src/turbulence/layout-manager.vala

   1 /*
   2  *  turbulence/layout-manager.vala
   3  *
   4  *  Copyright (c) 2008 Patrick Walton <pcwalton@uchicago.edu>
   5  */
   6
   7 using GLib;
   8
   9 namespace Turbulence {
  10     public interface ILayoutManager {
  11         public abstract ActorModel model { get; set; }
  12
  13         /*
  14          *  Called when the preferred size of the given model might have
  15          *  changed. The layout manager should flush any cached state it might
  16          *  have relating to the size of that model.
  17          */
  18         public abstract void invalidate_layout();
  19
  20         /*
  21          *  Called when the submodels of the given model have changed in some
  22          *  way. The layout manager is expected to resize the submodels
  23          *  appropriately.
  24          */
  25         public abstract void layout_submodels();
  26
  27         /*
  28          *  Computes and returns the preferred size of the given model.
  29          */
  30         public abstract Size get_preferred_size_of_model(ActorModel model);
  31     }
  32 }
  33