Ken Van Hoeylandt
27 lines
616 B
C++
27 lines
616 B
C++
#pragma once
|
|
|
|
#include "tt_app.h"
|
|
|
|
#include <lvgl.h>
|
|
#include <deque>
|
|
#include <Str.h>
|
|
|
|
class Calculator {
|
|
|
|
lv_obj_t* displayLabel;
|
|
lv_obj_t* resultLabel;
|
|
char formulaBuffer[128] = {0}; // Stores the full input expression
|
|
bool newInput = true;
|
|
|
|
static void button_event_cb(lv_event_t* e);
|
|
void handleInput(const char* txt);
|
|
void evaluateExpression();
|
|
double computeFormula();
|
|
static std::deque<Str> infixToRPN(const Str& infix);
|
|
static double evaluateRPN(std::deque<Str> rpnQueue);
|
|
void resetCalculator();
|
|
|
|
public:
|
|
|
|
void onShow(AppHandle context, lv_obj_t* parent);
|
|
}; |