X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/33d0b396b23cc198d6966d2ae4bd03762821e56c..021efd65100322b3c152cc1017cfb961664d30a4:/src/gtk/mdi.cpp

diff --git a/src/gtk/mdi.cpp b/src/gtk/mdi.cpp
index 160828e8cd..9778056ad3 100644
--- a/src/gtk/mdi.cpp
+++ b/src/gtk/mdi.cpp
@@ -1,216 +1,440 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        mdi.cpp
+// Name:        src/gtk/mdi.cpp
 // Purpose:
 // Author:      Robert Roebling
-// Created:     01/02/97
-// Id:
-// Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
-// Licence:   	wxWindows licence
+// Id:          $Id$
+// Copyright:   (c) 1998 Robert Roebling
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
-#pragma implementation "mdi.h"
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#if wxUSE_MDI
 
 #include "wx/mdi.h"
 
+#ifndef WX_PRECOMP
+    #include "wx/intl.h"
+    #include "wx/menu.h"
+#endif
+
+#include "wx/gtk/private.h"
+
 //-----------------------------------------------------------------------------
-// wxMDIParentFrame
+// "switch_page"
 //-----------------------------------------------------------------------------
 
-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))
-  {
-    return;
-  };
-  
-  win->SetSize( alloc->x, alloc->y, alloc->width, alloc->height );
-};
+extern "C" {
+static void
+gtk_mdi_page_change_callback( GtkNotebook *WXUNUSED(widget),
+                              GtkNotebookPage *page,
+                              gint WXUNUSED(page_num),
+                              wxMDIParentFrame *parent )
+{
+    // send deactivate event to old child
+
+    wxMDIChildFrame *child = parent->GetActiveChild();
+    if (child)
+    {
+        wxActivateEvent event1( wxEVT_ACTIVATE, false, child->GetId() );
+        event1.SetEventObject( child);
+        child->HandleWindowEvent( event1 );
+    }
+
+    // send activate event to new child
+
+    wxMDIClientWindowBase *client_window = parent->GetClientWindow();
+    if ( !client_window )
+        return;
+
+    child = NULL;
+
+    wxWindowList::compatibility_iterator node = client_window->GetChildren().GetFirst();
+    while ( node )
+    {
+        wxMDIChildFrame *child_frame = wxDynamicCast( node->GetData(), wxMDIChildFrame );
+
+        // child_frame can be NULL when this is called from dtor, probably
+        // because g_signal_connect (m_widget, "switch_page", (see below)
+        // isn't deleted early enough
+        if ( child_frame && child_frame->m_page == page )
+        {
+            child = child_frame;
+            break;
+        }
+        node = node->GetNext();
+    }
+
+    if (!child)
+         return;
+
+    wxActivateEvent event2( wxEVT_ACTIVATE, true, child->GetId() );
+    event2.SetEventObject( child);
+    child->HandleWindowEvent( event2 );
+}
+}
 
+//-----------------------------------------------------------------------------
+// wxMDIParentFrame
 //-----------------------------------------------------------------------------
 
 IMPLEMENT_DYNAMIC_CLASS(wxMDIParentFrame,wxFrame)
 
-wxMDIParentFrame::wxMDIParentFrame(void)
+void wxMDIParentFrame::Init()
 {
-  m_clientWindow = NULL;
-  m_currentChild = 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_justInserted = false;
+}
+
+bool wxMDIParentFrame::Create(wxWindow *parent,
+                              wxWindowID id,
+                              const wxString& title,
+                              const wxPoint& pos,
+                              const wxSize& size,
+                              long style,
+                              const wxString& name )
 {
-  m_clientWindow = NULL;
-  m_currentChild = NULL;
-  m_parentFrameActive = TRUE;
-  Create( parent, id, title, pos, size, style, name );
-};
+    if ( !wxFrame::Create( parent, id, title, pos, size, style, name ) )
+        return false;
 
-wxMDIParentFrame::~wxMDIParentFrame(void)
-{
-};
+    m_clientWindow = OnCreateClient();
+    if ( !m_clientWindow->CreateClient(this, GetWindowStyleFlag()) )
+        return false;
 
