gtk_callbacks.c

来自「VLC媒体播放程序」· C语言 代码 · 共 654 行 · 第 1/2 页

/*****************************************************************************
 * gtk_callbacks.c : Callbacks for the Gtk+ plugin.
 *****************************************************************************
 * Copyright (C) 2000, 2001, 2003 VideoLAN
 * $Id: gtk_callbacks.c,v 1.16 2003/12/22 14:32:56 sam Exp $
 *
 * Authors: Sam Hocevar <[e-mail]>
 *          St閜hane Borel <[e-mail]>
 *          Julien BLACHE <[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 <sys/types.h>                                              /* off_t */
#include <stdlib.h>

#include <vlc/vlc.h>
#include <vlc/intf.h>
#include <vlc/vout.h>
#include <vlc/aout.h>

#include <unistd.h>

#include <gtk/gtk.h>

#include <string.h>

#include "gtk_callbacks.h"
#include "gtk_interface.h"
#include "gtk_support.h"

#include "common.h"

#ifdef HAVE_CDDAX
#define CDDA_MRL "cddax://"
#else
#define CDDA_MRL "cdda://"
#endif

#ifdef HAVE_VCDX
#define VCD_MRL "vcdx://"
#else
#define VCD_MRL "vcdx://"
#endif

/*****************************************************************************
 * Useful function to retrieve p_intf
 ****************************************************************************/
void * E_(__GtkGetIntf)( GtkWidget * widget )
{
    void *p_data;

    if( GTK_IS_MENU_ITEM( widget ) )
    {
        /* Look for a GTK_MENU */
        while( widget->parent && !GTK_IS_MENU( widget ) )
        {
            widget = widget->parent;
        }

        /* Maybe this one has the data */
        p_data = gtk_object_get_data( GTK_OBJECT( widget ), "p_intf" );
        if( p_data )
        {
            return p_data;
        }

        /* Otherwise, the parent widget has it */
        widget = gtk_menu_get_attach_widget( GTK_MENU( widget ) );
        p_data = gtk_object_get_data( GTK_OBJECT( widget ), "p_intf" );
        if( p_data )
        {
            return p_data;
        }
    }

    /* We look for the top widget */
    widget = gtk_widget_get_toplevel( GTK_WIDGET( widget ) );
    p_data = gtk_object_get_data( GTK_OBJECT( widget ), "p_intf" );

    return p_data;
}

/*****************************************************************************
 * Callbacks
 *****************************************************************************/

/*
 * Main interface callbacks
 */

#ifdef MODULE_NAME_IS_gtk
#   define GTKEXIT GtkExit
#else
#   define GTKEXIT GnomeExit
#endif

gboolean GTKEXIT( GtkWidget       *widget,
                  gpointer         user_data )
{
    intf_thread_t *p_intf = GtkGetIntf( widget );

    vlc_mutex_lock( &p_intf->change_lock );
    p_intf->p_vlc->b_die = VLC_TRUE;
    vlc_mutex_unlock( &p_intf->change_lock );

    return TRUE;
}

void GtkClose( GtkMenuItem     *menuitem,
               gpointer         user_data )
{
    intf_thread_t *p_intf = GtkGetIntf( menuitem );
    p_intf->b_die = VLC_TRUE;
}

gboolean GtkWindowDelete( GtkWidget       *widget,
                          GdkEvent        *event,
                          gpointer         user_data )
{
    GTKEXIT( GTK_WIDGET( widget ), user_data );

    return TRUE;
}


gboolean GtkWindowToggle( GtkWidget       *widget,
                          gpointer         user_data )
{
    intf_thread_t *p_intf = GtkGetIntf( widget );

    if( GTK_WIDGET_VISIBLE(p_intf->p_sys->p_window) )
    {
        gtk_widget_hide( p_intf->p_sys->p_window);
    }
    else
    {
        gtk_widget_show( p_intf->p_sys->p_window );
    }

    return TRUE;
}

gboolean GtkFullscreen( GtkWidget       *widget,
                        gpointer         user_data)
{
    intf_thread_t *p_intf = GtkGetIntf( widget );
    vout_thread_t *p_vout;

    if( p_intf->p_sys->p_input == NULL )
    {
        return FALSE;
    }

    p_vout = vlc_object_find( p_intf->p_sys->p_input,
                              VLC_OBJECT_VOUT, FIND_CHILD );
    if( p_vout == NULL )
    {
        return FALSE;
    }

    p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
    vlc_object_release( p_vout );
    return TRUE;
}

void GtkWindowDrag( GtkWidget       *widget,
                    GdkDragContext  *drag_context,
                    gint             x,
                    gint             y,
                    GtkSelectionData *data,
                    guint            info,
                    guint            time,
                    gpointer         user_data)
{
    intf_thread_t * p_intf = GtkGetIntf( widget );
    GtkDropDataReceived( p_intf, data, info, PLAYLIST_END );
}


