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: button.cpp 54845 2008-07-30 14:52:41Z SC $
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/button.h"
  15
  16 #ifndef WX_PRECOMP
  17 #endif
  18
  19 #include "wx/osx/private.h"
  20
  21 wxSize wxButton::DoGetBestSize() const
  22 {
  23     // We only use help button bezel if we don't have any (non standard) label
  24     // to display in the button. Otherwise even wxID_HELP buttons look like
  25     // normal push buttons.
  26     if ( GetId() == wxID_HELP && GetLabel().empty() )
  27         return wxSize( 23 , 23 ) ;
  28
  29     wxRect r ;
  30     m_peer->GetBestRect(&r);
  31
  32     wxSize sz = r.GetSize();
  33     sz.x  = sz.x  + MacGetLeftBorderSize() +
  34     MacGetRightBorderSize();
  35     sz.y = sz.y + MacGetTopBorderSize() +
  36     MacGetBottomBorderSize();
  37
  38     const int wBtnStd = GetDefaultSize().x;
  39
  40     if ( (sz.x < wBtnStd) && !HasFlag(wxBU_EXACTFIT) )
  41         sz.x = wBtnStd;
  42
  43     return sz ;
  44 }
  45
  46 wxSize wxButton::GetDefaultSize()
  47 {
  48     return wxSize(84, 20);
  49 }
  50
  51 @implementation wxNSButton
  52
  53 + (void)initialize
  54 {
  55     static BOOL initialized = NO;
  56     if (!initialized)
  57     {
  58         initialized = YES;
  59         wxOSXCocoaClassAddWXMethods( self );
  60     }
  61 }
  62
  63 - (int) intValue
  64 {
  65     switch ( [self state] )
  66     {
  67         case NSOnState:
  68             return 1;
  69         case NSMixedState:
  70             return 2;
  71         default:
  72             return 0;
  73     }
  74 }
  75
  76 - (void) setIntValue: (int) v
  77 {
  78     switch( v )
  79     {
  80         case 2:
  81             [self setState:NSMixedState];
  82             break;
  83         case 1:
  84             [self setState:NSOnState];
  85             break;
  86         default :
  87             [self setState:NSOffState];
  88             break;
  89     }
  90 }
  91
  92 - (void) setTrackingTag: (NSTrackingRectTag)tag
  93 {
  94     rectTag = tag;
  95 }
  96
  97 - (NSTrackingRectTag) trackingTag
  98 {
  99     return rectTag;
 100 }
 101
 102 @end
 103
 104 @interface NSView(PossibleSizeMethods)
 105 - (NSControlSize)controlSize;
 106 @end
 107
 108 namespace
 109 {
 110
 111 class wxButtonCocoaImpl : public wxWidgetCocoaImpl, public wxButtonImpl
 112 {
 113 public:
 114     wxButtonCocoaImpl(wxWindowMac *wxpeer, wxNSButton *v)
 115         : wxWidgetCocoaImpl(wxpeer, v)
 116     {
 117     }
 118
 119     virtual void SetBitmap(const wxBitmap& bitmap)
 120     {
 121         // switch bezel style for plain pushbuttons
 122         if ( bitmap.IsOk() && [GetNSButton() bezelStyle] == NSRoundedBezelStyle )
 123             [GetNSButton() setBezelStyle:NSRegularSquareBezelStyle ];
 124
 125         wxWidgetCocoaImpl::SetBitmap(bitmap);
 126     }
 127
 128     void SetPressedBitmap( const wxBitmap& bitmap )
 129     {
 130         NSButton* button = GetNSButton();
 131         [button setAlternateImage: bitmap.GetNSImage()];
 132         [button setButtonType:NSMomentaryChangeButton];
 133     }
 134
 135     void GetLayoutInset(int &left , int &top , int &right, int &bottom) const
 136     {
 137         left = top = right = bottom = 0;
 138         NSControlSize size = NSRegularControlSize;
 139         if ( [m_osxView respondsToSelector:@selector(controlSize)] )
 140             size = [m_osxView controlSize];
 141         else if ([m_osxView respondsToSelector:@selector(cell)])
 142         {
 143             id cell = [(id)m_osxView cell];
 144             if ([cell respondsToSelector:@selector(controlSize)])
 145                 size = [cell controlSize];
 146         }
 147
 148         if ( [GetNSButton() bezelStyle] == NSRoundedBezelStyle )
 149         {
 150             switch( size )
 151             {
 152                 case NSRegularControlSize:
 153                     left = right = 6;
 154                     top = 4;
 155                     bottom = 8;
 156                     break;
 157                 case NSSmallControlSize:
 158                     left = right = 5;
 159                     top = 4;
