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#include "Menu.h"
#include "Toolbox.hpp"
#include <cstring>
Menu::Menu() : menuOptions() {}
/*!
* Prints the title, then an Error/Warning/Sucess message (if set),
* prints all command names as an ordered list (starting from 1),
* waits for user input to select one of those commands (by list number)
* and finally executes the appropriate command's run() function.
*
* After the run() function exists, everything is reprinted.
* The 0 list index is always "Go Back"/"Exit" and it always stops the reprinting loop.
*
* If there are no commands, prints "Menu is empty!".
* If user input doesn't correspond to any command, registers an error message and reprints.
*/
void Menu::navigate() const {
if (menuOptions.get_count() == 0) {
printLine("Menu is empty!");
return;
}
unsigned buffer = 1; // We immedeately read the value of buffer, so this is fine
while (buffer != 0) {
clear();
print("> ");
readLine();
resetOrderedList(0);
if (backExistsApp)
printOrderedListElem("Exit");
else
printOrderedListElem("Go Back");
for (unsigned i = 0; i < menuOptions.get_count(); i++)
printOrderedListElem(menuOptions[i].get_nameInMenu());
_printInputBoxLabel("Execute No [0-");
print(menuOptions.get_count());
print("]: ");
read(buffer);
if (buffer > menuOptions.get_count())
registerError("Invalid menu option!");
else if (buffer > 0)
menuOptions[buffer - 1].run();
}
}
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