eDisp.h

00001 /* mbed eDISP Library
00002  * Copyright (c) 2010 todotani
00003  * Version 0.1 (March 6, 2010)
00004  * Released under the MIT License: http://mbed.org/license/mit
00005  */
00006 
00007 #ifndef MBED_EDISP_H
00008 #define MBED_EDISP_H
00009 
00010 #include "mbed.h"
00011 #include "Stream.h"
00012 
00013 // Text Color code
00014 #define BLACK   30
00015 #define RED     31
00016 #define GREEN   32
00017 #define YELLOW  33
00018 #define BLUE    34
00019 #define PURPLE  35
00020 #define AQUA    36
00021 #define WHITE   37
00022 #define TRANSPARENT 49      // default background color
00023 
00024 // RGB555 color code (converted from 32bit color code)
00025 #define RGB_Black   (0      << 10) + (0      << 5) + 0
00026 #define RGB_Navy    (0      << 10) + (0      << 5) + 0x80/8
00027 #define RGB_Silver  (0xc0/8 << 10) + (0xc0/8 << 5) + 0xc0/8
00028 #define RGB_Blue    (0      << 10) + (0      << 5) + 0xff/8
00029 #define RGB_Maroon  (0x80/8 << 10) + (0      << 5) + 0
00030 #define RGB_Purple  (0x80/8 << 10) + (0      << 5) + 0x80/8
00031 #define RGB_Red     (0xff/8 << 10) + (0      << 5) + 0
00032 #define RGB_Fuchsia (0xff/8 << 10) + (0      << 5) + 0xff/8
00033 #define RGB_Green   (0      << 10) + (0x80/8 << 5) + 0
00034 #define RGB_Teal    (0      << 10) + (0x80/8 << 5) + 0x80/8
00035 #define RGB_Lime    (0      << 10) + (0xff/8 << 5) + 0
00036 #define RGB_Aqua    (0      << 10) + (0xff/8 << 5) + 0xff/8
00037 #define RGB_Olive   (0x80/8 << 10) + (0x80/8 << 5) + 0
00038 #define RGB_Gray    (0x80/8 << 10) + (0x80/8 << 5) + 0x80/8
00039 #define RGB_Yellow  (0xff/8 << 10) + (0xff/8 << 5) + 0
00040 #define RGB_White   (0xff/8 << 10) + (0xff/8 << 5) + 0xff/8
00041 
00042 
00043 namespace mbed {
00044 
00045 /* Class: eDisp
00046  * Driver for eDISP (http://www.ddlab.jp/shop/edisp/syouhin.cgi)
00047  *
00048  * Allows you to print to a Text LCD screen, set color and locate/cls. 
00049  * Also support graphics functions fillRect, drawLine
00050  *
00051  */
00052 class eDisp : public Stream {
00053 public:
00054     /* Constructor: eDisp
00055      * Create a eDisp object, connected to the specified pins
00056      *
00057      * All signals must be connected to pair of Serial Tx/Rx pin
00058      * (p9/p10, p13/p14 or p28/p27)
00059      *
00060      * Variables:
00061      *  tx - Used to specify tx of Serial port
00062      *  rx - Used to specify rx of Serial port (acturally not used)
00063      *  baud - baudrate of serial port
00064      */
00065     eDisp(PinName tx, PinName rx, int baud = 19200,
00066         int columns = 40, int rows = 15);
00067 
00068 #if 0 // Inhereted from Stream, for documentation only
00069     /* Function: putc
00070      *  Write a character
00071      *
00072      * Variables:
00073      *  c - The character to write to the serial port
00074      */
00075     int putc(int c);
00076 
00077     /* Function: printf
00078      *  Write a formated string
00079      *
00080      * Variables:
00081      *  format - A printf-style format string, followed by the
00082      *      variables to use in formating the string.
00083      */
00084     int printf(const char* format, ...);
00085 #endif
00086 
00087     /* Function: locate
00088      * set cursor position
00089      * Variables:
00090      *   colum - x position (0 - 39)
00091      *   row   - y position (0 - 14)
00092      */
00093     void locate(int column, int row);
00094 
00095     /* Function: textColor
00096      * Set text color
00097      * Variables:
00098      *   color - Text color code
00099      */
00100     void textColor(int color);
00101 
00102     /* Function: backgroundColor
00103      * Set backgound color
00104      * Variables:
00105      *   color - Text color code
00106      */
00107     void backgroundColor(int color);
00108 
00109     /* Function: cls
00110      * Clear the screen, and locate to 0,0
00111      */
00112     void cls();
00113 
00114     /* Function: reset
00115      * Set default text/backgroudn color, clear the screen, and locate to 0,0
00116      */
00117     void reset();
00118 
00119     /* Function: fillRect
00120      * Fill secreen with specified color
00121      * Variables:
00122      *   buffer - number of screen buffer (0 - 3)
00123      *   width  - width of rectangle (1 - 320)
00124      *   hight  - hight of rectangle (1 - 240)
00125      *   x      - x coordinate (0 - 319) of upper left point
00126      *   y      - y coordinate (0 - 239) of upper left point
00127      *   color  - RGB555 color code  0rrrrrgggggbbbbb
00128      */
00129     void fillRect(int buffer, int width, int hight, int x, int y, int color );
00130 
00131     /* Function: drawLine
00132      * draw line from (x0, y0) to (x1, y1)
00133      * Variables:
00134      *   buffer - number of screen buffer (0 - 3)
00135      *   x0     - coordinate x (0 - 319) of start point
00136      *   y0     - coordinate y (0 - 319) of start point
00137      *   x1     - coordinate x (0 - 319) of end point
00138      *   y1     - coordinate y (0 - 319) of end point
00139      *   color  - RGB555 color code  0rrrrrgggggbbbbb
00140      */
00141     void drawLine(int buffer, int x0, int y0, int x1, int y1, int color);
00142 
00143 protected:
00144     virtual int _putc(int c);
00145     virtual int _getc();
00146     void newline();
00147 
00148     Serial _serial;
00149     int _baud;
00150     int _row;
00151     int _column;
00152     int _columns;   // Number of max columns
00153     int _rows;      // Number of max rows
00154 };
00155 
00156 #endif
00157 }