/****************************************************************************
 * Slider management
 ****************************************************************************/

gboolean GtkSliderRelease( GtkWidget       *widget,
                           GdkEventButton  *event,
                           gpointer         user_data )
{
    intf_thread_t *p_intf = GtkGetIntf( widget );

    vlc_mutex_lock( &p_intf->change_lock );
    p_intf->p_sys->b_slider_free = VLC_TRUE;
    vlc_mutex_unlock( &p_intf->change_lock );

    return FALSE;
}


gboolean GtkSliderPress( GtkWidget       *widget,
                         GdkEventButton  *event,
                         gpointer         user_data)
{
    intf_thread_t *p_intf = GtkGetIntf( widget );

    vlc_mutex_lock( &p_intf->change_lock );
    p_intf->p_sys->b_slider_free = VLC_FALSE;
    vlc_mutex_unlock( &p_intf->change_lock );

    return FALSE;
}


/****************************************************************************
 * DVD specific items
 ****************************************************************************/

void GtkTitlePrev( GtkButton * button, gpointer user_data )
{
    intf_thread_t *  p_intf;
    input_area_t *   p_area;
    int              i_id;

    p_intf = GtkGetIntf( button );
    vlc_mutex_lock( &p_intf->p_sys->p_input->stream.stream_lock );
    i_id = p_intf->p_sys->p_input->stream.p_selected_area->i_id - 1;

    if( i_id > 0 )
    {
        p_area = p_intf->p_sys->p_input->stream.pp_areas[i_id];
        vlc_mutex_unlock( &p_intf->p_sys->p_input->stream.stream_lock );

        input_ChangeArea( p_intf->p_sys->p_input, p_area );
        input_SetStatus( p_intf->p_sys->p_input, INPUT_STATUS_PLAY );

        p_intf->p_sys->b_title_update = VLC_TRUE;
        vlc_mutex_lock( &p_intf->p_sys->p_input->stream.stream_lock );
        GtkSetupMenus( p_intf );
    }

    vlc_mutex_unlock( &p_intf->p_sys->p_input->stream.stream_lock );
}


void GtkTitleNext( GtkButton * button, gpointer user_data )
{
    intf_thread_t * p_intf;
    input_area_t *  p_area;
    unsigned int    i_id;

    p_intf = GtkGetIntf( button );
    vlc_mutex_lock( &p_intf->p_sys->p_input->stream.stream_lock );
    i_id = p_intf->p_sys->p_input->stream.p_selected_area->i_id + 1;

    if( i_id < p_intf->p_sys->p_input->stream.i_area_nb )
    {
        p_area = p_intf->p_sys->p_input->stream.pp_areas[i_id];
        vlc_mutex_unlock( &p_intf->p_sys->p_input->stream.stream_lock );

        input_ChangeArea( p_intf->p_sys->p_input, p_area );
        input_SetStatus( p_intf->p_sys->p_input, INPUT_STATUS_PLAY );

        p_intf->p_sys->b_title_update = VLC_TRUE;
        vlc_mutex_lock( &p_intf->p_sys->p_input->stream.stream_lock );
        GtkSetupMenus( p_intf );
    }

    vlc_mutex_unlock( &p_intf->p_sys->p_input->stream.stream_lock );
}


void GtkChapterPrev( GtkButton * button, gpointer user_data )
{
    intf_thread_t * p_intf;
    input_area_t *  p_area;

    p_intf = GtkGetIntf( button );
    vlc_mutex_lock( &p_intf->p_sys->p_input->stream.stream_lock );
    p_area = p_intf->p_sys->p_input->stream.p_selected_area;

    if( p_area->i_part - 1 > 0 )
    {
        p_area->i_part--;
        vlc_mutex_unlock( &p_intf->p_sys->p_input->stream.stream_lock );

        input_ChangeArea( p_intf->p_sys->p_input, p_area );
        input_SetStatus( p_intf->p_sys->p_input, INPUT_STATUS_PLAY );

        p_intf->p_sys->b_chapter_update = VLC_TRUE;
        vlc_mutex_lock( &p_intf->p_sys->p_input->stream.stream_lock );
        GtkSetupMenus( p_intf );
    }

    vlc_mutex_unlock( &p_intf->p_sys->p_input->stream.stream_lock );
}


void GtkChapterNext( GtkButton * button, gpointer user_data )
{
    intf_thread_t * p_intf;
    input_area_t *  p_area;

    p_intf = GtkGetIntf( button );
    vlc_mutex_lock( &p_intf->p_sys->p_input->stream.stream_lock );
    p_area = p_intf->p_sys->p_input->stream.p_selected_area;

    if( p_area->i_part + 1 < p_area->i_part_nb )
    {
        p_area->i_part++;
        vlc_mutex_unlock( &p_intf->p_sys->p_input->stream.stream_lock );

        input_ChangeArea( p_intf->p_sys->p_input, p_area );
        input_SetStatus( p_intf->p_sys->p_input, INPUT_STATUS_PLAY );