
  41 {
  42     switch ( [self state] )
  43     {
  44         case NSOnState:
  45             return 1;
  46         case NSMixedState:
  47             return 2;
  48         default:
  49             return 0;
  50     }
  51 }
  52
  53 - (void) setIntValue: (int) v
  54 {
  55     switch( v )
  56     {
  57         case 2:
  58             [self setState:NSMixedState];
  59             break;
  60         case 1:
  61             [self setState:NSOnState];
  62             break;
  63         default :
  64             [self setState:NSOffState];
  65             break;
  66     }
  67 }
  68
  69 - (void) setTrackingTag: (NSTrackingRectTag)tag
  70 {
  71     rectTag = tag;
  72 }
  73
  74 - (NSTrackingRectTag) trackingTag
  75 {
  76     return rectTag;
  77 }
  78
  79 @end
  80
  81 @interface NSView(PossibleSizeMethods)
  82 - (NSControlSize)controlSize;
  83 @end
  84
  85 wxButtonCocoaImpl::wxButtonCocoaImpl(wxWindowMac *wxpeer, wxNSButton *v)
  86 : wxWidgetCocoaImpl(wxpeer, v)
  87 {
  88     SetNeedsFrame(false);
  89 }
  90
  91 void wxButtonCocoaImpl::SetBitmap(const wxBitmap& bitmap)
  92 {
  93     // switch bezel style for plain pushbuttons
  94     if ( bitmap.IsOk() )
  95     {
  96         if ([GetNSButton() bezelStyle] == NSRoundedBezelStyle)
  97             [GetNSButton() setBezelStyle:NSRegularSquareBezelStyle];
  98     }
  99     else
 100     {
 101         [GetNSButton() setBezelStyle:NSRoundedBezelStyle];
 102     }
 103
 104     wxWidgetCocoaImpl::SetBitmap(bitmap);
 105 }
 106
 107 #if wxUSE_MARKUP
 108 void wxButtonCocoaImpl::SetLabelMarkup(const wxString& markup)
 109 {
 110     wxMarkupToAttrString toAttr(GetWXPeer(), markup);
 111     NSMutableAttributedString *attrString = toAttr.GetNSAttributedString();
 112
 113     // Button text is always centered.
 114     NSMutableParagraphStyle *
 115     paragraphStyle = [[NSMutableParagraphStyle alloc] init];
 116     [paragraphStyle setAlignment: NSCenterTextAlignment];
 117     [attrString addAttribute:NSParagraphStyleAttributeName
 118                        value:paragraphStyle
 119                        range:NSMakeRange(0, [attrString length])];
 120     [paragraphStyle release];
 121
 122     [GetNSButton() setAttributedTitle:attrString];
 123 }
 124 #endif // wxUSE_MARKUP
 125
 126 void wxButtonCocoaImpl::SetPressedBitmap( const wxBitmap& bitmap )
 127 {
 128     NSButton* button = GetNSButton();
 129     [button setAlternateImage: bitmap.GetNSImage()];
 130     if ( GetWXPeer()->IsKindOf(wxCLASSINFO(wxToggleButton)) )
 131     {
 132         [button setButtonType:NSToggleButton];
 133     }
 134     else
 135     {
 136         [button setButtonType:NSMomentaryChangeButton];
 137     }
 138 }
 139
 140 void wxButtonCocoaImpl::GetLayoutInset(int &left , int &top , int &right, int &bottom) const
 141 {
 142     left = top = right = bottom = 0;
 143     NSControlSize size = NSRegularControlSize;
 144     if ( [m_osxView respondsToSelector:@selector(controlSize)] )
 145         size = [m_osxView controlSize];
 146     else if ([m_osxView respondsToSelector:@selector(cell)])
 147     {
 148         id cell = [(id)m_osxView cell];
 149         if ([cell respondsToSelector:@selector(controlSize)])
 150             size = [cell controlSize];
 151     }
 152
 153     if ( [GetNSButton() bezelStyle] == NSRoundedBezelStyle )
 154     {
 155         switch( size )
 156         {
 157             case NSRegularControlSize:
 158                 left = right = 6;
 159                 top = 4;
 160                 bottom = 8;
 161                 break;
 162             case NSSmallControlSize:
 163                 left = right = 5;
 164                 top = 4;
 165                 bottom = 7;
 166                 break;
 167             case NSMiniControlSize:
 168                 left = right = 1;
 169                 top = 0;
 170                 bottom = 2;
