istereo2
view libs/goatkit/boolanm.h @ 8:661bf09db398
- replaced Quartz timer with cross-platform timer code
- protected goatkit builtin theme function from being optimized out
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Thu, 24 Sep 2015 07:09:37 +0300 |
| parents | |
| children | 018f997dc646 |
line source
1 /*
2 GoatKit - a themable/animated widget toolkit for games
3 Copyright (C) 2014 John Tsiombikas <nuclear@member.fsf.org>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18 #ifndef BOOLANIM_H_
19 #define BOOLANIM_H_
21 class BoolAnim {
22 private:
23 mutable float value;
24 mutable float trans_dir; // transition direction (sign)
25 long trans_start; // transition start time
26 long trans_dur;
28 long (*get_msec)();
30 void update(long tm) const;
32 public:
33 BoolAnim(bool st = false);
35 void set_transition_duration(long dur);
36 void set_time_callback(long (*time_func)());
38 void set(bool st);
40 void change(bool st);
41 void change(bool st, long trans_start);
43 bool get_state() const;
44 bool get_state(long tm) const;
46 float get_value() const;
47 float get_value(long tm) const;
49 // transition direction (-1, 0, 1)
50 float get_dir() const;
51 float get_dir(long tm) const;
53 operator bool() const; // equivalent to get_state
54 operator float() const; // equivalent to get_value
55 };
57 #endif // BOOLANIM_H_