2 * empathy-gst-gtk-widget.c - Source for EmpathyVideoWidget
3 * Copyright (C) 2008 Collabora Ltd.
4 * @author Sjoerd Simons <sjoerd.simons@collabora.co.uk>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
26 #include <gst/interfaces/xoverlay.h>
27 #include <gst/farsight/fs-element-added-notifier.h>
29 #include "empathy-video-widget.h"
31 G_DEFINE_TYPE(EmpathyVideoWidget, empathy_video_widget,
32 GTK_TYPE_DRAWING_AREA)
34 static void empathy_video_widget_element_added_cb (
35 FsElementAddedNotifier *notifier, GstBin *bin, GstElement *element,
36 EmpathyVideoWidget *self);
38 static void empathy_video_widget_sync_message_cb (
39 GstBus *bus, GstMessage *message, EmpathyVideoWidget *self);
48 static guint signals[LAST_SIGNAL] = {0};
58 /* private structure */
59 typedef struct _EmpathyVideoWidgetPriv EmpathyVideoWidgetPriv;
61 struct _EmpathyVideoWidgetPriv
63 gboolean dispose_has_run;
65 GstElement *videosink;
68 FsElementAddedNotifier *notifier;
73 #define GET_PRIV(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), \
74 EMPATHY_TYPE_GST_GTK_WIDGET, EmpathyVideoWidgetPriv))
77 empathy_video_widget_init (EmpathyVideoWidget *obj)
79 EmpathyVideoWidgetPriv *priv = GET_PRIV (obj);
82 priv->notifier = fs_element_added_notifier_new ();
83 g_signal_connect (priv->notifier, "element-added",
84 G_CALLBACK (empathy_video_widget_element_added_cb),
87 if (gdk_color_parse ("Black", &black))
88 gtk_widget_modify_bg (GTK_WIDGET (obj), GTK_STATE_NORMAL,
91 GTK_WIDGET_UNSET_FLAGS (GTK_WIDGET (obj), GTK_DOUBLE_BUFFERED);
95 empathy_video_widget_constructed (GObject *object)
97 EmpathyVideoWidgetPriv *priv = GET_PRIV (object);
99 priv->videosink = gst_element_factory_make ("gconfvideosink", NULL);
100 gst_object_ref (priv->videosink);
101 gst_object_sink (priv->videosink);
103 priv->sink_pad = gst_element_get_static_pad (priv->videosink, "sink");
105 fs_element_added_notifier_add (priv->notifier, GST_BIN (priv->videosink));
106 gst_bus_enable_sync_message_emission (priv->bus);
108 g_signal_connect (priv->bus, "sync-message",
109 G_CALLBACK (empathy_video_widget_sync_message_cb), object);
111 gtk_widget_set_size_request (GTK_WIDGET (object), priv->min_width,
115 static void empathy_video_widget_dispose (GObject *object);
116 static void empathy_video_widget_finalize (GObject *object);
117 static gboolean empathy_video_widget_expose_event (GtkWidget *widget,
118 GdkEventExpose *event);
121 empathy_video_widget_set_property (GObject *object,
122 guint property_id, const GValue *value, GParamSpec *pspec)
124 EmpathyVideoWidgetPriv *priv = GET_PRIV (object);
129 priv->bus = g_value_dup_object (value);
132 priv->min_width = g_value_get_int (value);
134 case PROP_MIN_HEIGHT:
135 priv->min_height = g_value_get_int (value);
138 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
143 empathy_video_widget_get_property (GObject *object,
144 guint property_id, GValue *value, GParamSpec *pspec)
146 EmpathyVideoWidgetPriv *priv = GET_PRIV (object);
150 case PROP_GST_ELEMENT:
151 g_value_set_object (value, priv->videosink);
154 g_value_set_object (value, priv->bus);
157 g_value_set_int (value, priv->min_width);
159 case PROP_MIN_HEIGHT:
160 g_value_set_int (value, priv->min_height);
163 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
169 empathy_video_widget_class_init (
170 EmpathyVideoWidgetClass *empathy_video_widget_class)
172 GObjectClass *object_class = G_OBJECT_CLASS (empathy_video_widget_class);
173 GtkWidgetClass *widget_class =
174 GTK_WIDGET_CLASS (empathy_video_widget_class);
175 GParamSpec *param_spec;
177 g_type_class_add_private (empathy_video_widget_class,
178 sizeof (EmpathyVideoWidgetPriv));
180 object_class->dispose = empathy_video_widget_dispose;
181 object_class->finalize = empathy_video_widget_finalize;
182 object_class->constructed = empathy_video_widget_constructed;
184 object_class->set_property = empathy_video_widget_set_property;
185 object_class->get_property = empathy_video_widget_get_property;
