--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/radioapp/radiowidgets/src/radiostationcarousel.cpp Tue Aug 31 15:15:02 2010 +0300
@@ -0,0 +1,950 @@
+/*
+* Copyright (c) 2009 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:
+*
+*/
+
+// System includes
+#include <QGraphicsLinearLayout>
+#include <QGraphicsSceneResizeEvent>
+#include <QTimer>
+#include <HbPanGesture>
+#include <HbSwipeGesture>
+#include <HbFontSpec>
+#include <HbMenu>
+#include <QPainter>
+
+// User includes
+#include "radiostationcarousel.h"
+#include "radiocarouselanimator.h"
+#include "radiouiloader.h"
+#include "radiocarouselitem.h"
+#include "radiostation.h"
+#include "radiouiengine.h"
+#include "radiostationmodel.h"
+#include "radiofadinglabel.h"
+#include "radiologger.h"
+#include "radioutil.h"
+#include "radio_global.h"
+
+// Constants
+const int RTPLUS_CHECK_TIMEOUT = 700;
+const int INFOTEXT_NOFAVORITES_TIMEOUT = 5000;
+const int SET_FREQUENCY_TIMEOUT = 500;
+const int FAVORITE_HINT_SHOW_DELAY = 1000;
+const int FAVORITE_HINT_HIDE_DELAY = 2000;
+
+// Matti testing constants
+const QLatin1String LEFT_ITEM_NAME ( "carousel_left" );
+const QLatin1String CENTER_ITEM_NAME ( "carousel_center" );
+const QLatin1String RIGHT_ITEM_NAME ( "carousel_right" );
+
+#ifdef BUILD_WIN32
+# define SCROLLBAR_POLICY ScrollBarAlwaysOn
+#else
+# define SCROLLBAR_POLICY ScrollBarAlwaysOff
+#endif // BUILD_WIN32
+
+#define CALL_TO_ALL_ITEMS( expr ) \
+ mItems[LeftItem]->expr; \
+ mItems[CenterItem]->expr; \
+ mItems[RightItem]->expr;
+
+/*!
+ *
+ */
+RadioStationCarousel::RadioStationCarousel( QGraphicsItem* parent ) :
+ HbScrollArea( parent ),
+ mUiEngine( NULL ),
+ mAutoScrollTime( 300 ),
+ mGenericTimer( new QTimer( this ) ),
+ mTimerMode( NoTimer ),
+ mInfoText( NULL ),
+ mRadiotextPopup( NULL ),
+ mContainer( new HbWidget( this ) ),
+ mMidScrollPos( 0 ),
+ mMaxScrollPos( 0 ),
+ mCurrentIndex( 0 ),
+ mTargetIndex( -1 ),
+ mIsCustomFreq( false ),
+ mInfoTextType( CarouselInfoText::None ),
+ mModel( NULL ),
+ mPosAdjustmentDisabled( false ),
+ mScrollDirection( Scroll::Shortest ),
+ mManualSeekMode( false )
+#ifdef USE_DEBUGGING_CONTROLS
+ ,mRdsLabel( new RadioFadingLabel( this ) )
+#endif // USE_DEBUGGING_CONTROLS
+{
+}
+
+/*!
+ * Property
+ *
+ */
+void RadioStationCarousel::setFavoriteIcon( const HbIcon& favoriteIcon )
+{
+ mFavoriteIcon = favoriteIcon;
+}
+
+/*!
+ * Property
+ *
+ */
+HbIcon RadioStationCarousel::favoriteIcon() const
+{
+ return mFavoriteIcon;
+}
+
+/*!
+ * Property
+ *
+ */
+void RadioStationCarousel::setNonFavoriteIcon( const HbIcon& nonFavoriteIcon )
+{
+ mNonFavoriteIcon = nonFavoriteIcon;
+}
+
+/*!
+ * Property
+ *
+ */
+HbIcon RadioStationCarousel::nonFavoriteIcon() const
+{
+ return mNonFavoriteIcon;
+}
+
+/*!
