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 <string.h>
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35 | #include <stdlib.h>
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36 | #include <kernel.h>
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37 | #include "adafruit_gfx.h"
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38 | #include "draw_font.h"
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39 | #ifdef __AVR__
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40 | #include <avr/pgmspace.h>
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41 | #elif defined(ESP8266) || defined(ESP32)
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42 | #include <pgmspace.h>
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43 | #endif
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44 |
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45 | // Many (but maybe not all) non-AVR board installs define macros
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46 | // for compatibility with existing PROGMEM-reading AVR code.
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47 | // Do our own checks and defines here for good measure...
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48 |
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49 | #ifndef pgm_read_byte
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50 | #define pgm_read_byte(addr) (*(const unsigned char *)(addr))
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51 | #endif
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52 | #ifndef pgm_read_word
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53 | #define pgm_read_word(addr) (*(const unsigned short *)(addr))
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54 | #endif
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55 | #ifndef pgm_read_dword
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56 | #define pgm_read_dword(addr) (*(const unsigned long *)(addr))
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57 | #endif
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58 |
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59 | // Pointers are a peculiar case...typically 16-bit on AVR boards,
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60 | // 32 bits elsewhere. Try to accommodate both...
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61 |
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62 | #if !defined(__INT_MAX__) || (__INT_MAX__ > 0xFFFF)
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63 | #define pgm_read_pointer(addr) ((void *)pgm_read_dword(addr))
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64 | #else
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65 | #define pgm_read_pointer(addr) ((void *)pgm_read_word(addr))
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66 | #endif
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67 |
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68 | #ifndef min
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69 | #define min(a,b) (((a) < (b)) ? (a) : (b))
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70 | #endif
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71 |
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72 | #ifndef _swap_int16_t
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73 | #define _swap_int16_t(a, b) { int16_t t = a; a = b; b = t; }
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74 | #endif
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75 |
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76 | /**************************************************************************/
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77 | /*!
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78 | @brief Instatiate a GFX context for graphics! Can only be done by a superclass
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79 | @param w Display width, in pixels
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80 | @param h Display height, in pixels
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81 | */
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82 | /**************************************************************************/
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83 | void lcd_adafruit_gfx(LCD_Handler_t *lcd, int16_t w, int16_t h)
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84 | {
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85 | lcd->_width = w;
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86 | lcd->_height = h;
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87 | lcd->rotation = 0;
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88 | lcd->cursor_y = lcd->cursor_x = 0;
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89 | lcd->textsize = 1;
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90 | lcd->textcolor = lcd->textbgcolor = 0xFFFF;
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91 | lcd->wrap = true;
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92 | lcd->gfxFont = NULL;
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93 | }
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94 |
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95 | /**************************************************************************/
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96 | /*!
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97 | @brief Write a line. Bresenham's algorithm - thx wikpedia
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98 | @param x0 Start point x coordinate
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99 | @param y0 Start point y coordinate
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100 | @param x1 End point x coordinate
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101 | @param y1 End point y coordinate
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102 | @param color 16-bit 5-6-5 Color to draw with
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103 | */
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104 | /**************************************************************************/
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105 | void lcd_writeLine(LCD_Handler_t *lcd, int16_t x0, int16_t y0, int16_t x1, int16_t y1,
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106 | uint16_t color)
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107 | {
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108 | int16_t steep = abs(y1 - y0) > abs(x1 - x0);
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109 | if (steep) {
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110 | _swap_int16_t(x0, y0);
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111 | _swap_int16_t(x1, y1);
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112 | }
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113 |
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114 | if (x0 > x1) {
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115 | _swap_int16_t(x0, x1);
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116 | _swap_int16_t(y0, y1);
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117 | }
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118 |
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119 | int16_t dx, dy;
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120 | dx = x1 - x0;
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121 | dy = abs(y1 - y0);
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122 |
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123 | int16_t err = dx / 2;
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124 | int16_t ystep;
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125 |
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126 | if (y0 < y1) {
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127 | ystep = 1;
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128 | }
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129 | else {
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130 | ystep = -1;
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131 | }
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132 |
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133 | for (; x0 <= x1; x0++) {
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134 | if (steep) {
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135 | lcd_writePixel(lcd, y0, x0, color);
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136 | }
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137 | else {
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138 | lcd_writePixel(lcd, x0, y0, color);
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139 | }
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140 | err -= dy;
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141 | if (err < 0) {
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142 | y0 += ystep;
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143 | err += dx;
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144 | }
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145 | }
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146 | }
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147 |
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148 | /**************************************************************************/
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149 | /*!
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150 | @brief Start a display-writing routine, overwrite in subclasses.
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151 | */
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152 | /**************************************************************************/
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153 | void lcd_startWrite(LCD_Handler_t *lcd)
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154 | {
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155 | }
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156 |
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157 | /**************************************************************************/
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158 | /*!
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159 | @brief Write a pixel, overwrite in subclasses if startWrite is defined!
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160 | @param x x coordinate
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161 | @param y y coordinate
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162 | @param color 16-bit 5-6-5 Color to fill with
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163 | */
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164 | /**************************************************************************/
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165 | void lcd_writePixel(LCD_Handler_t *lcd, int16_t x, int16_t y, uint16_t color)
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166 | {
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167 | lcd_drawPixel(lcd, x, y, color);
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168 | }
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169 |
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170 | /**************************************************************************/
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171 | /*!
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172 | @brief Write a perfectly vertical line, overwrite in subclasses if startWrite is defined!
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173 | @param x Top-most x coordinate
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174 | @param y Top-most y coordinate
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175 | @param h Height in pixels
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176 | @param color 16-bit 5-6-5 Color to fill with
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177 | */
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178 | /**************************************************************************/
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179 | void lcd_writeFastVLine(LCD_Handler_t *lcd, int16_t x, int16_t y,
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180 | int16_t h, uint16_t color)
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181 | {
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182 | // Overwrite in subclasses if startWrite is defined!
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183 | // Can be just lcd_writeLine(lcd, x, y, x, y+h-1, color);
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184 | // or lcd_writeFillRect(lcd, x, y, 1, h, color);
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185 | lcd_drawFastVLine(lcd, x, y, h, color);
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186 | }
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187 |
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188 | /**************************************************************************/
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189 | /*!
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190 | @brief Write a perfectly horizontal line, overwrite in subclasses if startWrite is defined!
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191 | @param x Left-most x coordinate
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192 | @param y Left-most y coordinate
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193 | @param w Width in pixels
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194 | @param color 16-bit 5-6-5 Color to fill with
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195 | */
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196 | /**************************************************************************/
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197 | void lcd_writeFastHLine(LCD_Handler_t *lcd, int16_t x, int16_t y,
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198 | int16_t w, uint16_t color)
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199 | {
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200 | // Overwrite in subclasses if startWrite is defined!
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201 | // Example: lcd_writeLine(lcd, x, y, x+w-1, y, color);
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202 | // or lcd_writeFillRect(lcd, x, y, w, 1, color);
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203 | lcd_drawFastHLine(lcd, x, y, w, color);
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204 | }
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205 |
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206 | /**************************************************************************/
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207 | /*!
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208 | @brief Write a rectangle completely with one color, overwrite in subclasses if startWrite is defined!
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209 | @param x Top left corner x coordinate
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210 | @param y Top left corner y coordinate
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211 | @param w Width in pixels
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212 | @param h Height in pixels
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213 | @param color 16-bit 5-6-5 Color to fill with
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214 | */
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215 | /**************************************************************************/
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216 | void lcd_writeFillRect(LCD_Handler_t *lcd, int16_t x, int16_t y, int16_t w, int16_t h,
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217 | uint16_t color)
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218 | {
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219 | // Overwrite in subclasses if desired!
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220 | gfx_fillRect(lcd, x, y, w, h, color);
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221 | }
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222 |
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223 | /**************************************************************************/
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224 | /*!
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225 | @brief End a display-writing routine, overwrite in subclasses if startWrite is defined!
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226 | */
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227 | /**************************************************************************/
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228 | void lcd_endWrite(LCD_Handler_t *lcd)
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229 | {
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230 | }
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231 |
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232 | /**************************************************************************/
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233 | /*!
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234 | @brief Draw a perfectly vertical line (this is often optimized in a subclass!)
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235 | @param x Top-most x coordinate
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236 | @param y Top-most y coordinate
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237 | @param h Height in pixels
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238 | @param color 16-bit 5-6-5 Color to fill with
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239 | */
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240 | /**************************************************************************/
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241 | void lcd_drawFastVLine_(LCD_Handler_t *lcd, int16_t x, int16_t y,
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242 | int16_t h, uint16_t color)
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243 | {
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244 | lcd_startWrite(lcd);
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245 | lcd_writeLine(lcd, x, y, x, y + h - 1, color);
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246 | lcd_endWrite(lcd);
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247 | }
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248 |
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249 | /**************************************************************************/
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250 | /*!
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251 | @brief Draw a perfectly horizontal line (this is often optimized in a subclass!)
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252 | @param x Left-most x coordinate
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253 | @param y Left-most y coordinate
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254 | @param w Width in pixels
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255 | @param color 16-bit 5-6-5 Color to fill with
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256 | */
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257 | /**************************************************************************/
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258 | void lcd_drawFastHLine_(LCD_Handler_t *lcd, int16_t x, int16_t y,
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259 | int16_t w, uint16_t color)
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260 | {
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261 | lcd_startWrite(lcd);
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262 | lcd_writeLine(lcd, x, y, x + w - 1, y, color);
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263 | lcd_endWrite(lcd);
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264 | }
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265 |
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266 | /**************************************************************************/
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267 | /*!
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268 | @brief Fill a rectangle completely with one color. Update in subclasses if desired!
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269 | @param x Top left corner x coordinate
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270 | @param y Top left corner y coordinate
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271 | @param w Width in pixels
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272 | @param h Height in pixels
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273 | @param color 16-bit 5-6-5 Color to fill with
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274 | */
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275 | /**************************************************************************/
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276 | void gfx_fillRect(LCD_Handler_t *lcd, int16_t x, int16_t y, int16_t w, int16_t h,
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277 | uint16_t color)
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278 | {
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279 | lcd_startWrite(lcd);
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280 | for (int16_t i = x; i < x + w; i++) {
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281 | lcd_writeFastVLine(lcd, i, y, h, color);
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282 | }
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283 | lcd_endWrite(lcd);
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284 | }
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285 |
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286 | /**************************************************************************/
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287 | /*!
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288 | @brief Fill the screen completely with one color. Update in subclasses if desired!
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289 | @param color 16-bit 5-6-5 Color to fill with
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290 | */
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291 | /**************************************************************************/
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292 | void gfx_fillScreen(LCD_Handler_t *lcd, uint16_t color)
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293 | {
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294 | gfx_fillRect(lcd, 0, 0, lcd->_width, lcd->_height, color);
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295 | }
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296 |
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297 | /**************************************************************************/
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298 | /*!
