Library for 1.8 inch 160*180 TFT Display. Nice fonts in different formats.
ST7735.cpp
- Committer:
- rolo644u
- Date:
- 2015-08-15
- Revision:
- 0:3015b613b20d
- Child:
- 1:6a6d8d2b19f1
File content as of revision 0:3015b613b20d:
#include "mbed.h" #include "ST7735.h" #ifdef LOAD_FONT2 #include "Font16.h" #endif #ifdef LOAD_FONT4 #include "Font32.h" #endif #ifdef LOAD_FONT6 #include "Font64.h" #endif #ifdef LOAD_FONT7 #include "Font7s.h" #endif #ifdef LOAD_FONT8 #include "Font72.h" #endif ST7735::ST7735(PinName cePin, PinName dcPin, PinName mosiPin, PinName sclkPin) { spi = new SPI(mosiPin, NC, sclkPin); // create new SPI instance and initialise initSPI(); // set up other pins as required ce = new DigitalOut(cePin,1); dc = new DigitalOut(dcPin,0); } // function to initialise SPI peripheral void ST7735::initSPI() { spi->format(8,0); // 8 bits, Mode 0 spi->frequency(12000000); // SPI clock frequency //spi->frequency(4000000); // SPI clock frequency //spi->frequency(22000000); // SPI clock frequency 20.83 Mhz } // Write data word void ST7735::writecommand(char c) { dc->write(0); ce->write(0); spi->write(c); ce->write(1); } // Write command word void ST7735::writedata(char c) { dc->write(1); ce->write(0); spi->write(c); ce->write(1); } // Rather than a bazillion writecommand() and writedata() calls, screen // initialization commands and arguments are organized in these tables // stored in PROGMEM. The table may look bulky, but that's mostly the // formatting -- storage-wise this is hundreds of bytes more compact // than the equivalent code. Companion function follows. #define DELAY 0x80 static const uint8_t Bcmd[] = { // Initialization commands for 7735B screens 18, // 18 commands in list: ST7735_SWRESET, DELAY, // 1: Software reset, no args, w/delay 50, // 50 ms delay ST7735_SLPOUT , DELAY, // 2: Out of sleep mode, no args, w/delay 255, // 255 = 500 ms delay ST7735_COLMOD , 1+DELAY, // 3: Set color mode, 1 arg + delay: 0x05, // 16-bit color 10, // 10 ms delay ST7735_FRMCTR1, 3+DELAY, // 4: Frame rate control, 3 args + delay: 0x00, // fastest refresh 0x06, // 6 lines front porch 0x03, // 3 lines back porch 10, // 10 ms delay ST7735_MADCTL , 1 , // 5: Memory access ctrl (directions), 1 arg: 0x08, // Row addr/col addr, bottom to top refresh ST7735_DISSET5, 2 , // 6: Display settings #5, 2 args, no delay: 0x15, // 1 clk cycle nonoverlap, 2 cycle gate // rise, 3 cycle osc equalize 0x02, // Fix on VTL ST7735_INVCTR , 1 , // 7: Display inversion control, 1 arg: 0x0, // Line inversion ST7735_PWCTR1 , 2+DELAY, // 8: Power control, 2 args + delay: 0x02, // GVDD = 4.7V 0x70, // 1.0uA 10, // 10 ms delay ST7735_PWCTR2 , 1 , // 9: Power control, 1 arg, no delay: 0x05, // VGH = 14.7V, VGL = -7.35V ST7735_PWCTR3 , 2 , // 10: Power control, 2 args, no delay: 0x01, // Opamp current small 0x02, // Boost frequency ST7735_VMCTR1 , 2+DELAY, // 11: Power control, 2 args + delay: 0x3C, // VCOMH = 4V 0x38, // VCOML = -1.1V 10, // 10 ms delay ST7735_PWCTR6 , 2 , // 12: Power control, 2 args, no delay: 0x11, 0x15, ST7735_GMCTRP1,16 , // 13: Magical unicorn dust, 16 args, no delay: 0x09, 0x16, 0x09, 0x20, // (seriously though, not sure what 0x21, 0x1B, 0x13, 0x19, // these config values represent) 0x17, 0x15, 0x1E, 0x2B, 0x04, 0x05, 0x02, 0x0E, ST7735_GMCTRN1,16+DELAY, // 14: Sparkles and rainbows, 16 args + delay: 0x0B, 0x14, 0x08, 0x1E, // (ditto) 0x22, 0x1D, 0x18, 0x1E, 0x1B, 0x1A, 0x24, 0x2B, 