ui/views/fullscreenview/inc/glxcoverflow.h
changeset 58 383b67fbdb11
parent 52 a3a4c0de738e
child 62 36d93b4dc635
--- a/ui/views/fullscreenview/inc/glxcoverflow.h	Fri Aug 06 20:44:25 2010 +0530
+++ b/ui/views/fullscreenview/inc/glxcoverflow.h	Mon Aug 23 18:06:16 2010 +0530
@@ -36,8 +36,7 @@
     NO_MOVE,
     TAP_MOVE,
     LEFT_MOVE,
-    RIGHT_MOVE,
-    LONGPRESS_MOVE,
+    RIGHT_MOVE
 } GlxUserMove;
 
 typedef enum
@@ -48,98 +47,299 @@
     ZOOM_START_EVENT
 } GlxCoverFlowEvent;
 
+/**
+ * Class Description
+ * This is cover flow class to show and browse the image in fullscreen mode.
+ */
 class GlxCoverFlow : public HbWidget
 {
 Q_OBJECT
 
 public :
+    /**
+     * Constructor
+     * @param - QGraphicsItem parent of this widget
+     */    
 	GlxCoverFlow (QGraphicsItem *parent = NULL);
+	
+    /**
+     * Destructor
+     */	
 	~GlxCoverFlow ();
-    void setItemSize (QSize &size);
-    void setModel (QAbstractItemModel *model);
-    void indexChanged (int index);
-    void setUiOn(bool uiOn) { mUiOn = uiOn; }
+	
+	/**
+	 * setItemSize() - To set the fullscreen image size.
+	 * @param - size of fullscreen.
+	 */
+    void setItemSize( QSize &size );
+    
+    /**
+     * setModel() - To set the data provider of the widget.
+     * @param - data model pointor 
+     */
+    void setModel( QAbstractItemModel *model );
+    
+    /**
+     * indexChanged() - Call back to get the focus index change.
+     * @param - new focus index.
+     */
+    void indexChanged( int index );
+    
+    /**
+     * setUiOn() - Call back to get the ui on/off status.
+     * @param - ui on/off status
+     */
+    void setUiOn( bool uiOn ) { mUiOn = uiOn; }
+    
+    /**
+     * partiallyClean() - To clean all the item except focus one for improved the
+     * view transition animation.
+     */
     void partiallyClean();
-    void partiallyCreate(QAbstractItemModel *model, QSize itemSize, int posY = 0 );
-	void setCoverFlow();
+    
+    /*
+     * partiallyCreate() - To update the focus item only for improved the view transition
+     * animtaion.
+     * @param - data model pointer
+     * @param - size of fullscreen.
+     * @param - image pos in the screen. 
+     */
+    void partiallyCreate( QAbstractItemModel *model, QSize itemSize, int posY = 0 );
+	
+    /**
+	 * setCoverFlow() - To initialise the coverflow.
+	 */
+    void setCoverFlow();
+    
+    /**
+     * ClearCoverFlow() - To cleanup the memory and connection.
+     */
     void ClearCoverFlow();
-	void setMultitouchFilter(QGraphicsItem* multitouchFilter);
+    
+    /**
+     * setMultitouchFilter(() - To Set the widget who is interested in multi touch
+     * gesture event.
+     * @param - widget pointer
+     */
+	void setMultitouchFilter( QGraphicsItem* multitouchFilter );
 	
-	/*
-     * To get the focus index
+	/**
+     * getFocusIndex() - To return the focus index
+     * @return - focus index.
      */
     int getFocusIndex( );
 
-    /*
-     * To get the full screen icon of the image
+    /**
+     * getIcon() - to retuen the full screen icon of the image
+     * @param  - index of imges which icon is required.
+     * @return - icon of the image.
      */
     HbIcon getIcon( int index );
 		    
 public slots:
-	void zoomStarted(int index);
-	void zoomFinished(int index);
+    /**
+     * zoomStarted() - Call back about user has start the zooming.
+     * @param - focus index.
+     */
+	void zoomStarted( int index );
+	
+	/**
+	 * zoomFinished() - Call back about user has finished the zoom and come back 
+	 * to coverflow.
+	 *  @param - focus index.
+	 */
+	void zoomFinished( int index );
 
 signals :
-    void coverFlowEvent(GlxCoverFlowEvent e);
-    void changeSelectedIndex(const QModelIndex &index);
+    /**
+     * coverFlowEvent() - To emit signal about coverflow event happen like panning, zomming ( For ui off ),
+     * Tap ( for ui on/off ) etc.
+     * @param - type of event
+     */
+    void coverFlowEvent( GlxCoverFlowEvent e );
+    
+    /**
+     * changeSelectedIndex() - To emit the signal about focus inde change
+     * @param - new focus index
+     */
+    void changeSelectedIndex( const QModelIndex &index );
+    
+    /**
+     * autoLeftMoveSignal() - Internal signal to move the next image with transition animation.
+     */
     void autoLeftMoveSignal();
+    
+    /**
+     * autoRightMoveSignal() - Internal signal to move the previous image with transition animation.
+     */
     void autoRightMoveSignal();
-    void doubleTapEventReceived(QPointF position);
+    
+    /**
+     * doubleTapEventReceived() - To emit the signal about double tap happen.
+     * @param - coordinate of double tap postion with respect of view.
+     */
+    void doubleTapEventReceived( QPointF position );
+    
+    /**
+     * moveNextSignal() - Internal signal to handle the buffering logic when user move
+     * to prevoius image.
+     */
+    void moveNextSignal();
+    
+    /**
+     * movePreviousSignal() - Internal signal to handle the buffernig loigc when user move 
+     * to previous image.
+     */
+    void movePreviousSignal();
 
