interface_widgets.cpp 9.54 KB
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/*****************************************************************************
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 * interface_widgets.cpp : Custom widgets for the main interface
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 ****************************************************************************
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 * Copyright (C) 2006 the VideoLAN team
 * $Id$
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 *
 * Authors: Clément Stenac <zorglub@videolan.org>
 *
 * 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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#include "dialogs_provider.hpp"
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#include "qt4.hpp"
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#include "components/interface_widgets.hpp"
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#include "main_interface.hpp"
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#include "input_manager.hpp"
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#include "pixmaps/art.xpm"
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#include <vlc/vout.h>

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#include <QLabel>
#include <QSpacerItem>
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#include <QCursor>
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#include <QPushButton>
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#include <QHBoxLayout>
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#include <QMenu>
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#define ICON_SIZE 128

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/**********************************************************************
 * Video Widget. A simple frame on which video is drawn
 * This class handles resize issues
 **********************************************************************/
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static void *DoRequest( intf_thread_t *, vout_thread_t *, int*,int*,
                        unsigned int *, unsigned int * );
static void DoRelease( intf_thread_t *, void * );
static int DoControl( intf_thread_t *, void *, int, va_list );

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VideoWidget::VideoWidget( intf_thread_t *_p_i ) : QFrame( NULL ), p_intf( _p_i )
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{
    vlc_mutex_init( p_intf, &lock );
    p_vout = NULL;

    setSizePolicy( QSizePolicy::Preferred, QSizePolicy::Preferred );
}

VideoWidget::~VideoWidget()
{
    vlc_mutex_lock( &lock );
    if( p_vout )
    {
        if( !p_intf->psz_switch_intf )
        {
            if( vout_Control( p_vout, VOUT_CLOSE ) != VLC_SUCCESS )
                vout_Control( p_vout, VOUT_REPARENT );
        }
        else
        {
            if( vout_Control( p_vout, VOUT_REPARENT ) != VLC_SUCCESS )
                vout_Control( p_vout, VOUT_CLOSE );
        }
    }
    vlc_mutex_unlock( &lock );
    vlc_mutex_destroy( &lock );
}

QSize VideoWidget::sizeHint() const
{
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    return widgetSize;
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}

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void *VideoWidget::request( vout_thread_t *p_nvout, int *pi_x, int *pi_y,
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                           unsigned int *pi_width, unsigned int *pi_height )
{
    if( p_vout )
    {
        msg_Dbg( p_intf, "embedded video already in use" );
        return NULL;
    }
    p_vout = p_nvout;
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    setMinimumSize( 1,1 );
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    return (void*)winId();
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}

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void VideoWidget::release( void *p_win )
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{
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    p_vout = NULL;
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}
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/**********************************************************************
 * Background Widget. Show a simple image background. Currently,
 * it's a static cone.
 **********************************************************************/
BackgroundWidget::BackgroundWidget( intf_thread_t *_p_i ) :
                                        QFrame( NULL ), p_intf( _p_i )
{
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    setAutoFillBackground( true );
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    plt =  palette();
    plt.setColor( QPalette::Active, QPalette::Window , Qt::black );
    plt.setColor( QPalette::Inactive, QPalette::Window , Qt::black );
    setPalette( plt );

    backgroundLayout = new QHBoxLayout;
    label = new QLabel( "" );
    label->setMaximumHeight( ICON_SIZE );
    label->setMaximumWidth( ICON_SIZE );
    label->setScaledContents( true );
    label->setPixmap( QPixmap( ":/vlc128.png" ) );
    backgroundLayout = new QHBoxLayout;
    backgroundLayout->addWidget( label );
    setLayout( backgroundLayout );
}

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BackgroundWidget::~BackgroundWidget()
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{
    backgroundLayout->takeAt(0);
    delete backgroundLayout;
}

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QSize BackgroundWidget::sizeHint() const
{
    return widgetSize;
}

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void BackgroundWidget::resizeEvent( QResizeEvent *e )
{
    if( e->size().height() < ICON_SIZE -1 )
        label->setMaximumWidth( e->size().height() );
    else
        label->setMaximumWidth( ICON_SIZE );
}
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/**********************************************************************
 * Visualization selector panel
 **********************************************************************/
VisualSelector::VisualSelector( intf_thread_t *_p_i ) :
                                                QFrame( NULL ), p_intf( _p_i )
{
    QHBoxLayout *layout = new QHBoxLayout( this );
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    layout->setMargin( 0 );
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    QPushButton *prevButton = new QPushButton( "Prev" );
    QPushButton *nextButton = new QPushButton( "Next");
    layout->addWidget( prevButton );
    layout->addWidget( nextButton );
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    layout->addItem( new QSpacerItem( 40,20,
                              QSizePolicy::Expanding, QSizePolicy::Minimum) );
    layout->addWidget( new QLabel( qtr("Current visualization:") ) );

    current = new QLabel( qtr( "None" ) );
    layout->addWidget( current );

