723 lines
16 KiB
C++
723 lines
16 KiB
C++
#include <RL_HT16K33.h>
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#include <Wire.h>
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uint8_t const I2C_READ = 1; /*IIC读*/
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uint8_t const I2C_WRITE = 0; /*IIC*/
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uint8_t const I2C_DELAY_USEC = 4; /*IIC延时微妙*/
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/*
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*函数名称： uint16_t _flip_uint16(uint16_t in)
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*函数功能： 像素点左右反转
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*函数参数： sda_port scl_port --IIC接口
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*函数返回值：void
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*/
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uint16_t _flip_uint16(uint16_t in)
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{
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uint16_t out = 0;
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for (uint8_t i = 0; i < 16; i++)
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{
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out <<= 1;
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out |= in & 1;
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in >>= 1;
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}
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return out;
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}
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/*
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*函数名称： HT16K33(uint8_t sda_port,uint8_t scl_port)
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*函数功能： 类构造函数
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*函数参数： sda_port scl_port --IIC接口
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*函数返回值：void
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*/
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HT16K33::HT16K33()
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{
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}
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/*
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*函数名称： setBrightness(uint8_t b)
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*函数功能： 设置亮度
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*函数参数： b--亮度值
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*函数返回值：void
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*/
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void HT16K33::setBrightness(uint8_t b) {
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if (b > 15) b = 15;
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Wire.beginTransmission((uint8_t)i2c_addr);
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Wire.write(0xE0 | b);
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Wire.endTransmission();
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}
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/*
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*函数名称： blinkRate(uint8_t b)
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*函数功能： 闪烁频率
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*函数参数： b--速度值
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*函数返回值：void
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*/
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void HT16K33::blinkRate(uint8_t b) {
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Wire.beginTransmission(i2c_addr);
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if (b > 3) b = 0; // turn off if not sure
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Wire.write(HT16K33_BLINK_CMD | HT16K33_BLINK_DISPLAYON | (b << 1));
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Wire.endTransmission();
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}
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/*
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*函数名称： begin(uint8_t _addr = 0x70)
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*函数功能： 地址初始化
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*函数参数： _addr -- HT的地址
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*函数返回值：void
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*/
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void HT16K33::begin(uint8_t _addr = 0x70) {
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Wire.begin();
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constructor(16, 8); /*设置宽度和高度*/
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i2c_addr = _addr;
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// i2c_addr <<= 1; /*左移一位，留给读写位*/
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Wire.beginTransmission(i2c_addr); /*IIC发送第一个字节包含有地址信息和读写操作标志*/
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Wire.write(0x21); /*turn on oscillator*/
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Wire.endTransmission();
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blinkRate(HT16K33_BLINK_OFF); /*闪烁频率*/
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setBrightness(1); /*max brightness 15*/
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}
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/*
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*函数名称： writeDisplay(void)
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*函数功能： 将数据进行显示
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*函数参数： 无
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*函数返回值：void
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*/
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void HT16K33::writeDisplay(void) {
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Wire.beginTransmission(i2c_addr);
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Wire.write((uint8_t)0x00); // start at address $00
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for (uint8_t i=0; i<8; i++) {
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if(hf_flip){
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displaybuffer[i]=_flip_uint16(displaybuffer[i]);
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}
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Wire.write(displaybuffer[i] & 0xFF);
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Wire.write(displaybuffer[i] >> 8);
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}
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Wire.endTransmission();
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}
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void HT16K33::setHf_flip(uint8_t x) {
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hf_flip = x;
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}
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/*
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*函数名称： clear(void)
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*函数功能： 清空显示
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*函数参数： 无
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*函数返回值：void
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*/
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void HT16K33::clear(void) {
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for (uint8_t i=0; i<8; i++) {
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displaybuffer[i] = 0;
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}
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}
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/*
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*函数名称： drawPixel(int16_t x, int16_t y, uint16_t color)
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*函数功能： 单点显示 16 X 8
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*函数参数： 无
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*函数返回值：void
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*/
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void HT16K33::drawPixel(int16_t x, int16_t y, uint16_t color) {
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if ((y < 0) || (y >= 8)) return;
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if ((x < 0) || (x >= 16)) return;
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switch (2) {
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case 1:
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swap(x, y);
