/*

* Copyright (c) 2007-2010 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:  Base class for all camera application containers

*/

#ifndef CAMCONTAINERBASE_H

#define CAMCONTAINERBASE_H

// INCLUDES

#include <coecntrl.h>

#include <AknUtils.h>

#include "CamAppUiBase.h"             //  For TCamAppViewIds

// FORWARD DECLARATIONS

class CCamAppController;

class CAknView;

class MAknsControlContext;

class CEnhancedSoftKeys;

class CCamNaviCounterControl;

class CCamNaviProgressBarControl;

class MActivePalette2UI;

class CCamBackupContainer;

const TInt KCamPreCaptureWindowOrdinalPos = 100;

const TInt KCamPostCaptureWindowOrdinalPos = 101;

// CLASS DECLARATION

/**

* Container base class

*/

class CCamContainerBase : public CCoeControl

  {

  // =======================================================

  // Typenames

  public:

    // Was defined in multiple child classes, now moved here.

    enum TVfState // ViewFinder states

      {

      EVfStateActive,

      EVfStateFrozenDimmed,

      EVfStateActiveMasked

      };    

    // Enumeration used to indicate the pane currently visible

    enum TCamActiveNaviPane

      {

      ECamPaneUndefined,

      ECamPaneCounter,

      ECamPaneProgress

      };

  // =======================================================

  // Methods

  // Constructors and destructor

  public: 

    /**

    * Destructor.

    * @since 2.8

    */

    virtual ~CCamContainerBase();

  // -------------------------------------------------------

  // From CCoeControl

  public: 

    /**

    * Return this controls window.

    * This is needed for direct viewfinding.

    * Protected in CCoeControl. (not virtual)

    */

    RWindow& Window() const;

    /**

    * Handle events sending app to foreground or background

    * @since 2.8

    * @param aForeground whether the event brings the app to fore or background

    */

    virtual void HandleForegroundEventL( TBool aForeground );

    /** 

    * Gets an object whose type is encapsulated by the specified TTypeUid object.

    * @since 2.8

    * @param aId Encapsulates the Uid that identifies the type of object required.

    * @return Encapsulates the pointer to the object provided. 

    */

    TTypeUid::Ptr MopSupplyObject( TTypeUid aId );

    /**

    * This method should change its client rect area and redraw properly.

    * @since 2.8

    * @param aType resource change

    */

    virtual void HandleResourceChange( TInt aType );

    /**

    * Handle application level event.

    * For example focus gained and lost are notified through this method.

    * Default implementation is empty, to be replaced in inherited classes.

    * @param aEvent Event type

    */

    virtual void HandleAppEvent( const TCamAppEvent& aEvent );

    /**

    * @since 2.8

    * @param aKeyEvent the key event

    * @param aType the type of the event

    * @return TKeyResponse key event was used by this control or not

    */

    TKeyResponse OfferKeyEventL( const TKeyEvent& aKeyEvent,

                                       TEventCode aType );  

  // -------------------------------------------------------

  // New functions

  public: 

    /**

    * Passes the value of the previous view to the container

    * @since 2.8

    * @param aId The ID of the previous view

    */

    void SetPreviousViewId( TCamAppViewIds aId );

    /**

    * Sets up a navipane for use by this container

    * @param aNaviPane specifies which navipane to set up.

    * @since 3.0

    */

    void SetupNaviPanesL( TCamActiveNaviPane aNaviPane );

    /**

    * Will show the zoom pane for a set time

    * Only implemented by pre capture containers

    * @since 2.8

    */

    virtual void ShowZoomPaneWithTimer();

    /**

    * Create the ActivePalette control

    * @since 3.0

    */

    void CreateActivePaletteL();

    /**

    * Destroys the ActivePalette control

    * @since 3.0

    */

     static void DestroyActivePalette();      

    /**

    * Requests that the camera application redraws the supplied area

    * @since 3.0

    * @param aArea the area to redraw

    */

    virtual void Redraw(const TRect& aArea);

    /**

    * Load layouts for the text      

    */      

    void PrepareProcessingBackgroundL();

    /**

    * Load processing image/video text from resources.

    */

    void PrepareProcessingTextL( TBool aStillMode );  

    /**

    * Delete and null processing text, after which

    * the text will no longer be drawn.

    */

    void DismissProcessingText();

    /**

     * Load processing image text for burst from resources.

     */

    void PrepareBurstProcessingTextL();  

    /**

     * Update processing image text for burst.

     * @param aHandled number of imagedata received

     * @param aTotal number of snapshots received

     */

    void UpdateBurstProcessingTextL( TInt aHandled, TInt aTotal );  

    /**

     * Delete and null processing text, after which

     * the text will no longer be drawn.

     */

    void DismissBurstProcessingText();

    /**

    * Viewfinder layout rect

	* @param aTargetMode target mode for which viewfinder rect is required. Default(ECamControllerIdle) corresponds to current active mode.

    * @return TRect viewfinder rect from layout

    */

    TRect ViewFinderFrameRect(TCamCameraMode aTargetMode = ECamControllerIdle) const; 

    /**

    * We check for the file name whenever we call the UMP

    * or Properties view and come back.

