/*******************************************************************************

 * Copyright (c) 2005, 2010 Nokia Corporation and/or its subsidiary(-ies).

 * All rights reserved. This program and the accompanying materials

 * are made available under the terms of the Eclipse Public License v1.0

 * which accompanies this distribution, and is available at

 * http://www.eclipse.org/legal/epl-v10.html

 *

 * Contributors:

 *     Nokia Corporation - S60 implementation

 *******************************************************************************/

#ifndef SWTTABLELISTBOXVIEW_H

#define SWTTABLELISTBOXVIEW_H

#include <eiklbv.h>

class CSwtTable;

/**

 * The view implementation for CSwtTableListBox.

 * @lib eswt.dll

 */

NONSHARABLE_CLASS(CSwtTableListBoxView)

        : public CListBoxView

{

public:

    /**

     * The constructor.

     * @param aTable The parent table

     */

    CSwtTableListBoxView(CSwtTable &aTable);

    /**

     * Check if it is possible to scroll the view further left.

     * @return True if scrolling is possible.

     */

    TBool CanScrollLeft();

    /**

     * Check if it is possible to scroll the view further right.

     * @return True if scrolling is possible.

     */

    TBool CanScrollRight();

    /**

     * Sets the horizontal scrolling position to a valid position after

     * a change in data or view widths that might have invalidated the position.

     * Might not do anything if the position is already valid.

     */

    void ValidateHScrollOffset();

    /**

     * Sets the horizontal scrolling position all the way to the leadging edge of the table.

     * I.e. the edge with the first column.

     */

    void HScrollToLeadingEdge();

    /**

     * Scrolls the view horizontally to bring the specified column into the view.

     * @param aColumnIndex The column index to scroll to.

     */

    void ScrollToMakeColumnVisible(const TInt& aColumnIndex);

    /**

     * Sets the horizontal scroll offset in pixels.

     *

     * @param aHorizontalOffset New value for the horizontal scroll offset, in

     *        pixels.

     */

    void SetHScrollOffset(const TInt& aHorizontalOffset);

    /**

     * These just forward the call to the corresponding functions in the CListBoxView.

     */

    void DoSetFlags(TInt aMask);

    void DoClearFlags(TInt aMask);

// From CListBoxView

    void HScroll(TInt aHScrollAmount);

    void CalcDataWidth();

    void Draw(const TRect* aClipRect = NULL) const;

private:

    /**

     * Scrolls the view horizontally to the one of the specified offsets

     * that is closer to the current scrolling position.

     * @param aHScrollOffset1 candidate offset 1

     * @param aHScrollOffset2 candidate offset 1

     */

    void HScrollMin(const TInt& aHScrollOffset1, const TInt& aHScrollOffset2);

private: // data

    /**

     * The parent table.

     */

    CSwtTable& iTable;

};

#endif // SWTTABLELISTBOXVIEW_H