1 files changed, 168 insertions, 0 deletions
diff --git a/app/menus/window-menu.c b/app/menus/window-menu.c
new file mode 100644
index 0000000..7391e92
--- /dev/null
+++ b/app/menus/window-menu.c
@@ -0,0 +1,168 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+
+#include "menus-types.h"
+
+#include "config/gimpguiconfig.h"
+
+#include "core/gimp.h"
+
+#include "widgets/gimpuimanager.h"
+
+#include "window-menu.h"
+
+
+/*  private functions  */
+
+static void   window_menu_display_opened (GdkDisplayManager *disp_manager,
+                                          GdkDisplay        *display,
+                                          GimpUIManager     *manager);
+static void   window_menu_display_closed (GdkDisplay        *display,
+                                          gboolean           is_error,
+                                          GimpUIManager     *manager);
+
+
+/*  public functions  */
+
+void
+window_menu_setup (GimpUIManager *manager,
+                   const gchar   *group_name,
+                   const gchar   *ui_path)
+{
+  GdkDisplayManager *disp_manager = gdk_display_manager_get ();
+  GSList            *displays;
+  GSList            *list;
+
+  g_return_if_fail (GIMP_IS_UI_MANAGER (manager));
+  g_return_if_fail (ui_path != NULL);
+
+  g_object_set_data_full (G_OBJECT (manager), "move-to-screen-group-name",
+                          g_strdup (group_name),
+                          (GDestroyNotify) g_free);
+  g_object_set_data_full (G_OBJECT (manager), "move-to-screen-ui-path",
+                          g_strdup (ui_path),
+                          (GDestroyNotify) g_free);
+
+  displays = gdk_display_manager_list_displays (disp_manager);
+
+  /*  present displays in the order in which they were opened  */
+  displays = g_slist_reverse (displays);
+
+  for (list = displays; list; list = g_slist_next (list))
+    {
+      window_menu_display_opened (disp_manager, list->data, manager);
+    }
+
+  g_slist_free (displays);
+
+  g_signal_connect_object (disp_manager, "display-opened",
+                           G_CALLBACK (window_menu_display_opened),
+                           G_OBJECT (manager), 0);
+}
+
+
+/*  private functions  */
+
+static void
+window_menu_display_opened (GdkDisplayManager *disp_manager,
+                            GdkDisplay        *display,
+                            GimpUIManager     *manager)
+{
+  const gchar *group_name;
+  const gchar *ui_path;
+  const gchar *display_name;
+  gchar       *action_path;
+  gchar       *merge_key;
+  guint        merge_id;
+  gint         n_screens;
+  gint         i;
+
+  group_name = g_object_get_data (G_OBJECT (manager),
+                                  "move-to-screen-group-name");
+  ui_path    = g_object_get_data (G_OBJECT (manager),
+                                  "move-to-screen-ui-path");
+
+  action_path = g_strdup_printf ("%s/Move to Screen", ui_path);
+
+  display_name = gdk_display_get_name (display);
+  if (! display_name)
+    display_name = "eek";
+
+  merge_key = g_strdup_printf ("%s-display-merge-id", display_name);
+
+  merge_id = gimp_ui_manager_new_merge_id (manager);
+  g_object_set_data (G_OBJECT (manager), merge_key,
+                     GUINT_TO_POINTER (merge_id));
+
+  g_free (merge_key);
+
+  n_screens = gdk_display_get_n_screens (display);
+
+  for (i = 0; i < n_screens; i++)
+    {
+      GdkScreen *screen;
+      gchar     *screen_name;
+      gchar     *action_name;
+
+      screen = gdk_display_get_screen (display, i);
+
+      screen_name = gdk_screen_make_display_name (screen);
+      action_name = g_strdup_printf ("%s-move-to-screen-%s",
+                                     group_name, screen_name);
+      g_free (screen_name);
+
+      gimp_ui_manager_add_ui (manager, merge_id,
+                              action_path, action_name, action_name,
+                              GTK_UI_MANAGER_MENUITEM,
+                              FALSE);
+
+      g_free (action_name);
+    }
+
+  g_free (action_path);
+
+  g_signal_connect_object (display, "closed",
+                           G_CALLBACK (window_menu_display_closed),
+                           G_OBJECT (manager), 0);
+}
+
+static void
+window_menu_display_closed (GdkDisplay    *display,
+                            gboolean       is_error,
+                            GimpUIManager *manager)
+{
+  const gchar *display_name;
+  gchar       *merge_key;
+  guint        merge_id;
+
+  display_name = gdk_display_get_name (display);
+  if (! display_name)
+    display_name = "eek";
+
+  merge_key = g_strdup_printf ("%s-display-merge-id", display_name);
+  merge_id = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (manager),
+                                                  merge_key));
+  g_free (merge_key);
+
+  if (merge_id)
+    gimp_ui_manager_remove_ui (manager, merge_id);
+}