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299 | @brief Draw a line
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300 | @param x0 Start point x coordinate
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301 | @param y0 Start point y coordinate
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302 | @param x1 End point x coordinate
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303 | @param y1 End point y coordinate
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304 | @param color 16-bit 5-6-5 Color to draw with
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305 | */
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306 | /**************************************************************************/
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307 | void gfx_drawLine(LCD_Handler_t *lcd, int16_t x0, int16_t y0, int16_t x1, int16_t y1,
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308 | uint16_t color)
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309 | {
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310 | // Update in subclasses if desired!
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311 | if (x0 == x1) {
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312 | if (y0 > y1) _swap_int16_t(y0, y1);
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313 | lcd_drawFastVLine(lcd, x0, y0, y1 - y0 + 1, color);
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314 | }
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315 | else if (y0 == y1) {
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316 | if (x0 > x1) _swap_int16_t(x0, x1);
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317 | lcd_drawFastHLine(lcd, x0, y0, x1 - x0 + 1, color);
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318 | }
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319 | else {
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320 | lcd_startWrite(lcd);
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321 | lcd_writeLine(lcd, x0, y0, x1, y1, color);
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322 | lcd_endWrite(lcd);
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323 | }
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324 | }
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325 |
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326 | /**************************************************************************/
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327 | /*!
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328 | @brief Draw a circle outline
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329 | @param x0 Center-point x coordinate
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330 | @param y0 Center-point y coordinate
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331 | @param r Radius of circle
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332 | @param color 16-bit 5-6-5 Color to draw with
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333 | */
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334 | /**************************************************************************/
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335 | void lcd_drawCircle(LCD_Handler_t *lcd, int16_t x0, int16_t y0, int16_t r,
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336 | uint16_t color)
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337 | {
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338 | int16_t f = 1 - r;
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339 | int16_t ddF_x = 1;
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340 | int16_t ddF_y = -2 * r;
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341 | int16_t x = 0;
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342 | int16_t y = r;
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343 |
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344 | lcd_startWrite(lcd);
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345 | lcd_writePixel(lcd, x0, y0 + r, color);
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346 | lcd_writePixel(lcd, x0, y0 - r, color);
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347 | lcd_writePixel(lcd, x0 + r, y0, color);
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348 | lcd_writePixel(lcd, x0 - r, y0, color);
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349 |
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350 | while (x < y) {
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351 | if (f >= 0) {
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352 | y--;
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353 | ddF_y += 2;
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354 | f += ddF_y;
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355 | }
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356 | x++;
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357 | ddF_x += 2;
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358 | f += ddF_x;
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359 |
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360 | lcd_writePixel(lcd, x0 + x, y0 + y, color);
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361 | lcd_writePixel(lcd, x0 - x, y0 + y, color);
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362 | lcd_writePixel(lcd, x0 + x, y0 - y, color);
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363 | lcd_writePixel(lcd, x0 - x, y0 - y, color);
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364 | lcd_writePixel(lcd, x0 + y, y0 + x, color);
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365 | lcd_writePixel(lcd, x0 - y, y0 + x, color);
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366 | lcd_writePixel(lcd, x0 + y, y0 - x, color);
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367 | lcd_writePixel(lcd, x0 - y, y0 - x, color);
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368 | }
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369 | lcd_endWrite(lcd);
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370 | }
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371 |
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372 | /**************************************************************************/
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373 | /*!
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374 | @brief Quarter-circle drawer, used to do circles and roundrects
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375 | @param x0 Center-point x coordinate
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376 | @param y0 Center-point y coordinate
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377 | @param r Radius of circle
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378 | @param cornername Mask bit #1 or bit #2 to indicate which quarters of the circle we're doing
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379 | @param color 16-bit 5-6-5 Color to draw with
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380 | */
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381 | /**************************************************************************/
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382 | void lcd_drawCircleHelper(LCD_Handler_t *lcd, int16_t x0, int16_t y0,
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383 | int16_t r, uint8_t cornername, uint16_t color)
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384 | {
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385 | int16_t f = 1 - r;
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386 | int16_t ddF_x = 1;
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387 | int16_t ddF_y = -2 * r;
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388 | int16_t x = 0;
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389 | int16_t y = r;
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390 |
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391 | while (x < y) {
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392 | if (f >= 0) {
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393 | y--;
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394 | ddF_y += 2;
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395 | f += ddF_y;
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396 | }
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397 | x++;
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398 | ddF_x += 2;
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399 | f += ddF_x;
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400 | if (cornername & 0x4) {
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401 | lcd_writePixel(lcd, x0 + x, y0 + y, color);
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402 | lcd_writePixel(lcd, x0 + y, y0 + x, color);
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403 | }
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404 | if (cornername & 0x2) {
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405 | lcd_writePixel(lcd, x0 + x, y0 - y, color);
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406 | lcd_writePixel(lcd, x0 + y, y0 - x, color);
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407 | }
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408 | if (cornername & 0x8) {
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409 | lcd_writePixel(lcd, x0 - y, y0 + x, color);
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410 | lcd_writePixel(lcd, x0 - x, y0 + y, color);
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411 | }
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412 | if (cornername & 0x1) {
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413 | lcd_writePixel(lcd, x0 - y, y0 - x, color);
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414 | lcd_writePixel(lcd, x0 - x, y0 - y, color);
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415 | }
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416 | }
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417 | }
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418 |
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419 | /**************************************************************************/
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420 | /*!
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421 | @brief Draw a circle with filled color
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422 | @param x0 Center-point x coordinate
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423 | @param y0 Center-point y coordinate
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424 | @param r Radius of circle
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425 | @param color 16-bit 5-6-5 Color to fill with
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426 | */
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427 | /**************************************************************************/
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428 | void lcd_fillCircle(LCD_Handler_t *lcd, int16_t x0, int16_t y0, int16_t r,
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429 | uint16_t color)
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430 | {
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431 | lcd_startWrite(lcd);
|
---|
432 | lcd_writeFastVLine(lcd, x0, y0 - r, 2 * r + 1, color);
|
---|
433 | lcd_fillCircleHelper(lcd, x0, y0, r, 3, 0, color);
|
---|
434 | lcd_endWrite(lcd);
|
---|
435 | }
|
---|
436 |
|
---|
437 |
|
---|
438 | /**************************************************************************/
|
---|
439 | /*!
|
---|
440 | @brief Quarter-circle drawer with fill, used to do circles and roundrects
|
---|
441 | @param x0 Center-point x coordinate
|
---|
442 | @param y0 Center-point y coordinate
|
---|
443 | @param r Radius of circle
|
---|
444 | @param cornername Mask bit #1 or bit #2 to indicate which quarters of the circle we're doing
|
---|
445 | @param delta Offset from center-point, used for round-rects
|
---|
446 | @param color 16-bit 5-6-5 Color to fill with
|
---|
447 | */
|
---|
448 | /**************************************************************************/
|
---|
449 | void lcd_fillCircleHelper(LCD_Handler_t *lcd, int16_t x0, int16_t y0, int16_t r,
|
---|
450 | uint8_t cornername, int16_t delta, uint16_t color)
|
---|
451 | {
|
---|
452 | int16_t f = 1 - r;
|
---|
453 | int16_t ddF_x = 1;
|
---|
454 | int16_t ddF_y = -2 * r;
|
---|
455 | int16_t x = 0;
|
---|
456 | int16_t y = r;
|
---|
457 |
|
---|
458 | while (x < y) {
|
---|
459 | if (f >= 0) {
|
---|
460 | y--;
|
---|
461 | ddF_y += 2;
|
---|
462 | f += ddF_y;
|
---|
463 | }
|
---|
464 | x++;
|
---|
465 | ddF_x += 2;
|
---|
466 | f += ddF_x;
|
---|
467 |
|
---|
468 | if (cornername & 0x1) {
|
---|
469 | lcd_writeFastVLine(lcd, x0 + x, y0 - y, 2 * y + 1 + delta, color);
|
---|
470 | lcd_writeFastVLine(lcd, x0 + y, y0 - x, 2 * x + 1 + delta, color);
|
---|
471 | }
|
---|
472 | if (cornername & 0x2) {
|
---|
473 | lcd_writeFastVLine(lcd, x0 - x, y0 - y, 2 * y + 1 + delta, color);
|
---|
474 | lcd_writeFastVLine(lcd, x0 - y, y0 - x, 2 * x + 1 + delta, color);
|
---|
475 | }
|
---|
476 | }
|
---|
477 | }
|
---|
478 |
|
---|
479 | /**************************************************************************/
|
---|
480 | /*!
|
---|
481 | @brief Draw a rectangle with no fill color
|
---|
482 | @param x Top left corner x coordinate
|
---|
483 | @param y Top left corner y coordinate
|
---|
484 | @param w Width in pixels
|
---|
485 | @param h Height in pixels
|
---|
486 | @param color 16-bit 5-6-5 Color to draw with
|
---|
487 | */
|
---|
488 | /**************************************************************************/
|
---|
489 | void gfx_drawRect(LCD_Handler_t *lcd, int16_t x, int16_t y, int16_t w, int16_t h,
|
---|
490 | uint16_t color)
|
---|
491 | {
|
---|
492 | lcd_startWrite(lcd);
|
---|
493 | lcd_writeFastHLine(lcd, x, y, w, color);
|
---|
494 | lcd_writeFastHLine(lcd, x, y + h - 1, w, color);
|
---|
495 | lcd_writeFastVLine(lcd, x, y, h, color);
|
---|
496 | lcd_writeFastVLine(lcd, x + w - 1, y, h, color);
|
---|
497 | lcd_endWrite(lcd);
|
---|
498 | }
|
---|
499 |
|
---|
500 | /**************************************************************************/
|
---|
501 | /*!
|
---|
502 | @brief Draw a rounded rectangle with no fill color
|
---|
503 | @param x Top left corner x coordinate
|
---|
504 | @param y Top left corner y coordinate
|
---|
505 | @param w Width in pixels
|
---|
506 | @param h Height in pixels
|
---|
507 | @param r Radius of corner rounding
|
---|
508 | @param color 16-bit 5-6-5 Color to draw with
|
---|
509 | */
|
---|
510 | /**************************************************************************/
|
---|
511 | void lcd_drawRoundRect(LCD_Handler_t *lcd, int16_t x, int16_t y, int16_t w,
|
---|
512 | int16_t h, int16_t r, uint16_t color)
|
---|
513 | {
|
---|
514 | // smarter version
|
---|
515 | lcd_startWrite(lcd);
|
---|
516 | lcd_writeFastHLine(lcd, x + r, y, w - 2 * r, color); // Top
|
---|
517 | lcd_writeFastHLine(lcd, x + r, y + h - 1, w - 2 * r, color); // Bottom
|
---|
518 | lcd_writeFastVLine(lcd, x, y + r, h - 2 * r, color); // Left
|
---|
519 | lcd_writeFastVLine(lcd, x + w - 1, y + r, h - 2 * r, color); // Right
|
---|
520 | // draw four corners
|
---|
521 | lcd_drawCircleHelper(lcd, x + r, y + r, r, 1, color);
|
---|
522 | lcd_drawCircleHelper(lcd, x + w - r - 1, y + r, r, 2, color);
|
---|
523 | lcd_drawCircleHelper(lcd, x + w - r - 1, y + h - r - 1, r, 4, color);
|
---|
524 | lcd_drawCircleHelper(lcd, x + r, y + h - r - 1, r, 8, color);
|
---|
525 | lcd_endWrite(lcd);
|
---|
526 | }
|
---|
527 |
|
---|
528 | /**************************************************************************/
|
---|
529 | /*!