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x = 16 - x - 1;
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break;
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case 2:
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// x = 16 - x - 1;
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y = 8 - y - 1;
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break;
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case 3:
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swap(x, y);
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y = 8 - y - 1;
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break;
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}
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if (color) {
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displaybuffer[y] |= 1 << x;
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} else {
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displaybuffer[y] &= ~(1 << x) & ~(1 << (x+16));
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}
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}
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/*
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*函数名称： constructor(int16_t w, int16_t h)
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*函数功能： 类内部变量初始化
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*函数参数： int16_t w, int16_t h 宽度和高度
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*函数返回值：void
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*/
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void HT16K33::constructor(int16_t w, int16_t h) {
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_width = WIDTH = w;
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_height = HEIGHT = h;
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rotation = 0;
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cursor_y = cursor_x = 0;
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textsize = 1;
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textcolor = textbgcolor = 0xFFFF;
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wrap = true;
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}
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/*
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*函数名称： drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color)
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*函数功能： draw a circle outline
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*函数参数： int16_t x0, int16_t y0, int16_t r, uint16_t color -- X,Y中心点 R半径
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*函数返回值：void
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*/
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void HT16K33::drawCircle(int16_t x0, int16_t y0, int16_t r,
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uint16_t color) {
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int16_t f = 1 - r;
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int16_t ddF_x = 1;
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int16_t ddF_y = -2 * r;
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int16_t x = 0;
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int16_t y = r;
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drawPixel(x0, y0+r, color);
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drawPixel(x0, y0-r, color);
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drawPixel(x0+r, y0, color);
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drawPixel(x0-r, y0, color);
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while (x<y) {
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if (f >= 0) {
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y--;
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ddF_y += 2;
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f += ddF_y;
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}
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x++;
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ddF_x += 2;
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f += ddF_x;
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drawPixel(x0 + x, y0 + y, color);
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drawPixel(x0 - x, y0 + y, color);
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drawPixel(x0 + x, y0 - y, color);
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drawPixel(x0 - x, y0 - y, color);
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drawPixel(x0 + y, y0 + x, color);
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drawPixel(x0 - y, y0 + x, color);
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drawPixel(x0 + y, y0 - x, color);
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drawPixel(x0 - y, y0 - x, color);
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}
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}
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/*
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*函数名称： drawCircleHelper( int16_t x0, int16_t y0,int16_t r, uint8_t cornername, uint16_t color)
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*函数功能： drawCircleHelper 选择画圆的四条边
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*函数参数： cornername == 1 画第一条边 == 2 画第二条边 == 4画第三条边 == 8画第四条边
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*函数返回值：void
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*/
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void HT16K33::drawCircleHelper( int16_t x0, int16_t y0,
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int16_t r, uint8_t cornername, uint16_t color) {
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int16_t f = 1 - r;
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int16_t ddF_x = 1;
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int16_t ddF_y = -2 * r;
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int16_t x = 0;
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int16_t y = r;
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while (x<y) {
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if (f >= 0) {
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y--;
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ddF_y += 2;
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f += ddF_y;
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}
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x++;
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ddF_x += 2;
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f += ddF_x;
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if (cornername & 0x4) {
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drawPixel(x0 + x, y0 + y, color);
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drawPixel(x0 + y, y0 + x, color);
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}
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if (cornername & 0x2) {
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drawPixel(x0 + x, y0 - y, color);
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drawPixel(x0 + y, y0 - x, color);
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}
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if (cornername & 0x8) {
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drawPixel(x0 - y, y0 + x, color);
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drawPixel(x0 - x, y0 + y, color);
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}
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if (cornername & 0x1) {
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drawPixel(x0 - y, y0 - x, color);
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drawPixel(x0 - x, y0 - y, color);
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}
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}
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}
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/*
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*函数名称： fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color)
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*函数功能： 画一个满○
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*函数参数： int16_t x0, int16_t y0, int16_t r, uint16_t color -- X,Y中心点 R半径
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*函数返回值：void
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*/
