interface.cpp

uclinux 下的vlc播放器源代码

/*****************************************************************************
 * interface.cpp : wxWidgets plugin for vlc
 *****************************************************************************
 * Copyright (C) 2000-2006 the VideoLAN team
 * $Id: interface.cpp 16457 2006-08-31 20:51:12Z hartman $
 *
 * Authors: Gildas Bazin <[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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#include "interface.hpp"
#include "playlist_manager.hpp"
#include "extrapanel.hpp"
#include "timer.hpp"
#include "video.hpp"
#include <vlc_keys.h>

#include "charset.h"

#include <vlc/aout.h>
#include "charset.h"

#include <vlc_interaction.h>

#include <wx/splitter.h>

/* include the toolbar graphics */
#include "bitmaps/play.xpm"
#include "bitmaps/pause.xpm"
#include "bitmaps/stop.xpm"
#include "bitmaps/prev.xpm"
#include "bitmaps/next.xpm"
#include "bitmaps/eject.xpm"
#include "bitmaps/slow.xpm"
#include "bitmaps/fast.xpm"
#include "bitmaps/playlist.xpm"
#include "bitmaps/playlist_small.xpm"
#include "bitmaps/speaker.xpm"
#include "bitmaps/speaker_mute.xpm"

#define TOOLBAR_BMP_WIDTH 16
#define TOOLBAR_BMP_HEIGHT 16

/* include the icon graphic */
#include "../../../share/vlc32x32.xpm"
/* include a small icon graphic for the systray icon */
#ifdef wxHAS_TASK_BAR_ICON
#include "../../../share/vlc16x16.xpm"
#endif

/*****************************************************************************
 * Local prototypes
 *****************************************************************************/
static int InteractCallback( vlc_object_t *, const char *, vlc_value_t,
                             vlc_value_t, void *);

/*****************************************************************************
 * Local class declarations.
 *****************************************************************************/
class wxMenuExt: public wxMenu
{
public:
    /* Constructor */
    wxMenuExt( wxMenu* parentMenu, int id, const wxString& text,
                   const wxString& helpString, wxItemKind kind,
                   char *_psz_var, int _i_object_id, vlc_value_t _val,
                   int _i_val_type );

    virtual ~wxMenuExt() {};

    char *psz_var;
    int  i_val_type;
    int  i_object_id;
    vlc_value_t val;

private:

};

class wxVolCtrl;
class VLCVolCtrl : public wxControl
{
public:
    VLCVolCtrl( intf_thread_t *p_intf, wxWindow *p_parent );
    virtual ~VLCVolCtrl() {};

    virtual void OnPaint( wxPaintEvent &event );
    void OnChange( wxMouseEvent& event );
    void UpdateVolume();

  private:
    DECLARE_EVENT_TABLE()

    wxVolCtrl *gauge;
    int i_y_offset;
    vlc_bool_t b_mute;
    intf_thread_t *p_intf;
};

BEGIN_EVENT_TABLE(VLCVolCtrl, wxControl)
    EVT_PAINT(VLCVolCtrl::OnPaint)

    /* Mouse events */
    EVT_LEFT_UP(VLCVolCtrl::OnChange)
END_EVENT_TABLE()

class Splitter : public wxSplitterWindow
{
public:
    Splitter( wxWindow *p_parent, intf_thread_t *_p_intf )
      : wxSplitterWindow( p_parent, -1, wxDefaultPosition, wxSize(0,0),
#if defined( __WXMSW__ )
                          wxCLIP_CHILDREN ),
#else
                          wxCLIP_CHILDREN | wxSP_3DSASH ),
#endif
        p_intf(_p_intf), b_video(0), i_delay(0)
    {
        SetSashSize( 0 );

        wxSize size = wxSize(-1, 150);
        wxPoint p = wxPoint(0,0);
        bool b_dummy;
        WindowSettings *ws = p_intf->p_sys->p_window_settings;
        ws->GetSettings( WindowSettings::ID_SMALL_PLAYLIST, b_dummy, p, size );

        i_width = size.GetWidth();
        i_sash_position = size.GetHeight();
        b_show_on_start = !!p.x;
    }

    virtual ~Splitter()
    {
        WindowSettings *ws = p_intf->p_sys->p_window_settings;
        ws->SetSettings( WindowSettings::ID_SMALL_PLAYLIST, true,
                         wxPoint(!!GetWindow2(),0),
                         wxSize(i_width, i_sash_position) );
    };

