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demo graphics test for hallowing
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‎Hallowing/graphicstest/graphicstest.ino

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/***************************************************
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Example graphics test code specifically for Hallowing
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Adafruit invests time and resources providing this open source code,
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please support Adafruit and open-source hardware by purchasing
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products from Adafruit!
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Written by Limor Fried/Ladyada for Adafruit Industries.
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MIT license, all text above must be included in any redistribution
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****************************************************/
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#include <Adafruit_GFX.h> // Core graphics library
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#include <Adafruit_ST7735.h> // Hardware-specific library for ST7735
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#include <SPI.h>
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// These are 'hard wired'
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#define TFT_CS 39
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#define TFT_RST 37
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#define TFT_DC 38
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#define TFT_BACKLIGHT 7
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Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_RST);
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float p = 3.1415926;
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void setup(void) {
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pinMode(TFT_BACKLIGHT, OUTPUT);
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digitalWrite(TFT_BACKLIGHT, HIGH);
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Serial.begin(9600);
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Serial.print("Hello! ST77xx TFT Test");
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// Use this initializer (uncomment) if you're using a 1.44" TFT
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tft.initR(INITR_144GREENTAB); // initialize a ST7735S chip, black tab
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tft.setRotation(2);
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Serial.println("Initialized");
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uint16_t time = millis();
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tft.fillScreen(ST77XX_BLACK);
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time = millis() - time;
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Serial.println(time, DEC);
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delay(500);
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// large block of text
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tft.fillScreen(ST77XX_BLACK);
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testdrawtext("Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur adipiscing ante sed nibh tincidunt feugiat. Maecenas enim massa, fringilla sed malesuada et, malesuada sit amet turpis. Sed porttitor neque ut ante pretium vitae malesuada nunc bibendum. Nullam aliquet ultrices massa eu hendrerit. Ut sed nisi lorem. In vestibulum purus a tortor imperdiet posuere. ", ST77XX_WHITE);
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delay(1000);
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// tft print function!
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tftPrintTest();
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delay(4000);
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// a single pixel
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tft.drawPixel(tft.width()/2, tft.height()/2, ST77XX_GREEN);
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delay(500);
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// line draw test
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testlines(ST77XX_YELLOW);
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delay(500);
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// optimized lines
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testfastlines(ST77XX_RED, ST77XX_BLUE);
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delay(500);
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testdrawrects(ST77XX_GREEN);
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delay(500);
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testfillrects(ST77XX_YELLOW, ST77XX_MAGENTA);
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delay(500);
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tft.fillScreen(ST77XX_BLACK);
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testfillcircles(10, ST77XX_BLUE);
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testdrawcircles(10, ST77XX_WHITE);
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delay(500);
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testroundrects();
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delay(500);
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testtriangles();
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delay(500);
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mediabuttons();
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delay(500);
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Serial.println("done");
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delay(1000);
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}
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void loop() {
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tft.invertDisplay(true);
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delay(500);
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tft.invertDisplay(false);
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delay(500);
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}
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void testlines(uint16_t color) {
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tft.fillScreen(ST77XX_BLACK);
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for (int16_t x=0; x < tft.width(); x+=6) {
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tft.drawLine(0, 0, x, tft.height()-1, color);
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}
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for (int16_t y=0; y < tft.height(); y+=6) {
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tft.drawLine(0, 0, tft.width()-1, y, color);
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}
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tft.fillScreen(ST77XX_BLACK);
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for (int16_t x=0; x < tft.width(); x+=6) {
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tft.drawLine(tft.width()-1, 0, x, tft.height()-1, color);
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}
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for (int16_t y=0; y < tft.height(); y+=6) {
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tft.drawLine(tft.width()-1, 0, 0, y, color);
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}
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tft.fillScreen(ST77XX_BLACK);
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for (int16_t x=0; x < tft.width(); x+=6) {
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tft.drawLine(0, tft.height()-1, x, 0, color);
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}
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for (int16_t y=0; y < tft.height(); y+=6) {
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tft.drawLine(0, tft.height()-1, tft.width()-1, y, color);
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}
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tft.fillScreen(ST77XX_BLACK);
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for (int16_t x=0; x < tft.width(); x+=6) {
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tft.drawLine(tft.width()-1, tft.height()-1, x, 0, color);
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}
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for (int16_t y=0; y < tft.height(); y+=6) {
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tft.drawLine(tft.width()-1, tft.height()-1, 0, y, color);
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}
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}
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void testdrawtext(char *text, uint16_t color) {
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tft.setCursor(0, 0);
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tft.setTextColor(color);
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tft.setTextWrap(true);
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tft.print(text);
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}
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void testfastlines(uint16_t color1, uint16_t color2) {
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tft.fillScreen(ST77XX_BLACK);
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for (int16_t y=0; y < tft.height(); y+=5) {
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tft.drawFastHLine(0, y, tft.width(), color1);
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}
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for (int16_t x=0; x < tft.width(); x+=5) {
