Don't use focus if NULL

[wxWidgets.git] / src / mac / carbon / button.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        button.cpp
// Purpose:     wxButton
// Author:      Stefan Csomor
// Modified by:
// Created:     1998-01-01
// RCS-ID:      $Id$
// Copyright:   (c) Stefan Csomor
// Licence:       wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation "button.h"
#endif

#include "wx/defs.h"

#include "wx/button.h"
#include "wx/panel.h"

#if !USE_SHARED_LIBRARY
IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl)
#endif

#include "wx/mac/uma.h"
// Button

static const int kMacOSXHorizontalBorder = 1 ;
static const int kMacOSXVerticalBorder = 1 ;

bool wxButton::Create(wxWindow *parent, wxWindowID id, const wxString& label,
           const wxPoint& pos,
           const wxSize& size, long style,
           const wxValidator& validator,
           const wxString& name)
{
    Rect bounds ;
    Str255 title ;

    if ( UMAHasAquaLayout() )
    {
        m_macHorizontalBorder = kMacOSXHorizontalBorder;
        m_macVerticalBorder = kMacOSXVerticalBorder;
    }
    
    MacPreControlCreate( parent , id ,  label , pos , size ,style, validator , name , &bounds , title ) ;

    m_macControl = ::NewControl( MAC_WXHWND(parent->MacGetRootWindow()) , &bounds , title , false , 0 , 0 , 1, 
          kControlPushButtonProc , (long) this ) ;
    wxASSERT_MSG( (ControlHandle) m_macControl != NULL , wxT("No valid mac control") ) ;
    
    MacPostControlCreate() ;
    
  return TRUE;
}

void wxButton::SetDefault()
{
    wxWindow *parent = GetParent();
    wxButton *btnOldDefault = NULL;
    if ( parent )
    {
        btnOldDefault = wxDynamicCast(parent->GetDefaultItem(),
           wxButton);
        parent->SetDefaultItem(this);
    }

    Boolean inData;
    if ( btnOldDefault && btnOldDefault->m_macControl )
    {
          inData = 0;
        ::SetControlData( (ControlHandle) btnOldDefault->m_macControl , kControlButtonPart ,
                           kControlPushButtonDefaultTag , sizeof( Boolean ) , (char*)(&inData) ) ;
    }
    if ( (ControlHandle) m_macControl )
    {
          inData = 1;
        ::SetControlData(  (ControlHandle) m_macControl , kControlButtonPart ,
                           kControlPushButtonDefaultTag , sizeof( Boolean ) , (char*)(&inData) ) ;
    }
}

wxSize wxButton::DoGetBestSize() const
{
  wxSize sz = GetDefaultSize() ;
  
  int wBtn = m_label.Length() * 8 + 12 + 2 * kMacOSXHorizontalBorder ;
    
  if (wBtn > sz.x) sz.x = wBtn;
  
  return sz ;
}

wxSize wxButton::GetDefaultSize()
{
    int wBtn = 70 ; 
    int hBtn = 20 ;

    if ( UMAHasAquaLayout() )
    {
        wBtn += 2 * kMacOSXHorizontalBorder ;
        hBtn += 2 * kMacOSXVerticalBorder ;
    }

    return wxSize(wBtn, hBtn);
}

void wxButton::Command (wxCommandEvent & event)
{
    if ( (ControlHandle) m_macControl )
    {
        HiliteControl(  (ControlHandle) m_macControl , kControlButtonPart ) ;
        unsigned long finalTicks ;
        Delay( 8 , &finalTicks ) ;
        HiliteControl(  (ControlHandle) m_macControl , 0 ) ;
    }
    ProcessCommand (event);
}

void wxButton::MacHandleControlClick( WXWidget WXUNUSED(control) , wxInt16 controlpart ) 
{
    if ( controlpart != kControlNoPart )
    {
        wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, m_windowId );
        event.SetEventObject(this);
        ProcessCommand(event);
    }
}