src/cocoa/checkbox.mm

   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
  28 BEGIN_EVENT_TABLE(wxCheckBox, wxCheckBoxBase)
  29 END_EVENT_TABLE()
  30 WX_IMPLEMENT_COCOA_OWNER(wxCheckBox,NSButton,NSControl,NSView)
  31
  32 bool 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
  58 wxCheckBox::~wxCheckBox()
  59 {
  60     DisassociateNSButton(GetNSButton());
  61 }
  62
  63 void wxCheckBox::SetValue(bool value)
  64 {
  65     [GetNSButton() setState: value?NSOnState:NSOffState];
  66 }
  67
  68 void 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
  91 bool 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
  99 wxCheckBoxState 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
 116 void 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
 138 void wxCheckBox::SetLabel(const wxString& s)
 139 {
 140     wxAutoNSAutoreleasePool pool;
 141     CocoaSetLabelForObject(s, GetNSButton());
 142 }
 143
 144 wxString wxCheckBox::GetLabel() const
 145 {
 146     wxAutoNSAutoreleasePool pool;
 147     return wxStringWithNSString([GetNSButton() title]);
 148
 149 }
 150
 151 #endif // wxUSE_CHECKBOX