+ *
+ */
+void RadioStationCarousel::setAutoScrollTime( const int time )
+{
+ mAutoScrollTime = time;
+}
+
+/*!
+ *
+ */
+int RadioStationCarousel::autoScrollTime() const
+{
+ return mAutoScrollTime;
+}
+
+/*!
+ *
+ */
+void RadioStationCarousel::init( RadioUiLoader& uiLoader, RadioUiEngine* uiEngine )
+{
+ mUiEngine = uiEngine;
+ RadioUtil::setCarousel( this );
+
+ mItems[CenterItem] = new RadioCarouselItem( *this, this, true );
+ mItems[LeftItem] = new RadioCarouselItem( *this, this );
+ mItems[RightItem] = new RadioCarouselItem( *this, this );
+
+ // Matti testing needs the objects to have names
+ mItems[LeftItem]->setObjectName( LEFT_ITEM_NAME );
+ mItems[CenterItem]->setObjectName( CENTER_ITEM_NAME );
+ mItems[RightItem]->setObjectName( RIGHT_ITEM_NAME );
+
+ QGraphicsLinearLayout* layout = new QGraphicsLinearLayout( Qt::Horizontal );
+ layout->setContentsMargins( 0, 0, 0, 0 );
+ layout->setSpacing( 0 );
+ layout->addItem( mItems[LeftItem] );
+ layout->addItem( mItems[CenterItem] );
+ layout->addItem( mItems[RightItem] );
+ mContainer->setLayout( layout );
+ setContentWidget( mContainer );
+
+ setClampingStyle( HbScrollArea::NoClamping );
+ setScrollDirections( Qt::Horizontal );
+
+ setFrictionEnabled( true );
+ setHorizontalScrollBarPolicy( HbScrollArea::SCROLLBAR_POLICY );
+ setVerticalScrollBarPolicy( HbScrollArea::ScrollBarAlwaysOff );
+
+ mInfoText = uiLoader.findWidget<HbLabel>( DOCML::MV_NAME_INFO_TEXT );
+ mInfoText->setTextWrapping( Hb::TextWordWrap );
+
+ mRadiotextPopup = uiLoader.findObject<HbMenu>( DOCML::MV_NAME_CAROUSEL_RT_MENU );
+
+#ifdef BUILD_WIN32
+ HbFontSpec spec = mInfoText->fontSpec();
+ spec.setRole( HbFontSpec::Secondary );
+ mInfoText->setFontSpec( spec );
+#endif
+
+ setScrollDirections( Qt::Horizontal );
+
+ Radio::connect( this, SIGNAL(scrollingEnded()),
+ this, SLOT(adjustAfterScroll()) );
+
+ mModel = &mUiEngine->stationModel();
+ Radio::connect( mModel, SIGNAL(favoriteChanged(RadioStation)),
+ this, SLOT(update(RadioStation)) );
+ Radio::connect( mModel, SIGNAL(stationDataChanged(RadioStation)),
+ this, SLOT(update(RadioStation)));
+ Radio::connect( mModel, SIGNAL(radioTextReceived(RadioStation)),
+ this, SLOT(updateRadioText(RadioStation)));
+ Radio::connect( mModel, SIGNAL(dynamicPsChanged(RadioStation)),
+ this, SLOT(update(RadioStation)));
+
+ mGenericTimer->setSingleShot( true );
+ Radio::connect( mGenericTimer, SIGNAL(timeout()),
+ this, SLOT(timerFired()));
+
+ Radio::connect( mModel, SIGNAL(rowsInserted(QModelIndex,int,int)),
+ this, SLOT(updateStations()) );
+ Radio::connect( mModel, SIGNAL(modelReset()),
+ this, SLOT(updateStations()) );
+ Radio::connect( mModel, SIGNAL(rowsRemoved(QModelIndex,int,int)),
+ this, SLOT(updateStations()) );
+
+ setFrequency( mUiEngine->currentFrequency(), TuneReason::Unspecified );
+
+#ifdef USE_DEBUGGING_CONTROLS
+ mRdsLabel->setPos( QPoint( 300, 10 ) );
+ mRdsLabel->setText( "RDS" );
+ mRdsLabel->setElideMode( Qt::ElideNone );
+ HbFontSpec spec = mRdsLabel->fontSpec();
+ spec.setTextPaneHeight( 10 );
+ spec.setRole( HbFontSpec::Secondary );
+ mRdsLabel->setFontSpec( spec );
+ mRdsLabel->setTextColor( Qt::gray );
+ if ( mUiEngine ) {
+ Radio::connect( mUiEngine, SIGNAL(rdsAvailabilityChanged(bool)),
+ this, SLOT(setRdsAvailable(bool)) );
+ }
+#endif // USE_DEBUGGING_CONTROLS
+}
+
+/*!
