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https://github.com/DCC-EX/CommandStation-EX.git
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0e3046e24f
* LCD/OLED Implementation * OLED basic working 32 *132 display * LCD/OLED startup ok * Simplified setup * Missing freememory include * Format Width Allow right padding number width in String format * Intermediate scroll * Compile issues with no LCD * Clean buffers at startup * Support for format left padded numbers * Smarter Scrolling And forced start messages Free Ram in slot 2 * LCD tidying Neater setup block in .ino. Dropped unnecessary code No-scroll if display not full * Missing %E format support This is used in WifiInterface checkForOK * Wifi correction and memory guard
80 lines
2.3 KiB
C++
80 lines
2.3 KiB
C++
/*
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* © 2020, Chris Harlow. 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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// CAUTION: the device dependent parts of this class are created in the .ini using LCD_Implementation.h
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#include "LCDDisplay.h"
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void LCDDisplay::clear() {
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clearNative();
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for (byte row=0;row<MAX_LCD_ROWS; row++) rowBuffer[row][0]='\0';
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topRow=-1; // loop2 will fill from row 0
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}
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void LCDDisplay::setRow(byte line) {
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hotRow=line;
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hotCol=0;
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}
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size_t LCDDisplay::write(uint8_t b) {
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if (hotRow>=MAX_LCD_ROWS || hotCol>=MAX_LCD_COLS) return -1;
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rowBuffer[hotRow][hotCol]=b;
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hotCol++;
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rowBuffer[hotRow][hotCol]=0;
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return 1;
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}
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void LCDDisplay::loop() {
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if (!lcdDisplay) return;
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lcdDisplay->loop2(false);
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}
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LCDDisplay* LCDDisplay::loop2(bool force) {
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if ((!force) && (millis() - lastScrollTime)< LCD_SCROLL_TIME) return NULL;
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lastScrollTime=millis();
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clearNative();
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int rowFirst=nextFilledRow();
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if (rowFirst<0)return NULL; // No filled rows
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setRowNative(0);
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writeNative(rowBuffer[rowFirst]);
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for (int slot=1;slot<lcdRows;slot++) {
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int rowNext=nextFilledRow();
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if (rowNext==rowFirst){
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// we have wrapped around and not filled the screen
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topRow=-1; // start again at first row next time.
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break;
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}
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setRowNative(slot);
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writeNative(rowBuffer[rowNext]);
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}
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displayNative();
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return NULL;
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}
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int LCDDisplay::nextFilledRow() {
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for (int rx=1;rx<=MAX_LCD_ROWS;rx++) {
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topRow++;
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topRow %= MAX_LCD_ROWS;
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if (rowBuffer[topRow][0]) return topRow;
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}
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return -1; // No slots filled
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}
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