modules/gui/qt/components/interface_widgets.cpp

   1 /*****************************************************************************
   2  * interface_widgets.cpp : Custom widgets for the main interface
   3  ****************************************************************************
   4  * Copyright (C) 2006-2010 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *          Jean-Baptiste Kempf <jb@videolan.org>
   9  *          Rafaël Carré <funman@videolanorg>
  10  *          Ilkka Ollakka <ileoo@videolan.org>
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * ( at your option ) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  25  *****************************************************************************/
  26
  27 #ifdef HAVE_CONFIG_H
  28 # include "config.h"
  29 #endif
  30
  31 #include "qt.hpp"
  32 #include "components/interface_widgets.hpp"
  33 #include "dialogs_provider.hpp"
  34 #include "util/customwidgets.hpp"               // qtEventToVLCKey, QVLCStackedWidget
  35
  36 #include "menus.hpp"             /* Popup menu on bgWidget */
  37
  38 #include <QLabel>
  39 #include <QToolButton>
  40 #include <QPalette>
  41 #include <QEvent>
  42 #include <QResizeEvent>
  43 #include <QDate>
  44 #include <QMenu>
  45 #include <QWidgetAction>
  46 #include <QDesktopWidget>
  47 #include <QPainter>
  48 #include <QTimer>
  49 #include <QSlider>
  50 #include <QBitmap>
  51 #include <QUrl>
  52
  53 #if defined (QT5_HAS_X11)
  54 # include <X11/Xlib.h>
  55 # include <QX11Info>
  56 # if defined(QT5_HAS_XCB)
  57 #  include <xcb/xproto.h>
  58 # endif
  59 #endif
  60 #ifdef QT5_HAS_WAYLAND
  61 # include QPNI_HEADER
  62 # include <QWindow>
  63 #endif
  64
  65 #if defined(_WIN32)
  66 #include <QWindow>
  67 #include <qpa/qplatformnativeinterface.h>
  68 #endif
  69
  70 #include <math.h>
  71 #include <assert.h>
  72
  73 #include <vlc_vout.h>
  74 #include <vlc_vout_window.h>
  75
  76 /**********************************************************************
  77  * Video Widget. A simple frame on which video is drawn
  78  * This class handles resize issues
  79  **********************************************************************/
  80
  81 VideoWidget::VideoWidget( intf_thread_t *_p_i, QWidget* p_parent )
  82             : QFrame( p_parent ) , p_intf( _p_i )
  83 {
  84     /* Set the policy to expand in both directions */
  85     // setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Expanding );
  86
  87     layout = new QHBoxLayout( this );
  88     layout->setContentsMargins( 0, 0, 0, 0 );
  89     stable = NULL;
  90     p_window = NULL;
  91     show();
  92 }
  93
  94 VideoWidget::~VideoWidget()
  95 {
  96     /* Ensure we are not leaking the video output. This would crash. */
  97     assert( !stable );
  98     assert( !p_window );
  99 }
 100
 101 void VideoWidget::sync( void )
 102 {
 103     /* Make sure the X server has processed all requests.
 104      * This protects other threads using distinct connections from getting
 105      * the video widget window in an inconsistent states. */
 106 #ifdef QT5_HAS_X11
 107     if( QX11Info::isPlatformX11() )
 108         XSync( QX11Info::display(), False );
 109 #endif
 110 }
 111
 112 /**
 113  * Request the video to avoid the conflicts
 114  **/
 115 bool VideoWidget::request( struct vout_window_t *p_wnd )
 116 {
 117     if( stable )
 118     {
 119         msg_Dbg( p_intf, "embedded video already in use" );
 120         return false;
 121     }
 122     assert( !p_window );
 123
 124     /* The owner of the video window needs a stable handle (WinId). Reparenting
 125      * in Qt4-X11 changes the WinId of the widget, so we need to create another
 126      * dummy widget that stays within the reparentable widget. */
 127     stable = new QWidget();
 128     stable->setContextMenuPolicy( Qt::PreventContextMenu );
 129     QPalette plt = palette();
 130     plt.setColor( QPalette::Window, Qt::black );
 131     stable->setPalette( plt );
 132     stable->setAutoFillBackground(true);
 133     /* Force the widget to be native so that it gets a winId() */
 134     stable->setAttribute( Qt::WA_NativeWindow, true );
 135     /* Indicates that the widget wants to draw directly onto the screen.
