801efa570c
This is needed for the upcoming decoder write as decode.cpp will track the Active Position from the internal data of x26triplets. If decode.cpp is rewritten again to track the Active Position independently of x26triplets this commit may be reverted, but then again tracking how the Active Position moves on both levels 1.5 and 2.5+ may be useful in terms of warning the user of differing results on different decoder levels.
125 lines
3.9 KiB
C++
125 lines
3.9 KiB
C++
/*
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* Copyright (C) 2020-2023 Gavin MacGregor
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*
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* This file is part of QTeletextMaker.
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*
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* QTeletextMaker 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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* QTeletextMaker 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 License
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* along with QTeletextMaker. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef X26TRIPLETS_H
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#define X26TRIPLETS_H
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#include <QList>
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class X26Triplet
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{
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public:
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// x26model.h has the Plain English descriptions of these errors
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enum X26TripletError { NoError, ActivePositionMovedUp, ActivePositionMovedLeft, InvokePointerInvalid, InvokeTypeMismatch, OriginModifierAlone };
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enum ObjectSource { InvalidObjectSource, LocalObject, POPObject, GPOPObject };
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X26Triplet() {}
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// X26Triplet(const X26Triplet &other);
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// X26Triplet &operator=(const X26Triplet &other);
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X26Triplet(int, int, int);
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int address() const { return m_address; }
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int mode() const { return m_mode; }
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int modeExt() const { return (m_address >= 40) ? m_mode : (m_mode | 0x20); }
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int data() const { return m_data; }
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int addressRow() const { return (m_address == 40) ? 24 :m_address-40; }
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int addressColumn() const { return (m_address); }
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bool isRowTriplet() const { return (m_address >= 40); }
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void setAddress(int);
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void setMode(int);
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void setData(int);
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void setAddressRow(int);
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void setAddressColumn(int);
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int objectSource() const { return (m_address & 0x18) >> 3; }
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int objectLocalDesignationCode() const { return (((m_address & 0x01) << 3) | (m_data >> 4)); }
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int objectLocalTripletNumber() const { return m_data & 0x0f; }
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int objectLocalIndex() const { return objectLocalDesignationCode() * 13 + objectLocalTripletNumber(); }
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void setObjectLocalDesignationCode(int);
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void setObjectLocalTripletNumber(int);
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void setObjectLocalIndex(int);
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int activePositionRow() const { return m_activePositionRow; }
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int activePositionColumn() const { return m_activePositionColumn; }
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int activePositionRow1p5() const { return m_activePositionRow1p5; }
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int activePositionColumn1p5() const { return m_activePositionColumn1p5; }
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X26TripletError error() const { return m_error; }
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bool reservedMode() const { return m_reservedMode; }
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bool reservedData() const { return m_reservedData; }
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friend class X26TripletList;
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private:
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// Only these variables are manipulated by the X26Triplet class
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int m_address, m_mode, m_data;
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// and the following are filled in by X26TripletList::updateInternalData()
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int m_activePositionRow = -1;
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int m_activePositionColumn = -1;
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int m_activePositionRow1p5 = -1;
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int m_activePositionColumn1p5 = -1;
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X26TripletError m_error = NoError;
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bool m_reservedMode = false;
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bool m_reservedData = false;
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};
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class X26TripletList
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{
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public:
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void append(const X26Triplet &);
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void insert(int, const X26Triplet &);
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void removeAt(int);
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void replace(int, const X26Triplet &);
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void removeLast() { m_list.removeLast(); }
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const X26Triplet &at(int i) const { return m_list.at(i); }
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bool isEmpty() const { return m_list.isEmpty(); }
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void reserve(int alloc) { m_list.reserve(alloc); }
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int size() const { return m_list.size(); }
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private:
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void updateInternalData();
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QList<X26Triplet> m_list;
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class ActivePosition
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{
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public:
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ActivePosition();
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void reset();
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// int row() const { return (m_row == -1) ? 0 : m_row; }
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// int column() const { return (m_column == -1) ? 0 : m_column; }
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int row() const { return m_row; }
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int column() const { return m_column; }
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bool isDeployed() const { return m_row != -1; }
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bool setRow(int);
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bool setColumn(int);
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// bool setRowAndColumn(int, int);
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private:
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int m_row, m_column;
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};
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};
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#endif
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