-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;
-};
+    return true;
+}
 
-void wxMDIParentFrame::OnSize( wxSizeEvent& event )
+void wxMDIParentFrame::OnInternalIdle()
 {
-  wxFrame::OnSize( event );
-};
-
-void wxMDIParentFrame::OnActivate( wxActivateEvent& WXUNUSED(event) )
+    /* if a MDI child window has just been inserted
+       it has to be brought to the top in idle time. we
+       simply set the last notebook page active as new
+       pages can only be appended at the end */
+
+    if (m_justInserted)
+    {
+        GtkNotebook *notebook = GTK_NOTEBOOK(m_clientWindow->m_widget);
+        gtk_notebook_set_current_page( notebook, g_list_length( notebook->children ) - 1 );
+
+        /* need to set the menubar of the child */
+        wxMDIChildFrame *active_child_frame = GetActiveChild();
+        if (active_child_frame != NULL)
+        {
+            wxMenuBar *menu_bar = active_child_frame->m_menuBar;
+            if (menu_bar)
+            {
+                menu_bar->SetInvokingWindow(active_child_frame);
+            }
+        }
+        m_justInserted = false;
+        return;
+    }
+
+    wxFrame::OnInternalIdle();
+
+    wxMDIChildFrame *active_child_frame = GetActiveChild();
+    bool visible_child_menu = false;
+
+    wxWindowList::compatibility_iterator node = m_clientWindow->GetChildren().GetFirst();
+    while (node)
+    {
+        wxMDIChildFrame *child_frame = wxDynamicCast( node->GetData(), wxMDIChildFrame );
+
+        if ( child_frame )
+        {
+            wxMenuBar *menu_bar = child_frame->m_menuBar;
+            if ( menu_bar )
+            {
+                if (child_frame == active_child_frame)
+                {
+                    if (menu_bar->Show(true))
+                    {
+                        menu_bar->SetInvokingWindow( child_frame );
+                    }
+                    visible_child_menu = true;
+                }
+                else
+                {
+                    if (menu_bar->Show(false))
+                    {
+                        menu_bar->UnsetInvokingWindow( child_frame );
+                    }
+                }
+            }
+        }
+
+        node = node->GetNext();
+    }
+
+    /* show/hide parent menu bar as required */
+    if ((m_frameMenuBar) &&
+        (m_frameMenuBar->IsShown() == visible_child_menu))
+    {
+        if (visible_child_menu)
+        {
+            m_frameMenuBar->Show( false );
+            m_frameMenuBar->UnsetInvokingWindow( this );
+        }
+        else
+        {
+            m_frameMenuBar->Show( true );
+            m_frameMenuBar->SetInvokingWindow( this );
+        }
+    }
+}
+
+void wxMDIParentFrame::DoGetClientSize(int* width, int* height) const
 {
-};
-
-void wxMDIParentFrame::SetMenuBar( wxMenuBar *menu_bar )
+    wxFrame::DoGetClientSize(width, height);
+
+    if (height)
+    {
+        wxMDIChildFrame* active_child_frame = GetActiveChild();
+        if (active_child_frame)
+        {
+            wxMenuBar* menubar = active_child_frame->m_menuBar;
+            if (menubar && menubar->IsShown())
+            {
+                GtkRequisition req;
+                gtk_widget_size_request(menubar->m_widget, &req);
+                *height -= req.height;
+                if (*height < 0) *height = 0;
+            }
+        }
+    }
+}
+
+wxMDIChildFrame *wxMDIParentFrame::GetActiveChild() const
 {
-  wxFrame::SetMenuBar( menu_bar );
-};
+    if (!m_clientWindow) return NULL;
 
-void wxMDIParentFrame::GetClientSize(int *width, int *height ) const
-{
-  wxFrame::GetClientSize( width, height );
-};
+    GtkNotebook *notebook = GTK_NOTEBOOK(m_clientWindow->m_widget);
+    if (!notebook) return NULL;
 