 136        Widgets with this attribute set do not participate in composition
 137        management */
 138     /* This is currently disabled on X11 as it does not seem to improve
 139      * performance, but causes the video widget to be transparent... */
 140 #if !defined (QT5_HAS_X11)
 141     stable->setAttribute( Qt::WA_PaintOnScreen, true );
 142 #else
 143     stable->setMouseTracking( true );
 144     setMouseTracking( true );
 145 #endif
 146     layout->addWidget( stable );
 147
 148     sync();
 149     p_window = p_wnd;
 150
 151     p_wnd->type = p_intf->p_sys->voutWindowType;
 152     switch( p_wnd->type )
 153     {
 154         case VOUT_WINDOW_TYPE_XID:
 155             p_wnd->handle.xid = stable->winId();
 156             p_wnd->display.x11 = NULL;
 157             break;
 158         case VOUT_WINDOW_TYPE_HWND:
 159             p_wnd->handle.hwnd = (void *)stable->winId();
 160             break;
 161         case VOUT_WINDOW_TYPE_NSOBJECT:
 162             p_wnd->handle.nsobject = (void *)stable->winId();
 163             break;
 164 #ifdef QT5_HAS_WAYLAND
 165         case VOUT_WINDOW_TYPE_WAYLAND:
 166         {
 167             /* Ensure only the video widget is native (needed for Wayland) */
 168             stable->setAttribute( Qt::WA_DontCreateNativeAncestors, true);
 169
 170             QWindow *window = stable->windowHandle();
 171             assert(window != NULL);
 172             window->create();
 173
 174             QPlatformNativeInterface *qni = qApp->platformNativeInterface();
 175             assert(qni != NULL);
 176
 177             p_wnd->handle.wl = static_cast<wl_surface*>(
 178                 qni->nativeResourceForWindow(QByteArrayLiteral("surface"),
 179                                              window));
 180             p_wnd->display.wl = static_cast<wl_display*>(
 181                 qni->nativeResourceForIntegration(QByteArrayLiteral("wl_display")));
 182             break;
 183         }
 184 #endif
 185         default:
 186             vlc_assert_unreachable();
 187     }
 188     return true;
 189 }
 190
 191 QSize VideoWidget::physicalSize() const
 192 {
 193 #ifdef QT5_HAS_X11
 194     if ( QX11Info::isPlatformX11() )
 195     {
 196         Display *p_x_display = QX11Info::display();
 197         Window x_window = stable->winId();
 198         XWindowAttributes x_attributes;
 199
 200         XGetWindowAttributes( p_x_display, x_window, &x_attributes );
 201
 202         return QSize( x_attributes.width, x_attributes.height );
 203     }
 204 #endif
 205 #if defined(_WIN32)
 206     HWND hwnd;
 207     RECT rect;
 208
 209     QWindow *window = windowHandle();
 210     hwnd = static_cast<HWND>(QGuiApplication::platformNativeInterface()->nativeResourceForWindow("handle", window));
 211
 212     GetClientRect(hwnd, &rect);
 213
 214     return QSize( rect.right, rect.bottom );
 215 #endif
 216
 217     QSize current_size = size();
 218
 219 #   if HAS_QT56
 220     /* Android-like scaling */
 221     current_size *= devicePixelRatioF();
 222 #   else
 223     /* OSX-like scaling */
 224     current_size *= devicePixelRatio();
 225 #   endif
 226
 227     return current_size;
 228 }
 229
 230 void VideoWidget::reportSize()
 231 {
 232     if( !p_window )
 233         return;
 234
 235     QSize size = physicalSize();
 236     vout_window_ReportSize( p_window, size.width(), size.height() );
 237 }
 238
 239 /* Set the Widget to the correct Size */
 240 /* Function has to be called by the parent
 241    Parent has to care about resizing itself */
 242 void VideoWidget::setSize( unsigned int w, unsigned int h )
 243 {
 244     /* If the size changed, resizeEvent will be called, otherwise not,
 245      * in which case we need to tell the vout what the size actually is
 246      */
 247     if( (unsigned)size().width() == w && (unsigned)size().height() == h )
 248     {
 249         reportSize();
 250         return;
 251     }
 252
 253     resize( w, h );
 254     emit sizeChanged( w, h );
 255     /* Work-around a bug?misconception? that would happen when vout core resize
 256        twice to the same size and would make the vout not centered.