|
---|
530 | @brief Draw a rounded rectangle with fill color
|
---|
531 | @param x Top left corner x coordinate
|
---|
532 | @param y Top left corner y coordinate
|
---|
533 | @param w Width in pixels
|
---|
534 | @param h Height in pixels
|
---|
535 | @param r Radius of corner rounding
|
---|
536 | @param color 16-bit 5-6-5 Color to draw/fill with
|
---|
537 | */
|
---|
538 | /**************************************************************************/
|
---|
539 | void lcd_fillRoundRect(LCD_Handler_t *lcd, int16_t x, int16_t y, int16_t w,
|
---|
540 | int16_t h, int16_t r, uint16_t color)
|
---|
541 | {
|
---|
542 | // smarter version
|
---|
543 | lcd_startWrite(lcd);
|
---|
544 | lcd_writeFillRect(lcd, x + r, y, w - 2 * r, h, color);
|
---|
545 |
|
---|
546 | // draw four corners
|
---|
547 | lcd_fillCircleHelper(lcd, x + w - r - 1, y + r, r, 1, h - 2 * r - 1, color);
|
---|
548 | lcd_fillCircleHelper(lcd, x + r, y + r, r, 2, h - 2 * r - 1, color);
|
---|
549 | lcd_endWrite(lcd);
|
---|
550 | }
|
---|
551 |
|
---|
552 | /**************************************************************************/
|
---|
553 | /*!
|
---|
554 | @brief Draw a triangle with no fill color
|
---|
555 | @param x0 Vertex #0 x coordinate
|
---|
556 | @param y0 Vertex #0 y coordinate
|
---|
557 | @param x1 Vertex #1 x coordinate
|
---|
558 | @param y1 Vertex #1 y coordinate
|
---|
559 | @param x2 Vertex #2 x coordinate
|
---|
560 | @param y2 Vertex #2 y coordinate
|
---|
561 | @param color 16-bit 5-6-5 Color to draw with
|
---|
562 | */
|
---|
563 | /**************************************************************************/
|
---|
564 | void lcd_drawTriangle(LCD_Handler_t *lcd, int16_t x0, int16_t y0,
|
---|
565 | int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color)
|
---|
566 | {
|
---|
567 | gfx_drawLine(lcd, x0, y0, x1, y1, color);
|
---|
568 | gfx_drawLine(lcd, x1, y1, x2, y2, color);
|
---|
569 | gfx_drawLine(lcd, x2, y2, x0, y0, color);
|
---|
570 | }
|
---|
571 |
|
---|
572 | /**************************************************************************/
|
---|
573 | /*!
|
---|
574 | @brief Draw a triangle with color-fill
|
---|
575 | @param x0 Vertex #0 x coordinate
|
---|
576 | @param y0 Vertex #0 y coordinate
|
---|
577 | @param x1 Vertex #1 x coordinate
|
---|
578 | @param y1 Vertex #1 y coordinate
|
---|
579 | @param x2 Vertex #2 x coordinate
|
---|
580 | @param y2 Vertex #2 y coordinate
|
---|
581 | @param color 16-bit 5-6-5 Color to fill/draw with
|
---|
582 | */
|
---|
583 | /**************************************************************************/
|
---|
584 | void lcd_fillTriangle(LCD_Handler_t *lcd, int16_t x0, int16_t y0,
|
---|
585 | int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color)
|
---|
586 | {
|
---|
587 | int16_t a, b, y, last;
|
---|
588 |
|
---|
589 | // Sort coordinates by Y order (y2 >= y1 >= y0)
|
---|
590 | if (y0 > y1) {
|
---|
591 | _swap_int16_t(y0, y1); _swap_int16_t(x0, x1);
|
---|
592 | }
|
---|
593 | if (y1 > y2) {
|
---|
594 | _swap_int16_t(y2, y1); _swap_int16_t(x2, x1);
|
---|
595 | }
|
---|
596 | if (y0 > y1) {
|
---|
597 | _swap_int16_t(y0, y1); _swap_int16_t(x0, x1);
|
---|
598 | }
|
---|
599 |
|
---|
600 | lcd_startWrite(lcd);
|
---|
601 | if (y0 == y2) { // Handle awkward all-on-same-line case as its own thing
|
---|
602 | a = b = x0;
|
---|
603 | if (x1 < a) a = x1;
|
---|
604 | else if (x1 > b) b = x1;
|
---|
605 | if (x2 < a) a = x2;
|
---|
606 | else if (x2 > b) b = x2;
|
---|
607 | lcd_writeFastHLine(lcd, a, y0, b - a + 1, color);
|
---|
608 | lcd_endWrite(lcd);
|
---|
609 | return;
|
---|
610 | }
|
---|
611 |
|
---|
612 | int16_t
|
---|
613 | dx01 = x1 - x0,
|
---|
614 | dy01 = y1 - y0,
|
---|
615 | dx02 = x2 - x0,
|
---|
616 | dy02 = y2 - y0,
|
---|
617 | dx12 = x2 - x1,
|
---|
618 | dy12 = y2 - y1;
|
---|
619 | int32_t
|
---|
620 | sa = 0,
|
---|
621 | sb = 0;
|
---|
622 |
|
---|
623 | // For upper part of triangle, find scanline crossings for segments
|
---|
624 | // 0-1 and 0-2. If y1=y2 (flat-bottomed triangle), the scanline y1
|
---|
625 | // is included here (and second loop will be skipped, avoiding a /0
|
---|
626 | // error there), otherwise scanline y1 is skipped here and handled
|
---|
627 | // in the second loop...which also avoids a /0 error here if y0=y1
|
---|
628 | // (flat-topped triangle).
|
---|
629 | if (y1 == y2) last = y1; // Include y1 scanline
|
---|
630 | else last = y1 - 1; // Skip it
|
---|
631 |
|
---|
632 | for (y = y0; y <= last; y++) {
|
---|
633 | a = x0 + sa / dy01;
|
---|
634 | b = x0 + sb / dy02;
|
---|
635 | sa += dx01;
|
---|
636 | sb += dx02;
|
---|
637 | /* longhand:
|
---|
638 | a = x0 + (x1 - x0) * (y - y0) / (y1 - y0);
|
---|
639 | b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
|
---|
640 | */
|
---|
641 | if (a > b) _swap_int16_t(a, b);
|
---|
642 | lcd_writeFastHLine(lcd, a, y, b - a + 1, color);
|
---|
643 | }
|
---|
644 |
|
---|
645 | // For lower part of triangle, find scanline crossings for segments
|
---|
646 | // 0-2 and 1-2. This loop is skipped if y1=y2.
|
---|
647 | sa = dx12 * (y - y1);
|
---|
648 | sb = dx02 * (y - y0);
|
---|
649 | for (; y <= y2; y++) {
|
---|
650 | a = x1 + sa / dy12;
|
---|
651 | b = x0 + sb / dy02;
|
---|
652 | sa += dx12;
|
---|
653 | sb += dx02;
|
---|
654 | /* longhand:
|
---|
655 | a = x1 + (x2 - x1) * (y - y1) / (y2 - y1);
|
---|
656 | b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
|
---|
657 | */
|
---|
658 | if (a > b) _swap_int16_t(a, b);
|
---|
659 | lcd_writeFastHLine(lcd, a, y, b - a + 1, color);
|
---|
660 | }
|
---|
661 | lcd_endWrite(lcd);
|
---|
662 | }
|
---|
663 |
|
---|
664 | // BITMAP / XBITMAP / GRAYSCALE / RGB BITMAP FUNCTIONS ---------------------
|
---|
665 |
|
---|
666 | /**************************************************************************/
|
---|
667 | /*!
|
---|
668 | @brief Draw a PROGMEM-resident 1-bit image at the specified (x,y) position, using the specified foreground color (unset bits are transparent).
|
---|
669 | @param x Top left corner x coordinate
|
---|
670 | @param y Top left corner y coordinate
|
---|
671 | @param bitmap byte array with monochrome bitmap
|
---|
672 | @param w Width of bitmap in pixels
|
---|
673 | @param h Hieght of bitmap in pixels
|
---|
674 | @param color 16-bit 5-6-5 Color to draw with
|
---|
675 | */
|
---|
676 | /**************************************************************************/
|
---|
677 | void lcd_drawBitmap1(LCD_Handler_t *lcd, int16_t x, int16_t y,
|
---|
678 | const uint8_t bitmap[], int16_t w, int16_t h, uint16_t color)
|
---|
679 | {
|
---|
680 | int16_t byteWidth = (w + 7) / 8; // Bitmap scanline pad = whole byte
|
---|
681 | uint8_t byte = 0;
|
---|
682 |
|
---|
683 | lcd_startWrite(lcd);
|
---|
684 | for (int16_t j = 0; j < h; j++, y++) {
|
---|
685 | for (int16_t i = 0; i < w; i++) {
|
---|
686 | if (i & 7) byte <<= 1;
|
---|
687 | else byte = pgm_read_byte(&bitmap[j * byteWidth + i / 8]);
|
---|
688 | if (byte & 0x80) lcd_writePixel(lcd, x + i, y, color);
|
---|
689 | }
|
---|
690 | }
|
---|
691 | lcd_endWrite(lcd);
|
---|
692 | }
|
---|
693 |
|
---|
694 | /**************************************************************************/
|
---|
695 | /*!
|
---|
696 | @brief Draw a PROGMEM-resident 1-bit image at the specified (x,y) position, using the specified foreground (for set bits) and background (unset bits) colors.
|
---|
697 | @param x Top left corner x coordinate
|
---|
698 | @param y Top left corner y coordinate
|
---|
699 | @param bitmap byte array with monochrome bitmap
|
---|
700 | @param w Width of bitmap in pixels
|
---|
701 | @param h Hieght of bitmap in pixels
|
---|
702 | @param color 16-bit 5-6-5 Color to draw pixels with
|
---|
703 | @param bg 16-bit 5-6-5 Color to draw background with
|
---|
704 | */
|
---|
705 | /**************************************************************************/
|
---|
706 | void lcd_drawBitmap2(LCD_Handler_t *lcd, int16_t x, int16_t y,
|
---|
707 | const uint8_t bitmap[], int16_t w, int16_t h,
|
---|
708 | uint16_t color, uint16_t bg)
|
---|
709 | {
|
---|
710 | int16_t byteWidth = (w + 7) / 8; // Bitmap scanline pad = whole byte
|
---|
711 | uint8_t byte = 0;
|
---|
712 |
|
---|
713 | lcd_startWrite(lcd);
|
---|
714 | for (int16_t j = 0; j < h; j++, y++) {
|
---|
715 | for (int16_t i = 0; i < w; i++) {
|
---|
716 | if (i & 7) byte <<= 1;
|
---|
717 | else byte = pgm_read_byte(&bitmap[j * byteWidth + i / 8]);
|
---|
718 | lcd_writePixel(lcd, x + i, y, (byte & 0x80) ? color : bg);
|
---|
719 | }
|
---|
720 | }
|
---|
721 | lcd_endWrite(lcd);
|
---|
722 | }
|
---|
723 |
|
---|
724 | /**************************************************************************/
|
---|
725 | /*!
