/*
 * Copyright (c) 2006, Haiku, Inc.
 * Distributed under the terms of the MIT license.
 *
 * Author:
 *		DarkWyrm <darkwyrm@earthlink.net>
 */
#ifndef AUTOTEXT_H
#define AUTOTEXT_H

#include <TextControl.h>
#include <MessageFilter.h>
#include <Messenger.h>

class AutoTextControlFilter;

enum {
	M_PREVIOUS_FIELD='mprf',
	M_NEXT_FIELD='mnxf',
	M_ENTER_NAVIGATION='ennv'
};

class AutoTextControl : public BTextControl
{
public:
					AutoTextControl(const BRect &frame, const char *name,
									const char *label, const char *text,
									BMessage *msg,
									uint32 resize = B_FOLLOW_LEFT | B_FOLLOW_TOP,
									uint32 flags = B_WILL_DRAW | B_NAVIGABLE);
	virtual 		~AutoTextControl(void);
	virtual	void 	AttachedToWindow(void);
	virtual	void 	DetachedFromWindow(void);
			void	SetFilter(AutoTextControlFilter *filter);
	AutoTextControlFilter *	GetFilter(void) { return fFilter; }
	
			void	SetCharacterLimit(const uint32 &limit);
			uint32	GetCharacterLimit(const uint32 &limit);
	
			void	SetEscapeCancel(const bool &value) { fEscapeCancel = value; }
			bool	IsEscapeCancel(void) const { return fEscapeCancel; }
private:
			friend class AutoTextControlFilter;
			
			AutoTextControlFilter	*fFilter;
			bool					fEscapeCancel;
			uint32					fCharLimit;
};

class AutoTextControlFilter : public BMessageFilter
{
public:
							AutoTextControlFilter(AutoTextControl *checkview);
							~AutoTextControlFilter(void);
	virtual	filter_result	Filter(BMessage *msg, BHandler **target);
	virtual	filter_result	KeyFilter(const int32 &key, const int32 &mod);
	
			AutoTextControl *	TextControl(void) const { return fBox; }
	
			void			SetMessenger(BMessenger *msgr);
			BMessenger *	GetMessenger(void) const { return fMessenger; }
			void 			SendMessage(BMessage *msg);
			BMessage *		GetCurrentMessage(void) { return fCurrentMessage; }

protected:
			bool 			IsEscapeCancel(void) const { return fBox->IsEscapeCancel(); }
	
private:
			void 			HandleNoNumLock(const int32 &code, int32 &rawchar, 
											BMessage *msg);
	
			AutoTextControl 	*fBox;
			BMessenger 			*fMessenger;
			BMessage 			*fCurrentMessage;
};

#endif