    virtual bool Split( wxWindow* window1, wxWindow* window2 )
    {
        SetSashSize( 0 );
        wxSize size = wxSize( i_width, i_sash_position );
        if( window2->GetSizer() ) window2->GetSizer()->SetMinSize( size );

        return wxSplitterWindow::SplitHorizontally( window1, window2,
                                                    -i_sash_position );
    }

    virtual bool Unsplit( wxWindow* window )
    {
        SetSashSize( 0 );
        return wxSplitterWindow::Unsplit( window );
    }

    bool ShowOnStart() { return b_show_on_start; }

private:
    DECLARE_EVENT_TABLE()

    void OnSize( wxSizeEvent &event )
    {
        /* If we display video, then resize the video window */
        if( GetWindow2() &&
            p_intf->p_sys->p_video_window && p_intf->p_sys->p_video_sizer &&
            p_intf->p_sys->p_video_sizer->GetMinSize() != wxSize(0,0) )
        {
            if( !b_video ) i_delay = mdate() + 1000000;
            b_video = VLC_TRUE;

            SetSashSize( -1 );

#if defined( __WXMSW__ )
            SetSashPosition( event.GetSize().GetHeight() - i_sash_position );
#else
            SetSashPosition( event.GetSize().GetHeight() -
                             i_sash_position - GetSashSize() );
#endif
        }
        else if( GetWindow2() && GetWindow1() && GetWindow1()->GetSizer() )
        {
            wxSize size = GetWindow1()->GetSizer()->GetMinSize();

            if( b_video ) i_delay = mdate() + 1000000;
            b_video = VLC_FALSE;

            if( event.GetSize().GetHeight() - size.GetHeight() )
            {
                SetSashSize( 0 );

                SetSashPosition( size.GetHeight() ? size.GetHeight() : 1 );

                if( i_delay < mdate() )
                {
                    i_sash_position = event.GetSize().GetHeight() -
                        size.GetHeight();
                    i_width = event.GetSize().GetWidth();

                    size = wxSize( i_width, i_sash_position );
                    if( GetWindow2()->GetSizer() )
                        GetWindow2()->GetSizer()->SetMinSize( size );
                }
            }
        }

        event.Skip();
    }

    void OnSashPosChanged( wxSplitterEvent &event )
    {
        if( !GetSize().GetHeight() ){ event.Skip(); return; }

        if( i_delay < mdate() )
        {
            i_sash_position = GetSize().GetHeight() - event.GetSashPosition();

            wxSize size = wxSize( i_width, i_sash_position );
            if( GetWindow2()->GetSizer() )
                GetWindow2()->GetSizer()->SetMinSize( size );
        }
        event.Skip();
    }

    intf_thread_t *p_intf;
    int i_sash_position;
    int i_width;
    vlc_bool_t b_video;
    mtime_t i_delay;
    vlc_bool_t b_show_on_start;
};

BEGIN_EVENT_TABLE(Splitter, wxSplitterWindow)
    EVT_SIZE( Splitter::OnSize )
    EVT_SPLITTER_SASH_POS_CHANGED(-1, Splitter::OnSashPosChanged)
END_EVENT_TABLE()

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

DEFINE_LOCAL_EVENT_TYPE( wxEVT_INTF );

/* IDs for the controls and the menu commands */
enum
{
    /* menu items */
    MenuDummy_Event = wxID_HIGHEST + 1000,
    Exit_Event = wxID_HIGHEST,
    OpenFileSimple_Event,
    OpenAdv_Event,
    OpenFile_Event,
    OpenDir_Event,
    OpenDisc_Event,
    OpenNet_Event,
    OpenCapture_Event,
    OpenSat_Event,
    OpenOther_Event,
    EjectDisc_Event,

    Wizard_Event,

    Playlist_Event,
    PlaylistSmall_Event,
    Logs_Event,
    FileInfo_Event,

    Prefs_Event,
    Extended_Event,
    Bookmarks_Event,
    Skins_Event,

    StopStream_Event,
    PlayStream_Event,
    PrevStream_Event,
    NextStream_Event,
    SlowStream_Event,
    FastStream_Event,

