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 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #ifndef WX_PRECOMP
  15 #include "wx/object.h"
  16 #endif
  17
  18 #include "wx/button.h"
  19
  20 #include "wx/osx/private.h"
  21
  22 #if wxUSE_MARKUP
  23     #include "wx/osx/cocoa/private/markuptoattr.h"
  24 #endif // wxUSE_MARKUP
  25
  26
  27 @implementation wxNSButton
  28
  29 + (void)initialize
  30 {
  31     static BOOL initialized = NO;
  32     if (!initialized)
  33     {
  34         initialized = YES;
  35         wxOSXCocoaClassAddWXMethods( self );
  36     }
  37 }
  38
  39 - (int) intValue
  40 {
  41     switch ( [self state] )
  42     {
  43         case NSOnState:
  44             return 1;
  45         case NSMixedState:
  46             return 2;
  47         default:
  48             return 0;
  49     }
  50 }
  51
  52 - (void) setIntValue: (int) v
  53 {
  54     switch( v )
  55     {
  56         case 2:
  57             [self setState:NSMixedState];
  58             break;
  59         case 1:
  60             [self setState:NSOnState];
  61             break;
  62         default :
  63             [self setState:NSOffState];
  64             break;
  65     }
  66 }
  67
  68 - (void) setTrackingTag: (NSTrackingRectTag)tag
  69 {
  70     rectTag = tag;
  71 }
  72
  73 - (NSTrackingRectTag) trackingTag
  74 {
  75     return rectTag;
  76 }
  77
  78 @end
  79
  80 @interface NSView(PossibleSizeMethods)
  81 - (NSControlSize)controlSize;
  82 @end
  83
  84 namespace
  85 {
  86
  87 class wxButtonCocoaImpl : public wxWidgetCocoaImpl, public wxButtonImpl
  88 {
  89 public:
  90     wxButtonCocoaImpl(wxWindowMac *wxpeer, wxNSButton *v)
  91         : wxWidgetCocoaImpl(wxpeer, v)
  92     {
  93         SetNeedsFrame(false);
  94     }
  95
  96     virtual void SetBitmap(const wxBitmap& bitmap)
  97     {
  98         // switch bezel style for plain pushbuttons
  99         if ( bitmap.IsOk() )
 100         {
 101             if ([GetNSButton() bezelStyle] == NSRoundedBezelStyle)
 102                 [GetNSButton() setBezelStyle:NSRegularSquareBezelStyle];
 103         }
 104         else
 105         {
 106             [GetNSButton() setBezelStyle:NSRoundedBezelStyle];
 107         }
 108
 109         wxWidgetCocoaImpl::SetBitmap(bitmap);
 110     }
 111
 112 #if wxUSE_MARKUP
 113     virtual void SetLabelMarkup(const wxString& markup)
 114     {
 115         wxMarkupToAttrString toAttr(GetWXPeer(), markup);
 116         NSMutableAttributedString *attrString = toAttr.GetNSAttributedString();
 117
 118         // Button text is always centered.
