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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/cocoa/radiobox.mm
3 // Purpose: wxRadioBox
4 // Author: David Elliott
5 // Modified by:
6 // Created: 2003/02/15
7 // Copyright: (c) 2003 David Elliott
8 // (c) 2007 Software 2000 Ltd.
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #include "wx/wxprec.h"
13
14 #if wxUSE_RADIOBOX
15
16 #include "wx/radiobox.h"
17
18 #ifndef WX_PRECOMP
19 #include "wx/app.h"
20 #include "wx/arrstr.h"
21 #endif //WX_PRECOMP
22
23 #include "wx/cocoa/string.h"
24 #include "wx/cocoa/autorelease.h"
25
26 #import <Foundation/NSArray.h>
27 #include "wx/cocoa/objc/NSView.h"
28 #import <AppKit/NSButton.h>
29 #import <AppKit/NSBox.h>
30 #import <AppKit/NSMatrix.h>
31
32 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox, wxControl)
33 BEGIN_EVENT_TABLE(wxRadioBox, wxControl)
34 END_EVENT_TABLE()
35
36 void wxRadioBox::AssociateNSBox(WX_NSBox cocoaObjcClass)
37 {
38 NSMatrix *radioBox = [(WX_NSBox)cocoaObjcClass contentView];
39 // Associate the NSMatrix (the NSBox's contentView) with the wxCocoaNSControl MI base class.
40 AssociateNSControl(radioBox);
41 // Set the target/action.. we don't really need to unset these
42 [radioBox setTarget:wxCocoaNSControl::sm_cocoaTarget];
43 [radioBox setAction:@selector(wxNSControlAction:)];
44 }
45
46 void wxRadioBox::DisassociateNSBox(WX_NSBox cocoaObjcClass)
47 {
48 DisassociateNSControl([(WX_NSBox)cocoaObjcClass contentView]);
49 }
50
51 WX_IMPLEMENT_COCOA_OWNER(wxRadioBox,NSBox,NSView,NSView)
52
53 bool wxRadioBox::Create(wxWindow *parent, wxWindowID winid,
54 const wxString& title,
55 const wxPoint& pos,
56 const wxSize& size,
57 const wxArrayString& choices,
58 int majorDim,
59 long style, const wxValidator& validator,
60 const wxString& name)
61 {
62 wxCArrayString chs(choices);
63
64 return Create(parent, winid, title, pos, size, chs.GetCount(),
65 chs.GetStrings(), majorDim, style, validator, name);
66 }
67
68 bool wxRadioBox::Create(wxWindow *parent, wxWindowID winid,
69 const wxString& title,
70 const wxPoint& pos,
71 const wxSize& size,
72 int n, const wxString choices[],
73 int majorDim,
74 long style, const wxValidator& validator,
75 const wxString& name)
76 {
77 // We autorelease heavily so we want our own pool
78 wxAutoNSAutoreleasePool pool;
79
80 if(!CreateControl(parent,winid,pos,size,style,validator,name))
81 return false;
82
83 majorDim = majorDim == 0 ? n : majorDim;
84 // TODO: Don't forget to call SetMajorDim
85 // We can't yet as we can't implement GetCount() until after
86 // we make the NSMatrix.
87 int minorDim = (n + majorDim - 1) / majorDim;
88
89
90 // Create a prototype cell for use with the NSMatrix build
91 NSCell *currCell = [[NSButtonCell alloc] initTextCell:@""];
92 [(NSButtonCell*)currCell setButtonType:NSRadioButton];
93
94 // Build up an array of all cells plus any extra empty cells
95 NSMutableArray *allCells = [NSMutableArray arrayWithCapacity:n];
96 for(int i=0; i<n; ++i)
97 {
98 CocoaSetLabelForObject(choices[i], currCell);
99 [allCells addObject: currCell];
100 [currCell release];
101 // NOTE: We can still safely message currCell as the array has retained it.
102 currCell = [currCell copy];
103 }
104 [currCell release];
105
106 // NOTE: Although an image cell with no image is documented to return NSZeroSize from
107 // the cellSize method, the documentation is WRONG. It will actually return a huge size
108 // (thousands) which makes every cell in the matrix that big. Not good.
109 // Be safe and initialize a text cell with an empty string. That always works.
110 currCell = [[NSCell alloc] initTextCell:@""];
111 [currCell setEnabled:NO]; // Don't allow user to select this cell
112 for(int i=n; i < majorDim * minorDim; ++i)
113 {
114 [allCells addObject: currCell];
115 // NOTE: Use the same instance.. this should work and save some heap allocations.
116 #if 0
117 [currCell release];
118 currCell = [currCell copy];
119 #endif
120 }
121 [currCell release];
122 currCell = NULL;
123
124 // Although the documentation on addColumnWithCells:/addRowWithCells: explicitly
125 // states that it will determine the initial dimension upon the first call if
126 // the initial size is 0x0 it LIES. It will fail an assertion in the code
127 // if you use the simpler initWithFrame: initializer.
128 // Therefore, we specify the major dimension and leave the minor dimension as 0
129 // so that we can add the rows/columns without failing the assertion.
