1 /*

     2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: Track List Widget for Music Player Media Wall.

    15 *

    16 */

    17 

    18 

    19 #include <QGraphicsLinearLayout>

    20 #include <QGraphicsSceneMouseEvent>

    21 #include <QBrush>

    22 

    23 #include <hbframeitem.h>

    24 #include <hbinstance.h>

    25 #include <hbmainwindow.h>

    26 

    27 

    28 #include "mptracklistwidget.h"

    29 

    30 const int swipeAngleTolerance = 30; // angle is from 0 to 360

    31 

    32 

    33 MpTrackListWidget::MpTrackListWidget( QGraphicsItem *parent ) : HbWidget( parent ) 

    34 {

    35     mList = new HbListView( );

    36     QGraphicsLinearLayout   *layout = new QGraphicsLinearLayout( );

    37     layout->addItem( mList );

    38     setLayout( layout );

    39     

    40     grabGesture(Qt::SwipeGesture);

    41     mFrameItem = new HbFrameItem( this );

    42     mFrameItem->frameDrawer().setFrameType( HbFrameDrawer::NinePieces );

    43     

    44     //TODO: REMOVE PAINT and enable frame drawer when graphic is delibered.

    45     //mFrameItem->frameDrawer().setFrameGraphicsName( "qtg_fr_popup" );  

    46     mFrameItem->setZValue(-1);

    47 }

    48 

    49 /*!

    50     \reimp

    51  */

    52 void MpTrackListWidget::resizeEvent(QGraphicsSceneResizeEvent *event)

    53 {

    54     mFrameItem->setGeometry( rect() );

    55     HbWidget::resizeEvent( event );

    56 }

    57 

    58 

    59 /*!

    60     \reimp

    61  */

    62 void MpTrackListWidget::paint( QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget )

    63 {

    64     Q_UNUSED( widget )

    65     Q_UNUSED( option )

    66     painter->setPen(Qt::darkGray);

    67     painter->setBrush(QBrush(Qt::gray ));

    68     painter->drawRoundedRect( rect(), 4.0 , 4.0 );

    69 }

    70 

    71 /*!

    72     \reimp

    73  */

    74 void MpTrackListWidget::gestureEvent(QGestureEvent *event)

    75 {

    76     QGesture* gesture = event->gesture(Qt::SwipeGesture);

    77     if (gesture) {

    78         QSwipeGesture* swipe = static_cast<QSwipeGesture *>(gesture);

    79         if (swipe->state() == Qt::GestureFinished && 

    80                 swipeAngleToDirection (swipe->swipeAngle()) == QSwipeGesture::Left ) {

    81             //Left gesture is the direction in wich the track list slides to close.

    82             emit close();

    83             event->accept(Qt::SwipeGesture);

    84         }

    85     }    

    86 }

    87 

    88 /*!

    89     Returns the HbListView instance.

    90  */

    91 HbListView *MpTrackListWidget::list()

    92 {

    93     return mList;

    94 } 

    95 

    96 /*!

    97     Maps swipe angle to SwipeDirection based on a tolerance parameter and orientation.

    98  */

    99 QSwipeGesture::SwipeDirection MpTrackListWidget::swipeAngleToDirection(

   100         int angle)

   101 {

   102     int delta = swipeAngleTolerance;

   103     if ( hbInstance->allMainWindows()[0]->orientation() == Qt::Horizontal ) {

   104         //correction for transformation on rotation.

   105         angle += ( angle < 90 ) ? 270 : -90;  

   106     }

   107     QSwipeGesture::SwipeDirection direction(QSwipeGesture::NoDirection);

   108     if ((angle > 90-delta) && (angle < 90+delta)) {

   109         direction = QSwipeGesture::Up;

   110     } else if ((angle > 270-delta) && (angle < 270+delta)) {

   111         direction = QSwipeGesture::Down;

   112     } else if (((angle >= 0) && (angle < delta)) 

   113             || ((angle > 360-delta) && (angle <= 360))) {

   114         direction = QSwipeGesture::Right;

   115     } else if ((angle > 180-delta) && (angle < 180+delta)) {

   116         direction = QSwipeGesture::Left;

   117     }

   118     return direction;    

   119 }

   120 

   121 /*!

   122     \reimp

   123  */

   124 void MpTrackListWidget::mousePressEvent( QGraphicsSceneMouseEvent *event )

   125 {

   126     if ( event->button() == Qt::LeftButton ) {

   127         event->accept();

   128     }

   129     else {

   130         event->ignore();

   131     }

   132 }

   133 

   134 /*!

   135     \reimp

   136  */

   137 void MpTrackListWidget::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)

   138 {

   139     if ( event->button() == Qt::LeftButton ) {

   140         event->accept();

   141     }

   142     else {

   143         event->ignore();

   144     }

   145 }

   146 

   147