 257        This cause a small flicker.
 258        See #3621
 259      */
 260     if( (unsigned)size().width() == w && (unsigned)size().height() == h )
 261         updateGeometry();
 262     sync();
 263 }
 264
 265 bool VideoWidget::nativeEvent( const QByteArray& eventType, void* message, long* )
 266 {
 267 #if defined(QT5_HAS_X11)
 268 # if defined(QT5_HAS_XCB)
 269     if ( eventType == "xcb_generic_event_t" )
 270     {
 271         const xcb_generic_event_t* xev = static_cast<const xcb_generic_event_t*>( message );
 272
 273         if ( xev->response_type == XCB_CONFIGURE_NOTIFY )
 274             reportSize();
 275     }
 276 # endif
 277 #endif
 278 #ifdef _WIN32
 279     if ( eventType == "windows_generic_MSG" )
 280     {
 281         MSG* msg = static_cast<MSG*>( message );
 282         if ( msg->message == WM_SIZE )
 283             reportSize();
 284     }
 285 #endif
 286     // Let Qt handle that event in any case
 287     return false;
 288 }
 289
 290 void VideoWidget::resizeEvent( QResizeEvent *event )
 291 {
 292     QWidget::resizeEvent( event );
 293
 294     if ( p_intf->p_sys->voutWindowType == VOUT_WINDOW_TYPE_XID ||
 295         p_intf->p_sys->voutWindowType == VOUT_WINDOW_TYPE_HWND )
 296         return;
 297     reportSize();
 298 }
 299
 300 int VideoWidget::qtMouseButton2VLC( Qt::MouseButton qtButton )
 301 {
 302     if( p_window == NULL )
 303         return -1;
 304     switch( qtButton )
 305     {
 306         case Qt::LeftButton:
 307             return 0;
 308         case Qt::RightButton:
 309             return 2;
 310         case Qt::MiddleButton:
 311             return 1;
 312         default:
 313             return -1;
 314     }
 315 }
 316
 317 void VideoWidget::mouseReleaseEvent( QMouseEvent *event )
 318 {
 319     int vlc_button = qtMouseButton2VLC( event->button() );
 320     if( vlc_button >= 0 )
 321     {
 322         vout_window_ReportMouseReleased( p_window, vlc_button );
 323         event->accept();
 324     }
 325     else
 326         event->ignore();
 327 }
 328
 329 void VideoWidget::mousePressEvent( QMouseEvent* event )
 330 {
 331     int vlc_button = qtMouseButton2VLC( event->button() );
 332     if( vlc_button >= 0 )
 333     {
 334         vout_window_ReportMousePressed( p_window, vlc_button );
 335         event->accept();
 336     }
 337     else
 338         event->ignore();
 339 }
 340
 341 void VideoWidget::mouseMoveEvent( QMouseEvent *event )
 342 {
 343     if( p_window != NULL )
 344     {
 345         vout_window_ReportMouseMoved( p_window, event->x(), event->y() );
 346         event->accept();
 347     }
 348     else
 349         event->ignore();
 350 }
 351
 352 void VideoWidget::mouseDoubleClickEvent( QMouseEvent *event )
 353 {
 354     int vlc_button = qtMouseButton2VLC( event->button() );
 355     if( vlc_button >= 0 )
 356     {
 357         vout_window_ReportMouseDoubleClick( p_window, vlc_button );
 358         event->accept();
 359     }
 360     else
 361         event->ignore();
 362 }
 363
 364
 365 void VideoWidget::release( void )
 366 {
 367     msg_Dbg( p_intf, "Video is not needed anymore" );
 368
 369     if( stable )
 370     {
 371         layout->removeWidget( stable );
 372         stable->deleteLater();
 373         stable = NULL;
 374         p_window = NULL;
 375     }
 376
 377     updateGeometry();
 378 }
 379
 380 /**********************************************************************
 381  * Background Widget. Show a simple image background. Currently,
 382  * it's album art if present or cone.
