interfacewindow.cpp

video linux conference

/*****************************************************************************
 * InterfaceWindow.cpp: beos interface
 *****************************************************************************
 * Copyright (C) 1999, 2000, 2001 VideoLAN
 * $Id: InterfaceWindow.cpp 10101 2005-03-02 16:47:31Z robux4 $
 *
 * Authors: Jean-Marc Dressler <[e-mail]>
 *          Samuel Hocevar <[e-mail]>
 *          Tony Castley <[e-mail]>
 *          Richard Shepherd <[e-mail]>
 *          Stephan Aßmus <[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.
 *****************************************************************************/

/* System headers */
#include <kernel/OS.h>
#include <InterfaceKit.h>
#include <AppKit.h>
#include <StorageKit.h>
#include <SupportKit.h>
#include <malloc.h>
#include <scsi.h>
#include <scsiprobe_driver.h>
#include <fs_info.h>
#include <string.h>

/* VLC headers */
#include <vlc/vlc.h>
#include <vlc/aout.h>
#include <vlc/intf.h>
#include <vlc/input.h>

/* BeOS interface headers */
#include "MsgVals.h"
#include "MediaControlView.h"
#include "PlayListWindow.h"
#include "PreferencesWindow.h"
#include "MessagesWindow.h"
#include "InterfaceWindow.h"

#define INTERFACE_UPDATE_TIMEOUT  80000 // 2 frames if at 25 fps
#define INTERFACE_LOCKING_TIMEOUT 5000

// make_sure_frame_is_on_screen
bool
make_sure_frame_is_on_screen( BRect& frame )
{
    BScreen screen( B_MAIN_SCREEN_ID );
    if (frame.IsValid() && screen.IsValid()) {
        if (!screen.Frame().Contains(frame)) {
            // make sure frame fits in the screen
            if (frame.Width() > screen.Frame().Width())
                frame.right -= frame.Width() - screen.Frame().Width() + 10.0;
            if (frame.Height() > screen.Frame().Height())
                frame.bottom -= frame.Height() - screen.Frame().Height() + 30.0;
            // frame is now at the most the size of the screen
            if (frame.right > screen.Frame().right)
                frame.OffsetBy(-(frame.right - screen.Frame().right), 0.0);
            if (frame.bottom > screen.Frame().bottom)
                frame.OffsetBy(0.0, -(frame.bottom - screen.Frame().bottom));
            if (frame.left < screen.Frame().left)
                frame.OffsetBy((screen.Frame().left - frame.left), 0.0);
            if (frame.top < screen.Frame().top)
                frame.OffsetBy(0.0, (screen.Frame().top - frame.top));
        }
        return true;
    }
    return false;
}

// make_sure_frame_is_within_limits
void
make_sure_frame_is_within_limits( BRect& frame, float minWidth, float minHeight,
                                  float maxWidth, float maxHeight )
{
    if ( frame.Width() < minWidth )
        frame.right = frame.left + minWidth;
    if ( frame.Height() < minHeight )
        frame.bottom = frame.top + minHeight;
    if ( frame.Width() > maxWidth )
        frame.right = frame.left + maxWidth;
    if ( frame.Height() > maxHeight )
        frame.bottom = frame.top + maxHeight;
}

// get_volume_info
bool
get_volume_info( BVolume& volume, BString& volumeName, bool& isCDROM, BString& deviceName )
{
    bool success = false;
    isCDROM = false;
    deviceName = "";
    volumeName = "";
    char name[B_FILE_NAME_LENGTH];
    if ( volume.GetName( name ) >= B_OK )    // disk is currently mounted
    {
        volumeName = name;
        dev_t dev = volume.Device();
        fs_info info;
        if ( fs_stat_dev( dev, &info ) == B_OK )
        {
            success = true;
            deviceName = info.device_name;
            if ( volume.IsReadOnly() )
            {
                int i_dev = open( info.device_name, O_RDONLY );
                if ( i_dev >= 0 )
                {
                    device_geometry g;
                    if ( ioctl( i_dev, B_GET_GEOMETRY, &g, sizeof( g ) ) >= 0 )
                        isCDROM = ( g.device_type == B_CD );
                    close( i_dev );
                }
            }
        }
     }
     return success;
}

