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30eb9e4474
We now let full control to subclasses so we do not need it anymore.
161 lines
5.8 KiB
C
161 lines
5.8 KiB
C
/* GStreamer Editing Services
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* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
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* 2009 Nokia Corporation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef _GES_CONTAINER
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#define _GES_CONTAINER
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#include <glib-object.h>
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#include <gst/gst.h>
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#include <ges/ges-timeline-element.h>
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#include <ges/ges-types.h>
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#include <ges/ges-track.h>
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G_BEGIN_DECLS
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#define GES_TYPE_CONTAINER ges_container_get_type()
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#define GES_CONTAINER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GES_TYPE_CONTAINER, GESContainer))
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#define GES_CONTAINER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GES_TYPE_CONTAINER, GESContainerClass))
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#define GES_IS_CONTAINER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GES_TYPE_CONTAINER))
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#define GES_IS_CONTAINER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GES_TYPE_CONTAINER))
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#define GES_CONTAINER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GES_TYPE_CONTAINER, GESContainerClass))
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typedef struct _GESContainerPrivate GESContainerPrivate;
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/* To be used by sublcasses only */
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typedef enum
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{
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GES_CHILDREN_UPDATE,
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GES_CHILDREN_IGNORE_NOTIFIES,
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GES_CHILDREN_UPDATE_OFFSETS,
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} GESChildrenControlMode;
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/**
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* GES_CONTAINER_HEIGHT:
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* @obj: a #GESContainer
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*
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* The span of priorities this object occupies.
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*/
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#define GES_CONTAINER_HEIGHT(obj) (((GESContainer*)obj)->height)
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/**
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* GES_CONTAINER_CHILDREN:
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* @obj: a #GESContainer
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*
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* A #GList containing the children of @object
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*/
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#define GES_CONTAINER_CHILDREN(obj) (((GESContainer*)obj)->children)
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/**
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* GESContainer:
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* @children: (element-type GES.TimelineElement): A list of TimelineElement
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* controlled by this Container. NOTE: Do not modify.
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* @height: The span of priorities this container occupies
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*
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*
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* The #GESContainer base class.
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*/
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struct _GESContainer
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{
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GESTimelineElement parent;
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/*< public > */
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/*< readonly >*/
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GList *children;
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/* We don't add those properties to the priv struct for optimization and code
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* readability purposes */
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guint32 height; /* the span of priorities this object needs */
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/* <protected> */
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GESChildrenControlMode children_control_mode;
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/*< readonly >*/
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GESTimelineElement *initiated_move;
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/*< private >*/
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GESContainerPrivate *priv;
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/* Padding for API extension */
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gpointer _ges_reserved[GES_PADDING_LARGE];
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};
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/**
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* GESContainerClass:
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* @child_added: Virtual method that is called right after a #GESTimelineElement is added
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* @child_removed: Virtual method that is called right after a #GESTimelineElement is removed
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* @remove_child: Virtual method to remove a child
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* @add_child: Virtual method to add a child
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* @ungroup: Ungroups the #GESTimelineElement contained in this #GESContainer, creating new
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* @group: Groups the #GESContainers together
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* #GESContainer containing those #GESTimelineElement apropriately.
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*/
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struct _GESContainerClass
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{
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/*< private > */
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GESTimelineElementClass parent_class;
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/*< public > */
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/* signals */
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void (*child_added) (GESContainer *container, GESTimelineElement *element);
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void (*child_removed) (GESContainer *container, GESTimelineElement *element);
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gboolean (*add_child) (GESContainer *container, GESTimelineElement *element);
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gboolean (*remove_child) (GESContainer *container, GESTimelineElement *element);
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GList* (*ungroup) (GESContainer *container, gboolean recursive);
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GESContainer * (*group) (GList *containers);
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gboolean (*edit) (GESContainer * container,
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GList * layers, gint new_layer_priority,
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GESEditMode mode,
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GESEdge edge,
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guint64 position);
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/*< private >*/
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guint grouping_priority;
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/* Padding for API extension */
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gpointer _ges_reserved[GES_PADDING_LARGE];
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};
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GType ges_container_get_type (void);
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/* Children handling */
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GList* ges_container_get_children (GESContainer *container);
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gboolean ges_container_add (GESContainer *container, GESTimelineElement *child);
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gboolean ges_container_remove (GESContainer *container, GESTimelineElement *child);
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GList * ges_container_ungroup (GESContainer * container, gboolean recursive);
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GESContainer *ges_container_group (GList *containers);
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/* To be used by subclasses only */
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void _ges_container_set_height (GESContainer * container,
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guint32 height);
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gboolean ges_container_edit (GESContainer * container,
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GList * layers, gint new_layer_priority,
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GESEditMode mode,
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GESEdge edge,
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guint64 position);
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gint _ges_container_get_priority_offset (GESContainer * container,
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GESTimelineElement *elem);
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void _ges_container_set_priority_offset (GESContainer * container,
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GESTimelineElement *elem,
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gint32 priority_offset);
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G_END_DECLS
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#endif /* _GES_CONTAINER */
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