1 | /*
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2 | This is the core graphics library for all our displays, providing a common
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3 | set of graphics primitives (points, lines, circles, etc.). It needs to be
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4 | paired with a hardware-specific library for each display device we carry
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5 | (to handle the lower-level functions).
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6 |
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7 | Adafruit invests time and resources providing this open source code, please
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8 | support Adafruit & open-source hardware by purchasing products from Adafruit!
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9 |
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10 | Copyright (c) 2013 Adafruit Industries. All rights reserved.
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11 |
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12 | Redistribution and use in source and binary forms, with or without
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13 | modification, are permitted provided that the following conditions are met:
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14 |
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15 | - Redistributions of source code must retain the above copyright notice,
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16 | this list of conditions and the following disclaimer.
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17 | - Redistributions in binary form must reproduce the above copyright notice,
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18 | this list of conditions and the following disclaimer in the documentation
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19 | and/or other materials provided with the distribution.
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20 |
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21 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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22 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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23 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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24 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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25 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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26 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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27 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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28 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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29 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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30 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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31 | POSSIBILITY OF SUCH DAMAGE.
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32 | */
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33 |
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34 | #include "Adafruit_GFX.h"
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35 | #include "glcdfont.c"
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36 | #ifdef __AVR__
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37 | #include <avr/pgmspace.h>
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38 | #else
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39 | #define pgm_read_byte(addr) (*(const unsigned char *)(addr))
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40 | #endif
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41 |
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42 | Adafruit_GFX::Adafruit_GFX(int16_t w, int16_t h) :
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43 | WIDTH(w), HEIGHT(h)
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44 | {
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45 | _width = WIDTH;
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46 | _height = HEIGHT;
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47 | rotation = 0;
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48 | cursor_y = cursor_x = 0;
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49 | textsize = 1;
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50 | textcolor = textbgcolor = 0xFFFF;
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51 | wrap = true;
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52 | }
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53 |
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54 | // draw a circle outline
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55 | void Adafruit_GFX::drawCircle(int16_t x0, int16_t y0, int16_t r,
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56 | uint16_t color) {
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57 | int16_t f = 1 - r;
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58 | int16_t ddF_x = 1;
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59 | int16_t ddF_y = -2 * r;
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60 | int16_t x = 0;
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61 | int16_t y = r;
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62 |
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63 | drawPixel(x0, y0+r, color);
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64 | drawPixel(x0, y0-r, color);
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65 | drawPixel(x0+r, y0, color);
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66 | drawPixel(x0-r, y0, color);
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67 |
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68 | while (x<y) {
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69 | if (f >= 0) {
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70 | y--;
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71 | ddF_y += 2;
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72 | f += ddF_y;
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73 | }
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74 | x++;
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75 | ddF_x += 2;
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76 | f += ddF_x;
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77 |
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78 | drawPixel(x0 + x, y0 + y, color);
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79 | drawPixel(x0 - x, y0 + y, color);
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80 | drawPixel(x0 + x, y0 - y, color);
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81 | drawPixel(x0 - x, y0 - y, color);
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82 | drawPixel(x0 + y, y0 + x, color);
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83 | drawPixel(x0 - y, y0 + x, color);
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84 | drawPixel(x0 + y, y0 - x, color);
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85 | drawPixel(x0 - y, y0 - x, color);
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86 | }
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87 | }
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88 |
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89 | void Adafruit_GFX::drawCircleHelper( int16_t x0, int16_t y0,
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90 | int16_t r, uint8_t cornername, uint16_t color) {
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91 | int16_t f = 1 - r;
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92 | int16_t ddF_x = 1;
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93 | int16_t ddF_y = -2 * r;
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94 | int16_t x = 0;
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95 | int16_t y = r;
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96 |
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97 | while (x<y) {
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98 | if (f >= 0) {
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99 | y--;
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100 | ddF_y += 2;
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101 | f += ddF_y;
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102 | }
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103 | x++;
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104 | ddF_x += 2;
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105 | f += ddF_x;
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106 | if (cornername & 0x4) {
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107 | drawPixel(x0 + x, y0 + y, color);
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108 | drawPixel(x0 + y, y0 + x, color);
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109 | }