 protected slots:
-    void panGesture ( const QPointF & delta )  ;
-    void longPressGesture(const QPointF &point) ;
-    void dataChanged(QModelIndex startIndex, QModelIndex endIndex);
-    void rowsInserted(const QModelIndex &parent, int start, int end);
-    void rowsRemoved(const QModelIndex &parent, int start, int end);
+    /**
+     * panGesture() - To handle the pan gesture event.
+     * @param -  user move delta postion.
+     */
+    void panGesture ( const QPointF & delta ) ;
+    
+    /**
+     * dataChanged() - call back to monitor the widget data changed.
+     * @param - start index of data changed.
+     * @param - end index of data changed.
+     */
+    void dataChanged( QModelIndex startIndex, QModelIndex endIndex );
+    
+    /**
+     * rowsInserted() - call back of new row inserted in the model.
+     * @param - Items are inserted under parent.
+     * @param - start index of items inserted.
+     * @param - end index of items removed.
+     */    
+    void rowsInserted( const QModelIndex &parent, int start, int end );
+    
+    /**
+     * rowsRemoved() - call back of new row removed in the model.
+     * @param - Items are removed from parent item.
+     * @param - start index of items inserted.
+     * @param - end index of items removed.
+     */    
+    void rowsRemoved( const QModelIndex &parent, int start, int end );
+    
+    /**
+     * modelDestroyed() - call back to monitor the model destroy.
+     */
     void modelDestroyed();
+
+    /**
+     * autoLeftMove() - To play the next image move and bounce back transition animation.
+     */
     void autoLeftMove();
+    
+    /**
+     * autoRightMove() - To play the previous image move and bounce back transition animation.
+     */
     void autoRightMove();
+    
+    /**
+     * moveNextImage() - To Handle user next image move for buffering logic, emit the signal about
+     * new focus index and set some widget properties.
+     */
+    void moveNextImage();
+    
+    /**
+     * movePreviousImage() - To Handle user pervious image move for buffering logic, emit the signal about
+     * new focus index and set some widget properties.
+     */    
+    void movePreviousImage();
 
 protected:
-	void gestureEvent(QGestureEvent *event);
-    void move(int value);
+    /**
+     * gestureEvent() - override function to handle the gesture event.
+     * @param - pointer of QGestureEvent
+     */
+	void gestureEvent( QGestureEvent *event );
+	
+	/**
+	 * move() - Change the postion of items for transition animation.
+	 * @parma - delta move.
+	 */
+    void move( int value );
+    
+    /**
+     * setRows() - set the number of rows.
+     */
     void setRows() ;
+    
+    /**
+     * setStripLen() - set the virtual strip length of coverflow.
+     */
     void setStripLen();
+    
+    /**
+     * calculateIndex() - For cyclic cover flow map the index to actual item index.
+     * @param - index of the index.
+     */
     int calculateIndex(int index);
     
+    /**
+     * loadIconItems() - Set the icon, size and postion of the icon items.
+     */
     void loadIconItems (); 
-    void updateIconItem (qint16 selIndex, qint16 selIconIndex, qint16 deltaX);
     
-    /*
-     * In the case of animated image, it will play the animation for focus image
+    /**
+     * updateIconItem() - Set the icon, size and postion of the a particular item.
+     * It is used to support buffering logic and when user move to next or previous image.
+     * @param - image index.
+     * @param - item index in array.
+     * @param - position of the item.
+     */
+    void updateIconItem ( qint16 selIndex, qint16 selIconIndex, qint16 posX );
+    
+    /**
+     * playAnimation() - In the case of animated image, it will play the animation for focus image
      */
     void playAnimation();
     
-    /*
-     * To stop the animation
+    /**
+     * stopAnimation() - To stop the animation
      */
     void stopAnimation();
     
     /*
-     * clear all the model connection
+     * clearCurrentModel() - clear all the model connection
      */
     void clearCurrentModel();
     
     /*
-     * add the connection to the model
+     * initializeNewModel() - add the connection to the model
      */
     void initializeNewModel();
     
     /*
-     * reset all the data of cover flow
+     * resetCoverFlow() - reset all the data of cover flow
      */    
     void resetCoverFlow();
+    
+    /**
+     * getSubState() - To get the substate of fullscreen state.
+     * @return - return the substate of fullscreen state.
+     */
     int getSubState();
-    void timerEvent(QTimerEvent *event);
     
-    /*
-     * To get the URI of the image
+    /**
+     * timerEvent() - To handle the double tap timer
+     * @param - pointer of QTimerEvent.
+     */
+    void timerEvent( QTimerEvent *event );
+    
+    /**
+     * getUri() - To get the URI of the image.
+     * @param - image index.
+     * @return - return the uri of the image.
      */
     QString getUri( int index );
     
-    /*
-     * To get the GIF file info of the image
+    /**
+     * isAnimatedImage() - To get the GIF file info of the image
+     * @param - image index.
+     * @return - true if it GIF image else false.
      */
     bool isAnimatedImage( int index );
     
@@ -147,7 +347,6 @@
 	HbIconItem *mIconItem[NBR_ICON_ITEM];      //at most contain only five item
     qint16 mSelItemIndex;                    // current full screen index
     qint16 mRows;                        // total number of item  
-    //QModelIndex mIndex;                  //current model index of seleced item
     qint16 mSelIndex;                    // remove once model concept is integreted
     qint32 mStripLen;                    //virtual strip lenght
     qint32 mCurrentPos;                   //current postion in the virtual strip
@@ -161,6 +360,7 @@
 	QGraphicsItem* mMultitouchFilter;
     int mTimerId;
     bool mIsInit;
+    bool mIsAutoMoving;
 };
 
 #endif /* GLXCOVERFLOW_H_ */