1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/libs/goatkit/boolanm.h	Wed Sep 23 05:44:58 2015 +0300
     1.3 @@ -0,0 +1,57 @@
     1.4 +/*
     1.5 +GoatKit - a themable/animated widget toolkit for games
     1.6 +Copyright (C) 2014  John Tsiombikas <nuclear@member.fsf.org>
     1.7 +
     1.8 +This program is free software: you can redistribute it and/or modify
     1.9 +it under the terms of the GNU Lesser General Public License as published by
    1.10 +the Free Software Foundation, either version 3 of the License, or
    1.11 +(at your option) any later version.
    1.12 +
    1.13 +This program is distributed in the hope that it will be useful,
    1.14 +but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.15 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.16 +GNU Lesser General Public License for more details.
    1.17 +
    1.18 +You should have received a copy of the GNU Lesser General Public License
    1.19 +along with this program.  If not, see <http://www.gnu.org/licenses/>.
    1.20 +*/
    1.21 +#ifndef BOOLANIM_H_
    1.22 +#define BOOLANIM_H_
    1.23 +
    1.24 +class BoolAnim {
    1.25 +private:
    1.26 +	mutable float value;
    1.27 +	mutable float trans_dir;	// transition direction (sign)
    1.28 +	long trans_start;	// transition start time
    1.29 +	long trans_dur;
    1.30 +
    1.31 +	long (*get_msec)();
    1.32 +
    1.33 +	void update(long tm) const;
    1.34 +
    1.35 +public:
    1.36 +	BoolAnim(bool st = false);
    1.37 +
    1.38 +	void set_transition_duration(long dur);
    1.39 +	void set_time_callback(long (*time_func)());
    1.40 +
    1.41 +	void set(bool st);
    1.42 +
    1.43 +	void change(bool st);
    1.44 +	void change(bool st, long trans_start);
    1.45 +
    1.46 +	bool get_state() const;
    1.47 +	bool get_state(long tm) const;
    1.48 +
    1.49 +	float get_value() const;
    1.50 +	float get_value(long tm) const;
    1.51 +
    1.52 +	// transition direction (-1, 0, 1)
    1.53 +	float get_dir() const;
    1.54 +	float get_dir(long tm) const;
    1.55 +
    1.56 +	operator bool() const;	// equivalent to get_state
    1.57 +	operator float() const;	// equivalent to get_value
    1.58 +};
    1.59 +
    1.60 +#endif	// BOOLANIM_H_