Peihsun Yeh / Menu

Library of menu structure

Dependents:   lcd_menu

Navigator.cpp@2:2654dc659298, 2013-03-05 (annotated)

Committer:
pyeh9
Date:
Tue Mar 05 21:24:37 2013 +0000
Revision:
2:2654dc659298
Parent:
1:84d263c8932d 
Second version - with comments

Who changed what in which revision?

UserRevisionLine numberNew contents of line
pyeh9 1:84d263c8932d 1 #include "Navigator.h"
pyeh9 1:84d263c8932d 2
pyeh9 1:84d263c8932d 3 Navigator::Navigator(Menu *root, RPG &rpg, TextLCD *lcd) : activeMenu(root), rpg(rpg), lcd(lcd)
pyeh9 1:84d263c8932d 4 {
pyeh9 1:84d263c8932d 5 bottom = root->selections.size();
pyeh9 1:84d263c8932d 6 cursorPos = 0;
pyeh9 1:84d263c8932d 7 cursorLine = 1;
pyeh9 1:84d263c8932d 8 button = 0;
pyeh9 1:84d263c8932d 9 lastButton = 0;
pyeh9 2:2654dc659298 10
pyeh9 2:2654dc659298 11 printMenu();
pyeh9 2:2654dc659298 12 printCursor();
pyeh9 1:84d263c8932d 13 }
pyeh9 1:84d263c8932d 14
pyeh9 1:84d263c8932d 15 void Navigator::printMenu()
pyeh9 1:84d263c8932d 16 {
pyeh9 1:84d263c8932d 17 lcd->cls();
pyeh9 1:84d263c8932d 18 if(bottom == 1){ // the current Menu only has one selection
pyeh9 1:84d263c8932d 19 lcd->printf("%s\n", activeMenu->selections[0].selText);
pyeh9 1:84d263c8932d 20 } else {
pyeh9 1:84d263c8932d 21 if(cursorLine == 2){ // if we're at the bottom
pyeh9 1:84d263c8932d 22 lcd->printf("%s\n", activeMenu->selections[cursorPos-1].selText);
pyeh9 1:84d263c8932d 23 lcd->printf("%s\n", activeMenu->selections[cursorPos].selText);
pyeh9 1:84d263c8932d 24 } else {
pyeh9 1:84d263c8932d 25 lcd->printf("%s\n", activeMenu->selections[cursorPos].selText);
pyeh9 1:84d263c8932d 26 lcd->printf("%s\n", activeMenu->selections[cursorPos+1].selText);
pyeh9 1:84d263c8932d 27 }
pyeh9 1:84d263c8932d 28 }
pyeh9 1:84d263c8932d 29 }
pyeh9 1:84d263c8932d 30
pyeh9 1:84d263c8932d 31 void Navigator::printCursor()
pyeh9 1:84d263c8932d 32 {
pyeh9 1:84d263c8932d 33 if(activeMenu->selections[cursorPos].childMenu == NULL) printf("No child menu\n");
pyeh9 1:84d263c8932d 34 else printf("child menu: %s\n", activeMenu->selections[cursorPos].childMenu->menuID);
pyeh9 1:84d263c8932d 35
pyeh9 1:84d263c8932d 36 lcd->locate(0,0);
pyeh9 1:84d263c8932d 37 if(cursorLine == 1){
pyeh9 1:84d263c8932d 38 lcd->putc('>');
pyeh9 1:84d263c8932d 39 lcd->locate(0,1);
pyeh9 1:84d263c8932d 40 lcd->putc(' ');
pyeh9 1:84d263c8932d 41 } else if(cursorLine == 2){
pyeh9 1:84d263c8932d 42 lcd->putc(' ');
pyeh9 1:84d263c8932d 43 lcd->locate(0,1);
pyeh9 1:84d263c8932d 44 lcd->putc('>');
pyeh9 1:84d263c8932d 45 }
pyeh9 1:84d263c8932d 46 }
pyeh9 1:84d263c8932d 47
pyeh9 1:84d263c8932d 48 void Navigator::poll()
pyeh9 1:84d263c8932d 49 {
pyeh9 1:84d263c8932d 50 if((direction = rpg.dir())!=0){ //Get Dir
pyeh9 1:84d263c8932d 51 wait(0.2);
pyeh9 1:84d263c8932d 52 if(direction == 1) moveDown();
pyeh9 1:84d263c8932d 53 else if(direction == -1) moveUp();
pyeh9 1:84d263c8932d 54 }
pyeh9 1:84d263c8932d 55
pyeh9 1:84d263c8932d 56 if ((button = rpg.pb()) && !lastButton){ //prevents multiple selections when button is held down
pyeh9 1:84d263c8932d 57 wait(0.2);
pyeh9 1:84d263c8932d 58 if(activeMenu->selections[cursorPos].fun != NULL){
pyeh9 1:84d263c8932d 59 (activeMenu->selections[cursorPos].fun)();
pyeh9 1:84d263c8932d 60 }
pyeh9 1:84d263c8932d 61 if(activeMenu->selections[cursorPos].childMenu != NULL){
pyeh9 1:84d263c8932d 62 activeMenu = activeMenu->selections[cursorPos].childMenu;
pyeh9 1:84d263c8932d 63 bottom = activeMenu->selections.size();
pyeh9 1:84d263c8932d 64 cursorPos = 0;
pyeh9 1:84d263c8932d 65 cursorLine = 1;
pyeh9 1:84d263c8932d 66 printMenu();
pyeh9 1:84d263c8932d 67 printCursor();
pyeh9 1:84d263c8932d 68 }
pyeh9 1:84d263c8932d 69 }
pyeh9 1:84d263c8932d 70 lastButton = button;
pyeh9 1:84d263c8932d 71 }
pyeh9 1:84d263c8932d 72
pyeh9 1:84d263c8932d 73 void Navigator::moveUp()
pyeh9 1:84d263c8932d 74 {
pyeh9 1:84d263c8932d 75 if(cursorLine == 1){
pyeh9 1:84d263c8932d 76 printMenu();
pyeh9 1:84d263c8932d 77 } else if(cursorLine == 2){
pyeh9 1:84d263c8932d 78 cursorLine = 1;
pyeh9 1:84d263c8932d 79 }
pyeh9 1:84d263c8932d 80
pyeh9 1:84d263c8932d 81 if(cursorPos != 0){
pyeh9 1:84d263c8932d 82 cursorPos--;
pyeh9 1:84d263c8932d 83 printMenu();
pyeh9 1:84d263c8932d 84 }
pyeh9 1:84d263c8932d 85 printCursor();
pyeh9 1:84d263c8932d 86 }
pyeh9 1:84d263c8932d 87
pyeh9 1:84d263c8932d 88 void Navigator::moveDown()
pyeh9 1:84d263c8932d 89 {
pyeh9 1:84d263c8932d 90 if(cursorLine == 1){
pyeh9 1:84d263c8932d 91 cursorLine = 2;
pyeh9 1:84d263c8932d 92 } else if(cursorLine == 2){
pyeh9 1:84d263c8932d 93 printMenu();
pyeh9 1:84d263c8932d 94 }
pyeh9 1:84d263c8932d 95
pyeh9 1:84d263c8932d 96 if(cursorPos != (bottom-1)){
pyeh9 1:84d263c8932d 97 cursorPos++;
pyeh9 1:84d263c8932d 98 printMenu();
pyeh9 1:84d263c8932d 99 }
pyeh9 1:84d263c8932d 100 printCursor();
pyeh9 1:84d263c8932d 101 }