/*

* Copyright (c) 2002-2008 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:  A default control in the status pane's small indicator pane.

*                Editor indicators uses also same control in the navigation

*                pane and in queries.

*

*/

#ifndef AKNINDICATORCONTAINER_H

#define AKNINDICATORCONTAINER_H

//  INCLUDES

#include <AknControl.h>

#include <eikspane.h>

class CIncallStatusBubble;

class CAknIndicator;

class CAknIndicatorContainerExtension;

class CAknPictographInterface;

class MAknIndicatorObserver;

/**

 * The default control in the status pane's small indicator pane.

 * This container is also used for the status indicators in navi pane and

 * for editor indicators in queries.

 */

class CAknIndicatorContainer : public CAknControl, public MEikStatusPaneObserver

	{

friend class CAknIndicatorContainerExtension;

friend class CAknIndicatorDataObserver;

public:

    /**

    * Layout orientations of the indicator container.

    * These are used to specify how the indicators are laid

    * out inside the indicator container.

    */

    enum TLayoutOrientation

        {

        EVertical,  ///< Indicators are arranged vertically.

        EHorizontal ///< Indicators are arranged horizontally.

        };

    /** Alignment of the indicators. */

    enum TIndicatorAlignment

        {

        ELeft,   ///< Indicators are aligned on the left side.

        ERight   ///< Indicators are aligned on the right side.

        };

    /**

    * Context of the indicator container.

    * These are used to specify what type of status indicators

    * the indicator container contains.

    */

    enum TIndicatorContext

        {

        EUniversalIndicators = 0,   ///< Universal status indicators.

        ENaviPaneEditorIndicators,  ///< Editor indicators shown in navi pane.

        EQueryEditorIndicators,     ///< Editor indicators shown in queries.

        EFindIndicators             ///< Search field indicators.

        };

    /**

    * Position of a indicator.

    * These are used for invidual indicators to coarsely specify

    * where they are positioned inside the indicator container.

    */

    enum TIndicatorPosition

        {

        ELeftSide,  ///< Indicator positioned on the left side.

        ERightSide, ///< Indicator positioned on the right side.

        EMiddle     ///< Indicator positioned in the middle.

        };

    /** Additional flags that can be used for custom indicators. */

    enum TCustomIndicatorFlags

    	{

    	EMultiColorIndicator       = 0x1, ///< Indicator is multi-colored.

    	EIndicatorPositionInverted = 0x2  ///< Indicator's position is inverted.

    	};

    /** Layout modes of indicator container. */

    enum TLayoutMode

		{

		ELayoutModeUsual, ///< Used for universal indicators when not in idle.

		ELayoutModeWide   ///< Used for navi pane indicators and universal indicators in idle.

		};

public:

    /**

    * Default constructor.

    * Creates an @c EUniversalIndicators object.

    */

    IMPORT_C CAknIndicatorContainer();

    /**

    * Constructor. Creates @c EUniversalIndicators, @c ENaviPaneEditorIndicators

    * or @c EQueryEditorIndicators object.

    *

    * @param  aIndicatorContext  Indicator container context.

    */

    IMPORT_C CAknIndicatorContainer( TInt aIndicatorContext );

    /**

    * Destructor.

    */

    IMPORT_C ~CAknIndicatorContainer();

    /**

    * Second-phase constructor.

    */

    IMPORT_C void ConstructL();

    /**

    * Sets indicator state. The state can be one of the following:

    *   - @c EAknIndicatorStateOff

    *

	*   - @c EAknIndicatorStateOn

	*

	*   - @c EAknIndicatorStateAnimate

	*

	* Editor indicators do not support animation.

    *

    * @param  aIndicatorId  ID of the indicator to be modified.

    * @param  aState        A state to be set to the indicator.

    * @param  aDrawNow      A flag to indicate if the indicator

    *                       is redrawn with this call.

    */

    IMPORT_C void SetIndicatorState( TUid aIndicatorId,

                                     TInt aState,

                                     TBool aDrawNow = ETrue );

    /**

    * Return the current state of an indicator.

    *

    * @param  aIndicatorId  ID of the indicator.

    * @return Current state of the indicator.

    */

    IMPORT_C TInt IndicatorState( TUid aIndicatorId );

    /**

    * Sets value to the message length indicator

    * (@c EAknNaviPaneEditorIndicatorMessageLength).

    *

    * @param  aIndicatorId  ID of the indicator to be modified.

    * @param  aString       Value of the indicator.

    */

    IMPORT_C void SetIndicatorValueL( TUid aIndicatorId, const TDesC& aString );

    /**

    * Sets value to the incall status bubble indicator on the

    * top of the status pane.

