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[wxWidgets.git] / src / gtk / mdi.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        mdi.cpp
// Purpose:
// Author:      Robert Roebling
// Id:          $Id$
// Copyright:   (c) 1998 Robert Roebling
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

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

#include "wx/mdi.h"
#include "wx/dialog.h"
#include "wx/menu.h"
#include <wx/intl.h>

#include "glib.h"
#include "gdk/gdk.h"
#include "gtk/gtk.h"
#include "wx/gtk/win_gtk.h"

//-----------------------------------------------------------------------------
// constants
//-----------------------------------------------------------------------------

const int wxMENU_HEIGHT    = 27;

//-----------------------------------------------------------------------------
// globals
//-----------------------------------------------------------------------------

extern wxList wxPendingDelete;

//-----------------------------------------------------------------------------
// "size_allocate"
//-----------------------------------------------------------------------------

static void gtk_page_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxWindow *win )
{
    if ((win->m_x == alloc->x) &&
        (win->m_y == alloc->y) &&
        (win->m_width == alloc->width) &&
        (win->m_height == alloc->height) &&
        (win->m_sizeSet))
    {
        return;
    }

    win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
}

//-----------------------------------------------------------------------------
// "switch_page"
//-----------------------------------------------------------------------------

static void gtk_page_change_callback( GtkNotebook *WXUNUSED(widget),
                                      GtkNotebookPage *page,
                                      gint WXUNUSED(nPage),
                                      wxMDIClientWindow *client_win )
{
    wxNode *node = client_win->m_children.First();
    while (node)
    {
        wxMDIChildFrame *child_frame = (wxMDIChildFrame *)node->Data();
        if (child_frame->m_page == page)
        {
            wxMDIParentFrame *mdi_frame = (wxMDIParentFrame*)client_win->m_parent;
            mdi_frame->m_currentChild = child_frame;
            mdi_frame->SetMDIMenuBar( child_frame->m_menuBar );
            return;
        }
        node = node->Next();
    }
}

//-----------------------------------------------------------------------------
// wxMDIParentFrame
//-----------------------------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxMDIParentFrame,wxFrame)

BEGIN_EVENT_TABLE(wxMDIParentFrame, wxFrame)
END_EVENT_TABLE()

wxMDIParentFrame::wxMDIParentFrame(void)
{
    m_clientWindow = (wxMDIClientWindow *) NULL;
    m_currentChild = (wxMDIChildFrame *) NULL;
    m_parentFrameActive = TRUE;
}

wxMDIParentFrame::wxMDIParentFrame( wxWindow *parent,
      wxWindowID id, const wxString& title,
      const wxPoint& pos, const wxSize& size,
      long style, const wxString& name )
{
    m_clientWindow = (wxMDIClientWindow *) NULL;
    m_currentChild = (wxMDIChildFrame *) NULL;
    m_parentFrameActive = TRUE;
    Create( parent, id, title, pos, size, style, name );
}

wxMDIParentFrame::~wxMDIParentFrame(void)
{
}

bool wxMDIParentFrame::Create( wxWindow *parent,
      wxWindowID id, const wxString& title,
      const wxPoint& pos, const wxSize& size,
      long style, const wxString& name )
{
    wxFrame::Create( parent, id, title, pos, size, style, name );

    OnCreateClient();

    return TRUE;
}

void wxMDIParentFrame::GtkOnSize( int x, int y, int width, int height )
{
    wxFrame::GtkOnSize( x, y, width, height );

    if (m_mdiMenuBar)
    {
        m_mdiMenuBar->m_x = 0;  
        m_mdiMenuBar->m_y = 0;
        m_mdiMenuBar->m_width = m_width;
        m_mdiMenuBar->m_height = wxMENU_HEIGHT;
        gtk_myfixed_move( GTK_MYFIXED(m_wxwindow), m_mdiMenuBar->m_widget, 0, 0 );
        gtk_widget_set_usize( m_mdiMenuBar->m_widget, m_width, wxMENU_HEIGHT );
    }
}

void wxMDIParentFrame::SetMDIMenuBar( wxMenuBar *menu_bar )
{
    /* hide old child menu bar */
    if (m_mdiMenuBar) m_mdiMenuBar->Show( FALSE );
    
    m_mdiMenuBar = menu_bar;
    
