/*

* 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:  Setup pane handler/controller class.

*/

#ifndef CAMMODESETUPPANEHANDLER_H

#define CAMMODESETUPPANEHANDLER_H

// INCLUDES

#include <E32Base.h>

#include <w32std.h>

#include "CamSetupPaneModel.h"

#include "CamLastCaptureHelper.h"

// FORWARD DECLARATIONS

class CCamAppController;

class CCoeControl;

class CCamSetupPaneItemArray;

class CCamSetupPane;

// CLASS DECLARATION

/**

* Mode setup pane controller class.

*/

class CCamModeSetupPaneHandler : public CBase,

                                 public MCamSetupPaneModel

	{

public:

    enum TEvent

        {

        EEventLeft,

        EEventRight,

        EEventSelect,

        EEventCancel,

        EEventEditUser

        };

public:

	/**

    * Two-phase class constructor.

    * @since 3.0

    * @param aController - A ref to a base app controller.

    * @return The new object.

    */

	static CCamModeSetupPaneHandler* NewLC( CCamAppController& aController );

	/**

    * Two-phase class constructor.

    * @since 3.0

    * @param aController - A ref to a base app controller.

    * @return The new object.

    */

	static CCamModeSetupPaneHandler* NewL( CCamAppController& aController );

	/**

    * C++ class destructor.   

    * @since 3.0

    */

	~CCamModeSetupPaneHandler();

public:

	/**

    * Creates and returns a new pane control.

    * @since 

    * @param aParent - The parent (container) control.

    * @param aRect - the rectangle this control is to occupy.

    * @return The new pane control.

    */

	CCoeControl* CreatePaneControlL( CCoeControl* aParent, const TRect& aRect );

	/**

    * Handles events forwarded from the pane control.

    * @since 3.0

    * @param aEvent - The event to handle

    */		

	void HandleEvent( TEvent aEvent );

	/**

	* Moves the current highlight item.

    * @since 3.0

    */

	void MoveToPreviousItem();

	/**

	* Moves the current highlight item.

    * @since 3.0

    */

	void MoveToNextItem();

	/**

	* Sets the context of the Setup Pane, based on the mode it is in

    * @since 3.0

    * @param aFirstCamera ETrue if first camera in use, else EFalse

    * @param aPhoto ETrue if in photo mode, else EFalse if in video

    * @param aUserSceneSetup ETrue if in user scene setup mode.

    */

	void SetMenuContextL( TBool aFirstCamera, TBool aPhoto, TBool aUserSceneSetup = EFalse );

	/**

	* Activates a particular sub-menu.

    * @since 3.0

    * @param aMenuItem The id of the submenu to activate.

    */

	void ActivateMenuItem( TInt aMenuItem );

	/**

	* Set whether SetupPane control is in foreground or not

    * @since 3.0

    * @param aForeground ETrue if in foreground, EFalse if in background

    */

	void SetForeground( TBool aForeground );

public:

	/**

    * From   MCamSetupPaneModel

    * @since 3.0 

    * @return The number of items in the model.

    */

	TInt NumberOfItems() const;

	/**

    * From   MCamSetupPaneModel

    * @since 3.0

    * @return The title text in the model.

    */

	const TDesC& TitleText() const;

	/**

    * From   MCamSetupPaneModel

    * @since 3.0

    * @return The descriptor text in the model.

    */

	const TDesC& DescriptorText() const;

	/**

    * From   MCamSetupPaneModel

    * @since 3.0

    * @param aItemIndex - The model item index to get an icon for.

    * @return The corresponding icon.

    */

	CGulIcon& Icon( TInt aItemIndex );

	/**

    * From   MCamSetupPaneModel

    * @since 3.0

    * @return The index of the highlighted model item.

    */

	TInt HighlightedItemIndex() const;

	/**

    * From   MCamSetupPaneModel

    * @since 3.0

    * @return The id of the highlighted model item.