 171                 break;
 172         }
 173     }
 174 }
 175
 176 void wxButtonCocoaImpl::SetAcceleratorFromLabel(const wxString& label)
 177 {
 178     const int accelPos = wxControl::FindAccelIndex(label);
 179     if ( accelPos != wxNOT_FOUND )
 180     {
 181         wxString accelstring(label[accelPos + 1]); // Skip '&' itself
 182         accelstring.MakeLower();
 183         wxCFStringRef cfText(accelstring);
 184         [GetNSButton() setKeyEquivalent:cfText.AsNSString()];
 185         [GetNSButton() setKeyEquivalentModifierMask:NSCommandKeyMask];
 186     }
 187     else
 188     {
 189         [GetNSButton() setKeyEquivalent:@""];
 190     }
 191 }
 192
 193 NSButton *wxButtonCocoaImpl::GetNSButton() const
 194 {
 195     wxASSERT( [m_osxView isKindOfClass:[NSButton class]] );
 196
 197     return static_cast<NSButton *>(m_osxView);
 198 }
 199
 200 // Set bezel style depending on the wxBORDER_XXX flags specified by the style
 201 // and also accounting for the label (bezels are different for multiline
 202 // buttons and normal ones) and the ID (special bezel is used for help button).
 203 //
 204 // This is extern because it's also used in src/osx/cocoa/tglbtn.mm.
 205 extern "C"
 206 void
 207 SetBezelStyleFromBorderFlags(NSButton *v,
 208                              long style,
 209                              wxWindowID winid,
 210                              const wxString& label = wxString(),
 211                              const wxBitmap& bitmap = wxBitmap())
 212 {
 213     // We can't display a custom label inside a button with help bezel style so
 214     // we only use it if we are using the default label. wxButton itself checks
 215     // if the label is just "Help" in which case it discards it and passes us
 216     // an empty string.
 217     if ( winid == wxID_HELP && label.empty() )
 218     {
 219         [v setBezelStyle:NSHelpButtonBezelStyle];
 220     }
 221     else
 222     {
 223         // We can't use rounded bezel styles neither for multiline buttons nor
 224         // for buttons containing (big) icons as they are only meant to be used
 225         // at certain sizes, so the style used depends on whether the label is
 226         // single or multi line.
 227         const bool
 228             isSimpleText = (label.find_first_of("\n\r") == wxString::npos)
 229                                 && (!bitmap.IsOk() || bitmap.GetHeight() < 20);
 230
 231         NSBezelStyle bezel;
 232         switch ( style & wxBORDER_MASK )
 233         {
 234             case wxBORDER_NONE:
 235                 bezel = NSShadowlessSquareBezelStyle;
 236                 [v setBordered:NO];
 237                 break;
 238
 239             case wxBORDER_SIMPLE:
 240                 bezel = NSShadowlessSquareBezelStyle;
 241                 break;
 242
 243             case wxBORDER_SUNKEN:
 244                 bezel = isSimpleText ? NSTexturedRoundedBezelStyle
 245                                      : NSSmallSquareBezelStyle;
 246                 break;
 247
 248             default:
 249                 wxFAIL_MSG( "Unknown border style" );
 250                 // fall through
 251
 252             case 0:
 253             case wxBORDER_STATIC:
 254             case wxBORDER_RAISED:
 255             case wxBORDER_THEME:
 256                 bezel = isSimpleText ? NSRoundedBezelStyle
 257                                      : NSRegularSquareBezelStyle;
 258                 break;
 259         }
 260
 261         [v setBezelStyle:bezel];
 262     }
 263 }
 264
 265 // Set the keyboard accelerator key from the label (e.g. "Click &Me")
 266 void wxButton::OSXUpdateAfterLabelChange(const wxString& label)
 267 {
 268     wxButtonCocoaImpl *impl = static_cast<wxButtonCocoaImpl*>(GetPeer());
 269
 270     // Update the bezel style as may be necessary if our new label is multi
 271     // line while the old one wasn't (or vice versa).