// collect_folder_contents
void
collect_folder_contents( BDirectory& dir, BList& list, bool& deep, bool& asked, BEntry& entry )
{
    while ( dir.GetNextEntry( &entry, true ) == B_OK )
    {
        if ( !entry.IsDirectory() )
        {
            BPath path;
            // since the directory will give us the entries in reverse order,
            // we put them each at the same index, effectively reversing the
            // items while adding them
            if ( entry.GetPath( &path ) == B_OK )
            {
                BString* string = new BString( path.Path() );
                if ( !list.AddItem( string, 0 ) )
                    delete string;    // at least don't leak
            }
        }
        else
        {
            if ( !asked )
            {
                // ask user if we should parse sub-folders as well
                BAlert* alert = new BAlert( "sub-folders?",
                                            _("Open files from all sub-folders as well?"),
                                            _("Cancel"), _("Open"), NULL, B_WIDTH_AS_USUAL,
                                            B_IDEA_ALERT );
                int32 buttonIndex = alert->Go();
                deep = buttonIndex == 1;
                asked = true;
                // never delete BAlerts!!
            }
            if ( deep )
            {
                BDirectory subDir( &entry );
                if ( subDir.InitCheck() == B_OK )
                    collect_folder_contents( subDir, list,
                                             deep, asked, entry );
            }
        }
    }
}


/*****************************************************************************
 * InterfaceWindow
 *****************************************************************************/

InterfaceWindow::InterfaceWindow( intf_thread_t * _p_intf, BRect frame,
                                  const char * name )
    : BWindow( frame, name, B_TITLED_WINDOW_LOOK, B_NORMAL_WINDOW_FEEL,
               B_NOT_ZOOMABLE | B_WILL_ACCEPT_FIRST_CLICK | B_ASYNCHRONOUS_CONTROLS ),

      /* Initializations */
      p_intf( _p_intf ),
      p_input( NULL ),
      p_playlist( NULL ),

      fFilePanel( NULL ),
      fLastUpdateTime( system_time() ),
      fSettings( new BMessage( 'sett' ) )
{
    char psz_tmp[1024];
#define ADD_ELLIPSIS( a ) \
    memset( psz_tmp, 0, 1024 ); \
    snprintf( psz_tmp, 1024, "%s%s", a, B_UTF8_ELLIPSIS );

    BScreen screen;
    BRect screen_rect = screen.Frame();
    BRect window_rect;
    window_rect.Set( ( screen_rect.right - PREFS_WINDOW_WIDTH ) / 2,
                     ( screen_rect.bottom - PREFS_WINDOW_HEIGHT ) / 2,
                     ( screen_rect.right + PREFS_WINDOW_WIDTH ) / 2,
                     ( screen_rect.bottom + PREFS_WINDOW_HEIGHT ) / 2 );
    fPreferencesWindow = new PreferencesWindow( p_intf, window_rect, _("Preferences") );
    window_rect.Set( screen_rect.right - 500,
                     screen_rect.top + 50,
                     screen_rect.right - 150,
                     screen_rect.top + 250 );
    fPlaylistWindow = new PlayListWindow( window_rect, _("Playlist"), this, p_intf );
    window_rect.Set( screen_rect.right - 550,
                     screen_rect.top + 300,
                     screen_rect.right - 150,
                     screen_rect.top + 500 );
    fMessagesWindow = new MessagesWindow( p_intf, window_rect, _("Messages") );

    // the media control view
    p_mediaControl = new MediaControlView( p_intf, BRect( 0.0, 0.0, 250.0, 50.0 ) );
    p_mediaControl->SetViewColor( ui_color( B_PANEL_BACKGROUND_COLOR ) );

    float width, height;
    p_mediaControl->GetPreferredSize( &width, &height );

    // set up the main menu
    fMenuBar = new BMenuBar( BRect(0.0, 0.0, width, 15.0), "main menu",
                             B_FOLLOW_NONE, B_ITEMS_IN_ROW, false );

    // make menu bar resize to correct height
    float menuWidth, menuHeight;
    fMenuBar->GetPreferredSize( &menuWidth, &menuHeight );
    fMenuBar->ResizeTo( width, menuHeight );    // don't change! it's a workarround!
    // take care of proper size for ourself
    height += fMenuBar->Bounds().Height();
    ResizeTo( width, height );

    p_mediaControl->MoveTo( fMenuBar->Bounds().LeftBottom() + BPoint(0.0, 1.0) );
    AddChild( fMenuBar );


    // Add the file Menu
    BMenu* fileMenu = new BMenu( _("File") );
    fMenuBar->AddItem( fileMenu );
    ADD_ELLIPSIS( _("Open File") );
    fileMenu->AddItem( new BMenuItem( psz_tmp, new BMessage( OPEN_FILE ), 'O') );
    fileMenu->AddItem( new CDMenu( _("Open Disc") ) );
    ADD_ELLIPSIS( _("Open Subtitles") );
    fileMenu->AddItem( new BMenuItem( psz_tmp, new BMessage( LOAD_SUBFILE ) ) );

    fileMenu->AddSeparatorItem();
    ADD_ELLIPSIS( _("About") );
    BMenuItem* item = new BMenuItem( psz_tmp, new BMessage( B_ABOUT_REQUESTED ), 'A');
    item->SetTarget( be_app );
    fileMenu->AddItem( item );
    fileMenu->AddItem( new BMenuItem( _("Quit"), new BMessage( B_QUIT_REQUESTED ), 'Q') );

    fLanguageMenu = new LanguageMenu( p_intf, _("Language"), "audio-es" );
    fSubtitlesMenu = new LanguageMenu( p_intf, _("Subtitles"), "spu-es" );

