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/*****************************************************************************
 * menus.cpp : Qt menus
 *****************************************************************************
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 * Copyright (C) 2006-2007 the VideoLAN team
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 * $Id$
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 *
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 * Authors: Clment Stenac <zorglub@videolan.org>
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 *          Jean-Baptiste Kempf <jb@videolan.org>
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 *
 * 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

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#ifndef WIN32
#   include <signal.h>
#endif

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#include <vlc_intf_strings.h>
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#include "main_interface.hpp"
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#include "menus.hpp"
#include "dialogs_provider.hpp"
#include "input_manager.hpp"

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#include <QMenu>
#include <QMenuBar>
#include <QAction>
#include <QActionGroup>
#include <QSignalMapper>
#include <QSystemTrayIcon>

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enum
{
    ITEM_NORMAL,
    ITEM_CHECK,
    ITEM_RADIO
};

static QActionGroup *currentGroup;

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// Add static entries to menus
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#define DP_SADD( menu, text, help, icon, slot, shortcut ) \
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{ \
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    if( strlen(icon) > 0 ) \
    { \
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        if( strlen(shortcut) > 0 ) \
        { \
            menu->addAction( QIcon(icon), text, THEDP, SLOT( slot ), \
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                    qtr(shortcut) );\
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        } \
        else \
        { \
            menu->addAction( QIcon(icon), text, THEDP, SLOT( slot ) );\
        } \
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    } \
    else \
    { \
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        if( strlen(shortcut) > 0 ) \
        { \
            menu->addAction( text, THEDP, SLOT( slot ), \
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                    qtr(shortcut) ); \
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        } \
        else \
        { \
            menu->addAction( text, THEDP, SLOT( slot ) ); \
        } \
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    } \
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}
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#define MIM_SADD( menu, text, help, icon, slot ) \
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{ \
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    if( strlen(icon) > 0 ) \
    { \
        QAction *action = menu->addAction( text, THEMIM, SLOT( slot ) ); \
        action->setIcon(QIcon(icon)); \
    } \
    else \
    { \
        menu->addAction( text, THEMIM, SLOT( slot ) ); \
    } \
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}
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#define PL_SADD
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/*****************************************************************************
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 * Definitions of variables for the dynamic menus
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 *****************************************************************************/
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#define PUSH_VAR( var ) varnames.push_back( var ); \
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    objects.push_back( p_object->i_object_id )
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#define PUSH_SEPARATOR if( objects.size() != i_last_separator ) { \
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    objects.push_back( 0 ); varnames.push_back( "" ); \
    i_last_separator = objects.size(); }
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static int InputAutoMenuBuilder( vlc_object_t *p_object,
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        vector<int> &objects,
        vector<const char *> &varnames )
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{
    PUSH_VAR( "bookmark");
    PUSH_VAR( "title" );
    PUSH_VAR ("chapter" );
    PUSH_VAR( "program" );
    PUSH_VAR( "navigation" );
    PUSH_VAR( "dvd_menus" );
    return VLC_SUCCESS;
}

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static int VideoAutoMenuBuilder( vlc_object_t *p_object,
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        vector<int> &objects,
        vector<const char *> &varnames )
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{
    PUSH_VAR( "fullscreen" );
    PUSH_VAR( "zoom" );
    PUSH_VAR( "deinterlace" );
    PUSH_VAR( "aspect-ratio" );
    PUSH_VAR( "crop" );
    PUSH_VAR( "video-on-top" );
    PUSH_VAR( "directx-wallpaper" );
    PUSH_VAR( "video-snapshot" );

    vlc_object_t *p_dec_obj = (vlc_object_t *)vlc_object_find( p_object,
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            VLC_OBJECT_DECODER,
            FIND_PARENT );
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    if( p_dec_obj != NULL )
    {
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        vlc_object_t *p_object = p_dec_obj;
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        PUSH_VAR( "ffmpeg-pp-q" );
        vlc_object_release( p_dec_obj );
    }
    return VLC_SUCCESS;
}

static int AudioAutoMenuBuilder( vlc_object_t *p_object,
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        vector<int> &objects,
        vector<const char *> &varnames )
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{
    PUSH_VAR( "audio-device" );
    PUSH_VAR( "audio-channels" );
    PUSH_VAR( "visual" );
    PUSH_VAR( "equalizer" );
    return VLC_SUCCESS;
}

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/*****************************************************************************
 * All normal menus
 *****************************************************************************/