-wxMDIChildFrame *wxMDIParentFrame::GetActiveChild(void) const
-{
-  return m_currentChild;
-};
+    gint i = gtk_notebook_get_current_page( notebook );
+    if (i < 0) return NULL;
 
-wxMDIClientWindow *wxMDIParentFrame::GetClientWindow(void) const
-{
-  return m_clientWindow;
-};
+    GtkNotebookPage* page = (GtkNotebookPage*) (g_list_nth(notebook->children,i)->data);
+    if (!page) return NULL;
 
-wxMDIClientWindow *wxMDIParentFrame::OnCreateClient(void)
-{
-  m_clientWindow = new wxMDIClientWindow( this );
-  return m_clientWindow;
-};
+    wxWindowList::compatibility_iterator node = m_clientWindow->GetChildren().GetFirst();
+    while (node)
+    {
+        if ( wxPendingDelete.Member(node->GetData()) )
+            return NULL;
 
-void wxMDIParentFrame::ActivateNext(void)
-{
-};
+        wxMDIChildFrame *child_frame = wxDynamicCast( node->GetData(), wxMDIChildFrame );
+
+        if (!child_frame)
+            return NULL;
 
-void wxMDIParentFrame::ActivatePrevious(void)
+        if (child_frame->m_page == page)
+            return child_frame;
+
+        node = node->GetNext();
+    }
+
+    return NULL;
+}
+
+void wxMDIParentFrame::ActivateNext()
 {
-};
+    if (m_clientWindow)
+      gtk_notebook_next_page( GTK_NOTEBOOK(m_clientWindow->m_widget) );
+}
 
-void wxMDIParentFrame::OnSysColourChanged( wxSysColourChangedEvent& WXUNUSED(event) )
+void wxMDIParentFrame::ActivatePrevious()
 {
-};
+    if (m_clientWindow)
+      gtk_notebook_prev_page( GTK_NOTEBOOK(m_clientWindow->m_widget) );
+}
 
 //-----------------------------------------------------------------------------
 // wxMDIChildFrame
 //-----------------------------------------------------------------------------
 
-IMPLEMENT_DYNAMIC_CLASS(wxMDIChildFrame,wxPanel)
-  
-wxMDIChildFrame::wxMDIChildFrame(void)
+IMPLEMENT_DYNAMIC_CLASS(wxMDIChildFrame,wxFrame)
+
+BEGIN_EVENT_TABLE(wxMDIChildFrame, wxFrame)
+    EVT_ACTIVATE(wxMDIChildFrame::OnActivate)
+    EVT_MENU_HIGHLIGHT_ALL(wxMDIChildFrame::OnMenuHighlight)
+END_EVENT_TABLE()
+
+void wxMDIChildFrame::Init()
+{
+    m_menuBar = NULL;
+    m_page = NULL;
+}
+
+bool wxMDIChildFrame::Create(wxMDIParentFrame *parent,
+                             wxWindowID id,
+                             const wxString& title,
+                             const wxPoint& WXUNUSED(pos),
+                             const wxSize& size,
+                             long style,
+                             const wxString& name)
 {
-};
+    m_mdiParent = parent;
+    m_title = title;
 
-wxMDIChildFrame::wxMDIChildFrame( wxMDIParentFrame *parent,
-      wxWindowID id, const wxString& title,
-      const wxPoint& WXUNUSED(pos), const wxSize& size,
-      long style, const wxString& name )
+    return wxWindow::Create(parent->GetClientWindow(), id,
+                            wxDefaultPosition, size,
+                            style, name);
+}
+
+wxMDIChildFrame::~wxMDIChildFrame()
 {
-  Create( parent, id, title, wxDefaultPosition, size, style, name );
-};
+    delete m_menuBar;
+
+    // wxMDIClientWindow does not get redrawn properly after last child is removed
+    if (m_parent && m_parent->GetChildren().size() <= 1)
+        gtk_widget_queue_draw(m_parent->m_widget);
+}
 