+ *
+ */
+void RadioStationCarousel::setFrequency( uint frequency, int reason, Scroll::Direction direction )
+{
+ if ( mModel ) {
+ if ( !mManualSeekMode ) {
+
+ if ( mModel->rowCount() <= 1 ) {
+ mItems[LeftItem]->setStation( RadioStation() );
+ mItems[RightItem]->setStation( RadioStation() );
+ }
+
+ mIsCustomFreq = false;
+ if ( reason == TuneReason::Skip || reason == TuneReason::StationScanFinalize ) {
+ const int newIndex = mModel->indexFromFrequency( frequency );
+ scrollToIndex( newIndex, direction, NoSignal );
+ mCurrentIndex = newIndex;
+ } else {
+ if ( mModel->contains( frequency ) ) {
+ mCurrentIndex = mModel->indexFromFrequency( frequency );
+ } else {
+ const RadioStation prevStation = mModel->findClosest( frequency, StationSkip::Previous );
+ if ( prevStation.isValid() ) {
+ mCurrentIndex = mModel->indexFromFrequency( prevStation.frequency() );
+ } else {
+ mCurrentIndex = -1;
+ }
+
+ mIsCustomFreq = true;
+ }
+
+ mItems[CenterItem]->setFrequency( frequency );
+ mTimerMode = SetFrequency;
+ mGenericTimer->stop();
+ mGenericTimer->start( SET_FREQUENCY_TIMEOUT );
+ }
+ } else {
+ mItems[CenterItem]->setFrequency( frequency );
+ }
+ }
+}
+
+/*!
+ *
+ */
+RadioUiEngine* RadioStationCarousel::uiEngine()
+{
+ return mUiEngine;
+}
+
+/*!
+ *
+ */
+bool RadioStationCarousel::isAntennaAttached() const
+{
+ return mUiEngine->isAntennaAttached();
+}
+
+/*!
+ *
+ */
+void RadioStationCarousel::setScanningMode( bool scanning )
+{
+ CALL_TO_ALL_ITEMS( setSeekLayout( scanning ) );
+
+ if ( scanning ) {
+ setInfoText( CarouselInfoText::Scanning );
+ if ( !mAnimator ) {
+ mAnimator = new RadioCarouselAnimator( *this );
+ }
+ mAnimator.data()->startFlashingText();
+ } else {
+ if ( mAnimator ) {
+ mAnimator.data()->stopFlashingText();
+ }
+ clearInfoText();
+ setCenterIndex( 0 );
+ mTimerMode = FavoriteHintShow;
+ mGenericTimer->start( FAVORITE_HINT_SHOW_DELAY );
+ }
+
+ setEnabled( !scanning );
+}
+
+/*!
+ *
+ */
+bool RadioStationCarousel::isInScanningMode() const
+{
+ return RadioUtil::scanStatus() == Scan::ScanningInMainView;
+}
+
+/*!
+ *
+ */
+void RadioStationCarousel::cleanRdsData()
+{
+ mItems[CenterItem]->cleanRdsData();
+}
+
+/*!
+ *
+ */
+void RadioStationCarousel::animateNewStation( const RadioStation& station )
+{
+ if ( mAnimator && mUiEngine ) {
+ const uint previousFrequency = mItems[CenterItem]->frequency();
+
+ mItems[RightItem]->setFrequency( previousFrequency );
+ mCurrentIndex = mModel->indexFromFrequency( station.frequency() );
+
+ mAnimator.data()->startNumberScroll( previousFrequency, station.frequency() );
+ }
+}
+
+/*!
