NokiaLCD.h

00001 /* mbed NokiaLCD Library, for a 130x130 Nokia colour LCD
00002  * Copyright (c) 2007-2010, sford
00003  *
00004  * Permission is hereby granted, free of charge, to any person obtaining a copy
00005  * of this software and associated documentation files (the "Software"), to deal
00006  * in the Software without restriction, including without limitation the rights
00007  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00008  * copies of the Software, and to permit persons to whom the Software is
00009  * furnished to do so, subject to the following conditions:
00010  *
00011  * The above copyright notice and this permission notice shall be included in
00012  * all copies or substantial portions of the Software.
00013  *
00014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00017  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00018  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00019  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00020  * THE SOFTWARE.
00021  */
00022 
00023 #ifndef MBED_NOKIALCD_H
00024 #define MBED_NOKIALCD_H
00025 
00026 #include "mbed.h"
00027 
00028 /** An interface for the 130x130 Nokia Mobile phone screens
00029  *
00030  * @code
00031  * #include "mbed.h"
00032  * #include "NokiaLCD.h"
00033  *
00034  * NokiaLCD lcd(p5, p7, p8, p9, NokiaLCD::6610); // mosi, sclk, cs, rst, type
00035  *
00036  * int main() {
00037  *     lcd.printf("Hello World!");
00038  * }
00039  * @endcode
00040  */
00041 class NokiaLCD : public Stream {
00042 
00043 public:
00044     /** LCD panel format */
00045     enum LCDType {
00046         LCD6100     /**< Nokia 6100, as found on sparkfun board (default) */
00047         , LCD6610   /**< Nokia 6610, as found on olimex board */
00048         , PCF8833
00049     };
00050 
00051     /** Create and Nokia LCD interface, using a SPI and two DigitalOut interfaces
00052      *
00053      * @param mosi SPI data out
00054      * @param sclk SPI clock
00055      * @param cs Chip Select (DigitalOut)
00056      * @param rst Reset (DigitalOut)
00057      * @param type The LCDType to select driver chip variants
00058      */
00059     NokiaLCD(PinName mosi, PinName sclk, PinName cs, PinName rst, LCDType type = LCD6100, int contrast = 39);
00060 
00061 #if DOXYGEN_ONLY
00062     /** Write a character to the LCD
00063      *
00064      * @param c The character to write to the display
00065      */
00066     int putc(int c);
00067 
00068     /** Write a formated string to the LCD
00069      *
00070      * @param format A printf-style format string, followed by the
00071      *               variables to use in formating the string.
00072      */
00073     int printf(const char* format, ...);
00074 #endif
00075 
00076     /** Locate to a screen column and row
00077      *
00078      * @param column  The horizontal position from the left, indexed from 0
00079      * @param row     The vertical position from the top, indexed from 0
00080      */
00081     void locate(int column, int row);
00082 
00083     /** Clear the screen and locate to 0,0 */
00084     void cls();
00085 
00086     /** Set a pixel on te screen
00087      * 
00088      * @param x horizontal position from left
00089      * @param y vertical position from top
00090      * @param colour 24-bit colour in format 0x00RRGGBB
00091      */
00092     void pixel(int x, int y, int colour);
00093     
00094     /** Fill an area of the screen
00095      * 
00096      * @param x horizontal position from left
00097      * @param y vertical position from top
00098      * @param width width in pixels
00099      * @param height height in pixels
00100      * @param colour 24-bit colour in format 0x00RRGGBB
00101      */    
00102     void fill(int x, int y, int width, int height, int colour);
00103     void circle(int x0, int y0, int r, int colour);                 // Added this to create circles easy. 
00104     void line(int x0, int y0, int x1, int y1, int colour);          // Added this to create lines easy. 
00105 
00106     void blit(int x, int y, int width, int height, const int* colour);
00107     void bitblit(int x, int y, int width, int height, const char* bitstream);
00108 
00109     int width();
00110     int height();
00111     int columns();
00112     int rows();
00113 
00114     void reset(int contrast);
00115 
00116     /** Set the foreground colour
00117      * 
00118      * @param c 24-bit colour
00119      */
00120     void foreground(int c);
00121 
00122     /** Set the background colour
00123      * 
00124      * @param c 24-bit colour
00125      */
00126     void background(int c);
00127     
00128     /** Move to the next line
00129      *
00130      */
00131     void newline();
00132     
00133 protected:
00134     virtual void _window(int x, int y, int width, int height);
00135     virtual void _putp(int colour);
00136 
00137     void command(int value);
00138     void data(int value);
00139 
00140     virtual int _putc(int c);
00141     virtual int _getc() {
00142         return 0;
00143     }
00144     void putp(int v);
00145     void window(int x, int y, int width, int height);
00146 
00147     SPI _spi;
00148     DigitalOut _rst;
00149     DigitalOut _cs;
00150 
00151     LCDType _type;
00152     int _row, _column, _rows, _columns, _foreground, _background, _width, _height;
00153 };
00154 
00155 #endif
00156 
00157