From 520031a780b56a0d5c2f0de830d290f549f041bf Mon Sep 17 00:00:00 2001
From: KTOWN <contact@microbuilder.eu>
Date: Tue, 8 Oct 2013 17:37:03 +0200
Subject: [PATCH] Basic Adafruit_GFX support

---
 Adafruit_RA8875.cpp | 16 +++++++++++++++-
 Adafruit_RA8875.h   | 18 ++++++++++++++++--
 2 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/Adafruit_RA8875.cpp b/Adafruit_RA8875.cpp
index 4d10b77..4cc369d 100644
--- a/Adafruit_RA8875.cpp
+++ b/Adafruit_RA8875.cpp
@@ -2,7 +2,7 @@
 #include <SPI.h>
 #include "Adafruit_RA8875.h"
 
-Adafruit_RA8875::Adafruit_RA8875(uint8_t CS, uint8_t RST) {
+Adafruit_RA8875::Adafruit_RA8875(uint8_t CS, uint8_t RST) : Adafruit_GFX(480, 272) {
   _cs = CS;
   _rst = RST;
 }
@@ -180,6 +180,20 @@ void Adafruit_RA8875::fillRect(void) {
   writeData(RA8875_DCR_LINESQUTRI_START | RA8875_DCR_FILL | RA8875_DCR_DRAWSQUARE);
 }
 
+void Adafruit_RA8875::drawPixel(int16_t x, int16_t y, uint16_t color)
+{
+  writeReg(RA8875_CURH0, x);
+  writeReg(RA8875_CURH1, x >> 8);
+  writeReg(RA8875_CURV0, y);
+  writeReg(RA8875_CURV1, y >> 8);  
+  writeCommand(RA8875_MRWC);
+  digitalWrite(_cs, LOW);
+  SPI.transfer(RA8875_DATAWRITE);
+  SPI.transfer(color >> 8);
+  SPI.transfer(color);
+  digitalWrite(_cs, HIGH);
+}
+
 void Adafruit_RA8875::circleHelper(int16_t x0, int16_t y0, int16_t r, uint16_t color, bool filled)
 {
   /* Set X */
diff --git a/Adafruit_RA8875.h b/Adafruit_RA8875.h
index dbea8e9..3d7ca90 100644
--- a/Adafruit_RA8875.h
+++ b/Adafruit_RA8875.h
@@ -1,9 +1,20 @@
-#include <Arduino.h>
+#if ARDUINO >= 100
+ #include "Arduino.h"
+ #include "Print.h"
+#else
+ #include "WProgram.h"
+#endif
+
+#ifdef __AVR__
+  #include <avr/pgmspace.h>
+#endif
+
+#include <Adafruit_GFX.h>
 
 // Sizes!
 enum RA8875sizes { RA8875_480x272, RA8875_800x480 };
 
-class Adafruit_RA8875 {
+class Adafruit_RA8875 : public Adafruit_GFX {
  public:
   Adafruit_RA8875(uint8_t cs, uint8_t rst);
   
@@ -16,6 +27,9 @@ class Adafruit_RA8875 {
   void    graphicsMode(void);
   void    setXY(uint16_t x, uint16_t y);
   void    fillRect(void);
+
+  /* Mandatory Adafruit_GFX functions */
+  void    drawPixel(int16_t x, int16_t y, uint16_t color);
   
   /* HW accelerated wrapper functions */
   void    drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);