0x06, 0x06, 0x02, 0x0F, 10, // 10 ms delay ST7735_CASET , 4 , // 15: Column addr set, 4 args, no delay: 0x00, 0x02, // XSTART = 2 0x00, 0x81, // XEND = 129 ST7735_RASET , 4 , // 16: Row addr set, 4 args, no delay: 0x00, 0x02, // XSTART = 1 0x00, 0x81, // XEND = 160 ST7735_NORON , DELAY, // 17: Normal display on, no args, w/delay 10, // 10 ms delay ST7735_DISPON , DELAY, // 18: Main screen turn on, no args, w/delay 255 }, // 255 = 500 ms delay Rcmd1[] = { // Init for 7735R, part 1 (red or green tab) 15, // 15 commands in list: ST7735_SWRESET, DELAY, // 1: Software reset, 0 args, w/delay 150, // 150 ms delay ST7735_SLPOUT , DELAY, // 2: Out of sleep mode, 0 args, w/delay 255, // 500 ms delay ST7735_FRMCTR1, 3 , // 3: Frame rate ctrl - normal mode, 3 args: 0x01, 0x2C, 0x2D, // Rate = fosc/(1x2+40) * (LINE+2C+2D) ST7735_FRMCTR2, 3 , // 4: Frame rate control - idle mode, 3 args: 0x01, 0x2C, 0x2D, // Rate = fosc/(1x2+40) * (LINE+2C+2D) ST7735_FRMCTR3, 6 , // 5: Frame rate ctrl - partial mode, 6 args: 0x01, 0x2C, 0x2D, // Dot inversion mode 0x01, 0x2C, 0x2D, // Line inversion mode ST7735_INVCTR , 1 , // 6: Display inversion ctrl, 1 arg, no delay: 0x07, // No inversion ST7735_PWCTR1 , 3 , // 7: Power control, 3 args, no delay: 0xA2, 0x02, // -4.6V 0x84, // AUTO mode ST7735_PWCTR2 , 1 , // 8: Power control, 1 arg, no delay: 0xC5, // VGH25 = 2.4C VGSEL = -10 VGH = 3 * AVDD ST7735_PWCTR3 , 2 , // 9: Power control, 2 args, no delay: 0x0A, // Opamp current small 0x00, // Boost frequency ST7735_PWCTR4 , 2 , // 10: Power control, 2 args, no delay: 0x8A, // BCLK/2, Opamp current small & Medium low 0x2A, ST7735_PWCTR5 , 2 , // 11: Power control, 2 args, no delay: 0x8A, 0xEE, ST7735_VMCTR1 , 1 , // 12: Power control, 1 arg, no delay: 0x0E, ST7735_INVOFF , 0 , // 13: Don't invert display, no args, no delay ST7735_MADCTL , 1 , // 14: Memory access control (directions), 1 arg: 0xC8, // row addr/col addr, bottom to top refresh ST7735_COLMOD , 1 , // 15: set color mode, 1 arg, no delay: 0x05 }, // 16-bit color Rcmd2green[] = { // Init for 7735R, part 2 (green tab only) 2, // 2 commands in list: ST7735_CASET , 4 , // 1: Column addr set, 4 args, no delay: 0x00, 0x02, // XSTART = 0 0x00, 0x7F+0x02, // XEND = 127 ST7735_RASET , 4 , // 2: Row addr set, 4 args, no delay: 0x00, 0x01, // XSTART = 0 0x00, 0x9F+0x01 }, // XEND = 159 Rcmd2red[] = { // Init for 7735R, part 2 (red tab only) 2, // 2 commands in list: ST7735_CASET , 4 , // 1: Column addr set, 4 args, no delay: 0x00, 0x00, // XSTART = 0 0x00, 0x7F, // XEND = 127 ST7735_RASET , 4 , // 2: Row addr set, 4 args, no delay: 0x00, 0x00, // XSTART = 0 0x00, 0x9F }, // XEND = 159 Rcmd3[] = { // Init for 7735R, part 3 (red or green tab) 4, // 4 commands in list: ST7735_GMCTRP1, 16 , // 1: Magical unicorn dust, 16 args, no delay: 0x02, 0x1c, 0x07, 0x12, 0x37, 0x32, 0x29, 0x2d, 0x29, 0x25, 0x2B, 0x39, 0x00, 0x01, 0x03, 0x10, ST7735_GMCTRN1, 16 , // 2: Sparkles and rainbows, 16 args, no delay: 0x03, 0x1d, 0x07, 0x06, 0x2E, 0x2C, 0x29, 0x2D, 0x2E, 0x2E, 0x37, 0x3F, 0x00, 0x00, 0x02, 0x10, ST7735_NORON , DELAY, // 3: Normal display on, no args, w/delay 10, // 10 ms delay ST7735_DISPON , DELAY, // 4: Main screen turn on, no args w/delay 100 }; // 100 ms delay // Companion code to the above tables. Reads and issues // a series of LCD commands stored in PROGMEM byte array. void ST7735::commandList(const uint8_t *addr){ uint8_t numCommands, numArgs; uint16_t