playlist.cpp

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/*****************************************************************************
 * playlist.cpp : wxWindows plugin for vlc
 *****************************************************************************
 * Copyright (C) 2000-2004 VideoLAN
 * $Id: playlist.cpp,v 1.49 2004/02/29 14:05:45 zorglub Exp $
 *
 * Authors: Olivier Teuli鑢e <[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 <vlc/vlc.h>
#include <vlc/intf.h>

#include "wxwindows.h"

/* Callback prototype */
int PlaylistChanged( vlc_object_t *p_this, const char *psz_variable,
                     vlc_value_t old_val, vlc_value_t new_val, void *param );
int PlaylistNext( vlc_object_t *p_this, const char *psz_variable,
                     vlc_value_t old_val, vlc_value_t new_val, void *param );
int ItemChanged( vlc_object_t *p_this, const char *psz_variable,
                     vlc_value_t old_val, vlc_value_t new_val, void *param );

/*****************************************************************************
 * Event Table.
 *****************************************************************************/

/* IDs for the controls and the menu commands */
enum
{
    /* menu items */
    AddFile_Event = 1,
    AddMRL_Event,
    Close_Event,
    Open_Event,
    Save_Event,

    SortTitle_Event,
    RSortTitle_Event,
    SortAuthor_Event,
    RSortAuthor_Event,
    SortGroup_Event,
    RSortGroup_Event,
    Randomize_Event,

    EnableSelection_Event,
    DisableSelection_Event,

    InvertSelection_Event,
    DeleteSelection_Event,
    Random_Event,
    Loop_Event,
    Repeat_Event,
    SelectAll_Event,

    EnableGroup_Event,
    DisableGroup_Event,

    Up_Event,
    Down_Event,
    Infos_Event,

    PopupPlay_Event,
    PopupDel_Event,
    PopupEna_Event,
    PopupInfo_Event,

    SearchText_Event,
    Search_Event,

    /* controls */
    ListView_Event,

    Browse_Event,  /* For export playlist */

    /* custom events */
    UpdateItem_Event
};

DEFINE_LOCAL_EVENT_TYPE( wxEVT_PLAYLIST );

BEGIN_EVENT_TABLE(Playlist, wxFrame)
    /* Menu events */
    EVT_MENU(AddFile_Event, Playlist::OnAddFile)
    EVT_MENU(AddMRL_Event, Playlist::OnAddMRL)
    EVT_MENU(Close_Event, Playlist::OnClose)
    EVT_MENU(Open_Event, Playlist::OnOpen)
    EVT_MENU(Save_Event, Playlist::OnSave)

    EVT_MENU(SortTitle_Event, Playlist::OnSort)
    EVT_MENU(RSortTitle_Event, Playlist::OnSort)
    EVT_MENU(SortAuthor_Event, Playlist::OnSort)
    EVT_MENU(RSortAuthor_Event, Playlist::OnSort)
    EVT_MENU(SortGroup_Event, Playlist::OnSort)
    EVT_MENU(RSortGroup_Event, Playlist::OnSort)

    EVT_MENU(Randomize_Event, Playlist::OnSort)

    EVT_MENU(EnableSelection_Event, Playlist::OnEnableSelection)
    EVT_MENU(DisableSelection_Event, Playlist::OnDisableSelection)
    EVT_MENU(InvertSelection_Event, Playlist::OnInvertSelection)
    EVT_MENU(DeleteSelection_Event, Playlist::OnDeleteSelection)
    EVT_MENU(SelectAll_Event, Playlist::OnSelectAll)
    EVT_MENU(Infos_Event, Playlist::OnInfos)
    EVT_CHECKBOX(Random_Event, Playlist::OnRandom)
    EVT_CHECKBOX(Repeat_Event, Playlist::OnRepeat)
    EVT_CHECKBOX(Loop_Event, Playlist::OnLoop)

    EVT_MENU(EnableGroup_Event, Playlist::OnEnDis)
    EVT_MENU(DisableGroup_Event, Playlist::OnEnDis)

    /* Listview events */
    EVT_LIST_ITEM_ACTIVATED(ListView_Event, Playlist::OnActivateItem)
    EVT_LIST_COL_CLICK(ListView_Event, Playlist::OnColSelect)
    EVT_LIST_KEY_DOWN(ListView_Event, Playlist::OnKeyDown)
    EVT_LIST_ITEM_RIGHT_CLICK(ListView_Event, Playlist::OnPopup)