 383  **********************************************************************/
 384
 385 BackgroundWidget::BackgroundWidget( intf_thread_t *_p_i )
 386     :QWidget( NULL ), p_intf( _p_i ), b_expandPixmap( false ), b_withart( true )
 387 {
 388     /* A dark background */
 389     setAutoFillBackground( true );
 390     QPalette plt = palette();
 391     plt.setColor( QPalette::Active, QPalette::Window , Qt::black );
 392     plt.setColor( QPalette::Inactive, QPalette::Window , Qt::black );
 393     setPalette( plt );
 394
 395     /* Init the cone art */
 396     defaultArt = QString( ":/logo/vlc128.png" );
 397     updateArt( "" );
 398
 399     /* fade in animator */
 400     setProperty( "opacity", 1.0 );
 401     fadeAnimation = new QPropertyAnimation( this, "opacity", this );
 402     fadeAnimation->setDuration( 1000 );
 403     fadeAnimation->setStartValue( 0.0 );
 404     fadeAnimation->setEndValue( 1.0 );
 405     fadeAnimation->setEasingCurve( QEasingCurve::OutSine );
 406     CONNECT( fadeAnimation, valueChanged( const QVariant & ),
 407              this, update() );
 408
 409     CONNECT( THEMIM->getIM(), artChanged( QString ),
 410              this, updateArt( const QString& ) );
 411 }
 412
 413 void BackgroundWidget::updateArt( const QString& url )
 414 {
 415     if ( !url.isEmpty() )
 416         pixmapUrl = url;
 417     else
 418         pixmapUrl = defaultArt;
 419     update();
 420 }
 421
 422 void BackgroundWidget::showEvent( QShowEvent * e )
 423 {
 424     Q_UNUSED( e );
 425     if ( b_withart ) fadeAnimation->start();
 426 }
 427
 428 void BackgroundWidget::paintEvent( QPaintEvent *e )
 429 {
 430     if ( !b_withart )
 431     {
 432         /* we just want background autofill */
 433         QWidget::paintEvent( e );
 434         return;
 435     }
 436
 437     int i_maxwidth, i_maxheight;
 438     QPixmap pixmap = QPixmap( pixmapUrl );
 439     QPainter painter(this);
 440
 441 #if HAS_QT56
 442     qreal dpr = devicePixelRatioF();
 443 #else
 444     qreal dpr = devicePixelRatio();
 445 #endif
 446     pixmap.setDevicePixelRatio( dpr );
 447
 448     i_maxwidth  = __MIN( maximumWidth(), width() ) - MARGIN * 2;
 449     i_maxheight = __MIN( maximumHeight(), height() ) - MARGIN * 2;
 450
 451     painter.setOpacity( property( "opacity" ).toFloat() );
 452
 453     if ( height() > MARGIN * 2 )
 454     {
 455         /* Scale down the pixmap if the widget is too small */
 456         if( pixmap.width() > i_maxwidth || pixmap.height() > i_maxheight )
 457         {
 458             pixmap = pixmap.scaled( i_maxwidth * dpr, i_maxheight * dpr ,
 459                             Qt::KeepAspectRatio, Qt::SmoothTransformation );
 460         }
 461         else
 462         if ( b_expandPixmap &&
 463              pixmap.width() < width() && pixmap.height() < height() )
 464         {
 465             pixmap = pixmap.scaled(
 466                     (width() - MARGIN * 2) * dpr,
 467                     (height() - MARGIN * 2) * dpr ,
 468                     Qt::KeepAspectRatio, Qt::SmoothTransformation);
 469         }
 470         else if (dpr != 1.0)
 471         {
 472             pixmap = pixmap.scaled( pixmap.width() * dpr, pixmap.height() * dpr,
 473                                     Qt::KeepAspectRatio, Qt::SmoothTransformation );
 474         }
 475
 476         painter.drawPixmap(
 477                 MARGIN + ( i_maxwidth - ( pixmap.width() / dpr ) ) / 2,
 478                 MARGIN + ( i_maxheight - ( pixmap.height() / dpr ) ) / 2,
 479                 pixmap);
 480     }
 481     QWidget::paintEvent( e );
 482 }
 483
 484 void BackgroundWidget::contextMenuEvent( QContextMenuEvent *event )
 485 {
 486     THEDP->setPopupMenu();
 487     event->accept();
 488 }
 489
 490 EasterEggBackgroundWidget::EasterEggBackgroundWidget( intf_thread_t *p_intf )
 491     : BackgroundWidget( p_intf )
 492 {
 493     flakes = new QLinkedList<flake *>();
 494     i_rate = 2;
 495     i_speed = 1;
 496     b_enabled = false;
 497     timer = new QTimer( this );
 498     timer->setInterval( 100 );
 499     CONNECT( timer, timeout(), this, spawnFlakes() );
 500     if ( isVisible() && b_enabled ) timer->start();
 501     defaultArt = QString( ":/logo/vlc128-xmas.png" );
 502     updateArt( "" );
 503 }
 504
 505 EasterEggBackgroundWidget::~EasterEggBackgroundWidget()
