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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/cocoa/radiobut.mm
3 // Purpose: wxRadioButton
4 // Author: David Elliott
5 // Modified by:
6 // Created: 2003/03/16
7 // RCS-ID: $Id$
8 // Copyright: (c) 2003 David Elliott
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #include "wx/wxprec.h"
13
14 #if wxUSE_RADIOBTN
15
16 #include "wx/radiobut.h"
17
18 #ifndef WX_PRECOMP
19 #include "wx/log.h"
20 #include "wx/app.h"
21 #endif //WX_PRECOMP
22
23 #import <AppKit/NSButton.h>
24 #include "wx/cocoa/string.h"
25 #include "wx/cocoa/autorelease.h"
26
27 #include "wx/listimpl.cpp"
28
29 WX_DEFINE_LIST(wxRadioButtonList);
30
31 // wxRadioButtonBase == wxControl
32 BEGIN_EVENT_TABLE(wxRadioButton, wxControl)
33 END_EVENT_TABLE()
34 WX_IMPLEMENT_COCOA_OWNER(wxRadioButton,NSButton,NSControl,NSView)
35
36 bool wxRadioButton::Create(wxWindow *parent, wxWindowID winid,
37 const wxString& label,
38 const wxPoint& pos,
39 const wxSize& size,
40 long style,
41 const wxValidator& validator,
42 const wxString& name)
43 {
44 wxAutoNSAutoreleasePool pool;
45 m_radioMaster = NULL;
46 if(!CreateControl(parent,winid,pos,size,style,validator,name))
47 return false;
48 if(style&wxRB_GROUP)
49 {
50 m_radioMaster = this;
51 m_radioSlaves.Append(this);
52 }
53 else if(style&wxRB_SINGLE)
54 m_radioMaster = NULL;
55 else
56 {
57 for(wxWindowList::compatibility_iterator siblingNode= GetParent()->GetChildren().GetLast();
58 siblingNode;
59 siblingNode = siblingNode->GetPrevious())
60 {
61 wxRadioButton *radioButton = wxDynamicCast(siblingNode->GetData(),wxRadioButton);
62 if(radioButton && radioButton!=this)
63 {
64 m_radioMaster = radioButton->m_radioMaster;
65 wxASSERT_MSG(m_radioMaster,
66 wxT("Previous radio button should be part of a group"));
67 // Don't crash, assume user meant wxRB_SINGLE
68 if(m_radioMaster)
69 m_radioMaster->m_radioSlaves.Append(this);
70 break;
71 }
72 }
73 }
74
75 m_cocoaNSView = NULL;
76 SetNSButton([[NSButton alloc] initWithFrame: MakeDefaultNSRect(size)]);
77 [m_cocoaNSView release];
78 [GetNSButton() setButtonType: NSRadioButton];
79 CocoaSetLabelForObject(label, GetNSButton());
80 // If it's the first in a group, it should be selected
81 if(style&wxRB_GROUP)
82 [GetNSButton() setState: NSOnState];
83 [GetNSControl() sizeToFit];
84
85 if(m_parent)
86 m_parent->CocoaAddChild(this);
87 SetInitialFrameRect(pos,size);
88
89 return true;
90 }
91
92 wxRadioButton::~wxRadioButton()
93 {
94 if(m_radioMaster==this)
95 {
96 // First get rid of ourselves (we should ALWAYS be at the head)
97 wxRadioButtonList::compatibility_iterator slaveNode =
98 m_radioSlaves.GetFirst();
99 wxASSERT(slaveNode);
100 wxASSERT(slaveNode->GetData() == this);
101 m_radioSlaves.Erase(slaveNode);
102
103 // Now find the new master
104 wxRadioButton *newMaster = NULL;
105 slaveNode = m_radioSlaves.GetFirst();
106 if(slaveNode)
107 newMaster = slaveNode->GetData();
108
109 // For each node (including the new master) set the master, remove
110 // it from this list, and add it to the new master's list
111 for(; slaveNode; slaveNode = m_radioSlaves.GetFirst())
112 {
113 wxRadioButton *radioButton = slaveNode->GetData();
114 wxASSERT(radioButton->m_radioMaster == this);
115 radioButton->m_radioMaster = newMaster;
116 newMaster->m_radioSlaves.Append(radioButton);
117 m_radioSlaves.Erase(slaveNode);
118 }
119 }
120 else if(m_radioMaster)
121 {
122 m_radioMaster->m_radioSlaves.DeleteObject(this);
123 m_radioMaster = NULL;
124 }
125 // normal stuff
126 DisassociateNSButton(GetNSButton());
127 }
128
129 void wxRadioButton::SetValue(bool value)
130 {
131 if(value)
132 {
133 [GetNSButton() setState: NSOnState];
134 Cocoa_DeselectOtherButtonsInTheGroup();
135 }
136 else
137 [GetNSButton() setState: NSOffState];
138 }
139
140 bool wxRadioButton::GetValue() const
141 {
142 int state = [GetNSButton() state];
143 wxASSERT(state!=NSMixedState);
144 return state==NSOnState;
145 }
146
147 void wxRadioButton::SetLabel(const wxString& label)
148 {
149 wxAutoNSAutoreleasePool pool;
150 CocoaSetLabelForObject(label, GetNSButton());
151 }
152
153 wxString wxRadioButton::GetLabel() const
154 {
155 return wxStringWithNSString([GetNSButton() title]);
156 }
157
158 /**
159 * If this radio button is part of a group, this method turns off every other
160 * button in the group. If this radio button is not part of a group, this
161 * method does absolutely nothing.
162 */
163 void wxRadioButton::Cocoa_DeselectOtherButtonsInTheGroup(void)
164 {
165 if(m_radioMaster)
166 {
167 for(wxRadioButtonList::compatibility_iterator slaveNode =
168 m_radioMaster->m_radioSlaves.GetFirst();
169 slaveNode; slaveNode = slaveNode->GetNext())
170 {
171 wxRadioButton *radioButton = slaveNode->GetData();
172 if(radioButton!=this)
173 radioButton->SetValue(false);
174 }
175 }
176 }
177
178 void wxRadioButton::Cocoa_wxNSButtonAction(void)
179 {
180 wxLogTrace(wxTRACE_COCOA,wxT("wxRadioButton"));
181 if([GetNSButton() state] == NSOnState)
182 {
183 Cocoa_DeselectOtherButtonsInTheGroup();
184 }
185 wxCommandEvent event(wxEVT_COMMAND_RADIOBUTTON_SELECTED, GetId());
186 InitCommandEvent(event); // event.SetEventObject(this);
187 event.SetInt(GetValue());
188 Command(event);
189 }
190
191 #endif