 272     SetBezelStyleFromBorderFlags(impl->GetNSButton(),
 273                                  GetWindowStyle(),
 274                                  GetId(),
 275                                  label);
 276
 277
 278     // Skip setting the accelerator for the default buttons as this would
 279     // overwrite the default "Enter" which should be preserved.
 280     wxTopLevelWindow * const
 281         tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
 282     if ( tlw )
 283     {
 284         if ( tlw->GetDefaultItem() == this )
 285             return;
 286     }
 287
 288     impl->SetAcceleratorFromLabel(label);
 289 }
 290
 291
 292 wxWidgetImplType* wxWidgetImpl::CreateButton( wxWindowMac* wxpeer,
 293                                     wxWindowMac* WXUNUSED(parent),
 294                                     wxWindowID winid,
 295                                     const wxString& label,
 296                                     const wxPoint& pos,
 297                                     const wxSize& size,
 298                                     long style,
 299                                     long WXUNUSED(extraStyle))
 300 {
 301     NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
 302     wxNSButton* v = [[wxNSButton alloc] initWithFrame:r];
 303
 304     SetBezelStyleFromBorderFlags(v, style, winid, label);
 305
 306     [v setButtonType:NSMomentaryPushInButton];
 307     wxButtonCocoaImpl* const impl = new wxButtonCocoaImpl( wxpeer, v );
 308     impl->SetAcceleratorFromLabel(label);
 309     return impl;
 310 }
 311
 312 void wxWidgetCocoaImpl::SetDefaultButton( bool isDefault )
 313 {
 314     if ( [m_osxView isKindOfClass:[NSButton class]] )
 315     {
 316         if ( isDefault )
 317         {
 318             [(NSButton*)m_osxView setKeyEquivalent: @"\r" ];
 319             [(NSButton*)m_osxView setKeyEquivalentModifierMask: 0];
 320         }
 321         else
 322             [(NSButton*)m_osxView setKeyEquivalent: @"" ];
 323     }
 324 }
 325
 326 void wxWidgetCocoaImpl::PerformClick()
 327 {
 328     if ([m_osxView isKindOfClass:[NSControl class]])
 329         [(NSControl*)m_osxView performClick:nil];
 330 }
 331
 332 #if wxUSE_BMPBUTTON
 333
 334 wxWidgetImplType* wxWidgetImpl::CreateBitmapButton( wxWindowMac* wxpeer,
 335                                                    wxWindowMac* WXUNUSED(parent),
 336                                                    wxWindowID winid,
 337                                                    const wxBitmap& bitmap,
 338                                                    const wxPoint& pos,
 339                                                    const wxSize& size,
 340                                                    long style,
 341                                                    long WXUNUSED(extraStyle))
 342 {
 343     NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
 344     wxNSButton* v = [[wxNSButton alloc] initWithFrame:r];
 345
 346     SetBezelStyleFromBorderFlags(v, style, winid, wxString(), bitmap);
 347
 348     if (bitmap.IsOk())
 349         [v setImage:bitmap.GetNSImage() ];
 350
 351     [v setButtonType:NSMomentaryPushInButton];
 352     wxWidgetCocoaImpl* c = new wxButtonCocoaImpl( wxpeer, v );
 353     return c;
 354 }
 355
 356 #endif // wxUSE_BMPBUTTON
 357
 358 //
 359 // wxDisclosureButton implementation
 360 //
 361
 362 @interface wxDisclosureNSButton : NSButton
 363 {
 364
 365     BOOL isOpen;
 366 }
 367
 368 - (void) updateImage;
 369
 370 - (void) toggle;
 371
 372 + (NSImage *)rotateImage: (NSImage *)image;
 373
 374 @end
 375
 376 static const char * disc_triangle_xpm[] = {
 377 "10 9 4 1",
 378 "   c None",
 379 ".  c #737373",
 380 "+  c #989898",