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tft.drawFastVLine(x, 0, tft.height(), color2);
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}
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}
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void testdrawrects(uint16_t color) {
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tft.fillScreen(ST77XX_BLACK);
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for (int16_t x=0; x < tft.width(); x+=6) {
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tft.drawRect(tft.width()/2 -x/2, tft.height()/2 -x/2 , x, x, color);
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}
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}
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void testfillrects(uint16_t color1, uint16_t color2) {
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tft.fillScreen(ST77XX_BLACK);
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for (int16_t x=tft.width()-1; x > 6; x-=6) {
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tft.fillRect(tft.width()/2 -x/2, tft.height()/2 -x/2 , x, x, color1);
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tft.drawRect(tft.width()/2 -x/2, tft.height()/2 -x/2 , x, x, color2);
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}
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}
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void testfillcircles(uint8_t radius, uint16_t color) {
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for (int16_t x=radius; x < tft.width(); x+=radius*2) {
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for (int16_t y=radius; y < tft.height(); y+=radius*2) {
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tft.fillCircle(x, y, radius, color);
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}
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}
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}
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void testdrawcircles(uint8_t radius, uint16_t color) {
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for (int16_t x=0; x < tft.width()+radius; x+=radius*2) {
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for (int16_t y=0; y < tft.height()+radius; y+=radius*2) {
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tft.drawCircle(x, y, radius, color);
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}
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}
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}
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void testtriangles() {
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tft.fillScreen(ST77XX_BLACK);
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int color = 0xF800;
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int t;
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int w = tft.width()/2;
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int x = tft.height()-1;
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int y = 0;
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int z = tft.width();
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for(t = 0 ; t <= 15; t++) {
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tft.drawTriangle(w, y, y, x, z, x, color);
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x-=4;
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y+=4;
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z-=4;
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color+=100;
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}
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}
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void testroundrects() {
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tft.fillScreen(ST77XX_BLACK);
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int color = 100;
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int i;
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int t;
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for(t = 0 ; t <= 4; t+=1) {
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int x = 0;
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int y = 0;
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int w = tft.width()-2;
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int h = tft.height()-2;
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for(i = 0 ; i <= 16; i+=1) {
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tft.drawRoundRect(x, y, w, h, 5, color);
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x+=2;
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y+=3;
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w-=4;
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h-=6;
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color+=1100;
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}
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color+=100;
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}
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}
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void tftPrintTest() {
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tft.setTextWrap(false);
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tft.fillScreen(ST77XX_BLACK);
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tft.setCursor(0, 30);
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tft.setTextColor(ST77XX_RED);
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tft.setTextSize(1);
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tft.println("Hello World!");
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tft.setTextColor(ST77XX_YELLOW);
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tft.setTextSize(2);
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tft.println("Hello World!");
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tft.setTextColor(ST77XX_GREEN);
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tft.setTextSize(3);
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tft.println("Hello World!");
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tft.setTextColor(ST77XX_BLUE);
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tft.setTextSize(4);
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tft.print(1234.567);
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delay(1500);
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tft.setCursor(0, 0);
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tft.fillScreen(ST77XX_BLACK);
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tft.setTextColor(ST77XX_WHITE);
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tft.setTextSize(0);
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tft.println("Hello World!");
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tft.setTextSize(1);
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tft.setTextColor(ST77XX_GREEN);
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tft.print(p, 6);
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tft.println(" Want pi?");
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tft.println(" ");
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tft.print(8675309, HEX); // print 8,675,309 out in HEX!
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tft.println(" Print HEX!");
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tft.println(" ");
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tft.setTextColor(ST77XX_WHITE);
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tft.println("Sketch has been");
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tft.println("running for: ");
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tft.setTextColor(ST77XX_MAGENTA);
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tft.print(millis() / 1000);
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tft.setTextColor(ST77XX_WHITE);
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tft.print(" seconds.");
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}
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void mediabuttons() {
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// play
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tft.fillScreen(ST77XX_BLACK);
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tft.fillRoundRect(25, 10, 78, 60, 8, ST77XX_WHITE);
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tft.fillTriangle(42, 20, 42, 60, 90, 40, ST77XX_RED);
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delay(500);
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// pause
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tft.fillRoundRect(25, 90, 78, 60, 8, ST77XX_WHITE);
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tft.fillRoundRect(39, 98, 20, 45, 5, ST77XX_GREEN);
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tft.fillRoundRect(69, 98, 20, 45, 5, ST77XX_GREEN);
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delay(500);
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// play color
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tft.fillTriangle(42, 20, 42, 60, 90, 40, ST77XX_BLUE);
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delay(50);
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// pause color
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tft.fillRoundRect(39, 98, 20, 45, 5, ST77XX_RED);
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tft.fillRoundRect(69, 98, 20, 45, 5, ST77XX_RED);
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// play color
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tft.fillTriangle(42, 20, 42, 60, 90, 40, ST77XX_GREEN);
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}

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