    /* it is important for the id corresponding to the "About" command to have
     * this standard value as otherwise it won't be handled properly under Mac
     * (where it is special and put into the "Apple" menu) */
    About_Event = wxID_ABOUT,
    UpdateVLC_Event,
    VLM_Event,

    Iconize_Event,
};

DEFINE_LOCAL_EVENT_TYPE( wxEVT_INTERACTION );

BEGIN_EVENT_TABLE(Interface, wxFrame)
    /* Menu events */
    EVT_MENU(Exit_Event, Interface::OnExit)
    EVT_MENU(About_Event, Interface::OnAbout)
    EVT_MENU(UpdateVLC_Event, Interface::OnShowDialog)
    EVT_MENU(VLM_Event, Interface::OnShowDialog)

    EVT_MENU(Playlist_Event, Interface::OnShowDialog)
    EVT_MENU(PlaylistSmall_Event, Interface::OnSmallPlaylist)
    EVT_MENU(Logs_Event, Interface::OnShowDialog)
    EVT_MENU(FileInfo_Event, Interface::OnShowDialog)
    EVT_MENU(Prefs_Event, Interface::OnShowDialog)

    EVT_MENU_OPEN(Interface::OnMenuOpen)

    EVT_MENU( Extended_Event, Interface::OnExtended )

    EVT_MENU( Bookmarks_Event, Interface::OnShowDialog)

#if defined( __WXMSW__ ) || defined( __WXMAC__ )
    EVT_CONTEXT_MENU(Interface::OnContextMenu2)
#endif
    EVT_RIGHT_UP(Interface::OnContextMenu)

    /* Toolbar events */
    EVT_MENU(OpenFileSimple_Event, Interface::OnShowDialog)
    EVT_MENU(OpenAdv_Event, Interface::OnShowDialog)
    EVT_MENU(OpenFile_Event, Interface::OnShowDialog)
    EVT_MENU(OpenDir_Event, Interface::OnShowDialog)
    EVT_MENU(OpenDisc_Event, Interface::OnShowDialog)
    EVT_MENU(OpenNet_Event, Interface::OnShowDialog)
    EVT_MENU(OpenCapture_Event, Interface::OnShowDialog)
    EVT_MENU(OpenSat_Event, Interface::OnShowDialog)
    EVT_MENU(Wizard_Event, Interface::OnShowDialog)
    EVT_MENU(StopStream_Event, Interface::OnStopStream)
    EVT_MENU(PlayStream_Event, Interface::OnPlayStream)
    EVT_MENU(PrevStream_Event, Interface::OnPrevStream)
    EVT_MENU(NextStream_Event, Interface::OnNextStream)
    EVT_MENU(SlowStream_Event, Interface::OnSlowStream)
    EVT_MENU(FastStream_Event, Interface::OnFastStream)

    /* Custom events */
    EVT_COMMAND(0, wxEVT_INTF, Interface::OnControlEvent)
    EVT_COMMAND(1, wxEVT_INTF, Interface::OnControlEvent)

    EVT_COMMAND( -1, wxEVT_INTERACTION, Interface::OnInteraction )
END_EVENT_TABLE()

/*****************************************************************************
 * Constructor.
 *****************************************************************************/
Interface::Interface( intf_thread_t *_p_intf, long style ):
    wxFrame( NULL, -1, wxT("VLC media player"),
             wxDefaultPosition, wxSize(700,100), style )
{
    /* Initializations */
    p_intf = _p_intf;
    b_extra = VLC_FALSE;
    extra_frame = 0;
    playlist_manager = 0;
    i_update_counter = 0;


    /* Give our interface a nice little icon */
    SetIcon( wxIcon( vlc_xpm ) );

    /* Create a splitter window that will fill in the interface window.
     * We need a splitter bar in order to make the embedded playlist
     * resizable. */
    splitter = new Splitter( this, p_intf );
    main_sizer = new wxBoxSizer( wxVERTICAL );
    main_sizer->Add( splitter, 1, wxEXPAND );
    SetSizer( main_sizer );

    /* Create a main panel that will fill in the interface window */
    main_panel = new wxPanel( splitter, -1, wxPoint(0,0), wxSize(0,0),
                              wxCLIP_CHILDREN );
    main_panel->SetFocus();

#if defined(__WXGTK20__) && wxCHECK_VERSION(2,5,6)
    /* As ugly as your butt! Please remove when wxWidgets 2.6 fixed their
     * Accelerators bug. */
    main_panel->m_imData = 0;
    m_imData = 0;
#endif