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110 | if (cornername & 0x2) {
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111 | drawPixel(x0 + x, y0 - y, color);
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112 | drawPixel(x0 + y, y0 - x, color);
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113 | }
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114 | if (cornername & 0x8) {
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115 | drawPixel(x0 - y, y0 + x, color);
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116 | drawPixel(x0 - x, y0 + y, color);
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117 | }
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118 | if (cornername & 0x1) {
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119 | drawPixel(x0 - y, y0 - x, color);
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120 | drawPixel(x0 - x, y0 - y, color);
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121 | }
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122 | }
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123 | }
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124 |
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125 | void Adafruit_GFX::fillCircle(int16_t x0, int16_t y0, int16_t r,
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126 | uint16_t color)
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127 | {
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128 | drawFastVLine(x0, y0-r, 2*r+1, color);
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129 | fillCircleHelper(x0, y0, r, 3, 0, color);
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130 | }
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131 |
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132 | // used to do circles and roundrects
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133 | void Adafruit_GFX::fillCircleHelper(int16_t x0, int16_t y0, int16_t r,
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134 | uint8_t cornername, int16_t delta, uint16_t color)
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135 | {
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136 | int16_t f = 1 - r;
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137 | int16_t ddF_x = 1;
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138 | int16_t ddF_y = -2 * r;
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139 | int16_t x = 0;
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140 | int16_t y = r;
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141 |
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142 | while (x<y) {
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143 | if (f >= 0) {
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144 | y--;
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145 | ddF_y += 2;
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146 | f += ddF_y;
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147 | }
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148 | x++;
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149 | ddF_x += 2;
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150 | f += ddF_x;
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151 |
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152 | if (cornername & 0x1) {
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153 | drawFastVLine(x0+x, y0-y, 2*y+1+delta, color);
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154 | drawFastVLine(x0+y, y0-x, 2*x+1+delta, color);
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155 | }
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156 | if (cornername & 0x2) {
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157 | drawFastVLine(x0-x, y0-y, 2*y+1+delta, color);
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158 | drawFastVLine(x0-y, y0-x, 2*x+1+delta, color);
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159 | }
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160 | }
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161 | }
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162 |
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163 | // Bresenham's algorithm - thx wikpedia
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164 | void Adafruit_GFX::drawLine(int16_t x0, int16_t y0,
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165 | int16_t x1, int16_t y1,
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166 | uint16_t color)
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167 | {
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168 | int16_t steep = abs(y1 - y0) > abs(x1 - x0);
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169 | if (steep) {
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170 | swap(x0, y0);
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171 | swap(x1, y1);
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172 | }
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173 |
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174 | if (x0 > x1) {
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175 | swap(x0, x1);
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176 | swap(y0, y1);
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177 | }
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178 |
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179 | int16_t dx, dy;
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180 | dx = x1 - x0;
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181 | dy = abs(y1 - y0);
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182 |
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183 | int16_t err = dx / 2;
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184 | int16_t ystep;
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185 |
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186 | if (y0 < y1) {
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187 | ystep = 1;
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188 | } else {
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189 | ystep = -1;
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190 | }
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191 |
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192 | for (; x0<=x1; x0++) {
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193 | if (steep) {
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194 | drawPixel(y0, x0, color);
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195 | } else {
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196 | drawPixel(x0, y0, color);
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197 | }
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198 | err -= dy;
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199 | if (err < 0) {
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200 | y0 += ystep;
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201 | err += dx;
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202 | }
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203 | }
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204 | }
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205 |
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206 |
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207 | // Draw a rectangle
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208 | void Adafruit_GFX::drawRect(int16_t x, int16_t y,
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209 | int16_t w, int16_t h,
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210 | uint16_t color)
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211 | {
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212 | drawFastHLine(x, y, w, color);
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213 | drawFastHLine(x, y+h-1, w, color);
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214 | drawFastVLine(x, y, h, color);
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215 | drawFastVLine(x+w-1, y, h, color);
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216 | }
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217 |
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218 | void Adafruit_GFX::drawFastVLine(int16_t x, int16_t y,
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219 | int16_t h, uint16_t color)
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220 | {
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221 | // Update in subclasses if desired!
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222 | drawLine(x, y, x, y+h-1, color);
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223 | }
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224 |
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225 |
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226 | void Adafruit_GFX::drawFastHLine(int16_t x, int16_t y,
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227 | int16_t w, uint16_t color)
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228 | {
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229 | // Update in subclasses if desired!
