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// Copyright (C) 2002-2012 Nikolaus Gebhardt, Modified by Mustapha Tachouct
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h

#ifndef GUIEDITBOXWITHSCROLLBAR_HEADER
#define GUIEDITBOXWITHSCROLLBAR_HEADER

#include "IGUIEditBox.h"
#include "IOSOperator.h"
#include "IGUIScrollBar.h"
#include <vector>

using namespace irr;
using namespace irr::gui;

class GUIEditBoxWithScrollBar : public IGUIEditBox
{
public:

	//! constructor
	GUIEditBoxWithScrollBar(const wchar_t* text, bool border, IGUIEnvironment* environment,
		IGUIElement* parent, s32 id, const core::rect<s32>& rectangle,
		bool writable = true, bool has_vscrollbar = true);

	//! destructor
	virtual ~GUIEditBoxWithScrollBar();

	//! Sets another skin independent font.
	virtual void setOverrideFont(IGUIFont* font = 0);

	//! Gets the override font (if any)
	/** \return The override font (may be 0) */
	virtual IGUIFont* getOverrideFont() const;

	//! Get the font which is used right now for drawing
	/** Currently this is the override font when one is set and the
	font of the active skin otherwise */
	virtual IGUIFont* getActiveFont() const;

	//! Sets another color for the text.
	virtual void setOverrideColor(video::SColor color);

	//! Gets the override color
	virtual video::SColor getOverrideColor() const;

	//! Sets if the text should use the overide color or the
	//! color in the gui skin.
	virtual void enableOverrideColor(bool enable);

	//! Checks if an override color is enabled
	/** \return true if the override color is enabled, false otherwise */
	virtual bool isOverrideColorEnabled(void) const;

	//! Sets whether to draw the background
	virtual void setDrawBackground(bool draw);

	//! Turns the border on or off
	virtual void setDrawBorder(bool border);

	//! Enables or disables word wrap for using the edit box as multiline text editor.
	virtual void setWordWrap(bool enable);

	//! Checks if word wrap is enabled
	//! \return true if word wrap is enabled, false otherwise
	virtual bool isWordWrapEnabled() const;

	//! Enables or disables newlines.
	/** \param enable: If set to true, the EGET_EDITBOX_ENTER event will not be fired,
	instead a newline character will be inserted. */
	virtual void setMultiLine(bool enable);

	//! Checks if multi line editing is enabled
	//! \return true if mult-line is enabled, false otherwise
	virtual bool isMultiLineEnabled() const;

	//! Enables or disables automatic scrolling with cursor position
	//! \param enable: If set to true, the text will move around with the cursor position
	virtual void setAutoScroll(bool enable);

	//! Checks to see if automatic scrolling is enabled
	//! \return true if automatic scrolling is enabled, false if not
	virtual bool isAutoScrollEnabled() const;

	//! Gets the size area of the text in the edit box
	//! \return Returns the size in pixels of the text
	virtual core::dimension2du getTextDimension();

	//! Sets text justification
	virtual void setTextAlignment(EGUI_ALIGNMENT horizontal, EGUI_ALIGNMENT vertical);

	//! called if an event happened.
	virtual bool OnEvent(const SEvent& event);

	//! draws the element and its children
	virtual void draw();

	//! Sets the new caption of this element.
	virtual void setText(const wchar_t* text);

	//! Sets the maximum amount of characters which may be entered in the box.
	//! \param max: Maximum amount of characters. If 0, the character amount is
	//! infinity.
	virtual void setMax(u32 max);

	//! Returns maximum amount of characters, previously set by setMax();
	virtual u32 getMax() const;

	//! Sets whether the edit box is a password box. Setting this to true will
	/** disable MultiLine, WordWrap and the ability to copy with ctrl+c or ctrl+x
	\param passwordBox: true to enable password, false to disable
	\param passwordChar: the character that is displayed instead of letters */
	virtual void setPasswordBox(bool passwordBox, wchar_t passwordChar = L'*');

	//! Returns true if the edit box is currently a password box.
	virtual bool isPasswordBox() const;

	//! Updates the absolute position, splits text if required
	virtual void updateAbsolutePosition();
	
	virtual void setWritable(bool writable);

	//! Change the background color
	virtual void setBackgroundColor(const video::SColor &bg_color);

	//! Writes attributes of the element.
	virtual void serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const;

	//! Reads attributes of the element
	virtual void deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options);

	virtual bool isDrawBackgroundEnabled() const;