// Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "Symbian Foundation License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.symbianfoundation.org/legal/sfl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// e32\include\e32cons.h

// 

//

#ifndef __E32CONS_H__

#define __E32CONS_H__

#include <e32base.h>

#include <e32keys.h>

//

/**

@publishedAll

@released

Defines a default console width that can be used when creating a console.

@see CConsoleBase::Create()

*/

const TInt KDefaultConsWidth=78;

/**

@publishedAll

@released

Defines a default console height that can be used when creating a console.

@see CConsoleBase::Create()

*/

const TInt KDefaultConsHeight=18;

/**

@publishedAll

@released

Implies a full size screen console when passed as the width and height

values when creating a console.

@see CConsoleBase::Create()

*/

const TInt KConsFullScreen=-1;

/**

@publishedAll

@released

Defines a set of text attributes used for consoles that support colour.

@see CColorConsoleBase::SetTextAttribute().

*/

enum TTextAttribute

	{

	ETextAttributeNormal,  /**< Defines the normal text attribute.   */

	ETextAttributeBold,    /**< Defines the bold text attribute.     */

	ETextAttributeInverse, /**< Defines the inverse text attribute.  */

	ETextAttributeHighlight/**< Defines the highlight text attribute.*/

	};

/**

@publishedAll

@released

A base class that defines a console interface.

*/

class CConsoleBase : public CBase

	{

public:

	IMPORT_C virtual ~CConsoleBase();

	IMPORT_C TKeyCode Getch();

	IMPORT_C void Printf(TRefByValue<const TDesC> aFmt,...);

	IMPORT_C void SetPos(TInt aX);

	IMPORT_C void SetPos(TInt aX,TInt aY);

	IMPORT_C TInt WhereX() const;

	IMPORT_C TInt WhereY() const;

// Pure virtual

    /**

    Creates a new console window.

    @param aTitle The title text for the console.

                  This should not be longer than 256 characters.

    @param aSize  The size of the console window.

    @return KErrNone, if successful; otherwise one of the other

                      system wide error codes.

    */

	virtual TInt Create(const TDesC &aTitle,TSize aSize) =0;

    /**

    Gets a keystroke from the console window, asynchronously.

    @param aStatus The request status object.

    */

	virtual void Read(TRequestStatus &aStatus) =0;

	/**

	Cancels any outstanding request to get a keystroke from the console window.

	*/

	virtual void ReadCancel() =0;

	/**

	Writes the content of the specified descriptor to the console window.

	@param aDes Descriptor containing the characters to be written to

	            the console window.

	*/

	virtual void Write(const TDesC &aDes) =0;

	/**

	Gets the current cursor position relative to the console window.

	@return  The current cursor position.

	*/

	virtual TPoint CursorPos() const =0;

	/**

    Puts the cursor at the absolute position in the window.

    @param aPoint The cursor position.

	*/

	virtual void SetCursorPosAbs(const TPoint &aPoint) =0;

	/**

	Puts the cursor at the specified position relative

	to the current cursor position.

	@param aPoint The cursor position.

	*/

	virtual void SetCursorPosRel(const TPoint &aPoint) =0;

	/**

	Sets the percentage height of the cursor.

    @param aPercentage The percentage height. This is a value from 0 to 100.

                       If 0 is specified, then no cursor is displayed.

	*/

	virtual void SetCursorHeight(TInt aPercentage) =0;

	/**

	Sets a new console title.

	@param aTitle The title text for the console.

                  This should not be longer than 256 characters.

	*/

	virtual void SetTitle(const TDesC &aTitle) =0;

	/**

	Clears the console.

	*/

	virtual void ClearScreen() =0;

	/**

	Clears the console from the current cursor position to

	the end of the line.

	*/

	virtual void ClearToEndOfLine() =0;

	/**

	Gets the size of the console.

	*/

	virtual TSize ScreenSize() const =0;

	/**

	Gets the current key code value.

	@return The key code value.

	*/

	virtual TKeyCode KeyCode() const =0;

	/**

	Gets the current key modifiers.

	@return The key modifiers.

	*/

	virtual TUint KeyModifiers() const =0;

protected:

	IMPORT_C CConsoleBase();

protected:

	IMPORT_C virtual TInt Extension_(TUint aExtensionId, TAny*& a0, TAny* a1);

	};

class CProxyConsole;

/**

@publishedAll

@released

Adds colour support to the basic console interface.

*/

class CColorConsoleBase : public CConsoleBase

	{

public:

    /**

    Sets the text attribute as defined by TTextAttribute.

    @param anAttribute The text attribute to be set.

    */

	virtual void SetTextAttribute(TTextAttribute /*anAttribute*/); 

protected:

	IMPORT_C virtual TInt Extension_(TUint aExtensionId, TAny*& a0, TAny* a1);

	friend class CProxyConsole;

	};

//

/**

@publishedAll

@released

*/

extern "C" {

IMPORT_C TAny *NewConsole();

}

#endif