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230 | drawLine(x, y, x+w-1, y, color);
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231 | }
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232 |
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233 | void Adafruit_GFX::fillRect(int16_t x, int16_t y, int16_t w, int16_t h,
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234 | uint16_t color)
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235 | {
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236 | // Update in subclasses if desired!
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237 | for (int16_t i=x; i<x+w; i++) {
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238 | drawFastVLine(i, y, h, color);
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239 | }
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240 | }
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241 |
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242 |
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243 | void Adafruit_GFX::fillScreen(uint16_t color) {
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244 | fillRect(0, 0, _width, _height, color);
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245 | }
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246 |
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247 | // Draw a rounded rectangle
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248 | void Adafruit_GFX::drawRoundRect(int16_t x, int16_t y, int16_t w,
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249 | int16_t h, int16_t r, uint16_t color)
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250 | {
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251 | // smarter version
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252 | drawFastHLine(x+r , y , w-2*r, color); // Top
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253 | drawFastHLine(x+r , y+h-1, w-2*r, color); // Bottom
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254 | drawFastVLine(x , y+r , h-2*r, color); // Left
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255 | drawFastVLine(x+w-1, y+r , h-2*r, color); // Right
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256 | // draw four corners
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257 | drawCircleHelper(x+r , y+r , r, 1, color);
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258 | drawCircleHelper(x+w-r-1, y+r , r, 2, color);
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259 | drawCircleHelper(x+w-r-1, y+h-r-1, r, 4, color);
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260 | drawCircleHelper(x+r , y+h-r-1, r, 8, color);
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261 | }
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262 |
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263 | // Fill a rounded rectangle
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264 | void Adafruit_GFX::fillRoundRect(int16_t x, int16_t y, int16_t w,
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265 | int16_t h, int16_t r, uint16_t color)
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266 | {
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267 | // smarter version
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268 | fillRect(x+r, y, w-2*r, h, color);
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269 |
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270 | // draw four corners
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271 | fillCircleHelper(x+w-r-1, y+r, r, 1, h-2*r-1, color);
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272 | fillCircleHelper(x+r , y+r, r, 2, h-2*r-1, color);
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273 | }
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274 |
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275 | // Draw a triangle
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276 | void Adafruit_GFX::drawTriangle(int16_t x0, int16_t y0,
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277 | int16_t x1, int16_t y1,
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278 | int16_t x2, int16_t y2, uint16_t color) {
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279 | drawLine(x0, y0, x1, y1, color);
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280 | drawLine(x1, y1, x2, y2, color);
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281 | drawLine(x2, y2, x0, y0, color);
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282 | }
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283 |
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284 | // Fill a triangle
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285 | void Adafruit_GFX::fillTriangle ( int16_t x0, int16_t y0,
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286 | int16_t x1, int16_t y1,
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287 | int16_t x2, int16_t y2, uint16_t color) {
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288 | int16_t a, b, y, last;
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289 |
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290 | // Sort coordinates by Y order (y2 >= y1 >= y0)
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291 | if (y0 > y1) {
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292 | swap(y0, y1); swap(x0, x1);
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293 | }
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294 | if (y1 > y2) {
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295 | swap(y2, y1); swap(x2, x1);
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296 | }
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297 | if (y0 > y1) {
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298 | swap(y0, y1); swap(x0, x1);
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299 | }
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300 |
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301 | if(y0 == y2) { // Handle awkward all-on-same-line case as its own thing
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302 | a = b = x0;
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303 | if(x1 < a) a = x1;
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304 | else if(x1 > b) b = x1;
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305 | if(x2 < a) a = x2;
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306 | else if(x2 > b) b = x2;
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307 | drawFastHLine(a, y0, b-a+1, color);
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308 | return;
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309 | }
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310 |
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311 | int16_t
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312 | dx01 = x1 - x0,
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313 | dy01 = y1 - y0,
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314 | dx02 = x2 - x0,
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315 | dy02 = y2 - y0,
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316 | dx12 = x2 - x1,
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317 | dy12 = y2 - y1,
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318 | sa = 0,
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319 | sb = 0;
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320 |
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321 | // For upper part of triangle, find scanline crossings for segments
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322 | // 0-1 and 0-2. If y1=y2 (flat-bottomed triangle), the scanline y1
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323 | // is included here (and second loop will be skipped, avoiding a /0
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324 | // error there), otherwise scanline y1 is skipped here and handled
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325 | // in the second loop...which also avoids a /0 error here if y0=y1
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326 | // (flat-topped triangle).
