Junichi Katsu / Mbed 2 deprecated wallbotLED_base

うおーるぼっとLEDのワークショップ用

Dependencies:   mbed

wallbotLED/Adafruit_LEDBackpack/Adafruit_GFX.cpp@3:b707c09b4433, 2017-02-04 (annotated)

Committer:
jksoft
Date:
Sat Feb 04 03:33:08 2017 +0000
Revision:
3:b707c09b4433
Parent:
0:9fcc79b3f00e 
????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jksoft 0:9fcc79b3f00e 1 /***********************************
jksoft 0:9fcc79b3f00e 2 This is a our graphics core library, for all our displays.
jksoft 0:9fcc79b3f00e 3 We'll be adapting all the
jksoft 0:9fcc79b3f00e 4 existing libaries to use this core to make updating, support
jksoft 0:9fcc79b3f00e 5 and upgrading easier!
jksoft 0:9fcc79b3f00e 6
jksoft 0:9fcc79b3f00e 7 Adafruit invests time and resources providing this open source code,
jksoft 0:9fcc79b3f00e 8 please support Adafruit and open-source hardware by purchasing
jksoft 0:9fcc79b3f00e 9 products from Adafruit!
jksoft 0:9fcc79b3f00e 10
jksoft 0:9fcc79b3f00e 11 Written by Limor Fried/Ladyada for Adafruit Industries.
jksoft 0:9fcc79b3f00e 12 BSD license, check license.txt for more information
jksoft 0:9fcc79b3f00e 13 All text above must be included in any redistribution
jksoft 0:9fcc79b3f00e 14 ****************************************/
jksoft 0:9fcc79b3f00e 15
jksoft 0:9fcc79b3f00e 16 /*
jksoft 0:9fcc79b3f00e 17 * Modified by Neal Horman 7/14/2012 for use in LPC1768
jksoft 0:9fcc79b3f00e 18 */
jksoft 0:9fcc79b3f00e 19
jksoft 0:9fcc79b3f00e 20 #include "mbed.h"
jksoft 0:9fcc79b3f00e 21
jksoft 0:9fcc79b3f00e 22 #include "Adafruit_GFX.h"
jksoft 0:9fcc79b3f00e 23 #include "glcdfont.h"
jksoft 0:9fcc79b3f00e 24
jksoft 0:9fcc79b3f00e 25 #ifdef WANT_ABSTRACTS
jksoft 0:9fcc79b3f00e 26 // draw a circle outline
jksoft 0:9fcc79b3f00e 27 void Adafruit_GFX::drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color)
jksoft 0:9fcc79b3f00e 28 {
jksoft 0:9fcc79b3f00e 29 int16_t f = 1 - r;
jksoft 0:9fcc79b3f00e 30 int16_t ddF_x = 1;
jksoft 0:9fcc79b3f00e 31 int16_t ddF_y = -2 * r;
jksoft 0:9fcc79b3f00e 32 int16_t x = 0;
jksoft 0:9fcc79b3f00e 33 int16_t y = r;
jksoft 0:9fcc79b3f00e 34
jksoft 0:9fcc79b3f00e 35 drawPixel(x0, y0+r, color);
jksoft 0:9fcc79b3f00e 36 drawPixel(x0, y0-r, color);
jksoft 0:9fcc79b3f00e 37 drawPixel(x0+r, y0, color);
jksoft 0:9fcc79b3f00e 38 drawPixel(x0-r, y0, color);
jksoft 0:9fcc79b3f00e 39
jksoft 0:9fcc79b3f00e 40 while (x<y)
jksoft 0:9fcc79b3f00e 41 {
jksoft 0:9fcc79b3f00e 42 if (f >= 0)
jksoft 0:9fcc79b3f00e 43 {
jksoft 0:9fcc79b3f00e 44 y--;
jksoft 0:9fcc79b3f00e 45 ddF_y += 2;
jksoft 0:9fcc79b3f00e 46 f += ddF_y;
jksoft 0:9fcc79b3f00e 47 }
jksoft 0:9fcc79b3f00e 48 x++;
jksoft 0:9fcc79b3f00e 49 ddF_x += 2;
jksoft 0:9fcc79b3f00e 50 f += ddF_x;
jksoft 0:9fcc79b3f00e 51
