webcoreformcontrols.h

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/*
 * Copyright (c) 2005 Nokia Corporation, Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the Nokia Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef __WEBCOREFORMCONTROLS__
#define __WEBCOREFORMCONTROLS__

// INCLUDES
#include <e32base.h>
#include <e32std.h>
#include <gdi.h>

#include "WebCoreWidget.h"
#include "WebCoreFormEvent.h"

// CONSTANTS

// MACROS

// DATA TYPES

typedef enum {
    EWebCoreScrollBarHorizontal,
    EWebCoreScrollBarVertical
} TWebCoreScrollBarOrientation;

typedef enum {
    EWebCoreScrollBarNone,
    EWebCoreScrollBarDecrementLine,
    EWebCoreScrollBarIncrementLine,
    EWebCoreScrollBarDecrementPage,
    EWebCoreScrollBarIncrementPage,
    EWebCoreScrollBarKnob
} TWebCoreScrollBarPart;

// FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

class MWebCoreFormEventHandler;
// CLASS DECLARATION



/**
*  interface , implemented by input skin
*  @lib webcore.lib
*  @since 3.0
*/
class MWebCoreInputWidget: public MWebCoreWidget
    {
    public:
        // input/textare/password related methods
        virtual void SetText(TPtrC aData)= 0;

        virtual TPtrC Text()= 0;

        virtual void SetMaxLength(TInt aLength)= 0;

        virtual void SetHeight(TInt aHeight)= 0;

        virtual TInt MaxLength()= 0;

        virtual TInt Height() const = 0;

        virtual TBool Edited()= 0;

        virtual void SetEdited(TBool aEdited)= 0;

        virtual TSize SizeForCharacterWidth(TInt aNumCharacters) const= 0;

        virtual void SetSize(TInt aSize)= 0;

        virtual void SetEventHandler(MWebCoreFormEventHandler* aInputEventHandler) = 0;

        virtual TBool IsActive() const = 0;

        virtual void DeActivate(TBool aAcceptChanges) = 0;

        virtual TBool IsReadOnly() = 0;

        virtual void SetReadOnly(TBool aReadOnly) = 0;

        virtual TBool IsDisabled() = 0;

        virtual void SetDisabled(TBool aDisabled) = 0;

        virtual void SetFont (CFont* aFont) = 0;

};

/**
*  interface , implemented by file input  skin
*  @lib webcore.lib
*  @since 3.0
*/
class MWebCoreFileInputWidget: public MWebCoreWidget
    {
    public:

        virtual void SetFileName(const TPtrC aData)= 0;

        virtual TPtrC FileName()= 0;

        virtual void SetEventHandler(MWebCoreFormEventHandler* aInputEventHandler) = 0;

		virtual TSize SizeForCharacterWidth(TInt aNumCharacters) const= 0;

		virtual void SetFont (CFont* aFont) = 0;
	};

/**
*  interface , implemented by button skin
*  @lib webcore.lib
*  @since 3.0
*/
class MWebCoreButtonWidget: public MWebCoreWidget
    {
    public:
        virtual void SetText(TPtrC aData)= 0;

        virtual TPtrC Text()= 0;

        virtual TSize SizeForCharacterWidth(TInt aNumCharacters) const= 0;

        virtual void SetEventHandler(MWebCoreFormEventHandler* aActivateEventHandler) = 0;

        virtual void SetFont (CFont* aFont) = 0;
    };


/**
*  interface , implemented by checkbox skin
*  @lib webcore.lib
*  @since 3.0
*/
class MWebCoreCheckBoxWidget: public MWebCoreWidget
    {
    public:
        virtual void SetChecked(TBool aIsChecked)= 0;

        virtual TBool IsChecked()= 0;

        virtual void SetEventHandler(MWebCoreFormEventHandler* aActivateEventHandler) = 0;
    };

/**
*  interface , implemented by select  skin
*  @lib webcore.lib
*  @since 3.0
*/
class MWebCoreSelectWidget: public MWebCoreWidget
    {
    public:
        virtual void AppendItem(TPtrC aItem, TBool aIsLabel, TBool aIsDisabled) = 0;

        virtual void DoneAppendingItems() = 0;

        virtual void SetSelected(TInt aIndex, TBool aSelectIt) = 0;

        virtual void DoneSelectingItems() = 0;

        virtual TBool IsSelected(TInt aIndex) const  = 0;

        virtual void SetSelectionMode(TBool aMultiple) = 0;

        virtual void Clear() = 0;

        virtual void ClearSelection() = 0;

        // good only for combo , for listbox the function call returns the
        // first selected item
        virtual TInt SelectedIndex() const = 0;

        virtual TSize SizeForNumberOfLines(TInt aLines) const = 0;

        virtual TSize SizeForCharacterWidth(TInt aNumCharacters) const = 0;

        virtual void SetEventHandler(MWebCoreFormEventHandler* aInputEventHandler)  = 0;

        virtual void SetFont (CFont* aFont) = 0;
    };

/**
*  interface, used by widget classes
*  @lib webcore.lib
*  @since 3.1
*/
class MWebCoreScrollBarWidget: public MWebCoreWidget
  {
  public:

  virtual TWebCoreScrollBarOrientation Orientation() const = 0;
  virtual void SetOrientation(TWebCoreScrollBarOrientation aOrientation) = 0;
  virtual TReal Value() const = 0;
  virtual void SetValue(TReal aValue) = 0;
  virtual TReal KnobProportion() const = 0;
  virtual void SetKnobProportion(TReal aValue) = 0;
  virtual TWebCoreScrollBarPart ClickAtPoint(const TPoint& aPoint) = 0;
  };

#endif  // __WEBCOREFORMCONTROLS__

// End of File