187 widget_class->expose_event = empathy_video_widget_expose_event;
189 param_spec = g_param_spec_object ("gst-element",
190 "gst-element", "The underlaying gstreamer element",
192 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
193 g_object_class_install_property (object_class, PROP_GST_ELEMENT, param_spec);
195 param_spec = g_param_spec_object ("gst-bus",
197 "The toplevel bus from the pipeline in which this bin will be added",
199 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
200 g_object_class_install_property (object_class, PROP_GST_BUS, param_spec);
202 param_spec = g_param_spec_int ("min-width",
204 "Minimal width of the widget",
206 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
207 g_object_class_install_property (object_class, PROP_MIN_WIDTH, param_spec);
209 param_spec = g_param_spec_int ("min-height",
211 "Minimal height of the widget",
213 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
214 g_object_class_install_property (object_class, PROP_MIN_HEIGHT, param_spec);
219 empathy_video_widget_dispose (GObject *object)
221 EmpathyVideoWidget *self = EMPATHY_VIDEO_WIDGET (object);
222 EmpathyVideoWidgetPriv *priv = GET_PRIV (self);
224 if (priv->dispose_has_run)
227 priv->dispose_has_run = TRUE;
229 if (priv->bus != NULL)
230 g_object_unref (priv->bus);
234 if (priv->videosink != NULL)
235 g_object_unref (priv->videosink);
237 priv->videosink = NULL;
240 /* release any references held by the object here */
242 if (G_OBJECT_CLASS (empathy_video_widget_parent_class)->dispose)
243 G_OBJECT_CLASS (empathy_video_widget_parent_class)->dispose (object);
247 empathy_video_widget_finalize (GObject *object)
249 //EmpathyVideoWidget *self = EMPATHY_VIDEO_WIDGET (object);
250 //EmpathyVideoWidgetPriv *priv = GET_PRIV (self);
252 /* free any data held directly by the object here */
254 G_OBJECT_CLASS (empathy_video_widget_parent_class)->finalize (object);
258 empathy_video_widget_element_added_cb (FsElementAddedNotifier *notifier,
259 GstBin *bin, GstElement *element, EmpathyVideoWidget *self)
261 EmpathyVideoWidgetPriv *priv = GET_PRIV (self);
263 if (priv->overlay == NULL && GST_IS_X_OVERLAY (element))
265 priv->overlay = element;
266 gst_x_overlay_expose (GST_X_OVERLAY (priv->overlay));
269 if (g_object_class_find_property (
270 G_OBJECT_GET_CLASS (element), "force-aspect-ratio"))
272 g_object_set (G_OBJECT (element), "force-aspect-ratio", TRUE, NULL);
277 empathy_video_widget_sync_message_cb (GstBus *bus, GstMessage *message,
278 EmpathyVideoWidget *self)
280 EmpathyVideoWidgetPriv *priv = GET_PRIV (self);
281 const GstStructure *s;
283 if (GST_MESSAGE_TYPE (message) != GST_MESSAGE_ELEMENT)
286 if (GST_MESSAGE_SRC (message) != (GstObject *) priv->overlay)
289 s = gst_message_get_structure (message);
291 if (gst_structure_has_name (s, "prepare-xwindow-id"))
293 gst_x_overlay_set_xwindow_id (GST_X_OVERLAY (priv->overlay),
294 GDK_WINDOW_XID (GTK_WIDGET (self)->window));
299 empathy_video_widget_expose_event (GtkWidget *widget, GdkEventExpose *event)
301 EmpathyVideoWidget *self = EMPATHY_VIDEO_WIDGET (widget);
302 EmpathyVideoWidgetPriv *priv = GET_PRIV (self);
304 if (event != NULL && event->count > 0)
307 if (priv->overlay == NULL)
310 gst_x_overlay_set_xwindow_id (GST_X_OVERLAY (priv->overlay),
311 GDK_WINDOW_XID (widget->window));
313 gst_x_overlay_expose (GST_X_OVERLAY (priv->overlay));
319 empathy_video_widget_new_with_size (GstBus *bus, gint width, gint height)
321 g_return_val_if_fail (bus != NULL, NULL);
323 return GTK_WIDGET (g_object_new (EMPATHY_TYPE_GST_GTK_WIDGET,
326 "min-height", height,
331 empathy_video_widget_new (GstBus *bus)
333 g_return_val_if_fail (bus != NULL, NULL);
335 return GTK_WIDGET (g_object_new (EMPATHY_TYPE_GST_GTK_WIDGET,
341 empathy_video_widget_get_sink (EmpathyVideoWidget *widget)
343 EmpathyVideoWidgetPriv *priv = GET_PRIV (widget);
345 return priv->sink_pad;
349 empathy_video_widget_get_element (EmpathyVideoWidget *widget)
351 EmpathyVideoWidgetPriv *priv = GET_PRIV (widget);
353 return priv->videosink;