From 4b2b39e383d7fec0f94deb0f9a75a493bce2d0ca Mon Sep 17 00:00:00 2001
From: "David A. Mellis" <d.mellis@arduino.cc>
Date: Wed, 7 May 2008 18:24:49 +0000
Subject: Changing Print class to use regular virtual write() function (instead
 of my hack ed together version).

---
 libraries/LiquidCrystal/LiquidCrystal.cpp | 18 +++++++++---------
 libraries/LiquidCrystal/LiquidCrystal.h   |  8 ++++----
 2 files changed, 13 insertions(+), 13 deletions(-)

(limited to 'libraries/LiquidCrystal')

diff --git a/libraries/LiquidCrystal/LiquidCrystal.cpp b/libraries/LiquidCrystal/LiquidCrystal.cpp
index c5acc85..b5f2cd4 100755
--- a/libraries/LiquidCrystal/LiquidCrystal.cpp
+++ b/libraries/LiquidCrystal/LiquidCrystal.cpp
@@ -26,7 +26,7 @@
 
 LiquidCrystal::LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable,
   uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3,
-  uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7) : Print(baseWrite),
+  uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7) :
   _four_bit_mode(0), _rs_pin(rs), _rw_pin(rw), _enable_pin(enable)
 {
   _data_pins[0] = d0;
@@ -52,7 +52,7 @@ LiquidCrystal::LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable,
 }
 
 LiquidCrystal::LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable,
-  uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3) : Print(baseWrite),
+  uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3) :
   _four_bit_mode(1), _rs_pin(rs), _rw_pin(rw), _enable_pin(enable)
 {
   _data_pins[0] = d0;
@@ -91,11 +91,15 @@ void LiquidCrystal::setCursor(int col, int row)
   command(0x80 | (col + row_offsets[row]));
 }
 
-void LiquidCrystal::command(int value) {
-  write(value, LOW);
+void LiquidCrystal::command(uint8_t value) {
+  send(value, LOW);
 }
 
-void LiquidCrystal::write(int value, int mode) {
+void LiquidCrystal::write(uint8_t value) {
+  send(value, HIGH);
+}
+
+void LiquidCrystal::send(uint8_t value, uint8_t mode) {
   digitalWrite(_rs_pin, mode);
   digitalWrite(_rw_pin, LOW);
 
@@ -122,7 +126,3 @@ void LiquidCrystal::write(int value, int mode) {
     digitalWrite(_enable_pin, LOW);
   }
 }
-
-void baseWrite(uint8_t value, void *instance) {
-  ((LiquidCrystal *) instance)->write(value);
-}
diff --git a/libraries/LiquidCrystal/LiquidCrystal.h b/libraries/LiquidCrystal/LiquidCrystal.h
index c4746c5..a5edc5f 100755
--- a/libraries/LiquidCrystal/LiquidCrystal.h
+++ b/libraries/LiquidCrystal/LiquidCrystal.h
@@ -16,9 +16,11 @@ public:
   void shiftDisplayLeft();
   void shiftDisplayRight();
   */
-  void write(int, int = 1);
-  void command(int);
+  virtual void write(uint8_t);
+  void command(uint8_t);
 private:
+  void send(uint8_t, uint8_t);
+  
   uint8_t _four_bit_mode;
   uint8_t _rs_pin; // LOW: command.  HIGH: character.
   uint8_t _rw_pin; // LOW: write to LCD.  HIGH: read from LCD.
@@ -26,6 +28,4 @@ private:
   uint8_t _data_pins[8];
 };
 
-void baseWrite(uint8_t, void *);
-
 #endif
-- 
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