 506 {
 507     timer->stop();
 508     delete timer;
 509     reset();
 510     delete flakes;
 511 }
 512
 513 void EasterEggBackgroundWidget::showEvent( QShowEvent *e )
 514 {
 515     if ( b_enabled ) timer->start();
 516     BackgroundWidget::showEvent( e );
 517 }
 518
 519 void EasterEggBackgroundWidget::hideEvent( QHideEvent *e )
 520 {
 521     timer->stop();
 522     reset();
 523     BackgroundWidget::hideEvent( e );
 524 }
 525
 526 void EasterEggBackgroundWidget::resizeEvent( QResizeEvent *e )
 527 {
 528     reset();
 529     BackgroundWidget::resizeEvent( e );
 530 }
 531
 532 void EasterEggBackgroundWidget::animate()
 533 {
 534     b_enabled = true;
 535     if ( isVisible() ) timer->start();
 536 }
 537
 538 void EasterEggBackgroundWidget::spawnFlakes()
 539 {
 540     if ( ! isVisible() ) return;
 541
 542     double w = (double) width() / RAND_MAX;
 543
 544     int i_spawn = ( (double) qrand() / RAND_MAX ) * i_rate;
 545
 546     QLinkedList<flake *>::iterator it = flakes->begin();
 547     while( it != flakes->end() )
 548     {
 549         flake *current = *it;
 550         current->point.setY( current->point.y() + i_speed );
 551         if ( current->point.y() + i_speed >= height() )
 552         {
 553             delete current;
 554             it = flakes->erase( it );
 555         }
 556         else
 557             ++it;
 558     }
 559
 560     if ( flakes->size() < MAX_FLAKES )
 561     for ( int i=0; i<i_spawn; i++ )
 562     {
 563         flake *f = new flake;
 564         f->point.setX( qrand() * w );
 565         f->b_fat = ( qrand() < ( RAND_MAX * .33 ) );
 566         flakes->append( f );
 567     }
 568     update();
 569 }
 570
 571 void EasterEggBackgroundWidget::reset()
 572 {
 573     while ( !flakes->isEmpty() )
 574         delete flakes->takeFirst();
 575 }
 576
 577 void EasterEggBackgroundWidget::paintEvent( QPaintEvent *e )
 578 {
 579     QPainter painter(this);
 580
 581     painter.setBrush( QBrush( QColor(Qt::white) ) );
 582     painter.setPen( QPen(Qt::white) );
 583
 584     QLinkedList<flake *>::const_iterator it = flakes->constBegin();
 585     while( it != flakes->constEnd() )
 586     {
 587         const flake * const f = *(it++);
 588         if ( f->b_fat )
 589         {
 590             /* Xsnow like :p */
 591             painter.drawPoint( f->point.x(), f->point.y() -1 );
 592             painter.drawPoint( f->point.x() + 1, f->point.y() );
 593             painter.drawPoint( f->point.x(), f->point.y() +1 );
 594             painter.drawPoint( f->point.x() - 1, f->point.y() );
 595         }
 596         else
 597         {
 598             painter.drawPoint( f->point );
 599         }
 600     }
 601
 602     BackgroundWidget::paintEvent( e );
 603 }
 604
 605 SpeedLabel::SpeedLabel( intf_thread_t *_p_intf, QWidget *parent )
 606            : QLabel( parent ), p_intf( _p_intf )
 607 {
 608     tooltipStringPattern = qtr( "Current playback speed: %1\nClick to adjust" );
 609
 610     /* Create the Speed Control Widget */
 611     speedControl = new SpeedControlWidget( p_intf, this );
 612     speedControlMenu = new QMenu( this );
 613
 614     widgetAction = new QWidgetAction( speedControl );
 615     widgetAction->setDefaultWidget( speedControl );
 616     speedControlMenu->addAction( widgetAction );
 617
 618     /* Change the SpeedRate in the Label */
 619     CONNECT( THEMIM->getIM(), rateChanged( float ), this, setRate( float ) );
 620
 621     DCONNECT( THEMIM, inputChanged( bool ),
 622               speedControl, activateOnState() );
 623
 624     setContentsMargins(4, 0, 4, 0);
 625     setRate( var_InheritFloat( THEPL, "rate" ) );
 626 }
 627
 628 SpeedLabel::~SpeedLabel()
 629 {
 630     widgetAction->setParent( this );
 631     delete speedControlMenu;
 632 }
 633
 634 /****************************************************************************
 635  * Small right-click menu for rate control
 636  ****************************************************************************/
 637
 638 void SpeedLabel::showSpeedMenu( QPoint pos )
 639 {
 640     speedControlMenu->exec( QCursor::pos() - pos
 641                             + QPoint( -70 + width()/2, height() ) );
 642 }
 643
 644 void SpeedLabel::setRate( float rate )
 645 {
 646     QString str;
