[gnome-terminal] window: Add some more functions to the MDI container

[Christian Persch <chpe src gnome org>]

commit 84b1046e0650b99bd62deb3fe267aa88a57bdea0
Author: Christian Persch <chpe gnome org>
Date:   Fri Jun 21 14:33:12 2013 +0200

    window: Add some more functions to the MDI container

 src/terminal-mdi-container.c |   32 +++++++++++++++++++++++++++++++-
 src/terminal-mdi-container.h |    8 ++++++++
 src/terminal-notebook.c      |   12 +++++++++++-
 3 files changed, 50 insertions(+), 2 deletions(-)
---
diff --git a/src/terminal-mdi-container.c b/src/terminal-mdi-container.c
index edeb7b9..66d506e 100644
--- a/src/terminal-mdi-container.c
+++ b/src/terminal-mdi-container.c
@@ -166,7 +166,16 @@ terminal_mdi_container_get_active_screen_num (TerminalMdiContainer *container)
   return TERMINAL_MDI_CONTAINER_GET_IFACE (container)->get_active_screen_num (container);
 }
 
-void 
+void
+terminal_mdi_container_set_active_screen_num (TerminalMdiContainer *container,
+                                              int position)
+{
+  g_return_if_fail (TERMINAL_IS_MDI_CONTAINER (container));
+
+  TERMINAL_MDI_CONTAINER_GET_IFACE (container)->set_active_screen_num (container, position);
+}
+
+void
 terminal_mdi_container_reorder_screen (TerminalMdiContainer *container,
                                        TerminalScreen *screen,
                                        int new_position)
@@ -175,3 +184,24 @@ terminal_mdi_container_reorder_screen (TerminalMdiContainer *container,
 
   return TERMINAL_MDI_CONTAINER_GET_IFACE (container)->reorder_screen (container, screen, new_position);
 }
+
+void
+terminal_mdi_container_change_screen (TerminalMdiContainer *container,
+                                      int change)
+{
+  int active, n;
+
+  g_return_if_fail (TERMINAL_IS_MDI_CONTAINER (container));
+  g_return_if_fail (change == -1 || change == 1);
+
+  n = terminal_mdi_container_get_n_screens (container);
+  active = terminal_mdi_container_get_active_screen_num (container);
+
+  active += change;
+  if (active < 0)
+    active = n - 1;
+  else if (active >= n)
+    active = 0;
+
+  terminal_mdi_container_set_active_screen_num (container, active);
+}
diff --git a/src/terminal-mdi-container.h b/src/terminal-mdi-container.h
index 724f8e7..c64154c 100644
--- a/src/terminal-mdi-container.h
+++ b/src/terminal-mdi-container.h
@@ -47,6 +47,8 @@ struct _TerminalMdiContainerInterface {
   GList *               (* list_screen_containers)  (TerminalMdiContainer *container);
   int                   (* get_n_screens)           (TerminalMdiContainer *container);
   int                   (* get_active_screen_num)   (TerminalMdiContainer *container);
+  void                  (* set_active_screen_num)   (TerminalMdiContainer *container,
+                                                     int position);
   void                  (* reorder_screen)          (TerminalMdiContainer *container,
                                                      TerminalScreen *screen,
                                                      int new_position);
@@ -77,6 +79,9 @@ TerminalScreen *terminal_mdi_container_get_active_screen (TerminalMdiContainer *
 void terminal_mdi_container_set_active_screen (TerminalMdiContainer *container,
                                                TerminalScreen *screen);
 
+void terminal_mdi_container_set_active_screen_num (TerminalMdiContainer *container,
+                                                   int position);
+
 GList *terminal_mdi_container_list_screens (TerminalMdiContainer *container);
 
 GList *terminal_mdi_container_list_screen_containers (TerminalMdiContainer *container);
@@ -89,6 +94,9 @@ void terminal_mdi_container_reorder_screen (TerminalMdiContainer *container,
                                             TerminalScreen *screen,
                                             int new_position);
 
+void terminal_mdi_container_change_screen (TerminalMdiContainer *container,
+                                           int change);
+
 G_END_DECLS
 
 #endif /* TERMINAL_MDI_CONTAINER_H */
diff --git a/src/terminal-notebook.c b/src/terminal-notebook.c
index a63a2b7..5862949 100644
--- a/src/terminal-notebook.c
+++ b/src/terminal-notebook.c
@@ -178,6 +178,15 @@ terminal_notebook_get_active_screen_num (TerminalMdiContainer *container)
 }
 
 static void
+terminal_notebook_set_active_screen_num (TerminalMdiContainer *container,
+                                         int position)
+{
+  GtkNotebook *gtk_notebook = GTK_NOTEBOOK (container);
+
+  gtk_notebook_set_current_page (gtk_notebook, position);
+}
+
+static void
 terminal_notebook_reorder_screen (TerminalMdiContainer *container,
                                   TerminalScreen *screen,
                                   int new_position)
@@ -193,7 +202,7 @@ terminal_notebook_reorder_screen (TerminalMdiContainer *container,
   pos = gtk_notebook_page_num (notebook, child);
 
   pos += new_position;
-  gtk_notebook_reorder_child (notebook, child, 
+  gtk_notebook_reorder_child (notebook, child,
                               pos < 0 ? n - 1 : pos < n ? pos : 0);
 }
 
@@ -208,6 +217,7 @@ terminal_notebook_mdi_iface_init (TerminalMdiContainerInterface *iface)
   iface->list_screen_containers = terminal_notebook_list_screen_containers;
   iface->get_n_screens = terminal_notebook_get_n_screens;
   iface->get_active_screen_num = terminal_notebook_get_active_screen_num;
+  iface->set_active_screen_num = terminal_notebook_set_active_screen_num;
   iface->reorder_screen = terminal_notebook_reorder_screen;
 }