#define BAR_ADD( func, title ) { \
    QMenu *menu = func; menu->setTitle( title  ); bar->addMenu( menu ); }

#define BAR_DADD( func, title, id ) { \
    QMenu *menu = func; menu->setTitle( title  ); bar->addMenu( menu ); \
    MenuFunc *f = new MenuFunc( menu, id ); \
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    CONNECT( menu, aboutToShow(), THEDP->menusUpdateMapper, map() ); \
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    THEDP->menusUpdateMapper->setMapping( menu, f ); }

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void QVLCMenu::createMenuBar( MainInterface *mi, intf_thread_t *p_intf,
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        bool playlist, bool adv_controls_enabled,
        bool visual_selector_enabled )
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{
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#ifndef WIN32
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    /* Ugly klugde
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     * Remove SIGCHLD from the ignored signal the time to initialise
     * Qt because it call gconf to get the icon theme */
    sigset_t set;

    sigemptyset( &set );
    sigaddset( &set, SIGCHLD );
    pthread_sigmask (SIG_UNBLOCK, &set, NULL);
#endif
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    QMenuBar *bar = mi->menuBar();
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#ifndef WIN32
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    pthread_sigmask (SIG_BLOCK, &set, NULL);
#endif
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    BAR_ADD( FileMenu(), qtr("&Media") );
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    if( playlist )
    {
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        BAR_ADD( PlaylistMenu( mi,p_intf ), qtr("&Playlist" ) );
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    }
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    BAR_ADD( ToolsMenu( p_intf, mi, adv_controls_enabled,
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                visual_selector_enabled ), qtr("&Tools") );
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    BAR_DADD( VideoMenu( p_intf, NULL ), qtr("&Video"), 1 );
    BAR_DADD( AudioMenu( p_intf, NULL ), qtr("&Audio"), 2 );
    BAR_DADD( NavigMenu( p_intf, NULL ), qtr("&Navigation"), 3 );
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    BAR_ADD( HelpMenu(), qtr("&Help" ) );
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}
QMenu *QVLCMenu::FileMenu()
{
    QMenu *menu = new QMenu();
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    DP_SADD( menu, qtr("Open &File..." ), "", "", openFileDialog(), "Ctrl+O" );
    DP_SADD( menu, qtr("Open &Disc..." ), "", "", openDiscDialog(), "Ctrl+D" );
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    DP_SADD( menu, qtr("Open &Network..." ), "",
                ":/pixmaps/vlc_network_16px.png", openNetDialog(), "Ctrl+N" );
    DP_SADD( menu, qtr("Open &Capture Device..." ), "",
            ":/pixmaps/vlc_capture-card_16px.png", openCaptureDialog(),
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            "Ctrl+C" );
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    menu->addSeparator();
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    DP_SADD( menu, qtr("&Streaming..."), "", ":/pixmaps/vlc_stream_16px.png",
            openThenStreamingDialogs(), "Ctrl+S" );
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    DP_SADD( menu, qtr("Conve&rt / Save..."), "", "",
            openThenTranscodingDialogs(), "Ctrl+R" );
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    menu->addSeparator();
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    DP_SADD( menu, qtr("&Quit") , "", ":/pixmaps/vlc_quit_16px.png", quit(),
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            "Ctrl+Q");
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    return menu;
}

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QMenu *QVLCMenu::PlaylistMenu( MainInterface *mi, intf_thread_t *p_intf )
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{
    QMenu *menu = new QMenu();
    menu->addMenu( SDMenu( p_intf ) );
    menu->addSeparator();

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    DP_SADD( menu, qtr(I_PL_LOAD), "", "", openPlaylist(), "Ctrl+L" );
    DP_SADD( menu, qtr(I_PL_SAVE), "", "", savePlaylist(), "Ctrl+K" );
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    menu->addSeparator();
    menu->addAction( qtr("Undock from interface"), mi,
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            SLOT( undockPlaylist() ), qtr("Ctrl+U") );
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    return menu;
}