    *

    * @param  aFlags  Mode of the bubble.

    */

    IMPORT_C void SetIncallBubbleFlags( const TInt& aFlags );

    /**

    * Constructs the object from resource.

    *

    * @param  aReader  Resource reader.

    */

    IMPORT_C void ConstructFromResourceL( TResourceReader& aReader );

    /**

    * Returns the context of the indicator container.

    *

    * @return Context of the indicator container.

    */

    IMPORT_C TInt IndicatorContext() const;

public: // From base class @c MEikStatusPaneObserver.

    /**

    * The @c MEikStatusPaneObserver interface allows a status pane observer

    * to pick up changes in the size or position of the status pane.

    * Such events will be as a result of layout changes which

    * cause an actual change in the status pane rectangle.

    */

    IMPORT_C void HandleStatusPaneSizeChange();

public: // From base class @c CCoeControl.

    /**

    * Handles pointer events.

    *

    * @param  aPointerEvent  The pointer event.

    */

    IMPORT_C void HandlePointerEventL( const TPointerEvent& aPointerEvent );

protected: // From base class @c CCoeControl.

    /**

	* Handles a change to the control's resources of type @c aType

	* which are shared across the environment, e.g. color scheme change.

    * Responds fade events and fades incall status bubble window group.

    *

	* @param  aType  Event type.

	*/

   	IMPORT_C virtual void HandleResourceChange( TInt aType );

    /**

    * Handles size change events.

    */

    IMPORT_C virtual void SizeChanged();

    /**

    * Handles position change events.

    */

    IMPORT_C virtual void PositionChanged();

    /**

    * Returns number of controls inside the context pane control.

    *

    * @return Amount of component controls.

    */

    IMPORT_C virtual TInt CountComponentControls() const;

    /**

    * Returns a control determined by control index.

    *

    * @param  aIndex  Index of a control to be returned.

    * @return Pointer to control

    */

    IMPORT_C virtual CCoeControl* ComponentControl( TInt aIndex ) const;

private: // From base class @c CCoeControl.

    IMPORT_C virtual void Draw(const TRect& aRect) const;

private: // From base class @c CAknControl.

    IMPORT_C void* ExtensionInterface( TUid aInterface );

private:

    virtual void Reserved_1();

    void PrioritizeIndicatorsL();

   	static TInt TickerCallback( TAny* aThis );

    TInt DoTick();

    void IncallBubbleSizeChanged( TBool aAllowIdleStateBubble );

    void SizeChangedInSmallStatusPane();

    void SizeChangedInNormalStatusPane();

    void SizeChangedInStaconPane();

    void SizeChangedInFlatStatusPane();

    void SizeChangedInExtendedStatusPane();

    void SizeChangedInIdleExtendedStatusPane();

	void SizeChangedInIdleVertical();

    void SetContainerWindowNonFading( TBool aNonFading );

    void SetupIndicatorLayoutModes();

    TInt SelectIndicatorLayoutMode();

	void CreateIndicatorFromPaneResourceL( TUid aUid,

	                                       TInt aIndicatorPaneResourceId,

	                                       TInt aCustomIndicatorFlags );

	TBool IndicatorExists( TUid aUid ) const;

	void CreateIncallBubbleL();

	TBool UpdateSmallLayoutL();

	void SetIncallBubbleDisabled( TBool aDisabled );

	void ResetAnimTicker( TBool bForeground );

public:

    /**

    * Sets value to the progress bar indicator

    * (@c EAknNaviPaneEditorIndicatorProgressBar).

    * Panics if the specified indicator is not a progress bar indicator.

    *

    * @since 2.1

    * @param  aIndicatorId  ID of the indicator to be modified.

    * @param  aValue        Current progress of the task that bar describes.

    * @param  aMaxValue     Progress value when task is finished.

    *

    */

    IMPORT_C void SetIndicatorValue( TUid aIndicatorId,

                                     TInt aValue,

                                     TInt aMaxValue );

    /**

    * Redraws those indicators that are visible and contain pictographs.

    */

    void DrawPictographArea();

    /**

    * Returns the pictograph interface owned by the indicator container,

    * or @c NULL if pictographs are not supported.

    */

    CAknPictographInterface* PictographInterface() const;

    /**

    * Sets whether incall bubble is shown also on the top of the idle

    * status pane. Normally it is shown only in usual statuspane layouts,

    * but with this method it can be set to shown also in idle.

    *

    * NOTE: This method works only if indicatorcontainer is used as container

    *       for universal indicators.

