41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
/*
|
|
* Copyright (c) 2019, Ploopy Corporation, a Canadian federal corporation.
|
|
*
|
|
* This is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public Licensefalse
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc.
|
|
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef SCROLLER_h
|
|
#define SCROLLER_h
|
|
|
|
class Scroller {
|
|
private:
|
|
enum State { HIHI, HILO, LOLO, LOHI };
|
|
State state;
|
|
bool lohif;
|
|
bool hilof;
|
|
int lowA;
|
|
int highA;
|
|
int lowB;
|
|
int highB;
|
|
int scrollThreshold;
|
|
int calculateThreshold(int, int);
|
|
public:
|
|
Scroller(void);
|
|
int scroll(int, int);
|
|
int getScrollThreshold(void);
|
|
};
|
|
|
|
#endif |