Return NULL from wxWindow::GetCapture() when the capture is being lost.

[wxWidgets.git] / src / cocoa / radiobut.mm

diff --git a/src/cocoa/radiobut.mm b/src/cocoa/radiobut.mm
index d486f62aded0866133275e489cbe0c125fbbe01d..523b6acb4182a4f3db6b1efa2bf401ac9fa2f732 100644 (file)
--- a/src/cocoa/radiobut.mm
+++ b/src/cocoa/radiobut.mm
@@ -1,23 +1,32 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        cocoa/radiobut.mm
+// Name:        src/cocoa/radiobut.mm
 // Purpose:     wxRadioButton
 // Author:      David Elliott
 // Modified by:
 // Created:     2003/03/16
-// RCS-ID:      $Id: 
 // Copyright:   (c) 2003 David Elliott
-// Licence:    wxWindows license
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#include "wx/app.h"
+#include "wx/wxprec.h"
+
+#if wxUSE_RADIOBTN
+
 #include "wx/radiobut.h"
-#include "wx/log.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/log.h"
+    #include "wx/app.h"
+#endif //WX_PRECOMP
 
 #import <AppKit/NSButton.h>
 #include "wx/cocoa/string.h"
 #include "wx/cocoa/autorelease.h"
 
-IMPLEMENT_DYNAMIC_CLASS(wxRadioButton, wxControl)
+#include "wx/listimpl.cpp"
+
+WX_DEFINE_LIST(wxRadioButtonList);
+
 // wxRadioButtonBase == wxControl
 BEGIN_EVENT_TABLE(wxRadioButton, wxControl)
 END_EVENT_TABLE()
@@ -32,37 +41,150 @@ bool wxRadioButton::Create(wxWindow *parent, wxWindowID winid,
            const wxString& name)
 {
     wxAutoNSAutoreleasePool pool;
+    m_radioMaster = NULL;
     if(!CreateControl(parent,winid,pos,size,style,validator,name))
         return false;
+    if(style&wxRB_GROUP)
+    {
+        m_radioMaster = this;
+        m_radioSlaves.Append(this);
+    }
+    else if(style&wxRB_SINGLE)
+        m_radioMaster = NULL;
+    else
+    {
+        for(wxWindowList::compatibility_iterator siblingNode= GetParent()->GetChildren().GetLast();
+            siblingNode;
+            siblingNode = siblingNode->GetPrevious())
+        {
+            wxRadioButton *radioButton  = wxDynamicCast(siblingNode->GetData(),wxRadioButton);
+            if(radioButton && radioButton!=this)
+            {
+                m_radioMaster = radioButton->m_radioMaster;
+                wxASSERT_MSG(m_radioMaster,
+                    wxT("Previous radio button should be part of a group"));
+                // Don't crash, assume user meant wxRB_SINGLE
+                if(m_radioMaster)
+                    m_radioMaster->m_radioSlaves.Append(this);
+                break;
+            }
+        }
+    }
+
     m_cocoaNSView = NULL;
-    NSRect cocoaRect = NSMakeRect(10,10,20,20);
-    SetNSButton([[NSButton alloc] initWithFrame: cocoaRect]);
+    SetNSButton([[NSButton alloc] initWithFrame: MakeDefaultNSRect(size)]);
     [m_cocoaNSView release];
     [GetNSButton() setButtonType: NSRadioButton];
-    [GetNSButton() setTitle:wxNSStringWithWxString(label)];
+    CocoaSetLabelForObject(label, GetNSButton());
+    // If it's the first in a group, it should be selected
+    if(style&wxRB_GROUP)
+        [GetNSButton() setState: NSOnState];
     [GetNSControl() sizeToFit];
 
     if(m_parent)
         m_parent->CocoaAddChild(this);
+    SetInitialFrameRect(pos,size);
+
     return true;
 }
 
 wxRadioButton::~wxRadioButton()
 {
-    DisassociateNSButton(m_cocoaNSView);
+    if(m_radioMaster==this)
+    {
+        // First get rid of ourselves (we should ALWAYS be at the head)
+        wxRadioButtonList::compatibility_iterator slaveNode =
+            m_radioSlaves.GetFirst();
+        wxASSERT(slaveNode);
+        wxASSERT(slaveNode->GetData() == this);
+        m_radioSlaves.Erase(slaveNode);
+
+        // Now find the new master
+        wxRadioButton *newMaster = NULL;
+        slaveNode = m_radioSlaves.GetFirst();
+        if(slaveNode)
+            newMaster = slaveNode->GetData();
+
+        // For each node (including the new master) set the master, remove
+        // it from this list, and add it to the new master's list
+        for(; slaveNode; slaveNode = m_radioSlaves.GetFirst())
+        {
+            wxRadioButton *radioButton = slaveNode->GetData();
+            wxASSERT(radioButton->m_radioMaster == this);
+            radioButton->m_radioMaster = newMaster;
+            newMaster->m_radioSlaves.Append(radioButton);
+            m_radioSlaves.Erase(slaveNode);
+        }
+    }
+    else if(m_radioMaster)
+    {
+        m_radioMaster->m_radioSlaves.DeleteObject(this);
+        m_radioMaster = NULL;
+    }
+    // normal stuff
+    DisassociateNSButton(GetNSButton());
 }
 
-void wxRadioButton::SetValue(bool)
+void wxRadioButton::SetValue(bool value)
 {
+    if(value)
+    {
+        [GetNSButton() setState: NSOnState];
+        Cocoa_DeselectOtherButtonsInTheGroup();
+    }
+    else
+        [GetNSButton() setState: NSOffState];
 }
 
 bool wxRadioButton::GetValue() const
 {
-    return false;
+    int state = [GetNSButton() state];
+    wxASSERT(state!=NSMixedState);
+    return state==NSOnState;
+}
+
+void wxRadioButton::SetLabel(const wxString& label)
+{
+    wxAutoNSAutoreleasePool pool;
+    CocoaSetLabelForObject(label, GetNSButton());
+}
+
+wxString wxRadioButton::GetLabel() const 
+{    
+    return wxStringWithNSString([GetNSButton() title]);
+}
+
+/**
+ * If this radio button is part of a group, this method turns off every other
+ * button in the group.  If this radio button is not part of a group, this
+ * method does absolutely nothing.
+ */
+void wxRadioButton::Cocoa_DeselectOtherButtonsInTheGroup(void)
+{
+    if(m_radioMaster)
+    {
+        for(wxRadioButtonList::compatibility_iterator slaveNode =
+                m_radioMaster->m_radioSlaves.GetFirst();
+            slaveNode; slaveNode = slaveNode->GetNext())
+        {
+            wxRadioButton *radioButton = slaveNode->GetData();
+            if(radioButton!=this)
+                radioButton->SetValue(false);
+        }
+    }
 }
 
 void wxRadioButton::Cocoa_wxNSButtonAction(void)
 {
-    wxLogDebug("wxRadioButton");
+    wxLogTrace(wxTRACE_COCOA,wxT("wxRadioButton"));
+    if([GetNSButton() state] == NSOnState)
+    {
+        Cocoa_DeselectOtherButtonsInTheGroup();
+    }
+    wxCommandEvent event(wxEVT_RADIOBUTTON, GetId());
+    InitCommandEvent(event); //    event.SetEventObject(this);
+    event.SetInt(GetValue());
+    Command(event);
 }
 
+#endif