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327 | if(y1 == y2) last = y1; // Include y1 scanline
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328 | else last = y1-1; // Skip it
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329 |
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330 | for(y=y0; y<=last; y++) {
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331 | a = x0 + sa / dy01;
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332 | b = x0 + sb / dy02;
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333 | sa += dx01;
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334 | sb += dx02;
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335 | /* longhand:
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336 | a = x0 + (x1 - x0) * (y - y0) / (y1 - y0);
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337 | b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
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338 | */
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339 | if(a > b) swap(a,b);
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340 | drawFastHLine(a, y, b-a+1, color);
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341 | }
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342 |
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343 | // For lower part of triangle, find scanline crossings for segments
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344 | // 0-2 and 1-2. This loop is skipped if y1=y2.
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345 | sa = dx12 * (y - y1);
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346 | sb = dx02 * (y - y0);
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347 | for(; y<=y2; y++) {
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348 | a = x1 + sa / dy12;
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349 | b = x0 + sb / dy02;
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350 | sa += dx12;
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351 | sb += dx02;
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352 | /* longhand:
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353 | a = x1 + (x2 - x1) * (y - y1) / (y2 - y1);
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354 | b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
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355 | */
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356 | if(a > b) swap(a,b);
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357 | drawFastHLine(a, y, b-a+1, color);
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358 | }
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359 | }
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360 |
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361 | void Adafruit_GFX::drawBitmap(int16_t x, int16_t y,
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362 | const uint8_t *bitmap, int16_t w, int16_t h,
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363 | uint16_t color)
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364 | {
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365 | int16_t i, j, byteWidth = (w + 7) / 8;
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366 |
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367 | for(j=0; j<h; j++) {
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368 | for(i=0; i<w; i++ ) {
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369 | if(pgm_read_byte(bitmap + j * byteWidth + i / 8) & (128 >> (i & 7))) {
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370 | drawPixel(x+i, y+j, color);
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371 | }
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372 | }
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373 | }
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374 | }
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375 |
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376 |
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377 | #if ARDUINO >= 100
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378 | size_t Adafruit_GFX::write(uint8_t c) {
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379 | #else
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380 | void Adafruit_GFX::write(uint8_t c) {
