//
// ColorHandler.hh for pekwm
// Copyright (C) 2004 Claes Nasten <pekdon{@}pekdon{.}net>
//
// This program is licensed under the GNU GPL.
// See the LICENSE file for more information.
//

#include "../config.h"

#ifndef _COLOR_HANDLER_HH_
#define _COLOR_HANDLER_HH_

#include "pekwm.hh"

#include <list>
#include <string>

class ColorHandler {
public:
	class Entry {
	public:
		Entry(const std::string &name) : _name(name), _ref(0) { }
		~Entry(void) { }

		inline XColor *getColor(void) { return &_xc; }

		inline uint getRef(void) const { return _ref; }
		inline void incRef(void) { _ref++; }
		inline void decRef(void) { if (_ref > 0) {_ref--; } }

		inline bool operator==(const std::string &name) {
			return (strcasecmp(_name.c_str(), name.c_str()) == 0);
		}

	private:
		std::string _name;
		XColor _xc;

		uint _ref;
	};

	ColorHandler(Display *dpy);
	~ColorHandler(void);

	static ColorHandler *instance(void) { return _instance; }

	inline bool isFreeOnReturn(void) const { return _free_on_return; }
	inline void setFreeOnReturn(bool free) { _free_on_return = free; }

	XColor *getColor(const std::string &color);
	void returnColor(XColor *xc);

	void freeColors(bool all);

private:
	Display *_dpy;

	XColor _xc_default; // when allocating fails
	std::list<ColorHandler::Entry*> _color_list;
	bool _free_on_return; // used when returning many colours

	static ColorHandler *_instance;
};

#endif // _COLOR_HANDLER_HH_