    */

	TInt HighlightedItemId() const;

	/**

    * From   MCamSetupPaneModel

    * @since 3.0 

    * @param aItemIndex Index of the SetupPane menu item

    * @return ETrue if this item is the LastCaptured thumbnail, else EFalse

    */

	TBool IconIsThumbnail( TInt aItemIndex ) const;

	/**

    * From   MCamSetupPaneModel

    * @since 3.0 

    * @param aSmall Whether requesting the small (ETrue) or large (EFalse) thumbnail icon

    * @return The number of items in the model.

    */

    CGulIcon& Thumbnail( TBool aSmall );

    /**

    * From   MCamSetupPaneModel

    * @since 3.0

    */

    void Refresh();

private:

	/**

    * C++ constructor.

    * @since 3.0

    * @param aController - A ref to a base app controller object.

    */

	CCamModeSetupPaneHandler( CCamAppController& aController );

	/**

	* Carriers out two-phase class construction.

    * @since 3.0

    */

	void ConstructL();

	/**

    * Handles a pane highlighted item change.

    * @since 3.0

    */

	void HandlePaneItemChanged();

	/**

    * Handles a pane highlighted item change.

    * @since 3.0

    */

	void HandlePaneItemLevelItemChanged();

	/**

    * Handles a pane highlighted menu item selection.

    * @since 3.0 

    * @param aValueToBeHighlighted The value of the selected pane to be highlighted.

    */

	void HandlePaneMenuLevelSelection( TInt aValueToBeHighlighted );

	/**

    * Handles user selection of the "LastCapture" thumbnail where available

    * @since 3.0 

    */	

	void HandleLastCaptureSelection();	

	/**

    * Handles a pane highlighted item-level selection.

    * @since 3.0

    */

	void HandlePaneItemLevelSelection();

	/**

    * Handles a pane highlighted item-level selection.

    * @since 3.0

    */

	void HandlePaneCancel();

	/**

	* Updates the setup pane based on the specified resource

    * @since 3.0

    * @param aResource The resource specifying the new pane contents

    */    

	void UpdateFromResourceL( TInt aResource );

	/**

	* Deletes the contents of the array, and resets internal state

    * @since 3.0

    */        

	void ResetArray();

	/**

	* Switches to the User Scene Setup view.

    * @since 3.0

    */        

	void SwitchToUserSceneView();

private:

	// Setup pane modes - top ('menu') level, or bottom ('item') level.

	enum TSetupPaneLevel

		{

		EMenuLevel,

		EItemLevel

		};

	// Various definitions:

	enum

		{

		KSettingsArrayCount = 6,	// Number of settings arrays.

		KItemArrayGranularity = 4,	// Granularity of item arrays.

		KMaxTitleCharLength = 32	// Max character length of title text.

		};

private:

	// The app controller object (gives access to settings).

	CCamAppController& iController;

	// The current level that the pane is at (menu or item level).

	TSetupPaneLevel iPaneLevel;

	// The zero-based index of the currently highlighted item.

	TInt iHighlightedItemIndex;

	// Zero-based index of the current settings array (=the selected menu item).

	TInt iCurrentSettingsArrayIndex;

	// IDs of the pane menu items (+ one dynamic item).

	TInt iMenuItemIds[KSettingsArrayCount + 1];

	// Title text for each menu item (+ one dynamic item)

	TBuf<KMaxTitleCharLength> iMenuTitles[KSettingsArrayCount + 1];

	// 'Item-level' settings item arrays.

	CCamSetupPaneItemArray* iSettingItems[KSettingsArrayCount];

	// Pointer to a pane control object (not owned).

	CCamSetupPane* iPaneControl;

	// Pointer to the owning object (not owned)

	CCoeControl* iParent;

    // Number of settings in the iSettingItems array

	TInt iNoOfSettingsItems;

	// Specifies whether the user scene setup is currently being edited.

	TBool iUserSceneSetupMode;

	// Helper class to get the last-captured thumbnails where available.

	CCamLastCaptureHelper* iLastCaptureHelper;

    // The current mode.  ETrue if Photo mode, EFalse if video mode

	TBool iPhotoMode;

    // Whether the SetupPane is currently in foreground or not.

	TBool iForeground;		

	// Title to use for the LastCapture selection

	HBufC16* iLastCapTitle;

	// Filename of last capture

	TFileName iLastCapName;

	};

#endif