Li Weiyi / Mbed 2 deprecated LED_DZ

work fine

Dependencies:   mbed

Printit.cpp@2:487a727d6181, 2016-06-02 (annotated)

Committer:
lixianyu
Date:
Thu Jun 02 01:07:50 2016 +0000
Revision:
2:487a727d6181
Parent:
0:5ca227682ee7 
drawBMP work.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lixianyu 0:5ca227682ee7 1 /*
lixianyu 0:5ca227682ee7 2 Print.cpp - Base class that provides print() and println()
lixianyu 0:5ca227682ee7 3 Copyright (c) 2008 David A. Mellis. All right reserved.
lixianyu 0:5ca227682ee7 4
lixianyu 0:5ca227682ee7 5 This library is free software; you can redistribute it and/or
lixianyu 0:5ca227682ee7 6 modify it under the terms of the GNU Lesser General Public
lixianyu 0:5ca227682ee7 7 License as published by the Free Software Foundation; either
lixianyu 0:5ca227682ee7 8 version 2.1 of the License, or (at your option) any later version.
lixianyu 0:5ca227682ee7 9
lixianyu 0:5ca227682ee7 10 This library is distributed in the hope that it will be useful,
lixianyu 0:5ca227682ee7 11 but WITHOUT ANY WARRANTY; without even the implied warranty of
lixianyu 0:5ca227682ee7 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
lixianyu 0:5ca227682ee7 13 Lesser General Public License for more details.
lixianyu 0:5ca227682ee7 14
lixianyu 0:5ca227682ee7 15 You should have received a copy of the GNU Lesser General Public
lixianyu 0:5ca227682ee7 16 License along with this library; if not, write to the Free Software
lixianyu 0:5ca227682ee7 17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
lixianyu 0:5ca227682ee7 18
lixianyu 0:5ca227682ee7 19 Modified 23 November 2006 by David A. Mellis
lixianyu 0:5ca227682ee7 20 Modified 03 August 2015 by Chuck Todd
lixianyu 0:5ca227682ee7 21 */
lixianyu 0:5ca227682ee7 22
lixianyu 0:5ca227682ee7 23 //#include <stdlib.h>
lixianyu 0:5ca227682ee7 24 //#include <stdio.h>
lixianyu 0:5ca227682ee7 25 //#include <string.h>
lixianyu 0:5ca227682ee7 26 #include <math.h>
lixianyu 0:5ca227682ee7 27 //#include "Arduino.h"
lixianyu 0:5ca227682ee7 28
lixianyu 0:5ca227682ee7 29 #include "Printit.h"
lixianyu 0:5ca227682ee7 30
lixianyu 0:5ca227682ee7 31 // Public Methods //////////////////////////////////////////////////////////////
lixianyu 0:5ca227682ee7 32
lixianyu 0:5ca227682ee7 33 /* default implementation: may be overridden */
lixianyu 0:5ca227682ee7 34 size_t Print::write(const uint8_t *buffer, size_t size)
lixianyu 0:5ca227682ee7 35 {
lixianyu 0:5ca227682ee7 36 size_t n = 0;
lixianyu 0:5ca227682ee7 37 while (size--) {
lixianyu 0:5ca227682ee7 38 if (write(*buffer++)) n++;
lixianyu 0:5ca227682ee7 39 else break;
lixianyu 0:5ca227682ee7 40 }
lixianyu 0:5ca227682ee7 41 return n;
lixianyu 0:5ca227682ee7 42 }
lixianyu 0:5ca227682ee7 43
lixianyu 0:5ca227682ee7 44 #if 0
lixianyu 0:5ca227682ee7 45 size_t Print::print(const __FlashStringHelper *ifsh)
lixianyu 0:5ca227682ee7 46 {
lixianyu 0:5ca227682ee7 47 PGM_P p = reinterpret_cast<PGM_P>(ifsh);
lixianyu 0:5ca227682ee7 48 size_t n = 0;
lixianyu 0:5ca227682ee7 49 while (1) {
lixianyu 0:5ca227682ee7 50 unsigned char c = pgm_read_byte(p++);
lixianyu 0:5ca227682ee7 51 if (c == 0) break;
lixianyu 0:5ca227682ee7 52 if (write(c)) n++;
lixianyu 0:5ca227682ee7 53 else break;
lixianyu 0:5ca227682ee7 54 }
lixianyu 0:5ca227682ee7 55 return n;
lixianyu 0:5ca227682ee7 56 }