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void HT16K33::fillCircle(int16_t x0, int16_t y0, int16_t r,
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uint16_t color) {
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drawFastVLine(x0, y0-r, 2*r+1, color);
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fillCircleHelper(x0, y0, r, 3, 0, color);
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}
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/*
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*函数名称： fillCircle(int16_t x0, int16_t y0, int16_t r, uint8_t cornername,uint16_t color)
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*函数功能： 画一个满○
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*函数参数： cornername ==1右半圆 == 2左半圆 delta 线长度
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*函数返回值：void
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*/
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void HT16K33::fillCircleHelper(int16_t x0, int16_t y0, int16_t r,
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uint8_t cornername, int16_t delta, uint16_t color) {
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int16_t f = 1 - r;
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int16_t ddF_x = 1;
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int16_t ddF_y = -2 * r;
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int16_t x = 0;
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int16_t y = r;
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while (x<y) {
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if (f >= 0) {
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y--;
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ddF_y += 2;
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f += ddF_y;
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}
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x++;
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ddF_x += 2;
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f += ddF_x;
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if (cornername & 0x1) {
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drawFastVLine(x0+x, y0-y, 2*y+1+delta, color);
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drawFastVLine(x0+y, y0-x, 2*x+1+delta, color);
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}
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if (cornername & 0x2) {
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drawFastVLine(x0-x, y0-y, 2*y+1+delta, color);
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drawFastVLine(x0-y, y0-x, 2*x+1+delta, color);
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}
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}
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}
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/*
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*函数名称： drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color)
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*函数功能： 划线 --两点确定一条直线
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*函数参数： int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t colo 直线的两点 bresenham's algorithm - thx wikpedia
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*函数返回值：void
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*/
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void HT16K33::drawLine(int16_t x0, int16_t y0,
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int16_t x1, int16_t y1,
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uint16_t color) {
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int16_t steep = abs(y1 - y0) > abs(x1 - x0);
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if (steep) {
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swap(x0, y0);
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swap(x1, y1);
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}
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if (x0 > x1) {
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swap(x0, x1);
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swap(y0, y1);
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}
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int16_t dx, dy;
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dx = x1 - x0;
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dy = abs(y1 - y0);
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int16_t err = dx / 2;
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int16_t ystep;
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if (y0 < y1) {
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ystep = 1;
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} else {
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ystep = -1;
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}
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for (; x0<=x1; x0++) {
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if (steep) {
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drawPixel(y0, x0, color);
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} else {
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drawPixel(x0, y0, color);
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}
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err -= dy;
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if (err < 0) {
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y0 += ystep;
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err += dx;
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}
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}
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}
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/*
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*函数名称： drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color)
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*函数功能： 画一个矩形
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*函数参数： 矩形的起点-宽和高
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*函数返回值：void
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*/
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void HT16K33::drawRect(int16_t x, int16_t y,
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int16_t w, int16_t h,
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uint16_t color) {
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drawFastHLine(x, y, w, color);
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drawFastHLine(x, y+h-1, w, color);
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drawFastVLine(x, y, h, color);
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drawFastVLine(x+w-1, y, h, color);
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}
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/*
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*函数名称： drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color)
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*函数功能： 快速垂直方向划线
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*函数参数： x,y起始点h高度
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*函数返回值：void
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*/
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void HT16K33::drawFastVLine(int16_t x, int16_t y,
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int16_t h, uint16_t color) {
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// stupidest version - update in subclasses if desired!
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drawLine(x, y, x, y+h-1, color);
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}
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/*
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*函数名称： drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color)
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*函数功能： 快速水平方向划线
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*函数参数： x,y起始点w宽度
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*函数返回值：void
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*/
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void HT16K33::drawFastHLine(int16_t x, int16_t y,
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int16_t w, uint16_t color) {
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// stupidest version - update in subclasses if desired!