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381 | #endif
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382 | if (c == '\n') {
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383 | cursor_y += textsize*8;
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384 | cursor_x = 0;
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385 | } else if (c == '\r') {
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386 | // skip em
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387 | } else {
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388 | drawChar(cursor_x, cursor_y, c, textcolor, textbgcolor, textsize);
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389 | cursor_x += textsize*6;
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390 | if (wrap && (cursor_x > (_width - textsize*6))) {
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391 | cursor_y += textsize*8;
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392 | cursor_x = 0;
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393 | }
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394 | }
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395 | #if ARDUINO >= 100
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396 | return 1;
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397 | #endif
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398 | }
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399 |
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400 | // draw a character
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401 | void Adafruit_GFX::drawChar(int16_t x, int16_t y, unsigned char c,
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402 | uint16_t color, uint16_t bg, uint8_t size)
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403 | {
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404 | if((x >= _width) || // Clip right
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405 | (y >= _height) || // Clip bottom
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406 | ((x + 6 * size - 1) < 0) || // Clip left
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407 | ((y + 8 * size - 1) < 0)) // Clip top
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408 | return;
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409 |
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410 | for (int8_t i=0; i<6; i++ ) {
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411 | uint8_t line;
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412 | if (i == 5)
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413 | line = 0x0;
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414 | else
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415 | line = pgm_read_byte(font+(c*5)+i);
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416 | for (int8_t j = 0; j<8; j++) {
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417 | if (line & 0x1) {
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418 | if (size == 1) // default size
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419 | drawPixel(x+i, y+j, color);
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420 | else { // big size
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421 | fillRect(x+(i*size), y+(j*size), size, size, color);
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422 | }
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423 | } else if (bg != color) {
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424 | if (size == 1) // default size
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425 | drawPixel(x+i, y+j, bg);
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426 | else { // big size
|
---|
427 | fillRect(x+i*size, y+j*size, size, size, bg);
|
---|
428 | }
|
---|
429 | }
|
---|
430 | line >>= 1;
|
---|
431 | }
|
---|
432 | }
|
---|
433 | }
|
---|
434 |
|
---|
435 | void Adafruit_GFX::setCursor(int16_t x, int16_t y)
|
---|
436 | {
|
---|
437 | cursor_x = x;
|
---|
438 | cursor_y = y;
|
---|
439 | }
|
---|
440 |
|
---|
441 |
|
---|
442 | void Adafruit_GFX::setTextSize(uint8_t s)
|
---|
443 | {
|
---|
444 | textsize = (s > 0) ? s : 1;
|
---|
445 | }
|
---|
446 |
|
---|
447 |
|
---|
448 | void Adafruit_GFX::setTextColor(uint16_t c) {
|
---|
