src/cocoa/checkbox.mm

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