lixianyu 0:5ca227682ee7 57
lixianyu 0:5ca227682ee7 58 size_t Print::print(const String &s)
lixianyu 0:5ca227682ee7 59 {
lixianyu 0:5ca227682ee7 60 return write(s.c_str(), s.length());
lixianyu 0:5ca227682ee7 61 }
lixianyu 0:5ca227682ee7 62 #endif
lixianyu 0:5ca227682ee7 63
lixianyu 0:5ca227682ee7 64 size_t Print::print(char *str)
lixianyu 0:5ca227682ee7 65 {
lixianyu 0:5ca227682ee7 66 return write(str);
lixianyu 0:5ca227682ee7 67 }
lixianyu 0:5ca227682ee7 68
lixianyu 0:5ca227682ee7 69 size_t Print::print(char c)
lixianyu 0:5ca227682ee7 70 {
lixianyu 0:5ca227682ee7 71 return write(c);
lixianyu 0:5ca227682ee7 72 }
lixianyu 0:5ca227682ee7 73
lixianyu 0:5ca227682ee7 74 size_t Print::print(unsigned char b, int base)
lixianyu 0:5ca227682ee7 75 {
lixianyu 0:5ca227682ee7 76 return print((unsigned long) b, base);
lixianyu 0:5ca227682ee7 77 }
lixianyu 0:5ca227682ee7 78
lixianyu 0:5ca227682ee7 79 size_t Print::print(int n, int base)
lixianyu 0:5ca227682ee7 80 {
lixianyu 0:5ca227682ee7 81 return print((long) n, base);
lixianyu 0:5ca227682ee7 82 }
lixianyu 0:5ca227682ee7 83
lixianyu 0:5ca227682ee7 84 size_t Print::print(unsigned int n, int base)
lixianyu 0:5ca227682ee7 85 {
lixianyu 0:5ca227682ee7 86 return print((unsigned long) n, base);
lixianyu 0:5ca227682ee7 87 }
lixianyu 0:5ca227682ee7 88
lixianyu 0:5ca227682ee7 89 size_t Print::print(long n, int base)
lixianyu 0:5ca227682ee7 90 {
lixianyu 0:5ca227682ee7 91 if (base == 0) {
lixianyu 0:5ca227682ee7 92 return write(n);
lixianyu 0:5ca227682ee7 93 } else if (base == 10) {
lixianyu 0:5ca227682ee7 94 if (n < 0) {
lixianyu 0:5ca227682ee7 95 int t = print('-');
lixianyu 0:5ca227682ee7 96 n = -n;
lixianyu 0:5ca227682ee7 97 return printNumber(n, 10) + t;
lixianyu 0:5ca227682ee7 98 }
lixianyu 0:5ca227682ee7 99 return printNumber(n, 10);
lixianyu 0:5ca227682ee7 100 } else {
lixianyu 0:5ca227682ee7 101 return printNumber(n, base);
lixianyu 0:5ca227682ee7 102 }
lixianyu 0:5ca227682ee7 103 }
lixianyu 0:5ca227682ee7 104
lixianyu 0:5ca227682ee7 105 size_t Print::print(unsigned long n, int base)
lixianyu 0:5ca227682ee7 106 {
lixianyu 0:5ca227682ee7 107 if (base == 0) return write(n);
lixianyu 0:5ca227682ee7 108 else return printNumber(n, base);
lixianyu 0:5ca227682ee7 109 }
lixianyu 0:5ca227682ee7 110
lixianyu 0:5ca227682ee7 111 size_t Print::print(double n, int digits)
lixianyu 0:5ca227682ee7 112 {
lixianyu 0:5ca227682ee7 113 return printFloat(n, digits);
lixianyu 0:5ca227682ee7 114 }
lixianyu 0:5ca227682ee7 115
lixianyu 0:5ca227682ee7 116 #if 0
lixianyu 0:5ca227682ee7 117 size_t Print::println(const __FlashStringHelper *ifsh)
lixianyu 0:5ca227682ee7 118 {
lixianyu 0:5ca227682ee7 119 size_t n = print(ifsh);
lixianyu 0:5ca227682ee7 120 n += println();
lixianyu 0:5ca227682ee7 121 return n;
lixianyu 0:5ca227682ee7 122 }
lixianyu 0:5ca227682ee7 123 #endif
lixianyu 0:5ca227682ee7 124
lixianyu 0:5ca227682ee7 125 size_t Print::print(const Printable& x)
lixianyu 0:5ca227682ee7 126 {
lixianyu 0:5ca227682ee7 127 return x.printTo(*this);
lixianyu 0:5ca227682ee7 128 }
lixianyu 0:5ca227682ee7 129
lixianyu 0:5ca227682ee7 130 size_t Print::println(void)
lixianyu 0:5ca227682ee7 131 {
lixianyu 0:5ca227682ee7 132 return write("\r\n");
lixianyu 0:5ca227682ee7 133 }
lixianyu 0:5ca227682ee7 134
lixianyu 0:5ca227682ee7 135 #if 0