jksoft 0:9fcc79b3f00e 52 drawPixel(x0 + x, y0 + y, color);
jksoft 0:9fcc79b3f00e 53 drawPixel(x0 - x, y0 + y, color);
jksoft 0:9fcc79b3f00e 54 drawPixel(x0 + x, y0 - y, color);
jksoft 0:9fcc79b3f00e 55 drawPixel(x0 - x, y0 - y, color);
jksoft 0:9fcc79b3f00e 56 drawPixel(x0 + y, y0 + x, color);
jksoft 0:9fcc79b3f00e 57 drawPixel(x0 - y, y0 + x, color);
jksoft 0:9fcc79b3f00e 58 drawPixel(x0 + y, y0 - x, color);
jksoft 0:9fcc79b3f00e 59 drawPixel(x0 - y, y0 - x, color);
jksoft 0:9fcc79b3f00e 60 }
jksoft 0:9fcc79b3f00e 61 }
jksoft 0:9fcc79b3f00e 62
jksoft 0:9fcc79b3f00e 63 void Adafruit_GFX::drawCircleHelper( int16_t x0, int16_t y0, int16_t r, uint8_t cornername, uint16_t color)
jksoft 0:9fcc79b3f00e 64 {
jksoft 0:9fcc79b3f00e 65 int16_t f = 1 - r;
jksoft 0:9fcc79b3f00e 66 int16_t ddF_x = 1;
jksoft 0:9fcc79b3f00e 67 int16_t ddF_y = -2 * r;
jksoft 0:9fcc79b3f00e 68 int16_t x = 0;
jksoft 0:9fcc79b3f00e 69 int16_t y = r;
jksoft 0:9fcc79b3f00e 70
jksoft 0:9fcc79b3f00e 71 while (x<y)
jksoft 0:9fcc79b3f00e 72 {
jksoft 0:9fcc79b3f00e 73 if (f >= 0)
jksoft 0:9fcc79b3f00e 74 {
jksoft 0:9fcc79b3f00e 75 y--;
jksoft 0:9fcc79b3f00e 76 ddF_y += 2;
jksoft 0:9fcc79b3f00e 77 f += ddF_y;
jksoft 0:9fcc79b3f00e 78 }
jksoft 0:9fcc79b3f00e 79 x++;
jksoft 0:9fcc79b3f00e 80 ddF_x += 2;
jksoft 0:9fcc79b3f00e 81 f += ddF_x;
jksoft 0:9fcc79b3f00e 82
jksoft 0:9fcc79b3f00e 83 if (cornername & 0x4)
jksoft 0:9fcc79b3f00e 84 {
jksoft 0:9fcc79b3f00e 85 drawPixel(x0 + x, y0 + y, color);
jksoft 0:9fcc79b3f00e 86 drawPixel(x0 + y, y0 + x, color);
jksoft 0:9fcc79b3f00e 87 }
jksoft 0:9fcc79b3f00e 88
jksoft 0:9fcc79b3f00e 89 if (cornername & 0x2)
jksoft 0:9fcc79b3f00e 90 {
jksoft 0:9fcc79b3f00e 91 drawPixel(x0 + x, y0 - y, color);
jksoft 0:9fcc79b3f00e 92 drawPixel(x0 + y, y0 - x, color);
jksoft 0:9fcc79b3f00e 93 }
jksoft 0:9fcc79b3f00e 94
jksoft 0:9fcc79b3f00e 95 if (cornername & 0x8)
jksoft 0:9fcc79b3f00e 96 {
jksoft 0:9fcc79b3f00e 97 drawPixel(x0 - y, y0 + x, color);
jksoft 0:9fcc79b3f00e 98 drawPixel(x0 - x, y0 + y, color);
jksoft 0:9fcc79b3f00e 99 }
jksoft 0:9fcc79b3f00e 100
jksoft 0:9fcc79b3f00e 101 if (cornername & 0x1)
jksoft 0:9fcc79b3f00e 102 {
jksoft 0:9fcc79b3f00e 103 drawPixel(x0 - y, y0 - x, color);
jksoft 0:9fcc79b3f00e 104 drawPixel(x0 - x, y0 - y, color);
jksoft 0:9fcc79b3f00e 105 }
jksoft 0:9fcc79b3f00e 106 }
jksoft 0:9fcc79b3f00e 107 }
jksoft 0:9fcc79b3f00e 108
jksoft 0:9fcc79b3f00e 109 void Adafruit_GFX::fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color)
jksoft 0:9fcc79b3f00e 110 {
jksoft 0:9fcc79b3f00e 111 drawFastVLine(x0, y0-r, 2*r+1, color);
jksoft 0:9fcc79b3f00e 112 fillCircleHelper(x0, y0, r, 3, 0, color);
jksoft 0:9fcc79b3f00e 113 }
jksoft 0:9fcc79b3f00e 114
jksoft 0:9fcc79b3f00e 115 // used to do circles and roundrects!