    /* Create a sizer for the main frame */
    panel_sizer = new wxBoxSizer( wxVERTICAL );
    main_panel->SetSizer( panel_sizer );

    /* Put this in the splitter */
    splitter->Initialize( main_panel );

/* wxCocoa pretends to support this, but at least 2.6.x doesn't */
#ifndef __APPLE__
#ifdef wxHAS_TASK_BAR_ICON
    /* Systray integration */
    p_systray = NULL;
    if( config_GetInt( p_intf, "wx-systray" ) )
    {
        p_systray = new Systray( this, p_intf );
    }
#endif
#endif

    /* Creation of the menu bar */
    CreateOurMenuBar();

    /* Creation of the tool bar */
    CreateOurToolBar();

    /* Creation of the status bar
     * Helptext for menu items and toolbar tools will automatically get
     * displayed here. */
    int i_status_width[3] = {100, 40, -1};
    statusbar = CreateStatusBar( 3 );                            /* 2 fields */
    statusbar->SetStatusWidths( 3, i_status_width );
    statusbar->SetStatusText( wxString::Format(wxT("x%.2f"), 1.0), 1 );

    /* Get minimum window size to prevent user from glitching it */
    splitter->SetSizeHints( -1, 0 );
    panel_sizer->Layout(); panel_sizer->Fit( main_panel );
    main_sizer->Layout(); main_sizer->Fit( this );
    main_min_size = GetSize();
    /* FIXME HACK as far as i understan (i.e. not a lot) the toolbar
     * doesn't take the labels into account when it returns its size */

    if( config_GetInt(p_intf, "wx-labels") )
    {
        main_min_size.SetWidth(800);
    }
    splitter->SetSizeHints( -1, -1 );

    /* Video window */
    video_window = 0;
    if( config_GetInt( p_intf, "wx-embed" ) )
    {
        video_window = CreateVideoWindow( p_intf, main_panel );
        panel_sizer->Add( p_intf->p_sys->p_video_sizer, 1, wxEXPAND, 0 );
    }

    /* Creation of the input manager panel */
    input_manager = new InputManager( p_intf, this, main_panel );
    panel_sizer->Add( input_manager, 0, wxEXPAND , 0 );

    /* Layout everything */
    splitter->SetSizeHints( -1, 0 );
    panel_sizer->Layout(); panel_sizer->Fit( main_panel );
    main_sizer->Layout(); main_sizer->Fit( this );
    splitter->SetSizeHints( -1, -1 );

#if wxUSE_DRAG_AND_DROP
    /* Associate drop targets with the main interface */
    SetDropTarget( new DragAndDrop( p_intf ) );
#endif

    SetupHotkeys();

    /* Start timer */
    timer = new Timer( p_intf, this );

    /* Restore previous position / settings */
    WindowSettings *ws = p_intf->p_sys->p_window_settings;
    wxPoint p;
    wxSize s;
    bool b_shown;

    ws->SetScreen( wxSystemSettings::GetMetric( wxSYS_SCREEN_X ),
                   wxSystemSettings::GetMetric( wxSYS_SCREEN_Y ) );

    if( ws->GetSettings( WindowSettings::ID_MAIN, b_shown, p, s ) ) Move( p );

    /* Show extended GUI if requested */
    wxCommandEvent dummy;
    if( config_GetInt( p_intf, "wx-extended" ) ) OnExtended( dummy );

    SetIntfMinSize();

    var_Create( p_intf, "interaction", VLC_VAR_ADDRESS );
    var_AddCallback( p_intf, "interaction", InteractCallback, this );
    p_intf->b_interaction = VLC_TRUE;

    /* Show embedded playlist if requested */
    if( splitter->ShowOnStart() ) OnSmallPlaylist( dummy );
}

Interface::~Interface()
{
    WindowSettings *ws = p_intf->p_sys->p_window_settings;

    if( !IsIconized() )
    {
        ws->SetSettings( WindowSettings::ID_MAIN, true,
                         GetPosition(), GetSize() );
    }

    PopEventHandler(true);

    if( video_window ) delete video_window;

/* wxCocoa pretends to support this, but at least 2.6.x doesn't */
#ifndef __APPLE__
#ifdef wxHAS_TASK_BAR_ICON
    if( p_systray ) delete p_systray;