lixianyu 0:5ca227682ee7 136 size_t Print::println(const String &s)
lixianyu 0:5ca227682ee7 137 {
lixianyu 0:5ca227682ee7 138 size_t n = print(s);
lixianyu 0:5ca227682ee7 139 n += println();
lixianyu 0:5ca227682ee7 140 return n;
lixianyu 0:5ca227682ee7 141 }
lixianyu 0:5ca227682ee7 142 #endif
lixianyu 0:5ca227682ee7 143
lixianyu 0:5ca227682ee7 144 size_t Print::println(char *c)
lixianyu 0:5ca227682ee7 145 {
lixianyu 0:5ca227682ee7 146 size_t n = print(c);
lixianyu 0:5ca227682ee7 147 n += println();
lixianyu 0:5ca227682ee7 148 return n;
lixianyu 0:5ca227682ee7 149 }
lixianyu 0:5ca227682ee7 150
lixianyu 0:5ca227682ee7 151 size_t Print::println(char c)
lixianyu 0:5ca227682ee7 152 {
lixianyu 0:5ca227682ee7 153 size_t n = print(c);
lixianyu 0:5ca227682ee7 154 n += println();
lixianyu 0:5ca227682ee7 155 return n;
lixianyu 0:5ca227682ee7 156 }
lixianyu 0:5ca227682ee7 157
lixianyu 0:5ca227682ee7 158 size_t Print::println(unsigned char b, int base)
lixianyu 0:5ca227682ee7 159 {
lixianyu 0:5ca227682ee7 160 size_t n = print(b, base);
lixianyu 0:5ca227682ee7 161 n += println();
lixianyu 0:5ca227682ee7 162 return n;
lixianyu 0:5ca227682ee7 163 }
lixianyu 0:5ca227682ee7 164
lixianyu 0:5ca227682ee7 165 size_t Print::println(int num, int base)
lixianyu 0:5ca227682ee7 166 {
lixianyu 0:5ca227682ee7 167 size_t n = print(num, base);
lixianyu 0:5ca227682ee7 168 n += println();
lixianyu 0:5ca227682ee7 169 return n;
lixianyu 0:5ca227682ee7 170 }
lixianyu 0:5ca227682ee7 171
lixianyu 0:5ca227682ee7 172 size_t Print::println(unsigned int num, int base)
lixianyu 0:5ca227682ee7 173 {
lixianyu 0:5ca227682ee7 174 size_t n = print(num, base);
lixianyu 0:5ca227682ee7 175 n += println();
lixianyu 0:5ca227682ee7 176 return n;
lixianyu 0:5ca227682ee7 177 }
lixianyu 0:5ca227682ee7 178
lixianyu 0:5ca227682ee7 179 size_t Print::println(long num, int base)
lixianyu 0:5ca227682ee7 180 {
lixianyu 0:5ca227682ee7 181 size_t n = print(num, base);
lixianyu 0:5ca227682ee7 182 n += println();
lixianyu 0:5ca227682ee7 183 return n;
lixianyu 0:5ca227682ee7 184 }
lixianyu 0:5ca227682ee7 185
lixianyu 0:5ca227682ee7 186 size_t Print::println(unsigned long num, int base)
lixianyu 0:5ca227682ee7 187 {
lixianyu 0:5ca227682ee7 188 size_t n = print(num, base);
lixianyu 0:5ca227682ee7 189 n += println();
lixianyu 0:5ca227682ee7 190 return n;
lixianyu 0:5ca227682ee7 191 }
lixianyu 0:5ca227682ee7 192
lixianyu 0:5ca227682ee7 193 size_t Print::println(double num, int digits)
lixianyu 0:5ca227682ee7 194 {
lixianyu 0:5ca227682ee7 195 size_t n = print(num, digits);
lixianyu 0:5ca227682ee7 196 n += println();
lixianyu 0:5ca227682ee7 197 return n;
lixianyu 0:5ca227682ee7 198 }
lixianyu 0:5ca227682ee7 199
lixianyu 0:5ca227682ee7 200 size_t Print::println(const Printable& x)
lixianyu 0:5ca227682ee7 201 {
lixianyu 0:5ca227682ee7 202 size_t n = print(x);
lixianyu 0:5ca227682ee7 203 n += println();
lixianyu 0:5ca227682ee7 204 return n;
lixianyu 0:5ca227682ee7 205 }
lixianyu 0:5ca227682ee7 206
lixianyu 0:5ca227682ee7 207 // Private Methods /////////////////////////////////////////////////////////////
lixianyu 0:5ca227682ee7 208
lixianyu 0:5ca227682ee7 209 size_t Print::printNumber(unsigned long n, uint8_t base)
lixianyu 0:5ca227682ee7 210 {
lixianyu 0:5ca227682ee7 211 char buf[8 * sizeof(long) + 1]; // Assumes 8-bit chars plus zero byte.
