#include "CalculatorWidget.h" #include #include #include #include CalculatorWidget::CalculatorWidget(GWidget* parent) : GWidget(parent) { set_fill_with_background_color(true); m_entry = new GTextBox(this); m_entry->set_relative_rect(5, 5, 244, 26); m_entry->set_text_alignment(TextAlignment::CenterRight); m_label = GLabel::construct(this); m_label->set_relative_rect(12, 42, 27, 27); m_label->set_foreground_color(Color::NamedColor::Red); m_label->set_frame_shadow(FrameShadow::Sunken); m_label->set_frame_shape(FrameShape::Container); m_label->set_frame_thickness(2); update_display(); for (int i = 0; i < 10; i++) { auto& button = *new GButton(this); int p = i ? i + 2 : 0; int x = 55 + (p % 3) * 39; int y = 177 - (p / 3) * 33; button.move_to(x, y); button.set_foreground_color(Color::NamedColor::Blue); add_button(button, i); } auto& button_mem_add = *new GButton(this); button_mem_add.move_to(9, 177); button_mem_add.set_foreground_color(Color::NamedColor::Red); button_mem_add.set_text("M+"); add_button(button_mem_add, Calculator::Operation::MemAdd); auto& button_mem_save = *new GButton(this); button_mem_save.move_to(9, 144); button_mem_save.set_foreground_color(Color::NamedColor::Red); button_mem_save.set_text("MS"); add_button(button_mem_save, Calculator::Operation::MemSave); auto& button_mem_recall = *new GButton(this); button_mem_recall.move_to(9, 111); button_mem_recall.set_foreground_color(Color::NamedColor::Red); button_mem_recall.set_text("MR"); add_button(button_mem_recall, Calculator::Operation::MemRecall); auto& button_mem_clear = *new GButton(this); button_mem_clear.move_to(9, 78); button_mem_clear.set_foreground_color(Color::NamedColor::Red); button_mem_clear.set_text("MC"); add_button(button_mem_clear, Calculator::Operation::MemClear); auto& button_clear = *new GButton(this); button_clear.set_foreground_color(Color::NamedColor::Red); button_clear.set_text("C"); button_clear.on_click = [this](GButton&) { m_keypad.set_value(0.0); m_calculator.clear_operation(); update_display(); }; add_button(button_clear); button_clear.set_relative_rect(187, 40, 60, 28); auto& button_clear_error = *new GButton(this); button_clear_error.set_foreground_color(Color::NamedColor::Red); button_clear_error.set_text("CE"); button_clear_error.on_click = [this](GButton&) { m_calculator.clear_error(); update_display(); }; add_button(button_clear_error); button_clear_error.set_relative_rect(124, 40, 59, 28); auto& button_backspace = *new GButton(this); button_backspace.set_foreground_color(Color::NamedColor::Red); button_backspace.set_text("Backspace"); button_backspace.on_click = [this](GButton&) { m_keypad.type_backspace(); update_display(); }; add_button(button_backspace); button_backspace.set_relative_rect(55, 40, 65, 28); auto& button_decimal_point = *new GButton(this); button_decimal_point.move_to(133, 177); button_decimal_point.set_foreground_color(Color::NamedColor::Blue); button_decimal_point.set_text("."); button_decimal_point.on_click = [this](GButton&) { m_keypad.type_decimal_point(); update_display(); }; add_button(button_decimal_point); auto& button_toggle_sign = *new GButton(this); button_toggle_sign.move_to(94, 177); button_toggle_sign.set_foreground_color(Color::NamedColor::Blue); button_toggle_sign.set_text("+/-"); add_button(button_toggle_sign, Calculator::Operation::ToggleSign); auto& button_add = *new GButton(this); button_add.move_to(172, 177); button_add.set_foreground_color(Color::NamedColor::Red); button_add.set_text("+"); add_button(button_add, Calculator::Operation::Add); auto& button_subtract = *new GButton(this); button_subtract.move_to(172, 144); button_subtract.set_foreground_color(Color::NamedColor::Red); button_subtract.set_text("-"); add_button(button_subtract, Calculator::Operation::Subtract); auto& button_multiply = *new GButton(this); button_multiply.move_to(172, 111); button_multiply.set_foreground_color(Color::NamedColor::Red); button_multiply.set_text("*"); add_button(button_multiply, Calculator::Operation::Multiply); auto& button_divide = *new GButton(this); button_divide.move_to(172, 78); button_divide.set_foreground_color(Color::NamedColor::Red); button_divide.set_text("/"); add_button(button_divide, Calculator::Operation::Divide); auto& button_sqrt = *new GButton(this); button_sqrt.move_to(211, 78); button_sqrt.set_foreground_color(Color::NamedColor::Blue); button_sqrt.set_text("sqrt"); add_button(button_sqrt, Calculator::Operation::Sqrt); auto& button_inverse = *new GButton(this); button_inverse.move_to(211, 144); button_inverse.set_foreground_color(Color::NamedColor::Blue); button_inverse.set_text("1/x"); add_button(button_inverse, Calculator::Operation::Inverse); auto& button_percent = *new GButton(this); button_percent.move_to(211, 111); button_percent.set_foreground_color(Color::NamedColor::Blue); button_percent.set_text("%"); add_button(button_percent, Calculator::Operation::Percent); auto& button_equals = *new GButton(this); button_equals.move_to(211, 177); button_equals.set_foreground_color(Color::NamedColor::Red); button_equals.set_text("="); button_equals.on_click = [this](GButton&) { double argument = m_keypad.value(); double res = m_calculator.finish_operation(argument); m_keypad.set_value(res); update_display(); }; add_button(button_equals); } CalculatorWidget::~CalculatorWidget() { } void CalculatorWidget::add_button(GButton& button, Calculator::Operation operation) { add_button(button); button.on_click = [this, operation](GButton&) { double argument = m_keypad.value(); double res = m_calculator.begin_operation(operation, argument); m_keypad.set_value(res); update_display(); }; } void CalculatorWidget::add_button(GButton& button, int digit) { add_button(button); button.set_text(String::number(digit)); button.on_click = [this, digit](GButton&) { m_keypad.type_digit(digit); update_display(); }; } void CalculatorWidget::add_button(GButton& button) { button.resize(35, 28); } void CalculatorWidget::update_display() { m_entry->set_text(m_keypad.to_string()); if (m_calculator.has_error()) m_label->set_text("E"); else m_label->set_text(""); }