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QMenu *QVLCMenu::ToolsMenu( intf_thread_t *p_intf, MainInterface *mi,
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        bool adv_controls_enabled,
        bool visual_selector_enabled, bool with_intf )
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{
    QMenu *menu = new QMenu();
    if( with_intf )
    {
        QMenu *intfmenu = InterfacesMenu( p_intf, NULL );
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        intfmenu->setTitle( qtr("Interfaces" ) );
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        menu->addMenu( intfmenu );
        menu->addSeparator();
    }
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    DP_SADD( menu, qtr(I_MENU_MSG), "", ":/pixmaps/vlc_messages_16px.png",
             messagesDialog(), "Ctrl+M" );
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    DP_SADD( menu, qtr(I_MENU_INFO) , "", "", mediaInfoDialog(), "Ctrl+J" );
    DP_SADD( menu, qtr(I_MENU_CODECINFO) , "", ":/pixmaps/vlc_info_16px.png",
             mediaCodecDialog(), "Ctrl+I" );
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    DP_SADD( menu, qtr(I_MENU_GOTOTIME), "","", gotoTimeDialog(), "Ctrl+T" );
    DP_SADD( menu, qtr(I_MENU_BOOKMARK), "","", bookmarksDialog(), "Ctrl+B" );
    DP_SADD( menu, qtr(I_MENU_VLM), "","", vlmDialog(), "Ctrl+V" );
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    menu->addSeparator();
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    if( mi )
    {
        QAction *adv = menu->addAction( qtr("Advanced controls" ),
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                mi, SLOT( advanced() ) );
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        adv->setCheckable( true );
        if( adv_controls_enabled ) adv->setChecked( true );
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#if 0
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        adv = menu->addAction( qtr("Visualizations selector" ),
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                mi, SLOT( visual() ) );
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        adv->setCheckable( true );
        if( visual_selector_enabled ) adv->setChecked( true );
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#endif
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        menu->addAction ( qtr( "Playlist"), mi, SLOT( playlist() ) );
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    }
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    DP_SADD( menu, qtr(I_MENU_EXT), "","",extendedDialog(), "Ctrl+E" );
    DP_SADD( menu, qtr("Hide Menus..."), "","",hideMenus(), "Ctrl+H" );
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    menu->addSeparator();
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    DP_SADD( menu, qtr("Preferences"), "", "", prefsDialog(), "Ctrl+P" );
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    return menu;
}

QMenu *QVLCMenu::InterfacesMenu( intf_thread_t *p_intf, QMenu *current )
{
    vector<int> objects;
    vector<const char *> varnames;
    /** \todo add "switch to XXX" */
    varnames.push_back( "intf-add" );
    objects.push_back( p_intf->i_object_id );
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    QMenu *menu = Populate( p_intf, current, varnames, objects );
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    if( !p_intf->pf_show_dialog )
    {
        menu->addSeparator();
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        menu->addAction( qtr("Switch to skins"), THEDP, SLOT(switchToSkins()),
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                QString("Ctrl+Z") );
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    }

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    CONNECT( menu, aboutToShow(), THEDP->menusUpdateMapper, map() );
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    THEDP->menusUpdateMapper->setMapping( menu, 4 );
    return menu;
}

QMenu *QVLCMenu::AudioMenu( intf_thread_t *p_intf, QMenu * current )
{
    vector<int> objects;
    vector<const char *> varnames;

    vlc_object_t *p_object = (vlc_object_t *)vlc_object_find( p_intf,
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            VLC_OBJECT_INPUT, FIND_ANYWHERE );
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    if( p_object != NULL )
    {
        PUSH_VAR( "audio-es" );
        vlc_object_release( p_object );
    }

    p_object = (vlc_object_t *)vlc_object_find( p_intf, VLC_OBJECT_AOUT,
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            FIND_ANYWHERE );
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    if( p_object )
    {
        AudioAutoMenuBuilder( p_object, objects, varnames );
        vlc_object_release( p_object );
    }
    return Populate( p_intf, current, varnames, objects );
}


QMenu *QVLCMenu::VideoMenu( intf_thread_t *p_intf, QMenu *current )
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{
    vlc_object_t *p_object;
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    vector<int> objects;
    vector<const char *> varnames;

    p_object = (vlc_object_t *)vlc_object_find( p_intf, VLC_OBJECT_INPUT,
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            FIND_ANYWHERE );
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    if( p_object != NULL )
    {
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        PUSH_VAR( "video-es" );
        PUSH_VAR( "spu-es" );
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        vlc_object_release( p_object );
    }
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    p_object = (vlc_object_t *)vlc_object_find( p_intf, VLC_OBJECT_VOUT,
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            FIND_ANYWHERE );
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    if( p_object != NULL )
    {
        VideoAutoMenuBuilder( p_object, objects, varnames );
        vlc_object_release( p_object );
    }
    return Populate( p_intf, current, varnames, objects );
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}