jksoft 0:9fcc79b3f00e 116 void Adafruit_GFX::fillCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, int16_t delta, uint16_t color)
jksoft 0:9fcc79b3f00e 117 {
jksoft 0:9fcc79b3f00e 118 int16_t f = 1 - r;
jksoft 0:9fcc79b3f00e 119 int16_t ddF_x = 1;
jksoft 0:9fcc79b3f00e 120 int16_t ddF_y = -2 * r;
jksoft 0:9fcc79b3f00e 121 int16_t x = 0;
jksoft 0:9fcc79b3f00e 122 int16_t y = r;
jksoft 0:9fcc79b3f00e 123
jksoft 0:9fcc79b3f00e 124 while (x<y)
jksoft 0:9fcc79b3f00e 125 {
jksoft 0:9fcc79b3f00e 126 if (f >= 0)
jksoft 0:9fcc79b3f00e 127 {
jksoft 0:9fcc79b3f00e 128 y--;
jksoft 0:9fcc79b3f00e 129 ddF_y += 2;
jksoft 0:9fcc79b3f00e 130 f += ddF_y;
jksoft 0:9fcc79b3f00e 131 }
jksoft 0:9fcc79b3f00e 132 x++;
jksoft 0:9fcc79b3f00e 133 ddF_x += 2;
jksoft 0:9fcc79b3f00e 134 f += ddF_x;
jksoft 0:9fcc79b3f00e 135
jksoft 0:9fcc79b3f00e 136 if (cornername & 0x1)
jksoft 0:9fcc79b3f00e 137 {
jksoft 0:9fcc79b3f00e 138 drawFastVLine(x0+x, y0-y, 2*y+1+delta, color);
jksoft 0:9fcc79b3f00e 139 drawFastVLine(x0+y, y0-x, 2*x+1+delta, color);
jksoft 0:9fcc79b3f00e 140 }
jksoft 0:9fcc79b3f00e 141
jksoft 0:9fcc79b3f00e 142 if (cornername & 0x2)
jksoft 0:9fcc79b3f00e 143 {
jksoft 0:9fcc79b3f00e 144 drawFastVLine(x0-x, y0-y, 2*y+1+delta, color);
jksoft 0:9fcc79b3f00e 145 drawFastVLine(x0-y, y0-x, 2*x+1+delta, color);
jksoft 0:9fcc79b3f00e 146 }
jksoft 0:9fcc79b3f00e 147 }
jksoft 0:9fcc79b3f00e 148 }
jksoft 0:9fcc79b3f00e 149
jksoft 0:9fcc79b3f00e 150 // bresenham's algorithm - thx wikpedia
jksoft 0:9fcc79b3f00e 151 void Adafruit_GFX::drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color)
jksoft 0:9fcc79b3f00e 152 {
jksoft 0:9fcc79b3f00e 153 int16_t steep = abs(y1 - y0) > abs(x1 - x0);
jksoft 0:9fcc79b3f00e 154
jksoft 0:9fcc79b3f00e 155 if (steep)
jksoft 0:9fcc79b3f00e 156 {
jksoft 0:9fcc79b3f00e 157 swap(x0, y0);
jksoft 0:9fcc79b3f00e 158 swap(x1, y1);
jksoft 0:9fcc79b3f00e 159 }
jksoft 0:9fcc79b3f00e 160
jksoft 0:9fcc79b3f00e 161 if (x0 > x1)
jksoft 0:9fcc79b3f00e 162 {
jksoft 0:9fcc79b3f00e 163 swap(x0, x1);
jksoft 0:9fcc79b3f00e 164 swap(y0, y1);
jksoft 0:9fcc79b3f00e 165 }
jksoft 0:9fcc79b3f00e 166
jksoft 0:9fcc79b3f00e 167 int16_t dx, dy;
jksoft 0:9fcc79b3f00e 168 dx = x1 - x0;
jksoft 0:9fcc79b3f00e 169 dy = abs(y1 - y0);
jksoft 0:9fcc79b3f00e 170
jksoft 0:9fcc79b3f00e 171 int16_t err = dx / 2;
jksoft 0:9fcc79b3f00e 172 int16_t ystep;
jksoft 0:9fcc79b3f00e 173
jksoft 0:9fcc79b3f00e 174 if (y0 < y1)
jksoft 0:9fcc79b3f00e 175 ystep = 1;
jksoft 0:9fcc79b3f00e 176 else
