Alexander Medvedev / lcd128lib

Lightweight proportional text library for C12832 LCD. Easy to modify, fast, robust and compact. Nice font, good for text driven menus, messages, etc. Fell free to use and modify in any projects.

Dependents:   app-board-lcd128

Documentation will be here later.

Usage sample:

Import programapp-board-lcd128

Sample usage of lightweight C12832 LCD library

Last commit 14 Jan 2017 by Alexander Medvedev

Diff: lcd128lib.h

Revision:
5:ff31feb7d966
Parent:
4:1bd241d1fad0
Child:
6:5cd32671a837
diff -r 1bd241d1fad0 -r ff31feb7d966 lcd128lib.h
--- a/lcd128lib.h	Mon May 26 20:14:58 2014 +0000
+++ b/lcd128lib.h	Wed May 28 10:09:01 2014 +0000
@@ -12,18 +12,18 @@
 // 512 byte total buffer size
 //
  
-#define LCD_X 128      // In pixels
-#define LCD_Y 4        // In rows by 8 pixels each
-#define LCD_SIZE 512   // In bytes, = LCD_X*LCD_Y
+#define LCD_X       128     // In pixels
+#define LCD_Y       4       // In rows by 8 pixels each
+#define LCD_SIZE    512     // In bytes, = LCD_X*LCD_Y
     
 //
 // Proportional font  
 //
 
 typedef struct {
-    char first_code, glyphs_total;   
-    const char* widths;
-    const char** glyphs;    
+    unsigned char first_code, glyphs_total;   
+    const unsigned char*  widths;
+    const unsigned char** glyphs;    
 } lcd128font; 
  
 //
@@ -35,10 +35,20 @@
 // E - End one
 //
 
-#define LCD_BAR_B 0x1c
-#define LCD_BAR_F 0x3e 
-#define LCD_BAR_U 0x22
-#define LCD_BAR_E 0x1c
+#define LCD_BAR_B   0x1c
+#define LCD_BAR_F   0x3e 
+#define LCD_BAR_U   0x22
+#define LCD_BAR_E   0x1c
+
+//
+// Special Glyphs for menu / interface
+//
+
+#define LCD_RADIO_OFF       128
+#define LCD_RADIO_ON        129
+#define LCD_CHECKBOX_OFF    130
+#define LCD_CHECKBOX_ON     131
+#define LCD_SELECTOR        132
 
 //
 // lcd128 class
@@ -59,13 +69,13 @@
     bool underline;
             
     // buffer 
-    char buffer[LCD_SIZE];
+    unsigned char buffer[LCD_SIZE];
          
     // Cursor position
     int X, Y;
          
     // SPI writer with data / command       
-    void write(char byte, bool cmd = false);
+    void write(unsigned char byte, bool cmd = false);
 
     public:
     
@@ -90,10 +100,10 @@
     void XY(int x = 0, int y = 0);          // Change write position X in pixels, Y in rows
     
     // Vertical 8bit pixel row
-    void Write(char byte);                  // One 8bit row
-    void Write(char byte, int count);       // One 8bit row * 'count' times
-    void Write(char* data, int size);       // 'size' 8bit rows
-    void Write2(char* data, int size);      // Bold: 'size' 8bit rows * 2   
+    void Write(unsigned char byte);                  // One 8bit row
+    void Write(unsigned char byte, int count);       // One 8bit row * 'count' times
+    void Write(unsigned char * data, int size);       // 'size' 8bit rows
+    void Write2(unsigned char * data, int size);      // Bold: 'size' 8bit rows * 2   
     
     // Character drawing  
     void Character(char chr);               // Draw one font character (with invert and bold opt-s)