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drawLine(x, y, x+w-1, y, color);
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}
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/*
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*函数名称： illRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color)
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*函数功能： 画满矩形
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*函数参数： x,y起始点w宽度h高度
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*函数返回值：void
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*/
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void HT16K33::fillRect(int16_t x, int16_t y, int16_t w, int16_t h,
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uint16_t color) {
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// stupidest version - update in subclasses if desired!
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for (int16_t i=x; i<x+w; i++) {
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drawFastVLine(i, y, h, color); /*X变化h高度固定*/
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}
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}
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/*
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*函数名称： fillScreen(uint16_t color)
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*函数功能： 画屏填充
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*函数参数： color 颜色
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*函数返回值：void
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*/
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void HT16K33::fillScreen(uint16_t color) {
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fillRect(0, 0, _width, _height, color);
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}
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/*
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*函数名称： fillScreen(uint16_t color)
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*函数功能： 画一个椭圆
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*函数参数： color 颜色
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*函数返回值：void
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*/
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void HT16K33::drawRoundRect(int16_t x, int16_t y, int16_t w,
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int16_t h, int16_t r, uint16_t color) {
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// smarter version
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drawFastHLine(x+r , y , w-2*r, color); // Top
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drawFastHLine(x+r , y+h-1, w-2*r, color); // Bottom
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drawFastVLine( x , y+r , h-2*r, color); // Left
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drawFastVLine( x+w-1, y+r , h-2*r, color); // Right
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// draw four corners
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drawCircleHelper(x+r , y+r , r, 1, color);
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drawCircleHelper(x+w-r-1, y+r , r, 2, color);
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drawCircleHelper(x+w-r-1, y+h-r-1, r, 4, color);
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drawCircleHelper(x+r , y+h-r-1, r, 8, color);
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}
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/*
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*函数名称： fillRoundRect(int16_t x, int16_t y, int16_t w,int16_t h, int16_t r, uint16_t color)
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*函数功能： 画一个满椭圆
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*函数参数： color 颜色 r椭圆的弧度
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*函数返回值：void
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*/
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void HT16K33::fillRoundRect(int16_t x, int16_t y, int16_t w,
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int16_t h, int16_t r, uint16_t color) {
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// smarter version
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fillRect(x+r, y, w-2*r, h, color);
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// draw four corners
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fillCircleHelper(x+w-r-1, y+r, r, 1, h-2*r-1, color);
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fillCircleHelper(x+r , y+r, r, 2, h-2*r-1, color);
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}
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/*
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*函数名称： fillRoundRect(int16_t x, int16_t y, int16_t w,int16_t h, int16_t r, uint16_t color)
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*函数功能： 画一个三角形
|
||
*函数参数： 三角形由三个点确定 画三条线
|
||
*函数返回值：void
|
||
*/
|
||
void HT16K33::drawTriangle(int16_t x0, int16_t y0,
|
||
int16_t x1, int16_t y1,
|
||
int16_t x2, int16_t y2, uint16_t color) {
|
||
drawLine(x0, y0, x1, y1, color);
|
||
drawLine(x1, y1, x2, y2, color);
|
||
drawLine(x2, y2, x0, y0, color);
|
||
}
|
||
|
||
/*
|
||
*函数名称： fillRoundRect(int16_t x, int16_t y, int16_t w,int16_t h, int16_t r, uint16_t color)
|
||
*函数功能： 画一个满三角形
|
||
*函数参数： 三角形由三个点确定
|
||
*函数返回值：void
|
||
*/
|
||
void HT16K33::fillTriangle ( int16_t x0, int16_t y0,
|
||
int16_t x1, int16_t y1,
|
||
int16_t x2, int16_t y2, uint16_t color) {
|
||
|
||
int16_t a, b, y, last;
|
||
|
||
// Sort coordinates by Y order (y2 >= y1 >= y0)
|
||
if (y0 > y1) {
|
||
swap(y0, y1); swap(x0, x1);
|
||
}
|
||
if (y1 > y2) {
|
||
swap(y2, y1); swap(x2, x1);
|
||
}
|
||
if (y0 > y1) {
|
||
swap(y0, y1); swap(x0, x1);
|
||
}
|
||
|
||
if(y0 == y2) { // Handle awkward all-on-same-line case as its own thing
|
||
a = b = x0;
|
||
if(x1 < a) a = x1;
|
||
else if(x1 > b) b = x1;
|
||
if(x2 < a) a = x2;
|
||
else if(x2 > b) b = x2;
|
||
drawFastHLine(a, y0, b-a+1, color);
|
||
return;
|
||
}
|
||
|
||
int16_t
|
||
dx01 = x1 - x0,
|
||
dy01 = y1 - y0,
|
||
dx02 = x2 - x0,
|
||
dy02 = y2 - y0,
|
||
dx12 = x2 - x1,
|
||
dy12 = y2 - y1,
|
||
sa = 0,
|
||
sb = 0;
|
||
|
||
// For upper part of triangle, find scanline crossings for segments
|
||
// 0-1 and 0-2. If y1=y2 (flat-bottomed triangle), the scanline y1
|
||
// is included here (and second loop will be skipped, avoiding a /0
|
||
// error there), otherwise scanline y1 is skipped here and handled
|
||
// in the second loop...which also avoids a /0 error here if y0=y1
|
||
// (flat-topped triangle).
