mirror of
https://github.com/DCC-EX/CommandStation-EX.git
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43c7baf8f5
Eliminate spurious blanking of screen in mode 1, duplicated lines of text in mode 2, and non-display of more than the first screen-full of lines in mode 0.
78 lines
2.2 KiB
C++
78 lines
2.2 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 Display_h
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#define Display_h
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#include <Arduino.h>
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#include "defines.h"
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#include "DisplayInterface.h"
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// Allow maximum message length to be overridden from config.h
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#if !defined(MAX_MSG_SIZE)
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#define MAX_MSG_SIZE 20
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#endif
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// Set default scroll mode (overridable in config.h)
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#if !defined(SCROLLMODE)
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#define SCROLLMODE 1
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#endif
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// This class is created in Display_Implementation.h
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class Display : public DisplayInterface {
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public:
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Display(DisplayDevice *deviceDriver);
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static const int MAX_CHARACTER_ROWS = 8;
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static const int MAX_CHARACTER_COLS = MAX_MSG_SIZE;
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static const long DISPLAY_SCROLL_TIME = 3000; // 3 seconds
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private:
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DisplayDevice *_deviceDriver;
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unsigned long lastScrollTime = 0;
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uint8_t hotRow = 0;
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uint8_t hotCol = 0;
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uint8_t slot = 0;
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uint8_t rowFirst = 0;
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uint8_t rowCurrent = 0;
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uint8_t charIndex = 0;
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char buffer[MAX_CHARACTER_COLS + 1];
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char* bufferPointer = 0;
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bool noMoreRowsToDisplay = false;
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uint16_t numScreenRows;
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uint16_t numScreenColumns = MAX_CHARACTER_COLS;
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char rowBuffer[MAX_CHARACTER_ROWS][MAX_CHARACTER_COLS+1];
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public:
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void begin() override;
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void _clear() override;
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void _setRow(uint8_t line) override;
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size_t _write(uint8_t b) override;
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void _refresh() override;
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void _displayLoop() override;
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Display *loop2(bool force);
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bool findNonBlankRow();
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bool isCurrentRowBlank();
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void moveToNextRow();
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uint8_t countNonBlankRows();
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};
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#endif
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