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QMenu *QVLCMenu::NavigMenu( intf_thread_t *p_intf, QMenu *current )
{
    vlc_object_t *p_object;
    vector<int> objects;
    vector<const char *> varnames;
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    /* FIXME */
    p_object = (vlc_object_t *)vlc_object_find( p_intf, VLC_OBJECT_INPUT,
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            FIND_ANYWHERE );
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    if( p_object != NULL )
    {
        InputAutoMenuBuilder( p_object, objects, varnames );
        PUSH_VAR( "prev-title"); PUSH_VAR ( "next-title" );
        PUSH_VAR( "prev-chapter"); PUSH_VAR( "next-chapter" );
        vlc_object_release( p_object );
    }
    return Populate( p_intf, current, varnames, objects );
}
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QMenu *QVLCMenu::SDMenu( intf_thread_t *p_intf )
{
    QMenu *menu = new QMenu();
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    menu->setTitle( qtr(I_PL_SD) );
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    vlc_list_t *p_list = vlc_list_find( p_intf, VLC_OBJECT_MODULE,
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            FIND_ANYWHERE );
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    int i_num = 0;
    for( int i_index = 0 ; i_index < p_list->i_count; i_index++ )
    {
        module_t * p_parser = (module_t *)p_list->p_values[i_index].p_object ;
        if( !strcmp( p_parser->psz_capability, "services_discovery" ) )
            i_num++;
    }
    for( int i_index = 0 ; i_index < p_list->i_count; i_index++ )
    {
        module_t * p_parser = (module_t *)p_list->p_values[i_index].p_object;
        if( !strcmp( p_parser->psz_capability, "services_discovery" ) )
        {
            QAction *a = new QAction( qfu( p_parser->psz_longname ), menu );
            a->setCheckable( true );
            /* hack to handle submodules properly */
            int i = -1;
            while( p_parser->pp_shortcuts[++i] != NULL );
            i--;
            if( playlist_IsServicesDiscoveryLoaded( THEPL,
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                        i>=0?p_parser->pp_shortcuts[i] : p_parser->psz_object_name ) )
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            {
                a->setChecked( true );
            }
            CONNECT( a , triggered(), THEDP->SDMapper, map() );
            THEDP->SDMapper->setMapping( a, i>=0? p_parser->pp_shortcuts[i] :
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                    p_parser->psz_object_name );
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            menu->addAction( a );
        }
    }
    vlc_list_release( p_list );
    return menu;
}
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QMenu *QVLCMenu::HelpMenu()
{
    QMenu *menu = new QMenu();
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    DP_SADD( menu, qtr("Help") , "", ":/pixmaps/vlc_help_16px.png", helpDialog(), "F1" );
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    menu->addSeparator();
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    DP_SADD( menu, qtr(I_MENU_ABOUT), "", "", aboutDialog(), "Ctrl+F1");
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    return menu;
}


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/*****************************************************************************
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 * Popup menus                                                               *
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 *****************************************************************************/
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#define POPUP_BOILERPLATE \
    unsigned int i_last_separator = 0; \
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    vector<int> objects; \
    vector<const char *> varnames; \
    input_thread_t *p_input = THEMIM->getInput();