    *

    * @param  aAllowed  If true incall bubble is shown also in idle statuspane.

    *                   Otherwise bubble is shown only in usual statuspane

    *                   layouts.

    */

    IMPORT_C void SetIncallBubbleAllowedInIdle( TBool aAllowed );

    /**

    * Sets whether incall bubble is shown on the top of the usual status pane.

    * Normally it is shown in usual statuspane layouts, but with this

    * method it can prevent it to be shown.

    *

    * NOTE: This method works only if indicatorcontainer is used as

    *       container for universal indicators.

    *

    * @param  aAllowed  If true incall bubble is shown in usual statuspane.

    */

    IMPORT_C void SetIncallBubbleAllowedInUsual( TBool aAllowed );

    /**

    * Sets observer for given indicator.

    *

    * @param  aIndicatorObserver  Observer of the indicator.

    * @param  aIndicatorUid       UID of indicator to be observed.

    */

    IMPORT_C void SetIndicatorObserver( MAknIndicatorObserver* aIndicatorObserver,

                                        TUid aIndicatorUid );

    /**

    * Creates a custom indicator.

    * Indicators created with this method can be used in addition

    * to default indicators.

    *

    * @since 3.1

    *

    * @param  aIndicatorResourceId   Resource ID of INDICATOR struct to be used

    *                                in costructing indicator.

    *        	                     UID in the resource is ignored, a dynamic

    *                                UID is given to indicator and returned

    *                                to caller.

    * @param  aCustomIndicatorFlags  Flags that can be used to set additional

    *                                indicator properties.

    *                                  - @c EMultiColorIndicator:

    *                                       Indicator is shown as multicolor

    *                                       (default is 2-color).

    *                                  - @c EIndicatorPositionInverted:

    *                                       Indicator is aligned to the opposite

    *                                       side than default (default is right

    *                                       side). Note that this flag does not

    *                                       quarantee exact location for the

    *                                       indicator, indicators are shown in

    *                                       priority order and location may vary

    *                                       and look different in different layouts.

    *

    * @return UID of the new indicator.

    *

    */

	IMPORT_C TUid CreateIndicatorFromResourceL( TInt aIndicatorResourceId,

	                                            TInt aCustomIndicatorFlags );

    /**

    * Replaces the icon of the given indicator.

    *

    * @since 3.1

    * @param  aIndicator   UID of the indicator.

    * @param  aState       State which icon is replaced (@c EAknIndicatorStateOn

    *                      or @c EAknIndicatorStateAnimate)

    * @param  aLayoutMode  Layout mode of the icon to be replaced

    *                      (@c ELayoutModeUsual or @c ELayoutModeWide)

    * @param  aIconBitmap  Bitmap of the new icon. Ownership is transferred to

    *                      @c CAknIndicatorContainer.

    * @param  aIconMask    Mask of the new icon. Ownership is transferred to

    *                      @c CAknIndicatorContainer.

    * @param  aIconIndex   If parameter aState is @c EAknIndicatorStateAnimate,

    *                      then this parameter must contain the index of the

    *                      icon to be replaced in the animation sequence.

    *                      Old icon must exist for given index so that the

    *                      number of animation frames does not change.

    */

	IMPORT_C void ReplaceIndicatorIconL( TUid aIndicator,

	                                     TInt aState,

	                                     TInt aLayoutMode,

	                                     CFbsBitmap* aIconBitmap,

	                                     CFbsBitmap* aIconMask,

	                                     TInt aIconIndex = 0 );

private:

    /** Array of the indicators. */

   	typedef CArrayPtrFlat<CAknIndicator> CAknIndicatorQueue;

    CAknIndicatorQueue* iIndicators;

    /** Layout orientations. */

    TLayoutOrientation iLayoutOrientation;

    TLayoutOrientation iPreviousLayoutOrientation;

    /** Alignment of the indicators. */

    TIndicatorAlignment iAlignment;

    /** Number of indicators shown. */

    TInt iIndicatorsShown;

    /** Number of animated indicators shown. */

    TInt iAnimatedIndicatorsShown;

    /** Extension class. */

    CAknIndicatorContainerExtension* iExtension;

    /** Context of the indicators. */

    TInt iIndicatorContext;

    /** Indicator animation timer. */

   	CPeriodic* iTicker;

   	/** Reserved for future use. */

    TBool iSpare2;

    /** Synchronization value used in the indicator animations. */

    TInt iSynchronizingValue;

    /** Small incall status bubble. */

    CIncallStatusBubble* iIncallBubble;

    };

#endif // AKNINDICATORCONTAINER_H

// End of File