ubitxv6/nano_gui.cpp

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#include <Arduino.h>
#include "colors.h"
#include "settings.h"
#include "ubitx.h"
#include "nano_gui.h"
#include "touch.h"
#include <SPI.h>
#include <avr/pgmspace.h>
/*****************
* Begin TFT functions
*****************/
#define ILI9341_CS_PIN TFT_CS
#define ILI9341_DC_PIN TFT_DC
#include "PDQ_MinLib/PDQ_ILI9341.h"
PDQ_ILI9341 tft;
#include "nano_font.h"
void displayInit(void){
//Pulling this low 6 times should exit deep sleep mode
pinMode(TFT_CS,OUTPUT);
for(uint8_t i = 0; i < 6; ++i){
digitalWrite(TFT_CS,HIGH);
digitalWrite(TFT_CS,LOW);
}
digitalWrite(TFT_CS,HIGH);//Disable writing for now
tft.begin();
tft.setFont(ubitx_font);
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tft.setTextWrap(true);
tft.setTextColor(DISPLAY_GREEN,DISPLAY_BLACK);
tft.setTextSize(1);
tft.setRotation(1);
}
void displayPixel(unsigned int x, unsigned int y, unsigned int c){
tft.drawPixel(x,y,c);
}
void displayHline(unsigned int x, unsigned int y, unsigned int w, unsigned int c){
tft.drawFastHLine(x,y,w,c);
}
void displayVline(unsigned int x, unsigned int y, unsigned int l, unsigned int c){
tft.drawFastVLine(x,y,l,c);
}
void displayClear(unsigned int color){
tft.fillRect(0,0,320,240,color);
}
void displayRect(unsigned int x,unsigned int y,unsigned int w,unsigned int h,unsigned int c){
tft.drawRect(x,y,w,h,c);
}
void displayFillrect(unsigned int x,unsigned int y,unsigned int w,unsigned int h,unsigned int c){
tft.fillRect(x,y,w,h,c);
}
void displayChar(int16_t x, int16_t y, unsigned char c, uint16_t color, uint16_t bg) {
tft.drawCharGFX(x,y,c,color,bg,1);
}
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void displayRawText(char *text, int x1, int y1, int w, int color, int background){
tft.setTextColor(color,background);
tft.setCursor(x1,y1);
tft.setBound(x1,x1+w);
tft.print(text);
}
void displayText(char *text, int x1, int y1, int w, int h, int color, int background, int border, TextJustification_e justification)
{
displayFillrect(x1, y1, w ,h, background);
displayRect(x1, y1, w ,h, border);
int16_t x1_out;
int16_t y1_out;
uint16_t width_out;
uint16_t height_out;
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tft.getTextBounds(text,x1,y1,&x1_out,&y1_out,&width_out,&height_out,w);
if(TextJustification_e::Center == justification){
x1 += (w - ( (int32_t)width_out + (x1_out-x1)))/2;
}
else if(TextJustification_e::Right == justification){
x1 += w - ((int32_t)width_out + (x1_out-x1));
}
else{
x1 += 2;//Give a little bit of padding from the border
}
y1 += (ubitx_font->yAdvance + h - ( (int32_t)height_out))/2;
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displayRawText(text,x1,y1,w,color,background);
}
void setupTouch(){
int x1, y1, x2, y2, x3, y3, x4, y4;
Point ts_point;
displayClear(DISPLAY_BLACK);
strncpy_P(b,(const char*)F("Click on the cross"),sizeof(b));
displayText(b, 20,100, 200, 50, DISPLAY_WHITE, DISPLAY_BLACK, DISPLAY_BLACK);
// TOP-LEFT
displayHline(10,20,20,DISPLAY_WHITE);
displayVline(20,10,20, DISPLAY_WHITE);
while(!readTouch(&ts_point))
delay(100);
while(readTouch(&ts_point))
delay(100);
x1 = ts_point.x;
y1 = ts_point.y;
//rubout the previous one
displayHline(10,20,20,DISPLAY_BLACK);
displayVline(20,10,20, DISPLAY_BLACK);
delay(1000);
//TOP RIGHT
displayHline(290,20,20,DISPLAY_WHITE);
displayVline(300,10,20, DISPLAY_WHITE);
while(!readTouch(&ts_point))
delay(100);
while(readTouch(&ts_point))
delay(100);
x2 = ts_point.x;
y2 = ts_point.y;
displayHline(290,20,20,DISPLAY_BLACK);
displayVline(300,10,20, DISPLAY_BLACK);
delay(1000);
//BOTTOM LEFT
displayHline(10,220,20,DISPLAY_WHITE);
displayVline(20,210,20, DISPLAY_WHITE);
while(!readTouch(&ts_point))
delay(100);
x3 = ts_point.x;
y3 = ts_point.y;
while(readTouch(&ts_point))
delay(100);
displayHline(10,220,20,DISPLAY_BLACK);
displayVline(20,210,20, DISPLAY_BLACK);
delay(1000);
//BOTTOM RIGHT
displayHline(290,220,20,DISPLAY_WHITE);
displayVline(300,210,20, DISPLAY_WHITE);
while(!readTouch(&ts_point))
delay(100);
x4 = ts_point.x;
y4 = ts_point.y;
displayHline(290,220,20,DISPLAY_BLACK);
displayVline(300,210,20, DISPLAY_BLACK);
// we average two readings and divide them by half and store them as scaled integers 10 times their actual, fractional value
//the x points are located at 20 and 300 on x axis, hence, the delta x is 280, we take 28 instead, to preserve fractional value,
//there are two readings (x1,x2) and (x3, x4). Hence, we have to divide by 28 * 2 = 56
globalSettings.touchSlopeX = ((x4 - x3) + (x2 - x1))/56;
//the y points are located at 20 and 220 on the y axis, hence, the delta is 200. we take it as 20 instead, to preserve the fraction value
//there are two readings (y1, y2) and (y3, y4). Hence we have to divide by 20 * 2 = 40
globalSettings.touchSlopeY = ((y3 - y1) + (y4 - y2))/40;
//x1, y1 is at 20 pixels
globalSettings.touchOffsetX = x1 + -((20 * globalSettings.touchSlopeX)/10);
globalSettings.touchOffsetY = y1 + -((20 * globalSettings.touchSlopeY)/10);
/*
Serial.print(x1);Serial.print(':');Serial.println(y1);
Serial.print(x2);Serial.print(':');Serial.println(y2);
Serial.print(x3);Serial.print(':');Serial.println(y3);
Serial.print(x4);Serial.print(':');Serial.println(y4);
//for debugging
Serial.print(globalSettings.touchSlopeX); Serial.print(' ');
Serial.print(globalSettings.touchSlopeY); Serial.print(' ');
Serial.print(globalSettings.touchOffsetX); Serial.print(' ');
Serial.println(globalSettings.touchOffsetY); Serial.println(' ');
*/
SaveSettingsToEeprom();
displayClear(DISPLAY_BLACK);
}