    */

    virtual void CheckForFileName( TBool aDoCheck );

  protected: 

    /**

    * Whether or not this key is considered to be capture key

    * in the current context

    * @since 3.0

    * @param aKeyEvent the key event

    * @param aType the type of event

    * @return ETrue if this is a capture key, otherwise EFalse

    */

    TBool IsCaptureKeyL( const TKeyEvent& aKeyEvent,

                               TEventCode aType ) ;

    /**

    * Whether or not this key is considered to be shutter key

    * in the current context

    * @since 3.0

    * @param aKeyEvent the key event

    * @param aType the type of event

    * @return ETrue if this is a shutter key, otherwise EFalse

    */

    TBool IsShutterKeyL( const TKeyEvent& aKeyEvent,

                               TEventCode aType ) ;                 

    /**

    * Whether or not this key is considered to be zoom key

    * in the current context

    * @since 3.0

    * @param aKeyEvent the key event

    * @param aType the type of event

    * @return ETrue if this is a zoom key, otherwise EFalse

    */

    TBool IsZoomKeyL( const TKeyEvent& aKeyEvent,

                            TEventCode aType ) ;

    /**

    * Is zoom operation currently possible?

    * @since 3.0

    */               

    TBool ZoomAvailable();

    /**

    * Is Primary Capture Key

    * @since 9.1

    */               

    TBool IsPrimaryCameraCaptureKey( const TKeyEvent& aKeyEvent ) const ;     

    /**

    * Is Secondary Capture Key

    * @since 9.1 ( checking for scan codes )

    */               

    TBool IsSecondaryCameraCaptureKey( const TKeyEvent& aKeyEvent ) const ;    

    /**

    * Enters viewfinder mode either in image or videomode

    * depending current visible view. Also starts idle timer.

    */

    void ReserveAndStartVF();

  // -------------------------------------------------------

  // Constructors

  protected: 

    /**

    * C++ constructor

    * @since 2.8

    * @param aController reference to CCamAppController instance

    * @param aView reference to the view containing this container

    */

    CCamContainerBase( CCamAppController& aController,

                       CAknView& aView );

    /**

    * Symbian OS 2nd phase constructor.

    * @since 2.8

    * @param aRect Frame rectangle for container.

    */

    void BaseConstructL( const TRect& aRect ); 

  protected:

    /**

     * Create background context (iBgContext). May be overridden by

     * derived classes.

     * @since S60 v5.0

     */

    virtual void CreateBackgroundContextL();

public:

    /**

    * Returns the number of component controls

    * @since 3.0

    * @return The number of owned controls to display

    */       

    TInt CountComponentControls() const;

    /**

    * Returns the specified component control

    * @since 3.0

    * @param aIndex The index of the control to return

    * @return Pointer to the specified control

    */               

    CCoeControl* ComponentControl( TInt aIndex ) const;

  // =======================================================

  private:

    /*

    * Checks for the zoom key with the mapped key's scan code

    */

    TBool CheckForZoomKey( const TKeyEvent& aKeyEvent );  

    /*

    * Checks for the zoom-in/out key from the mapped key's scan code 

    * from the zoom array

    */

    TBool CheckInZoomKeyArray( const TKeyEvent& aKeyEvent );

  // Data

  protected: 

    CAknView& iView;

    CCamAppController& iController; 

    // The ID of the previous view

    TCamAppViewIds iPrevViewId;

    // context for skin background drawing

    MAknsControlContext* iBgContext;

    // The current pane displayed in the Application Pane

    TCamActiveNaviPane iPaneInUse;

    // Instance of Navi Counter control (not owned)

    CCamNaviCounterControl* iNaviCounterControl;

    // Instance of Navi Progress control (not owned)

    CCamNaviProgressBarControl* iNaviProgressBarControl;

    // Instance of ActivePalette2 control (not owned)

    static MActivePalette2UI*   iActivePalette;

    // ETrue if shutter key (half-press) has been made

    TBool iKeyShutter;

    // zoom keys for primary and secondary camera

    RArray<TInt> iPrimaryZoomInKeys;

    RArray<TInt> iPrimaryZoomOutKeys;

    RArray<TInt> iSecondaryZoomInKeys;

    RArray<TInt> iSecondaryZoomOutKeys;

    // capture keys

    RArray<TInt> iPrimaryCameraCaptureKeys;

    RArray<TInt> iSecondaryCameraCaptureKeys;

    // AF key or half capture key press scan codes

    RArray<TInt> iPrimaryCameraAFKeys;    

    /// Remember current orientation, so we only redraw when necessary

    TCamOrientation iCamOrientation;

  TAknLayoutText iProcessingTextLayout;

  HBufC* iProcessingText;

      TAknLayoutText iBurstProcessingTextLayout;

      HBufC* iBurstProcessingText;

  //Backup child container to keep the background of viewfinder window always opaque

  CCamBackupContainer* iBackupContainer;

  };

#endif // CAMCONTAINERBASE_H

// End of File