    /* Popup events */
    EVT_MENU( PopupPlay_Event, Playlist::OnPopupPlay)
    EVT_MENU( PopupDel_Event, Playlist::OnPopupDel)
    EVT_MENU( PopupEna_Event, Playlist::OnPopupEna)
    EVT_MENU( PopupInfo_Event, Playlist::OnPopupInfo)


    /* Button events */
    EVT_BUTTON( Search_Event, Playlist::OnSearch)
    EVT_BUTTON( Save_Event, Playlist::OnSave)
    EVT_BUTTON( Infos_Event, Playlist::OnInfos)

    EVT_BUTTON( Up_Event, Playlist::OnUp)
    EVT_BUTTON( Down_Event, Playlist::OnDown)

    EVT_TEXT(SearchText_Event, Playlist::OnSearchTextChange)

    /* Custom events */
    EVT_COMMAND(-1, wxEVT_PLAYLIST, Playlist::OnPlaylistEvent)

    /* Special events : we don't want to destroy the window when the user
     * clicks on (X) */
    EVT_CLOSE(Playlist::OnClose)
END_EVENT_TABLE()


/* Event Table for the Newgroup class */
BEGIN_EVENT_TABLE(NewGroup, wxDialog)
    EVT_BUTTON( wxID_OK, NewGroup::OnOk)
    EVT_BUTTON( wxID_CANCEL, NewGroup::OnCancel)
END_EVENT_TABLE()


/*****************************************************************************
 * Constructor.
 *****************************************************************************/
Playlist::Playlist( intf_thread_t *_p_intf, wxWindow *p_parent ):
    wxFrame( p_parent, -1, wxU(_("Playlist")), wxDefaultPosition,
             wxDefaultSize, wxDEFAULT_FRAME_STYLE )
{
    vlc_value_t val;

    /* Initializations */
    iteminfo_dialog = NULL;
    p_intf = _p_intf;
    i_update_counter = 0;
    i_sort_mode = MODE_NONE;
    b_need_update = VLC_FALSE;
    SetIcon( *p_intf->p_sys->p_icon );

    i_title_sorted = 0;
    i_author_sorted = 0;
    i_group_sorted = 0;
    i_duration_sorted = 0;

    var_Create( p_intf, "random", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
    var_Create( p_intf, "loop", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
    var_Create( p_intf, "repeat", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );;

    /* Create our "Manage" menu */
    wxMenu *manage_menu = new wxMenu;
    manage_menu->Append( AddFile_Event, wxU(_("&Simple Add...")) );
    manage_menu->Append( AddMRL_Event, wxU(_("&Add MRL...")) );
    manage_menu->AppendSeparator();
    manage_menu->Append( Open_Event, wxU(_("&Open Playlist...")) );
    manage_menu->Append( Save_Event, wxU(_("&Save Playlist...")) );
    manage_menu->AppendSeparator();
    manage_menu->Append( Close_Event, wxU(_("&Close")) );

    /* Create our "Sort" menu */
    wxMenu *sort_menu = new wxMenu;
    sort_menu->Append( SortTitle_Event, wxU(_("Sort by &title")) );
    sort_menu->Append( RSortTitle_Event, wxU(_("&Reverse sort by title")) );
    sort_menu->AppendSeparator();
    sort_menu->Append( SortAuthor_Event, wxU(_("Sort by &author")) );
    sort_menu->Append( RSortAuthor_Event, wxU(_("Reverse sort by author")) );
    sort_menu->AppendSeparator();
    sort_menu->Append( SortGroup_Event, wxU(_("Sort by &group")) );
    sort_menu->Append( RSortGroup_Event, wxU(_("Reverse sort by group")) );
    sort_menu->AppendSeparator();
    sort_menu->Append( Randomize_Event, wxU(_("&Shuffle Playlist")) );

    /* Create our "Selection" menu */
    wxMenu *selection_menu = new wxMenu;
    selection_menu->Append( EnableSelection_Event, wxU(_("&Enable")) );
    selection_menu->Append( DisableSelection_Event, wxU(_("&Disable")) );
    selection_menu->AppendSeparator();
    selection_menu->Append( InvertSelection_Event, wxU(_("&Invert")) );
    selection_menu->Append( DeleteSelection_Event, wxU(_("D&elete")) );
    selection_menu->Append( SelectAll_Event, wxU(_("&Select All")) );

    /* Create our "Group" menu */
    wxMenu *group_menu = new wxMenu;
    group_menu->Append( EnableGroup_Event, wxU(_("&Enable all group items")) );
    group_menu->Append( DisableGroup_Event,
                        wxU(_("&Disable all group items")) );