    /* show and resize new menu child menu bar */
    if (m_mdiMenuBar)
    {
        m_mdiMenuBar->m_x = 0;  
        m_mdiMenuBar->m_y = 0;
        m_mdiMenuBar->m_width = m_width;
        m_mdiMenuBar->m_height = wxMENU_HEIGHT;
        gtk_myfixed_move( GTK_MYFIXED(m_wxwindow), m_mdiMenuBar->m_widget, 0, 0 );
        gtk_widget_set_usize( m_mdiMenuBar->m_widget, m_width, wxMENU_HEIGHT );
        m_mdiMenuBar->Show( TRUE );
    }
    
    /* show/hide parent menu bar as required */
    if (m_frameMenuBar) m_frameMenuBar->Show( (m_mdiMenuBar == NULL) );
}

void wxMDIParentFrame::GetClientSize(int *width, int *height ) const
{
    wxFrame::GetClientSize( width, height );
}

wxMDIChildFrame *wxMDIParentFrame::GetActiveChild(void) const
{
    return m_currentChild;
}

wxMDIClientWindow *wxMDIParentFrame::GetClientWindow(void) const
{
    return m_clientWindow;
}

wxMDIClientWindow *wxMDIParentFrame::OnCreateClient(void)
{
    m_clientWindow = new wxMDIClientWindow( this );
    return m_clientWindow;
}

void wxMDIParentFrame::ActivateNext(void)
{
    if (m_clientWindow)
      gtk_notebook_next_page( GTK_NOTEBOOK(m_clientWindow->m_widget) );
}

void wxMDIParentFrame::ActivatePrevious(void)
{
    if (m_clientWindow)
      gtk_notebook_prev_page( GTK_NOTEBOOK(m_clientWindow->m_widget) );
}

void wxMDIParentFrame::OnActivate( wxActivateEvent& WXUNUSED(event) )
{
}

void wxMDIParentFrame::OnSysColourChanged( wxSysColourChangedEvent& WXUNUSED(event) )
{
}

//-----------------------------------------------------------------------------
// wxMDIChildFrame
//-----------------------------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxMDIChildFrame,wxFrame)
  
BEGIN_EVENT_TABLE(wxMDIChildFrame, wxFrame)
    EVT_ACTIVATE(wxMDIChildFrame::OnActivate)
END_EVENT_TABLE()

wxMDIChildFrame::wxMDIChildFrame(void)
{
    m_menuBar = (wxMenuBar *) NULL;
    m_page = (GtkNotebookPage *) NULL;
}

wxMDIChildFrame::wxMDIChildFrame( wxMDIParentFrame *parent,
      wxWindowID id, const wxString& title,
      const wxPoint& WXUNUSED(pos), const wxSize& size,
      long style, const wxString& name )
{
    m_menuBar = (wxMenuBar *) NULL;
    m_page = (GtkNotebookPage *) NULL;
    Create( parent, id, title, wxDefaultPosition, size, style, name );
}

wxMDIChildFrame::~wxMDIChildFrame(void)
{
    if (m_menuBar)
    {
        wxMDIParentFrame *mdi_frame = (wxMDIParentFrame*)m_parent->m_parent;
        if (mdi_frame->m_currentChild == this)
        {
            mdi_frame->SetMDIMenuBar( (wxMenuBar *) NULL );
            mdi_frame->m_currentChild = (wxMDIChildFrame *) NULL;
        }
        delete m_menuBar;
    }
}

bool wxMDIChildFrame::Create( wxMDIParentFrame *parent,
      wxWindowID id, const wxString& title,
      const wxPoint& WXUNUSED(pos), const wxSize& size,
      long style, const wxString& name )
{
    m_title = title;
  
    return wxWindow::Create( parent->GetClientWindow(), id, wxDefaultPosition, size, style, name );
}