|
---|
726 | @brief Draw a RAM-resident 1-bit image at the specified (x,y) position, using the specified foreground color (unset bits are transparent).
|
---|
727 | @param x Top left corner x coordinate
|
---|
728 | @param y Top left corner y coordinate
|
---|
729 | @param bitmap byte array with monochrome bitmap
|
---|
730 | @param w Width of bitmap in pixels
|
---|
731 | @param h Hieght of bitmap in pixels
|
---|
732 | @param color 16-bit 5-6-5 Color to draw with
|
---|
733 | */
|
---|
734 | /**************************************************************************/
|
---|
735 | void lcd_drawBitmap3(LCD_Handler_t *lcd, int16_t x, int16_t y,
|
---|
736 | uint8_t *bitmap, int16_t w, int16_t h, uint16_t color)
|
---|
737 | {
|
---|
738 | int16_t byteWidth = (w + 7) / 8; // Bitmap scanline pad = whole byte
|
---|
739 | uint8_t byte = 0;
|
---|
740 |
|
---|
741 | lcd_startWrite(lcd);
|
---|
742 | for (int16_t j = 0; j < h; j++, y++) {
|
---|
743 | for (int16_t i = 0; i < w; i++) {
|
---|
744 | if (i & 7) byte <<= 1;
|
---|
745 | else byte = bitmap[j * byteWidth + i / 8];
|
---|
746 | if (byte & 0x80) lcd_writePixel(lcd, x + i, y, color);
|
---|
747 | }
|
---|
748 | }
|
---|
749 | lcd_endWrite(lcd);
|
---|
750 | }
|
---|
751 |
|
---|
752 | /**************************************************************************/
|
---|
753 | /*!
|
---|
754 | @brief Draw a RAM-resident 1-bit image at the specified (x,y) position, using the specified foreground (for set bits) and background (unset bits) colors.
|
---|
755 | @param x Top left corner x coordinate
|
---|
756 | @param y Top left corner y coordinate
|
---|
757 | @param bitmap byte array with monochrome bitmap
|
---|
758 | @param w Width of bitmap in pixels
|
---|
759 | @param h Hieght of bitmap in pixels
|
---|
760 | @param color 16-bit 5-6-5 Color to draw pixels with
|
---|
761 | @param bg 16-bit 5-6-5 Color to draw background with
|
---|
762 | */
|
---|
763 | /**************************************************************************/
|
---|
764 | void lcd_drawBitmap4(LCD_Handler_t *lcd, int16_t x, int16_t y,
|
---|
765 | uint8_t *bitmap, int16_t w, int16_t h, uint16_t color, uint16_t bg)
|
---|
766 | {
|
---|
767 | int16_t byteWidth = (w + 7) / 8; // Bitmap scanline pad = whole byte
|
---|
768 | uint8_t byte = 0;
|
---|
769 |
|
---|
770 | lcd_startWrite(lcd);
|
---|
771 | for (int16_t j = 0; j < h; j++, y++) {
|
---|
772 | for (int16_t i = 0; i < w; i++) {
|
---|
773 | if (i & 7) byte <<= 1;
|
---|
774 | else byte = bitmap[j * byteWidth + i / 8];
|
---|
775 | lcd_writePixel(lcd, x + i, y, (byte & 0x80) ? color : bg);
|
---|
776 | }
|
---|
777 | }
|
---|
778 | lcd_endWrite(lcd);
|
---|
779 | }
|
---|
780 |
|
---|
781 | /**************************************************************************/
|
---|
782 | /*!
|
---|
783 | @brief Draw PROGMEM-resident XBitMap Files (*.xbm), exported from GIMP.
|
---|
784 | Usage: Export from GIMP to *.xbm, rename *.xbm to *.c and open in editor.
|
---|
785 | C Array can be directly used with this function.
|
---|
786 | There is no RAM-resident version of this function; if generating bitmaps
|
---|
787 | in RAM, use the format defined by drawBitmap() and call that instead.
|
---|
788 | @param x Top left corner x coordinate
|
---|
789 | @param y Top left corner y coordinate
|
---|
790 | @param bitmap byte array with monochrome bitmap
|
---|
791 | @param w Width of bitmap in pixels
|
---|
792 | @param h Hieght of bitmap in pixels
|
---|
793 | @param color 16-bit 5-6-5 Color to draw pixels with
|
---|
794 | */
|
---|
795 | /**************************************************************************/
|
---|
796 | void lcd_drawXBitmap(LCD_Handler_t *lcd, int16_t x, int16_t y,
|
---|
797 | const uint8_t bitmap[], int16_t w, int16_t h, uint16_t color)
|
---|
798 | {
|
---|
799 | int16_t byteWidth = (w + 7) / 8; // Bitmap scanline pad = whole byte
|
---|
800 | uint8_t byte = 0;
|
---|
801 |
|
---|
802 | lcd_startWrite(lcd);
|
---|
803 | for (int16_t j = 0; j < h; j++, y++) {
|
---|
804 | for (int16_t i = 0; i < w; i++) {
|
---|
805 | if (i & 7) byte >>= 1;
|
---|
806 | else byte = pgm_read_byte(&bitmap[j * byteWidth + i / 8]);
|
---|
807 | // Nearly identical to drawBitmap(), only the bit order
|
---|
808 | // is reversed here (left-to-right = LSB to MSB):
|
---|
809 | if (byte & 0x01) lcd_writePixel(lcd, x + i, y, color);
|
---|
810 | }
|
---|
811 | }
|
---|
812 | lcd_endWrite(lcd);
|
---|
813 | }
|
---|
814 |
|
---|
815 |
|
---|
816 | /**************************************************************************/
|
---|
817 | /*!
|
---|
818 | @brief Draw a PROGMEM-resident 8-bit image (grayscale) at the specified (x,y) pos.
|
---|
819 | Specifically for 8-bit display devices such as IS31FL3731; no color reduction/expansion is performed.
|
---|
820 | @param x Top left corner x coordinate
|
---|
821 | @param y Top left corner y coordinate
|
---|
822 | @param bitmap byte array with grayscale bitmap
|
---|
823 | @param w Width of bitmap in pixels
|
---|
824 | @param h Hieght of bitmap in pixels
|
---|
825 | */
|
---|
826 | /**************************************************************************/
|
---|
827 | void lcd_drawGrayscaleBitmap1(LCD_Handler_t *lcd, int16_t x, int16_t y,
|
---|
828 | const uint8_t bitmap[], int16_t w, int16_t h)
|
---|
829 | {
|
---|
830 | lcd_startWrite(lcd);
|
---|
831 | for (int16_t j = 0; j < h; j++, y++) {
|
---|
832 | for (int16_t i = 0; i < w; i++) {
|
---|
833 | lcd_writePixel(lcd, x + i, y, (uint8_t)pgm_read_byte(&bitmap[j * w + i]));
|
---|
834 | }
|
---|
835 | }
|
---|
836 | lcd_endWrite(lcd);
|
---|
837 | }
|
---|
838 |
|
---|
839 | /**************************************************************************/
|
---|
840 | /*!
|
---|
841 | @brief Draw a RAM-resident 8-bit image (grayscale) at the specified (x,y) pos.
|
---|
842 | Specifically for 8-bit display devices such as IS31FL3731; no color reduction/expansion is performed.
|
---|
843 | @param x Top left corner x coordinate
|
---|
844 | @param y Top left corner y coordinate
|
---|
845 | @param bitmap byte array with grayscale bitmap
|
---|
846 | @param w Width of bitmap in pixels
|
---|
847 | @param h Hieght of bitmap in pixels
|
---|
848 | */
|
---|
849 | /**************************************************************************/
|
---|
850 | void lcd_drawGrayscaleBitmap2(LCD_Handler_t *lcd, int16_t x, int16_t y,
|
---|
851 | uint8_t *bitmap, int16_t w, int16_t h)
|
---|
852 | {
|
---|
853 | lcd_startWrite(lcd);
|
---|
854 | for (int16_t j = 0; j < h; j++, y++) {
|
---|
855 | for (int16_t i = 0; i < w; i++) {
|
---|
856 | lcd_writePixel(lcd, x + i, y, bitmap[j * w + i]);
|
---|
857 | }
|
---|
858 | }
|
---|
859 | lcd_endWrite(lcd);
|
---|
860 | }
|
---|
861 |
|
---|
862 |
|
---|
863 | /**************************************************************************/
|
---|
864 | /*!
|
---|
865 | @brief Draw a PROGMEM-resident 8-bit image (grayscale) with a 1-bit mask
|
---|
866 | (set bits = opaque, unset bits = clear) at the specified (x,y) position.
|
---|
867 | BOTH buffers (grayscale and mask) must be PROGMEM-resident.
|
---|
868 | Specifically for 8-bit display devices such as IS31FL3731; no color reduction/expansion is performed.
|
---|
869 | @param x Top left corner x coordinate
|
---|
870 | @param y Top left corner y coordinate
|
---|
871 | @param bitmap byte array with grayscale bitmap
|
---|
872 | @param mask byte array with mask bitmap
|
---|
873 | @param w Width of bitmap in pixels
|
---|
874 | @param h Height of bitmap in pixels
|
---|
875 | */
|
---|
876 | /**************************************************************************/
|
---|
877 | void lcd_drawGrayscaleBitmap3(LCD_Handler_t *lcd, int16_t x, int16_t y,
|
---|
878 | const uint8_t bitmap[], const uint8_t mask[],
|
---|
879 | int16_t w, int16_t h)
|
---|
880 | {
|
---|
881 | int16_t bw = (w + 7) / 8; // Bitmask scanline pad = whole byte
|
---|
882 | uint8_t byte = 0;
|
---|
883 | lcd_startWrite(lcd);
|
---|
884 | for (int16_t j = 0; j < h; j++, y++) {
|
---|
885 | for (int16_t i = 0; i < w; i++) {
|
---|
886 | if (i & 7) byte <<= 1;
|
---|
887 | else byte = pgm_read_byte(&mask[j * bw + i / 8]);
|
---|
888 | if (byte & 0x80) {
|
---|
889 | lcd_writePixel(lcd, x + i, y, (uint8_t)pgm_read_byte(&bitmap[j * w + i]));
|
---|
890 | }
|
---|
891 | }
|
---|
892 | }
|
---|
893 | lcd_endWrite(lcd);
|
---|
894 | }
|
---|
895 |
|
---|
896 | /**************************************************************************/
|
---|
897 | /*!
|
---|
898 | @brief Draw a RAM-resident 8-bit image (grayscale) with a 1-bit mask
|
---|
899 | (set bits = opaque, unset bits = clear) at the specified (x,y) position.
|
---|
900 | BOTH buffers (grayscale and mask) must be RAM-residentt, no mix-and-match
|
---|
901 | Specifically for 8-bit display devices such as IS31FL3731; no color reduction/expansion is performed.
