From 4a055bfed93bbe8ec0d238cde315b86db8fc67a7 Mon Sep 17 00:00:00 2001
From: Haiyan Zhang <haiyan@gmail.com>
Date: Sun, 10 Aug 2014 23:49:36 +0100
Subject: [PATCH] Extra function overloads for Strings and Floats

---
 SeeedOLED.cpp | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++
 SeeedOLED.h   |  2 ++
 2 files changed, 70 insertions(+)

diff --git a/SeeedOLED.cpp b/SeeedOLED.cpp
index 52d6e3a..e48e1e4 100644
--- a/SeeedOLED.cpp
+++ b/SeeedOLED.cpp
@@ -224,6 +224,15 @@ void SeeedOLED::putString(const char *String)
     }
 }
 
+void SeeedOLED::putString(char *String)
+{
+    unsigned char i=0;
+    while(String[i])
+    {
+        putChar(String[i]);
+        i++;
+    }
+}
 unsigned char SeeedOLED::putNumber(long long_num)
 {
   unsigned char char_buffer[10]="";
@@ -258,6 +267,65 @@ unsigned char SeeedOLED::putNumber(long long_num)
 
 }
 
+unsigned char SeeedOLED::putFloat(float float_num)
+{
+    unsigned char char_buffer[10]="";
+    unsigned char i = 0;
+    unsigned char f = 0;
+    long long_num = (long)float_num;
+    int places = 4;
+    
+    if (long_num < 0)
+    {
+        f=1;
+        putChar('-');
+        long_num = -long_num;
+        float_num = -float_num;
+    }
+    else if (long_num == 0)
+    {
+        f=1;
+        putChar('0');
+        return f;
+    }
+    
+    while (long_num > 0)
+    {
+        char_buffer[i++] = long_num % 10;
+        long_num /= 10;
+    }
+    
+    f=f+i;
+    for(; i > 0; i--)
+    {
+        putChar('0'+ char_buffer[i - 1]);
+    }
+    
+    putChar('.');
+    long_num = (float_num*1000.0)- ((long)float_num*1000);
+    if (long_num > 0) {
+        //long_num = 67;//float_num*1000.0;
+        unsigned char char_buffer_f[10]="";
+        i = 0;
+        while (long_num > 0)
+        {
+            char_buffer_f[i++] = long_num % 10;
+            long_num /= 10;
+        }
+        
+        f=f+i;
+        for(; i > 0; i--)
+        {
+            putChar('0'+ char_buffer_f[i - 1]);
+        }
+        
+    }
+    
+    return f;
+    
+}
+
+
 void SeeedOLED::drawBitmap(unsigned char *bitmaparray,int bytes)
 {
   char localAddressMode = addressingMode;
diff --git a/SeeedOLED.h b/SeeedOLED.h
index 8ddea21..2c74e38 100644
--- a/SeeedOLED.h
+++ b/SeeedOLED.h
@@ -81,7 +81,9 @@ void clearDisplay();
 void setBrightness(unsigned char Brightness);
 void putChar(unsigned char c);
 void putString(const char *String);
+void putString(char *String);
 unsigned char putNumber(long n);
+unsigned char putFloat(float n);
 
 void drawBitmap(unsigned char *bitmaparray,int bytes);