    /* Append the freshly created menus to the menu bar */
    wxMenuBar *menubar = new wxMenuBar( wxMB_DOCKABLE );
    menubar->Append( manage_menu, wxU(_("&Manage")) );
    menubar->Append( sort_menu, wxU(_("S&ort")) );
    menubar->Append( selection_menu, wxU(_("&Selection")) );
    menubar->Append( group_menu, wxU(_("&Groups")) );

    /* Attach the menu bar to the frame */
    SetMenuBar( menubar );

    /* Create the popup menu */
    popup_menu = new wxMenu;
    popup_menu->Append( PopupPlay_Event, wxU(_("Play")) );
    popup_menu->Append( PopupDel_Event, wxU(_("Delete")) );
    popup_menu->Append( PopupEna_Event, wxU(_("Toggle enabled")) );
    popup_menu->Append( PopupInfo_Event, wxU(_("Info")) );

    /* Create a panel to put everything in */
    wxPanel *playlist_panel = new wxPanel( this, -1 );
    playlist_panel->SetAutoLayout( TRUE );

    /* Create the Random checkbox */
    wxCheckBox *random_checkbox =
        new wxCheckBox( playlist_panel, Random_Event, wxU(_("Random")) );
    var_Get( p_intf, "random", &val );
    vlc_bool_t b_random = val.b_bool;
    random_checkbox->SetValue( b_random == VLC_FALSE ? 0 : 1 );

    /* Create the Loop Checkbox */
    wxCheckBox *loop_checkbox =
        new wxCheckBox( playlist_panel, Loop_Event, wxU(_("Repeat All")) );
    var_Get( p_intf, "loop", &val );
    int b_loop = val.b_bool ;
    loop_checkbox->SetValue( b_loop );

    /* Create the Repeat one checkbox */
    wxCheckBox *repeat_checkbox =
        new wxCheckBox( playlist_panel, Repeat_Event, wxU(_("Repeat One")) );
    var_Get( p_intf, "repeat", &val );
    int b_repeat = val.b_bool ;
    repeat_checkbox->SetValue( b_repeat );

    /* Create the Search Textbox */
    search_text =
        new wxTextCtrl( playlist_panel, SearchText_Event, wxT(""),
                        wxDefaultPosition, wxSize(140, -1),
                        wxTE_PROCESS_ENTER);

    /* Create the search button */
    search_button =
        new wxButton( playlist_panel, Search_Event, wxU(_("Search")) );


    /* Create the listview */
    /* FIXME: the given size is arbitrary, and prevents us from resizing
     * the window to smaller dimensions. But the sizers don't seem to adjust
     * themselves to the size of a listview, and with a wxDefaultSize the
     * playlist window is ridiculously small */
    listview = new wxListView( playlist_panel, ListView_Event,
                               wxDefaultPosition, wxSize( 500, 300 ),
                               wxLC_REPORT | wxSUNKEN_BORDER );
    listview->InsertColumn( 0, wxU(_("Name")) );
    listview->InsertColumn( 1, wxU(_("Author")) );
    listview->InsertColumn( 2, wxU(_("Duration")) );
    listview->InsertColumn( 3, wxU(_("Group")) );
    listview->SetColumnWidth( 0, 270 );
    listview->SetColumnWidth( 1, 150 );
    listview->SetColumnWidth( 2, 80 );

    /* Create the Up-Down buttons */
    wxButton *up_button =
        new wxButton( playlist_panel, Up_Event, wxU(_("Up") ) );

    wxButton *down_button =
        new wxButton( playlist_panel, Down_Event, wxU(_("Down") ) );

    /* Create the iteminfo button */
    wxButton *iteminfo_button =
        new wxButton( playlist_panel, Infos_Event, wxU(_("Item info") ) );

    /* Place everything in sizers */
    wxBoxSizer *button_sizer = new wxBoxSizer( wxHORIZONTAL );
    button_sizer->Add( iteminfo_button, 0, wxALIGN_CENTER|wxLEFT , 5);
    button_sizer->Layout();

    wxBoxSizer *updown_sizer = new wxBoxSizer( wxHORIZONTAL );
    updown_sizer->Add( up_button, 0, wxALIGN_LEFT|wxRIGHT, 3);
    updown_sizer->Add( down_button, 0, wxALIGN_LEFT|wxLEFT, 3);
    updown_sizer->Layout();

    wxBoxSizer *checkbox_sizer = new wxBoxSizer( wxHORIZONTAL );
    checkbox_sizer->Add( random_checkbox, 0,
                         wxEXPAND | wxALIGN_RIGHT | wxALL, 5);
    checkbox_sizer->Add( loop_checkbox, 0,
                         wxEXPAND | wxALIGN_RIGHT | wxALL, 5);
    checkbox_sizer->Add( repeat_checkbox, 0,
                         wxEXPAND | wxALIGN_RIGHT | wxALL, 5);
    checkbox_sizer->Layout();

    wxBoxSizer *search_sizer = new wxBoxSizer( wxHORIZONTAL );
    search_sizer->Add( search_text, 0, wxRIGHT|wxALIGN_CENTER, 3);
    search_sizer->Add( search_button, 0, wxLEFT|wxALIGN_CENTER, 3);
    search_sizer->Layout();