|
---|
902 | @param x Top left corner x coordinate
|
---|
903 | @param y Top left corner y coordinate
|
---|
904 | @param bitmap byte array with grayscale bitmap
|
---|
905 | @param mask byte array with mask bitmap
|
---|
906 | @param w Width of bitmap in pixels
|
---|
907 | @param h Height of bitmap in pixels
|
---|
908 | */
|
---|
909 | /**************************************************************************/
|
---|
910 | void lcd_drawGrayscaleBitmap4(LCD_Handler_t *lcd, int16_t x, int16_t y,
|
---|
911 | uint8_t *bitmap, uint8_t *mask, int16_t w, int16_t h)
|
---|
912 | {
|
---|
913 | int16_t bw = (w + 7) / 8; // Bitmask scanline pad = whole byte
|
---|
914 | uint8_t byte = 0;
|
---|
915 | lcd_startWrite(lcd);
|
---|
916 | for (int16_t j = 0; j < h; j++, y++) {
|
---|
917 | for (int16_t i = 0; i < w; i++) {
|
---|
918 | if (i & 7) byte <<= 1;
|
---|
919 | else byte = mask[j * bw + i / 8];
|
---|
920 | if (byte & 0x80) {
|
---|
921 | lcd_writePixel(lcd, x + i, y, bitmap[j * w + i]);
|
---|
922 | }
|
---|
923 | }
|
---|
924 | }
|
---|
925 | lcd_endWrite(lcd);
|
---|
926 | }
|
---|
927 |
|
---|
928 |
|
---|
929 | /**************************************************************************/
|
---|
930 | /*!
|
---|
931 | @brief Draw a PROGMEM-resident 16-bit image (RGB 5/6/5) at the specified (x,y) position.
|
---|
932 | For 16-bit display devices; no color reduction performed.
|
---|
933 | @param x Top left corner x coordinate
|
---|
934 | @param y Top left corner y coordinate
|
---|
935 | @param bitmap byte array with 16-bit color bitmap
|
---|
936 | @param w Width of bitmap in pixels
|
---|
937 | @param h Height of bitmap in pixels
|
---|
938 | */
|
---|
939 | /**************************************************************************/
|
---|
940 | void lcd_drawRGBBitmap1(LCD_Handler_t *lcd, int16_t x, int16_t y,
|
---|
941 | const uint16_t bitmap[], int16_t w, int16_t h)
|
---|
942 | {
|
---|
943 | lcd_startWrite(lcd);
|
---|
944 | for (int16_t j = 0; j < h; j++, y++) {
|
---|
945 | for (int16_t i = 0; i < w; i++) {
|
---|
946 | lcd_writePixel(lcd, x + i, y, pgm_read_word(&bitmap[j * w + i]));
|
---|
947 | }
|
---|
948 | }
|
---|
949 | lcd_endWrite(lcd);
|
---|
950 | }
|
---|
951 |
|
---|
952 | /**************************************************************************/
|
---|
953 | /*!
|
---|
954 | @brief Draw a RAM-resident 16-bit image (RGB 5/6/5) at the specified (x,y) position.
|
---|
955 | For 16-bit display devices; no color reduction performed.
|
---|
956 | @param x Top left corner x coordinate
|
---|
957 | @param y Top left corner y coordinate
|
---|
958 | @param bitmap byte array with 16-bit color bitmap
|
---|
959 | @param w Width of bitmap in pixels
|
---|
960 | @param h Height of bitmap in pixels
|
---|
961 | */
|
---|
962 | /**************************************************************************/
|
---|
963 | void lcd_drawRGBBitmap2(LCD_Handler_t *lcd, int16_t x, int16_t y,
|
---|
964 | uint16_t *bitmap, int16_t w, int16_t h)
|
---|
965 | {
|
---|
966 | lcd_startWrite(lcd);
|
---|
967 | for (int16_t j = 0; j < h; j++, y++) {
|
---|
968 | for (int16_t i = 0; i < w; i++) {
|
---|
969 | lcd_writePixel(lcd, x + i, y, bitmap[j * w + i]);
|
---|
970 | }
|
---|
971 | }
|
---|
972 | lcd_endWrite(lcd);
|
---|
973 | }
|
---|
974 |
|
---|
975 |
|
---|
976 | /**************************************************************************/
|
---|
977 | /*!
|
---|
978 | @brief Draw a PROGMEM-resident 16-bit image (RGB 5/6/5) with a 1-bit mask (set bits = opaque, unset bits = clear) at the specified (x,y) position. BOTH buffers (color and mask) must be PROGMEM-resident. For 16-bit display devices; no color reduction performed.
|
---|
979 | @param x Top left corner x coordinate
|
---|
980 | @param y Top left corner y coordinate
|
---|
981 | @param bitmap byte array with 16-bit color bitmap
|
---|
982 | @param mask byte array with monochrome mask bitmap
|
---|
983 | @param w Width of bitmap in pixels
|
---|
984 | @param h Height of bitmap in pixels
|
---|
985 | */
|
---|
986 | /**************************************************************************/
|
---|
987 | void lcd_drawRGBBitmap3(LCD_Handler_t *lcd, int16_t x, int16_t y,
|
---|
988 | const uint16_t bitmap[], const uint8_t mask[],
|
---|
989 | int16_t w, int16_t h)
|
---|
990 | {
|
---|
991 | int16_t bw = (w + 7) / 8; // Bitmask scanline pad = whole byte
|
---|
992 | uint8_t byte = 0;
|
---|
993 | lcd_startWrite(lcd);
|
---|
994 | for (int16_t j = 0; j < h; j++, y++) {
|
---|
995 | for (int16_t i = 0; i < w; i++) {
|
---|
996 | if (i & 7) byte <<= 1;
|
---|
997 | else byte = pgm_read_byte(&mask[j * bw + i / 8]);
|
---|
998 | if (byte & 0x80) {
|
---|
999 | lcd_writePixel(lcd, x + i, y, pgm_read_word(&bitmap[j * w + i]));
|
---|
1000 | }
|
---|
1001 | }
|
---|
1002 | }
|
---|
1003 | lcd_endWrite(lcd);
|
---|
1004 | }
|
---|
1005 |
|
---|
1006 | /**************************************************************************/
|
---|
1007 | /*!
|
---|
1008 | @brief Draw a RAM-resident 16-bit image (RGB 5/6/5) with a 1-bit mask (set bits = opaque, unset bits = clear) at the specified (x,y) position. BOTH buffers (color and mask) must be RAM-resident. For 16-bit display devices; no color reduction performed.
|
---|
1009 | @param x Top left corner x coordinate
|
---|
1010 | @param y Top left corner y coordinate
|
---|
1011 | @param bitmap byte array with 16-bit color bitmap
|
---|
1012 | @param mask byte array with monochrome mask bitmap
|
---|
1013 | @param w Width of bitmap in pixels
|
---|
1014 | @param h Height of bitmap in pixels
|
---|
1015 | */
|
---|
1016 | /**************************************************************************/
|
---|
1017 | void lcd_drawRGBBitmap4(LCD_Handler_t *lcd, int16_t x, int16_t y,
|
---|
1018 | uint16_t *bitmap, uint8_t *mask, int16_t w, int16_t h)
|
---|
1019 | {
|
---|
1020 | int16_t bw = (w + 7) / 8; // Bitmask scanline pad = whole byte
|
---|
1021 | uint8_t byte = 0;
|
---|
1022 | lcd_startWrite(lcd);
|
---|
1023 | for (int16_t j = 0; j < h; j++, y++) {
|
---|
1024 | for (int16_t i = 0; i < w; i++) {
|
---|
1025 | if (i & 7) byte <<= 1;
|
---|
1026 | else byte = mask[j * bw + i / 8];
|
---|
1027 | if (byte & 0x80) {
|
---|
1028 | lcd_writePixel(lcd, x + i, y, bitmap[j * w + i]);
|
---|
1029 | }
|
---|
1030 | }
|
---|
1031 | }
|
---|
1032 | lcd_endWrite(lcd);
|
---|
1033 | }
|
---|
1034 |
|
---|
1035 | // TEXT- AND CHARACTER-HANDLING FUNCTIONS ----------------------------------
|
---|
1036 |
|
---|
1037 | /**************************************************************************/
|
---|
1038 | /*!
|
---|
1039 | @brief Draw a RAM-resident 1-bit image at the specified (x,y) position, using the specified foreground (for set bits) and background (unset bits) colors.
|
---|
1040 | @param x Top left corner x coordinate
|
---|
1041 | @param y Top left corner y coordinate
|
---|
1042 | @param bitmap byte array with monochrome bitmap
|
---|
1043 | @param w Width of bitmap in pixels
|
---|
1044 | @param h Hieght of bitmap in pixels
|
---|
1045 | @param color 16-bit 5-6-5 Color to draw pixels with
|
---|
1046 | @param bg 16-bit 5-6-5 Color to draw background with
|
---|
1047 | */
|
---|
1048 | /**************************************************************************/
|
---|
1049 | void lcd_drawFont_(LCD_Handler_t *lcd, int16_t x, int16_t y,
|
---|
1050 | uint8_t *bitmap, int16_t w, int16_t h, uint16_t color, uint16_t bg)
|
---|
1051 | {
|
---|
1052 | int16_t b = 0;
|
---|
1053 | uint8_t byte = 0;
|
---|
1054 |
|
---|
1055 | lcd_startWrite(lcd);
|
---|
1056 | for (int16_t j = 0; j < h; j++, y++) {
|
---|
1057 | for (int16_t i = 0; i < w; i++, b++) {
|
---|
1058 | if (b & 7) byte <<= 1;
|
---|
1059 | else byte = *bitmap++;
|
---|
1060 | lcd_writePixel(lcd, x + i, y, (byte & 0x80) ? color : bg);
|
---|
1061 | }
|
---|
1062 | }
|
---|
1063 | lcd_endWrite(lcd);
|
---|
1064 | }
|
---|
1065 |
|
---|
1066 | // Draw a character
|
---|
1067 | /**************************************************************************/
|
---|
1068 | /*!