130 NSMatrix* radioBox = [[NSMatrix alloc]
131 initWithFrame:NSZeroRect
132 mode:NSRadioModeMatrix
133 cellClass:nil
134 numberOfRows:style&wxRA_SPECIFY_COLS?0:majorDim
135 numberOfColumns:style&wxRA_SPECIFY_COLS?majorDim:0
136 ];
137
138 SEL addMajorWithCellsSelector;
139 // If column count is the major dimension then we add by row
140 if( style & wxRA_SPECIFY_COLS )
141 addMajorWithCellsSelector = @selector(addRowWithCells:);
142 // If row count is the major dimension then we add by column
143 else
144 addMajorWithCellsSelector = @selector(addColumnWithCells:);
145
146 for(int i=0; i<minorDim; ++i)
147 {
148 [radioBox
149 performSelector:addMajorWithCellsSelector
150 withObject:[allCells subarrayWithRange:NSMakeRange(i*majorDim, majorDim)]];
151 }
152
153 NSBox *theBox = [[NSBox alloc] initWithFrame:MakeDefaultNSRect(size)];
154
155 // Replace the box's content view with the NSMatrix we just created
156 // IMPORTANT: This must be done before calling SetNSBox.
157 [theBox setContentView:radioBox];
158 [radioBox release]; // The NSBox retains it for us.
159
160 SetNSBox(theBox);
161 [theBox release];
162
163
164 CocoaSetLabelForObject(title, GetNSBox());
165 // [GetNSBox() setBorderType:NSLineBorder]; // why??
166
167 SetMajorDim(majorDim, style);
168
169 // Set the selection to the first item if we have any items.
170 // This is for parity with other wx ports which do the same thing.
171 if(n > 0)
172 SetSelection(0);
173
174 if(m_parent)
175 m_parent->CocoaAddChild(this);
176
177 // Do the sizer dance
178 [GetNSBox() sizeToFit];
179 SetInitialFrameRect(pos, size);
180
181 return true;
182 }
183
184 wxRadioBox::~wxRadioBox()
185 {
186 DisassociateNSBox(GetNSBox());
187 }
188
189 WX_NSMatrix wxRadioBox::GetNSMatrix() const
190 {
191 return (NSMatrix*)[(NSBox*)m_cocoaNSView contentView];
192 }
193
194 // selection
195 void wxRadioBox::SetSelection(int n)
196 {
197 int r = GetRowForIndex(n);
198 int c = GetColumnForIndex(n);
199 [GetNSMatrix() selectCellAtRow:r column:c];
200 }
201
202 int wxRadioBox::GetSelection() const
203 {
204 NSMatrix *radioBox = GetNSMatrix();
205 NSInteger r = [radioBox selectedRow];
206 NSInteger c = [radioBox selectedColumn];
207 if(m_windowStyle & wxRA_SPECIFY_COLS)
208 return r * GetMajorDim() + c;
209 else
210 return c * GetMajorDim() + r;
211 }
212
213 // string access
214 unsigned int wxRadioBox::GetCount() const
215 {
216 NSMatrix *radioBox = GetNSMatrix();
217 NSInteger rowCount, columnCount;
218 [radioBox getNumberOfRows:&rowCount columns:&columnCount];
219
220 // FIXME: This is wrong if padding cells were made
221 return rowCount * columnCount;
222 }
223
224 wxString wxRadioBox::GetString(unsigned int n) const
225 {
226 int r = GetRowForIndex(n);
227 int c = GetColumnForIndex(n);
228 // FIXME: Cocoa stores the mnemonic-stripped title.
229 return wxStringWithNSString([[GetNSMatrix() cellAtRow:r column:c] title]);
230 }
231
232 void wxRadioBox::SetString(unsigned int n, const wxString& label)
233 {
234 int r = GetRowForIndex(n);
235 int c = GetColumnForIndex(n);
236 CocoaSetLabelForObject(label, [GetNSMatrix() cellAtRow:r column:c]);
237 }
238
239 // change the individual radio button state
240 bool wxRadioBox::Enable(unsigned int n, bool enable)
241 {
242 int r = GetRowForIndex(n);
243 int c = GetColumnForIndex(n);
244 NSCell *cell = [GetNSMatrix() cellAtRow:r column:c];
245 if(cell == nil)
246 return false;
247 bool wasEnabled = [cell isEnabled];
248 [cell setEnabled:enable];
249 return (wasEnabled && !enable) || (!wasEnabled && enable);
250 }
251
252 bool wxRadioBox::Show(unsigned int n, bool show)
253 {
254 // TODO
255 // NOTE: Cocoa has no visible state for cells so we'd need to replace the
256 // cell with a dummy one to hide it or alternatively subclass NSButtonCell
257 // and add the behaviour.
258 return false;
259 }
260
261 wxSize wxRadioBox::DoGetBestSize() const
262 {
263 // The NSBox responds to sizeToFit by sending sizeToFit to its contentView
264 // which is the NSMatrix and does the right thing.
265 return wxControl::DoGetBestSize();
266 }
267
268 void wxRadioBox::CocoaTarget_action(void)
269 {
270 wxCommandEvent event(wxEVT_RADIOBOX, GetId());
271 InitCommandEvent(event);
272 event.SetInt(GetSelection()); // i.e. SetSelection.
273 Command(event);
274 }
275
276 #endif