+ *
+ */
+void RadioStationCarousel::cancelAnimation()
+{
+ if ( mAnimator ) {
+ mAnimator.data()->stopAll();
+ }
+}
+
+/*!
+ *
+ */
+void RadioStationCarousel::setInfoText( CarouselInfoText::Type type )
+{
+ mInfoTextType = type;
+ if ( type == CarouselInfoText::NoFavorites || type == CarouselInfoText::FavoriteIconHint ) {
+// mInfoText->setPlainText( hbTrId( "txt_rad_dialog_long_press_arrow_keys_to_search_str" ) );
+ //TODO: Remove hardcoding. Temporarily hardcoded for usability testing
+ mInfoText->setPlainText( "Tap star to mark favourites" );
+ mInfoText->setAlignment( Qt::AlignCenter );
+ mItems[CenterItem]->setItemVisibility( RadioCarouselItem::IconVisible );
+ mTimerMode = InfoText;
+ mGenericTimer->setInterval( INFOTEXT_NOFAVORITES_TIMEOUT );
+ mGenericTimer->start();
+
+ if ( !mAnimator ) {
+ mAnimator = new RadioCarouselAnimator( *this );
+ }
+ mAnimator.data()->startFlashingIcon();
+
+ } else if ( type == CarouselInfoText::ConnectAntenna ) {
+ cleanRdsData();
+ mInfoText->setPlainText( hbTrId( "txt_rad_info_connect_wired_headset1" ) );
+ mInfoText->setAlignment( Qt::AlignBottom | Qt::AlignHCenter );
+ } else if ( type == CarouselInfoText::Seeking ) {
+ cleanRdsData();
+ mInfoText->setAlignment( Qt::AlignBottom | Qt::AlignHCenter );
+ mInfoText->setPlainText( hbTrId( "txt_rad_list_seeking" ) );
+ } else if ( type == CarouselInfoText::Scanning ) {
+ cleanRdsData();
+ mInfoText->setAlignment( Qt::AlignBottom | Qt::AlignHCenter );
+ mInfoText->setPlainText( hbTrId( "txt_rad_list_searching_all_available_stations_ple" ) );
+ }
+
+ mInfoText->setVisible( true );
+}
+
+/*!
+ *
+ */
+void RadioStationCarousel::clearInfoText()
+{
+ if ( mInfoTextType != CarouselInfoText::None ) {
+ if ( mAnimator ) {
+ mAnimator.data()->stopFlashingIcon();
+ }
+
+ mGenericTimer->stop();
+ mInfoTextType = CarouselInfoText::None;
+ mInfoText->setVisible( false );
+ mInfoText->clear();
+ mItems[CenterItem]->setItemVisibility( RadioCarouselItem::AllVisible );
+ }
+}
+
+/*!
+ *
+ */
+void RadioStationCarousel::setManualSeekMode( bool manualSeekActive )
+{
+ mManualSeekMode = manualSeekActive;
+ setEnabled( !manualSeekActive );
+
+ mItems[CenterItem]->setSeekLayout( manualSeekActive );
+ if ( !manualSeekActive ) {
+ clearInfoText();
+ setFrequency( mUiEngine->currentFrequency(), TuneReason::Unspecified );
+ }
+}
+
+/*!
+ *
+ */
+void RadioStationCarousel::drawOffScreen( QPainter& painter )
+{
+ mItems[CenterItem]->drawOffScreen( painter );
+}
+
+/*!
+ *
+ */
+void RadioStationCarousel::setLandscape( bool landscape )
+{
+ CALL_TO_ALL_ITEMS( setLandscape( landscape ) );
+}
+
+/*!
+ * Private slot
+ *
+ */
+void RadioStationCarousel::scrollPosChanged( const QPointF& newPosition )
+{
+ Q_UNUSED( newPosition );
+// const int xPos = static_cast<int>( newPosition.x() );
+// mItems[CenterItem]->setPos( xPos - mMidScrollPos, 0 );
+}
+
+/*!