|
---|
1069 | @brief Draw a single character
|
---|
1070 | @param x Bottom left corner x coordinate
|
---|
1071 | @param y Bottom left corner y coordinate
|
---|
1072 | @param c The 8-bit font-indexed character (likely ascii)
|
---|
1073 | @param color 16-bit 5-6-5 Color to draw chraracter with
|
---|
1074 | @param bg 16-bit 5-6-5 Color to fill background with (if same as color, no background)
|
---|
1075 | @param size Font magnification level, 1 is 'original' size
|
---|
1076 | */
|
---|
1077 | /**************************************************************************/
|
---|
1078 | void lcd_drawChar(LCD_Handler_t *lcd, int16_t x, int16_t y, const char *utf8,
|
---|
1079 | uint16_t color, uint16_t bg, uint8_t size)
|
---|
1080 | {
|
---|
1081 | if (!lcd->gfxFont) { // 'Classic' built-in font
|
---|
1082 | uint8_t bitmap_data[FONT_WIDTH * FONT_HEIGHT / 8];
|
---|
1083 | uint32_t use_chars, for_3B_hankaku_code;
|
---|
1084 | const uint8_t *code = (const uint8_t *)utf8;
|
---|
1085 |
|
---|
1086 | if ((x >= lcd->_width) || // Clip right
|
---|
1087 | (y >= lcd->_height) || // Clip bottom
|
---|
1088 | ((x + FONT_WIDTH * size - 1) < 0) || // Clip left
|
---|
1089 | ((y + FONT_HEIGHT * size - 1) < 0)) // Clip top
|
---|
1090 | return;
|
---|
1091 |
|
---|
1092 | memset(bitmap_data, 0x0, FONT_WIDTH * FONT_HEIGHT / 8);
|
---|
1093 |
|
---|
1094 | get_bitmap_font(code, bitmap_data, &use_chars);
|
---|
1095 | if (use_chars == 0)
|
---|
1096 | return;
|
---|
1097 |
|
---|
1098 | //3バイトコード半角文字用
|
---|
1099 | if (use_chars == 3) {
|
---|
1100 | for_3B_hankaku_code = 0;
|
---|
1101 | for_3B_hankaku_code = ((code[0] << 16) |
|
---|
1102 | (code[1] << 8) |
|
---|
1103 | (code[2]));
|
---|
1104 | }
|
---|
1105 |
|
---|
1106 | lcd_startWrite(lcd);
|
---|
1107 | //1バイトコード半角文字
|
---|
1108 | if (use_chars == 1) {
|
---|
1109 | lcd_drawFont_(lcd, x, y, bitmap_data, FONT_HALF_WIDTH, FONT_HEIGHT, color, bg);
|
---|
1110 | }
|
---|
1111 | //3バイトコード半角文字
|
---|
1112 | else if ((use_chars == 3) &&
|
---|
1113 | (((0xEFBDA1 <= for_3B_hankaku_code) && (for_3B_hankaku_code <= 0xEFBDBF)) ||
|
---|
1114 | ((0xEFBE80 <= for_3B_hankaku_code) && (for_3B_hankaku_code <= 0xEFBE9F)))) {
|
---|
1115 | //3バイトコード半角文字
|
---|
1116 | lcd_drawFont_(lcd, x, y, bitmap_data, FONT_HALF_WIDTH, FONT_HEIGHT, color, bg);
|
---|
1117 | }
|
---|
1118 | //全角文字
|
---|
1119 | else {
|
---|
1120 | lcd_drawFont_(lcd, x, y, bitmap_data, FONT_WIDTH, FONT_HEIGHT, color, bg);
|
---|
1121 | }
|
---|
1122 | if (bg != color) { // If opaque, draw vertical line for last column
|
---|
1123 | if (size == 1) lcd_writeFastVLine(lcd, x + FONT_WIDTH, y, FONT_HEIGHT, bg);
|
---|
1124 | else lcd_writeFillRect(lcd, x + FONT_WIDTH * size, y, size, FONT_HEIGHT*size, bg);
|
---|
1125 | }
|
---|
1126 | lcd_endWrite(lcd);
|
---|
1127 |
|
---|
1128 | }
|
---|
1129 | else { // Custom font
|
---|
1130 | unsigned char c = *utf8;
|
---|
1131 |
|
---|
1132 | // Character is assumed previously filtered by write() to eliminate
|
---|
1133 | // newlines, returns, non-printable characters, etc. Calling
|
---|
1134 | // drawChar() directly with 'bad' characters of font may cause mayhem!
|
---|
1135 |
|
---|
1136 | c -= (uint8_t)pgm_read_byte(&lcd->gfxFont->first);
|
---|
1137 | GFXglyph *glyph = &(((GFXglyph *)pgm_read_pointer(&lcd->gfxFont->glyph))[c]);
|
---|
1138 | uint8_t *bitmap = (uint8_t *)pgm_read_pointer(&lcd->gfxFont->bitmap);
|
---|
1139 |
|
---|
1140 | uint16_t bo = pgm_read_word(&glyph->bitmapOffset);
|
---|
1141 | uint8_t w = pgm_read_byte(&glyph->width),
|
---|
1142 | h = pgm_read_byte(&glyph->height);
|
---|
1143 | int8_t xo = pgm_read_byte(&glyph->xOffset),
|
---|
1144 | yo = pgm_read_byte(&glyph->yOffset);
|
---|
1145 | uint8_t xx, yy, bits = 0, bit = 0;
|
---|
1146 | int16_t xo16 = 0, yo16 = 0;
|
---|
1147 |
|
---|
1148 | if (size > 1) {
|
---|
1149 | xo16 = xo;
|
---|
1150 | yo16 = yo;
|
---|
1151 | }
|
---|
1152 |
|
---|
1153 | // Todo: Add character clipping here
|
---|
1154 |
|
---|
1155 | // NOTE: THERE IS NO 'BACKGROUND' COLOR OPTION ON CUSTOM FONTS.
|
---|
1156 | // THIS IS ON PURPOSE AND BY DESIGN. The background color feature
|
---|
1157 | // has typically been used with the 'classic' font to overwrite old
|
---|
1158 | // screen contents with new data. This ONLY works because the
|
---|
1159 | // characters are a uniform size; it's not a sensible thing to do with
|
---|
1160 | // proportionally-spaced fonts with glyphs of varying sizes (and that
|
---|
1161 | // may overlap). To replace previously-drawn text when using a custom
|
---|
1162 | // font, use the getTextBounds() function to determine the smallest
|
---|
1163 | // rectangle encompassing a string, erase the area with fillRect(),
|
---|
1164 | // then draw new text. This WILL infortunately 'blink' the text, but
|
---|
1165 | // is unavoidable. Drawing 'background' pixels will NOT fix this,
|
---|
1166 | // only creates a new set of problems. Have an idea to work around
|
---|
1167 | // this (a canvas object type for MCUs that can afford the RAM and
|
---|
1168 | // displays supporting setAddrWindow() and pushColors()), but haven't
|
---|
1169 | // implemented this yet.
|
---|
1170 |
|
---|
1171 | lcd_startWrite(lcd);
|
---|
1172 | for (yy = 0; yy < h; yy++) {
|
---|
1173 | for (xx = 0; xx < w; xx++) {
|
---|
1174 | if (!(bit++ & 7)) {
|
---|
1175 | bits = pgm_read_byte(&bitmap[bo++]);
|
---|
1176 | }
|
---|
1177 | if (bits & 0x80) {
|
---|
1178 | if (size == 1) {
|
---|
1179 | lcd_writePixel(lcd, x + xo + xx, y + yo + yy, color);
|
---|
1180 | }
|
---|
1181 | else {
|
---|
1182 | lcd_writeFillRect(lcd, x + (xo16 + xx)*size, y + (yo16 + yy)*size,
|
---|
1183 | size, size, color);
|
---|
1184 | }
|
---|
1185 | }
|
---|
1186 | bits <<= 1;
|
---|
1187 | }
|
---|
1188 | }
|
---|
1189 | lcd_endWrite(lcd);
|
---|
1190 |
|
---|
1191 | } // End classic vs custom font
|
---|
1192 | }
|
---|
1193 | /**************************************************************************/
|
---|
1194 | /*!
|
---|
1195 | @brief Print one byte/character of data, used to support print()
|
---|
1196 | @param c The 8-bit ascii character to write
|
---|
1197 | */
|
---|
1198 | /**************************************************************************/
|
---|
1199 | size_t lcd_write(LCD_Handler_t *lcd, uint8_t c)
|
---|
1200 | {
|
---|
1201 | if (!lcd->gfxFont) { // 'Classic' built-in font
|
---|
1202 |
|
---|
1203 | if (c == '\n') { // Newline?
|
---|
1204 | lcd->cursor_x = 0; // Reset x to zero,
|
---|
1205 | lcd->cursor_y += lcd->textsize * 8; // advance y one line
|
---|
1206 | }
|
---|
1207 | else if (c != '\r') { // Ignore carriage returns
|
---|
1208 | if (lcd->wrap && ((lcd->cursor_x + lcd->textsize * 6) > lcd->_width)) { // Off right?
|
---|
1209 | lcd->cursor_x = 0; // Reset x to zero,
|
---|
1210 | lcd->cursor_y += lcd->textsize * 8; // advance y one line
|
---|
1211 | }
|
---|
1212 | lcd_drawChar(lcd, lcd->cursor_x, lcd->cursor_y, (char *)&c, lcd->textcolor, lcd->textbgcolor, lcd->textsize);
|
---|
1213 | lcd->cursor_x += lcd->textsize * 6; // Advance x one char
|
---|
1214 | }
|
---|
1215 |
|
---|
1216 | }
|
---|
1217 | else { // Custom font
|
---|
1218 |
|
---|
1219 | if (c == '\n') {
|
---|
1220 | lcd->cursor_x = 0;
|
---|
1221 | lcd->cursor_y += (int16_t)lcd->textsize *
|
---|
1222 | (uint8_t)pgm_read_byte(&lcd->gfxFont->yAdvance);
|
---|
1223 | }
|
---|
1224 | else if (c != '\r') {
|
---|
1225 | uint8_t first = pgm_read_byte(&lcd->gfxFont->first);
|
---|
1226 | if ((c >= first) && (c <= (uint8_t)pgm_read_byte(&lcd->gfxFont->last))) {
|
---|
1227 | GFXglyph *glyph = &(((GFXglyph *)pgm_read_pointer(
|
---|
1228 | &lcd->gfxFont->glyph))[c - first]);
|
---|
1229 | uint8_t w = pgm_read_byte(&glyph->width),
|
---|
1230 | h = pgm_read_byte(&glyph->height);
|
---|
1231 | if ((w > 0) && (h > 0)) { // Is there an associated bitmap?