#define CREATE_POPUP \
    QMenu *menu = new QMenu(); \
    Populate( p_intf, menu, varnames, objects ); \
    p_intf->p_sys->p_popup_menu = menu; \
    menu->popup( QCursor::pos() ); \
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    p_intf->p_sys->p_popup_menu = NULL; \
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    i_last_separator = 0;
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#define POPUP_PLAY_ENTRIES( menu )\
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    vlc_value_t val; \
    if( p_input ) \
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    { \
        var_Get( p_input, "state", &val ); \
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        if( val.i_int == PLAYING_S ) \
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            MIM_SADD( menu, qtr("Pause"), "", ":/pixmaps/vlc_pause_16px.png", \
                    togglePlayPause() ) \
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        else \
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            MIM_SADD( menu, qtr("Play"), "", ":/pixmaps/vlc_play_16px.png", \
                    togglePlayPause() ) \
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    } \
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    else if( THEPL->items.i_size && THEPL->i_enabled ) \
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        MIM_SADD( menu, qtr("Play"), "", ":/pixmaps/vlc_play_16px.png", \
                togglePlayPause() ); \
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    \
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    MIM_SADD( menu, qtr("Stop"), "", ":/pixmaps/vlc_stop_16px.png", stop() ); \
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    MIM_SADD( menu, qtr("Previous"), "", ":/pixmaps/vlc_previous_16px.png", \
            prev() ); \
    MIM_SADD( menu, qtr("Next"), "", ":/pixmaps/vlc_next_16px.png", next() );
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#define POPUP_STATIC_ENTRIES \
    POPUP_PLAY_ENTRIES( menu ); \
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    \
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    menu->addSeparator(); \
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    QMenu *intfmenu = InterfacesMenu( p_intf, NULL ); \
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    intfmenu->setTitle( qtr("Interfaces" ) ); \
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    menu->addMenu( intfmenu ); \
    \
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    QMenu *toolsmenu = ToolsMenu( p_intf, NULL, false, false, false ); \
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    toolsmenu->setTitle( qtr("Tools" ) ); \
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    menu->addMenu( toolsmenu ); \
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    \
    QMenu *openmenu = new QMenu( qtr("Open") ); \
    openmenu->addAction( qtr("Open &File..." ), THEDP, SLOT( openFileDialog() ) ); \
    openmenu->addAction( qtr("Open &Disc..." ), THEDP, SLOT( openDiscDialog() ) ); \
    openmenu->addAction( qtr("Open &Network..." ), THEDP, SLOT( openNetDialog() ) ); \
    openmenu->addAction( qtr("Open &Capture Device..." ), THEDP, \
            SLOT( openCaptureDialog() ) ); \
    menu->addMenu( openmenu ); \
    \
    menu->addSeparator(); \
    QMenu *helpmenu = HelpMenu(); \
    helpmenu->setTitle( qtr("Help") ); \
    menu->addMenu( helpmenu ); \
    \
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    DP_SADD( menu, qtr("Quit"), "", "", quit() , "Ctrl+Q" );
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void QVLCMenu::VideoPopupMenu( intf_thread_t *p_intf )
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{
    POPUP_BOILERPLATE;
    if( p_input )
    {
        vlc_object_yield( p_input );
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        varnames.push_back( "video-es" );
        objects.push_back( p_input->i_object_id );
        varnames.push_back( "spu-es" );
        objects.push_back( p_input->i_object_id );
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        vlc_object_t *p_vout = (vlc_object_t *)vlc_object_find( p_input,
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                VLC_OBJECT_VOUT, FIND_CHILD );
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        if( p_vout )
        {
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            VideoAutoMenuBuilder( p_vout, objects, varnames );
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            vlc_object_release( p_vout );
        }
        vlc_object_release( p_input );
    }
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    CREATE_POPUP;
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}

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void QVLCMenu::AudioPopupMenu( intf_thread_t *p_intf )
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{
    POPUP_BOILERPLATE;
    if( p_input )
    {
        vlc_object_yield( p_input );
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        varnames.push_back( "audio-es" );
        objects.push_back( p_input->i_object_id );
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        vlc_object_t *p_aout = (vlc_object_t *)vlc_object_find( p_input,
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                VLC_OBJECT_AOUT, FIND_ANYWHERE );
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        if( p_aout )
        {
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            AudioAutoMenuBuilder( p_aout, objects, varnames );
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            vlc_object_release( p_aout );
        }
        vlc_object_release( p_input );
    }
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    CREATE_POPUP;
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}

/* Navigation stuff, and general */
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void QVLCMenu::MiscPopupMenu( intf_thread_t *p_intf )
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{
    POPUP_BOILERPLATE;
    if( p_input )
    {
        vlc_object_yield( p_input );
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        varnames.push_back( "audio-es" );
        InputAutoMenuBuilder( VLC_OBJECT(p_input), objects, varnames );
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        PUSH_SEPARATOR;
    }

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    QMenu *menu = new QMenu();
    Populate( p_intf, menu, varnames, objects );
    menu->addSeparator();
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    POPUP_STATIC_ENTRIES;

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    p_intf->p_sys->p_popup_menu = menu;
    menu->popup( QCursor::pos() );
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    p_intf->p_sys->p_popup_menu = NULL;
}

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void QVLCMenu::PopupMenu( intf_thread_t *p_intf, bool show )
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{
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    if( show )
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    {
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        // create a  popup if there is none
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        if( ! p_intf->p_sys->p_popup_menu )
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        {
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            POPUP_BOILERPLATE;
            if( p_input )
            {
                vlc_object_yield( p_input );
                InputAutoMenuBuilder( VLC_OBJECT(p_input), objects, varnames );