ms; numCommands = pgm_read_byte(addr++); // Number of commands to follow while(numCommands--) { // For each command... writecommand(pgm_read_byte(addr++)); // Read, issue command numArgs = pgm_read_byte(addr++); // Number of args to follow ms = numArgs & DELAY; // If hibit set, delay follows args numArgs &= ~DELAY; // Mask out delay bit while(numArgs--) { // For each argument... writedata(pgm_read_byte(addr++)); // Read, issue argument } if(ms) { ms = pgm_read_byte(addr++); // Read post-command delay time (ms) if(ms == 255) ms = 500; // If 255, delay for 500 ms wait_ms(ms); } } } // Initialization code common to both 'B' and 'R' type displays void ST7735::commonInit(const uint8_t *cmdList){ wait_ms(50); // Wait for reset to be stable after power-up colstart = rowstart = 0; // May be overridden in init func if(cmdList) commandList(cmdList); } // Initialization for ST7735B screens void ST7735::initB() { commonInit(Bcmd); } // Initialization for ST7735R screens (green or red tabs) void ST7735::initR(uint8_t options) { commonInit(Rcmd1); if(options == INITR_GREENTAB) { commandList(Rcmd2green); colstart = 2; rowstart = 1; } else { // colstart, rowstart left at default '0' values commandList(Rcmd2red); } commandList(Rcmd3); // if black, change MADCTL color filter if (options == INITR_BLACKTAB) { writecommand(ST7735_MADCTL); writedata(0xC0); } tabcolor = options; } void ST7735::setRotation(uint8_t m) { writecommand(ST7735_MADCTL); rotation = m % 4; // can't be higher than 3 switch (rotation) { case 0: if (tabcolor == INITR_BLACKTAB) { writedata(MADCTL_MX | MADCTL_MY | MADCTL_RGB); } else { writedata(MADCTL_MX | MADCTL_MY | MADCTL_BGR); } _width = ST7735_TFTWIDTH; _height = ST7735_TFTHEIGHT; break; case 1: if (tabcolor == INITR_BLACKTAB) { writedata(MADCTL_MY | MADCTL_MV | MADCTL_RGB); } else { writedata(MADCTL_MY | MADCTL_MV | MADCTL_BGR); } _width = ST7735_TFTHEIGHT; _height = ST7735_TFTWIDTH; break; case 2: if (tabcolor == INITR_BLACKTAB) { writedata(MADCTL_RGB); } else { writedata(MADCTL_BGR); } _width = ST7735_TFTWIDTH; _height = ST7735_TFTHEIGHT; break; case 3: if (tabcolor == INITR_BLACKTAB) { writedata(MADCTL_MX | MADCTL_MV | MADCTL_RGB); } else { writedata(MADCTL_MX | MADCTL_MV | MADCTL_BGR); } _width = ST7735_TFTHEIGHT; _height = ST7735_TFTWIDTH; break; } } void ST7735::fillScreen(uint16_t color) { fillRect(0, 0, _width, _height, color); } void ST7735::pushColor(uint16_t color) { dc->write(1); ce->write(0); spi->write(color >> 8); spi->write(color); ce->write(1); } // fill a rectangle void ST7735::fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color) { // rudimentary clipping (drawChar w/big text requires this) if((x >= _width) || (y >= _height)) return; if((x + w - 1) >= _width) w = _width - x; if((y + h - 1) >= _height) h = _height - y; setAddrWindow(x, y, x+w-1, y+h-1); uint8_t hi = color >> 8, lo = color; dc->write(1); ce->write(0); for(y=h; y>0; y--) { for(x=w; x>0; x--) { spi->write(hi); spi->write(lo); } } ce->write(1); } void ST7735::invertDisplay(bool i) { writecommand(i ? ST7735_INVON : ST7735_INVOFF); } void ST7735::drawPixel(int16_t x, int16_t y, uint16_t color) { if((x < 0) ||(x >= _width) || (y < 0) || (y >= _height)) return; setAddrWindow(x,y,x+1,y+1); dc->write(1); ce->write(0); spi->write(color >> 8); spi->write(color); ce->write(1); } void ST7735::drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color) { // Rudimentary clipping