|
---|
1232 | int16_t xo = (int8_t)pgm_read_byte(&glyph->xOffset); // sic
|
---|
1233 | if (lcd->wrap && ((lcd->cursor_x + lcd->textsize * (xo + w)) > lcd->_width)) {
|
---|
1234 | lcd->cursor_x = 0;
|
---|
1235 | lcd->cursor_y += (int16_t)lcd->textsize *
|
---|
1236 | (uint8_t)pgm_read_byte(&lcd->gfxFont->yAdvance);
|
---|
1237 | }
|
---|
1238 | lcd_drawChar(lcd, lcd->cursor_x, lcd->cursor_y, (char *)&c, lcd->textcolor, lcd->textbgcolor, lcd->textsize);
|
---|
1239 | }
|
---|
1240 | lcd->cursor_x += (uint8_t)pgm_read_byte(&glyph->xAdvance) * (int16_t)lcd->textsize;
|
---|
1241 | }
|
---|
1242 | }
|
---|
1243 |
|
---|
1244 | }
|
---|
1245 | return 1;
|
---|
1246 | }
|
---|
1247 |
|
---|
1248 | void lcd_drawString_(LCD_Handler_t *lcd, int16_t x, int16_t y,
|
---|
1249 | const char *string, uint16_t color, uint16_t bg)
|
---|
1250 | {
|
---|
1251 | uint32_t current_top, use_chars, for_3B_hankaku_code;
|
---|
1252 | uint8_t bitmap_data[FONT_WIDTH * FONT_HEIGHT / 8], ctrl_code;
|
---|
1253 | int local_x, local_y, len = strlen(string);
|
---|
1254 | const uint8_t *code = (const uint8_t *)string;
|
---|
1255 |
|
---|
1256 | local_x = x;
|
---|
1257 | local_y = y;
|
---|
1258 |
|
---|
1259 | current_top = 0;
|
---|
1260 | while (current_top < len) {
|
---|
1261 | memset(bitmap_data, 0x0, FONT_WIDTH * FONT_HEIGHT / 8);
|
---|
1262 | ctrl_code = code[current_top];
|
---|
1263 | get_bitmap_font(&code[current_top], bitmap_data, &use_chars);
|
---|
1264 | if (use_chars == 0)
|
---|
1265 | return;
|
---|
1266 |
|
---|
1267 | //3バイトコード半角文字用
|
---|
1268 | if (use_chars == 3) {
|
---|
1269 | for_3B_hankaku_code = 0;
|
---|
1270 | for_3B_hankaku_code = ((code[current_top] << 16) |
|
---|
1271 | (code[current_top + 1] << 8) |
|
---|
1272 | (code[current_top + 2]));
|
---|
1273 | }
|
---|
1274 |
|
---|
1275 | current_top += use_chars;
|
---|
1276 |
|
---|
1277 | //1バイトコード半角文字
|
---|
1278 | if (use_chars == 1) {
|
---|
1279 | if (ctrl_code == 0x0D) { // CR
|
---|
1280 | local_x = X_LINE_TO_PIX(this, 0);
|
---|
1281 | continue;
|
---|
1282 | }
|
---|
1283 | if (ctrl_code == 0x0A) { // LF
|
---|
1284 | local_y = local_y + FONT_HEIGHT;
|
---|
1285 | continue;
|
---|
1286 | }
|
---|
1287 |
|
---|
1288 | if (local_x + FONT_HALF_WIDTH > lcd->_width) {
|
---|
1289 | local_x = X_LINE_HALF_TO_PIX(this, 0);
|
---|
1290 | local_y = local_y + FONT_HEIGHT;
|
---|
1291 | }
|
---|
1292 | lcd_drawFont_(lcd, local_x, local_y, bitmap_data, FONT_HALF_WIDTH, FONT_HEIGHT, color, bg);
|
---|
1293 | local_x += FONT_HALF_WIDTH;
|
---|
1294 | continue;
|
---|
1295 | }
|
---|
1296 |
|
---|
1297 | //3バイトコード半角文字
|
---|
1298 | if (use_chars == 3) {
|
---|
1299 | if (((0xEFBDA1 <= for_3B_hankaku_code) && (for_3B_hankaku_code <= 0xEFBDBF)) ||
|
---|
1300 | ((0xEFBE80 <= for_3B_hankaku_code) && (for_3B_hankaku_code <= 0xEFBE9F))) {
|
---|
1301 | //3バイトコード半角文字
|
---|
1302 | if (local_x + FONT_HALF_WIDTH > lcd->_width) {
|
---|
1303 | local_x = X_LINE_HALF_TO_PIX(this, 0);
|
---|
1304 | local_y = local_y + FONT_HEIGHT;
|
---|
1305 | }
|
---|
1306 | lcd_drawFont_(lcd, local_x, local_y, bitmap_data, FONT_HALF_WIDTH, FONT_HEIGHT, color, bg);
|
---|
1307 | local_x += FONT_HALF_WIDTH;
|
---|
1308 | continue;
|
---|
1309 | }
|
---|
1310 | }
|
---|
1311 |
|
---|
1312 | //全角文字
|
---|
1313 | if (local_x + FONT_WIDTH > lcd->_width) {
|
---|
1314 | local_x = X_LINE_TO_PIX(this, 0);
|
---|
1315 | local_y = local_y + FONT_HEIGHT;
|
---|
1316 | }
|
---|
1317 | lcd_drawFont_(lcd, local_x, local_y, bitmap_data, FONT_WIDTH, FONT_HEIGHT, color, bg);
|
---|
1318 | local_x += FONT_WIDTH;
|
---|
1319 | }
|
---|
1320 | }
|
---|
1321 |
|
---|
1322 | /**************************************************************************/
|
---|
1323 | /*!
|
---|
1324 | @brief Set text cursor location
|
---|
1325 | @param x X coordinate in pixels
|
---|
1326 | @param y Y coordinate in pixels
|
---|
1327 | */
|
---|
1328 | /**************************************************************************/
|
---|
1329 | void lcd_setCursor(LCD_Handler_t *lcd, int16_t x, int16_t y)
|
---|
1330 | {
|
---|
1331 | lcd->cursor_x = x;
|
---|
1332 | lcd->cursor_y = y;
|
---|
1333 | }
|
---|
1334 |
|
---|
1335 | /**************************************************************************/
|
---|
1336 | /*!
|
---|
1337 | @brief Get text cursor X location
|
---|
1338 | @returns X coordinate in pixels
|
---|
1339 | */
|
---|
1340 | /**************************************************************************/
|
---|
1341 | int16_t lcd_getCursorX(LCD_Handler_t *lcd)
|
---|
1342 | {
|
---|
1343 | return lcd->cursor_x;
|
---|
1344 | }
|
---|
1345 |
|
---|
1346 | /**************************************************************************/
|
---|
1347 | /*!
|
---|
1348 | @brief Get text cursor Y location
|
---|
1349 | @returns Y coordinate in pixels
|
---|
1350 | */
|
---|
1351 | /**************************************************************************/
|
---|
1352 | int16_t lcd_getCursorY(LCD_Handler_t *lcd)
|
---|
1353 | {
|
---|
1354 | return lcd->cursor_y;
|
---|
1355 | }
|
---|
1356 |
|
---|
1357 | /**************************************************************************/
|
---|
1358 | /*!
|
---|
1359 | @brief Set text 'magnification' size. Each increase in s makes 1 pixel that much bigger.
|
---|
1360 | @param s Desired text size. 1 is default 6x8, 2 is 12x16, 3 is 18x24, etc
|
---|
1361 | */
|
---|
1362 | /**************************************************************************/
|
---|
1363 | void lcd_setTextSize(LCD_Handler_t *lcd, uint8_t s)
|
---|
1364 | {
|
---|
1365 | lcd->textsize = (s > 0) ? s : 1;
|
---|
1366 | }
|
---|
1367 |
|
---|
1368 | /**************************************************************************/
|
---|
1369 | /*!
|
---|
1370 | @brief Set text font color with transparant background
|
---|
1371 | @param c 16-bit 5-6-5 Color to draw text with
|
---|
1372 | */
|
---|
1373 | /**************************************************************************/
|
---|
1374 | void lcd_setTextColor(LCD_Handler_t *lcd, uint16_t c)
|
---|
1375 | {
|
---|
1376 | // For 'transparent' background, we'll set the bg
|
---|
1377 | // to the same as fg instead of using a flag
|
---|
1378 | lcd->textcolor = lcd->textbgcolor = c;
|
---|
1379 | }
|
---|
1380 |
|
---|
1381 | /**************************************************************************/
|
---|
1382 | /*!
|
---|
1383 | @brief Set text font color with custom background color
|
---|
1384 | @param c 16-bit 5-6-5 Color to draw text with
|
---|
1385 | @param b 16-bit 5-6-5 Color to draw background/fill with
|
---|
1386 | */
|
---|
1387 | /**************************************************************************/
|
---|
1388 | void lcd_setTextColor2(LCD_Handler_t *lcd, uint16_t c, uint16_t b)
|
---|
1389 | {
|
---|
1390 | lcd->textcolor = c;
|
---|
1391 | lcd->textbgcolor = b;
|
---|
1392 | }
|
---|
1393 |
|
---|
1394 | /**************************************************************************/
|
---|
1395 | /*!
|
---|
1396 | @brief Whether text that is too long should 'wrap' around to the next line.
|
---|
1397 | @param w Set true for wrapping, false for clipping
|
---|
1398 | */
|
---|
1399 | /**************************************************************************/
|
---|
1400 | void lcd_setTextWrap(LCD_Handler_t *lcd, bool w)
|
---|
1401 | {
|
---|
1402 | lcd->wrap = w;
|
---|
1403 | }
|
---|
1404 |
|
---|
1405 | /**************************************************************************/
|
---|
1406 | /*!
|
---|
1407 | @brief Get rotation setting for display
|
---|
1408 | @returns 0 thru 3 corresponding to 4 cardinal rotations
|
---|
1409 | */
|
---|
1410 | /**************************************************************************/
|
---|
1411 | uint8_t lcd_getRotation(LCD_Handler_t *lcd)
|
---|
1412 | {
|
---|
1413 | return lcd->rotation;
|
---|
1414 | }
|
---|
1415 |
|
---|
1416 | /**************************************************************************/
|
---|
1417 | /*!
|
---|
1418 | @brief Set rotation setting for display
|
---|
1419 | @param x 0 thru 3 corresponding to 4 cardinal rotations
|
---|
1420 | */
|
---|
1421 | /**************************************************************************/
|
---|
1422 | void lcd_setRotation(LCD_Handler_t *lcd, uint8_t x)
|
---|
1423 | {
|
---|
1424 | lcd->rotation = (x & 3);
|
---|
1425 | switch (lcd->rotation) {
|
---|
1426 | case 0:
|
---|
1427 | case 2:
|
---|
1428 | lcd->_width = lcd_init_width;
|
---|
1429 | lcd->_height = lcd_init_height;
|
---|
1430 | break;
|
---|
1431 | case 1:
|
---|
1432 | case 3:
|
---|
1433 | lcd->_width = lcd_init_height;
|
---|
1434 | lcd->_height = lcd_init_width;
|
---|
1435 | break;
|
---|
1436 | }
|
---|
1437 | }
|
---|
1438 |
|
---|
1439 | /**************************************************************************/
|
---|
1440 | /*!
|
---|
1441 | @brief Set the font to display when print()ing, either custom or default
|
---|
1442 | @param f The GFXfont object, if NULL use built in 6x8 font
|
---|
1443 | */
|
---|
1444 | /**************************************************************************/
|
---|
1445 | void lcd_setFont(LCD_Handler_t *lcd, const GFXfont *f)
|
---|
1446 | {
|
---|
1447 | if (f) { // Font struct pointer passed in?
|
---|
1448 | if (!lcd->gfxFont) { // And no current font struct?
|
---|
1449 | // Switching from classic to new font behavior.
|
---|
1450 | // Move cursor pos down 6 pixels so it's on baseline.
|
---|
1451 | lcd->cursor_y += 6;
|
---|
1452 | }
|
---|
1453 | }
|
---|
1454 | else if (lcd->gfxFont) { // NULL passed. Current font struct defined?
|
---|
1455 | // Switching from new to classic font behavior.
|
---|
1456 | // Move cursor pos up 6 pixels so it's at top-left of char.
|
---|
1457 | lcd->cursor_y -= 6;
|
---|
1458 | }
|
---|
1459 | lcd->gfxFont = (GFXfont *)f;
|
---|
1460 | }
|
---|
1461 |
|
---|
1462 |
|
---|
1463 | /**************************************************************************/
|
---|
1464 | /*!