 647     str.setNum( rate, 'f', 2 );
 648     str.append( "x" );
 649     setText( str );
 650     setToolTip( tooltipStringPattern.arg( str ) );
 651     speedControl->updateControls( rate );
 652 }
 653
 654 /**********************************************************************
 655  * Speed control widget
 656  **********************************************************************/
 657 SpeedControlWidget::SpeedControlWidget( intf_thread_t *_p_i, QWidget *_parent )
 658                     : QFrame( _parent ), p_intf( _p_i )
 659 {
 660     QSizePolicy sizePolicy( QSizePolicy::Fixed, QSizePolicy::Maximum );
 661     sizePolicy.setHorizontalStretch( 0 );
 662     sizePolicy.setVerticalStretch( 0 );
 663
 664     speedSlider = new QSlider( this );
 665     speedSlider->setSizePolicy( sizePolicy );
 666     speedSlider->setMinimumSize( QSize( 140, 20 ) );
 667     speedSlider->setOrientation( Qt::Horizontal );
 668     speedSlider->setTickPosition( QSlider::TicksBelow );
 669
 670     speedSlider->setRange( -34, 34 );
 671     speedSlider->setSingleStep( 1 );
 672     speedSlider->setPageStep( 1 );
 673     speedSlider->setTickInterval( 17 );
 674
 675     CONNECT( speedSlider, valueChanged( int ), this, updateRate( int ) );
 676
 677     QToolButton *normalSpeedButton = new QToolButton( this );
 678     normalSpeedButton->setMaximumSize( QSize( 26, 16 ) );
 679     normalSpeedButton->setAutoRaise( true );
 680     normalSpeedButton->setText( "1x" );
 681     normalSpeedButton->setToolTip( qtr( "Revert to normal play speed" ) );
 682
 683     CONNECT( normalSpeedButton, clicked(), this, resetRate() );
 684
 685     QToolButton *slowerButton = new QToolButton( this );
 686     slowerButton->setMaximumSize( QSize( 26, 16 ) );
 687     slowerButton->setAutoRaise( true );
 688     slowerButton->setToolTip( tooltipL[SLOWER_BUTTON] );
 689     slowerButton->setIcon( QIcon( iconL[SLOWER_BUTTON] ) );
 690     CONNECT( slowerButton, clicked(), THEMIM->getIM(), slower() );
 691
 692     QToolButton *fasterButton = new QToolButton( this );
 693     fasterButton->setMaximumSize( QSize( 26, 16 ) );
 694     fasterButton->setAutoRaise( true );
 695     fasterButton->setToolTip( tooltipL[FASTER_BUTTON] );
 696     fasterButton->setIcon( QIcon( iconL[FASTER_BUTTON] ) );
 697     CONNECT( fasterButton, clicked(), THEMIM->getIM(), faster() );
 698
 699 /*    spinBox = new QDoubleSpinBox();
 700     spinBox->setDecimals( 2 );
 701     spinBox->setMaximum( 32 );
 702     spinBox->setMinimum( 0.03F );
 703     spinBox->setSingleStep( 0.10F );
 704     spinBox->setAlignment( Qt::AlignRight );
 705
 706     CONNECT( spinBox, valueChanged( double ), this, updateSpinBoxRate( double ) ); */
 707
 708     QGridLayout* speedControlLayout = new QGridLayout( this );
 709     speedControlLayout->addWidget( speedSlider, 0, 0, 1, 3 );
 710     speedControlLayout->addWidget( slowerButton, 1, 0 );
 711     speedControlLayout->addWidget( normalSpeedButton, 1, 1, 1, 1, Qt::AlignRight );
 712     speedControlLayout->addWidget( fasterButton, 1, 2, 1, 1, Qt::AlignRight );
 713     //speedControlLayout->addWidget( spinBox );
 714     speedControlLayout->setContentsMargins( 0, 0, 0, 0 );
 715     speedControlLayout->setSpacing( 0 );
 716
 717     lastValue = 0;
 718
 719     activateOnState();
 720 }
 721
 722 void SpeedControlWidget::activateOnState()
 723 {
 724     speedSlider->setEnabled( THEMIM->getIM()->hasInput() );
 725     //spinBox->setEnabled( THEMIM->getIM()->hasInput() );
 726 }
 727
 728 void SpeedControlWidget::updateControls( float rate )
 729 {
 730     if( speedSlider->isSliderDown() )
 731     {
 732         //We don't want to change anything if the user is using the slider
 733         return;
 734     }
 735
 736     double value = 17 * log( rate ) / log( 2. );
 737     int sliderValue = (int) ( ( value > 0 ) ? value + .5 : value - .5 );
 738
 739     if( sliderValue < speedSlider->minimum() )
 740     {
 741         sliderValue = speedSlider->minimum();
 742     }
 743     else if( sliderValue > speedSlider->maximum() )
 744     {
 745         sliderValue = speedSlider->maximum();
 746     }
 747     lastValue = sliderValue;
 748
 749     speedSlider->setValue( sliderValue );
 750     //spinBox->setValue( rate );
 751 }
 752
 753 void SpeedControlWidget::updateRate( int sliderValue )
 754 {