if((x >= _width) || (y >= _height)) return; if((y+h-1) >= _height) h = _height-y; setAddrWindow(x, y, x, y+h-1); uint8_t hi = color >> 8, lo = color; dc->write(1); ce->write(0); while (h--) { spi->write(hi); spi->write(lo); } ce->write(1); } void ST7735::drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color) { // Rudimentary clipping if((x >= _width) || (y >= _height)) return; if((x+w-1) >= _width) w = _width-x; setAddrWindow(x, y, x+w-1, y); uint8_t hi = color >> 8, lo = color; dc->write(1);; ce->write(0);; while (w--) { spi->write(hi); spi->write(lo); } ce->write(1); } // Pass 8-bit (each) R,G,B, get back 16-bit packed color uint16_t ST7735::Color565(uint8_t r, uint8_t g, uint8_t b) { return ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3); } // Bresenham's algorithm - thx wikpedia void ST7735::drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color) { int16_t steep = abs(y1 - y0) > abs(x1 - x0); if (steep) { swap(x0, y0); swap(x1, y1); } if (x0 > x1) { swap(x0, x1); swap(y0, y1); } int16_t dx, dy; dx = x1 - x0; dy = abs(y1 - y0); int16_t err = dx / 2; int16_t ystep; if (y0 < y1) { ystep = 1; } else { ystep = -1; } for (; x0<=x1; x0++) { if (steep) { drawPixel(y0, x0, color); } else { drawPixel(x0, y0, color); } err -= dy; if (err < 0) { y0 += ystep; err += dx; } } } // Draw a rectangle void ST7735::drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color) { drawFastHLine(x, y, w, color); drawFastHLine(x, y+h-1, w, color); drawFastVLine(x, y, h, color); drawFastVLine(x+w-1, y, h, color); } // Draw a circle outline void ST7735::drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color) { int16_t f = 1 - r; int16_t ddF_x = 1; int16_t ddF_y = -2 * r; int16_t x = 0; int16_t y = r; drawPixel(x0 , y0+r, color); drawPixel(x0 , y0-r, color); drawPixel(x0+r, y0 , color); drawPixel(x0-r, y0 , color); while (x<y) { if (f >= 0) { y--; ddF_y += 2; f += ddF_y; } x++; ddF_x += 2; f += ddF_x; drawPixel(x0 + x, y0 + y, color); drawPixel(x0 - x, y0 + y, color); drawPixel(x0 + x, y0 - y, color); drawPixel(x0 - x, y0 - y, color); drawPixel(x0 + y, y0 + x, color); drawPixel(x0 - y, y0 + x, color); drawPixel(x0 + y, y0 - x, color); drawPixel(x0 - y, y0 - x, color); } } void ST7735::drawCircleHelper( int16_t x0, int16_t y0, int16_t r, uint8_t cornername, uint16_t color) { int16_t f = 1 - r; int16_t ddF_x = 1; int16_t ddF_y = -2 * r; int16_t x = 0; int16_t y = r; while (x<y) { if (f >= 0) { y--; ddF_y += 2; f += ddF_y; } x++; ddF_x += 2; f += ddF_x; if (cornername & 0x4) { drawPixel(x0 + x, y0 + y, color); drawPixel(x0 + y, y0 + x, color); } if (cornername & 0x2) { drawPixel(x0 + x, y0 - y, color); drawPixel(x0 + y, y0 - x, color); } if (cornername & 0x8) { drawPixel(x0 - y, y0 + x, color); drawPixel(x0 - x, y0 + y, color); } if (cornername & 0x1) { drawPixel(x0 - y, y0 - x, color); drawPixel(x0 - x, y0 - y, color); } } } void ST7735::fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color) { drawFastVLine(x0, y0-r, 2*r+1, color); fillCircleHelper(x0, y0, r, 3, 0, color); } // Used to do circles and roundrects void ST7735::fillCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, int16_t delta, uint16_t color) { int16_t f = 1 - r; int16_t ddF_x = 1; int16_t ddF_y = -2 * r; int16_t x = 0; int16_t y = r; while (x<y) { if (f >= 0) { y--; ddF_y += 2; f += ddF_y; } x++; ddF_x += 2; f += ddF_x; if (cornername & 0x1) { drawFastVLine(x0+x, y0-y, 