jksoft 0:9fcc79b3f00e 177 ystep = -1;
jksoft 0:9fcc79b3f00e 178
jksoft 0:9fcc79b3f00e 179 for (; x0<=x1; x0++)
jksoft 0:9fcc79b3f00e 180 {
jksoft 0:9fcc79b3f00e 181 if (steep)
jksoft 0:9fcc79b3f00e 182 drawPixel(y0, x0, color);
jksoft 0:9fcc79b3f00e 183 else
jksoft 0:9fcc79b3f00e 184 drawPixel(x0, y0, color);
jksoft 0:9fcc79b3f00e 185
jksoft 0:9fcc79b3f00e 186 err -= dy;
jksoft 0:9fcc79b3f00e 187 if (err < 0)
jksoft 0:9fcc79b3f00e 188 {
jksoft 0:9fcc79b3f00e 189 y0 += ystep;
jksoft 0:9fcc79b3f00e 190 err += dx;
jksoft 0:9fcc79b3f00e 191 }
jksoft 0:9fcc79b3f00e 192 }
jksoft 0:9fcc79b3f00e 193 }
jksoft 0:9fcc79b3f00e 194
jksoft 0:9fcc79b3f00e 195
jksoft 0:9fcc79b3f00e 196 // draw a rectangle
jksoft 0:9fcc79b3f00e 197 void Adafruit_GFX::drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color)
jksoft 0:9fcc79b3f00e 198 {
jksoft 0:9fcc79b3f00e 199 drawFastHLine(x, y, w, color);
jksoft 0:9fcc79b3f00e 200 drawFastHLine(x, y+h-1, w, color);
jksoft 0:9fcc79b3f00e 201 drawFastVLine(x, y, h, color);
jksoft 0:9fcc79b3f00e 202 drawFastVLine(x+w-1, y, h, color);
jksoft 0:9fcc79b3f00e 203 }
jksoft 0:9fcc79b3f00e 204
jksoft 0:9fcc79b3f00e 205 void Adafruit_GFX::drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color)
jksoft 0:9fcc79b3f00e 206 {
jksoft 0:9fcc79b3f00e 207 // stupidest version - update in subclasses if desired!
jksoft 0:9fcc79b3f00e 208 drawLine(x, y, x, y+h-1, color);
jksoft 0:9fcc79b3f00e 209 }
jksoft 0:9fcc79b3f00e 210
jksoft 0:9fcc79b3f00e 211 void Adafruit_GFX::drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color)
jksoft 0:9fcc79b3f00e 212 {
jksoft 0:9fcc79b3f00e 213 // stupidest version - update in subclasses if desired!
jksoft 0:9fcc79b3f00e 214 drawLine(x, y, x+w-1, y, color);
jksoft 0:9fcc79b3f00e 215 }
jksoft 0:9fcc79b3f00e 216
jksoft 0:9fcc79b3f00e 217 void Adafruit_GFX::fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color)
jksoft 0:9fcc79b3f00e 218 {
jksoft 0:9fcc79b3f00e 219 // stupidest version - update in subclasses if desired!
jksoft 0:9fcc79b3f00e 220 for (int16_t i=x; i<x+w; i++)
jksoft 0:9fcc79b3f00e 221 drawFastVLine(i, y, h, color);
jksoft 0:9fcc79b3f00e 222 }
jksoft 0:9fcc79b3f00e 223
jksoft 0:9fcc79b3f00e 224
jksoft 0:9fcc79b3f00e 225 void Adafruit_GFX::fillScreen(uint16_t color)
jksoft 0:9fcc79b3f00e 226 {
jksoft 0:9fcc79b3f00e 227 fillRect(0, 0, _width, _height, color);
jksoft 0:9fcc79b3f00e 228 }
jksoft 0:9fcc79b3f00e 229
jksoft 0:9fcc79b3f00e 230 // draw a rounded rectangle!
