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https://github.com/DCC-EX/CommandStation-EX.git
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3327c043a1
Some state variables were static in LCDDisplay.write(). Moved to class members. Also, types of data items like row, column & character position changed to int8_t to save a few bytes of RAM.
73 lines
1.9 KiB
C++
73 lines
1.9 KiB
C++
/*
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* © 2021, Chris Harlow, Neil McKechnie. All rights reserved.
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*
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* This file is part of CommandStation-EX
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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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* It 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 CommandStation. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef LCDDisplay_h
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#define LCDDisplay_h
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#include <Arduino.h>
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// This class is created in LCDisplay_Implementation.h
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class LCDDisplay : public Print {
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public:
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static const int MAX_LCD_ROWS=8;
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static const int MAX_LCD_COLS=16;
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static const long LCD_SCROLL_TIME=3000; // 3 seconds
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static LCDDisplay* lcdDisplay;
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LCDDisplay();
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void interfake(int p1, int p2, int p3);
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// Internally handled functions
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static void loop();
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LCDDisplay* loop2(bool force);
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void setRow(byte line);
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void clear();
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virtual size_t write(uint8_t b);
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using Print::write;
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private:
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int nextFilledRow();
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// Relay functions to the live driver
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void clearNative();
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void displayNative();
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void setRowNative(byte line);
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void writeNative(char b);
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unsigned long lastScrollTime=0;
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int8_t hotRow=0;
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int8_t hotCol=0;
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int8_t topRow=0;
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int8_t lcdRows;
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int8_t lcdCols;
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int8_t slot=0;
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int8_t rowFirst=-1;
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int8_t rowNext=0;
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int8_t charIndex = 0;
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char buffer[MAX_LCD_COLS+1];
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char *bufferPointer = 0;
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bool done = false;
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void renderRow(byte row);
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char rowBuffer[MAX_LCD_ROWS][MAX_LCD_COLS+1];
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};
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#endif
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