framecmn.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name:        common/framecmn.cpp
// Purpose:     common (for all platforms) wxFrame functions
// Author:      Julian Smart, Vadim Zeitlin
// Created:     01/02/97
// Id:          $Id: framecmn.cpp,v 1.65 2005/05/10 19:10:52 ABX Exp $
// Copyright:   (c) 1998 Robert Roebling and Julian Smart
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

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

#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
    #pragma implementation "framebase.h"
#endif

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#ifndef WX_PRECOMP
    #include "wx/frame.h"
    #include "wx/menu.h"
    #include "wx/menuitem.h"
    #include "wx/dcclient.h"
#endif // WX_PRECOMP

#if wxUSE_TOOLBAR
    #include "wx/toolbar.h"
#endif
#if wxUSE_STATUSBAR
    #include "wx/statusbr.h"
#endif

// ----------------------------------------------------------------------------
// event table
// ----------------------------------------------------------------------------

#if wxUSE_MENUS && wxUSE_STATUSBAR

BEGIN_EVENT_TABLE(wxFrameBase, wxTopLevelWindow)
    EVT_MENU_OPEN(wxFrameBase::OnMenuOpen)
    EVT_MENU_CLOSE(wxFrameBase::OnMenuClose)

    EVT_MENU_HIGHLIGHT_ALL(wxFrameBase::OnMenuHighlight)
END_EVENT_TABLE()

#endif // wxUSE_MENUS && wxUSE_STATUSBAR

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

// ----------------------------------------------------------------------------
// construction/destruction
// ----------------------------------------------------------------------------

wxFrameBase::wxFrameBase()
{
#if wxUSE_MENUS
    m_frameMenuBar = NULL;
#endif // wxUSE_MENUS

#if wxUSE_TOOLBAR
    m_frameToolBar = NULL;
#endif // wxUSE_TOOLBAR

#if wxUSE_STATUSBAR
    m_frameStatusBar = NULL;
#endif // wxUSE_STATUSBAR

    m_statusBarPane = 0;
}

wxFrameBase::~wxFrameBase()
{
    // this destructor is required for Darwin
}

wxFrame *wxFrameBase::New(wxWindow *parent,
                          wxWindowID id,
                          const wxString& title,
                          const wxPoint& pos,
                          const wxSize& size,
                          long style,
                          const wxString& name)
{
    return new wxFrame(parent, id, title, pos, size, style, name);
}

void wxFrameBase::DeleteAllBars()
{
#if wxUSE_MENUS
    if ( m_frameMenuBar )
    {
        delete m_frameMenuBar;
        m_frameMenuBar = (wxMenuBar *) NULL;
    }
#endif // wxUSE_MENUS

#if wxUSE_STATUSBAR
    if ( m_frameStatusBar )
    {
        delete m_frameStatusBar;
        m_frameStatusBar = (wxStatusBar *) NULL;
    }
#endif // wxUSE_STATUSBAR

#if wxUSE_TOOLBAR
    if ( m_frameToolBar )
    {
        delete m_frameToolBar;
        m_frameToolBar = (wxToolBar *) NULL;
    }
#endif // wxUSE_TOOLBAR
}

bool wxFrameBase::IsOneOfBars(const wxWindow *win) const
{
#if wxUSE_MENUS
    if ( win == GetMenuBar() )
        return true;
#endif // wxUSE_MENUS

#if wxUSE_STATUSBAR
    if ( win == GetStatusBar() )
        return true;
#endif // wxUSE_STATUSBAR

#if wxUSE_TOOLBAR
    if ( win == GetToolBar() )
        return true;
#endif // wxUSE_TOOLBAR

    return false;
}

// ----------------------------------------------------------------------------
// wxFrame size management: we exclude the areas taken by menu/status/toolbars
// from the client area, so the client area is what's really available for the
// frame contents
// ----------------------------------------------------------------------------