jksoft 0:9fcc79b3f00e 231 void Adafruit_GFX::drawRoundRect(int16_t x, int16_t y, int16_t w, int16_t h, int16_t r, uint16_t color)
jksoft 0:9fcc79b3f00e 232 {
jksoft 0:9fcc79b3f00e 233 // smarter version
jksoft 0:9fcc79b3f00e 234 drawFastHLine(x+r , y , w-2*r, color); // Top
jksoft 0:9fcc79b3f00e 235 drawFastHLine(x+r , y+h-1, w-2*r, color); // Bottom
jksoft 0:9fcc79b3f00e 236 drawFastVLine( x , y+r , h-2*r, color); // Left
jksoft 0:9fcc79b3f00e 237 drawFastVLine( x+w-1, y+r , h-2*r, color); // Right
jksoft 0:9fcc79b3f00e 238 // draw four corners
jksoft 0:9fcc79b3f00e 239 drawCircleHelper(x+r , y+r , r, 1, color);
jksoft 0:9fcc79b3f00e 240 drawCircleHelper(x+w-r-1, y+r , r, 2, color);
jksoft 0:9fcc79b3f00e 241 drawCircleHelper(x+w-r-1, y+h-r-1, r, 4, color);
jksoft 0:9fcc79b3f00e 242 drawCircleHelper(x+r , y+h-r-1, r, 8, color);
jksoft 0:9fcc79b3f00e 243 }
jksoft 0:9fcc79b3f00e 244
jksoft 0:9fcc79b3f00e 245 // fill a rounded rectangle!
jksoft 0:9fcc79b3f00e 246 void Adafruit_GFX::fillRoundRect(int16_t x, int16_t y, int16_t w, int16_t h, int16_t r, uint16_t color)
jksoft 0:9fcc79b3f00e 247 {
jksoft 0:9fcc79b3f00e 248 // smarter version
jksoft 0:9fcc79b3f00e 249 fillRect(x+r, y, w-2*r, h, color);
jksoft 0:9fcc79b3f00e 250
jksoft 0:9fcc79b3f00e 251 // draw four corners
jksoft 0:9fcc79b3f00e 252 fillCircleHelper(x+w-r-1, y+r, r, 1, h-2*r-1, color);
jksoft 0:9fcc79b3f00e 253 fillCircleHelper(x+r , y+r, r, 2, h-2*r-1, color);
jksoft 0:9fcc79b3f00e 254 }
jksoft 0:9fcc79b3f00e 255
jksoft 0:9fcc79b3f00e 256 // draw a triangle!
jksoft 0:9fcc79b3f00e 257 void Adafruit_GFX::drawTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color)
jksoft 0:9fcc79b3f00e 258 {
jksoft 0:9fcc79b3f00e 259 drawLine(x0, y0, x1, y1, color);
jksoft 0:9fcc79b3f00e 260 drawLine(x1, y1, x2, y2, color);
jksoft 0:9fcc79b3f00e 261 drawLine(x2, y2, x0, y0, color);
jksoft 0:9fcc79b3f00e 262 }
jksoft 0:9fcc79b3f00e 263
jksoft 0:9fcc79b3f00e 264 // fill a triangle!
