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

 * 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

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

// SwtHyperLink.h

#ifndef SWTHYPERLINK_H

#define SWTHYPERLINK_H

#include "eswtmobileextensions.h"

#include "swtcontrolbase.h"

class MTouchFeedback;

/**

 *  The class encapsulating the S60 native implementation of HyperLink.

 *

 *  It is a custom control that is a focusable text-only label which,

 *  when being selected, launches an external handler application according

 *  to the format construction parameter.

 *

 *  @lib eswt.dll

 */

NONSHARABLE_CLASS(CSwtHyperLink)

        : public CAknControl

        , public ASwtControlBase

        , public MSwtHyperLink

{

// New functions

public:

    /**

     * The constructor.  Note that format parameter is passed in by calling SetFormat

     * right after the construction.

     * @param aDisplay The Display object

     * @param aPeer    The Java peer handle

     * @param aParent  The parent Composite

     * @param aStyle   Styles passed to the Java constructor (not the format)

     * @return         New CSwtHyperLink instance

     */

    static CSwtHyperLink* NewL(MSwtDisplay& aDisplay,

    TSwtPeer aPeer,

    MSwtComposite& aParent,

    TInt aStyle);

    /**

     * The destructor

     */

    virtual ~CSwtHyperLink();

private:

    CSwtHyperLink(MSwtDisplay& aDisplay, TSwtPeer aPeer, MSwtComposite& aParent, TInt aStyle);

    void ConstructL();

    void SwtHandleResourceChangeL(TInt aType);

    void DrawText(CWindowGc& aGc,

                  const CFont* aFont,

                  const TDesC& aText,

                  const TRect& aTextRect,

                  const CGraphicsContext::TTextAlign& aAlignment) const;

    void UpdateDefaultFontL();

    void LaunchHandler();

    TPtrC Scheme();

    TRgb LinkColor() const;

    TRgb LinkBgColor() const;

    TRgb PressedLinkColor() const;

// From base class CCoeControl

public:

    TKeyResponse OfferKeyEventL(const TKeyEvent& aKeyEvent,TEventCode aType);

    void HandleResourceChange(TInt aType);

protected:

    TTypeUid::Ptr   MopSupplyObject(TTypeUid aId);

    void SizeChanged();

    void PositionChanged();

    void FocusChanged(TDrawNow aDrawNow);

private:

    void Draw(const TRect& aRect) const;

// From base class MSwtControl

protected:

    CCoeControl&       CoeControl();

    const CCoeControl& CoeControl() const;

    void               ProcessKeyEventL(const TKeyEvent& aKeyEvent, TEventCode aType);

    void               HandlePointerEventL(const TPointerEvent& aPointerEvent);

public:

    void               SetForegroundL(const MSwtColor* aColor);

    TSize              ComputeSizeL(TInt aWHint, TInt aHHint);

    TInt               PressBackgroundPolicy() const;

// From base class ASwtControlBase

protected:

    const MSwtFont& DefaultFont() const;

    HBufC* MSKLabelL() const;

    TBool IsKeyUsed(TUint aKeyCode) const;

// From base class MSwtHyperLink

public:

    MSwtControl*    Control();

    void            SetTextL(const TDesC& aText);

    const TDesC*    GetText();

    void            SetFormat(TInt aFormat);

// Data

private:

    /**

     * The hyperlink text set by HyperLink.setText in the Java API.

     * This is returned from getText.

     * Own.

     */

    RBuf iOriginalText;

    /**

     * The hyperlink text that has been formatted.

     * Own.

     */

    RBuf iFormattedText;

    /**

     * The default font.

     * Own.

     */

    MSwtFont* iDefaultFont;

    /**

     * Custom foreground color used by the non pressed link.

     * Not own.

     */

    const MSwtColor* iCustomFg;

    /**

     * The format of the hyperlink. Textual formatting done and the handler

     * to launch depends on this.

     */

    MSwtHyperLink::TFormat iFormat;

    /**

     * Feedback instance.

     * Not own.

     */

    MTouchFeedback* iFeedback;

};

#endif // SWTHYPERLINK_H