gstreamer/editor/gsteditor.c

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/* Gnome-Streamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <gtk/gtk.h>
#include <gnome.h>
#include <gst/gst.h>
#include "gsteditor.h"
/* signals and args */
enum {
LAST_SIGNAL
};
enum {
ARG_0,
ARG_NAME,
};
static void gst_editor_class_init(GstEditorClass *klass);
static void gst_editor_init(GstEditor *editor);
static void gst_editor_set_arg(GtkObject *object,GtkArg *arg,guint id);
static void gst_editor_get_arg(GtkObject *object,GtkArg *arg,guint id);
static GtkFrame *parent_class = NULL;
GtkType gst_editor_get_type(void) {
static GtkType editor_type = 0;
if (!editor_type) {
static const GtkTypeInfo editor_info = {
"GstEditor",
sizeof(GstEditor),
sizeof(GstEditorClass),
(GtkClassInitFunc)gst_editor_class_init,
(GtkObjectInitFunc)gst_editor_init,
NULL,
NULL,
(GtkClassInitFunc)NULL,
};
editor_type = gtk_type_unique(gtk_frame_get_type(),&editor_info);
}
return editor_type;
}
static void gst_editor_class_init(GstEditorClass *klass) {
GtkObjectClass *object_class;
object_class = (GtkObjectClass*)klass;
parent_class = gtk_type_class(gtk_frame_get_type());
gtk_object_add_arg_type("GstEditor::name",GTK_TYPE_STRING,
GTK_ARG_READWRITE,ARG_NAME);
object_class->set_arg = gst_editor_set_arg;
object_class->get_arg = gst_editor_get_arg;
}
static void gst_editor_init(GstEditor *editor) {
/* create the pipeline */
editor->pipeline = gst_pipeline_new("pipeline");
g_return_if_fail(editor->pipeline != NULL);
/* create the editor canvas */
editor->canvas = gst_editor_canvas_new(GST_BIN(editor->pipeline),NULL);
/* create the scrolled window */
editor->scrollwindow = gtk_scrolled_window_new(NULL,NULL);
/* get the canvas widget */
editor->canvaswidget = gst_editor_canvas_get_canvas(editor->canvas);
/* add the canvas to the scrolled window */
gtk_container_add(GTK_CONTAINER(editor->scrollwindow),
editor->canvaswidget);
/* add the scrolled window to the canvas */
gtk_container_add(GTK_CONTAINER(editor),editor->scrollwindow);
}
/**
* gst_editor_new:
* name: name of editor frame
*
* Creates a new GstEditor composite widget with the given name.
*
* Returns: Freshly created GstEditor widget.
*/
GstEditor *gst_editor_new(gchar *name) {
GstEditor *editor;
editor = gtk_type_new(gst_editor_get_type());
gtk_object_set(GTK_OBJECT(editor),"name",name,NULL);
return editor;
}
static void gst_editor_set_arg(GtkObject *object,GtkArg *arg,guint id) {
GstEditor *editor = GST_EDITOR(object);
switch (id) {
case ARG_NAME:
gtk_object_set(GTK_OBJECT(editor),"label",GTK_VALUE_STRING(*arg),NULL);
gst_element_set_name(GST_OBJECT(editor->pipeline),
GTK_VALUE_STRING(*arg));
break;
default:
g_warning("gsteditor: unknown arg!\n");
break;
}
}
static void gst_editor_get_arg(GtkObject *object,GtkArg *arg,guint id) {
GstEditor *editor = GST_EDITOR(object);
switch (id) {
case ARG_NAME:
GTK_VALUE_STRING(*arg) =
gst_element_get_name(GST_OBJECT(editor->pipeline));
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}