--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mpviewplugins/mpmediawallviewplugin/src/mptracklistwidget.cpp	Thu Jul 22 16:32:33 2010 +0100
@@ -0,0 +1,182 @@
+/*
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: Track List Widget for Music Player Media Wall.
+*
+*/
+
+
+#include <QGraphicsSceneMouseEvent>
+
+#include <hbinstance.h>
+#include <hblistview.h>
+#include <hbframeitem.h>
+#include <hbmainwindow.h>
+#include <hbstyleloader.h>
+
+
+#include "mptracklistwidget.h"
+#include "mpreflectioneffect.h"
+
+const int swipeAngleTolerance = 30; // angle is from 0 to 360
+
+/*!
+    \class MpTrackListWidget
+    \brief Widget with a list of tracks for Media Wall.
+    
+    This widget provides a list with custom style and a background.
+
+*/
+
+/*!
+    \fn void closed()
+
+    This signal is emitted when the track list is closed by the user with a 
+    left swipe gesture.
+ */
+
+
+/*!
+   Creates the MpTrackListWidget. 
+ */
+MpTrackListWidget::MpTrackListWidget( QGraphicsItem *parent ) : HbWidget( parent ) 
+{
+    // Register the custorm css path for the list items.
+    HbStyleLoader::registerFilePath(":/css/mpcustomlistitem.css");
+    HbStyleLoader::registerFilePath(":/css/mpcustomlistitem.hblistviewitem.widgetml");    
+    mList = new HbListView( this );
+    // set layout name that matches the custom list item layout.
+    mList->setLayoutName("mpmwtracklist");
+    
+    //grab the gesture for close.
+    grabGesture(Qt::SwipeGesture);
+    
+    mFrameItem = new HbFrameItem( this );
+    mFrameItem->frameDrawer().setFrameType( HbFrameDrawer::NinePieces );
+    mFrameItem->frameDrawer().setFrameGraphicsName( "qtg_fr_multimedia_trans" );  
+    mFrameItem->setZValue(-1);
+    
+    MpReflectionEffect *effect = new MpReflectionEffect(this);
+    setGraphicsEffect(effect);
+}
+
+/*!
+ Destructs the track list widget.
+ */
+MpTrackListWidget::~MpTrackListWidget()
+{
+}
+
+/*!
+    Returns the HbListView instance.
+ */
+HbListView *MpTrackListWidget::list()
+{
+    return mList;
+} 
+
+/*!
+    \reimp
+ */
+void MpTrackListWidget::resizeEvent(QGraphicsSceneResizeEvent *event)
+{
+    mFrameItem->setGeometry( rect() );
+    qreal margin = 0.0;
+    style()->parameter(QString("var(hb-param-margin-gene-middle-vertical)"), margin);
+    mList->setGeometry( rect().adjusted( margin, margin, -margin, -margin ) );
+    HbWidget::resizeEvent( event );
+}
+
+/*!
+    \reimp
+ */
+void MpTrackListWidget::mousePressEvent( QGraphicsSceneMouseEvent *event )
+{
+    if ( event->button() == Qt::LeftButton ) {
+        event->accept();
+    }
+    else {
+        event->ignore();
+    }
+}
+
+/*!
+    \reimp
+ */
+void MpTrackListWidget::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
+{
+    if ( event->button() == Qt::LeftButton ) {
+        event->accept();
+    }
+    else {
+        event->ignore();
+    }
+}
+
+/*!
+    \reimp
+ */
+void MpTrackListWidget::gestureEvent(QGestureEvent *event)
+{
+    QGesture* gesture = event->gesture(Qt::SwipeGesture);
+    if (gesture) {
+        QSwipeGesture* swipe = static_cast<QSwipeGesture *>(gesture);
+        if (swipe->state() == Qt::GestureFinished && 
+                swipeAngleToDirection (swipe->swipeAngle()) == QSwipeGesture::Left ) {
+            //Left gesture is the direction in wich the track list slides to close.
+            emit closed();
+            event->accept(Qt::SwipeGesture);
+        }
+    }    
+}
+
+/*!
+    Maps swipe \a angle to QSwipeGesture::SwipeDirection based on a tolerance 
+    parameter and orientation. This funtions helps to identify a swipe even 
+    if it is not sharp movement from 180 to 0 degrees on the righ swipe 
+    gesture for instance. Since gesture events are mesured on device 
+    cordinates this also helps to correct the gesture to local cordinates 
+    bases on device orientation, wich is done using QT transformations, 
+    meaning local cordinates and device cordinates are not always aligned.
+ */
+QSwipeGesture::SwipeDirection MpTrackListWidget::swipeAngleToDirection(
+        int angle )
+{
+    int delta = swipeAngleTolerance;
+    if ( hbInstance->allMainWindows()[0]->orientation() == Qt::Horizontal ) {
+    //correction for transformation on rotation.
+#ifdef __WINS__ //wincw with forced rotation is to the right.
+    angle += ( angle < 90 ) ? 270 : -90; 
+#else//currently hardware rotations is to the left.
+    angle += 90;
+    if ( angle > 360 ) {
+        angle -= 360;
+    }
+#endif    
+      
+    }
+    QSwipeGesture::SwipeDirection direction( QSwipeGesture::NoDirection );
+    if ( ( angle > 90 - delta) && ( angle < 90 + delta ) ) {
+        direction = QSwipeGesture::Up;
+    } else if ( ( angle > 270 - delta ) && (angle < 270 + delta ) ) {
+        direction = QSwipeGesture::Down;
+    } else if ( ( ( angle >= 0 ) && ( angle < delta ) ) 
+            || ( ( angle > 360 - delta ) && ( angle <= 360 ) ) ) {
+        direction = QSwipeGesture::Right;
+    } else if ( ( angle > 180 - delta ) && ( angle < 180 + delta ) ) {
+        direction = QSwipeGesture::Left;
+    }
+    return direction;    
+}
+
+//EOF