--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/radioapp/radiowidgets/inc/radiofrequencystrip.h	Fri Jun 04 10:21:36 2010 +0100
@@ -0,0 +1,204 @@
+/*
+* 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:
+*
+*/
+
+#ifndef FREQUENCYSTRIP_H
+#define FREQUENCYSTRIP_H
+
+// System includes
+#include <QMap>
+#include <QHash>
+#include <HbIcon>
+#include <HbEffect>
+#include <QColor>
+
+// User includes
+#include "radiostripbase.h"
+#include "radio_global.h"
+#include "radiowidgetsexport.h"
+
+// Forward declarations
+class RadioUiEngine;
+class RadioFrequencyItem;
+class RadioStation;
+class HbPushButton;
+class QTimer;
+class QModelIndex;
+
+// Class declaration
+class WIDGETS_DLL_EXPORT RadioFrequencyStrip : public RadioStripBase
+{
+    Q_OBJECT
+    Q_PROPERTY( HbIcon leftButtonIcon READ leftButtonIcon WRITE setLeftButtonIcon )
+    Q_PROPERTY( HbIcon rightButtonIcon READ rightButtonIcon WRITE setRightButtonIcon )
+
+    friend class RadioFrequencyItem;
+
+public:
+
+    RadioFrequencyStrip();
+
+    void setLeftButtonIcon( const HbIcon& leftButtonIcon );
+    HbIcon leftButtonIcon() const;
+
+    void setRightButtonIcon( const HbIcon& rightButtonIcon );
+    HbIcon rightButtonIcon() const;
+
+    void init( RadioUiEngine* engine );
+
+    void setFrequency( const uint frequency, int reason = 0 );
+    uint frequency() const;
+
+public slots:
+
+    void updateFavorite( const RadioStation& station );
+    void setScanningMode( bool isScanning );
+
+signals:
+
+    void frequencyChanged( uint frequency, int reason ); // reason is always CommandSender::RadioFrequencyStrip
+    void skipRequested( int skipMode );
+    void seekRequested( int seekDirection );
+
+private slots:
+
+    void updateStation( const QModelIndex& parent, int first, int last );
+    void initEmptyItems();
+    void handleLeftButton();
+    void handleLongLeftButton();
+    void handleRightButton();
+    void handleLongRightButton();
+    void toggleButtons();
+    void checkIllegalPos();
+
+private:
+
+// from base class RadioStripBase
+
+    void updateItemPrimitive( QGraphicsItem* itemToUpdate, int itemIndex );
+    QGraphicsItem* createItemPrimitive( QGraphicsItem *parent );
+    void scrollPosChanged( QPointF newPosition );
+
+// from base class QGraphicsWidget
+
+    void resizeEvent ( QGraphicsSceneResizeEvent* event );
+    void showEvent( QShowEvent* event );
+    void changeEvent( QEvent* event );
+
+// from base class HbScrollArea
+
+    void mousePressEvent( QGraphicsSceneMouseEvent* event );
+    void mouseReleaseEvent( QGraphicsSceneMouseEvent* event );
+    void gestureEvent( QGestureEvent* event );
+
+// New functions
+
+    void initModel();
+
+    void initSelector();
+
+    void initPositions();
+
+    void initButtons();
+
+    void addFrequencyPos( int pos, uint frequency, RadioFrequencyItem* item );
+
+    void updateFavorites( RadioFrequencyItem* item );
+
+    void updateItems();
+
+    QPixmap drawPixmap( uint frequency, QList<RadioStation> stations, RadioFrequencyItem* item );
+
+    void emitFrequencyChanged( uint frequency );
+
+    int selectorPos() const;
+
+    void scrollToFrequency( uint frequency, int time = 0 );
+
+    void hideButtons();
+    void showButtons();
+
+private: // data
+
+    class FrequencyPos
+    {
+    public:
+        explicit FrequencyPos( int pos, RadioFrequencyItem* item ) :
+            mPosition( pos ),
+            mItem( item ) {}
+
+        FrequencyPos() :
+            mPosition( 0 ),
+            mItem( 0 ) {}
+
+        int                     mPosition;
+        RadioFrequencyItem*     mItem;
+
+    };
+
+    RadioUiEngine*              mUiEngine;
+
+    uint                        mMinFrequency;
+
+    uint                        mMaxFrequency;
+
+    uint                        mFrequencyStepSize;
+
+    uint                        mFrequency;
+
+    QGraphicsPixmapItem*        mSelectorImage;
+
+    qreal                       mSeparatorPos;
+
+    short                       mMaxWidth;
+
+    qreal                       mSelectorPos;
+
+    QList<RadioFrequencyItem*>  mFrequencyItems;
+
+    /**
+     * Container to help map a frequency to strip position and additional information about the frequency.
+     * In the default region contains an item for every valid frequency from 87.50 Mhz to 108.00 Mhz with
+     * stepsize 50 Khz which amounts to 410 items.
+     */
+    QMap<uint,FrequencyPos>     mFrequencies;
+
+    /**
+     * Container to help map strip position to frequency.
+     * It is queried every time the strip moves so the lookup time needs to be fast. QHash is used because
+     * it offers the fastest lookup time of any other QT container. QHash stores the items in arbitrary
+     * order so we must never try to loop through them and assume they are in any particular order.
+     */
+    QHash<int,uint>             mPositions;
+
+    HbIcon                      mLeftButtonIcon;
+
+    HbIcon                      mRightButtonIcon;
+
+    HbPushButton*               mLeftButton;
+
+    HbPushButton*               mRightButton;
+
+    QTimer*                     mButtonTimer;
+    bool                        mButtonsVisible;
+
+    bool                        mUserIsScrolling;
+
+    QColor                      mForegroundColor;
+
+};
+
+#endif // FREQUENCYSTRIP_H