gtk2.c
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上传日期:2009-03-27
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文件大小:6k
- /*****************************************************************************
- * gtk2.c : Gtk2 plugin for vlc
- *****************************************************************************
- * Copyright (C) 2003 VideoLAN
- * $Id: gtk2.c 6961 2004-03-05 17:34:23Z sam $
- *
- * Authors: Samuel Hocevar <sam@zoy.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- /*****************************************************************************
- * Preamble
- *****************************************************************************/
- #include <stdlib.h> /* malloc(), free() */
- #include <errno.h> /* ENOMEM */
- #include <string.h> /* strerror() */
- #include <stdio.h>
- #include <vlc/vlc.h>
- #include <vlc/intf.h>
- #include <gtk/gtk.h>
- #include "gtk2_callbacks.h"
- #include "gtk2_interface.h"
- #include "gtk2_support.h"
- /*****************************************************************************
- * Local prototypes.
- *****************************************************************************/
- static int Open ( vlc_object_t * );
- static void Close ( vlc_object_t * );
- static void Run ( intf_thread_t * );
- static int Manage ( intf_thread_t * );
- /*****************************************************************************
- * Module descriptor
- *****************************************************************************/
- vlc_module_begin();
- int i = getenv( "DISPLAY" ) == NULL ? 15 : 95;
- set_description( _("Gtk2 interface") );
- set_capability( "interface", i );
- set_callbacks( Open, Close );
- set_program( "gvlc" );
- vlc_module_end();
- /*****************************************************************************
- * intf_sys_t
- *****************************************************************************/
- struct intf_sys_t
- {
- module_t *p_gui_helper;
- GtkWidget *p_window;
- };
- /*****************************************************************************
- * Open: initialize and create window
- *****************************************************************************/
- static int Open( vlc_object_t *p_this )
- {
- intf_thread_t *p_intf = (intf_thread_t *)p_this;
- /* Allocate instance and initialize some members */
- p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
- if( p_intf->p_sys == NULL )
- {
- msg_Err( p_intf, "out of memory" );
- return VLC_ENOMEM;
- }
- #ifdef NEED_GTK2_MAIN
- p_intf->p_sys->p_gui_helper =
- module_Need( p_this, "gui-helper", "gtk2", VLC_TRUE );
- if( p_intf->p_sys->p_gui_helper == NULL )
- {
- free( p_intf->p_sys );
- return VLC_ENOMOD;
- }
- #endif
- p_intf->pf_run = Run;
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Close: destroy interface window
- *****************************************************************************/
- static void Close( vlc_object_t *p_this )
- {
- intf_thread_t *p_intf = (intf_thread_t *)p_this;
- #ifdef NEED_GTK2_MAIN
- module_Unneed( p_intf, p_intf->p_sys->p_gui_helper );
- #endif
- /* Destroy structure */
- free( p_intf->p_sys );
- }
- /*****************************************************************************
- * Run: Gtk2 thread
- *****************************************************************************
- * this part of the interface is in a separate thread so that we can call
- * gtk_main() from within it without annoying the rest of the program.
- *****************************************************************************/
- static void Run( intf_thread_t *p_intf )
- {
- #ifdef NEED_GTK2_MAIN
- gdk_threads_enter();
- #else
- /* gtk_init needs to know the command line. We don't care, so we
- * give it an empty one */
- char *p_args[] = { "", NULL };
- char **pp_args = p_args;
- int i_args = 1;
- int i_dummy;
- gtk_set_locale();
- gtk_init( &i_args, &pp_args );
- #endif
- /* Create some useful widgets that will certainly be used */
- p_intf->p_sys->p_window = create_window1();
- /* Set the title of the main window */
- gtk_window_set_title( GTK_WINDOW(p_intf->p_sys->p_window),
- VOUT_TITLE " (Gtk2 interface)");
- /* Show the control window */
- gtk_widget_show( p_intf->p_sys->p_window );
- #ifdef NEED_GTK2_MAIN
- while( !p_intf->b_die )
- {
- Manage( p_intf );
- /* Sleep to avoid using all CPU - since some interfaces need to
- * access keyboard events, a 100ms delay is a good compromise */
- gdk_threads_leave();
- msleep( INTF_IDLE_SLEEP );
- gdk_threads_enter();
- }
- #else
- /* Sleep to avoid using all CPU - since some interfaces needs to access
- * keyboard events, a 100ms delay is a good compromise */
- i_dummy = gtk_timeout_add( INTF_IDLE_SLEEP / 1000, (GtkFunction)Manage,
- p_intf );
- /* Enter Gtk mode */
- gtk_main();
- /* Remove the timeout */
- gtk_timeout_remove( i_dummy );
- #endif
- gtk_object_destroy( GTK_OBJECT(p_intf->p_sys->p_window) );
- #ifdef NEED_GTK2_MAIN
- gdk_threads_leave();
- #endif
- }
- /* following functions are local */
- /*****************************************************************************
- * Manage: manage main thread messages
- *****************************************************************************
- * In this function, called approx. 10 times a second, we check what the
- * main program wanted to tell us.
- *****************************************************************************/
- static int Manage( intf_thread_t *p_intf )
- {
- #ifndef NEED_GTK2_MAIN
- if( p_intf->b_die )
- {
- gtk_main_quit();
- return FALSE;
- }
- #endif
- return TRUE;
- }