 755     if( sliderValue == lastValue )
 756         return;
 757
 758     double speed = pow( 2, (double)sliderValue / 17 );
 759     int rate = INPUT_RATE_DEFAULT / speed;
 760
 761     THEMIM->getIM()->setRate(rate);
 762     //spinBox->setValue( var_InheritFloat( THEPL, "rate" ) );
 763 }
 764
 765 void SpeedControlWidget::updateSpinBoxRate( double r )
 766 {
 767     var_SetFloat( THEPL, "rate", r );
 768 }
 769
 770 void SpeedControlWidget::resetRate()
 771 {
 772     THEMIM->getIM()->setRate( INPUT_RATE_DEFAULT );
 773 }
 774
 775 CoverArtLabel::CoverArtLabel( QWidget *parent, intf_thread_t *_p_i )
 776     : QLabel( parent ), p_intf( _p_i ), p_item( NULL )
 777 {
 778     setContextMenuPolicy( Qt::ActionsContextMenu );
 779     CONNECT( THEMIM->getIM(), artChanged( input_item_t * ),
 780              this, showArtUpdate( input_item_t * ) );
 781
 782     setMinimumHeight( 128 );
 783     setMinimumWidth( 128 );
 784     setScaledContents( false );
 785     setAlignment( Qt::AlignCenter );
 786
 787     QAction *action = new QAction( qtr( "Download cover art" ), this );
 788     CONNECT( action, triggered(), this, askForUpdate() );
 789     addAction( action );
 790
 791     action = new QAction( qtr( "Add cover art from file" ), this );
 792     CONNECT( action, triggered(), this, setArtFromFile() );
 793     addAction( action );
 794
 795     p_item = THEMIM->currentInputItem();
 796     if( p_item )
 797     {
 798         input_item_Hold( p_item );
 799         showArtUpdate( p_item );
 800     }
 801     else
 802         showArtUpdate( "" );
 803 }
 804
 805 CoverArtLabel::~CoverArtLabel()
 806 {
 807     QList< QAction* > artActions = actions();
 808     foreach( QAction *act, artActions )
 809         removeAction( act );
 810     if ( p_item ) input_item_Release( p_item );
 811 }
 812
 813 void CoverArtLabel::setItem( input_item_t *_p_item )
 814 {
 815     if ( p_item ) input_item_Release( p_item );
 816     p_item = _p_item;
 817     if ( p_item ) input_item_Hold( p_item );
 818 }
 819
 820 void CoverArtLabel::showArtUpdate( const QString& url )
 821 {
 822     QPixmap pix;
 823     if( !url.isEmpty() && pix.load( url ) )
 824     {
 825         pix = pix.scaled( minimumWidth(), minimumHeight(),
 826                           Qt::KeepAspectRatioByExpanding,
 827                           Qt::SmoothTransformation );
 828     }
 829     else
 830     {
 831         pix = QPixmap( ":/noart.png" );
 832     }
 833     setPixmap( pix );
 834 }
 835
 836 void CoverArtLabel::showArtUpdate( input_item_t *_p_item )
 837 {
 838     /* not for me */
 839     if ( _p_item != p_item )
 840         return;
 841
 842     QString url;
 843     if ( _p_item ) url = THEMIM->getIM()->decodeArtURL( _p_item );
 844     showArtUpdate( url );
 845 }
 846
 847 void CoverArtLabel::askForUpdate()
 848 {
 849     THEMIM->getIM()->requestArtUpdate( p_item, true );
 850 }
 851
 852 void CoverArtLabel::setArtFromFile()
 853 {
 854     if( !p_item )
 855         return;
 856
 857     QString filePath = QFileDialog::getOpenFileName( this, qtr( "Choose Cover Art" ),
 858         p_intf->p_sys->filepath, qtr( "Image Files (*.gif *.jpg *.jpeg *.png)" ) );
 859
 860     if( filePath.isEmpty() )
 861         return;
 862
 863     QString fileUrl = QUrl::fromLocalFile( filePath ).toString();
 864
 865     THEMIM->getIM()->setArt( p_item, fileUrl );
 866 }
 867
 868 void CoverArtLabel::clear()
 869 {
 870     showArtUpdate( "" );
 871 }
 872
 873 TimeLabel::TimeLabel( intf_thread_t *_p_intf, TimeLabel::Display _displayType  )
 874     : ClickableQLabel(), p_intf( _p_intf ), displayType( _displayType )
 875 {
 876     b_remainingTime = false;
 877     if( _displayType != TimeLabel::Elapsed )
 878         b_remainingTime = getSettings()->value( "MainWindow/ShowRemainingTime", false ).toBool();
 879     switch( _displayType ) {
 880         case TimeLabel::Elapsed:
 881             setText( " --:-- " );
 882             setToolTip( qtr("Elapsed time") );
 883             break;
 884         case TimeLabel::Remaining:
 885             setText( " --:-- " );
 886             setToolTip( qtr("Total/Remaining time")
 887                         + QString("\n-")
 888                         + qtr("Click to toggle between total and remaining time")
 889                       );
 890             break;
