ST7789_TFT/240x240/SimpleTerminalOut/SimpleTerminalOut.ino

Simple terminal - output only

/*
  Created by Fabrizio Di Vittorio (fdivitto2013@gmail.com) - www.fabgl.com
  Copyright (c) 2019-2020 Fabrizio Di Vittorio.
  All rights reserved.

  This file is part of FabGL Library.

  FabGL is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  FabGL is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with FabGL.  If not, see <http://www.gnu.org/licenses/>.
 */


 /*
  * TFT Display signals:
  *   SCK  => GPIO 18
  *   MOSI => GPIO 23
  *   D/C  => GPIO 22
  *   RESX => GPIO 21
  */



#include "fabgl.h"


#define TFT_SCK    18
#define TFT_MOSI   23
#define TFT_DC     22
#define TFT_RESET  21
#define TFT_SPIBUS VSPI_HOST





fabgl::ST7789Controller DisplayController;
fabgl::Terminal         Terminal;


void setup()
{
  //Serial.begin(115200); delay(500); Serial.write("\n\n\n"); // DEBUG ONLY

  DisplayController.begin(TFT_SCK, TFT_MOSI, TFT_DC, TFT_RESET, -1, TFT_SPIBUS);
  DisplayController.setResolution(TFT_240x240);

  Terminal.begin(&DisplayController);
  //Terminal.setLogStream(Serial);  // DEBUG ONLY

  Terminal.loadFont(&fabgl::FONT_9x18);
  Terminal.enableCursor(true);
}


void slowPrintf(const char * format, ...)
{
  va_list ap;
  va_start(ap, format);
  int size = vsnprintf(nullptr, 0, format, ap) + 1;
  if (size > 0) {
    va_end(ap);
    va_start(ap, format);
    char buf[size + 1];
    vsnprintf(buf, size, format, ap);
    for (int i = 0; i < size; ++i) {
      Terminal.write(buf[i]);
      delay(25);
    }
  }
  va_end(ap);
}


void demo1()
{
  Terminal.write("\e[40;92m"); // background: black, foreground: green
  Terminal.write("\e[2J");     // clear screen
  Terminal.write("\e[1;1H");   // move cursor to 1,1
  slowPrintf("**** WELCOME TO FabGL ****\r\n");
  slowPrintf("by Fabrizio Di Vittorio\r\nwww.fabgl.com\r\n");
  slowPrintf("==========================\r\n\n");
  slowPrintf("This is a Display Controller, PS2 Mouse and Keyboard Controller, Graphics Library,  Game Engine and ANSI/VT Terminal for the ESP32\r\n\n");
  slowPrintf("Current settings\r\n");
  slowPrintf("Screen Size   : %d x %d\r\n", DisplayController.getScreenWidth(), DisplayController.getScreenHeight());
  slowPrintf("Terminal Size : %d x %d\r\n", Terminal.getColumns(), Terminal.getRows());
  slowPrintf("Free Memory   : %d bytes\r\n\n", heap_caps_get_free_size(MALLOC_CAP_8BIT));
}

void demo2()
{
  Terminal.write("\e[40;92m"); // background: black, foreground: green
  slowPrintf("8 or 64 colors supported (depends by GPIOs used)\r\n");
  slowPrintf("ANSI colors:\r\n");
  // foregrounds
  Terminal.write("\e[31mRED\t"); delay(500);
  Terminal.write("\e[32mGREEN\r\n"); delay(500);
  Terminal.write("\e[33mYELLOW\t"); delay(500);
  Terminal.write("\e[34mBLUE\r\n"); delay(500);
  Terminal.write("\e[35mMAGENTA\t"); delay(500);
  Terminal.write("\e[36mCYAN\r\n"); delay(500);
  Terminal.write("\e[37mWHITE\t"); delay(500);
  Terminal.write("\e[90mHBLACK\r\n"); delay(500);
  Terminal.write("\e[91mHRED\t"); delay(500);
  Terminal.write("\e[92mHGREEN\r\n"); delay(500);
  Terminal.write("\e[93mHYELLOW\t"); delay(500);
  Terminal.write("\e[94mHBLUE\r\n"); delay(500);
  Terminal.write("\e[95mHMAGENTA\t"); delay(500);
  Terminal.write("\e[96mHCYAN\r\n"); delay(500);
  Terminal.write("\e[97mHWHITE\t"); delay(500);
  // backgrounds
  Terminal.write("\e[40mBLACK\r\n"); delay(500);
  Terminal.write("\e[41mRED\e[40m\t"); delay(500);
  Terminal.write("\e[42mGREEN\e[40m\r\n"); delay(500);
  Terminal.write("\e[43mYELLOW\e[40m\t"); delay(500);
  Terminal.write("\e[44mBLUE\e[40m\r\n"); delay(500);
  Terminal.write("\e[45mMAGENTA\e[40m\t"); delay(500);
  Terminal.write("\e[46mCYAN\e[40m\r\n"); delay(500);
  Terminal.write("\e[47mWHITE\e[40m\t"); delay(500);
  Terminal.write("\e[100mHBLACK\e[40m\r\n"); delay(500);
  Terminal.write("\e[101mHRED\e[40m\t"); delay(500);
  Terminal.write("\e[102mHGREEN\e[40m\r\n"); delay(500);
  Terminal.write("\e[103mHYELLOW\e[40m\t"); delay(500);
  Terminal.write("\e[104mHBLUE\e[40m\r\n"); delay(500);
  Terminal.write("\e[105mHMAGENTA\e[40m\t"); delay(500);
  Terminal.write("\e[106mHCYAN\e[40m\r\n"); delay(500);
}