 119         NSMutableParagraphStyle *
 120             paragraphStyle = [[NSMutableParagraphStyle alloc] init];
 121         [paragraphStyle setAlignment: NSCenterTextAlignment];
 122         [attrString addAttribute:NSParagraphStyleAttributeName
 123                     value:paragraphStyle
 124                     range:NSMakeRange(0, [attrString length])];
 125         [paragraphStyle release];
 126
 127         [GetNSButton() setAttributedTitle:attrString];
 128     }
 129 #endif // wxUSE_MARKUP
 130
 131     void SetPressedBitmap( const wxBitmap& bitmap )
 132     {
 133         NSButton* button = GetNSButton();
 134         [button setAlternateImage: bitmap.GetNSImage()];
 135         [button setButtonType:NSMomentaryChangeButton];
 136     }
 137
 138     void GetLayoutInset(int &left , int &top , int &right, int &bottom) const
 139     {
 140         left = top = right = bottom = 0;
 141         NSControlSize size = NSRegularControlSize;
 142         if ( [m_osxView respondsToSelector:@selector(controlSize)] )
 143             size = [m_osxView controlSize];
 144         else if ([m_osxView respondsToSelector:@selector(cell)])
 145         {
 146             id cell = [(id)m_osxView cell];
 147             if ([cell respondsToSelector:@selector(controlSize)])
 148                 size = [cell controlSize];
 149         }
 150
 151         if ( [GetNSButton() bezelStyle] == NSRoundedBezelStyle )
 152         {
 153             switch( size )
 154             {
 155                 case NSRegularControlSize:
 156                     left = right = 6;
 157                     top = 4;
 158                     bottom = 8;
 159                     break;
 160                 case NSSmallControlSize:
 161                     left = right = 5;
 162                     top = 4;
 163                     bottom = 7;
 164                     break;
 165                 case NSMiniControlSize:
 166                     left = right = 1;
 167                     top = 0;
 168                     bottom = 2;
 169                     break;
 170             }
 171         }
 172     }
 173
 174
 175 private:
 176     NSButton *GetNSButton() const
 177     {
 178         wxASSERT( [m_osxView isKindOfClass:[NSButton class]] );
 179
 180         return static_cast<NSButton *>(m_osxView);
 181     }
 182 };
 183
 184 } // anonymous namespace
 185
 186 extern "C" void SetBezelStyleFromBorderFlags(NSButton *v, long style);
 187
 188 // set bezel style depending on the wxBORDER_XXX flags specified by the style
 189 void SetBezelStyleFromBorderFlags(NSButton *v, long style)
 190 {
 191     if ( style & wxBORDER_NONE )
 192     {
 193         [v setBezelStyle:NSShadowlessSquareBezelStyle];
 194         [v setBordered:NO];
 195     }
 196     else // we do have a border
 197     {
 198         // see trac #11128 for a thorough discussion
 199         if ( (style & wxBORDER_MASK) == wxBORDER_RAISED )
 200             [v setBezelStyle:NSRegularSquareBezelStyle];
 201         else if ( (style & wxBORDER_MASK) == wxBORDER_SUNKEN )
 202             [v setBezelStyle:NSSmallSquareBezelStyle];
 203         else if ( (style & wxBORDER_MASK) == wxBORDER_SIMPLE )
 204             [v setBezelStyle:NSShadowlessSquareBezelStyle];
 205         else
 206             [v setBezelStyle:NSRegularSquareBezelStyle];
 207     }
 208 }
 209
 210
 211 wxWidgetImplType* wxWidgetImpl::CreateButton( wxWindowMac* wxpeer,
 212                                     wxWindowMac* WXUNUSED(parent),
 213                                     wxWindowID id,
 214                                     const wxString& label,
 215                                     const wxPoint& pos,
 216                                     const wxSize& size,
 217                                     long style,
 218                                     long WXUNUSED(extraStyle))
 219 {
 220     NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
 221     wxNSButton* v = [[wxNSButton alloc] initWithFrame:r];
 222
 223     // We can't display a custom label inside a button with help bezel style so
 224     // we only use it if we are using the default label. wxButton itself checks
 225     // if the label is just "Help" in which case it discards it and passes us
 226     // an empty string.
