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gst/gstparent.*: Fix build.
Original commit message from CVS: * gst/gstparent.c: * gst/gstparent.h: Fix build.
This commit is contained in:
Ronald S. Bultje
parent
4c675ee636
commit
409eda442d
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@ -1,3 +1,9 @@
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2005-04-09 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
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* gst/gstparent.c:
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* gst/gstparent.h:
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Fix build.
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2005-04-05 Tim-Philipp Müller <tim at centricular dot net>
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* examples/helloworld/helloworld.c: (error_cb), (main):
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247
gst/gstparent.c
247
gst/gstparent.c
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@ -1,247 +0,0 @@
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/* GStreamer
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* Copyright (C) 2005 Stefan Kost <ensonic@users.sf.net>
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*
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* gstparent.c: interface for multi child elements
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "gst_private.h"
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#include "gstparent.h"
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/* Parent signals */
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/*
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enum
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{
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CHILD_ADDED,
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CHILD_REMOVED,
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LAST_SIGNAL
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};
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static guint signals[LAST_SIGNAL] = { 0 };
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*/
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/**
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* gst_parent_get_child_by_name:
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* @parent: the parent object to get the child from
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* @name: the childs name
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*
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* Looks up a child element by the given name.
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*
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* Implementors can e.g. use #GstObject together with gst_object_set_name() or
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* GObject with g_object_set_data() to identify objects.
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*
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* Returns: the child object or %NULL if not found
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*/
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GObject *
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gst_parent_get_child_by_name (GstParent * parent, const gchar * name)
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{
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return (GST_PARENT_GET_CLASS (parent)->get_child_by_name (parent, name));
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}
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/**
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* gst_parent_get_child_by_index:
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* @parent: the parent object to get the child from
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* @index: the childs position in the child list
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*
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* Fetches a child by its number.
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*
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* Returns: the child object or %NULL if not found (index too high)
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*/
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GObject *
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gst_parent_get_child_by_index (GstParent * parent, guint index)
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{
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return (GST_PARENT_GET_CLASS (parent)->get_child_by_index (parent, index));
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}
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/**
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* gst_parent_get_children_count:
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* @parent: the parent object
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*
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* Gets the number of child objects this parent contains.
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*
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* Returns: the number of child objects
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*/
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guint
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gst_parent_get_children_count (GstParent * parent)
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{
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return (GST_PARENT_GET_CLASS (parent)->get_children_count (parent));
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}
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/**
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* gst_parent_get_valist:
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* @parent: the parent object
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* @first_property_name: name of the first property to get
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* @var_args: return location for the first property, followed optionally by more name/return location pairs, followed by NULL
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* Gets properties of the parents child objects.
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*/
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void
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gst_parent_get_valist (GstParent * parent, const gchar * first_property_name,
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va_list var_args)
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{
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GObject *child;
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const gchar *name;
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gchar *child_name, *prop_name;
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g_return_if_fail (G_IS_OBJECT (parent));
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g_object_ref (parent);
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name = first_property_name;
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// iterate of pairs
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while (name) {
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// split on '::' into child_name, prop_name
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prop_name = strstr (name, "::");
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if (prop_name) {
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child_name = g_strndup (name, ((gulong) prop_name - (gulong) name));
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prop_name += 2;
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// get the child by name
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child = gst_parent_get_child_by_name (parent, child_name);
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g_object_get (child, prop_name, var_args, NULL);
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} else {
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GST_WARNING ("property name '%s' has no '::' separator", name);
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break;
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}
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name = va_arg (var_args, gchar *);
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}
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g_object_unref (parent);
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}
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/**
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* gst_parent_get:
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* @parent: the parent object
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* @first_property_name: name of the first property to get
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* @...: return location for the first property, followed optionally by more name/return location pairs, followed by NULL
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* Gets properties of the parents child objects.
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*/
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void
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gst_parent_get (GstParent * parent, const gchar * first_property_name, ...)
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{
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va_list var_args;
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g_return_if_fail (G_IS_OBJECT (parent));
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va_start (var_args, first_property_name);
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gst_parent_get_valist (parent, first_property_name, var_args);
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va_end (var_args);
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}
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/**
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* gst_parent_set_valist:
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* @parent: the parent object
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* @first_property_name: name of the first property to set
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* @var_args: value for the first property, followed optionally by more name/value pairs, followed by NULL
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* Sets properties of the parents child objects.