+ * Private slot
+ ''
+ */
+void RadioStationCarousel::adjustAfterScroll()
+{
+ if ( isInScanningMode() ) {
+ return;
+ }
+
+ if ( mTargetIndex != -1 ) {
+ setCenterIndex( mTargetIndex );
+ }
+}
+
+/*!
+ * Private slot
+ *
+ */
+void RadioStationCarousel::update( const RadioStation& station )
+{
+ if ( !mManualSeekMode && !isInScanningMode() ) {
+ for ( int i = LeftItem; i <= RightItem; ++i ) {
+ if ( mItems[i]->frequency() == station.frequency() ) {
+ mItems[i]->update( &station );
+ }
+ }
+ }
+}
+
+/*!
+ * Private slot
+ */
+void RadioStationCarousel::updateRadioText( const RadioStation& station )
+{
+ if ( isAntennaAttached() && !isInScanningMode() ) {
+ if ( station.radioText().isEmpty() ) {
+ mItems[CenterItem]->setRadioText( "" );
+ } else {
+ mRadioTextHolder = station.radioText();
+ mTimerMode = RtPlusCheck;
+ mGenericTimer->stop();
+ mGenericTimer->setInterval( RTPLUS_CHECK_TIMEOUT );
+ mGenericTimer->start();
+ }
+ }
+}
+
+/*!
+ * Private slot
+ */
+void RadioStationCarousel::updateStations()
+{
+ if ( isInScanningMode() ) {
+ return;
+ }
+
+ setFrequency( mUiEngine->currentFrequency(), TuneReason::Unspecified );
+}
+
+/*!
+ * Private slot
+ */
+void RadioStationCarousel::timerFired()
+{
+ if ( mTimerMode == SetFrequency ) {
+ setCenterIndex( mCurrentIndex, NoSignal | IgnoreCenter );
+ mTimerMode = NoTimer;
+ } else if ( mTimerMode == RtPlusCheck ) {
+ //mItems[CenterItem]->mRadiotextLabel->setText( mRadioTextHolder );
+ mRadioTextHolder = "";
+ mTimerMode = NoTimer;
+ } else if ( mTimerMode == InfoText ) {
+ clearInfoText();
+ mTimerMode = NoTimer;
+ } else if ( mTimerMode == FavoriteHintShow ) {
+ setInfoText( CarouselInfoText::FavoriteIconHint );
+ mTimerMode = FavoriteHintHide;
+ mGenericTimer->start( FAVORITE_HINT_HIDE_DELAY );
+ } else if ( mTimerMode == FavoriteHintHide ) {
+ clearInfoText();
+ mTimerMode = NoTimer;
+ }
+}
+
+#ifdef USE_DEBUGGING_CONTROLS
+/*!
+ * Public slot
+ */
+void RadioStationCarousel::setRdsAvailable( bool available )
+{
+ QColor color = Qt::green;
+ if ( !available && mUiEngine ) {
+ LOG_FORMAT( "No RDS signal: Station has sent RDS earlier: %d", mUiEngine.model().currentStation().hasSentRds() );
+ color = mUiEngine.model().currentStation().hasSentRds() ? Qt::yellow : Qt::gray;
+ mRdsLabel->setText( "RDS" );
+ } else {
+ mRdsLabel->setText( "-RDS-" );
+ }
+ mRdsLabel->setTextColor( color );
+}
+#endif // USE_DEBUGGING_CONTROLS
+
+/*!
+ * Public slot
+ */
+void RadioStationCarousel::updateAntennaStatus( bool connected )
+{
+ mGenericTimer->stop();
+
+ if ( !connected ) {
+ setInfoText( CarouselInfoText::ConnectAntenna );
+ } else {
+ clearInfoText();
+ }
+}
+
+/*!
+ * \reimp
+ */
+void RadioStationCarousel::mousePressEvent( QGraphicsSceneMouseEvent* event )
+{
+ if ( mInfoTextType == CarouselInfoText::NoFavorites || mInfoTextType == CarouselInfoText::FavoriteIconHint ) {
+ clearInfoText();
+ }
+
+ HbScrollArea::mousePressEvent( event );
+}
+
+/*!