                /* Video menu */
                PUSH_SEPARATOR;
                varnames.push_back( "video-es" );
                objects.push_back( p_input->i_object_id );
                varnames.push_back( "spu-es" );
                objects.push_back( p_input->i_object_id );
                vlc_object_t *p_vout = (vlc_object_t *)vlc_object_find( p_input,
                        VLC_OBJECT_VOUT, FIND_CHILD );
                if( p_vout )
                {
                    VideoAutoMenuBuilder( p_vout, objects, varnames );
                    vlc_object_release( p_vout );
                }
                /* Audio menu */
                PUSH_SEPARATOR
                    varnames.push_back( "audio-es" );
                objects.push_back( p_input->i_object_id );
                vlc_object_t *p_aout = (vlc_object_t *)vlc_object_find( p_input,
                        VLC_OBJECT_AOUT, FIND_ANYWHERE );
                if( p_aout )
                {
                    AudioAutoMenuBuilder( p_aout, objects, varnames );
                    vlc_object_release( p_aout );
                }
            }
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            QMenu *menu = new QMenu();
            Populate( p_intf, menu, varnames, objects );
            menu->addSeparator();
            POPUP_STATIC_ENTRIES;
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            p_intf->p_sys->p_popup_menu = menu;
        }
        p_intf->p_sys->p_popup_menu->popup( QCursor::pos() );
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    }
    else
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    {
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        // destroy popup if there is one
        delete p_intf->p_sys->p_popup_menu;
        p_intf->p_sys->p_popup_menu = NULL;
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    }
}

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/************************************************************************
 * Systray Menu                                                         *
 ************************************************************************/

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void QVLCMenu::updateSystrayMenu( MainInterface *mi, intf_thread_t *p_intf,
                                    bool b_force_visible )
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{
    POPUP_BOILERPLATE;
    QMenu *sysMenu = mi->getSysTrayMenu();
    sysMenu->clear();
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    if( mi->isVisible() || b_force_visible )
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    {
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        sysMenu->addAction( QIcon( ":/vlc16.png" ),
                qtr("Hide VLC media player"), mi,
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                SLOT( toggleUpdateSystrayMenu() ) );
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    }
    else
    {
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        sysMenu->addAction( QIcon( ":/vlc16.png" ),
                qtr("Show VLC media player"), mi,
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                SLOT( toggleUpdateSystrayMenu() ) );
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    }
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    sysMenu->addSeparator();
    POPUP_PLAY_ENTRIES( sysMenu );
    sysMenu->addSeparator();
    DP_SADD( sysMenu, qtr("&Open Media" ), "", "", openFileDialog(), "" );
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    DP_SADD( sysMenu, qtr("&Quit") , "", ":/pixmaps/vlc_quit_16px.png",
             quit(), "" );
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    mi->getSysTray()->setContextMenu( sysMenu );
}

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#undef PUSH_VAR
#undef PUSH_SEPARATOR
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/*************************************************************************
 * Builders for automenus
 *************************************************************************/
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QMenu * QVLCMenu::Populate( intf_thread_t *p_intf, QMenu *current,
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        vector< const char *> & varnames,
        vector<int> & objects, bool append )
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{
    QMenu *menu = current;
    if( !menu )
        menu = new QMenu();
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    else if( !append )
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        menu->clear();

    currentGroup = NULL;

    vlc_object_t *p_object;
    vlc_bool_t b_section_empty = VLC_FALSE;
    int i;

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#define APPEND_EMPTY { QAction *action = menu->addAction( qtr("Empty" ) ); \
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    action->setEnabled( false ); }
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    for( i = 0; i < (int)objects.size() ; i++ )
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    {
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        if( !varnames[i] || !*varnames[i] )
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        {
            if( b_section_empty )
                APPEND_EMPTY;
            menu->addSeparator();
            b_section_empty = VLC_TRUE;
            continue;
        }

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        if( objects[i] == 0  )
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        {
            /// \bug What is this ?
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            // Append( menu, varnames[i], NULL );
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            b_section_empty = VLC_FALSE;
            continue;
        }

        p_object = (vlc_object_t *)vlc_object_get( p_intf,
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                objects[i] );
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        if( p_object == NULL ) continue;

        b_section_empty = VLC_FALSE;
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        /* Ugly specific stuff */
        if( strstr(varnames[i], "intf-add" ) )
            CreateItem( menu, varnames[i], p_object, false );
        else
            CreateItem( menu, varnames[i], p_object, true );
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        vlc_object_release( p_object );
    }

    /* Special case for empty menus */
    if( menu->actions().size() == 0 || b_section_empty )
        APPEND_EMPTY

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            return menu;
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}