jksoft 0:9fcc79b3f00e 265 void Adafruit_GFX::fillTriangle ( int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color)
jksoft 0:9fcc79b3f00e 266 {
jksoft 0:9fcc79b3f00e 267 int16_t a, b, y, last;
jksoft 0:9fcc79b3f00e 268
jksoft 0:9fcc79b3f00e 269 // Sort coordinates by Y order (y2 >= y1 >= y0)
jksoft 0:9fcc79b3f00e 270 if (y0 > y1)
jksoft 0:9fcc79b3f00e 271 swap(y0, y1); swap(x0, x1);
jksoft 0:9fcc79b3f00e 272
jksoft 0:9fcc79b3f00e 273 if (y1 > y2)
jksoft 0:9fcc79b3f00e 274 swap(y2, y1); swap(x2, x1);
jksoft 0:9fcc79b3f00e 275
jksoft 0:9fcc79b3f00e 276 if (y0 > y1)
jksoft 0:9fcc79b3f00e 277 swap(y0, y1); swap(x0, x1);
jksoft 0:9fcc79b3f00e 278
jksoft 0:9fcc79b3f00e 279
jksoft 0:9fcc79b3f00e 280 if(y0 == y2)
jksoft 0:9fcc79b3f00e 281 { // Handle awkward all-on-same-line case as its own thing
jksoft 0:9fcc79b3f00e 282 a = b = x0;
jksoft 0:9fcc79b3f00e 283 if(x1 < a)
jksoft 0:9fcc79b3f00e 284 a = x1;
jksoft 0:9fcc79b3f00e 285 else if(x1 > b)
jksoft 0:9fcc79b3f00e 286 b = x1;
jksoft 0:9fcc79b3f00e 287
jksoft 0:9fcc79b3f00e 288 if(x2 < a)
jksoft 0:9fcc79b3f00e 289 a = x2;
jksoft 0:9fcc79b3f00e 290 else if(x2 > b) b = x2;
jksoft 0:9fcc79b3f00e 291 drawFastHLine(a, y0, b-a+1, color);
jksoft 0:9fcc79b3f00e 292 return;
jksoft 0:9fcc79b3f00e 293 }
jksoft 0:9fcc79b3f00e 294
jksoft 0:9fcc79b3f00e 295 int16_t
jksoft 0:9fcc79b3f00e 296 dx01 = x1 - x0,
jksoft 0:9fcc79b3f00e 297 dy01 = y1 - y0,
jksoft 0:9fcc79b3f00e 298 dx02 = x2 - x0,
jksoft 0:9fcc79b3f00e 299 dy02 = y2 - y0,
jksoft 0:9fcc79b3f00e 300 dx12 = x2 - x1,
jksoft 0:9fcc79b3f00e 301 dy12 = y2 - y1,
jksoft 0:9fcc79b3f00e 302 sa = 0,
jksoft 0:9fcc79b3f00e 303 sb = 0;
jksoft 0:9fcc79b3f00e 304
jksoft 0:9fcc79b3f00e 305 // For upper part of triangle, find scanline crossings for segments
jksoft 0:9fcc79b3f00e 306 // 0-1 and 0-2. If y1=y2 (flat-bottomed triangle), the scanline y1
jksoft 0:9fcc79b3f00e 307 // is included here (and second loop will be skipped, avoiding a /0
jksoft 0:9fcc79b3f00e 308 // error there), otherwise scanline y1 is skipped here and handled
jksoft 0:9fcc79b3f00e 309 // in the second loop...which also avoids a /0 error here if y0=y1
jksoft 0:9fcc79b3f00e 310 // (flat-topped triangle).
jksoft 0:9fcc79b3f00e 311 if(y1 == y2)
jksoft 0:9fcc79b3f00e 312 last = y1; // Include y1 scanline
jksoft 0:9fcc79b3f00e 313 else
jksoft 0:9fcc79b3f00e 314 last = y1-1; // Skip it
jksoft 0:9fcc79b3f00e 315
jksoft 0:9fcc79b3f00e 316 for(y=y0; y<=last; y++)
jksoft 0:9fcc79b3f00e 317 {
jksoft 0:9fcc79b3f00e 318 a = x0 + sa / dy01;
jksoft 0:9fcc79b3f00e 319 b = x0 + sb / dy02;
jksoft 0:9fcc79b3f00e 320 sa += dx01;
jksoft 0:9fcc79b3f00e 321 sb += dx02;
jksoft 0:9fcc79b3f00e 322 /* longhand:
jksoft 0:9fcc79b3f00e 323 a = x0 + (x1 - x0) * (y - y0) / (y1 - y0);
jksoft 0:9fcc79b3f00e 324 b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
jksoft 0:9fcc79b3f00e 325 */
jksoft 0:9fcc79b3f00e 326 if(a > b)
jksoft 0:9fcc79b3f00e 327 swap(a,b);
jksoft 0:9fcc79b3f00e 328 drawFastHLine(a, y, b-a+1, color);
jksoft 0:9fcc79b3f00e 329 }
jksoft 0:9fcc79b3f00e 330
jksoft 0:9fcc79b3f00e 331 // For lower part of triangle, find scanline crossings for segments
jksoft 0:9fcc79b3f00e 332 // 0-2 and 1-2. This loop is skipped if y1=y2.