-wxMDIChildFrame::~wxMDIChildFrame(void)
+void wxMDIChildFrame::SetMenuBar( wxMenuBar *menu_bar )
 {
-};
+    wxASSERT_MSG( m_menuBar == NULL, "Only one menubar allowed" );
+
+    m_menuBar = menu_bar;
+
+    if (m_menuBar)
+    {
+        wxMDIParentFrame *mdi_frame = (wxMDIParentFrame*)m_parent->GetParent();
+
+        m_menuBar->SetParent( mdi_frame );
+
+        /* insert the invisible menu bar into the _parent_ mdi frame */
+        m_menuBar->Show(false);
+        gtk_box_pack_start(GTK_BOX(mdi_frame->m_mainWidget), m_menuBar->m_widget, false, false, 0);
+        gtk_box_reorder_child(GTK_BOX(mdi_frame->m_mainWidget), m_menuBar->m_widget, 0);
+
+        gulong handler_id = g_signal_handler_find(
+            m_menuBar->m_widget,
+            GSignalMatchType(G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_DATA),
+            g_signal_lookup("size_request", GTK_TYPE_WIDGET),
+            0, NULL, NULL, m_menuBar);
+        if (handler_id != 0)
+            g_signal_handler_disconnect(m_menuBar->m_widget, handler_id);
+        gtk_widget_set_size_request(m_menuBar->m_widget, -1, -1);
+    }
+}
 
-bool wxMDIChildFrame::Create( wxMDIParentFrame *parent,
-      wxWindowID id, const wxString& title,
-      const wxPoint& WXUNUSED(pos), const wxSize& size,
-      long style, const wxString& name )
+wxMenuBar *wxMDIChildFrame::GetMenuBar() const
 {
-  m_title = title;
-  return wxPanel::Create( parent->GetClientWindow(), id, wxDefaultPosition, size, style, name );
-};
+    return m_menuBar;
+}
 
-void wxMDIChildFrame::SetMenuBar( wxMenuBar *WXUNUSED(menu_bar) )
+GtkNotebook *wxMDIChildFrame::GTKGetNotebook() const
 {
-};
+    wxMDIClientWindow * const
+        client = wxStaticCast(GetParent(), wxMDIClientWindow);
+    wxCHECK( client, NULL );
 
-void wxMDIChildFrame::Activate(void)
+    return GTK_NOTEBOOK(client->m_widget);
+}
+
+void wxMDIChildFrame::Activate()
+{
+    GtkNotebook * const notebook = GTKGetNotebook();
+    wxCHECK_RET( notebook, "no parent notebook?" );
+
+    gint pageno = gtk_notebook_page_num( notebook, m_widget );
+    gtk_notebook_set_current_page( notebook, pageno );
+}
+
+void wxMDIChildFrame::OnActivate( wxActivateEvent& WXUNUSED(event) )
 {
-};
+}
+
+void wxMDIChildFrame::OnMenuHighlight( wxMenuEvent& event )
+{
+#if wxUSE_STATUSBAR
+    wxMDIParentFrame *mdi_frame = (wxMDIParentFrame*)m_parent->GetParent();
+    if ( !ShowMenuHelp(event.GetMenuId()) )
+    {
+        // we don't have any help text for this item, but may be the MDI frame
+        // does?
+        mdi_frame->OnMenuHighlight(event);
+    }
+#endif // wxUSE_STATUSBAR
+}
+
+void wxMDIChildFrame::SetTitle( const wxString &title )
+{
+    if ( title == m_title )
+        return;
+
+    m_title = title;
+
+    GtkNotebook * const notebook = GTKGetNotebook();
+    wxCHECK_RET( notebook, "no parent notebook?" );
+    gtk_notebook_set_tab_label_text(notebook, m_widget, wxGTK_CONV( title ) );
+}
 
 //-----------------------------------------------------------------------------
 // wxMDIClientWindow
 //-----------------------------------------------------------------------------
 
-IMPLEMENT_DYNAMIC_CLASS(wxMDIClientWindow,wxWindow)
+IMPLEMENT_DYNAMIC_CLASS(wxMDIClientWindow, wxWindow)
 