    /* Add the Audio menu */
    fAudioMenu = new BMenu( _("Audio") );
    fMenuBar->AddItem ( fAudioMenu );
    fAudioMenu->AddItem( fLanguageMenu );
    fAudioMenu->AddItem( fSubtitlesMenu );

    fPrevTitleMI = new BMenuItem( _("Prev Title"), new BMessage( PREV_TITLE ) );
    fNextTitleMI = new BMenuItem( _("Next Title"), new BMessage( NEXT_TITLE ) );
    fPrevChapterMI = new BMenuItem( _("Previous chapter"), new BMessage( PREV_CHAPTER ) );
    fNextChapterMI = new BMenuItem( _("Next chapter"), new BMessage( NEXT_CHAPTER ) );

    /* Add the Navigation menu */
    fNavigationMenu = new BMenu( _("Navigation") );
    fMenuBar->AddItem( fNavigationMenu );
    fNavigationMenu->AddItem( fPrevTitleMI );
    fNavigationMenu->AddItem( fNextTitleMI );
    fNavigationMenu->AddItem( fTitleMenu = new TitleMenu( _("Go to Title"), p_intf ) );
    fNavigationMenu->AddSeparatorItem();
    fNavigationMenu->AddItem( fPrevChapterMI );
    fNavigationMenu->AddItem( fNextChapterMI );
    fNavigationMenu->AddItem( fChapterMenu = new ChapterMenu( _("Go to Chapter"), p_intf ) );

    /* Add the Speed menu */
    fSpeedMenu = new BMenu( _("Speed") );
    fSpeedMenu->SetRadioMode( true );
    fSpeedMenu->AddItem(
        fHeighthMI = new BMenuItem( "1/8x", new BMessage( HEIGHTH_PLAY ) ) );
    fSpeedMenu->AddItem(
        fQuarterMI = new BMenuItem( "1/4x", new BMessage( QUARTER_PLAY ) ) );
    fSpeedMenu->AddItem(
        fHalfMI = new BMenuItem( "1/2x", new BMessage( HALF_PLAY ) ) );
    fSpeedMenu->AddItem(
        fNormalMI = new BMenuItem( "1x", new BMessage( NORMAL_PLAY ) ) );
    fSpeedMenu->AddItem(
        fTwiceMI = new BMenuItem( "2x", new BMessage( TWICE_PLAY ) ) );
    fSpeedMenu->AddItem(
        fFourMI = new BMenuItem( "4x", new BMessage( FOUR_PLAY ) ) );
    fSpeedMenu->AddItem(
        fHeightMI = new BMenuItem( "8x", new BMessage( HEIGHT_PLAY ) ) );
    fMenuBar->AddItem( fSpeedMenu );

    /* Add the Show menu */
    fShowMenu = new BMenu( _("Window") );
    ADD_ELLIPSIS( _("Playlist") );
    fShowMenu->AddItem( new BMenuItem( psz_tmp, new BMessage( OPEN_PLAYLIST ), 'P') );
    ADD_ELLIPSIS( _("Messages") );
    fShowMenu->AddItem( new BMenuItem( psz_tmp, new BMessage( OPEN_MESSAGES ), 'M' ) );
    ADD_ELLIPSIS( _("Preferences") );
    fShowMenu->AddItem( new BMenuItem( psz_tmp, new BMessage( OPEN_PREFERENCES ), 'S' ) );
    fMenuBar->AddItem( fShowMenu );

    // add the media control view after the menubar is complete
    // because it will set the window size limits in AttachedToWindow()
    // and the menubar needs to report the correct PreferredSize()
    AddChild( p_mediaControl );

    /* Prepare fow showing */
    _SetMenusEnabled( false );
    p_mediaControl->SetEnabled( false );

    _RestoreSettings();

    Show();
}

InterfaceWindow::~InterfaceWindow()
{
    if( p_input )
    {
        vlc_object_release( p_input );
    }
    if( p_playlist )
    {
        vlc_object_release( p_playlist );
    }
    if( fPlaylistWindow )
    {
        fPlaylistWindow->ReallyQuit();
    }
    if( fMessagesWindow )
    {
        fMessagesWindow->ReallyQuit();
    }
    if( fPreferencesWindow )
    {
        fPreferencesWindow->ReallyQuit();
    }
    delete fFilePanel;
    delete fSettings;
}

/*****************************************************************************
 * InterfaceWindow::FrameResized
 *****************************************************************************/
void
InterfaceWindow::FrameResized(float width, float height)
{
    BRect r(Bounds());