void demo3()
{
  Terminal.write("\e[40;92m"); // background: black, foreground: green
  slowPrintf("\nSupported styles:\r\n");
  slowPrintf("\e[0mNormal\r\n");
  slowPrintf("\e[1mBold\e[0m\r\n");
  slowPrintf("\e[3mItalic\e[0m\r\n");
  slowPrintf("\e[4mUnderlined\e[0m\r\n");
  slowPrintf("\e[5mBlink\e[0m\r\n");
  slowPrintf("\e[7mInverse\e[0m\r\n");
  slowPrintf("\e[1;3mBoldItalic\e[0m\r\n");
  slowPrintf("\e[1;3;4mBoldItalicUnderlined\e[0m\r\n");
  slowPrintf("\e[1;3;4;5mBoldItalicUnderlinedBlinking\e[0m\r\n");
  slowPrintf("\e[1;3;4;5;7mBoldItalicUnderlinedBlinkingInverse\e[0m\r\n");
  slowPrintf("\e#6Double Width Line\r\n");
  slowPrintf("\e#6\e#3Double Height Line\r\n"); // top half
  slowPrintf("\e#6\e#4Double Height Line\r\n"); // bottom half
}

void demo4()
{
  Canvas cv(&DisplayController);
  Terminal.write("\e[40;92m"); // background: black, foreground: green
  slowPrintf("\nMixed text and graphics:\r\n");
  slowPrintf("Points...\r\n");
  for (int i = 0; i < 500; ++i) {
    cv.setPenColor(random(256), random(256), random(256));
    cv.setPixel(random(cv.getWidth()), random(cv.getHeight()));
    delay(15);
  }
  delay(500);
  slowPrintf("\e[40;92mLines...\r\n");
  for (int i = 0; i < 50; ++i) {
    cv.setPenColor(random(256), random(256), random(256));
    cv.drawLine(random(cv.getWidth()), random(cv.getHeight()), random(cv.getWidth()), random(cv.getHeight()));
    delay(50);
  }
  delay(500);
  slowPrintf("\e[40;92mRectangles...\r\n");
  for (int i = 0; i < 50; ++i) {
    cv.setPenColor(random(256), random(256), random(256));
    cv.drawRectangle(random(cv.getWidth()), random(cv.getHeight()), random(cv.getWidth()), random(cv.getHeight()));
    delay(50);
  }
  delay(500);
  slowPrintf("\e[40;92mEllipses...\r\n");
  for (int i = 0; i < 50; ++i) {
    cv.setPenColor(random(256), random(256), random(256));
    cv.drawEllipse(random(cv.getWidth()), random(cv.getHeight()), random(cv.getWidth()), random(cv.getHeight()));
    delay(50);
  }
  for (int i = 0; i < 15; ++i) {
    Terminal.write("\e[40;92mScrolling...\r\n");
    delay(250);
  }
  cv.clear();
}

void loop()
{
  delay(1000);
  demo1();
  delay(4000);
  demo2();
  delay(4000);
  demo3();
  delay(4000);
  demo4();
  delay(4000);
}