void wxMDIChildFrame::GetClientSize( int *width, int *height ) const
{
    wxWindow::GetClientSize( width, height );
}

void wxMDIChildFrame::AddChild( wxWindow *child )
{
    wxWindow::AddChild( child );
}
  
static void SetInvokingWindow( wxMenu *menu, wxWindow *win )
{
    menu->SetInvokingWindow( win );
    wxNode *node = menu->m_items.First();
    while (node)
    {
        wxMenuItem *menuitem = (wxMenuItem*)node->Data();
        if (menuitem->IsSubMenu())
            SetInvokingWindow( menuitem->GetSubMenu(), win );
        node = node->Next();
    }
}

void wxMDIChildFrame::SetMenuBar( wxMenuBar *menu_bar )
{
    m_menuBar = menu_bar;

    if (m_menuBar)
    {
        wxMDIParentFrame *mdi_frame = (wxMDIParentFrame*)m_parent->m_parent;

       if (m_menuBar->m_parent != this)
       {
            wxNode *node = m_menuBar->m_menus.First();
            while (node)
            {
                wxMenu *menu = (wxMenu*)node->Data();
                SetInvokingWindow( menu, this );
                node = node->Next();
            }

            m_menuBar->m_parent = mdi_frame;
        }
	
        gtk_myfixed_put( GTK_MYFIXED(mdi_frame->m_wxwindow),
          m_menuBar->m_widget, m_menuBar->m_x, m_menuBar->m_y );
	  
        mdi_frame->SetMDIMenuBar( m_menuBar );
    }
}

wxMenuBar *wxMDIChildFrame::GetMenuBar() const
{
    return m_menuBar;
}

void wxMDIChildFrame::Activate(void)
{
}

void wxMDIChildFrame::OnActivate( wxActivateEvent &WXUNUSED(event) )
{
}

//-----------------------------------------------------------------------------
// InsertChild callback for wxMDIClientWindow
//-----------------------------------------------------------------------------

static void wxInsertChildInMDI( wxMDIClientWindow* parent, wxMDIChildFrame* child )
{
    wxString s = child->m_title;
    if (s.IsNull()) s = _("MDI child");

    GtkWidget *label_widget = gtk_label_new( s );
    gtk_misc_set_alignment( GTK_MISC(label_widget), 0.0, 0.5 );

    gtk_signal_connect( GTK_OBJECT(child->m_widget), "size_allocate",
      GTK_SIGNAL_FUNC(gtk_page_size_callback), (gpointer)child );
    
    GtkNotebook *notebook = GTK_NOTEBOOK(parent->m_widget);
    
    gtk_notebook_append_page( notebook, child->m_widget, label_widget );

    child->m_page = (GtkNotebookPage*) (g_list_last(notebook->children)->data);

    gtk_notebook_set_page( notebook, parent->m_children.Number()-1 );
  
    gtk_page_change_callback( (GtkNotebook *) NULL, child->m_page, 0, parent );
}

//-----------------------------------------------------------------------------
// wxMDIClientWindow
//-----------------------------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxMDIClientWindow,wxWindow)

wxMDIClientWindow::wxMDIClientWindow(void)
{
}

wxMDIClientWindow::wxMDIClientWindow( wxMDIParentFrame *parent, long style )
{
    CreateClient( parent, style );
}

wxMDIClientWindow::~wxMDIClientWindow(void)
{
}

bool wxMDIClientWindow::CreateClient( wxMDIParentFrame *parent, long style )
{
    m_needParent = TRUE;
  
    m_insertCallback = (wxInsertChildFunction)wxInsertChildInMDI;

    PreCreation( parent, -1, wxPoint(10,10), wxSize(100,100), style, "wxMDIClientWindow" );

    m_widget = gtk_notebook_new();

    gtk_signal_connect( GTK_OBJECT(m_widget), "switch_page",
                        GTK_SIGNAL_FUNC(gtk_page_change_callback), (gpointer)this );

    gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );

    m_parent->AddChild( this );

    (m_parent->m_insertCallback)( m_parent, this );
  
    PostCreation();

    Show( TRUE );

    return TRUE;
}