/*****************************************************************************
 * Private methods.
 *****************************************************************************/

static bool IsMenuEmpty( const char *psz_var, vlc_object_t *p_object,
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        bool b_root = TRUE )
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{
    vlc_value_t val, val_list;
    int i_type, i_result, i;

    /* Check the type of the object variable */
    i_type = var_Type( p_object, psz_var );

    /* Check if we want to display the variable */
    if( !(i_type & VLC_VAR_HASCHOICE) ) return FALSE;

    var_Change( p_object, psz_var, VLC_VAR_CHOICESCOUNT, &val, NULL );
    if( val.i_int == 0 ) return TRUE;

    if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE )
    {
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        /* Very evil hack ! intf-switch can have only one value */
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        if( !strcmp( psz_var, "intf-switch" ) ) return FALSE;
        if( val.i_int == 1 && b_root ) return TRUE;
        else return FALSE;
    }

    /* Check children variables in case of VLC_VAR_VARIABLE */
    if( var_Change( p_object, psz_var, VLC_VAR_GETLIST, &val_list, NULL ) < 0 )
    {
        return TRUE;
    }

    for( i = 0, i_result = TRUE; i < val_list.p_list->i_count; i++ )
    {
        if( !IsMenuEmpty( val_list.p_list->p_values[i].psz_string,
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                    p_object, FALSE ) )
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        {
            i_result = FALSE;
            break;
        }
    }

    /* clean up everything */
    var_Change( p_object, psz_var, VLC_VAR_FREELIST, &val_list, NULL );

    return i_result;
}

void QVLCMenu::CreateItem( QMenu *menu, const char *psz_var,
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        vlc_object_t *p_object, bool b_submenu )
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{
    vlc_value_t val, text;
    int i_type;

    /* Check the type of the object variable */
    i_type = var_Type( p_object, psz_var );

    switch( i_type & VLC_VAR_TYPE )
    {
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        case VLC_VAR_VOID:
        case VLC_VAR_BOOL:
        case VLC_VAR_VARIABLE:
        case VLC_VAR_STRING:
        case VLC_VAR_INTEGER:
        case VLC_VAR_FLOAT:
            break;
        default:
            /* Variable doesn't exist or isn't handled */
            return;
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    }

    /* Make sure we want to display the variable */
    if( IsMenuEmpty( psz_var, p_object ) )  return;

    /* Get the descriptive name of the variable */
    var_Change( p_object, psz_var, VLC_VAR_GETTEXT, &text, NULL );

    if( i_type & VLC_VAR_HASCHOICE )
    {
        /* Append choices menu */
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        if( b_submenu )
        {
            QMenu *submenu = new QMenu();
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            submenu->setTitle( qfu( text.psz_string ?
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                        text.psz_string : psz_var ) );
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            if( CreateChoicesMenu( submenu, psz_var, p_object, true ) == 0)
                menu->addMenu( submenu );
        }
        else
            CreateChoicesMenu( menu, psz_var, p_object, true );
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        FREENULL( text.psz_string );
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        return;
    }

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#define TEXT_OR_VAR qfu ( text.psz_string ? text.psz_string : psz_var )
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    switch( i_type & VLC_VAR_TYPE )
    {
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        case VLC_VAR_VOID:
            var_Get( p_object, psz_var, &val );
            CreateAndConnect( menu, psz_var, TEXT_OR_VAR, "", ITEM_NORMAL,
                    p_object->i_object_id, val, i_type );
            break;

        case VLC_VAR_BOOL:
            var_Get( p_object, psz_var, &val );
            val.b_bool = !val.b_bool;
            CreateAndConnect( menu, psz_var, TEXT_OR_VAR, "", ITEM_CHECK,
                    p_object->i_object_id, val, i_type, !val.b_bool );
            break;
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    }
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    FREENULL( text.psz_string );
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}


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int QVLCMenu::CreateChoicesMenu( QMenu *submenu, const char *psz_var,
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        vlc_object_t *p_object, bool b_root )
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{
    vlc_value_t val, val_list, text_list;
    int i_type, i;

    /* Check the type of the object variable */
    i_type = var_Type( p_object, psz_var );