449 | textcolor = c;
|
---|
450 | textbgcolor = c;
|
---|
451 | // for 'transparent' background, we'll set the bg
|
---|
452 | // to the same as fg instead of using a flag
|
---|
453 | }
|
---|
454 |
|
---|
455 | void Adafruit_GFX::setTextColor(uint16_t c, uint16_t b)
|
---|
456 | {
|
---|
457 | textcolor = c;
|
---|
458 | textbgcolor = b;
|
---|
459 | }
|
---|
460 |
|
---|
461 | void Adafruit_GFX::setTextWrap(boolean w)
|
---|
462 | {
|
---|
463 | wrap = w;
|
---|
464 | }
|
---|
465 |
|
---|
466 | uint8_t Adafruit_GFX::getRotation(void)
|
---|
467 | {
|
---|
468 | return rotation;
|
---|
469 | }
|
---|
470 |
|
---|
471 | void Adafruit_GFX::setRotation(uint8_t x)
|
---|
472 | {
|
---|
473 | rotation = (x & 3);
|
---|
474 | switch (x) {
|
---|
475 | case 0:
|
---|
476 | case 2:
|
---|
477 | _width = WIDTH;
|
---|
478 | _height = HEIGHT;
|
---|
479 | break;
|
---|
480 | case 1:
|
---|
481 | case 3:
|
---|
482 | _width = HEIGHT;
|
---|
483 | _height = WIDTH;
|
---|
484 | break;
|
---|
485 | }
|
---|
486 | }
|
---|
487 |
|
---|
488 |
|
---|
489 |
|
---|
490 | // return the size of the display (per current rotation)
|
---|
491 | int16_t Adafruit_GFX::width(void)
|
---|
492 | {
|
---|
493 | return _width;
|
---|
494 | }
|
---|
495 |
|
---|
496 | int16_t Adafruit_GFX::height(void)
|
---|
497 | {
|
---|
498 | return _height;
|
---|
499 | }
|
---|
500 |
|
---|
501 | void Adafruit_GFX::invertDisplay(boolean i)
|
---|
502 | {
|
---|
503 | // Do nothing, must be subclassed if supported
|
---|
504 | }
|
---|
505 |
|
---|
506 |
|
---|
507 | uint16_t Adafruit_GFX::newColor(uint8_t r, uint8_t g, uint8_t b)
|
---|
508 | {
|
---|
509 | return ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3);
|
---|
510 | }
|
---|
511 |
|
---|
512 | void Adafruit_GFX::background(uint8_t red, uint8_t green, uint8_t blue)
|
---|
513 | {
|
---|
514 | background(newColor(red, green, blue));
|
---|
515 | }
|
---|
516 |
|
---|
517 | void Adafruit_GFX::background(color c) {
|
---|
518 | fillScreen(c);
|
---|
519 | }
|
---|
520 |
|
---|
521 | void Adafruit_GFX::stroke(uint8_t red, uint8_t green, uint8_t blue)
|
---|
522 | {
|
---|
523 | stroke(newColor(red, green, blue));
|
---|
524 | }
|
---|
525 |
|
---|
526 | void Adafruit_GFX::stroke(color c)
|
---|
527 | {
|
---|
528 | useStroke = true;
|
---|
529 | strokeColor = c;
|
---|
530 | setTextColor(c);
|
---|
531 | }
|
---|
532 |
|
---|
533 | void Adafruit_GFX::noStroke()
|
---|
534 | {
|
---|
535 | useStroke = false;
|
---|
536 | }
|
---|
537 |
|
---|
538 | void Adafruit_GFX::noFill() {
|
---|
539 | useFill = false;
|
---|
540 | }
|
---|
541 |
|
---|
542 | void Adafruit_GFX::fill(uint8_t red, uint8_t green, uint8_t blue)
|
---|
543 | {
|
---|
544 | fill(newColor(red, green, blue));
|
---|
545 | }
|
---|
546 |
|
---|
547 | void Adafruit_GFX::fill(color c)
|
---|
548 | {
|
---|
549 | useFill = true;
|
---|
550 | fillColor = c;
|
---|
551 | }
|
---|
552 |
|
---|
553 |
|
---|
554 | void Adafruit_GFX::text(const char * text, int16_t x, int16_t y)
|
---|
555 | {
|
---|
556 | if (!useStroke)
|
---|
557 | return;
|
---|
558 |
|
---|
559 | setTextWrap(false);
|
---|
560 | setTextColor(strokeColor);
|
---|
561 | setCursor(x, y);
|
---|
562 | print(text);
|
---|
563 | }
|
---|
564 |
|
---|
565 | void Adafruit_GFX::textWrap(const char * text, int16_t x, int16_t y)
|
---|
566 | {
|
---|
567 | if (!useStroke)
|
---|
568 | return;
|
---|
569 |
|
---|
570 | setTextWrap(true);
|
---|
571 | setTextColor(strokeColor);
|
---|
572 | setCursor(x, y);
|
---|
573 | print(text);
|
---|
574 | }
|
---|
575 |
|
---|
576 |
|
---|
577 | void Adafruit_GFX::textSize(uint8_t size)
|
---|
578 | {
|
---|
579 | setTextSize(size);
|
---|
580 | }
|
---|
581 |
|
---|
582 | void Adafruit_GFX::point(int16_t x, int16_t y)
|
---|
583 | {
|
---|
584 | if (!useStroke)
|
---|
585 | return;
|
---|
586 |
|
---|
587 | drawPixel(x, y, strokeColor);
|
---|
588 | }
|
---|
589 |
|
---|
590 | void Adafruit_GFX::line(int16_t x1, int16_t y1, int16_t x2, int16_t y2)
|
---|
591 | {
|
---|
592 | if (!useStroke)
|
---|
593 | return;
|
---|
594 |
|
---|
595 | if (x1 == x2) {
|
---|
596 | if (y1 < y2)
|
---|
597 | drawFastVLine(x1, y1, y2 - y1, strokeColor);
|
---|
598 | else
|
---|
599 | drawFastVLine(x1, y2, y1 - y2, strokeColor);
|
---|
600 | }
|
---|
601 | else if (y1 == y2) {
|
