Display.cpp

00001 #include "mbed.h"
00002 #include "util.h"
00003 #include "Display.h"
00004 
00005 // TODO 3 would also be nice if we did all the printf crap here too
00006 
00007 #define LCD_FMT "%-20s" // used to fill a single line on the LCD screen
00008 
00009 // This is for the Sparkfun module
00010 #define DISPLAY_CLEAR     0x01
00011 #define DISPLAY_SET_POS   0x08
00012 
00013 Display::Display(void): 
00014         lcd(p17, p18, SD_FW),
00015         v(1, 20, 35, 20, 'V'),
00016         //a(11, 40, 15, 'A'),
00017         g1(22, 20, 35, 20, 'G'),
00018         g2(43, 20, 35, 20, 'H')
00019 {
00020   // nothin to do
00021 }
00022 
00023 void Display::init()
00024 {
00025     lcd.baud(115200);
00026     lcd.puts("test\n"); // hopefully force 115200 on powerup
00027     lcd.clear();
00028     wait(0.3);
00029 }
00030 
00031 void Display::status(const char *st)
00032 {
00033     int pad;
00034     char *s = (char *) st;
00035     for (pad=20; pad > 0; pad--) {
00036         if (*s++ == '\0') break;
00037     }
00038     lcd.pos(0,1);
00039     lcd.puts(st);
00040     while (pad--) {
00041         lcd.puts(" ");
00042     }
00043 }
00044 
00045 void Display::menu(const char *itemName)
00046 {
00047     int pad;
00048     char *s = (char *) itemName;
00049     for (pad=20; pad > 0; pad--) {
00050         if (*s++ == '\0') break;
00051     }
00052     lcd.pos(0,0);
00053     lcd.puts("< ");
00054     lcd.puts(itemName);
00055     lcd.puts(" >");
00056     pad -= 4; // account for "< " and " >"
00057     while (pad--) {
00058         lcd.puts(" ");
00059     }
00060 }
00061 
00062 void Display::select(const char *itemName)
00063 {
00064     lcd.pos(0,0);
00065     lcd.puts(">>");
00066     lcd.puts(itemName);
00067 }
00068 
00069 // display gauge at a given position (slot) along the bottom
00070 void Display::gauge(int slot)
00071 {
00072 }
00073 
00074 #define WIDTH 22
00075 
00076 void Display::update(SystemState *state) {
00077     if (state) {
00078         // TODO 2 fix padding/overwrite
00079         lcd.pos(0,3);
00080         lcd.puts("V:");
00081         lcd.puts(cvftos(state->voltage, 1));
00082         lcd.puts(" G:");
00083         lcd.puts(cvftos(state->gpsHDOP, 1));
00084         lcd.puts(" ");
00085         lcd.puts(cvitos(state->gpsSats));
00086 
00087         lcd.pos(0,4);
00088         lcd.puts("H:");
00089         lcd.puts(cvftos(state->estHeading, 1));
00090         lcd.puts(" B:");
00091         lcd.puts(cvftos(state->bearing, 1));
00092         lcd.puts(" ");
00093         lcd.puts(cvftos(state->LABrg, 1));
00094     }
00095 }
00096 
00097  void Display::redraw() { // TODO 3 rename
00098 }
00099 
00100 
00101