void setup(void) { Serial.println(F("Touch Paint!")); tft.begin(); if (!ts.begin()) { Serial.println("Couldn't start touchscreen controller"); while (1); } Serial.println("Touchscreen started"); tft.fillScreen(ILI9341_BLACK); // make the color selection boxes tft.fillRect(0, 0, BOXSIZE, BOXSIZE, ILI9341_RED); tft.fillRect(BOXSIZE, 0, BOXSIZE, BOXSIZE, ILI9341_YELLOW); tft.fillRect(BOXSIZE*2, 0, BOXSIZE, BOXSIZE, ILI9341_GREEN); tft.fillRect(BOXSIZE*3, 0, BOXSIZE, BOXSIZE, ILI9341_CYAN); tft.fillRect(BOXSIZE*4, 0, BOXSIZE, BOXSIZE, ILI9341_BLUE); tft.fillRect(BOXSIZE*5, 0, BOXSIZE, BOXSIZE, ILI9341_MAGENTA); // select the current color 'red' tft.drawRect(0, 0, BOXSIZE, BOXSIZE, ILI9341_WHITE); currentcolor = ILI9341_RED; }
unsigned long testRects(uint16_t color) { unsigned long start; int n, i, i2, cx = tft.width() / 2, cy = tft.height() / 2; tft.fillScreen(ILI9341_BLACK); n = min(tft.width(), tft.height()); start = micros(); for (i = 2; i < n; i += 6) { i2 = i / 2; tft.drawRect(cx - i2, cy - i2, i, i, color); } return micros() - start; }
unsigned long testFilledRects(uint16_t color1, uint16_t color2) { unsigned long start, t = 0; int n, i, i2, cx = tft.width() / 2 - 1, cy = tft.height() / 2 - 1; tft.fillScreen(ILI9341_BLACK); n = min(tft.width(), tft.height()); for (i = n; i > 0; i -= 6) { i2 = i / 2; start = micros(); tft.fillRect(cx - i2, cy - i2, i, i, color1); t += micros() - start; // Outlines are not included in timing results tft.drawRect(cx - i2, cy - i2, i, i, color2); } return t; }
void loop() { // See if there's any touch data for us if (ts.bufferEmpty()) { return; } /* // You can also wait for a touch if (! ts.touched()) { return; } */ // Retrieve a point TS_Point p = ts.getPoint(); /* Serial.print("X = "); Serial.print(p.x); Serial.print("\tY = "); Serial.print(p.y); Serial.print("\tPressure = "); Serial.println(p.z); */ // Scale from ~0->4000 to tft.width using the calibration #'s p.x = map(p.x, TS_MINX, TS_MAXX, 0, tft.width()); p.y = map(p.y, TS_MINY, TS_MAXY, 0, tft.height()); /* Serial.print("("); Serial.print(p.x); Serial.print(", "); Serial.print(p.y); Serial.println(")"); */ if (p.y < BOXSIZE) { oldcolor = currentcolor; if (p.x < BOXSIZE) { currentcolor = ILI9341_RED; tft.drawRect(0, 0, BOXSIZE, BOXSIZE, ILI9341_WHITE); } else if (p.x < BOXSIZE*2) { currentcolor = ILI9341_YELLOW; tft.drawRect(BOXSIZE, 0, BOXSIZE, BOXSIZE, ILI9341_WHITE); } else if (p.x < BOXSIZE*3) { currentcolor = ILI9341_GREEN; tft.drawRect(BOXSIZE*2, 0, BOXSIZE, BOXSIZE, ILI9341_WHITE); } else if (p.x < BOXSIZE*4) { currentcolor = ILI9341_CYAN; tft.drawRect(BOXSIZE*3, 0, BOXSIZE, BOXSIZE, ILI9341_WHITE); } else if (p.x < BOXSIZE*5) { currentcolor = ILI9341_BLUE; tft.drawRect(BOXSIZE*4, 0, BOXSIZE, BOXSIZE, ILI9341_WHITE); } else if (p.x < BOXSIZE*6) { currentcolor = ILI9341_MAGENTA; tft.drawRect(BOXSIZE*5, 0, BOXSIZE, BOXSIZE, ILI9341_WHITE); } if (oldcolor != currentcolor) { if (oldcolor == ILI9341_RED) tft.fillRect(0, 0, BOXSIZE, BOXSIZE, ILI9341_RED); if (oldcolor == ILI9341_YELLOW) tft.fillRect(BOXSIZE, 0, BOXSIZE, BOXSIZE, ILI9341_YELLOW); if (oldcolor == ILI9341_GREEN) tft.fillRect(BOXSIZE*2, 0, BOXSIZE, BOXSIZE, ILI9341_GREEN); if (oldcolor == ILI9341_CYAN) tft.fillRect(BOXSIZE*3, 0, BOXSIZE, BOXSIZE, ILI9341_CYAN); if (oldcolor == ILI9341_BLUE) tft.fillRect(BOXSIZE*4, 0, BOXSIZE, BOXSIZE, ILI9341_BLUE); if (oldcolor == ILI9341_MAGENTA) tft.fillRect(BOXSIZE*5, 0, BOXSIZE, BOXSIZE, ILI9341_MAGENTA); } } if (((p.y-PENRADIUS) > BOXSIZE) && ((p.y+PENRADIUS) < tft.height())) { tft.fillCircle(p.x, p.y, PENRADIUS, currentcolor); } }