 227     if ( id == wxID_HELP && label.empty() )
 228     {
 229         [v setBezelStyle:NSHelpButtonBezelStyle];
 230     }
 231     else
 232     {
 233         if ( style & wxBORDER_NONE )
 234         {
 235             [v setBezelStyle:NSShadowlessSquareBezelStyle];
 236             [v setBordered:NO];
 237         }
 238         else
 239         {
 240             // the following styles only exist for certain sizes, so avoid them for
 241             // multi-line
 242             if ( label.Find('\n' ) == wxNOT_FOUND && label.Find('\r' ) == wxNOT_FOUND)
 243             {
 244                 if ( (style & wxBORDER_MASK) == wxBORDER_RAISED )
 245                     [v setBezelStyle:NSRoundedBezelStyle];
 246                 else if ( (style & wxBORDER_MASK) == wxBORDER_SUNKEN )
 247                     [v setBezelStyle:NSTexturedRoundedBezelStyle];
 248                 else if ( (style & wxBORDER_MASK) == wxBORDER_SIMPLE )
 249                     [v setBezelStyle:NSShadowlessSquareBezelStyle];
 250                 else
 251                     [v setBezelStyle:NSRoundedBezelStyle];
 252             }
 253             else
 254             {
 255                 if ( (style & wxBORDER_MASK) == wxBORDER_RAISED )
 256                     [v setBezelStyle:NSRegularSquareBezelStyle];
 257                 else if ( (style & wxBORDER_MASK) == wxBORDER_SUNKEN )
 258                     [v setBezelStyle:NSSmallSquareBezelStyle];
 259                 else if ( (style & wxBORDER_MASK) == wxBORDER_SIMPLE )
 260                     [v setBezelStyle:NSShadowlessSquareBezelStyle];
 261                 else
 262                     [v setBezelStyle:NSRegularSquareBezelStyle];
 263             }
 264
 265         }
 266     }
 267
 268     [v setButtonType:NSMomentaryPushInButton];
 269     return new wxButtonCocoaImpl( wxpeer, v );
 270 }
 271
 272 void wxWidgetCocoaImpl::SetDefaultButton( bool isDefault )
 273 {
 274     if ( [m_osxView isKindOfClass:[NSButton class]] )
 275     {
 276         if ( isDefault )
 277             [(NSButton*)m_osxView setKeyEquivalent: @"\r" ];
 278         else
 279             [(NSButton*)m_osxView setKeyEquivalent: @"" ];
 280     }
 281 }
 282
 283 void wxWidgetCocoaImpl::PerformClick()
 284 {
 285     if ([m_osxView isKindOfClass:[NSControl class]])
 286         [(NSControl*)m_osxView performClick:nil];
 287 }
 288
 289 #if wxUSE_BMPBUTTON
 290
 291 wxWidgetImplType* wxWidgetImpl::CreateBitmapButton( wxWindowMac* wxpeer,
 292                                                    wxWindowMac* WXUNUSED(parent),
 293                                                    wxWindowID WXUNUSED(id),
 294                                                    const wxBitmap& bitmap,
 295                                                    const wxPoint& pos,
 296                                                    const wxSize& size,
 297                                                    long style,
 298                                                    long WXUNUSED(extraStyle))
 299 {
 300     NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
 301     wxNSButton* v = [[wxNSButton alloc] initWithFrame:r];
 302
 303     SetBezelStyleFromBorderFlags(v, style);
 304
 305     if (bitmap.IsOk())
 306         [v setImage:bitmap.GetNSImage() ];
 307
 308     [v setButtonType:NSMomentaryPushInButton];
 309     wxWidgetCocoaImpl* c = new wxButtonCocoaImpl( wxpeer, v );
 310     return c;
 311 }
 312
 313 #endif // wxUSE_BMPBUTTON
 314
 315 //
 316 // wxDisclosureButton implementation
 317 //
 318
 319 @interface wxDisclosureNSButton : NSButton
 320 {
 321
 322     BOOL isOpen;
 323 }
 324
 325 - (void) updateImage;
 326
 327 - (void) toggle;
 328
 329 + (NSImage *)rotateImage: (NSImage *)image;
 330
 331 @end
 332
 333 static const char * disc_triangle_xpm[] = {
