diff options
Diffstat (limited to 'Applications/Calculator/CalculatorWidget.cpp')
| -rw-r--r-- | Applications/Calculator/CalculatorWidget.cpp | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/Applications/Calculator/CalculatorWidget.cpp b/Applications/Calculator/CalculatorWidget.cpp new file mode 100644 index 0000000000..38070cbe07 --- /dev/null +++ b/Applications/Calculator/CalculatorWidget.cpp @@ -0,0 +1,198 @@ +#include "CalculatorWidget.h" +#include <AK/Assertions.h> +#include <LibGUI/GButton.h> +#include <LibGUI/GLabel.h> +#include <LibGUI/GTextBox.h> + +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 = new GLabel(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(""); +} |