From 32e57dac2e61e79b029593eb4d34d727bcc10678 Mon Sep 17 00:00:00 2001
From: iperry <iperry@749a229e-a60e-11de-b98f-4500b42dc123>
Date: Thu, 17 Dec 2009 02:37:07 +0000
Subject: Initial commit of library code, moved from leaftest repo

git-svn-id: https://leaflabs.googlecode.com/svn/trunk/library@69 749a229e-a60e-11de-b98f-4500b42dc123
---
 src/wiring/Print.cpp | 215 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 215 insertions(+)
 create mode 100644 src/wiring/Print.cpp

(limited to 'src/wiring/Print.cpp')

diff --git a/src/wiring/Print.cpp b/src/wiring/Print.cpp
new file mode 100644
index 0000000..20f5e40
--- /dev/null
+++ b/src/wiring/Print.cpp
@@ -0,0 +1,215 @@
+/*
+ Print.cpp - Base class that provides print() and println()
+ Copyright (c) 2008 David A. Mellis.  All right reserved.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+ Modified 23 November 2006 by David A. Mellis
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+#include "wiring.h"
+
+#include "Print.h"
+
+// Public Methods //////////////////////////////////////////////////////////////
+
+/* default implementation: may be overridden */
+void Print::write(const char *str)
+{
+  while (*str)
+    write(*str++);
+}
+
+/* default implementation: may be overridden */
+void Print::write(const uint8_t *buffer, size_t size)
+{
+  while (size--)
+    write(*buffer++);
+}
+
+void Print::print(uint8_t b)
+{
+  this->write(b);
+}
+
+void Print::print(char c)
+{
+  print((byte) c);
+}
+
+void Print::print(const char str[])
+{
+  write(str);
+}
+
+void Print::print(int n)
+{
+  print((long) n);
+}
+
+void Print::print(unsigned int n)
+{
+  print((unsigned long) n);
+}
+
+void Print::print(long n)
+{
+  if (n < 0) {
+    print('-');
+    n = -n;
+  }
+  printNumber(n, 10);
+}
+
+void Print::print(unsigned long n)
+{
+  printNumber(n, 10);
+}
+
+void Print::print(long n, int base)
+{
+  if (base == 0)
+    print((char) n);
+  else if (base == 10)
+    print(n);
+  else
+    printNumber(n, base);
+}
+
+void Print::print(double n)
+{
+  printFloat(n, 2);
+}
+
+void Print::println(void)
+{
+  print('\r');
+  print('\n');  
+}
+
+void Print::println(char c)
+{
+  print(c);
+  println();  
+}
+
+void Print::println(const char c[])
+{
+  print(c);
+  println();
+}
+
+void Print::println(uint8_t b)
+{
+  print(b);
+  println();
+}
+
+void Print::println(int n)
+{
+  print(n);
+  println();
+}
+
+void Print::println(unsigned int n)
+{
+  print(n);
+  println();
+}
+
+void Print::println(long n)
+{
+  print(n);
+  println();  
+}
+
+void Print::println(unsigned long n)
+{
+  print(n);
+  println();  
+}
+
+void Print::println(long n, int base)
+{
+  print(n, base);
+  println();
+}
+
+void Print::println(double n)
+{
+  print(n);
+  println();
+}
+
+// Private Methods /////////////////////////////////////////////////////////////
+
+void Print::printNumber(unsigned long n, uint8_t base)
+{
+  unsigned char buf[8 * sizeof(long)]; // Assumes 8-bit chars. 
+  unsigned long i = 0;
+
+  if (n == 0) {
+    print('0');
+    return;
+  } 
+
+  while (n > 0) {
+    buf[i++] = n % base;
+    n /= base;
+  }
+
+  for (; i > 0; i--)
+    print((char) (buf[i - 1] < 10 ?
+      '0' + buf[i - 1] :
+      'A' + buf[i - 1] - 10));
+}
+
+void Print::printFloat(double number, uint8_t digits) 
+{ 
+  // Handle negative numbers
+  if (number < 0.0)
+  {
+     print('-');
+     number = -number;
+  }
+
+  // Round correctly so that print(1.999, 2) prints as "2.00"
+  double rounding = 0.5;
+  for (uint8_t i=0; i<digits; ++i)
+    rounding /= 10.0;
+  
+  number += rounding;
+
+  // Extract the integer part of the number and print it
+  unsigned long int_part = (unsigned long)number;
+  double remainder = number - (double)int_part;
+  print(int_part);
+
+  // Print the decimal point, but only if there are digits beyond
+  if (digits > 0)
+    print("."); 
+
+  // Extract digits from the remainder one at a time
+  while (digits-- > 0)
+  {
+    remainder *= 10.0;
+    int toPrint = int(remainder);
+    print(toPrint);
+    remainder -= toPrint; 
+  } 
+}
-- 
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