src/cocoa/radiobut.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13 #ifndef WX_PRECOMP
  14     #include "wx/log.h"
  15     #include "wx/app.h"
  16     #include "wx/radiobut.h"
  17 #endif //WX_PRECOMP
  18
  19 #import <AppKit/NSButton.h>
  20 #include "wx/cocoa/string.h"
  21 #include "wx/cocoa/autorelease.h"
  22
  23 #include "wx/listimpl.cpp"
  24
  25 WX_DEFINE_LIST(wxRadioButtonList);
  26
  27 IMPLEMENT_DYNAMIC_CLASS(wxRadioButton, wxControl)
  28 // wxRadioButtonBase == wxControl
  29 BEGIN_EVENT_TABLE(wxRadioButton, wxControl)
  30 END_EVENT_TABLE()
  31 WX_IMPLEMENT_COCOA_OWNER(wxRadioButton,NSButton,NSControl,NSView)
  32
  33 bool wxRadioButton::Create(wxWindow *parent, wxWindowID winid,
  34            const wxString& label,
  35            const wxPoint& pos,
  36            const wxSize& size,
  37            long style,
  38            const wxValidator& validator,
  39            const wxString& name)
  40 {
  41     wxAutoNSAutoreleasePool pool;
  42     m_radioMaster = NULL;
  43     if(!CreateControl(parent,winid,pos,size,style,validator,name))
  44         return false;
  45     if(style&wxRB_GROUP)
  46     {
  47         m_radioMaster = this;
  48         m_radioSlaves.Append(this);
  49     }
  50     else if(style&wxRB_SINGLE)
  51         m_radioMaster = NULL;
  52     else
  53     {
  54         for(wxWindowList::compatibility_iterator siblingNode= GetParent()->GetChildren().GetLast();
  55             siblingNode;
  56             siblingNode = siblingNode->GetPrevious())
  57         {
  58             wxRadioButton *radioButton  = wxDynamicCast(siblingNode->GetData(),wxRadioButton);
  59             if(radioButton && radioButton!=this)
  60             {
  61                 m_radioMaster = radioButton->m_radioMaster;
  62                 wxASSERT_MSG(m_radioMaster,
  63                     wxT("Previous radio button should be part of a group"));
  64                 // Don't crash, assume user meant wxRB_SINGLE
  65                 if(m_radioMaster)
  66                     m_radioMaster->m_radioSlaves.Append(this);
  67                 break;
  68             }
  69         }
  70     }
  71
  72     m_cocoaNSView = NULL;
  73     SetNSButton([[NSButton alloc] initWithFrame: MakeDefaultNSRect(size)]);
  74     [m_cocoaNSView release];
  75     [GetNSButton() setButtonType: NSRadioButton];
  76     [GetNSButton() setTitle:wxNSStringWithWxString(label)];
  77     // If it's the first in a group, it should be selected
  78     if(style&wxRB_GROUP)
  79         [GetNSButton() setState: NSOnState];
  80     [GetNSControl() sizeToFit];
  81
  82     if(m_parent)
  83         m_parent->CocoaAddChild(this);
  84     SetInitialFrameRect(pos,size);
  85
  86     return true;
  87 }
  88
  89 wxRadioButton::~wxRadioButton()
  90 {
  91     if(m_radioMaster==this)
  92     {
  93         // First get rid of ourselves (we should ALWAYS be at the head)
  94         wxRadioButtonList::compatibility_iterator slaveNode =
  95             m_radioSlaves.GetFirst();
  96         wxASSERT(slaveNode);
  97         wxASSERT(slaveNode->GetData() == this);
  98         m_radioSlaves.DeleteNode(slaveNode);
  99
 100         // Now find the new master
 101         wxRadioButton *newMaster = NULL;
 102         slaveNode = m_radioSlaves.GetFirst();
 103         if(slaveNode)
 104             newMaster = slaveNode->GetData();
 105
 106         // For each node (including the new master) set the master, remove
 107         // it from this list, and add it to the new master's list
 108         for(; slaveNode; slaveNode = m_radioSlaves.GetFirst())
 109         {
 110             wxRadioButton *radioButton = slaveNode->GetData();
 111             wxASSERT(radioButton->m_radioMaster == this);
 112             radioButton->m_radioMaster = newMaster;
 113             newMaster->m_radioSlaves.Append(radioButton);
 114             m_radioSlaves.DeleteNode(slaveNode);
 115         }
 116     }
 117     else if(m_radioMaster)
 118     {
 119         m_radioMaster->m_radioSlaves.DeleteObject(this);
 120         m_radioMaster = NULL;
 121     }
 122     // normal stuff
 123     DisassociateNSButton(GetNSButton());
 124 }
 125
 126 void wxRadioButton::SetValue(bool value)
 127 {
 128     if(value)
 129         [GetNSButton() setState: NSOnState];
 130     else
 131         [GetNSButton() setState: NSOffState];
 132 }
 133
 134 bool wxRadioButton::GetValue() const
 135 {
 136     int state = [GetNSButton() state];
 137     wxASSERT(state!=NSMixedState);
 138     return state==NSOnState;
 139 }
 140
 141 void wxRadioButton::Cocoa_wxNSButtonAction(void)
 142 {
 143     wxLogTrace(wxTRACE_COCOA,wxT("wxRadioButton"));
 144     if(m_radioMaster && ([GetNSButton() state] == NSOnState))
 145     {
 146         for(wxRadioButtonList::compatibility_iterator slaveNode =
 147                 m_radioMaster->m_radioSlaves.GetFirst();
 148             slaveNode; slaveNode = slaveNode->GetNext())
 149         {
 150             wxRadioButton *radioButton = slaveNode->GetData();
 151             if(radioButton!=this)
 152                 radioButton->SetValue(false);
 153         }
 154     }
 155     wxCommandEvent event(wxEVT_COMMAND_RADIOBUTTON_SELECTED, GetId());
 156     InitCommandEvent(event); //    event.SetEventObject(this);
 157     event.SetInt(GetValue());
 158     Command(event);
 159 }
 160