/*
   Example for TFT_eSPI library
 
   Created by Bodmer 11/03/17
 
   Make sure LOAD_GFXFF is defined in the used User_Setup file
   within the library folder.
 
   --------------------------- NOTE ----------------------------------------
   The free font encoding format does not lend itself easily to plotting
   the background without flicker. For values that changes on screen it is
   better to use Fonts 1- 8 which are encoded specifically for rapid
   drawing with background.
   -------------------------------------------------------------------------
 
   #########################################################################
   ###### DON'T FORGET TO UPDATE THE User_Setup.h FILE IN THE LIBRARY ######
   ######   TO SELECT YOUR DISPLAY TYPE, PINS USED AND ENABLE FONTS   ######
   #########################################################################
 */
 
 // Note the the tilda symbol ~ does not exist in some fonts at the moment
 #define TEXT "abc MWy 123 |" // Text that will be printed on screen in any font
 
 #include "SPI.h"
 #include "TFT_eSPI.h"
 
 // Stock font and GFXFF reference handle
 #define GFXFF 1
 #define FF18 &FreeSans12pt7b
 
 // Custom are fonts added to library "TFT_eSPI\Fonts\Custom" folder
 // a #include must also be added to the "User_Custom_Fonts.h" file
 // in the "TFT_eSPI\User_Setups" folder. See example entries.
 #define CF_OL24 &Orbitron_Light_24
 #define CF_OL32 &Orbitron_Light_32
 #define CF_RT24 &Roboto_Thin_24
 #define CF_S24  &Satisfy_24
 #define CF_Y32  &Yellowtail_32
 
 
 // Use hardware SPI
 TFT_eSPI tft = TFT_eSPI();
 
 void setup(void) {
 
   Serial.begin(250000);
   
   tft.begin();
 
   tft.setRotation(1);
 
 }
 
 void loop() {
 
   // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
   // Show custom fonts
   // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
 
   // Where font sizes increase the screen is not cleared as the larger fonts overwrite
   // the smaller one with the background colour.
 
   // We can set the text datum to be Top, Middle, Bottom vertically and Left, Centre
   // and Right horizontally. These are the text datums that can be used:
   // TL_DATUM = Top left (default)
   // TC_DATUM = Top centre
   // TR_DATUM = Top right
   // ML_DATUM = Middle left
   // MC_DATUM = Middle centre <<< This is used below
   // MR_DATUM = Middle right
   // BL_DATUM = Bottom left
   // BC_DATUM = Bottom centre
   // BR_DATUM = Bottom right
   // L_BASELINE = Left character baseline (Line the 'A' character would sit on)
   // C_BASELINE = Centre character baseline
   // R_BASELINE = Right character baseline
 
   //Serial.println();
 
   // Set text datum to middle centre (MC_DATUM)
   tft.setTextDatum(MC_DATUM);
 
   // Set text colour to white with black background
   // Unlike the stock Adafruit_GFX library, the TFT_eSPI library DOES draw the background
   // for the custom and Free Fonts
   tft.setTextColor(TFT_WHITE, TFT_BLACK);
 
   tft.fillScreen(TFT_MAGENTA);            // Clear screen
   tft.setFreeFont(FF18);                 // Select the font
   tft.drawString("Yellowtail 32", 160, 60, GFXFF);// Print the string name of the font
   tft.setFreeFont(CF_Y32);                 // Select the font
   tft.drawString(TEXT, 160, 120, GFXFF);// Print the string name of the font
   delay(2000);
 
   tft.fillScreen(TFT_BLUE);            // Clear screen
   tft.setFreeFont(FF18);                 // Select the font
   tft.drawString("Satisfy 24", 160, 60, GFXFF);// Print the string name of the font
   tft.setFreeFont(CF_S24);                 // Select the font
   tft.drawString(TEXT, 160, 120, GFXFF);// Print the test text in the custom font
   delay(2000);
 
   tft.fillScreen(TFT_RED);            // Clear screen
   tft.setFreeFont(FF18);                 // Select the font
   tft.drawString("Roboto 24", 160, 60, GFXFF);// Print the string name of the font
   tft.setFreeFont(CF_RT24);                 // Select the font
   tft.drawString(TEXT, 160, 120, GFXFF);// Print the test text in the custom font
   delay(2000);
 
   tft.fillScreen(TFT_DARKGREY);            // Clear screen
   tft.setFreeFont(FF18);                 // Select the font
   tft.drawString("Orbitron 24", 160, 60, GFXFF);// Print the string name of the font
   tft.setFreeFont(CF_OL24);                 // Select the font
   tft.drawString(TEXT, 160, 120, GFXFF);// Print the test text in the custom font
   delay(2000);
   
   // Here we do not clear the screen and rely on the new text over-writing the old
   tft.setFreeFont(FF18);                 // Select the font
   tft.drawString("Orbitron 32", 160, 60, GFXFF);// Print the string name of the font
   tft.setFreeFont(CF_OL32);                 // Select the font
   tft.drawString(TEXT, 160, 120, GFXFF);// Print the test text in the custom font
   delay(2000);
 
   // Here we use text background padding to over-write the old text
   tft.fillScreen(TFT_YELLOW);            // Clear screen
   tft.setTextColor(TFT_WHITE, TFT_BLACK);
 
   // Here we use text background padding to over-write the old text
   tft.setTextPadding(tft.width() - 20); // Blanked area will be width of screen minus 20 pixels
   tft.setFreeFont(FF18);                 // Select the font
   tft.drawString("Orbitron 32 with padding", 160, 60, GFXFF);// Print the string name of the font
   tft.setFreeFont(CF_OL32);                 // Select the font
   tft.drawString(TEXT, 160, 120, GFXFF);// Print the test text in the custom font
   delay(2000);
 
   // Use 80 pixel wide padding so old numbers over-write old ones
   // One of the problrms with proportionally spaced numbers is that they jiggle position
   tft.setTextPadding(80);
   tft.setTextDatum(MC_DATUM);
   tft.setFreeFont(CF_OL32);
   for( int i = 100; i > 0; i--)
   {
     tft.drawNumber( i, 160, 200);
     delay(500);
   }
 
   // Reset text padding to zero (default)
   tft.setTextPadding(0);
 }
 

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