|
||
if(y1 == y2) last = y1; // Include y1 scanline
|
||
else last = y1-1; // Skip it
|
||
|
||
for(y=y0; y<=last; y++) {
|
||
a = x0 + sa / dy01;
|
||
b = x0 + sb / dy02;
|
||
sa += dx01;
|
||
sb += dx02;
|
||
/* longhand:
|
||
a = x0 + (x1 - x0) * (y - y0) / (y1 - y0);
|
||
b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
|
||
*/
|
||
if(a > b) swap(a,b);
|
||
drawFastHLine(a, y, b-a+1, color);
|
||
}
|
||
|
||
// For lower part of triangle, find scanline crossings for segments
|
||
// 0-2 and 1-2. This loop is skipped if y1=y2.
|
||
sa = dx12 * (y - y1);
|
||
sb = dx02 * (y - y0);
|
||
for(; y<=y2; y++) {
|
||
a = x1 + sa / dy12;
|
||
b = x0 + sb / dy02;
|
||
sa += dx12;
|
||
sb += dx02;
|
||
/* longhand:
|
||
a = x1 + (x2 - x1) * (y - y1) / (y2 - y1);
|
||
b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
|
||
*/
|
||
if(a > b) swap(a,b);
|
||
drawFastHLine(a, y, b-a+1, color);
|
||
}
|
||
}
|
||
|
||
/*
|
||
*函数名称： drawStr(String s)
|
||
*函数功能： 写一个字符串
|
||
*函数参数： S
|
||
*函数返回值：void
|
||
*/
|
||
void HT16K33::drawStr(String s){
|
||
int a = s.length();
|
||
setTextSize(1);
|
||
setTextWrap(false); // we dont want text to wrap so it scrolls nicely
|
||
setTextColor(LED_ON);
|
||
if(a==1){
|
||
clear();
|
||
if(hf_flip==1)setCursor(9,0);
|
||
else setCursor(6,0);
|
||
print(s);
|
||
writeDisplay();
|
||
delay(100);
|
||
}
|
||
else if(a==2&&hf_flip!=1){
|
||
clear();
|
||
setCursor(3,0);
|
||
print(s);
|
||
writeDisplay();
|
||
delay(100);
|
||
}
|
||
else{
|
||
for (int8_t x=15; x>=-a*6; x--) {
|
||
clear();
|
||
setCursor(x,0);
|
||
print(s);
|
||
writeDisplay();
|
||
delay(80);
|
||
}}
|
||
}
|
||
|
||
/*
|
||
*函数名称： write(uint8_t c)
|
||
*函数功能： 写一个字节
|
||
*函数参数： C
|
||
*函数返回值：size_t
|
||
*/
|
||
size_t HT16K33::write(uint8_t c) {
|
||
if (c == '\n') {
|
||
cursor_y += textsize*8;
|
||
cursor_x = 0;
|
||
} else if (c == '\r') {
|
||
// skip em
|
||
} else {
|
||
drawChar(cursor_x, cursor_y, c, textcolor, textbgcolor, textsize);
|
||
cursor_x += textsize*6;
|
||
if (wrap && (cursor_x > (_width - textsize*6))) {
|
||
cursor_y += textsize*8;
|
||
cursor_x = 0;
|
||
}
|
||
}
|
||
#if ARDUINO >= 100
|
||
return 1;
|
||
#endif
|
||
}
|
||
|
||
|
||
/*
|
||
*函数名称： drawChar(int16_t x, int16_t y, unsigned char c,uint16_t color, uint16_t bg, uint8_t size)
|
||
*函数功能： draw a character
|
||
*函数参数： C
|
||
*函数返回值：void