    BUTTONACT( prevButton, prev() );
    BUTTONACT( nextButton, next() );

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    setLayout( layout );
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    setMaximumHeight( 35 );
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}

VisualSelector::~VisualSelector()
{
}

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void VisualSelector::prev()
{
    char *psz_new = aout_VisualPrev( p_intf );
    if( psz_new )
    {
        current->setText( qfu( psz_new ) );
        free( psz_new );
    }
}

void VisualSelector::next()
{
    char *psz_new = aout_VisualNext( p_intf );
    if( psz_new )
    {
        current->setText( qfu( psz_new ) );
        free( psz_new );
    }
}

/**********************************************************************
 * More controls
 **********************************************************************/
ControlsWidget::ControlsWidget( intf_thread_t *_p_i ) :
                                           QFrame( NULL ), p_intf( _p_i )
{
    QHBoxLayout *layout = new QHBoxLayout( this );
    layout->setMargin( 0 );

    slowerButton = new QPushButton( "S" );
    BUTTON_SET_ACT( slowerButton, "S", qtr("Slower" ), slower() );
    layout->addWidget( slowerButton );
    slowerButton->setMaximumWidth( 35 );

    normalButton = new QPushButton( "N" );
    BUTTON_SET_ACT( normalButton, "N", qtr("Normal rate"), normal() );
    layout->addWidget( normalButton );
    normalButton->setMaximumWidth( 35 );

    fasterButton = new QPushButton( "F" );
    BUTTON_SET_ACT( fasterButton, "F", qtr("Faster" ), faster() );
    layout->addWidget( fasterButton );
    fasterButton->setMaximumWidth( 35 );

    layout->addItem( new QSpacerItem( 100,20,
                              QSizePolicy::Expanding, QSizePolicy::Minimum) );

    snapshotButton = new QPushButton( "S" );
    BUTTON_SET_ACT( snapshotButton, "S", qtr("Take a snapshot"), snapshot() );
    layout->addWidget( snapshotButton );
    snapshotButton->setMaximumWidth( 35 );

    fullscreenButton = new QPushButton( "F" );
    BUTTON_SET_ACT( fullscreenButton, "F", qtr("Fullscreen"), fullscreen() );
    layout->addWidget( fullscreenButton );
    fullscreenButton->setMaximumWidth( 35 );
}

ControlsWidget::~ControlsWidget()
{
}

void ControlsWidget::enableInput( bool enable )
{
    slowerButton->setEnabled( enable );
    normalButton->setEnabled( enable );
    fasterButton->setEnabled( enable );
}
void ControlsWidget::enableVideo( bool enable )
{
    snapshotButton->setEnabled( enable );
    fullscreenButton->setEnabled( enable );
}

void ControlsWidget::slower()
{
    THEMIM->getIM()->slower();
}

void ControlsWidget::faster()
{
    THEMIM->getIM()->faster();
}

void ControlsWidget::normal()
{
    THEMIM->getIM()->normalRate();
}

void ControlsWidget::snapshot()
{
}

void ControlsWidget::fullscreen()
{
}

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/**********************************************************************
 * Playlist Widget. The embedded playlist
 **********************************************************************/
#include "components/playlist/panels.hpp"
#include "components/playlist/selector.hpp"

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PlaylistWidget::PlaylistWidget( intf_thread_t *_p_intf ) :
                                BasePlaylistWidget ( _p_intf)
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{
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    QVBoxLayout *left = new QVBoxLayout( );

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    selector = new PLSelector( this, p_intf, THEPL );
    selector->setMaximumWidth( 130 );
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    left->addWidget( selector );

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    art = new QLabel( "" );
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    art->setMaximumHeight( 128 );
    art->setMaximumWidth( 128 );
    art->setScaledContents( true );
    art->setPixmap( QPixmap( art_xpm ) ); //":/vlc128.png" ) );
    left->addWidget( art );
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    playlist_item_t *p_root = playlist_GetPreferredNode( THEPL,
                                                THEPL->p_local_category );

    rightPanel = qobject_cast<PLPanel *>(new StandardPLPanel( this,
                              p_intf, THEPL, p_root ) );

    CONNECT( selector, activated( int ), rightPanel, setRoot( int ) );
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    CONNECT( qobject_cast<StandardPLPanel *>(rightPanel)->model, artSet( QString ) , this, setArt( QString ) );

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    connect( selector, SIGNAL(activated( int )),
             this, SIGNAL( rootChanged( int ) ) );
    emit rootChanged( p_root->i_id );
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    QHBoxLayout *layout = new QHBoxLayout(this);
    layout->addLayout( left, 0 );
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    layout->addWidget( rightPanel, 10 );
    setLayout( layout );
}

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void PlaylistWidget::setArt( QString url )
{
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    if( prevArt != url )
    {
        art->setPixmap( QPixmap( url ) );
        prevArt = url;
    }
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}

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PlaylistWidget::~PlaylistWidget()
{
}

QSize PlaylistWidget::sizeHint() const
{
    return widgetSize;
}