tglbtn.cpp

很牛的GUI源码wxWidgets-2.8.0.zip 可在多种平台下运行.

/////////////////////////////////////////////////////////////////////////////
// Name:        src/mac/classic/tglbtn.cpp
// Purpose:     Definition of the wxToggleButton class, which implements a
//              toggle button under wxMac.
// Author:      Stefan Csomor
// Modified by:
// Created:     08.02.01
// RCS-ID:      $Id: tglbtn.cpp,v 1.3 2006/04/18 09:05:00 ABX Exp $
// Copyright:   (c) 2000 Johnny C. Norris II
// License:     Rocketeer license
/////////////////////////////////////////////////////////////////////////////

#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

// ============================================================================
// declatations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

#include "wx/tglbtn.h"

#if wxUSE_TOGGLEBTN

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

static const int kMacOSXHorizontalBorder = 2 ;
static const int kMacOSXVerticalBorder = 4 ;

// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxToggleButton, wxControl)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED)

// ============================================================================
// implementation
// ============================================================================

// ----------------------------------------------------------------------------
// wxToggleButton
// ----------------------------------------------------------------------------

// Single check box item
bool wxToggleButton::Create(wxWindow *parent, wxWindowID id,
                            const wxString& label,
                            const wxPoint& pos,
                            const wxSize& size, long style,
                            const wxValidator& validator,
                            const wxString& name)
{
    if ( !wxControl::Create(parent, id, pos, size, style, validator, name) )
        return false;

    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 , kControlBehaviorToggles , 1,
          kControlBevelButtonNormalBevelProc  , (long) this ) ;
    wxASSERT_MSG( (ControlHandle) m_macControl != NULL , wxT("No valid mac control") ) ;

    MacPostControlCreate() ;

    return true;
}

wxSize wxToggleButton::DoGetBestSize() const
{
    int wBtn = 70 ;
    int hBtn = 20 ;

    int lBtn = m_label.Length() * 8 + 12 ;
    if (lBtn > wBtn)
        wBtn = lBtn;

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

void wxToggleButton::SetValue(bool val)
{
    ::SetControl32BitValue( (ControlHandle) m_macControl , val ) ;
}

bool wxToggleButton::GetValue() const
{
    return GetControl32BitValue( (ControlHandle) m_macControl ) ;
}

void wxToggleButton::Command(wxCommandEvent & event)
{
   SetValue((event.GetInt() != 0));
   ProcessCommand(event);
}

void wxToggleButton::MacHandleControlClick( WXWidget WXUNUSED(control) , wxInt16 controlpart , bool WXUNUSED(mouseStillDown) )
{
    if ( controlpart != kControlNoPart )
    {
        wxCommandEvent event(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, m_windowId);
        event.SetInt(GetValue());
        event.SetEventObject(this);
        ProcessCommand(event);
    }
}

#endif // wxUSE_TOGGLEBTN