Library to display menus on TextLCDs. Interaction with functions Up,Down and Select (Buttons or RPG) Based on menu-library from pyeh9
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Library to display menus on TextLCDs. Interaction with functions Up,Down and Select (Buttons or RPG) Based on menu-library from pyeh9
Navigator.cpp
- Committer:
- charly
- Date:
- 2015-01-01
- Revision:
- 4:67097127da6c
- Parent:
- 3:cfc36b42ae75
- Child:
- 5:91b1bc68290b
File content as of revision 4:67097127da6c:
#include "Navigator.h" Navigator::Navigator(Menu *root, TextLCD_Base *lcd) : activeMenu(root), lcd(lcd) { bottom = root->selections.size(); cursorPos = 0; cursorLine = 1; printMenu(); printCursor(); } void Navigator::printMenu() { lcd->cls(); if(bottom == 1){ // the current Menu only has one selection lcd->printf(" %s", activeMenu->selections[0].selText); } else { if(cursorLine == 2){ // if we're at the bottom lcd->printf(" %s", activeMenu->selections[cursorPos-1].selText); lcd->locate(0,1); lcd->printf(" %s", activeMenu->selections[cursorPos].selText); } else { lcd->printf(" %s", activeMenu->selections[cursorPos].selText); lcd->locate(0,1); lcd->printf(" %s", activeMenu->selections[cursorPos+1].selText); } } } void Navigator::printCursor() { if(activeMenu->selections[cursorPos].childMenu == NULL) printf("No child menu\n"); else printf("child menu: %s\n", activeMenu->selections[cursorPos].childMenu->menuID); lcd->locate(0,0); if(cursorLine == 1){ lcd->putc('>'); lcd->locate(0,1); lcd->putc(' '); } else if(cursorLine == 2){ lcd->putc(' '); lcd->locate(0,1); lcd->putc('>'); } } void Navigator::poll() { // no longer needed } void Navigator::select() { if(activeMenu->selections[cursorPos].fun != NULL){ (activeMenu->selections[cursorPos].fun)(); } if(activeMenu->selections[cursorPos].childMenu != NULL){ activeMenu = activeMenu->selections[cursorPos].childMenu; bottom = activeMenu->selections.size(); cursorPos = 0; cursorLine = 1; printMenu(); printCursor(); } } void Navigator::moveUp() { if(cursorLine == 1){ printMenu(); } else if(cursorLine == 2){ cursorLine = 1; } if(cursorPos != 0){ cursorPos--; printMenu(); } printCursor(); } void Navigator::moveDown() { if(cursorLine == 1){ cursorLine = 2; } else if(cursorLine == 2){ printMenu(); } if(cursorPos != (bottom-1)){ cursorPos++; printMenu(); } printCursor(); }