 334 "10 9 4 1",
 335 "   c None",
 336 ".  c #737373",
 337 "+  c #989898",
 338 "-  c #c6c6c6",
 339 " .-       ",
 340 " ..+-     ",
 341 " ....+    ",
 342 " ......-  ",
 343 " .......- ",
 344 " ......-  ",
 345 " ....+    ",
 346 " ..+-     ",
 347 " .-       ",
 348 };
 349
 350 @implementation wxDisclosureNSButton
 351
 352 + (void)initialize
 353 {
 354     static BOOL initialized = NO;
 355     if (!initialized)
 356     {
 357         initialized = YES;
 358         wxOSXCocoaClassAddWXMethods( self );
 359     }
 360 }
 361
 362 - (id) initWithFrame:(NSRect) frame
 363 {
 364     self = [super initWithFrame:frame];
 365     isOpen = NO;
 366     [self setImagePosition:NSImageLeft];
 367     [self updateImage];
 368     return self;
 369 }
 370
 371 - (int) intValue
 372 {
 373     return isOpen ? 1 : 0;
 374 }
 375
 376 - (void) setIntValue: (int) v
 377 {
 378     isOpen = ( v != 0 );
 379     [self updateImage];
 380 }
 381
 382 - (void) toggle
 383 {
 384     isOpen = !isOpen;
 385     [self updateImage];
 386 }
 387
 388 wxCFRef<NSImage*> downArray ;
 389
 390 - (void) updateImage
 391 {
 392     static wxBitmap trianglebm(disc_triangle_xpm);
 393     if ( downArray.get() == NULL )
 394     {
 395         downArray.reset( [[wxDisclosureNSButton rotateImage:trianglebm.GetNSImage()] retain] );
 396     }
 397
 398     if ( isOpen )
 399         [self setImage:(NSImage*)downArray.get()];
 400     else
 401         [self setImage:trianglebm.GetNSImage()];
 402 }
 403
 404 + (NSImage *)rotateImage: (NSImage *)image
 405 {
 406     NSSize imageSize = [image size];
 407     NSSize newImageSize = NSMakeSize(imageSize.height, imageSize.width);
 408     NSImage* newImage = [[NSImage alloc] initWithSize: newImageSize];
 409
 410     [newImage lockFocus];
 411
 412     NSAffineTransform* tm = [NSAffineTransform transform];
 413     [tm translateXBy:newImageSize.width/2 yBy:newImageSize.height/2];
 414     [tm rotateByDegrees:-90];
 415     [tm translateXBy:-newImageSize.width/2 yBy:-newImageSize.height/2];
 416     [tm concat];
 417
 418
 419     [image drawInRect:NSMakeRect(0,0,newImageSize.width, newImageSize.height)
 420         fromRect:NSZeroRect operation:NSCompositeCopy fraction:1.0];
 421
 422     [newImage unlockFocus];
 423     return [newImage autorelease];
 424 }
 425
 426 @end
 427
 428 class wxDisclosureTriangleCocoaImpl : public wxWidgetCocoaImpl
 429 {
 430 public :
 431     wxDisclosureTriangleCocoaImpl(wxWindowMac* peer , WXWidget w) :
 432         wxWidgetCocoaImpl(peer, w)
 433     {
 434     }
 435
 436     ~wxDisclosureTriangleCocoaImpl()
 437     {
 438     }
 439
 440     virtual void controlAction(WXWidget slf, void* _cmd, void *sender)
 441     {
 442         wxDisclosureNSButton* db = (wxDisclosureNSButton*)m_osxView;
 443         [db toggle];
 444         wxWidgetCocoaImpl::controlAction(slf, _cmd, sender );
 445     }
 446 };
 447
 448 wxWidgetImplType* wxWidgetImpl::CreateDisclosureTriangle( wxWindowMac* wxpeer,
 449                                     wxWindowMac* WXUNUSED(parent),
 450                                     wxWindowID WXUNUSED(winid),
 451                                     const wxString& label,
 452                                     const wxPoint& pos,
 453                                     const wxSize& size,
 454                                     long style,
 455                                     long WXUNUSED(extraStyle))
 456 {
 457     NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
 458     wxDisclosureNSButton* v = [[wxDisclosureNSButton alloc] initWithFrame:r];
 459     if ( !label.empty() )
 460         [v setTitle:wxCFStringRef(label).AsNSString()];
 461
 462     SetBezelStyleFromBorderFlags(v, style);
 463
 464     return new wxDisclosureTriangleCocoaImpl( wxpeer, v );
 465 }