lixianyu 0:5ca227682ee7 212 char *str = &buf[sizeof(buf) - 1];
lixianyu 0:5ca227682ee7 213
lixianyu 0:5ca227682ee7 214 *str = '\0';
lixianyu 0:5ca227682ee7 215
lixianyu 0:5ca227682ee7 216 // prevent crash if called with base == 1
lixianyu 0:5ca227682ee7 217 if (base < 2) base = 10;
lixianyu 0:5ca227682ee7 218
lixianyu 0:5ca227682ee7 219 do {
lixianyu 0:5ca227682ee7 220 char c = n % base;
lixianyu 0:5ca227682ee7 221 n /= base;
lixianyu 0:5ca227682ee7 222
lixianyu 0:5ca227682ee7 223 *--str = c < 10 ? c + '0' : c + 'A' - 10;
lixianyu 0:5ca227682ee7 224 } while(n);
lixianyu 0:5ca227682ee7 225
lixianyu 0:5ca227682ee7 226 return write(str);
lixianyu 0:5ca227682ee7 227 }
lixianyu 0:5ca227682ee7 228
lixianyu 0:5ca227682ee7 229 size_t Print::printFloat(double number, uint8_t digits)
lixianyu 0:5ca227682ee7 230 {
lixianyu 0:5ca227682ee7 231 size_t n = 0;
lixianyu 0:5ca227682ee7 232
lixianyu 0:5ca227682ee7 233 if (isnan(number)) return print("nan");
lixianyu 0:5ca227682ee7 234 if (isinf(number)) return print("inf");
lixianyu 0:5ca227682ee7 235 if (number > 4294967040.0) return print ("ovf"); // constant determined empirically
lixianyu 0:5ca227682ee7 236 if (number <-4294967040.0) return print ("ovf"); // constant determined empirically
lixianyu 0:5ca227682ee7 237
lixianyu 0:5ca227682ee7 238 // Handle negative numbers
lixianyu 0:5ca227682ee7 239 if (number < 0.0) {
lixianyu 0:5ca227682ee7 240 n += print('-');
lixianyu 0:5ca227682ee7 241 number = -number;
lixianyu 0:5ca227682ee7 242 }
lixianyu 0:5ca227682ee7 243
lixianyu 0:5ca227682ee7 244 // Round correctly so that print(1.999, 2) prints as "2.00"
lixianyu 0:5ca227682ee7 245 double rounding = 0.5;
lixianyu 0:5ca227682ee7 246 for (uint8_t i=0; i<digits; ++i)
lixianyu 0:5ca227682ee7 247 rounding /= 10.0;
lixianyu 0:5ca227682ee7 248
lixianyu 0:5ca227682ee7 249 number += rounding;
lixianyu 0:5ca227682ee7 250
lixianyu 0:5ca227682ee7 251 // Extract the integer part of the number and print it
lixianyu 0:5ca227682ee7 252 unsigned long int_part = (unsigned long)number;
lixianyu 0:5ca227682ee7 253 double remainder = number - (double)int_part;
lixianyu 0:5ca227682ee7 254 n += print(int_part);
lixianyu 0:5ca227682ee7 255
lixianyu 0:5ca227682ee7 256 // Print the decimal point, but only if there are digits beyond
lixianyu 0:5ca227682ee7 257 if (digits > 0) {
lixianyu 0:5ca227682ee7 258 n += print(".");
lixianyu 0:5ca227682ee7 259 }
lixianyu 0:5ca227682ee7 260
lixianyu 0:5ca227682ee7 261 // Extract digits from the remainder one at a time
lixianyu 0:5ca227682ee7 262 while (digits-- > 0) {
lixianyu 0:5ca227682ee7 263 remainder *= 10.0;
lixianyu 0:5ca227682ee7 264 int toPrint = int(remainder);
lixianyu 0:5ca227682ee7 265 n += print(toPrint);
lixianyu 0:5ca227682ee7 266 remainder -= toPrint;
lixianyu 0:5ca227682ee7 267 }
lixianyu 0:5ca227682ee7 268
lixianyu 0:5ca227682ee7 269 return n;
lixianyu 0:5ca227682ee7 270 }
lixianyu 0:5ca227682ee7 271