 891         case TimeLabel::Both:
 892             setText( " --:--/--:-- " );
 893             setToolTip( QString( "- " )
 894                 + qtr( "Click to toggle between elapsed and remaining time" )
 895                 + QString( "\n- " )
 896                 + qtr( "Double click to jump to a chosen time position" ) );
 897             break;
 898     }
 899     setAlignment( Qt::AlignRight | Qt::AlignVCenter );
 900
 901     CONNECT( THEMIM->getIM(), positionUpdated( float, int64_t, int ),
 902               this, setDisplayPosition( float, int64_t, int ) );
 903
 904     connect( this, SIGNAL( broadcastRemainingTime( bool ) ),
 905          THEMIM->getIM(), SIGNAL( remainingTimeChanged( bool ) ) );
 906
 907     CONNECT( THEMIM->getIM(), remainingTimeChanged( bool ),
 908               this, setRemainingTime( bool ) );
 909
 910     setStyleSheet( "QLabel { padding-left: 4px; padding-right: 4px; }" );
 911 }
 912
 913 void TimeLabel::setRemainingTime( bool remainingTime )
 914 {
 915     b_remainingTime = remainingTime;
 916 }
 917
 918 void TimeLabel::setDisplayPosition( float pos, int64_t t, int length )
 919 {
 920     if( pos == -1.f )
 921     {
 922         setMinimumSize( QSize( 0, 0 ) );
 923         if( displayType == TimeLabel::Both )
 924             setText( "--:--/--:--" );
 925         else
 926             setText( "--:--" );
 927         return;
 928     }
 929
 930     int time = t / 1000000;
 931
 932     secstotimestr( psz_length, length );
 933     secstotimestr( psz_time, ( b_remainingTime && length ) ? length - time
 934                                                            : time );
 935
 936     // compute the minimum size that will be required for the psz_length
 937     // and use it to enforce a minimal size to avoid "dancing" widgets
 938     QSize minsize( 0, 0 );
 939     if ( length > 0 )
 940     {
 941         QMargins margins = contentsMargins();
 942         minsize += QSize(
 943                   fontMetrics().size( 0, QString( psz_length ), 0, 0 ).width(),
 944                   sizeHint().height()
 945                 );
 946         minsize += QSize( margins.left() + margins.right() + 8, 0 ); /* +padding */
 947
 948         if ( b_remainingTime )
 949             minsize += QSize( fontMetrics().size( 0, "-", 0, 0 ).width(), 0 );
 950     }
 951
 952     switch( displayType )
 953     {
 954         case TimeLabel::Elapsed:
 955             setMinimumSize( minsize );
 956             setText( QString( psz_time ) );
 957             break;
 958         case TimeLabel::Remaining:
 959             if( b_remainingTime )
 960             {
 961                 setMinimumSize( minsize );
 962                 setText( QString("-") + QString( psz_time ) );
 963             }
 964             else
 965             {
 966                 setMinimumSize( QSize( 0, 0 ) );
 967                 setText( QString( psz_length ) );
 968             }
 969             break;
 970         case TimeLabel::Both:
 971         default:
 972             QString timestr = QString( "%1%2/%3" )
 973             .arg( QString( (b_remainingTime && length) ? "-" : "" ) )
 974             .arg( QString( psz_time ) )
 975             .arg( QString( ( !length && time ) ? "--:--" : psz_length ) );
 976
 977             setText( timestr );
 978             break;
 979     }
 980     cachedLength = length;
 981 }
 982
 983 void TimeLabel::setDisplayPosition( float pos )
 984 {
 985     if( pos == -1.f || cachedLength == 0 )
 986     {
 987         setText( " --:--/--:-- " );
 988         return;
 989     }
 990
 991     int time = pos * cachedLength;
 992     secstotimestr( psz_time,
 993                    ( b_remainingTime && cachedLength ?
 994                    cachedLength - time : time ) );
 995     QString timestr = QString( "%1%2/%3" )
 996         .arg( QString( (b_remainingTime && cachedLength) ? "-" : "" ) )
 997         .arg( QString( psz_time ) )
 998         .arg( QString( ( !cachedLength && time ) ? "--:--" : psz_length ) );
 999
1000     setText( timestr );
1001 }
1002
1003
1004 void TimeLabel::toggleTimeDisplay()
1005 {
1006     b_remainingTime = !b_remainingTime;
1007     getSettings()->setValue( "MainWindow/ShowRemainingTime", b_remainingTime );
1008     emit broadcastRemainingTime( b_remainingTime );
1009 }
1010