Karl Zweimüller / Menu

Library to display menus on TextLCDs. Interaction with functions Up,Down and Select (Buttons or RPG) Based on menu-library from pyeh9

Fork of Menu by Peihsun Yeh

Library to display menus on TextLCDs. Interaction with functions Up,Down and Select (Buttons or RPG) Based on menu-library from pyeh9

Navigator.cpp@1:84d263c8932d, 2013-03-05 (annotated)

Committer:
pyeh9
Date:
Tue Mar 05 20:33:27 2013 +0000
Revision:
1:84d263c8932d
Child:
2:2654dc659298
second version - all necessary files in one folder;

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