/*
 * Copyright 2010, Andrea Anzani. All rights reserved.
 * Distributed under the terms of the MIT License.
 */
#ifndef REFLOWING_TEXT_VIEW_H
#define REFLOWING_TEXT_VIEW_H

#include <app/AppDefs.h>
#include <app/Application.h>
#include <app/Roster.h>
#include <app/MessageFilter.h>
#include <app/Message.h>
#include <app/MessageRunner.h>
#include <app/Messenger.h>
#include <interface/StringView.h>
#include <interface/TextView.h>
#include <interface/Window.h>

#include "Queue.h"
#include <String.h>
//#include "BeShareNameSpace.h"


/* Subsclass of BTextView that automatically reflows the text when it is resized */
class ReflowingTextView : public BTextView
{
public:
	ReflowingTextView(BRect frame, const char* name, BRect textRect, uint32 resizeMask, uint32 flags = B_WILL_DRAW | B_PULSE_NEEDED);
	virtual ~ReflowingTextView();

	virtual void AttachedToWindow();

	virtual void FrameResized(float w, float h);

	virtual void MessageReceived(BMessage* msg);

	virtual void MouseMoved(BPoint where, uint32 code, const BMessage* msg);

	virtual void MouseDown(BPoint where);

	void FixTextRect();

	void Clear();

	void AddURLRegion(uint32 start, uint32 len, const BString& optHiddenURL);

	void SetCommandURLTarget(const BMessenger& target, const BMessage& queryMsg, const BMessage& privMsg);

private:
	void UpdateToolTip();

	/* A simple little data class that remembers stuff we need to remember about hyperlinks in the text view */
	class URLLink
	{
	public:
		URLLink() : _start(0), _len(0) {
			/* empty */
		}
		URLLink(uint32 start, uint32 len, const BString& optURL) : _start(start), _len(len), _url(optURL) {
			/* empty */
		}

		inline uint32 GetStart() const {
			return _start;
		}
		inline uint32 GetLength() const {
			return _len;
		}
		const BString& GetURL() const {
			return _url;
		}

	private:
		uint32 _start;
		uint32 _len;
		BString _url;
	};

	const URLLink* GetURLAt(BPoint pt) const;

	Queue<URLLink> _urls;
	BMessenger _commandTarget;
	BMessage _queryMessage;
	BMessage _privMessage;
	BMessageRunner* _showTipRunner;
	bool _runnerWillHide;  // If true, the runner is a hide-runner.
	bool _canShow;
	BWindow* _urlTip;
	BStringView* _urlStringView;
	int32 _currentLinkStart;
	BString _currentURLString;
};


#endif