gtk.c

video linux conference

/*****************************************************************************
 * gtk.c : Gtk+ plugin for vlc
 *****************************************************************************
 * Copyright (C) 2000-2001 VideoLAN
 * $Id: gtk.c 10101 2005-03-02 16:47:31Z robux4 $
 *
 * Authors: Samuel Hocevar <[e-mail]>
 *
 * 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 "gtk_callbacks.h"
#include "gtk_interface.h"
#include "gtk_support.h"

#include "menu.h"
#include "display.h"
#include "common.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
 *****************************************************************************/
#define TOOLTIPS_TEXT N_("Show tooltips")
#define TOOLTIPS_LONGTEXT N_("Show tooltips for configuration options.")

#define PREFS_MAXH_TEXT N_("Maximum height for the configuration windows")
#define PREFS_MAXH_LONGTEXT N_( \
    "You can set the maximum height that the configuration windows in the " \
    "preferences menu will occupy.")

#define PATH_TEXT N_("Interface default search path")
#define PATH_LONGTEXT N_( \
    "This option allows you to set the default path that the interface will " \
    "open when looking for a file.")

vlc_module_begin();
#ifdef WIN32
    int i = 90;
#else
    int i = getenv( "DISPLAY" ) == NULL ? 10 : 90;
#endif
    set_description( _("Gtk+ interface") );
    set_category( CAT_INTERFACE );
    set_subcategory( SUBCAT_INTERFACE_GENERAL );

    add_bool( "gtk-tooltips", 1, E_(GtkHideTooltips),
              TOOLTIPS_TEXT, TOOLTIPS_LONGTEXT, VLC_FALSE );
    add_integer( "gtk-prefs-maxh", 480, NULL,
                 PREFS_MAXH_TEXT, PREFS_MAXH_LONGTEXT, VLC_TRUE );
    add_directory( "gtk-search-path", NULL, NULL, PATH_TEXT,
                   PATH_LONGTEXT, VLC_TRUE );

    set_capability( "interface", i );
    set_callbacks( Open, Close );
    add_shortcut( "gtk" );
    set_program( "gvlc" );
vlc_module_end();

/*****************************************************************************
 * 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_GTK_MAIN
    p_intf->p_sys->p_gtk_main =
        module_Need( p_this, "gui-helper", "gtk", VLC_TRUE );
    if( p_intf->p_sys->p_gtk_main == NULL )
    {
        free( p_intf->p_sys );
        return VLC_ENOMOD;
    }
#endif

    p_intf->pf_run = Run;

    p_intf->p_sys->p_sub = msg_Subscribe( p_intf );

    /* Initialize Gtk+ thread */
    p_intf->p_sys->b_playing = VLC_FALSE;
    p_intf->p_sys->b_deinterlace_update = VLC_FALSE;

    p_intf->p_sys->b_aout_update = VLC_FALSE;
    p_intf->p_sys->b_vout_update = VLC_FALSE;

    p_intf->p_sys->b_popup_changed = VLC_FALSE;
    p_intf->p_sys->b_window_changed = VLC_FALSE;
    p_intf->p_sys->b_playlist_changed = VLC_FALSE;
    p_intf->p_sys->b_program_update = VLC_FALSE;
    p_intf->p_sys->b_title_update = VLC_FALSE;
    p_intf->p_sys->b_chapter_update = VLC_FALSE;
    p_intf->p_sys->b_spu_update = VLC_FALSE;
    p_intf->p_sys->b_audio_update = VLC_FALSE;

    p_intf->p_sys->p_input = NULL;
    p_intf->p_sys->i_playing = -1;
    p_intf->p_sys->b_slider_free = VLC_TRUE;

    p_intf->p_sys->i_part = 0;
    p_intf->p_sys->b_mute = VLC_FALSE;

    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;

    if( p_intf->p_sys->p_input )
    {
        vlc_object_release( p_intf->p_sys->p_input );
    }

    msg_Unsubscribe( p_intf, p_intf->p_sys->p_sub );

#ifdef NEED_GTK_MAIN
    module_Unneed( p_intf, p_intf->p_sys->p_gtk_main );
#endif

    /* Destroy structure */
    free( p_intf->p_sys );
}

/*****************************************************************************
 * Run: Gtk+ 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 )
{
    /* The data types we are allowed to receive */
    static GtkTargetEntry target_table[] =
    {
        { "STRING", 0, DROP_ACCEPT_STRING },
        { "text/uri-list", 0, DROP_ACCEPT_TEXT_URI_LIST },
        { "text/plain", 0, DROP_ACCEPT_TEXT_PLAIN }
    };
    char *psz_sout;
    GString *       p_target;