 160                     bottom = 7;
 161                     break;
 162                 case NSMiniControlSize:
 163                     left = right = 1;
 164                     top = 0;
 165                     bottom = 2;
 166                     break;
 167             }
 168         }
 169     }
 170
 171
 172 private:
 173     NSButton *GetNSButton() const
 174     {
 175         wxASSERT( [m_osxView isKindOfClass:[NSButton class]] );
 176
 177         return static_cast<NSButton *>(m_osxView);
 178     }
 179 };
 180
 181 extern "C" void SetBezelStyleFromBorderFlags(NSButton *v, long style);
 182
 183 // set bezel style depending on the wxBORDER_XXX flags specified by the style
 184 void SetBezelStyleFromBorderFlags(NSButton *v, long style)
 185 {
 186     if ( style & wxBORDER_NONE )
 187     {
 188         [v setBezelStyle:NSShadowlessSquareBezelStyle];
 189         [v setBordered:NO];
 190     }
 191     else // we do have a border
 192     {
 193         // see trac #11128 for a thorough discussion
 194         if ( (style & wxBORDER_MASK) == wxBORDER_RAISED )
 195             [v setBezelStyle:NSRegularSquareBezelStyle];
 196         else if ( (style & wxBORDER_MASK) == wxBORDER_SUNKEN )
 197             [v setBezelStyle:NSSmallSquareBezelStyle];
 198         else
 199             [v setBezelStyle:NSShadowlessSquareBezelStyle];
 200     }
 201 }
 202
 203 } // anonymous namespace
 204
 205 wxWidgetImplType* wxWidgetImpl::CreateButton( wxWindowMac* wxpeer,
 206                                     wxWindowMac* WXUNUSED(parent),
 207                                     wxWindowID id,
 208                                     const wxString& label,
 209                                     const wxPoint& pos,
 210                                     const wxSize& size,
 211                                     long WXUNUSED(style),
 212                                     long WXUNUSED(extraStyle))
 213 {
 214     NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
 215     wxNSButton* v = [[wxNSButton alloc] initWithFrame:r];
 216
 217     // We can't display a custom label inside a button with help bezel style so
 218     // we only use it if we are using the default label. wxButton itself checks
 219     // if the label is just "Help" in which case it discards it and passes us
 220     // an empty string.
 221     if ( id == wxID_HELP && label.empty() )
 222     {
 223         [v setBezelStyle:NSHelpButtonBezelStyle];
 224     }
 225     else
 226     {
 227         [v setBezelStyle:NSRoundedBezelStyle];
 228     }
 229
 230     [v setButtonType:NSMomentaryPushInButton];
 231     return new wxButtonCocoaImpl( wxpeer, v );
 232 }
 233
 234 void wxWidgetCocoaImpl::SetDefaultButton( bool isDefault )
 235 {
 236     if ( [m_osxView isKindOfClass:[NSButton class]] )
 237     {
 238         if ( isDefault )
 239             [(NSButton*)m_osxView setKeyEquivalent: @"\r" ];
 240         else
 241             [(NSButton*)m_osxView setKeyEquivalent: @"" ];
 242     }
 243 }
 244
 245 void wxWidgetCocoaImpl::PerformClick()
 246 {
 247     if ([m_osxView isKindOfClass:[NSControl class]])
 248         [(NSControl*)m_osxView performClick:nil];
 249 }
 250
 251 #if wxUSE_BMPBUTTON
 252
 253 wxWidgetImplType* wxWidgetImpl::CreateBitmapButton( wxWindowMac* wxpeer,
 254                                                    wxWindowMac* WXUNUSED(parent),
 255                                                    wxWindowID WXUNUSED(id),
 256                                                    const wxBitmap& bitmap,
 257                                                    const wxPoint& pos,
 258                                                    const wxSize& size,
 259                                                    long style,
 260                                                    long WXUNUSED(extraStyle))
 261 {
 262     NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
 263     wxNSButton* v = [[wxNSButton alloc] initWithFrame:r];
 264
 265     SetBezelStyleFromBorderFlags(v, style);
 266
 267     if (bitmap.Ok())
 268         [v setImage:bitmap.GetNSImage() ];
 269
 270     [v setButtonType:NSMomentaryPushInButton];
 271     wxWidgetCocoaImpl* c = new wxButtonCocoaImpl( wxpeer, v );