 381 "-  c #c6c6c6",
 382 " .-       ",
 383 " ..+-     ",
 384 " ....+    ",
 385 " ......-  ",
 386 " .......- ",
 387 " ......-  ",
 388 " ....+    ",
 389 " ..+-     ",
 390 " .-       ",
 391 };
 392
 393 @implementation wxDisclosureNSButton
 394
 395 + (void)initialize
 396 {
 397     static BOOL initialized = NO;
 398     if (!initialized)
 399     {
 400         initialized = YES;
 401         wxOSXCocoaClassAddWXMethods( self );
 402     }
 403 }
 404
 405 - (id) initWithFrame:(NSRect) frame
 406 {
 407     self = [super initWithFrame:frame];
 408     isOpen = NO;
 409     [self setImagePosition:NSImageLeft];
 410     [self updateImage];
 411     return self;
 412 }
 413
 414 - (int) intValue
 415 {
 416     return isOpen ? 1 : 0;
 417 }
 418
 419 - (void) setIntValue: (int) v
 420 {
 421     isOpen = ( v != 0 );
 422     [self updateImage];
 423 }
 424
 425 - (void) toggle
 426 {
 427     isOpen = !isOpen;
 428     [self updateImage];
 429 }
 430
 431 wxCFRef<NSImage*> downArray ;
 432
 433 - (void) updateImage
 434 {
 435     static wxBitmap trianglebm(disc_triangle_xpm);
 436     if ( downArray.get() == NULL )
 437     {
 438         downArray.reset( [[wxDisclosureNSButton rotateImage:trianglebm.GetNSImage()] retain] );
 439     }
 440
 441     if ( isOpen )
 442         [self setImage:(NSImage*)downArray.get()];
 443     else
 444         [self setImage:trianglebm.GetNSImage()];
 445 }
 446
 447 + (NSImage *)rotateImage: (NSImage *)image
 448 {
 449     NSSize imageSize = [image size];
 450     NSSize newImageSize = NSMakeSize(imageSize.height, imageSize.width);
 451     NSImage* newImage = [[NSImage alloc] initWithSize: newImageSize];
 452
 453     [newImage lockFocus];
 454
 455     NSAffineTransform* tm = [NSAffineTransform transform];
 456     [tm translateXBy:newImageSize.width/2 yBy:newImageSize.height/2];
 457     [tm rotateByDegrees:-90];
 458     [tm translateXBy:-newImageSize.width/2 yBy:-newImageSize.height/2];
 459     [tm concat];
 460
 461
 462     [image drawInRect:NSMakeRect(0,0,newImageSize.width, newImageSize.height)
 463         fromRect:NSZeroRect operation:NSCompositeCopy fraction:1.0];
 464
 465     [newImage unlockFocus];
 466     return [newImage autorelease];
 467 }
 468
 469 @end
 470
 471 class wxDisclosureTriangleCocoaImpl : public wxWidgetCocoaImpl
 472 {
 473 public :
 474     wxDisclosureTriangleCocoaImpl(wxWindowMac* peer , WXWidget w) :
 475         wxWidgetCocoaImpl(peer, w)
 476     {
 477     }
 478
 479     ~wxDisclosureTriangleCocoaImpl()
 480     {
 481     }
 482
 483     virtual void controlAction(WXWidget slf, void* _cmd, void *sender)
 484     {
 485         wxDisclosureNSButton* db = (wxDisclosureNSButton*)m_osxView;
 486         [db toggle];
 487         wxWidgetCocoaImpl::controlAction(slf, _cmd, sender );
 488     }
 489 };
 490
 491 wxWidgetImplType* wxWidgetImpl::CreateDisclosureTriangle( wxWindowMac* wxpeer,
 492                                     wxWindowMac* WXUNUSED(parent),
 493                                     wxWindowID winid,
 494                                     const wxString& label,
 495                                     const wxPoint& pos,
 496                                     const wxSize& size,
 497                                     long style,
 498                                     long WXUNUSED(extraStyle))
 499 {
 500     NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
 501     wxDisclosureNSButton* v = [[wxDisclosureNSButton alloc] initWithFrame:r];
 502     if ( !label.empty() )
 503         [v setTitle:wxCFStringRef(label).AsNSString()];
 504
 505     SetBezelStyleFromBorderFlags(v, style, winid, label);
 506
 507     return new wxDisclosureTriangleCocoaImpl( wxpeer, v );
 508 }