From 320ef7d54dd4a09e126362da42a25e8f7af5efd3 Mon Sep 17 00:00:00 2001
From: "rjbatista@gmail.com"
 <rjbatista@gmail.com@f0354187-03e1-8ba3-851e-26a5c8714c44>
Date: Wed, 19 Oct 2011 23:57:43 +0000
Subject: [PATCH] added support for String Object

---
 CHANGES.txt |  3 ++-
 TM1638.cpp  | 14 ++++++++++++++
 TM1638.h    |  2 ++
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/CHANGES.txt b/CHANGES.txt
index 8a23e95..47b8bdf 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,5 +1,6 @@
 Version 1.3.0
 
+- added support for String Object;
 - added support for removing leading zeros in displaying numbers.
 
 Version 1.2.0
@@ -12,4 +13,4 @@ Version 1.1.0
 
 Version 1.0.0
 
-- initial Release.
+- initial release.
diff --git a/TM1638.cpp b/TM1638.cpp
index 6f16280..d17fdc0 100644
--- a/TM1638.cpp
+++ b/TM1638.cpp
@@ -20,6 +20,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "WProgram.h"
 #include "TM1638.h"
+#include "String.h"
 
 TM1638::TM1638(byte dataPin, byte clockPin, byte strobePin, boolean activateDisplay, byte intensity)
 {
@@ -121,6 +122,19 @@ void TM1638::setDisplayToString(const char* string, const byte font[])
   }
 }
 
+void TM1638::setDisplayToString(const String string, const byte font[])
+{
+  int stringLength = string.length();
+
+  for (int i = 0; i < 8; i++) {
+    if (i < stringLength) {
+		sendData(i << 1, font[string.charAt(i) - 32]);
+	} else {
+		sendData(i << 1, 0);
+	}
+  }
+}
+
 void TM1638::setLED(byte color, byte pos)
 {
     sendData((pos << 1) + 1, color);  
diff --git a/TM1638.h b/TM1638.h
index 9c1e596..060b34d 100644
--- a/TM1638.h
+++ b/TM1638.h
@@ -52,6 +52,8 @@ class TM1638
 	void clearDisplay();
     /** Set the display to the string (defaults to built in font) */
 	void setDisplayToString(const char* string, const byte font[] = FONT_DEFAULT);
+    /** Set the display to the String (defaults to built in font) */
+	void setDisplayToString(String string, const byte font[] = FONT_DEFAULT);
 
     /** Set the LED at pos to color (TM1638_COLOR_RED, TM1638_COLOR_GREEN or both) */
     void setLED(byte color, byte pos);