 272     return c;
 273 }
 274
 275 #endif // wxUSE_BMPBUTTON
 276
 277 //
 278 // wxDisclosureButton implementation
 279 //
 280
 281 @interface wxDisclosureNSButton : NSButton
 282 {
 283
 284     BOOL isOpen;
 285 }
 286
 287 - (void) updateImage;
 288
 289 - (void) toggle;
 290
 291 + (NSImage *)rotateImage: (NSImage *)image;
 292
 293 @end
 294
 295 static const char * disc_triangle_xpm[] = {
 296 "10 9 4 1",
 297 "   c None",
 298 ".  c #737373",
 299 "+  c #989898",
 300 "-  c #c6c6c6",
 301 " .-       ",
 302 " ..+-     ",
 303 " ....+    ",
 304 " ......-  ",
 305 " .......- ",
 306 " ......-  ",
 307 " ....+    ",
 308 " ..+-     ",
 309 " .-       ",
 310 };
 311
 312 @implementation wxDisclosureNSButton
 313
 314 + (void)initialize
 315 {
 316     static BOOL initialized = NO;
 317     if (!initialized)
 318     {
 319         initialized = YES;
 320         wxOSXCocoaClassAddWXMethods( self );
 321     }
 322 }
 323
 324 - (id) initWithFrame:(NSRect) frame
 325 {
 326     self = [super initWithFrame:frame];
 327     isOpen = NO;
 328     [self setImagePosition:NSImageLeft];
 329     [self updateImage];
 330     return self;
 331 }
 332
 333 - (int) intValue
 334 {
 335     return isOpen ? 1 : 0;
 336 }
 337
 338 - (void) setIntValue: (int) v
 339 {
 340     isOpen = ( v != 0 );
 341     [self updateImage];
 342 }
 343
 344 - (void) toggle
 345 {
 346     isOpen = !isOpen;
 347     [self updateImage];
 348 }
 349
 350 wxCFRef<NSImage*> downArray ;
 351
 352 - (void) updateImage
 353 {
 354     static wxBitmap trianglebm(disc_triangle_xpm);
 355     if ( downArray.get() == NULL )
 356     {
 357         downArray.reset( [wxDisclosureNSButton rotateImage:trianglebm.GetNSImage()] );
 358     }
 359
 360     if ( isOpen )
 361         [self setImage:(NSImage*)downArray.get()];
 362     else
 363         [self setImage:trianglebm.GetNSImage()];
 364 }
 365
 366 + (NSImage *)rotateImage: (NSImage *)image
 367 {
 368     NSSize imageSize = [image size];
 369     NSSize newImageSize = NSMakeSize(imageSize.height, imageSize.width);
 370     NSImage* newImage = [[NSImage alloc] initWithSize: newImageSize];
 371
 372     [newImage lockFocus];
 373
 374     NSAffineTransform* tm = [NSAffineTransform transform];
 375     [tm translateXBy:newImageSize.width/2 yBy:newImageSize.height/2];
 376     [tm rotateByDegrees:-90];
 377     [tm translateXBy:-newImageSize.width/2 yBy:-newImageSize.height/2];
 378     [tm concat];
 379
 380
 381     [image drawInRect:NSMakeRect(0,0,newImageSize.width, newImageSize.height)
 382         fromRect:NSZeroRect operation:NSCompositeCopy fraction:1.0];
 383
 384     [newImage unlockFocus];
 385     return newImage;
 386 }
 387
 388 @end
 389
 390 class wxDisclosureTriangleCocoaImpl : public wxWidgetCocoaImpl
 391 {
 392 public :
 393     wxDisclosureTriangleCocoaImpl(wxWindowMac* peer , WXWidget w) :
 394         wxWidgetCocoaImpl(peer, w)
 395     {
 396     }
 397
 398     ~wxDisclosureTriangleCocoaImpl()
 399     {
 400     }
 401
 402     virtual void controlAction(WXWidget slf, void* _cmd, void *sender)
 403     {
 404         wxDisclosureNSButton* db = (wxDisclosureNSButton*)m_osxView;
 405         [db toggle];
 406         wxWidgetCocoaImpl::controlAction(slf, _cmd, sender );
 407     }
 408 };
 409
 410 wxWidgetImplType* wxWidgetImpl::CreateDisclosureTriangle( wxWindowMac* wxpeer,
 411                                     wxWindowMac* WXUNUSED(parent),
 412                                     wxWindowID WXUNUSED(winid),
 413                                     const wxString& label,
 414                                     const wxPoint& pos,
 415                                     const wxSize& size,
 416                                     long style,
 417                                     long WXUNUSED(extraStyle))
 418 {
 419     NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
 420     wxDisclosureNSButton* v = [[wxDisclosureNSButton alloc] initWithFrame:r];
 421     if ( !label.empty() )
 422         [v setTitle:wxCFStringRef(label).AsNSString()];
 423
 424     SetBezelStyleFromBorderFlags(v, style);
 425
 426     return new wxDisclosureTriangleCocoaImpl( wxpeer, v );
 427 }