main.cpp

00001 #include "mbed.h"
00002 #include "TextLCD.h"
00003 #include "RPG.h"
00004 #include "Selection.h"
00005 #include "Menu.h"
00006 #include "Navigator.h"
00007 #include <vector>
00008 #include <string>
00009 
00010 DigitalOut led1(LED1), led2(LED2), led3(LED3), led4(LED4);
00011 TextLCD lcd(p15, p16, p17, p18, p19, p20); // rs, e, d4-d7
00012 RPG rpg(p21,p22,p23); 
00013 
00014 using namespace std;
00015 
00016 // some functions to tie to selections
00017 void toggleLED1() { led1 = !led1; }
00018 void toggleLED2() { led2 = !led2; }
00019 void toggleLED3() { led3 = !led3; }
00020 void toggleLED4() { led4 = !led4; }
00021 void resetLED()
00022 {
00023     led1 = 0;
00024     led2 = 0;
00025     led3 = 0;
00026     led4 = 0;
00027 }
00028 
00029 int main() {
00030     // In using this library, the user declares "Menus", which are essentially arrays of "Selections".
00031     // Selections describe each individual selectable item. 
00032     // Selections can be tied to functions. Functions must output void and take in no arguments.
00033     // Selections can also have references to child menus.
00034     
00035     // It makes sense to declare a root menu first, but you don't have to. 
00036     // Menus should have an identifier (the argument in constructor). 
00037     Menu rootMenu("root"); 
00038     
00039     // Selections are added to menus through the Menu's "add" method.
00040     // If a function is to be executed when the RPG is depressed, make a REFERENCE to it. Otherwise null.
00041     // The second argument is its position - the will be deprecated soon.
00042     // The last is the text to display. *INCLUDE A SPACE IN THE BEGINNING, this is where the cursor goes. 
00043     // *This means the text is limited to 14 characters (not counting the space) with this display. 
00044     // **It is 14 not 15 for reasons pertaining to the implementation of the TextLCD library. 
00045     Menu ledMenu("LED menu"); 
00046     ledMenu.add(Selection(&toggleLED1, 0, NULL, " Toggle LED1")); // The function argument of selection can be added directly
00047     ledMenu.add(Selection(NULL, 1, NULL, " Toggle LED2"));        // It can also be set to NULL temporarily and changed later.
00048     ledMenu.selections[1].fun = &toggleLED2;                      // Useful for when functions are methods in other classes.
00049     ledMenu.add(Selection(&toggleLED3, 2, NULL, " Toggle LED3"));
00050     ledMenu.add(Selection(&toggleLED4, 3, NULL, " Toggle LED4"));
00051     ledMenu.add(Selection(&resetLED, 4, &rootMenu, " Go back"));  // always add a Selection at the end to point to the parent
00052     
00053     Menu aboutMenu("About Menu"); // about menu crediting us :)
00054     aboutMenu.add(Selection(NULL, 0, NULL, " Authors:"));
00055     aboutMenu.add(Selection(NULL, 1, NULL, " Ben Y & Tony T"));
00056     aboutMenu.add(Selection(NULL, 2, NULL, " ECE4180"));
00057     aboutMenu.add(Selection(NULL, 3, &rootMenu, " Go back"));
00058     
00059     // Selections to the root menu should be added last
00060     rootMenu.add(Selection(NULL, 0, &ledMenu, " LED MENU"));
00061     rootMenu.add(Selection(NULL, 1, NULL, " Dummy menu 1"));  // a dummy menu, doesn't do anything
00062     rootMenu.add(Selection(NULL, 2, &aboutMenu, " About menu"));   
00063     
00064     // Here is the heart of the system: the navigator. 
00065     // The navigator takes in a reference to the root, an interface, and a reference to an lcd
00066     Navigator navigator(&rootMenu, rpg, &lcd);
00067     
00068     while(1){
00069         navigator.poll(); // In a loop, call navigator's poll method to determine if the user is interacting with the rpg. 
00070     }
00071 }