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