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 #include "wx/toplevel.h"
  20 #include "wx/tglbtn.h"
  21
  22 #include "wx/osx/private.h"
  23
  24 #if wxUSE_MARKUP
  25     #include "wx/osx/cocoa/private/markuptoattr.h"
  26 #endif // wxUSE_MARKUP
  27
  28
  29 @implementation wxNSButton
  30
  31 + (void)initialize
  32 {
  33     static BOOL initialized = NO;
  34     if (!initialized)
  35     {
  36         initialized = YES;
  37         wxOSXCocoaClassAddWXMethods( self );
  38     }
  39 }
  40
  41 - (int) intValue
  42 {
  43     switch ( [self state] )
  44     {
  45         case NSOnState:
  46             return 1;
  47         case NSMixedState:
  48             return 2;
  49         default:
  50             return 0;
  51     }
  52 }
  53
  54 - (void) setIntValue: (int) v
  55 {
  56     switch( v )
  57     {
  58         case 2:
  59             [self setState:NSMixedState];
  60             break;
  61         case 1:
  62             [self setState:NSOnState];
  63             break;
  64         default :
  65             [self setState:NSOffState];
  66             break;
  67     }
  68 }
  69
  70 - (void) setTrackingTag: (NSTrackingRectTag)tag
  71 {
  72     rectTag = tag;
  73 }
  74
  75 - (NSTrackingRectTag) trackingTag
  76 {
  77     return rectTag;
  78 }
  79
  80 @end
  81
  82 @interface NSView(PossibleSizeMethods)
  83 - (NSControlSize)controlSize;
  84 @end
  85
  86 wxButtonCocoaImpl::wxButtonCocoaImpl(wxWindowMac *wxpeer, wxNSButton *v)
  87 : wxWidgetCocoaImpl(wxpeer, v)
  88 {
  89     SetNeedsFrame(false);
  90 }
  91
  92 void wxButtonCocoaImpl::SetBitmap(const wxBitmap& bitmap)
  93 {
  94     // switch bezel style for plain pushbuttons
  95     if ( bitmap.IsOk() )
  96     {
  97         if ([GetNSButton() bezelStyle] == NSRoundedBezelStyle)
  98             [GetNSButton() setBezelStyle:NSRegularSquareBezelStyle];
  99     }
 100     else
 101     {
 102         [GetNSButton() setBezelStyle:NSRoundedBezelStyle];
 103     }
 104
 105     wxWidgetCocoaImpl::SetBitmap(bitmap);
 106 }
 107
 108 #if wxUSE_MARKUP
 109 void wxButtonCocoaImpl::SetLabelMarkup(const wxString& markup)
 110 {
 111     wxMarkupToAttrString toAttr(GetWXPeer(), markup);
 112     NSMutableAttributedString *attrString = toAttr.GetNSAttributedString();
 113
 114     // Button text is always centered.
 115     NSMutableParagraphStyle *
 116     paragraphStyle = [[NSMutableParagraphStyle alloc] init];
 117     [paragraphStyle setAlignment: NSCenterTextAlignment];
 118     [attrString addAttribute:NSParagraphStyleAttributeName
 119                        value:paragraphStyle
 120                        range:NSMakeRange(0, [attrString length])];
 121     [paragraphStyle release];
 122
 123     [GetNSButton() setAttributedTitle:attrString];
 124 }
 125 #endif // wxUSE_MARKUP
 126
 127 void wxButtonCocoaImpl::SetPressedBitmap( const wxBitmap& bitmap )
 128 {
 129     NSButton* button = GetNSButton();
 130     [button setAlternateImage: bitmap.GetNSImage()];
 131     if ( GetWXPeer()->IsKindOf(wxCLASSINFO(wxToggleButton)) )
 132     {
 133         [button setButtonType:NSToggleButton];
 134     }
 135     else
 136     {
 137         [button setButtonType:NSMomentaryChangeButton];
 138     }
 139 }
 140
 141 void wxButtonCocoaImpl::GetLayoutInset(int &left , int &top , int &right, int &bottom) const
 142 {
 143     left = top = right = bottom = 0;
 144     NSControlSize size = NSRegularControlSize;
 145     if ( [m_osxView respondsToSelector:@selector(controlSize)] )
 146         size = [m_osxView controlSize];
 147     else if ([m_osxView respondsToSelector:@selector(cell)])
 148     {
 149         id cell = [(id)m_osxView cell];
 150         if ([cell respondsToSelector:@selector(controlSize)])
 151             size = [cell controlSize];
 152     }
 153
 154     if ( [GetNSButton() bezelStyle] == NSRoundedBezelStyle )
 155     {
 156         switch( size )
 157         {
 158             case NSRegularControlSize:
 159                 left = right = 6;
 160                 top = 4;
 161                 bottom = 8;
 162                 break;
 163             case NSSmallControlSize:
 164                 left = right = 5;
 165                 top = 4;
 166                 bottom = 7;
 167                 break;
 168             case NSMiniControlSize:
 169                 left = right = 1;
 170                 top = 0;
 171                 bottom = 2;
 172                 break;
 173         }
 174     }
 175 }
 176
 177 void wxButtonCocoaImpl::SetAcceleratorFromLabel(const wxString& label)
 178 {
 179     const int accelPos = wxControl::FindAccelIndex(label);
 180     if ( accelPos != wxNOT_FOUND )
 181     {
 182         wxString accelstring(label[accelPos + 1]); // Skip '&' itself
 183         accelstring.MakeLower();
 184         wxCFStringRef cfText(accelstring);
 185         [GetNSButton() setKeyEquivalent:cfText.AsNSString()];
 186         [GetNSButton() setKeyEquivalentModifierMask:NSCommandKeyMask];
 187     }
 188     else
 189     {
 190         [GetNSButton() setKeyEquivalent:@""];
 191     }
 192 }
 193
 194 NSButton *wxButtonCocoaImpl::GetNSButton() const
 195 {
 196     wxASSERT( [m_osxView isKindOfClass:[NSButton class]] );
 197
 198     return static_cast<NSButton *>(m_osxView);
 199 }
 200
 201 // Set bezel style depending on the wxBORDER_XXX flags specified by the style
 202 // and also accounting for the label (bezels are different for multiline
 203 // buttons and normal ones) and the ID (special bezel is used for help button).
 204 //
 205 // This is extern because it's also used in src/osx/cocoa/tglbtn.mm.
 206 extern "C"
 207 void
 208 SetBezelStyleFromBorderFlags(NSButton *v,
 209                              long style,
 210                              wxWindowID winid,
 211                              const wxString& label = wxString(),
 212                              const wxBitmap& bitmap = wxBitmap())
 213 {
 214     // We can't display a custom label inside a button with help bezel style so
 215     // we only use it if we are using the default label. wxButton itself checks
 216     // if the label is just "Help" in which case it discards it and passes us
 217     // an empty string.
 218     if ( winid == wxID_HELP && label.empty() )
 219     {
 220         [v setBezelStyle:NSHelpButtonBezelStyle];
 221     }
 222     else
 223     {
 224         // We can't use rounded bezel styles neither for multiline buttons nor
 225         // for buttons containing (big) icons as they are only meant to be used
 226         // at certain sizes, so the style used depends on whether the label is
 227         // single or multi line.
 228         const bool
 229             isSimpleText = (label.find_first_of("\n\r") == wxString::npos)
 230                                 && (!bitmap.IsOk() || bitmap.GetHeight() < 20);
 231
 232         NSBezelStyle bezel;
 233         switch ( style & wxBORDER_MASK )
 234         {
 235             case wxBORDER_NONE:
 236                 bezel = NSShadowlessSquareBezelStyle;
 237                 [v setBordered:NO];
 238                 break;
 239
 240             case wxBORDER_SIMPLE:
 241                 bezel = NSShadowlessSquareBezelStyle;
 242                 break;
 243
 244             case wxBORDER_SUNKEN:
 245                 bezel = isSimpleText ? NSTexturedRoundedBezelStyle
 246                                      : NSSmallSquareBezelStyle;
 247                 break;
 248
 249             default:
 250                 wxFAIL_MSG( "Unknown border style" );
 251                 // fall through
 252
 253             case 0:
 254             case wxBORDER_STATIC:
 255             case wxBORDER_RAISED:
 256             case wxBORDER_THEME:
 257                 bezel = isSimpleText ? NSRoundedBezelStyle
 258                                      : NSRegularSquareBezelStyle;
 259                 break;
 260         }
 261
 262         [v setBezelStyle:bezel];
 263     }
 264 }
 265
 266 // Set the keyboard accelerator key from the label (e.g. "Click &Me")
 267 void wxButton::OSXUpdateAfterLabelChange(const wxString& label)
 268 {
 269     wxButtonCocoaImpl *impl = static_cast<wxButtonCocoaImpl*>(GetPeer());
 270
 271     // Update the bezel style as may be necessary if our new label is multi
 272     // line while the old one wasn't (or vice versa).