// get the origin of the client area in the client coordinates
wxPoint wxFrameBase::GetClientAreaOrigin() const
{
    wxPoint pt = wxTopLevelWindow::GetClientAreaOrigin();

#if wxUSE_TOOLBAR && !defined(__WXUNIVERSAL__)
    wxToolBar *toolbar = GetToolBar();
    if ( toolbar && toolbar->IsShown() )
    {
        int w, h;
        toolbar->GetSize(&w, &h);

        if ( toolbar->GetWindowStyleFlag() & wxTB_VERTICAL )
        {
            pt.x += w;
        }
        else
        {
            pt.y += h;
        }
    }
#endif // wxUSE_TOOLBAR

    return pt;
}


void wxFrameBase::SendSizeEvent()
{
    wxSizeEvent event( GetSize(), GetId() );
    event.SetEventObject( this );
    GetEventHandler()->AddPendingEvent( event );
}


// ----------------------------------------------------------------------------
// misc
// ----------------------------------------------------------------------------

bool wxFrameBase::ProcessCommand(int id)
{
#if wxUSE_MENUS
    wxMenuBar *bar = GetMenuBar();
    if ( !bar )
        return false;

    wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, id);
    commandEvent.SetEventObject(this);

    wxMenuItem *item = bar->FindItem(id);
    if (item)
    {
        if (!item->IsEnabled())
            return true;

        if ((item->GetKind() == wxITEM_RADIO) && item->IsChecked() )
            return true;

        if (item->IsCheckable())
        {
            item->Toggle();

            // use the new value
            commandEvent.SetInt(item->IsChecked());
        }
    }

    GetEventHandler()->ProcessEvent(commandEvent);
    return true;
#else // !wxUSE_MENUS
    return false;
#endif // wxUSE_MENUS/!wxUSE_MENUS
}

// Do the UI update processing for this window. This is
// provided for the application to call if it wants to
// force a UI update, particularly for the menus and toolbar.
void wxFrameBase::UpdateWindowUI(long flags)
{
    wxWindowBase::UpdateWindowUI(flags);

#if wxUSE_TOOLBAR
    if (GetToolBar())
        GetToolBar()->UpdateWindowUI(flags);
#endif

#if wxUSE_MENUS
    if (GetMenuBar())
    {
        if ((flags & wxUPDATE_UI_FROMIDLE) && !wxUSE_IDLEMENUUPDATES)
        {
            // If coming from an idle event, we only
            // want to update the menus if we're
            // in the wxUSE_IDLEMENUUPDATES configuration:
            // so if we're not, do nothing
        }
        else
            DoMenuUpdates();
    }
#endif // wxUSE_MENUS
}

// ----------------------------------------------------------------------------
// event handlers for status bar updates from menus
// ----------------------------------------------------------------------------

#if wxUSE_MENUS && wxUSE_STATUSBAR

void wxFrameBase::OnMenuHighlight(wxMenuEvent& event)
{
#if wxUSE_STATUSBAR
    (void)ShowMenuHelp(GetStatusBar(), event.GetMenuId());
#endif // wxUSE_STATUSBAR
}

#if !wxUSE_IDLEMENUUPDATES
void wxFrameBase::OnMenuOpen(wxMenuEvent& event)
#else
void wxFrameBase::OnMenuOpen(wxMenuEvent& WXUNUSED(event))
#endif
{
#if !wxUSE_IDLEMENUUPDATES
    DoMenuUpdates(event.GetMenu());
#endif // !wxUSE_IDLEMENUUPDATES
}

void wxFrameBase::OnMenuClose(wxMenuEvent& WXUNUSED(event))
{
    // do we have real status text to restore?
    if ( !m_oldStatusText.empty() )
    {
        if ( m_statusBarPane >= 0 )
        {
            wxStatusBar *statbar = GetStatusBar();
            if ( statbar )
                statbar->SetStatusText(m_oldStatusText, m_statusBarPane);
        }

        m_oldStatusText.clear();
    }