TFTTerminal

LICENSE

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+  License
+  -------
+
+  Copyright (c) 2021
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in all
+  copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+  SOFTWARE.

README.md

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+# TFTTerminal
+
+## License
+
+[MIT](LICENSE)

library.json

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+{
+  "name": "TFTTerminal",
+  "description": "TFTTerminal",
+  "keywords": "TFTTerminal",
+  "authors": {
+    "name": "anonymous",
+    "url": "http://www.google.com"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/Tinyu-Zhao/TFTTerminal.git"
+  },
+  "version": "0.0.1",
+  "framework": "arduino",
+  "platforms": "espressif32"
+}

library.properties

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+name=TFTTerminal
+version=0.0.1
+author=anonymous
+maintainer=anonymous
+sentence=Library for TFTTerminal
+paragraph=See more on
+category=Device Control
+url=https://github.com/Tinyu-Zhao/TFTTerminal
+architectures=esp32
+includes=TFTTerminal.h

src/TFTTerminal.cpp

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+#include "TFTTerminal.h"
+
+TFTTerminal::TFTTerminal(TFT_eSprite *dis_buff_ptr)
+{
+    _dis_buff_ptr = dis_buff_ptr;
+    memset(discharbuff, 0, 55 * 60);
+}
+
+TFTTerminal::~TFTTerminal()
+{
+
+}
+
+
+void TFTTerminal::setcolor( uint16_t color, uint16_t bk_color )
+{
+    _color = color;
+    _bkcolor = bk_color;
+}
+
+void TFTTerminal::setGeometry(uint16_t x, uint16_t y, uint16_t w, uint16_t h )
+{
+    _win_x_pos = x;
+    _win_y_pos = y;
+    _win_w = w;
+    _win_h = h;
+
+    _line_x_limit = _win_w / _font_x_size;
+    _line_y_limit = _win_h / _font_y_size;
+}
+
+void TFTTerminal::setFontsize(uint8_t size)
+{
+    size = ( size == 0 ) ? 1 : size;
+    _font_x_size = 5 * size ;
+    _font_y_size = 6 * size ;
+    _fontSize = size;
+
+    _line_x_limit = _win_w / _font_x_size;
+    _line_y_limit = _win_h / _font_y_size;
+}
+
+size_t TFTTerminal::write(uint8_t chardata)
+{
+
+    bool flush_page_flag = false;
+    uint8_t dis_y_pos = 0;
+
+    if ((chardata == '\r') || (chardata == '\n'))
+    {
+        xpos = 0;
+        ypos++;
+        ypos = ypos % 60;
+        memset(discharbuff[ypos % 60], 0, 55);
+        return 1;
+    }
+    else if(xpos >= _line_x_limit)
+    {
+        xpos = 0;
+        ypos++;
+        ypos = ypos % 60;
+        memset(discharbuff[ypos % 60], 0, 55);
+    }
+
+    discharbuff[ypos][xpos] = chardata;
+    xpos++;
+
+    if ((dispos <= ypos) && ((ypos - dispos) > _line_y_limit))
+    {
+        dispos = ypos - _line_y_limit;
+        flush_page_flag = true;
+    }
+    else if ((dispos <= ypos) && ((ypos - dispos) <= _line_y_limit))
+    {
+        dis_y_pos = ypos - dispos;
+        flush_page_flag = false;
+    }
+    else if ((dispos > ypos) && ((60 - (dispos - ypos)) > _line_y_limit))
+    {
+        dispos = 60 - ( _line_y_limit - ypos );
+        flush_page_flag = true;
+    }
+    else if ((dispos > ypos) && ((60 - (dispos - ypos)) > _line_y_limit))
+    {
+        dis_y_pos = 60 - ( dispos - ypos );
+        flush_page_flag = false;
+    }
+
+    dispos = dispos % 60;
+
+    _dis_buff_ptr->setTextColor(_color);
+    _dis_buff_ptr->setTextSize(_fontSize);
+
+    if( flush_page_flag )
+    {
+        _dis_buff_ptr->fillSprite(_bkcolor);
+
+        for (size_t i = 0; i < _line_y_limit; i++)
+        {
+            _dis_buff_ptr->drawString((char *)discharbuff[(dispos + i) % 60], 0, i * _font_y_size);
+        }
+    }
+    else
+    {
+        _dis_buff_ptr->drawChar(chardata, ( xpos - 1 ) * _font_x_size, dis_y_pos * _font_y_size );
+    }
+    _dis_buff_ptr->pushSprite(_win_x_pos, _win_y_pos);
+
+    return 1;
+
+}
+
+size_t TFTTerminal::write(const uint8_t *buffer, size_t size)
+{
+
+    while ((size != 0) && (*buffer != '\0'))
+    {
+        if ((*buffer == '\r') || (*buffer == '\n'))
+        {
+            xpos = 0;
+            ypos++;
+            ypos = ypos % 60;
+            memset(discharbuff[ypos % 60], 0, 55);
+            buffer++;
+            size--;
+            continue;
+        }
+        else if(xpos >= _line_x_limit)
+        {
+            xpos = 0;
+            ypos++;
+            ypos = ypos % 60;
+            memset(discharbuff[ypos % 60], 0, 55);
+        }
+        discharbuff[ypos][xpos] = *buffer;
+        xpos++;
+        buffer++;
+        size--;
+    }
+
+    if ((dispos <= ypos) && ((ypos - dispos) > _line_y_limit))
+    {
+        dispos = ypos - _line_y_limit;
+    }
+    else if ((dispos > ypos) && ((60 - (dispos - ypos)) > _line_y_limit))
+    {
+        dispos = 60- ( _line_y_limit - ypos );
+    }
+
+    dispos = dispos % 60;
+
+    _dis_buff_ptr->setTextColor(_color);
+    _dis_buff_ptr->setTextSize(_fontSize);
+    _dis_buff_ptr->fillSprite(_bkcolor);
+    //_dis_buff_ptr->fillRect(_win_x_pos, _win_y_pos, _win_w, _win_h, _bkcolor);
+    for (size_t i = 0; i < _line_y_limit; i++)
+    {
+        _dis_buff_ptr->drawString((char *)discharbuff[(dispos + i) % 60], 0, i * _font_y_size);
+    }
+    _dis_buff_ptr->pushSprite(_win_x_pos, _win_y_pos);
+    return 1;
+}