+ * \reimp
+ */
+void RadioStationCarousel::resizeEvent( QGraphicsSceneResizeEvent* event )
+{
+ HbScrollArea::resizeEvent( event );
+
+ const int width = (int)event->newSize().width();
+
+ mMidScrollPos = -width;
+ mMaxScrollPos = mMidScrollPos * 2;
+
+ if ( isInitialized() ) {
+ mItems[LeftItem]->setMinimumWidth( width );
+ mItems[CenterItem]->setMinimumWidth( width );
+ mItems[RightItem]->setMinimumWidth( width );
+ }
+}
+
+/*!
+ * \reimp
+ */
+void RadioStationCarousel::showEvent( QShowEvent* event )
+{
+ HbScrollArea::showEvent( event );
+// mContainer->setPos( mMidScrollPos, 0 );
+}
+
+/*!
+ * \reimp
+ */
+void RadioStationCarousel::gestureEvent( QGestureEvent* event )
+{
+// if ( HbSwipeGesture* swipeGesture = static_cast<HbSwipeGesture*>( event->gesture( Qt::SwipeGesture ) ) ) {
+// if ( swipeGesture->state() == Qt::GestureFinished ) {
+// if ( swipeGesture->horizontalDirection() == QSwipeGesture::Left ) {
+// emit skipRequested( StationSkip::Next );
+// } else if ( swipeGesture->horizontalDirection() == QSwipeGesture::Right ) {
+// emit skipRequested( StationSkip::Previous );
+// }
+// mIsCustomFreq = false;
+// }
+// return;
+// }
+
+ HbScrollArea::gestureEvent( event );
+
+ if ( HbPanGesture* gesture = qobject_cast<HbPanGesture*>( event->gesture( Qt::PanGesture ) ) ) {
+ if ( gesture->state() == Qt::GestureFinished ) {
+ adjustPos( (int)gesture->offset().x() );
+ }
+ }
+}
+
+/*!
+ * \reimp
+ */
+void RadioStationCarousel::handleIconClicked( const RadioStation& station )
+{
+ if ( mModel ) {
+ mModel->setData( QModelIndex(), station.frequency(), RadioRole::ToggleFavoriteRole );
+ }
+}
+
+/*!
+ * \reimp
+ */
+void RadioStationCarousel::handleRadiotextClicked( const RadioStation& station )
+{
+ Q_UNUSED( station );
+ mRadiotextPopup->show();
+}
+
+/*!
+ * \reimp
+ */
+void RadioStationCarousel::handleUrlClicked( const RadioStation& station )
+{
+ mUiEngine->launchBrowser( station.url() );
+}
+
+/*!
+ * \reimp
+ */
+QString RadioStationCarousel::localizeGenre( int genre )
+{
+ return mUiEngine->genreToString( genre, GenreTarget::Carousel );
+}
+
+/*!
+ * \reimp
+ */
+bool RadioStationCarousel::isInManualSeek() const
+{
+ return mManualSeekMode;
+}
+
+/*!
+ *
+ */
+RadioStation RadioStationCarousel::findStation( uint frequency )
+{
+ return mModel->findStation( frequency, FindCriteria::IncludeManualStation );
+}
+
+/*!
+ *
+ */
+bool RadioStationCarousel::isInitialized() const
+{
+ return mUiEngine != NULL;
+}
+
+/*!