|
---|
1465 | @brief Helper to determine size of a character with current font/size.
|
---|
1466 | Broke this out as it's used by both the PROGMEM- and RAM-resident getTextBounds() functions.
|
---|
1467 | @param c The ascii character in question
|
---|
1468 | @param x Pointer to x location of character
|
---|
1469 | @param y Pointer to y location of character
|
---|
1470 | @param minx Minimum clipping value for X
|
---|
1471 | @param miny Minimum clipping value for Y
|
---|
1472 | @param maxx Maximum clipping value for X
|
---|
1473 | @param maxy Maximum clipping value for Y
|
---|
1474 | */
|
---|
1475 | /**************************************************************************/
|
---|
1476 | void lcd_charBounds(LCD_Handler_t *lcd, char c, int16_t *x, int16_t *y,
|
---|
1477 | int16_t *minx, int16_t *miny, int16_t *maxx, int16_t *maxy)
|
---|
1478 | {
|
---|
1479 |
|
---|
1480 | if (lcd->gfxFont) {
|
---|
1481 |
|
---|
1482 | if (c == '\n') { // Newline?
|
---|
1483 | *x = 0; // Reset x to zero, advance y by one line
|
---|
1484 | *y += lcd->textsize * (uint8_t)pgm_read_byte(&lcd->gfxFont->yAdvance);
|
---|
1485 | }
|
---|
1486 | else if (c != '\r') { // Not a carriage return; is normal char
|
---|
1487 | uint8_t first = pgm_read_byte(&lcd->gfxFont->first),
|
---|
1488 | last = pgm_read_byte(&lcd->gfxFont->last);
|
---|
1489 | if ((c >= first) && (c <= last)) { // Char present in this font?
|
---|
1490 | GFXglyph *glyph = &(((GFXglyph *)pgm_read_pointer(
|
---|
1491 | &lcd->gfxFont->glyph))[c - first]);
|
---|
1492 | uint8_t gw = pgm_read_byte(&glyph->width),
|
---|
1493 | gh = pgm_read_byte(&glyph->height),
|
---|
1494 | xa = pgm_read_byte(&glyph->xAdvance);
|
---|
1495 | int8_t xo = pgm_read_byte(&glyph->xOffset),
|
---|
1496 | yo = pgm_read_byte(&glyph->yOffset);
|
---|
1497 | if (lcd->wrap && ((*x + (((int16_t)xo + gw)*lcd->textsize)) > lcd->_width)) {
|
---|
1498 | *x = 0; // Reset x to zero, advance y by one line
|
---|
1499 | *y += lcd->textsize * (uint8_t)pgm_read_byte(&lcd->gfxFont->yAdvance);
|
---|
1500 | }
|
---|
1501 | int16_t ts = (int16_t)lcd->textsize,
|
---|
1502 | x1 = *x + xo * ts,
|
---|
1503 | y1 = *y + yo * ts,
|
---|
1504 | x2 = x1 + gw * ts - 1,
|
---|
1505 | y2 = y1 + gh * ts - 1;
|
---|
1506 | if (x1 < *minx) *minx = x1;
|
---|
1507 | if (y1 < *miny) *miny = y1;
|
---|
1508 | if (x2 > *maxx) *maxx = x2;
|
---|
1509 | if (y2 > *maxy) *maxy = y2;
|
---|
1510 | *x += xa * ts;
|
---|
1511 | }
|
---|
1512 | }
|
---|
1513 |
|
---|
1514 | }
|
---|
1515 | else { // Default font
|
---|
1516 |
|
---|
1517 | if (c == '\n') { // Newline?
|
---|
1518 | *x = 0; // Reset x to zero,
|
---|
1519 | *y += lcd->textsize * 8; // advance y one line
|
---|
1520 | // min/max x/y unchaged -- that waits for next 'normal' character
|
---|
1521 | }
|
---|
1522 | else if (c != '\r') { // Normal char; ignore carriage returns
|
---|
1523 | if (lcd->wrap && ((*x + lcd->textsize * 6) > lcd->_width)) { // Off right?
|
---|
1524 | *x = 0; // Reset x to zero,
|
---|
1525 | *y += lcd->textsize * 8; // advance y one line
|
---|
1526 | }
|
---|
1527 | int x2 = *x + lcd->textsize * 6 - 1, // Lower-right pixel of char
|
---|
1528 | y2 = *y + lcd->textsize * 8 - 1;
|
---|
1529 | if (x2 > *maxx) *maxx = x2; // Track max x, y
|
---|
1530 | if (y2 > *maxy) *maxy = y2;
|
---|
1531 | if (*x < *minx) *minx = *x; // Track min x, y
|
---|
1532 | if (*y < *miny) *miny = *y;
|
---|
1533 | *x += lcd->textsize * 6; // Advance x one char
|
---|
1534 | }
|
---|
1535 | }
|
---|
1536 | }
|
---|
1537 |
|
---|
1538 | /**************************************************************************/
|
---|
1539 | /*!
|
---|
1540 | @brief Helper to determine size of a string with current font/size. Pass string and a cursor position, returns UL corner and W,H.
|
---|
1541 | @param str The ascii string to measure
|
---|
1542 | @param x The current cursor X
|
---|
1543 | @param y The current cursor Y
|
---|
1544 | @param x1 The boundary X coordinate, set by function
|
---|
1545 | @param y1 The boundary Y coordinate, set by function
|
---|
1546 | @param w The boundary width, set by function
|
---|
1547 | @param h The boundary height, set by function
|
---|
1548 | */
|
---|
1549 | /**************************************************************************/
|
---|
1550 | void lcd_getTextBounds(LCD_Handler_t *lcd, const char *str, int16_t x, int16_t y,
|
---|
1551 | int16_t *x1, int16_t *y1, uint16_t *w, uint16_t *h)
|
---|
1552 | {
|
---|
1553 | uint8_t c; // Current character
|
---|
1554 |
|
---|
1555 | *x1 = x;
|
---|
1556 | *y1 = y;
|
---|
1557 | *w = *h = 0;
|
---|
1558 |
|
---|
1559 | int16_t minx = lcd->_width, miny = lcd->_height, maxx = -1, maxy = -1;
|
---|
1560 |
|
---|
1561 | while ((c = *str++))
|
---|
1562 | lcd_charBounds(lcd, c, &x, &y, &minx, &miny, &maxx, &maxy);
|
---|
1563 |
|
---|
1564 | if (maxx >= minx) {
|
---|
1565 | *x1 = minx;
|
---|
1566 | *w = maxx - minx + 1;
|
---|
1567 | }
|
---|
1568 | if (maxy >= miny) {
|
---|
1569 | *y1 = miny;
|
---|
1570 | *h = maxy - miny + 1;
|
---|
1571 | }
|
---|
1572 | }
|
---|
1573 |
|
---|
1574 | /**************************************************************************/
|
---|
1575 | /*!
|
---|
1576 | @brief Helper to determine size of a string with current font/size. Pass string and a cursor position, returns UL corner and W,H.
|
---|
1577 | @param str The ascii string to measure (as an arduino String() class)
|
---|
1578 | @param x The current cursor X
|
---|
1579 | @param y The current cursor Y
|
---|
1580 | @param x1 The boundary X coordinate, set by function
|
---|
1581 | @param y1 The boundary Y coordinate, set by function
|
---|
1582 | @param w The boundary width, set by function
|
---|
1583 | @param h The boundary height, set by function
|
---|
1584 | */
|
---|
1585 | /**************************************************************************/
|
---|
1586 | void lcd_getTextBounds2(LCD_Handler_t *lcd, const char *str, int16_t x, int16_t y,
|
---|
1587 | int16_t *x1, int16_t *y1, uint16_t *w, uint16_t *h)
|
---|
1588 | {
|
---|
1589 | if (strlen(str) != 0) {
|
---|
1590 | lcd_getTextBounds(lcd, str, x, y, x1, y1, w, h);
|
---|
1591 | }
|
---|
1592 | }
|
---|
1593 |
|
---|
1594 |
|
---|
1595 | /**************************************************************************/
|
---|
1596 | /*!
|
---|
1597 | @brief Helper to determine size of a PROGMEM string with current font/size. Pass string and a cursor position, returns UL corner and W,H.
|
---|
1598 | @param str The flash-memory ascii string to measure
|
---|
1599 | @param x The current cursor X
|
---|
1600 | @param y The current cursor Y
|
---|
1601 | @param x1 The boundary X coordinate, set by function
|
---|
1602 | @param y1 The boundary Y coordinate, set by function
|
---|
1603 | @param w The boundary width, set by function
|
---|
1604 | @param h The boundary height, set by function
|
---|
1605 | */
|
---|
1606 | /**************************************************************************/
|
---|
1607 | void lcd_getTextBounds3(LCD_Handler_t *lcd, const char *str,
|
---|
1608 | int16_t x, int16_t y, int16_t *x1, int16_t *y1, uint16_t *w, uint16_t *h)
|
---|
1609 | {
|
---|
1610 | uint8_t *s = (uint8_t *)str, c;
|
---|
1611 |
|
---|
1612 | *x1 = x;
|
---|
1613 | *y1 = y;
|
---|
1614 | *w = *h = 0;
|
---|
1615 |
|
---|
1616 | int16_t minx = lcd->_width, miny = lcd->_height, maxx = -1, maxy = -1;
|
---|
1617 |
|
---|
1618 | while ((c = pgm_read_byte(s++)))
|
---|
1619 | lcd_charBounds(lcd, c, &x, &y, &minx, &miny, &maxx, &maxy);
|
---|
1620 |
|
---|
1621 | if (maxx >= minx) {
|
---|
1622 | *x1 = minx;
|
---|
1623 | *w = maxx - minx + 1;
|
---|
1624 | }
|
---|
1625 | if (maxy >= miny) {
|
---|
1626 | *y1 = miny;
|
---|
1627 | *h = maxy - miny + 1;
|
---|
1628 | }
|
---|
1629 | }
|
---|
1630 |
|
---|
1631 | /**************************************************************************/
|
---|
1632 | /*!
|
---|
1633 | @brief Get width of the display, accounting for the current rotation
|
---|
1634 | @returns Width in pixels
|
---|
1635 | */
|
---|
1636 | /**************************************************************************/
|
---|
1637 | int16_t lcd_width(LCD_Handler_t *lcd)
|
---|
1638 | {
|
---|
1639 | return lcd->_width;
|
---|
1640 | }
|
---|
1641 |
|
---|
1642 | /**************************************************************************/
|
---|
1643 | /*!
|
---|
1644 | @brief Get height of the display, accounting for the current rotation
|
---|
1645 | @returns Height in pixels
|
---|
1646 | */
|
---|
1647 | /**************************************************************************/
|
---|
1648 | int16_t lcd_height(LCD_Handler_t *lcd)
|
---|
1649 | {
|
---|
1650 | return lcd->_height;
|
---|
1651 | }
|
---|
1652 |
|
---|
1653 | /***************************************************************************/
|
---|