author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 18 Aug 2010 09:49:03 +0300 | |
changeset 41 | 3a6b55c6390c |
child 54 | a8ba0c289b44 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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|
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#ifndef RADIOFREQUENCYSTRIPBASE_H |
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#define RADIOFREQUENCYSTRIPBASE_H |
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// System includes |
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#include <QMap> |
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#include <QHash> |
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#include <HbEffect> |
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#include <QColor> |
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// User includes |
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#include "radiostripbase.h" |
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#include "radiofrequencystripdef.h" |
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// Forward declarations |
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class RadioFrequencyItem; |
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class HbPushButton; |
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class QTimer; |
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class QModelIndex; |
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class HbDocumentLoader; |
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// Class declaration |
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class RadioFrequencyStripBase : public RadioStripBase |
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{ |
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Q_OBJECT |
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Q_PROPERTY(int itemHeight READ itemHeight WRITE setItemHeight) |
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Q_PROPERTY(uint frequency READ frequency) |
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friend class RadioFrequencyItem; |
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public: |
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RadioFrequencyStripBase( QGraphicsItem* parent = 0 ); |
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void setItemHeight( int itemHeight ); |
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int itemHeight() const; |
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void initbase( uint minFrequency, uint maxFrequency, uint stepSize, uint frequency ); |
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void createButtonsFromDocml( HbDocumentLoader& uiLoader, const QString& leftButtonName, const QString& rightButtonName ); |
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void createButtons(); |
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virtual void setFrequency( const uint frequency, int reason, Scroll::Direction direction = Scroll::Shortest ); |
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uint frequency() const; |
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bool isInManualSeekMode() const; |
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void cancelManualSeek(); |
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void addScannedStation( uint frequency ); |
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void updateFavorite( uint frequency ); |
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public slots: |
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void setScanningMode( bool isScanning ); |
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signals: |
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void manualSeekChanged( bool manualSeek ); |
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private slots: |
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void initEmptyItems(); |
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void removeStation( const QModelIndex& parent, int first, int last ); |
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void updateStation( const QModelIndex& parent, int first, int last ); |
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void handleLeftButton(); |
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void handleRightButton(); |
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void handleLongLeftButton(); |
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void handleLongRightButton(); |
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void toggleManualSeek(); |
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void handleScrollingEnd(); |
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private: |
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// from base class RadioStripBase |
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void updateItemPrimitive( QGraphicsItem* itemToUpdate, int itemIndex ); |
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QGraphicsItem* createItemPrimitive( QGraphicsItem *parent ); |
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void scrollPosChanged(); |
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// from base class QGraphicsWidget |
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void resizeEvent ( QGraphicsSceneResizeEvent* event ); |
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// void showEvent( QShowEvent* event ); |
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void changeEvent( QEvent* event ); |
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// from base class HbScrollArea |
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void mousePressEvent( QGraphicsSceneMouseEvent* event ); |
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void mouseReleaseEvent( QGraphicsSceneMouseEvent* event ); |
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void gestureEvent( QGestureEvent* event ); |
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// from base class QObject |
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void timerEvent( QTimerEvent* event ); |
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// New functions |
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virtual bool isInitialized() const = 0; |
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virtual QList<FrequencyStrip::StationMarker> stationsInRange( uint minFrequency, uint maxFrequency ) const = 0; |
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virtual void emitFrequencyChanged( uint frequency, int reason, int direction ) = 0; |
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virtual void skipToPrevious() = 0; |
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virtual void skipToPreviousFavorite() = 0; |
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virtual void skipToNext() = 0; |
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virtual void skipToNextFavorite() = 0; |
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virtual void seekDown() = 0; |
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virtual void seekUp() = 0; |
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virtual bool isScanning() const = 0; |
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virtual uint frequencyAtIndex( int index ) const = 0; |
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void initModel(); |
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void initSelector(); |
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void initPositions(); |
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void initButtons(); |
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void addFrequencyPos( int pos, uint frequency, RadioFrequencyItem* item ); |
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void updateStationsInRange( int first, int last, bool stationRemoved = false ); |
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void updateItem( RadioFrequencyItem* item, uint upperRange = 0, uint ignoredFrequency = 0 ); |
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void updateAllItems(); |
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QPixmap drawPixmap( uint frequency, QList<FrequencyStrip::StationMarker> stations, RadioFrequencyItem* item ); |
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QLineF makeTab( qreal pos, int height ); |
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int selectorPos() const; |
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void scrollToFrequency( uint frequency, |
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Scroll::Direction direction = Scroll::Shortest, |
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int time = 0 ); |
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void hideButtons(); |
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void showButtons(); |
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private: // data |
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class FrequencyPos |
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{ |
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public: |
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explicit FrequencyPos( int pos, RadioFrequencyItem* item ) : |
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mPosition( pos ), |
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mItem( item ) {} |
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FrequencyPos() : |
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mPosition( 0 ), |
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mItem( 0 ) {} |
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int mPosition; |
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RadioFrequencyItem* mItem; |
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}; |
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int mItemHeight; |
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uint mMinFrequency; |
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uint mMaxFrequency; |
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uint mFrequencyStepSize; |
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uint mFrequency; |
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QGraphicsPixmapItem* mSelectorImage; |
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qreal mSeparatorPos; |
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short mMaxWidth; |
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qreal mSelectorPos; |
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QList<RadioFrequencyItem*> mFrequencyItems; |
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/** |
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* Container to help map a frequency to strip position and additional information about the frequency. |
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* In the default region contains an item for every valid frequency from 87.50 Mhz to 108.00 Mhz with |
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* stepsize 50 Khz which amounts to 410 items. |
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*/ |
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QMap<uint,FrequencyPos> mFrequencies; |
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/** |
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* Container to help map strip position to frequency. |
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* It is queried every time the strip moves so the lookup time needs to be fast. QHash is used because |
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* it offers the fastest lookup time of any other QT container. QHash stores the items in arbitrary |
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* order so we must never try to loop through them and assume they are in any particular order. |
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*/ |
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QHash<int,uint> mPositions; |
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HbPushButton* mLeftButton; |
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HbPushButton* mRightButton; |
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QTimer* mManualSeekTimer; |
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bool mManualSeekMode; |
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uint mLastReportedFrequency; |
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int mManualSeekTimerId; |
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QColor mForegroundColor; |
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}; |
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#endif // RADIOFREQUENCYSTRIPBASE_H |