2*y+1+delta, color); drawFastVLine(x0+y, y0-x, 2*x+1+delta, color); } if (cornername & 0x2) { drawFastVLine(x0-x, y0-y, 2*y+1+delta, color); drawFastVLine(x0-y, y0-x, 2*x+1+delta, color); } } } // Draw a triangle void ST7735::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); } // Fill a triangle void ST7735::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); } } // Draw a rounded rectangle void ST7735::drawRoundRect(int16_t x, int16_t y, int16_t w, int16_t h, int16_t r, uint16_t color) { // smarter version drawFastHLine(x+r , y , w-2*r, color); // Top drawFastHLine(x+r , y+h-1, w-2*r, color); // Bottom drawFastVLine(x , y+r , h-2*r, color); // Left drawFastVLine(x+w-1, y+r , h-2*r, color); // Right // draw four corners drawCircleHelper(x+r , y+r , r, 1, color); drawCircleHelper(x+w-r-1, y+r , r, 2, color); drawCircleHelper(x+w-r-1, y+h-r-1, r, 4, color); drawCircleHelper(x+r , y+h-r-1, r, 8, color); } // Fill a rounded rectangle void ST7735::fillRoundRect(int16_t x, int16_t y, int16_t w, int16_t h, int16_t r, uint16_t color) { // smarter version fillRect(x+r, y, w-2*r, h, color); // draw four corners fillCircleHelper(x+w-r-1, y+r, r, 1, h-2*r-1, color); fillCircleHelper(x+r , y+r, r, 2, h-2*r-1, color); } void ST7735::setCursor(int16_t x, int16_t y) { cursor_x = x; cursor_y = y; } void ST7735::setTextSize(uint8_t s) { textsize = (s > 0) ? s : 1; } void ST7735::setTextColor(uint16_t c) { // For 'transparent' background, we'll set the bg // to the same as fg instead of using a flag textcolor = textbgcolor = c; } void ST7735::setTextColor(uint16_t c, uint16_t b) { textcolor = c; textbgcolor = b; } void ST7735::setTextWrap(bool w) { wrap = w; } uint8_t ST7735::getRotation(void) { return rotation; } void ST7735::drawBitmap(int16_t x, int16_t y, const uint8_t *bitmap, int16_t w, int16_t h, uint16_t color) { int16_t i, j, byteWidth = (w + 7) / 8; for(j=0; j<h; j++) { for(i=0; i<w; i++ ) { if(pgm_read_byte(bitmap + j * byteWidth + i / 8) & (128 >> (i & 7))) { drawPixel(x+i, y+j, color); } } } } /*************************************************************************************** ** Function name: drawUnicode ** Descriptions: draw a unicode ***************************************************************************************/ int ST7735::drawUnicode(unsigned int uniCode, int x, int y, int font) { if (font) uniCode -= 32; unsigned int width = 0; unsigned int height = 0; unsigned int flash_address = 0; int8_t gap = 0; // if (size == 1) { // flash_address = pgm_read_word(&chrtbl_f8[uniCode]); // width = pgm_read_byte(widtbl_f8+uniCode); // height = chr_hgt_f8; // gap = 1; // } #ifdef LOAD_FONT2 if (font == 2) { flash_address = pgm_read_word(&chrtbl_f16[uniCode]); width = pgm_read_byte(widtbl_f16+uniCode); height = chr_hgt_f16; gap = 1; } #endif // if (font == 3) { // flash_address = pgm_read_word(&chrtbl_f24[uniCode]); // width = pgm_read_byte(widtbl_f24+uniCode); // height = chr_hgt_f24; // gap = 0; // } #ifdef LOAD_FONT4 if (font == 4) { flash_address = pgm_read_word(&chrtbl_f32[uniCode]); width = pgm_read_byte(widtbl_f32+uniCode); height = chr_hgt_f32; gap = -3; } #endif // if (font == 5) { // flash_address = pgm_read_word(&chrtbl_f48[uniCode]); // width = pgm_read_byte(widtbl_f48+uniCode); // height = chr_hgt_f48; // gap = -3; // } #ifdef LOAD_FONT6 if (font == 6) { flash_address = pgm_read_word(&chrtbl_f64[uniCode]); width = pgm_read_byte(widtbl_f64+uniCode); height = chr_hgt_f64; gap = -3; } #endif #ifdef LOAD_FONT7 if (font == 7) { flash_address = pgm_read_word(&chrtbl_f7s[uniCode]); width = pgm_read_byte(widtbl_f7s+uniCode); height = chr_hgt_f7s; gap = 2; } #endif #ifdef LOAD_FONT8 if (font == 8) { flash_address = pgm_read_word(&chrtbl_f72[uniCode]); width = pgm_read_byte(widtbl_f72+uniCode); height = chr_hgt_f72; gap = 2; } #endif int w = (width+7)/8; int pX = 0; int pY = y; int color = 0; char line = 0; //fillRect(x,pY,width+gap,height,textbgcolor); for(int i=0; i<height; i++) { if (textcolor != textbgcolor) { if (textsize == 1) drawFastHLine(x, pY, width+gap, textbgcolor); else fillRect(x, pY, (width+gap)*textsize, textsize, textbgcolor); } for (int k = 0;k < w; k++) { line = pgm_read_byte(flash_address+w*i+k); if(line) { if (textsize==1){ pX = x + k*8; if(line & 0x80) drawPixel(pX, pY, textcolor); if(line & 0x40) drawPixel(pX+1, pY, textcolor); if(line & 0x20) drawPixel(pX+2, pY, textcolor); if(line & 0x10) drawPixel(pX+3, pY, textcolor); if(line & 0x8) drawPixel(pX+4, pY, textcolor); if(line & 0x4) drawPixel(pX+5, pY, textcolor); if(line & 0x2) drawPixel(pX+6, pY, textcolor); if(line & 0x1) drawPixel(pX+7, pY, textcolor); } else { pX = x + k*8*textsize; if(line & 0x80) fillRect(pX, pY, textsize, textsize, textcolor); if(line & 0x40) fillRect(pX+textsize, pY, textsize, textsize, textcolor); if(line & 0x20) fillRect(pX+2*textsize, pY, textsize, textsize, textcolor); if(line & 0x10) fillRect(pX+3*textsize, pY, textsize, textsize, textcolor); if(line & 0x8) fillRect(pX+4*textsize, pY, textsize, textsize, textcolor); if(line & 0x4) fillRect(pX+5*textsize, pY, textsize, textsize, textcolor); if(line & 0x2) fillRect(pX+6*textsize, pY, textsize, textsize, textcolor); if(line & 0x1) fillRect(pX+7*textsize, pY, textsize, textsize, textcolor); } } } pY+=textsize; } return (width+gap)*textsize; // x + } /*************************************************************************************** ** Function name: drawNumber unsigned with size ** Descriptions: drawNumber ***************************************************************************************/ int ST7735::drawNumber(long long_num,int poX, int poY, int font) { char tmp[10]; if (long_num < 0) sprintf(tmp, "%li", long_num); else sprintf(tmp, "%lu", long_num); return drawString(tmp, poX, poY, font); } /*************************************************************************************** ** Function name: drawChar ** Descriptions: draw char ***************************************************************************************/ int ST7735::drawChar(char c, int x, int y, int font) { return drawUnicode(c, x, y, font); } /*************************************************************************************** ** Function name: drawString ** Descriptions: draw string ***************************************************************************************/ int ST7735::drawString(char *string, int poX, int poY, int font) { int sumX = 0; while(*string) { int xPlus = drawChar(*string, poX, poY, font); sumX += xPlus; *string++; poX += xPlus; /* Move cursor right */ } return sumX; } /*************************************************************************************** ** Function name: drawCentreString ** Descriptions: draw string across centre ***************************************************************************************/ int ST7735::drawCentreString(char *string, int dX, int poY, int