+ *
+ */
+void RadioStationCarousel::setCenterIndex( int index, ScrollMode mode )
+{
+ Q_UNUSED( mode );
+ if ( mModel ) {
+ const int newIndex = trimIndex( index );
+ mCurrentIndex = newIndex;
+ mTargetIndex = -1;
+
+ if ( !mIsCustomFreq ) {
+ mItems[CenterItem]->setStation( mModel->stationAt( mCurrentIndex ) );
+ }
+
+ if ( mModel->rowCount() > 1 ) {
+ const int leftIndex = prevIndex( mCurrentIndex );
+ const int rightIndex = nextIndex( mCurrentIndex );
+ mItems[LeftItem]->setStation( mModel->stationAt( leftIndex ) );
+ mItems[RightItem]->setStation( mModel->stationAt( rightIndex ) );
+ } else {
+
+ if ( mIsCustomFreq ) {
+ const uint frequency = mItems[CenterItem]->frequency();
+ mItems[LeftItem]->setStation( mModel->findClosest( frequency, StationSkip::Previous ) );
+ mItems[RightItem]->setStation( mModel->findClosest( frequency, StationSkip::Next ) );
+ } else {
+ mItems[LeftItem]->setStation( RadioStation() );
+ mItems[RightItem]->setStation( RadioStation() );
+ }
+ }
+
+ scrollContentsTo( QPointF( -mMidScrollPos /* + delta */, 0 ), 0 );
+
+// if ( !mode.testFlag( NoSignal ) ) {
+// uint frequency = mModel->stationAt( mCurrentIndex ).frequency();
+// emit frequencyChanged( frequency, TuneReason::StationCarousel, mScrollDirection );
+// mScrollDirection = Scroll::Shortest;
+// }
+ }
+}
+
+/*!
+ *
+ */
+void RadioStationCarousel::scrollToIndex( int index, Scroll::Direction direction, ScrollMode mode )
+{
+ if ( mModel && index >= 0 ) {
+ mTargetIndex = index;
+ const int difference = calculateDifference( index, direction );
+ int scrollTime = mAutoScrollTime;
+
+ int posX = direction == Scroll::Left ? -mMaxScrollPos : 0;
+ if ( difference == 1 ) {
+ if ( direction == Scroll::Right ) {
+ posX = 0;
+ } else if ( direction == Scroll::Left ) {
+ posX = -mMaxScrollPos;
+ }
+ } else {
+ if ( direction == Scroll::Right ) {
+ // Item where the scrolling starts
+ mItems[RightItem]->setStation( mModel->stationAt( mCurrentIndex ) );
+
+ // Item that is skipped over
+ const uint centerFreq = mModel->stationAt( nextIndex( index ) ).frequency();
+ mItems[CenterItem]->setFrequency( centerFreq );
+
+ // Item where the scrolling ends
+ const RadioStation station = mModel->stationAt( index );
+ mItems[LeftItem]->setStation( station );
+
+ mContainer->setPos( mMaxScrollPos, 0 );
+ posX = 0;
+ } else if ( direction == Scroll::Left ) {
+ // Item where the scrolling starts
+ mItems[LeftItem]->setStation( mModel->stationAt( mCurrentIndex ) );
+
+ // Item that is skipped over
+ const uint centerFreq = mModel->stationAt( prevIndex( index ) ).frequency();
+ mItems[CenterItem]->setFrequency( centerFreq );
+
+ // Item where the scrolling ends
+ const RadioStation station = mModel->stationAt( index );
+ mItems[RightItem]->setStation( station );
+
+ mContainer->setPos( 0, 0 );
+ posX = -mMaxScrollPos;
+ }
+ }
+
+ if ( mode.testFlag( UpdateItem ) ) {
+ //item->update();
+ }
+
+ if ( mode.testFlag( NoAnim ) ) {
+ scrollTime = 0;
+ } else if ( mode.testFlag( FromPanGesture ) ) {
+ scrollTime = 500;
+ } else if ( mode.testFlag( FromSwipeGesture ) ) {
+ scrollTime = 100;
+ }
+
+ scrollContentsTo( QPointF( posX, 0 ), scrollTime );
+ }
+}
+
+/*!
