From b3c8d416a4dd8469904fb1fb40fb05e35f6bfd2e Mon Sep 17 00:00:00 2001 From: David Schleef Date: Sat, 27 Sep 2003 03:16:28 +0000 Subject: add navigation interface Original commit message from CVS: add navigation interface --- gst-libs/gst/navigation/Makefile.am | 10 ++++ gst-libs/gst/navigation/navigation.c | 93 ++++++++++++++++++++++++++++++++++++ gst-libs/gst/navigation/navigation.h | 64 +++++++++++++++++++++++++ 3 files changed, 167 insertions(+) create mode 100644 gst-libs/gst/navigation/Makefile.am create mode 100644 gst-libs/gst/navigation/navigation.c create mode 100644 gst-libs/gst/navigation/navigation.h diff --git a/gst-libs/gst/navigation/Makefile.am b/gst-libs/gst/navigation/Makefile.am new file mode 100644 index 000000000..d29c4193b --- /dev/null +++ b/gst-libs/gst/navigation/Makefile.am @@ -0,0 +1,10 @@ +lib_LTLIBRARIES = libgstnavigation.la + +libgstnavigation_la_SOURCES = navigation.c + +libgstnavigationincludedir = $(includedir)/gstreamer-@GST_MAJORMINOR@/gst/navigation +libgstnavigationinclude_HEADERS = navigation.h + +libgstnavigation_la_LIBADD = +libgstnavigation_la_CFLAGS = $(GST_CFLAGS) $(GST_OPT_CFLAGS) +libgstnavigation_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) diff --git a/gst-libs/gst/navigation/navigation.c b/gst-libs/gst/navigation/navigation.c new file mode 100644 index 000000000..4ae996d89 --- /dev/null +++ b/gst-libs/gst/navigation/navigation.c @@ -0,0 +1,93 @@ +/* GStreamer Navigation + * Copyright (C) 2003 Ronald Bultje + * + * navigation.c: navigation design virtual class function wrappers + * + * 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. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include + +static void gst_navigation_class_init (GstNavigationClass *klass); + +GType +gst_navigation_get_type (void) +{ + static GType gst_navigation_type = 0; + + if (!gst_navigation_type) { + static const GTypeInfo gst_navigation_info = { + sizeof (GstNavigationClass), + (GBaseInitFunc) gst_navigation_class_init, + NULL, + NULL, + NULL, + NULL, + 0, + 0, + NULL, + }; + + gst_navigation_type = g_type_register_static (G_TYPE_INTERFACE, + "GstNavigation", + &gst_navigation_info, 0); + g_type_interface_add_prerequisite (gst_navigation_type, + GST_TYPE_INTERFACE); + } + + return gst_navigation_type; +} + +static void +gst_navigation_class_init (GstNavigationClass *klass) +{ + /* default virtual functions */ + klass->send_event = NULL; +} + +void +gst_navigation_send_event (GstNavigation *navigation, GstCaps *caps) +{ + GstNavigationClass *klass = GST_NAVIGATION_GET_CLASS (navigation); + + if (klass->send_event) { + return klass->send_event (navigation, caps); + } +} + +void +gst_navigation_send_key_event (GstNavigation *navigation, const char *key) +{ + gst_navigation_send_event (navigation, GST_CAPS_NEW ("key_event", + "application/x-gst-navigation", + "key", GST_PROPS_STRING (key))); +} + +void +gst_navigation_send_mouse_event (GstNavigation *navigation, double x, + double y) +{ + gst_navigation_send_event (navigation, GST_CAPS_NEW ("mouse_event", + "application/x-gst-navigation", + "pointer_x", GST_PROPS_FLOAT (x), + "pointer_y", GST_PROPS_FLOAT (y))); +} + + diff --git a/gst-libs/gst/navigation/navigation.h b/gst-libs/gst/navigation/navigation.h new file mode 100644 index 000000000..a70583938 --- /dev/null +++ b/gst-libs/gst/navigation/navigation.h @@ -0,0 +1,64 @@ +/* GStreamer Navigation + * Copyright (C) 2003 Ronald Bultje + * Copyright (C) 2003 David A. Schleef + * + * navigation.h: navigation interface design + * + * 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. + */ + +#ifndef __GST_NAVIGATION_H__ +#define __GST_NAVIGATION_H__ + +#include + +G_BEGIN_DECLS + +#define GST_TYPE_NAVIGATION \ + (gst_navigation_get_type ()) +#define GST_NAVIGATION(obj) \ + (GST_INTERFACE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_NAVIGATION, GstNavigation)) +#define GST_NAVIGATION_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_NAVIGATION, GstNavigationClass)) +#define GST_IS_NAVIGATION(obj) \ + (GST_INTERFACE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_NAVIGATION)) +#define GST_IS_NAVIGATION_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_NAVIGATION)) +#define GST_NAVIGATION_GET_CLASS(inst) \ + (G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_NAVIGATION, GstNavigationClass)) + +typedef struct _GstNavigation GstNavigation; + +typedef struct _GstNavigationClass { + GTypeInterface klass; + + /* virtual functions */ + void (*send_event) (GstNavigation *navigation, GstCaps *caps); + +} GstNavigationClass; + +GType gst_navigation_get_type (void); + +/* virtual class function wrappers */ +void gst_navigation_send_event (GstNavigation *navigation, GstCaps *caps); + +void gst_navigation_send_key_event (GstNavigation *navigation, const char *key); +void gst_navigation_send_mouse_event (GstNavigation *navigation, double x, + double y); + +G_END_DECLS + +#endif /* __GST_NAVIGATION_H__ */ -- cgit v1.2.1