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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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51cbf22624
Original commit message from CVS: This is a megapatch with the following changes: - moved the gchar *name to GstObject, removed the ones in GstElement and GstPad. - moved the parent handling completely into GstObject. This cause *all* of the plugins to fail (except those that used gst_pad_get_parent) - rearanged the XML save handling. - GstObject now has a class function save/restore_thyself. - GstObject has a generic method gst_object_save_thyself, this makes it possible to fire a signal wehever a new object is loaded. This is needed so we can add XML save hooks. - GstXML API has changed slightly. You now have to create a GstXML object first before you can actually load something. This makes it possible to attach a signal to GstXML whenever an object is loaded. I'm not sure we will keep this interface. - GstObject can now print the path_string without knowing about the GstPad and GstElement types. - Added gst_bin_get_by_name_recurse_up to lookup an element in the current element hierarchy. - added XML namespaces to the saved pipelines the namespace is: http://gstreamer.net/gst-core/1.0/ namespaces are needed to distinguish user generated XML from the core XML. Note that the plugins still contain a macro GST_OBJECT_PARENT that will be replaced with gst_pad_get_parent shortly.
217 lines
5.7 KiB
C
217 lines
5.7 KiB
C
/* Gnome-Streamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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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 <gnome.h>
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#include <gst/gst.h>
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#include <glade/glade.h>
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#include "gsteditorproject.h"
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#include "gsteditorpalette.h"
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#include "gsteditorproperty.h"
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#include "gsteditorimage.h"
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/* class functions */
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static void gst_editor_project_class_init (GstEditorProjectClass *klass);
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static void gst_editor_project_init (GstEditorProject *project);
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static void gst_editor_project_set_arg (GtkObject *object,GtkArg *arg,guint id);
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static void gst_editor_project_get_arg (GtkObject *object,GtkArg *arg,guint id);
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enum {
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ARG_0,
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};
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enum {
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ELEMENT_ADDED,
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ELEMENT_REMOVED,
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ELEMENT_CHANGED,
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LAST_SIGNAL
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};
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static GtkObjectClass *parent_class;
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static guint gst_editor_project_signals[LAST_SIGNAL] = { 0 };
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GtkType gst_editor_project_get_type (void)
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{
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static GtkType project_type = 0;
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if (!project_type) {
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static const GtkTypeInfo project_info = {
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"GstEditorProject",
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sizeof(GstEditorProject),
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sizeof(GstEditorProjectClass),
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(GtkClassInitFunc)gst_editor_project_class_init,
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(GtkObjectInitFunc)gst_editor_project_init,
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NULL,
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NULL,
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(GtkClassInitFunc)NULL,
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};
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project_type = gtk_type_unique(gtk_object_get_type(),&project_info);
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}
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return project_type;
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}
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static void
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gst_editor_project_class_init (GstEditorProjectClass *klass)
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{
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GtkObjectClass *object_class;
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object_class = (GtkObjectClass*)klass;
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parent_class = gtk_type_class(gtk_object_get_type());
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gst_editor_project_signals[ELEMENT_ADDED] =
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gtk_signal_new("element_added",GTK_RUN_FIRST,object_class->type,
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GTK_SIGNAL_OFFSET(GstEditorProjectClass,element_added),
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gtk_marshal_NONE__POINTER,GTK_TYPE_NONE,1,
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GST_TYPE_ELEMENT);
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gst_editor_project_signals[ELEMENT_REMOVED] =
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gtk_signal_new("element_removed",GTK_RUN_FIRST,object_class->type,
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GTK_SIGNAL_OFFSET(GstEditorProjectClass,element_removed),
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gtk_marshal_NONE__POINTER,GTK_TYPE_NONE,1,
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GST_TYPE_ELEMENT);
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gst_editor_project_signals[ELEMENT_CHANGED] =
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gtk_signal_new("element_changed",GTK_RUN_FIRST,object_class->type,
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GTK_SIGNAL_OFFSET(GstEditorProjectClass,element_changed),
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gtk_marshal_NONE__POINTER,GTK_TYPE_NONE,1,
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GST_TYPE_ELEMENT);
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gtk_object_class_add_signals(object_class,gst_editor_project_signals,LAST_SIGNAL);
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object_class->set_arg = gst_editor_project_set_arg;
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object_class->get_arg = gst_editor_project_get_arg;
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}
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static void
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gst_editor_project_init (GstEditorProject *project)
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{
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project->toplevelelements = NULL;
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}
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GstEditorProject*
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gst_editor_project_new (void)
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{
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GstEditorProject *editorproject;
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editorproject = GST_EDITOR_PROJECT(gtk_type_new(GST_TYPE_EDITOR_PROJECT));
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return editorproject;
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}
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GstEditorProject *
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gst_editor_project_new_from_file (const guchar *fname)
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{
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GstEditorProject *editorproject;
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GstXML *xml;
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GList *elements;
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g_return_val_if_fail (fname != NULL, NULL);
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editorproject = gst_editor_project_new();
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xml = gst_xml_new ();
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gst_xml_parse_file (xml, fname, NULL);
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elements = gst_xml_get_topelements(xml);
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while (elements) {
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GstElement *element = (GstElement *) elements->data;
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gst_editor_project_add_toplevel_element (editorproject, element);
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elements = g_list_next (elements);
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}
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return editorproject;
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}
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void
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gst_editor_project_load (GstEditorProject *project, const guchar *fname)
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{
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}
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void
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gst_editor_project_save_as (GstEditorProject *project, const guchar *fname)
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{
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GList *elements;
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g_return_if_fail (fname != NULL);
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g_return_if_fail (project != NULL);
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elements = project->toplevelelements;
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while (elements) {
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GstElement *element = (GstElement *) elements->data;
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xmlSaveFile (fname, gst_xml_write (element));
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elements = g_list_next (elements);
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}
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}
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void
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gst_editor_project_add_toplevel_element (GstEditorProject *project,
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GstElement *element)
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{
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g_return_if_fail(project != NULL);
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g_return_if_fail(GST_IS_EDITOR_PROJECT(project));
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g_return_if_fail(element != NULL);
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g_return_if_fail(GST_IS_ELEMENT(element));
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project->toplevelelements = g_list_append(project->toplevelelements, element);
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gst_element_set_name(element, "new_element");
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gtk_signal_emit(GTK_OBJECT(project),gst_editor_project_signals[ELEMENT_ADDED], element);
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}
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static void
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gst_editor_project_set_arg (GtkObject *object, GtkArg *arg, guint id)
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{
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GstEditorProject *project;
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/* get the major types of this object */
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project = GST_EDITOR_PROJECT(object);
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switch (id) {
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default:
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g_warning("gsteditorproject: unknown arg!");
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break;
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}
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}
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static void
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gst_editor_project_get_arg (GtkObject *object, GtkArg *arg, guint id)
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{
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GstEditorProject *project;
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/* get the major types of this object */
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project = GST_EDITOR_PROJECT(object);
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switch (id) {
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default:
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arg->type = GTK_TYPE_INVALID;
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break;
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}
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}
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