    /* Make sure we want to display the variable */
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    if( IsMenuEmpty( psz_var, p_object, b_root ) ) return VLC_EGENERIC;
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    switch( i_type & VLC_VAR_TYPE )
    {
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        case VLC_VAR_VOID:
        case VLC_VAR_BOOL:
        case VLC_VAR_VARIABLE:
        case VLC_VAR_STRING:
        case VLC_VAR_INTEGER:
        case VLC_VAR_FLOAT:
            break;
        default:
            /* Variable doesn't exist or isn't handled */
            return VLC_EGENERIC;
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    }

    if( var_Change( p_object, psz_var, VLC_VAR_GETLIST,
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                &val_list, &text_list ) < 0 )
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    {
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        return VLC_EGENERIC;
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    }
#define NORMAL_OR_RADIO i_type & VLC_VAR_ISCOMMAND ? ITEM_NORMAL: ITEM_RADIO
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#define NOTCOMMAND !(i_type & VLC_VAR_ISCOMMAND)
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#define CURVAL val_list.p_list->p_values[i]
#define CURTEXT text_list.p_list->p_values[i].psz_string

    for( i = 0; i < val_list.p_list->i_count; i++ )
    {
        vlc_value_t another_val;
        QString menutext;
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        QMenu *subsubmenu = new QMenu();
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        switch( i_type & VLC_VAR_TYPE )
        {
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            case VLC_VAR_VARIABLE:
                CreateChoicesMenu( subsubmenu, CURVAL.psz_string, p_object, false );
                subsubmenu->setTitle( qfu( CURTEXT ? CURTEXT :CURVAL.psz_string ) );
                submenu->addMenu( subsubmenu );
                break;

            case VLC_VAR_STRING:
                var_Get( p_object, psz_var, &val );
                another_val.psz_string = strdup( CURVAL.psz_string );
                menutext = qfu( CURTEXT ? CURTEXT : another_val.psz_string );
                CreateAndConnect( submenu, psz_var, menutext, "", NORMAL_OR_RADIO,
                        p_object->i_object_id, another_val, i_type,
                        NOTCOMMAND && val.psz_string &&
                        !strcmp( val.psz_string, CURVAL.psz_string ) );

                if( val.psz_string ) free( val.psz_string );
                break;

            case VLC_VAR_INTEGER:
                var_Get( p_object, psz_var, &val );
                if( CURTEXT ) menutext = qfu( CURTEXT );
                else menutext.sprintf( "%d", CURVAL.i_int);
                CreateAndConnect( submenu, psz_var, menutext, "", NORMAL_OR_RADIO,
                        p_object->i_object_id, CURVAL, i_type,
                        NOTCOMMAND && CURVAL.i_int == val.i_int );
                break;

            case VLC_VAR_FLOAT:
                var_Get( p_object, psz_var, &val );
                if( CURTEXT ) menutext = qfu( CURTEXT );
                else menutext.sprintf( "%.2f", CURVAL.f_float );
                CreateAndConnect( submenu, psz_var, menutext, "", NORMAL_OR_RADIO,
                        p_object->i_object_id, CURVAL, i_type,
                        NOTCOMMAND && CURVAL.f_float == val.f_float );
                break;

            default:
                break;
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        }
    }
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    currentGroup = NULL;
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    /* clean up everything */
    var_Change( p_object, psz_var, VLC_VAR_FREELIST, &val_list, &text_list );

#undef NORMAL_OR_RADIO
#undef NOTCOMMAND
#undef CURVAL
#undef CURTEXT
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    return VLC_SUCCESS;
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}

void QVLCMenu::CreateAndConnect( QMenu *menu, const char *psz_var,
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        QString text, QString help,
        int i_item_type, int i_object_id,
        vlc_value_t val, int i_val_type,
        bool checked )
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{
    QAction *action = new QAction( text, menu );
    action->setText( text );
    action->setToolTip( help );

    if( i_item_type == ITEM_CHECK )
    {
        action->setCheckable( true );
    }
    else if( i_item_type == ITEM_RADIO )
    {
        action->setCheckable( true );
        if( !currentGroup )
            currentGroup = new QActionGroup(menu);
        currentGroup->addAction( action );
    }

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    if( checked )
    {
        action->setChecked( true );
    }
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    MenuItemData *itemData = new MenuItemData( i_object_id, i_val_type,
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            val, psz_var );
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    CONNECT( action, triggered(), THEDP->menusMapper, map() );
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    THEDP->menusMapper->setMapping( action, itemData );
    menu->addAction( action );
}

void QVLCMenu::DoAction( intf_thread_t *p_intf, QObject *data )
{
    MenuItemData *itemData = qobject_cast<MenuItemData *>(data);
    vlc_object_t *p_object = (vlc_object_t *)vlc_object_get( p_intf,
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            itemData->i_object_id );
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    if( p_object == NULL ) return;

    var_Set( p_object, itemData->psz_var, itemData->val );
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    vlc_object_release( p_object );}