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