|
||
*/
|
||
void HT16K33::drawChar(int16_t x, int16_t y, unsigned char c,
|
||
uint16_t color, uint16_t bg, uint8_t size) {
|
||
|
||
if((x >= _width) || // Clip right
|
||
(y >= _height) || // Clip bottom
|
||
((x + 5 * size - 1) < 0) || // Clip left
|
||
((y + 8 * size - 1) < 0)) // Clip top
|
||
return;
|
||
|
||
for (int8_t i=0; i<6; i++ ) {
|
||
uint8_t line;
|
||
if (i == 5)
|
||
line = 0x0;
|
||
else
|
||
line = pgm_read_byte(font+(c*5)+i);
|
||
for (int8_t j = 7; j>=0; j--) {
|
||
if (line & 0x1) {
|
||
if (size == 1) // default size
|
||
drawPixel(x+i, y+j, color);
|
||
else { // big size
|
||
fillRect(x+(i*size), y+(j*size), size, size, color);
|
||
}
|
||
} else if (bg != color) {
|
||
if (size == 1) // default size
|
||
drawPixel(x+i, y+j, bg);
|
||
else { // big size
|
||
fillRect(x+i*size, y+j*size, size, size, bg);
|
||
}
|
||
}
|
||
line >>= 1;
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
*函数名称： setCursor(int16_t x, int16_t y)
|
||
*函数功能： 设置
|
||
*函数参数： x,y
|
||
*函数返回值：void
|
||
*/
|
||
void HT16K33::setCursor(int16_t x, int16_t y) {
|
||
cursor_x = x;
|
||
cursor_y = y;
|
||
}
|
||
|
||
|
||
void HT16K33::setTextSize(uint8_t s) {
|
||
textsize = (s > 0) ? s : 1;
|
||
}
|
||
|
||
void HT16K33::setTextColor(uint16_t c) {
|
||
textcolor = c;
|
||
textbgcolor = c;
|
||
// for 'transparent' background, we'll set the bg
|
||
// to the same as fg instead of using a flag
|
||
}
|
||
|
||
void HT16K33::setTextColor(uint16_t c, uint16_t b) {
|
||
textcolor = c;
|
||
textbgcolor = b;
|
||
}
|
||
|
||
void HT16K33::setTextWrap(boolean w) {
|
||
wrap = w;
|
||
}
|
||
|
||
uint8_t HT16K33::getRotation(void) {
|
||
rotation %= 4;
|
||
return rotation;
|
||
}
|
||
|
||
void HT16K33::setRotation(uint8_t x) {
|
||
x %= 4; // cant be higher than 3
|
||
rotation = x;
|
||
switch (x) {
|
||
case 0:
|
||
case 2:
|
||
_width = WIDTH;
|
||
_height = HEIGHT;
|
||
break;
|
||
case 1:
|
||
case 3:
|
||
_width = HEIGHT;
|
||
_height = WIDTH;
|
||
break;
|
||
}
|
||
}
|
||
|
||
void HT16K33::invertDisplay(boolean i) {
|
||
// do nothing, can be subclassed
|
||
}
|
||
|
||
// return the size of the display which depends on the rotation!
|
||
int16_t HT16K33::width(void) {
|
||
return _width;
|
||
}
|
||
|
||
int16_t HT16K33::height(void) {
|
||
return _height;
|
||
}
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|