+ *
+ */
+int RadioStationCarousel::calculateDifference( int targetIndex, Scroll::Direction& direction )
+{
+ int difference = 0;
+ const int rowCount = mModel->rowCount();
+
+ int diffToLeft = 0;
+ int diffToRight = 0;
+ if ( targetIndex > mCurrentIndex ) {
+ const int loopedDiff = mCurrentIndex + rowCount - targetIndex;
+ const int directDiff = targetIndex - mCurrentIndex;
+ diffToLeft = loopedDiff;
+ diffToRight = directDiff;
+ } else {
+ const int loopedDiff = targetIndex + rowCount - mCurrentIndex;
+ const int directDiff = mIsCustomFreq ? 1 : mCurrentIndex - targetIndex;
+ diffToLeft = directDiff;
+ diffToRight = loopedDiff;
+ }
+
+ if ( direction == Scroll::Right ) {
+ difference = diffToLeft;
+ } else if ( direction == Scroll::Left ) {
+ difference = diffToRight;
+ } else {
+ if ( diffToLeft < diffToRight ) {
+ difference = diffToLeft;
+ direction = Scroll::Right;
+ } else {
+ difference = diffToRight;
+ direction = Scroll::Left;
+ }
+ }
+
+ return difference;
+}
+
+/*!
+ *
+ */
+bool RadioStationCarousel::isScrollingAllowed() const
+{
+ const int rowCount = mModel->rowCount();
+ return rowCount > 1 || ( rowCount == 1 && mIsCustomFreq );
+}
+
+/*!
+ *
+ */
+void RadioStationCarousel::adjustPos( int offset )
+{
+ int newPos = mMidScrollPos;
+ const int threshold = (int)size().width() / 5;
+ int newIndex = mCurrentIndex;
+ bool needsToScroll = false;
+
+ if ( isScrollingAllowed() && abs( offset ) >= threshold ) {
+ needsToScroll = true;
+ if ( offset > 0 ) {
+ newPos = 0;
+ mScrollDirection = Scroll::Right;
+ if ( !mIsCustomFreq ) {
+ const uint newFreq = mModel->findClosest( mItems[CenterItem]->frequency(), StationSkip::PreviousFavorite ).frequency();
+ if ( newFreq > 0 ) {
+ newIndex = mModel->indexFromFrequency( newFreq );
+ } else {
+ needsToScroll = false;
+ newPos = mMidScrollPos;
+ }
+ }
+ } else {
+ mScrollDirection = Scroll::Left;
+ newPos = mMaxScrollPos;
+
+ const uint newFreq = mModel->findClosest( mItems[CenterItem]->frequency(), StationSkip::NextFavorite ).frequency();
+ if ( newFreq > 0 ) {
+ newIndex = mModel->indexFromFrequency( newFreq );
+ } else {
+ needsToScroll = false;
+ newPos = mMidScrollPos;
+ }
+ }
+ }
+
+ newIndex = trimIndex( newIndex );
+ if ( needsToScroll ) {
+ const uint frequency = mModel->stationAt( newIndex ).frequency();
+ emit frequencyChanged( frequency, TuneReason::StationCarousel, mScrollDirection );
+ scrollToIndex( newIndex, mScrollDirection, RadioStationCarousel::FromPanGesture );
+ mIsCustomFreq = false;
+ } else {
+ scrollContentsTo( QPointF( -newPos, 0 ), 300 );
+ }
+}
+
+/*!
+ *
+ */
+int RadioStationCarousel::trimIndex( int index )
+{
+ const int count = mModel ? mModel->rowCount() : 0;
+
+ if ( count == 0 ) {
+ return -1;
+ }
+
+ if ( index < 0 ) {
+ index = count - 1;
+ }
+ index %= count;
+ return index;
+}
+
+/*!
+ *
+ */
+int RadioStationCarousel::prevIndex( int index )
+{
+ if ( !mIsCustomFreq ) {
+ --index;
+ }
+ return trimIndex( index );
+}
+
+/*!
+ *
+ */
+int RadioStationCarousel::nextIndex( int index )
+{
+ return trimIndex( index + 1 );
+}
+
+/*!
+ *
+ */
+void RadioStationCarousel::skip( StationSkip::Mode mode )
+{
+ if ( mModel ) {
+ const uint frequency = mModel->findClosest( mItems[CenterItem]->frequency(), mode ).frequency();
+ const int index = mModel->indexFromFrequency( frequency );
+ const Scroll::Direction direction = RadioUtil::scrollDirectionFromSkipMode( mode );
+ scrollToIndex( index, direction, RadioStationCarousel::NoSignal );
+ }
+}