1/////////////////////////////////////////////////////////////////////////////
2// Name:        src/cocoa/checkbox.mm
3// Purpose:     wxCheckBox
4// Author:      David Elliott
5// Modified by:
6// Created:     2003/03/16
7// Copyright:   (c) 2003 David Elliott
8// Licence:     wxWindows licence
9/////////////////////////////////////////////////////////////////////////////
10
11#include "wx/wxprec.h"
12
13#if wxUSE_CHECKBOX
14
15#include "wx/checkbox.h"
16
17#ifndef WX_PRECOMP
18    #include "wx/log.h"
19    #include "wx/app.h"
20#endif //WX_PRECOMP
21
22#include "wx/cocoa/autorelease.h"
23#include "wx/cocoa/string.h"
24
25#import <AppKit/NSButton.h>
26#import <Foundation/NSString.h>
27
28BEGIN_EVENT_TABLE(wxCheckBox, wxCheckBoxBase)
29END_EVENT_TABLE()
30WX_IMPLEMENT_COCOA_OWNER(wxCheckBox,NSButton,NSControl,NSView)
31
32bool wxCheckBox::Create(wxWindow *parent, wxWindowID winid,
33           const wxString& label,
34           const wxPoint& pos,
35           const wxSize& size,
36           long style,
37           const wxValidator& validator,
38           const wxString& name)
39{
40    wxAutoNSAutoreleasePool pool;
41    if(!CreateControl(parent,winid,pos,size,style,validator,name))
42        return false;
43    m_cocoaNSView = NULL;
44    SetNSButton([[NSButton alloc] initWithFrame: MakeDefaultNSRect(size)]);
45    [m_cocoaNSView release];
46    [GetNSButton() setButtonType: NSSwitchButton];
47    [GetNSButton() setAllowsMixedState: Is3State()];
48    CocoaSetLabelForObject(label, GetNSButton());
49    [GetNSControl() sizeToFit];
50
51    if(m_parent)
52        m_parent->CocoaAddChild(this);
53    SetInitialFrameRect(pos,size);
54
55    return true;
56}
57
58wxCheckBox::~wxCheckBox()
59{
60    DisassociateNSButton(GetNSButton());
61}
62
63void wxCheckBox::SetValue(bool value)
64{
65    [GetNSButton() setState: value?NSOnState:NSOffState];
66}
67
68void wxCheckBox::DoSet3StateValue(wxCheckBoxState state)
69{
70    int cocoaState;
71    switch(state)
72    {
73    case wxCHK_UNCHECKED:
74        cocoaState = NSOffState;
75        break;
76    case wxCHK_CHECKED:
77        cocoaState = NSOnState;
78        break;
79    case wxCHK_UNDETERMINED:
80        // Base class would have already set state to wxCHK_UNCHECKED
81//        wxASSERT_MSG(Is3State(),"Use the wxCHK_3STATE style flag");
82        cocoaState = NSMixedState;
83        break;
84    default:
85        wxFAIL_MSG(wxT("Invalid state in wxCheckBox::DoSet3StateValue"));
86        return;
87    }
88    [GetNSButton() setState:cocoaState];
89}
90
91bool wxCheckBox::GetValue() const
92{
93    int state = [GetNSButton() state];
94    wxASSERT_MSG(state!=NSMixedState || Is3State(),
95        wxT("NSMixedState returned from a 2-state checkbox"));
96    return state!=NSOffState;
97}
98
99wxCheckBoxState wxCheckBox::DoGet3StateValue() const
100{
101    switch([GetNSButton() state])
102    {
103    case NSOffState:
104        return wxCHK_UNCHECKED;
105    case NSOnState:
106        return wxCHK_CHECKED;
107    default:
108        wxFAIL_MSG(wxT("[NSButton -state] returned an invalid state!"));
109    case NSMixedState:
110        // Base class handles this assertion for us
111//        wxASSERT_MSG(Is3State(),wxT("NSMixedState returned from a 2-state checkbox"));
112        return wxCHK_UNDETERMINED;
113    }
114}
115
116void wxCheckBox::Cocoa_wxNSButtonAction(void)
117{
118    wxLogTrace(wxTRACE_COCOA,wxT("Checkbox"));
119    // What we really want to do is override [NSCell -nextState] to return
120    // NSOnState in lieu of NSMixedState but this works (aside from the
121    // very slightly noticeable drawing of - and then a check) -DE
122
123    // Cocoa always allows a 3-state button to transition into
124    // the mixed/undetermined state by clicking, we don't
125    if ( !Is3rdStateAllowedForUser()
126         && [GetNSButton() state] == NSMixedState )
127    {
128        // Cocoa's sequence is on/off/mixed
129        // skip mixed, go right back to on
130        [GetNSButton() setState: NSOnState];
131    }
132    wxCommandEvent event(wxEVT_CHECKBOX, GetId());
133    InitCommandEvent(event); //    event.SetEventObject(this);
134    event.SetInt(Get3StateValue());
135    Command(event);
136}
137
138void wxCheckBox::SetLabel(const wxString& s)
139{
140    wxAutoNSAutoreleasePool pool;
141    CocoaSetLabelForObject(s, GetNSButton());
142}
143
144wxString wxCheckBox::GetLabel() const
145{
146    wxAutoNSAutoreleasePool pool;
147    return wxStringWithNSString([GetNSButton() title]);
148
149}
150
151#endif // wxUSE_CHECKBOX
152