68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
/*
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* Copyright (c) 2019, Ploopy Corporation, a Canadian federal corporation.
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public Licensefalse
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* along with this program; if not, write to the Free Software
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* Foundation, Inc.
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef SCROLLER_AR_SIZE
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#define SCROLLER_AR_SIZE 31
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#endif
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#ifndef SCROLLER_h
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#define SCROLLER_h
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class Scroller {
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private:
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const int THRESH_RANGE_LIM = 10;
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enum State { HIHI, HILO, LOLO, LOHI };
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State state;
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bool lohif;
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bool hilof;
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int lowA;
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int highA;
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bool cLowA;
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bool cHighA;
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int lowIndexA;
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int highIndexA;
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bool lowOverflowA;
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bool highOverflowA;
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int lowB;
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int highB;
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bool cLowB;
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bool cHighB;
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int lowIndexB;
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int highIndexB;
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bool lowOverflowB;
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bool highOverflowB;
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int scrollThresholdA;
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int scrollThresholdB;
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int arLowA[SCROLLER_AR_SIZE];
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int arHighA[SCROLLER_AR_SIZE];
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int arLowB[SCROLLER_AR_SIZE];
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int arHighB[SCROLLER_AR_SIZE];
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int calculateThresholdA(int);
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int calculateThresholdB(int);
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int calculateThreshold(int, int&, int&, bool&, bool&, int*, int*, int&, int&, bool&, bool&);
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int thresholdEquation(int, int);
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void incrementIndex(int&, bool&);
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public:
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Scroller(void);
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int scroll(int, int);
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void debug(void);
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};
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#endif
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