jksoft 0:9fcc79b3f00e 333 sa = dx12 * (y - y1);
jksoft 0:9fcc79b3f00e 334 sb = dx02 * (y - y0);
jksoft 0:9fcc79b3f00e 335 for(; y<=y2; y++)
jksoft 0:9fcc79b3f00e 336 {
jksoft 0:9fcc79b3f00e 337 a = x1 + sa / dy12;
jksoft 0:9fcc79b3f00e 338 b = x0 + sb / dy02;
jksoft 0:9fcc79b3f00e 339 sa += dx12;
jksoft 0:9fcc79b3f00e 340 sb += dx02;
jksoft 0:9fcc79b3f00e 341 /* longhand:
jksoft 0:9fcc79b3f00e 342 a = x1 + (x2 - x1) * (y - y1) / (y2 - y1);
jksoft 0:9fcc79b3f00e 343 b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
jksoft 0:9fcc79b3f00e 344 */
jksoft 0:9fcc79b3f00e 345 if(a > b)
jksoft 0:9fcc79b3f00e 346 swap(a,b);
jksoft 0:9fcc79b3f00e 347 drawFastHLine(a, y, b-a+1, color);
jksoft 0:9fcc79b3f00e 348 }
jksoft 0:9fcc79b3f00e 349 }
jksoft 0:9fcc79b3f00e 350 #endif
jksoft 0:9fcc79b3f00e 351
jksoft 0:9fcc79b3f00e 352 void Adafruit_GFX::drawBitmap(int16_t x, int16_t y, const uint8_t *bitmap, int16_t w, int16_t h, uint16_t color)
jksoft 0:9fcc79b3f00e 353 {
jksoft 0:9fcc79b3f00e 354 for (int16_t j=0; j<h; j++)
jksoft 0:9fcc79b3f00e 355 {
jksoft 0:9fcc79b3f00e 356 for (int16_t i=0; i<w; i++ )
jksoft 0:9fcc79b3f00e 357 {
jksoft 0:9fcc79b3f00e 358 if (bitmap[i + (j/8)*w] & _BV(j%8))
jksoft 0:9fcc79b3f00e 359 drawPixel(x+i, y+j, color);
jksoft 0:9fcc79b3f00e 360 }
jksoft 0:9fcc79b3f00e 361 }
jksoft 0:9fcc79b3f00e 362 }
jksoft 0:9fcc79b3f00e 363
jksoft 0:9fcc79b3f00e 364 size_t Adafruit_GFX::writeChar(uint8_t c)
jksoft 0:9fcc79b3f00e 365 {
jksoft 0:9fcc79b3f00e 366 if (c == '\n')
jksoft 0:9fcc79b3f00e 367 {
jksoft 0:9fcc79b3f00e 368 cursor_y += textsize*8;
jksoft 0:9fcc79b3f00e 369 cursor_x = 0;
jksoft 0:9fcc79b3f00e 370 }
jksoft 0:9fcc79b3f00e 371 else if (c == '\r')
jksoft 0:9fcc79b3f00e 372 cursor_x = 0;
jksoft 0:9fcc79b3f00e 373 else
jksoft 0:9fcc79b3f00e 374 {
jksoft 0:9fcc79b3f00e 375 drawChar(cursor_x, cursor_y, c, textcolor, textbgcolor, textsize);
jksoft 0:9fcc79b3f00e 376 cursor_x += textsize*6;
jksoft 0:9fcc79b3f00e 377 if (wrap && (cursor_x > (_width - textsize*6)))
jksoft 0:9fcc79b3f00e 378 {
jksoft 0:9fcc79b3f00e 379 cursor_y += textsize*8;
jksoft 0:9fcc79b3f00e 380 cursor_x = 0;
jksoft 0:9fcc79b3f00e 381 }
jksoft 0:9fcc79b3f00e 382 }
jksoft 0:9fcc79b3f00e 383 return 1;
jksoft 0:9fcc79b3f00e 384 }
jksoft 0:9fcc79b3f00e 385
jksoft 0:9fcc79b3f00e 386 // draw a character
jksoft 0:9fcc79b3f00e 387 void Adafruit_GFX::drawChar(int16_t x, int16_t y, unsigned char c, uint16_t color, uint16_t bg, uint8_t size)