 273     SetBezelStyleFromBorderFlags(impl->GetNSButton(),
 274                                  GetWindowStyle(),
 275                                  GetId(),
 276                                  label);
 277
 278
 279     // Skip setting the accelerator for the default buttons as this would
 280     // overwrite the default "Enter" which should be preserved.
 281     wxTopLevelWindow * const
 282         tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
 283     if ( tlw )
 284     {
 285         if ( tlw->GetDefaultItem() == this )
 286             return;
 287     }
 288
 289     impl->SetAcceleratorFromLabel(label);
 290 }
 291
 292
 293 wxWidgetImplType* wxWidgetImpl::CreateButton( wxWindowMac* wxpeer,
 294                                     wxWindowMac* WXUNUSED(parent),
 295                                     wxWindowID winid,
 296                                     const wxString& label,
 297                                     const wxPoint& pos,
 298                                     const wxSize& size,
 299                                     long style,
 300                                     long WXUNUSED(extraStyle))
 301 {
 302     NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
 303     wxNSButton* v = [[wxNSButton alloc] initWithFrame:r];
 304
 305     SetBezelStyleFromBorderFlags(v, style, winid, label);
 306
 307     [v setButtonType:NSMomentaryPushInButton];
 308     wxButtonCocoaImpl* const impl = new wxButtonCocoaImpl( wxpeer, v );
 309     impl->SetAcceleratorFromLabel(label);
 310     return impl;
 311 }
 312
 313 void wxWidgetCocoaImpl::SetDefaultButton( bool isDefault )
 314 {
 315     if ( [m_osxView isKindOfClass:[NSButton class]] )
 316     {
 317         if ( isDefault )
 318         {
 319             [(NSButton*)m_osxView setKeyEquivalent: @"\r" ];
 320             [(NSButton*)m_osxView setKeyEquivalentModifierMask: 0];
 321         }
 322         else
 323             [(NSButton*)m_osxView setKeyEquivalent: @"" ];
 324     }
 325 }
 326
 327 void wxWidgetCocoaImpl::PerformClick()
 328 {
 329     if ([m_osxView isKindOfClass:[NSControl class]])
 330         [(NSControl*)m_osxView performClick:nil];
 331 }
 332
 333 #if wxUSE_BMPBUTTON
 334
 335 wxWidgetImplType* wxWidgetImpl::CreateBitmapButton( wxWindowMac* wxpeer,
 336                                                    wxWindowMac* WXUNUSED(parent),
 337                                                    wxWindowID winid,
 338                                                    const wxBitmap& bitmap,
 339                                                    const wxPoint& pos,
 340                                                    const wxSize& size,
 341                                                    long style,
 342                                                    long WXUNUSED(extraStyle))
 343 {
 344     NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
 345     wxNSButton* v = [[wxNSButton alloc] initWithFrame:r];
 346
 347     SetBezelStyleFromBorderFlags(v, style, winid, wxString(), bitmap);
 348
 349     if (bitmap.IsOk())
 350         [v setImage:bitmap.GetNSImage() ];
 351
 352     [v setButtonType:NSMomentaryPushInButton];
 353     wxWidgetCocoaImpl* c = new wxButtonCocoaImpl( wxpeer, v );
 354     return c;
 355 }
 356
 357 #endif // wxUSE_BMPBUTTON
 358
 359 //
 360 // wxDisclosureButton implementation
 361 //
 362
 363 @interface wxDisclosureNSButton : NSButton
 364 {
 365
 366     BOOL isOpen;
 367 }
 368
 369 - (void) updateImage;
 370
 371 - (void) toggle;
 372
 373 + (NSImage *)rotateImage: (NSImage *)image;
 374
 375 @end
 376
 377 static const char * disc_triangle_xpm[] = {
 378 "10 9 4 1",
 379 "   c None",
 380 ".  c #737373",
 381 "+  c #989898",
