From 4ff68b8f1a9706aa2bb936ed541848343602517c Mon Sep 17 00:00:00 2001
From: Stanley Huang <stanleyhuangyc@gmail.com>
Date: Thu, 4 Jul 2013 16:58:54 +0800
Subject: update MultiLCD library

---
 libraries/MultiLCD/MultiLCD.cpp | 37 ++++++++++++++++++++++++++++++++++++-
 libraries/MultiLCD/MultiLCD.h   | 11 -----------
 libraries/MultiLCD/PCD8544.cpp  | 19 ++++++++++---------
 3 files changed, 46 insertions(+), 21 deletions(-)

(limited to 'libraries')

diff --git a/libraries/MultiLCD/MultiLCD.cpp b/libraries/MultiLCD/MultiLCD.cpp
index 1856a21..1865cc5 100644
--- a/libraries/MultiLCD/MultiLCD.cpp
+++ b/libraries/MultiLCD/MultiLCD.cpp
@@ -55,6 +55,14 @@ void LCD_ZTOLED::setCursor(byte column, byte line)
 
 size_t LCD_ZTOLED::write(uint8_t c)
 {
+    if (c == '\n') {
+        m_column = 0;
+        m_page += (m_font == FONT_SIZE_SMALL) ? 1 : 2;
+        return 0;
+    } else if (c == '\r') {
+        m_column = 0;
+        return 0;
+    }
     if (m_font == FONT_SIZE_SMALL) {
         if (c <= 0x20 || c >= 0x7f) {
             ScI2cMxFillArea(OLED_ADDRESS, m_column, m_column + 5, m_page, m_page, 0);
@@ -72,6 +80,16 @@ size_t LCD_ZTOLED::write(uint8_t c)
     return 1;
 }
 
+/*
+void LCD_ZTOLED::print(const char* s)
+{
+    ScI2cMxDisplay8x16Str(OLED_ADDRESS, m_page, m_column, s);
+    m_column += (strlen(s) << 3);
+    m_page += (m_column >> 7) << 1;
+    m_column %= 0x7f;
+}
+*/
+
 void LCD_ZTOLED::writeDigit(byte n)
 {
     if (m_font == FONT_SIZE_SMALL) {
@@ -166,6 +184,13 @@ void LCD_SSD1306::setCursor(byte column, byte line)
 
 size_t LCD_SSD1306::write(uint8_t c)
 {
+    if (c == '\n') {
+        setCursor(0, m_row + ((m_font == FONT_SIZE_SMALL) ? 1 : 2));
+        return 1;
+    } else if (c == '\r') {
+        m_col = 0;
+        return 1;
+    }
     if (m_font == FONT_SIZE_SMALL) {
         Wire.beginTransmission(_i2caddr);
         Wire.write(0x40);
@@ -181,7 +206,11 @@ size_t LCD_SSD1306::write(uint8_t c)
             }
         }
         Wire.endTransmission();
-        m_col += 8;
+        m_col += 6;
+        if (m_col >= 128) {
+            m_col = 0;
+            m_row ++;
+        }
     } else {
         if (c > 0x20 && c < 0x7f) {
             c -= 0x21;
@@ -231,6 +260,10 @@ size_t LCD_SSD1306::write(uint8_t c)
             Wire.endTransmission();
         }
         m_col += 9;
+        if (m_col >= 128) {
+            m_col = 0;
+            m_row += 2;
+        }
     }
     return 1;
 }
@@ -456,5 +489,7 @@ void LCD_SSD1306::clear(byte x, byte y, byte width, byte height)
             Wire.endTransmission();
         }
     }
+
+    setCursor(0, 0);
     TWBR = twbrbackup;
 }
diff --git a/libraries/MultiLCD/MultiLCD.h b/libraries/MultiLCD/MultiLCD.h
index 0809bf6..734ed70 100644
--- a/libraries/MultiLCD/MultiLCD.h
+++ b/libraries/MultiLCD/MultiLCD.h
@@ -28,7 +28,6 @@ public:
     virtual void backlight(bool on) {}
     virtual byte getLines() = 0;
     virtual byte getCols() = 0;
-    virtual void changeLine() {}
     virtual void clearLine(byte line) {}
     void draw(const PROGMEM byte* buffer, byte x, byte y, byte width, byte height) {}
     void printInt(uint16_t value, char padding = -1);
@@ -53,11 +52,6 @@ public:
         setCursor(0, line);
         for (byte i = 14; i > 0; i--) write(' ');
     }
-    void changeLine()
-    {
-        column = 0;
-        line ++;
-    }
     void draw(const PROGMEM byte* buffer, byte x, byte y, byte width, byte height);
 private:
     void writeDigit(byte n);
@@ -73,11 +67,6 @@ public:
     byte getLines() { return 4; }
     byte getCols() { return 16; }
     void setCursor(byte column, byte line);
-    void changeLine()
-    {
-        m_column = 0;
-        m_page += 2;
-    }
     size_t write(uint8_t c);
     //void print(const char* s);
     void writeDigit(byte n);
diff --git a/libraries/MultiLCD/PCD8544.cpp b/libraries/MultiLCD/PCD8544.cpp
index 9bd62c5..6b339fe 100644
--- a/libraries/MultiLCD/PCD8544.cpp
+++ b/libraries/MultiLCD/PCD8544.cpp
@@ -185,19 +185,20 @@ void PCD8544::createChar(unsigned char chr, const unsigned char *glyph)
 }
 
 
-#if ARDUINO < 100
-void PCD8544::write(uint8_t chr)
-#else
 size_t PCD8544::write(uint8_t chr)
-#endif
 {
     // ASCII 7-bit only...
-    if (chr >= 0x80) {
-#if ARDUINO < 100
-        return;
-#else
+    if (chr >= 0x7f) {
+        return 0;
+    }
+
+    if (chr == '\n') {
+        column = 0;
+        line = (line + 1) % (PCD8544_HEIGHT/9 + 1);
+        return 0;
+    } else if (chr == '\r') {
+        column = 0;
         return 0;
-#endif
     }
 
     const unsigned char *glyph;
-- 
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