#ifdef NEED_GTK_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_init( &i_args, &pp_args );
#endif

    /* Create some useful widgets that will certainly be used */
    p_intf->p_sys->p_window = create_intf_window();
    p_intf->p_sys->p_popup = create_intf_popup();
    p_intf->p_sys->p_playwin = create_intf_playlist();
    p_intf->p_sys->p_messages = create_intf_messages();
    p_intf->p_sys->p_tooltips = gtk_tooltips_new();
    p_intf->p_sys->p_sout = create_intf_sout();

    /* Set the title of the main window */
    gtk_window_set_title( GTK_WINDOW(p_intf->p_sys->p_window),
                          VOUT_TITLE " (Gtk+ interface)");

    /* Accept file drops on the main window */
    gtk_drag_dest_set( GTK_WIDGET( p_intf->p_sys->p_window ),
                       GTK_DEST_DEFAULT_ALL, target_table,
                       DROP_ACCEPT_END, GDK_ACTION_COPY );

    /* Accept file drops on the playlist window */
    gtk_drag_dest_set( GTK_WIDGET( lookup_widget( p_intf->p_sys->p_playwin,
                                   "playlist_clist") ),
                       GTK_DEST_DEFAULT_ALL, target_table,
                       DROP_ACCEPT_END, GDK_ACTION_COPY );

    /* Get the slider object */
    p_intf->p_sys->p_slider_frame = GTK_FRAME( gtk_object_get_data(
        GTK_OBJECT( p_intf->p_sys->p_window ), "slider_frame" ) );

    /* Configure the log window */
    p_intf->p_sys->p_messages_text = GTK_TEXT( gtk_object_get_data(
        GTK_OBJECT(p_intf->p_sys->p_messages ), "messages_textbox" ) );
    gtk_text_set_line_wrap( p_intf->p_sys->p_messages_text, TRUE);
    gtk_text_set_word_wrap( p_intf->p_sys->p_messages_text, FALSE);

    /* Get the interface labels */
#define P_LABEL( name ) GTK_LABEL( gtk_object_get_data( \
                         GTK_OBJECT( p_intf->p_sys->p_window ), name ) )
    p_intf->p_sys->p_label_title = P_LABEL( "title_label" );
    p_intf->p_sys->p_label_chapter = P_LABEL( "chapter_label" );
#undef P_LABEL

    /* Connect the date display to the slider */
#define P_SLIDER GTK_RANGE( gtk_object_get_data( \
                         GTK_OBJECT( p_intf->p_sys->p_window ), "slider" ) )
    p_intf->p_sys->p_adj = gtk_range_get_adjustment( P_SLIDER );

    gtk_signal_connect ( GTK_OBJECT( p_intf->p_sys->p_adj ), "value_changed",
                         GTK_SIGNAL_FUNC( E_(GtkDisplayDate) ), NULL );
    p_intf->p_sys->f_adj_oldvalue = 0;
#undef P_SLIDER



    /* We don't create these ones yet because we perhaps won't need them */
    p_intf->p_sys->p_about = NULL;
    p_intf->p_sys->p_modules = NULL;
    p_intf->p_sys->p_open = NULL;
    p_intf->p_sys->p_jump = NULL;

    /* Hide tooltips if the option is set */
    if( !config_GetInt( p_intf, "gtk-tooltips" ) )
    {
        gtk_tooltips_disable( p_intf->p_sys->p_tooltips );
    }

    /* Store p_intf to keep an eye on it */
    gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_window),
                         "p_intf", p_intf );

    gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_popup),
                         "p_intf", p_intf );
    gtk_object_set_data( GTK_OBJECT( gtk_object_get_data(
                             GTK_OBJECT(p_intf->p_sys->p_popup),
                             "popup_audio" ) ), "p_intf", p_intf );
    gtk_object_set_data( GTK_OBJECT( gtk_object_get_data(
                             GTK_OBJECT(p_intf->p_sys->p_popup),
                             "popup_video" ) ), "p_intf", p_intf );

    gtk_object_set_data( GTK_OBJECT( p_intf->p_sys->p_playwin ),
                         "p_intf", p_intf );

    gtk_object_set_data( GTK_OBJECT( p_intf->p_sys->p_messages ),
                         "p_intf", p_intf );