 382 "-  c #c6c6c6",
 383 " .-       ",
 384 " ..+-     ",
 385 " ....+    ",
 386 " ......-  ",
 387 " .......- ",
 388 " ......-  ",
 389 " ....+    ",
 390 " ..+-     ",
 391 " .-       ",
 392 };
 393
 394 @implementation wxDisclosureNSButton
 395
 396 + (void)initialize
 397 {
 398     static BOOL initialized = NO;
 399     if (!initialized)
 400     {
 401         initialized = YES;
 402         wxOSXCocoaClassAddWXMethods( self );
 403     }
 404 }
 405
 406 - (id) initWithFrame:(NSRect) frame
 407 {
 408     self = [super initWithFrame:frame];
 409     isOpen = NO;
 410     [self setImagePosition:NSImageLeft];
 411     [self updateImage];
 412     return self;
 413 }
 414
 415 - (int) intValue
 416 {
 417     return isOpen ? 1 : 0;
 418 }
 419
 420 - (void) setIntValue: (int) v
 421 {
 422     isOpen = ( v != 0 );
 423     [self updateImage];
 424 }
 425
 426 - (void) toggle
 427 {
 428     isOpen = !isOpen;
 429     [self updateImage];
 430 }
 431
 432 wxCFRef<NSImage*> downArray ;
 433
 434 - (void) updateImage
 435 {
 436     static wxBitmap trianglebm(disc_triangle_xpm);
 437     if ( downArray.get() == NULL )
 438     {
 439         downArray.reset( [[wxDisclosureNSButton rotateImage:trianglebm.GetNSImage()] retain] );
 440     }
 441
 442     if ( isOpen )
 443         [self setImage:(NSImage*)downArray.get()];
 444     else
 445         [self setImage:trianglebm.GetNSImage()];
 446 }
 447
 448 + (NSImage *)rotateImage: (NSImage *)image
 449 {
 450     NSSize imageSize = [image size];
 451     NSSize newImageSize = NSMakeSize(imageSize.height, imageSize.width);
 452     NSImage* newImage = [[NSImage alloc] initWithSize: newImageSize];
 453
 454     [newImage lockFocus];
 455
 456     NSAffineTransform* tm = [NSAffineTransform transform];
 457     [tm translateXBy:newImageSize.width/2 yBy:newImageSize.height/2];
 458     [tm rotateByDegrees:-90];
 459     [tm translateXBy:-newImageSize.width/2 yBy:-newImageSize.height/2];
 460     [tm concat];
 461
 462
 463     [image drawInRect:NSMakeRect(0,0,newImageSize.width, newImageSize.height)
 464         fromRect:NSZeroRect operation:NSCompositeCopy fraction:1.0];
 465
 466     [newImage unlockFocus];
 467     return [newImage autorelease];
 468 }
 469
 470 @end
 471
 472 class wxDisclosureTriangleCocoaImpl : public wxWidgetCocoaImpl
 473 {
 474 public :
 475     wxDisclosureTriangleCocoaImpl(wxWindowMac* peer , WXWidget w) :
 476         wxWidgetCocoaImpl(peer, w)
 477     {
 478     }
 479
 480     ~wxDisclosureTriangleCocoaImpl()
 481     {
 482     }
 483
 484     virtual void controlAction(WXWidget slf, void* _cmd, void *sender)
 485     {
 486         wxDisclosureNSButton* db = (wxDisclosureNSButton*)m_osxView;
 487         [db toggle];
 488         wxWidgetCocoaImpl::controlAction(slf, _cmd, sender );
 489     }
 490 };
 491
 492 wxWidgetImplType* wxWidgetImpl::CreateDisclosureTriangle( wxWindowMac* wxpeer,
 493                                     wxWindowMac* WXUNUSED(parent),
 494                                     wxWindowID winid,
 495                                     const wxString& label,
 496                                     const wxPoint& pos,
 497                                     const wxSize& size,
 498                                     long style,
 499                                     long WXUNUSED(extraStyle))
 500 {
 501     NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
 502     wxDisclosureNSButton* v = [[wxDisclosureNSButton alloc] initWithFrame:r];
 503     if ( !label.empty() )
 504         [v setTitle:wxCFStringRef(label).AsNSString()];
 505
 506     SetBezelStyleFromBorderFlags(v, style, winid, label);
 507
 508     return new wxDisclosureTriangleCocoaImpl( wxpeer, v );
 509 }