---|
602 | if (x1 < x2)
|
---|
603 | drawFastHLine(x1, y1, x2 - x1, strokeColor);
|
---|
604 | else
|
---|
605 | drawFastHLine(x2, y1, x1 - x2, strokeColor);
|
---|
606 | }
|
---|
607 | else {
|
---|
608 | drawLine(x1, y1, x2, y2, strokeColor);
|
---|
609 | }
|
---|
610 | }
|
---|
611 |
|
---|
612 | void Adafruit_GFX::rect(int16_t x, int16_t y, int16_t width, int16_t height)
|
---|
613 | {
|
---|
614 | if (useFill) {
|
---|
615 | fillRect(x, y, width, height, fillColor);
|
---|
616 | }
|
---|
617 | if (useStroke) {
|
---|
618 | drawRect(x, y, width, height, strokeColor);
|
---|
619 | }
|
---|
620 | }
|
---|
621 |
|
---|
622 | void Adafruit_GFX::rect(int16_t x, int16_t y, int16_t width, int16_t height, int16_t radius)
|
---|
623 | {
|
---|
624 | if (radius == 0) {
|
---|
625 | rect(x, y, width, height);
|
---|
626 | }
|
---|
627 | if (useFill) {
|
---|
628 | fillRoundRect(x, y, width, height, radius, fillColor);
|
---|
629 | }
|
---|
630 | if (useStroke) {
|
---|
631 | drawRoundRect(x, y, width, height, radius, strokeColor);
|
---|
632 | }
|
---|
633 | }
|
---|
634 |
|
---|
635 | void Adafruit_GFX::circle(int16_t x, int16_t y, int16_t r)
|
---|
636 | {
|
---|
637 | if (r == 0)
|
---|
638 | return;
|
---|
639 |
|
---|
640 | if (useFill) {
|
---|
641 | fillCircle(x, y, r, fillColor);
|
---|
642 | }
|
---|
643 | if (useStroke) {
|
---|
644 | drawCircle(x, y, r, strokeColor);
|
---|
645 | }
|
---|
646 | }
|
---|
647 |
|
---|
648 | void Adafruit_GFX::triangle(int16_t x1, int16_t y1, int16_t x2, int16_t y2, int16_t x3, int16_t y3)
|
---|
649 | {
|
---|
650 | if (useFill) {
|
---|
651 | fillTriangle(x1, y1, x2, y2, x3, y3, fillColor);
|
---|
652 | }
|
---|
653 | if (useStroke) {
|
---|
654 | drawTriangle(x1, y1, x2, y2, x3, y3, strokeColor);
|
---|
655 | }
|
---|
656 | }
|
---|
657 |
|
---|
658 | #if defined(__SD_H__) // Arduino SD library
|
---|
659 |
|
---|
660 | #define BUFFPIXEL 20
|
---|
661 |
|
---|
662 | void Adafruit_GFX::image(PImage & img, uint16_t x, uint16_t y) {
|
---|
663 | int w, h, row, col;
|
---|
664 | uint8_t r, g, b;
|
---|
665 | uint32_t pos = 0;
|
---|
666 | uint8_t sdbuffer[3*BUFFPIXEL]; // pixel buffer (R+G+B per pixel)
|
---|
667 | uint8_t buffidx = sizeof(sdbuffer); // Current position in sdbuffer
|
---|
668 |
|
---|
669 | // Crop area to be loaded
|
---|
670 | w = img._bmpWidth;
|
---|
671 | h = img._bmpHeight;
|
---|
672 | if((x+w-1) >= width()) w = width() - x;
|
---|
673 | if((y+h-1) >= height()) h = height() - y;
|
---|
674 |
|
---|
675 | /*
|
---|
676 | // Set TFT address window to clipped image bounds
|
---|
677 | setAddrWindow(x, y, x+w-1, y+h-1);
|
---|
678 | */
|
---|
679 |
|
---|
680 | for (row=0; row<h; row++) { // For each scanline...
|
---|
681 | // Seek to start of scan line. It might seem labor-
|
---|
682 | // intensive to be doing this on every line, but this
|
---|
683 | // method covers a lot of gritty details like cropping
|
---|
684 | // and scanline padding. Also, the seek only takes
|
---|
685 | // place if the file position actually needs to change
|
---|
686 | // (avoids a lot of cluster math in SD library).
|
---|
687 | if(img._flip) // Bitmap is stored bottom-to-top order (normal BMP)
|
---|
688 | pos = img._bmpImageoffset + (img._bmpHeight - 1 - row) * img._rowSize;
|
---|
689 | else // Bitmap is stored top-to-bottom
|
---|
690 | pos = img._bmpImageoffset + row * img._rowSize;
|
---|
691 | if(img._bmpFile.position() != pos) { // Need seek?
|
---|
692 | img._bmpFile.seek(pos);
|
---|
693 | buffidx = sizeof(sdbuffer); // Force buffer reload
|
---|
694 | }
|
---|
695 |
|
---|
696 | for (col=0; col<w; col++) { // For each pixel...
|
---|
697 | // Time to read more pixel data?
|
---|
698 | if (buffidx >= sizeof(sdbuffer)) { // Indeed
|
---|
699 | img._bmpFile.read(sdbuffer, sizeof(sdbuffer));
|
---|
700 | buffidx = 0; // Set index to beginning
|
---|
701 | }
|
---|
702 |
|
---|
703 | // Convert pixel from BMP to TFT format, push to display
|
---|
704 | b = sdbuffer[buffidx++];
|
---|
705 | g = sdbuffer[buffidx++];
|
---|
706 | r = sdbuffer[buffidx++];
|
---|
707 | //pushColor(tft.Color565(r,g,b));
|
---|
708 | drawPixel(x + col, y + row, newColor(r, g, b));
|
---|
709 |
|
---|
710 | } // end pixel
|
---|
711 | } // end scanline
|
---|
712 |
|
---|
713 | }
|
---|
714 |
|
---|
715 | #endif
|
---|