src/TFTTerminal.h

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+#ifndef _TFTTERMINAL_H_
+#define _TFTTERMINAL_H_
+
+#include <M5Stack.h>
+#include <Print.h>
+
+class TFTTerminal : public Print
+{
+private:
+    TFT_eSprite *disptr;
+    char discharbuff[60][55];
+    uint32_t xpos = 0,ypos = 0, dispos = 0;
+    TFT_eSprite* _dis_buff_ptr = NULL;
+    uint16_t _bkcolor = TFT_BLACK;
+    uint16_t _color = TFT_GREEN;
+
+    uint16_t _win_x_pos = 0,_win_y_pos = 0,_win_w = 320,_win_h = 240;
+    uint16_t _font_x_size = 6,_font_y_size = 8;
+    uint8_t  _fontSize = 0;
+    uint16_t _line_x_limit = 53,_line_y_limit = 30;
+
+public:
+    TFTTerminal(TFT_eSprite *dis_buff_ptr);
+    ~TFTTerminal();
+
+    void setcolor( uint16_t color, uint16_t bk_color );
+    void setGeometry(uint16_t x, uint16_t y, uint16_t w, uint16_t h );
+    void setFontsize(uint8_t size);
+
+    size_t write(uint8_t) ;
+    size_t write(const uint8_t *buffer, size_t size);
+};
+
+
+#endif