    /* The top and bottom sizers */
    wxBoxSizer *top_sizer = new wxBoxSizer( wxHORIZONTAL );
    top_sizer->Add( checkbox_sizer, 1, wxLEFT|wxRIGHT|wxALIGN_LEFT, 4 );
    top_sizer->Add( search_sizer, 1, wxLEFT|wxRIGHT|wxALIGN_RIGHT, 4 );
    top_sizer->Layout();

    wxBoxSizer *bottom_sizer = new wxBoxSizer( wxHORIZONTAL );
    bottom_sizer->Add( updown_sizer, 0,
                       wxEXPAND |wxRIGHT | wxLEFT | wxALIGN_LEFT, 4 );
    bottom_sizer->Add( button_sizer , 0,
                       wxEXPAND|wxLEFT | wxRIGHT | wxALIGN_RIGHT, 4 );
    bottom_sizer->Layout();

    wxBoxSizer *main_sizer = new wxBoxSizer( wxVERTICAL );

    wxBoxSizer *panel_sizer = new wxBoxSizer( wxVERTICAL );
    panel_sizer->Add( top_sizer, 0, wxEXPAND | wxALL, 5 );
    panel_sizer->Add( listview, 1, wxEXPAND | wxALL, 5 );
    panel_sizer->Add( bottom_sizer, 0 , wxEXPAND | wxALL, 5);
    panel_sizer->Layout();

    playlist_panel->SetSizerAndFit( panel_sizer );
    main_sizer->Add( playlist_panel, 1, wxGROW, 0 );
    main_sizer->Layout();
    SetSizerAndFit( main_sizer );

#if !defined(__WXX11__)
    /* Associate drop targets with the playlist */
    SetDropTarget( new DragAndDrop( p_intf, VLC_TRUE ) );
#endif

    playlist_t *p_playlist =
        (playlist_t *)vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
                                       FIND_ANYWHERE );
    if( p_playlist == NULL )
    {
        return;
    }

    /* We want to be noticed of playlist changes */

    /* Some global changes happened -> Rebuild all */
    var_AddCallback( p_playlist, "intf-change", PlaylistChanged, this );

    /* We went to the next item */
    var_AddCallback( p_playlist, "playlist-current", PlaylistNext, this );

    /* One item has been updated */
    var_AddCallback( p_playlist, "item-change", ItemChanged, this );


    vlc_object_release( p_playlist );

    /* Update the playlist */
    Rebuild();
}

Playlist::~Playlist()
{
    playlist_t *p_playlist =
        (playlist_t *)vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
                                       FIND_ANYWHERE );
    if( p_playlist == NULL )
    {
        return;
    }

    delete iteminfo_dialog;

    var_DelCallback( p_playlist, "item-change", ItemChanged, this );
    var_DelCallback( p_playlist, "playlist-current", PlaylistNext, this );
    var_DelCallback( p_playlist, "intf-change", PlaylistChanged, this );
    vlc_object_release( p_playlist );
}

/**********************************************************************
 * Update one playlist item
 **********************************************************************/
void Playlist::UpdateItem( int i )
{
    if( i < 0 ) return; /* Sanity check */

    playlist_t *p_playlist =
        (playlist_t *)vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
                                       FIND_ANYWHERE );

    if( p_playlist == NULL )
    {
        return;
    }

    playlist_item_t *p_item = playlist_ItemGetByPos( p_playlist, i );

    if( !p_item )
    {
        vlc_object_release(p_playlist);
        return;
    }

    listview->SetItem( i, 0, wxL2U(p_item->psz_name) );
    listview->SetItem( i, 1, wxU( playlist_ItemGetInfo( p_item,
                                       _("General") , _("Author") ) ) );
    char *psz_group = playlist_FindGroup(p_playlist,
                                         p_item->i_group);
    listview->SetItem( i, 3,
             wxL2U( psz_group ? psz_group : _("Normal") ) );

    if( p_item->b_enabled == VLC_FALSE )
    {
        wxListItem listitem;
        listitem.m_itemId = i;
        listitem.SetTextColour( *wxLIGHT_GREY);
        listview->SetItem(listitem);