-wxMDIClientWindow::wxMDIClientWindow(void)
+wxMDIClientWindow::~wxMDIClientWindow()
 {
-};
-
-wxMDIClientWindow::wxMDIClientWindow( wxMDIParentFrame *parent, long style )
+    // disconnect our handler because our ~wxWindow (which is going to be called
+    // after this dtor) will call DestroyChildren(); in turns our children
+    // ~wxWindow dtors will call wxWindow::Show(false) and this will generate
+    // a call to gtk_mdi_page_change_callback with an invalid parent
+    // (because gtk_mdi_page_change_callback expects a wxMDIClientWindow but
+    //  at that point of the dtor chain we are a simple wxWindow!)
+    g_signal_handlers_disconnect_by_func(m_widget,
+                                         (gpointer)gtk_mdi_page_change_callback,
+                                         GetParent());
+}
+
+bool wxMDIClientWindow::CreateClient(wxMDIParentFrame *parent, long style)
 {
-  CreateClient( parent, style );
-};
+    if ( !PreCreation( parent, wxDefaultPosition, wxDefaultSize ) ||
+         !CreateBase( parent, wxID_ANY, wxDefaultPosition, wxDefaultSize,
+                       style, wxDefaultValidator, "wxMDIClientWindow" ))
+    {
+        wxFAIL_MSG( "wxMDIClientWindow creation failed" );
+        return false;
+    }
 
-wxMDIClientWindow::~wxMDIClientWindow(void)
-{
-};
+    m_widget = gtk_notebook_new();
+    g_object_ref(m_widget);
 
-bool wxMDIClientWindow::CreateClient( wxMDIParentFrame *parent, long style )
-{
-  m_needParent = TRUE;
-  
-  PreCreation( parent, -1, wxPoint(10,10), wxSize(100,100), style, "wxMDIClientWindow" );
+    g_signal_connect (m_widget, "switch_page",
+                      G_CALLBACK (gtk_mdi_page_change_callback), parent);
 
-  m_widget = gtk_notebook_new();
-  
-  PostCreation();
-  
-  Show( TRUE );
-  
-  return TRUE;
-};
+    gtk_notebook_set_scrollable( GTK_NOTEBOOK(m_widget), 1 );
 
-void wxMDIClientWindow::AddChild( wxWindow *child )
+    m_parent->DoAddChild( this );
+
+    PostCreation();
+
+    Show( true );
+
+    return true;
+}
+
+void wxMDIClientWindow::AddChildGTK(wxWindowGTK* child)
 {
-  m_children.Append( child );
-  
-  wxString s;
+    wxMDIChildFrame* child_frame = static_cast<wxMDIChildFrame*>(child);
+    wxString s = child_frame->GetTitle();
+    if ( s.empty() )
+        s = _("MDI child");
+
+    GtkWidget *label_widget = gtk_label_new( s.mbc_str() );
+    gtk_misc_set_alignment( GTK_MISC(label_widget), 0.0, 0.5 );
+
+    GtkNotebook* notebook = GTK_NOTEBOOK(m_widget);
 
-  if (child->IsKindOf(CLASSINFO(wxMDIChildFrame)))
-  {
-    wxMDIChildFrame* mdi_child = (wxMDIChildFrame*) child;
-    s = mdi_child->m_title;
-  };
-  
-  if (s.IsNull()) s = "MDI child";
-  
-  GtkWidget *label_widget;
-  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 );
+    gtk_notebook_append_page( notebook, child->m_widget, label_widget );
 
-  gtk_notebook_append_page( GTK_NOTEBOOK(m_widget), child->m_widget, label_widget );
-};
+    child_frame->m_page = (GtkNotebookPage*) (g_list_last(notebook->children)->data);
 
+    wxMDIParentFrame* parent_frame = static_cast<wxMDIParentFrame*>(GetParent());
+    parent_frame->m_justInserted = true;
+}
 
+#endif // wxUSE_MDI