jksoft 0:9fcc79b3f00e 388 {
jksoft 0:9fcc79b3f00e 389 if(
jksoft 0:9fcc79b3f00e 390 (x >= _width) || // Clip right
jksoft 0:9fcc79b3f00e 391 (y >= _height) || // Clip bottom
jksoft 0:9fcc79b3f00e 392 ((x + 5 * size - 1) < 0) || // Clip left
jksoft 0:9fcc79b3f00e 393 ((y + 8 * size - 1) < 0) // Clip top
jksoft 0:9fcc79b3f00e 394 )
jksoft 0:9fcc79b3f00e 395 return;
jksoft 0:9fcc79b3f00e 396
jksoft 0:9fcc79b3f00e 397 for (int8_t i=0; i<6; i++ )
jksoft 0:9fcc79b3f00e 398 {
jksoft 0:9fcc79b3f00e 399 uint8_t line = 0;
jksoft 0:9fcc79b3f00e 400
jksoft 0:9fcc79b3f00e 401 if (i == 5)
jksoft 0:9fcc79b3f00e 402 line = 0x0;
jksoft 0:9fcc79b3f00e 403 else
jksoft 0:9fcc79b3f00e 404 line = font[(c*5)+i];
jksoft 0:9fcc79b3f00e 405
jksoft 0:9fcc79b3f00e 406 for (int8_t j = 0; j<8; j++)
jksoft 0:9fcc79b3f00e 407 {
jksoft 0:9fcc79b3f00e 408 if (line & 0x1)
jksoft 0:9fcc79b3f00e 409 {
jksoft 0:9fcc79b3f00e 410 if (size == 1) // default size
jksoft 0:9fcc79b3f00e 411 drawPixel(x+i, y+j, color);
jksoft 0:9fcc79b3f00e 412 #ifdef WANT_ABSTRACTS
jksoft 0:9fcc79b3f00e 413 else // big size
jksoft 0:9fcc79b3f00e 414 fillRect(x+(i*size), y+(j*size), size, size, color);
jksoft 0:9fcc79b3f00e 415 #endif
jksoft 0:9fcc79b3f00e 416 }
jksoft 0:9fcc79b3f00e 417 else if (bg != color)
jksoft 0:9fcc79b3f00e 418 {
jksoft 0:9fcc79b3f00e 419 if (size == 1) // default size
jksoft 0:9fcc79b3f00e 420 drawPixel(x+i, y+j, bg);
jksoft 0:9fcc79b3f00e 421 #ifdef WANT_ABSTRACTS
jksoft 0:9fcc79b3f00e 422 else // big size
jksoft 0:9fcc79b3f00e 423 fillRect(x+i*size, y+j*size, size, size, bg);
jksoft 0:9fcc79b3f00e 424 #endif
jksoft 0:9fcc79b3f00e 425 }
jksoft 0:9fcc79b3f00e 426 line >>= 1;
jksoft 0:9fcc79b3f00e 427 }
jksoft 0:9fcc79b3f00e 428 }
jksoft 0:9fcc79b3f00e 429 }
jksoft 0:9fcc79b3f00e 430 void Adafruit_GFX::setRotation(uint8_t x)
jksoft 0:9fcc79b3f00e 431 {
jksoft 0:9fcc79b3f00e 432 x %= 4; // cant be higher than 3
jksoft 0:9fcc79b3f00e 433 rotation = x;
jksoft 0:9fcc79b3f00e 434 switch (x)
jksoft 0:9fcc79b3f00e 435 {
jksoft 0:9fcc79b3f00e 436 case 0:
jksoft 0:9fcc79b3f00e 437 case 2:
jksoft 0:9fcc79b3f00e 438 _width = _rawWidth;
jksoft 0:9fcc79b3f00e 439 _height = _rawHeight;
jksoft 0:9fcc79b3f00e 440 break;
jksoft 0:9fcc79b3f00e 441 case 1:
jksoft 0:9fcc79b3f00e 442 case 3:
jksoft 0:9fcc79b3f00e 443 _width = _rawHeight;
jksoft 0:9fcc79b3f00e 444 _height = _rawWidth;
jksoft 0:9fcc79b3f00e 445 break;
jksoft 0:9fcc79b3f00e 446 }
jksoft 0:9fcc79b3f00e 447 }