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*/
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void
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gst_parent_set_valist (GstParent * parent, const gchar * first_property_name,
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va_list var_args)
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{
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GObject *child;
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const gchar *name;
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gchar *child_name, *prop_name;
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g_return_if_fail (G_IS_OBJECT (parent));
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g_object_ref (parent);
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name = first_property_name;
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// iterate of pairs
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while (name) {
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// split on '::' into child_name, prop_name
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prop_name = strstr (name, "::");
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if (prop_name) {
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child_name = g_strndup (name, ((gulong) prop_name - (gulong) name));
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prop_name += 2;
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// get the child by name
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child = gst_parent_get_child_by_name (parent, child_name);
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g_object_set (child, prop_name, var_args, NULL);
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} else {
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GST_WARNING ("property name '%s' has no '::' separator", name);
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break;
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}
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name = va_arg (var_args, gchar *);
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}
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g_object_unref (parent);
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}
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/**
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* gst_parent_set:
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* @parent: the parent object
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* @first_property_name: name of the first property to set
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* @...: value for the first property, followed optionally by more name/value pairs, followed by NULL
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* Sets properties of the parents child objects.
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*/
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void
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gst_parent_set (GstParent * parent, const gchar * first_property_name, ...)
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{
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va_list var_args;
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g_return_if_fail (G_IS_OBJECT (parent));
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va_start (var_args, first_property_name);
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gst_parent_set_valist (parent, first_property_name, var_args);
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va_end (var_args);
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}
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static void
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gst_parent_base_init (gpointer g_class)
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{
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static gboolean initialized = FALSE;
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if (!initialized) {
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/* create interface signals and properties here. */
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/*
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signals[CHILD_ADDED] =
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g_signal_new ("child-added", G_TYPE_FROM_CLASS (g_class),
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G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GstParentClass, child_added), NULL,
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NULL, gst_marshal_VOID__OBJECT, G_TYPE_NONE, 1, G_TYPE_OBJECT);
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signals[CHILD_REMOVED] =
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g_signal_new ("child-removed", G_TYPE_FROM_CLASS (g_class),
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G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GstParentClass, child_removed), NULL,
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NULL, gst_marshal_VOID__OBJECT, G_TYPE_NONE, 1, G_TYPE_OBJECT);
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*/
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initialized = TRUE;
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}
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}
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GType
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gst_parent_get_type (void)
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{
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static GType type = 0;
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if (type == 0) {
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static const GTypeInfo info = {
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sizeof (GstParentClass),
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gst_parent_base_init, /* base_init */
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NULL, /* base_finalize */
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NULL, /* class_init */
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NULL, /* class_finalize */
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NULL, /* class_data */
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0,
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0, /* n_preallocs */
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NULL /* instance_init */
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};
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type = g_type_register_static (G_TYPE_INTERFACE, "GstParent", &info, 0);
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}
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return type;
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}
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@ -1,65 +0,0 @@
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/* GStreamer
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* Copyright (C) 2005 Stefan Kost <ensonic@users.sf.net>
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*
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* gstparent.h: interface header for multi child elements
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_PARENT_H__
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#define __GST_PARENT_H__
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#include <glib-object.h>
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G_BEGIN_DECLS
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#define GST_TYPE_PARENT (gst_parent_get_type())
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#define GST_PARENT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_PARENT, GstParent))
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#define GST_PARENT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_PARENT, GstParentClass))
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#define GST_IS_PARENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_PARENT))
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#define GST_IS_PARENT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_PARENT))
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#define GST_PARENT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GST_TYPE_PARENT, GstParentClass))
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typedef struct _GstParent GstParent; /* dummy object */
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typedef struct _GstParentClass GstParentClass;
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struct _GstParentClass {
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GTypeInterface parent;
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// methods
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GObject * (* get_child_by_name) (GstParent *parent, const gchar *name);
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GObject * (* get_child_by_index) (GstParent *parent, guint index);
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guint (* get_children_count) (GstParent *parent);
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// signals
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void (* child_added) (GstParent *parent, GObject *child);
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void (* child_removed) (GstParent *parent, GObject *child);
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};
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GType gst_parent_get_type(void);
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GObject * gst_parent_get_child_by_name (GstParent *parent, const gchar *name);
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GObject * gst_parent_get_child_by_index (GstParent *parent, guint index);
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guint gst_parent_get_children_count(GstParent *parent);
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void gst_parent_get_valist (GstParent *parent, const gchar *first_property_name, va_list var_args);
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void gst_parent_get (GstParent *parent, const gchar *first_property_name, ...);
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void gst_parent_set_valist (GstParent *parent, const gchar *first_property_name, va_list var_args);
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void gst_parent_set (GstParent *parent, const gchar *first_property_name, ...);
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G_END_DECLS
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#endif /* __GST_PARENT_H__ */
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