src/dirty_gtk.c

   1 /* Even the GPL header does not want to be associated with "that". */
   2
   3 #include "gliv.h"
   4 #include "dirty_gtk.h"
   5
   6 /*
   7  * This is the only way I found to build a menu with N items in O(N)
   8  * time instead of O(N²).
   9  */
  10
  11 #define CHILDREN(dirty_menu) GTK_MENU_SHELL((dirty_menu)->gtk_menu)->children
  12
  13 DirtyGtkMenu *dirty_gtk_menu_new(void)
  14 {
  15     DirtyGtkMenu *menu = g_new(DirtyGtkMenu, 1);
  16
  17     menu->gtk_menu = GTK_MENU(gtk_menu_new());
  18     menu->tearoff = GTK_TEAROFF_MENU_ITEM(gtk_tearoff_menu_item_new());
  19
  20     gtk_menu_append(menu->gtk_menu, GTK_WIDGET(menu->tearoff));
  21     menu->last_child = g_list_last(CHILDREN(menu));
  22
  23     return menu;
  24 }
  25
  26 void dirty_gtk_menu_append(DirtyGtkMenu * menu, GtkWidget * item)
  27 {
  28     GList *children = CHILDREN(menu);
  29
  30     menu->last_child = g_list_last(menu->last_child);
  31     CHILDREN(menu) = menu->last_child;
  32
  33     gtk_menu_shell_append(GTK_MENU_SHELL(menu->gtk_menu), item);
  34     CHILDREN(menu) = children;
  35 }
  36
  37 GtkTearoffMenuItem *dirty_gtk_menu_get_tearoff(DirtyGtkMenu * menu)
  38 {
  39     return menu->tearoff;
  40 }
  41
  42 void dirty_gtk_menu_release(DirtyGtkMenu * menu)
  43 {
  44     g_free(menu);
  45 }
  46
  47 /*** ::grab-notify ***/
  48
  49 /*
  50  * This is borrowed from gtk+-2, without the gtk_grab_notify() calls.
  51  * They slow down things a lot when the images menus are built with many files.
  52  */
  53 GtkWindowGroup *_gtk_window_get_group(GtkWindow * window)
  54 {
  55     if (window && window->group)
  56         return window->group;
  57     else {
  58         static GtkWindowGroup *default_group = NULL;
  59
  60         if (!default_group)
  61             default_group = gtk_window_group_new();
  62
  63         return default_group;
  64     }
  65 }
  66
  67 static GtkWindowGroup *gtk_main_get_window_group(GtkWidget * widget)
  68 {
  69     GtkWidget *toplevel = NULL;
  70
  71     if (widget)
  72         toplevel = gtk_widget_get_toplevel(widget);
  73
  74     if (toplevel && GTK_IS_WINDOW(toplevel))
  75         return _gtk_window_get_group(GTK_WINDOW(toplevel));
  76     else
  77         return _gtk_window_get_group(NULL);
  78 }
  79
  80 void gtk_grab_add(GtkWidget * widget)
  81 {
  82     GtkWindowGroup *group;
  83
  84     g_return_if_fail(widget != NULL);
  85
  86     if (!GTK_WIDGET_HAS_GRAB(widget) && GTK_WIDGET_IS_SENSITIVE(widget)) {
  87         GTK_WIDGET_SET_FLAGS(widget, GTK_HAS_GRAB);
  88
  89         group = gtk_main_get_window_group(widget);
  90
  91         g_object_ref(widget);
  92         group->grabs = g_slist_prepend(group->grabs, widget);
  93
  94 /*      gtk_grab_notify (group, widget, FALSE); */
  95     }
  96 }
  97
  98 void gtk_grab_remove(GtkWidget * widget)
  99 {
 100     GtkWindowGroup *group;
 101
 102     g_return_if_fail(widget != NULL);
 103
 104     if (GTK_WIDGET_HAS_GRAB(widget)) {
 105         GTK_WIDGET_UNSET_FLAGS(widget, GTK_HAS_GRAB);
 106
 107         group = gtk_main_get_window_group(widget);
 108         group->grabs = g_slist_remove(group->grabs, widget);
 109
 110         g_object_unref(widget);
 111
 112 /*      gtk_grab_notify (group, widget, TRUE); */
 113     }
 114 }