/*
 * This file is a part of Winix
 * and is not publicly distributed
 * 
 * Copyright (c) 2010, Tomasz Sowa
 * All rights reserved.
 * 
 */
 
#ifndef headerfile_winix_core_thumb
#define headerfile_winix_core_thumb

#include <string>
#include <list>
#include "basethread.h"
#include "textstream.h"
#include "db/db.h"
#include "core/item.h"
#include "core/config.h"


class System;



// Width given, height automagically selected to preserve aspect ratio.
#define WINIX_THUMB_MODE_1	1

// Height given, width automagically selected to preserve aspect ratio.
#define WINIX_THUMB_MODE_2	2

// Maximum values of height and width given, aspect ratio preserved.
#define WINIX_THUMB_MODE_3	3

// Minimum values of width and height given, aspect ratio preserved.
#define WINIX_THUMB_MODE_4	4

// Width and height emphatically given, original aspect ratio ignored.
#define WINIX_THUMB_MODE_5	5

// Change as per widthxheight but only if an image dimension exceeds a specified dimension.
#define WINIX_THUMB_MODE_6	6

// Change dimensions only if both image dimensions are less than specified dimensions.
#define WINIX_THUMB_MODE_7	7




class Thumb : public BaseThread
{
public:

	void CreateThumb(const Item & item, size_t cx, size_t cy, int aspect_mode);

	void SetDb(Db * pdb);
	void SetConfig(Config * pconfig);
	void SetSystem(System * psystem);

private:

	Db * db;
	Config * config;
	System * system;

	struct ThumbItem
	{
		Item file;
		size_t cx;
		size_t cy;
		int aspect_mode;
	};

	// queue of thumbnails to create
	typedef std::list<ThumbItem> ThumbTab;
	ThumbTab thumb_tab;
	ThumbItem item_temp;

	// only for second thread
	ThumbItem item_work;
	std::wstring src_path, dst_path;
	std::string tempa, string_tmp_patha;
	TextStream<std::string> command;
	TextStream<std::wstring> stream_tmp_path;
	DbItemQuery iq;

	virtual bool SignalReceived();
	virtual void Do();
	bool CreateCommand();
	void SaveTmpThumbnail();
	void CreateThumbnail();
	void SelectAspect();
	void EscapePath(const std::string & path);
};


#endif