font) { int sumX = 0; int len = 0; char *pointer = string; char ascii; while(*pointer) { ascii = *pointer; //if (font==0)len += 1+pgm_read_byte(widtbl_log+ascii); //if (font==1)len += 1+pgm_read_byte(widtbl_f8+ascii-32); #ifdef LOAD_FONT2 if (font==2)len += 1+pgm_read_byte(widtbl_f16+ascii-32); #endif //if (font==3)len += 1+pgm_read_byte(widtbl_f48+ascii-32)/2; #ifdef LOAD_FONT4 if (font==4)len += pgm_read_byte(widtbl_f32+ascii-32)-3; #endif //if (font==5) len += pgm_read_byte(widtbl_f48+ascii-32)-3; #ifdef LOAD_FONT6 if (font==6) len += pgm_read_byte(widtbl_f64+ascii-32)-3; #endif #ifdef LOAD_FONT7 if (font==7) len += pgm_read_byte(widtbl_f7s+ascii-32)+2; #endif #ifdef LOAD_FONT8 if (font==8) len += pgm_read_byte(widtbl_f72+ascii-32)+2; #endif *pointer++; } len = len*textsize; int poX = dX - len/2; if (poX < 0) poX = 0; while(*string) { int xPlus = drawChar(*string, poX, poY, font); sumX += xPlus; *string++; poX += xPlus; /* Move cursor right */ } return sumX; } /*************************************************************************************** ** Function name: drawRightString ** Descriptions: draw string right justified ***************************************************************************************/ int ST7735::drawRightString(char *string, int dX, int poY, int font) { int sumX = 0; int len = 0; char *pointer = string; char ascii; while(*pointer) { ascii = *pointer; //if (font==0)len += 1+pgm_read_byte(widtbl_log+ascii); //if (font==1)len += 1+pgm_read_byte(widtbl_f8+ascii-32); #ifdef LOAD_FONT2 if (font==2)len += 1+pgm_read_byte(widtbl_f16+ascii-32); #endif //if (font==3)len += 1+pgm_read_byte(widtbl_f48+ascii-32)/2; #ifdef LOAD_FONT4 if (font==4)len += pgm_read_byte(widtbl_f32+ascii-32)-3; #endif //if (font==5) len += pgm_read_byte(widtbl_f48+ascii-32)-3; #ifdef LOAD_FONT6 if (font==6) len += pgm_read_byte(widtbl_f64+ascii-32)-3; #endif #ifdef LOAD_FONT7 if (font==7) len += pgm_read_byte(widtbl_f7s+ascii-32)+2; #endif #ifdef LOAD_FONT8 if (font==8) len += pgm_read_byte(widtbl_f72+ascii-32)+2; #endif *pointer++; } len = len*textsize; int poX = dX - len; if (poX < 0) poX = 0; while(*string) { int xPlus = drawChar(*string, poX, poY, font); sumX += xPlus; *string++; poX += xPlus; /* Move cursor right */ } return sumX; } /*************************************************************************************** ** Function name: drawFloat ** Descriptions: drawFloat ***************************************************************************************/ int ST7735::drawFloat(float floatNumber, int decimal, int poX, int poY, int font) { unsigned long temp=0; float decy=0.0; float rounding = 0.5; float eep = 0.000001; int sumX = 0; int xPlus = 0; if(floatNumber-0.0 < eep) // floatNumber < 0 { xPlus = drawChar('-',poX, poY, font); floatNumber = -floatNumber; poX += xPlus; sumX += xPlus; } for (unsigned char i=0; i<decimal; ++i) { rounding /= 10.0; } floatNumber += rounding; temp = (long)floatNumber; xPlus = drawNumber(temp,poX, poY, font); poX += xPlus; sumX += xPlus; if(decimal>0) { xPlus = drawChar('.',poX, poY, font); poX += xPlus; /* Move cursor right */ sumX += xPlus; } else { return sumX; } decy = floatNumber - temp; for(unsigned char i=0; i<decimal; i++) { decy *= 10; /* for the next decimal */ temp = decy; /* get the decimal */ xPlus = drawNumber(temp,poX, poY, font); poX += xPlus; /* Move cursor right */ sumX += xPlus; decy -= temp; } return sumX; }