47144253e4
Instead of hardcoded knowledge of certain classes in MetaWindowGroup, create a generic interface that all actors can implement to get parts of their regions culled out during redraw, without needing any special knowledge of how to handle a specific actor. The names now are a bit suspect. MetaBackgroundGroup is a simple MetaCullable that knows how to cull children, and MetaWindowGroup is the "toplevel" cullable that computes the initial two regions. A future cleanup here could be to merge MetaWindowGroup / MetaBackgroundGroup so that we only have a generic MetaSimpleCullable, and move the "toplevel" cullability to be a MetaCullableToplevel. https://bugzilla.gnome.org/show_bug.cgi?id=714706
37 lines
1.6 KiB
C
37 lines
1.6 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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#ifndef META_WINDOW_GROUP_H
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#define META_WINDOW_GROUP_H
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#include <clutter/clutter.h>
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#include <meta/screen.h>
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/**
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* MetaWindowGroup:
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*
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* This class is a subclass of ClutterActor with special handling for
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* #MetaCullable when painting children. It uses code similar to
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* meta_cullable_cull_out_children(), but also has additional special
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* cases for the undirected window, and similar.
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*/
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#define META_TYPE_WINDOW_GROUP (meta_window_group_get_type ())
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#define META_WINDOW_GROUP(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_WINDOW_GROUP, MetaWindowGroup))
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#define META_WINDOW_GROUP_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_WINDOW_GROUP, MetaWindowGroupClass))
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#define META_IS_WINDOW_GROUP(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_WINDOW_GROUP))
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#define META_IS_WINDOW_GROUP_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_WINDOW_GROUP))
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#define META_WINDOW_GROUP_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), META_TYPE_WINDOW_GROUP, MetaWindowGroupClass))
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typedef struct _MetaWindowGroup MetaWindowGroup;
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typedef struct _MetaWindowGroupClass MetaWindowGroupClass;
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typedef struct _MetaWindowGroupPrivate MetaWindowGroupPrivate;
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GType meta_window_group_get_type (void);
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ClutterActor *meta_window_group_new (MetaScreen *screen);
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gboolean meta_window_group_actor_is_untransformed (ClutterActor *actor,
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int *x_origin,
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int *y_origin);
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#endif /* META_WINDOW_GROUP_H */
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