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/*
* Copyright (c) 2019-2020, Sergey Bugaev <bugaevc@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "CalculatorWidget.h"
#include "RoundingDialog.h"
#include <LibCore/System.h>
#include <LibCrypto/NumberTheory/ModularFunctions.h>
#include <LibGUI/Action.h>
#include <LibGUI/ActionGroup.h>
#include <LibGUI/Application.h>
#include <LibGUI/Clipboard.h>
#include <LibGUI/Icon.h>
#include <LibGUI/Menu.h>
#include <LibGUI/Menubar.h>
#include <LibGUI/Window.h>
#include <LibGfx/Bitmap.h>
#include <LibMain/Main.h>
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
TRY(Core::System::pledge("stdio recvfd sendfd rpath unix"));
auto app = TRY(GUI::Application::try_create(arguments));
TRY(Core::System::pledge("stdio recvfd sendfd rpath"));
TRY(Core::System::unveil("/res", "r"));
TRY(Core::System::unveil(nullptr, nullptr));
auto app_icon = GUI::Icon::default_icon("app-calculator"sv);
auto window = TRY(GUI::Window::try_create());
window->set_title("Calculator");
window->set_resizable(false);
window->resize(250, 215);
auto widget = TRY(window->try_set_main_widget<CalculatorWidget>());
window->set_icon(app_icon.bitmap_for_size(16));
auto& file_menu = window->add_menu("&File");
file_menu.add_action(GUI::CommonActions::make_quit_action([](auto&) {
GUI::Application::the()->quit();
}));
auto& edit_menu = window->add_menu("&Edit");
edit_menu.add_action(GUI::CommonActions::make_copy_action([&](auto&) {
GUI::Clipboard::the().set_plain_text(widget->get_entry());
}));
edit_menu.add_action(GUI::CommonActions::make_paste_action([&](auto&) {
auto clipboard = GUI::Clipboard::the().fetch_data_and_type();
if (clipboard.mime_type == "text/plain") {
if (!clipboard.data.is_empty()) {
auto const number = StringView(clipboard.data);
widget->set_entry(Crypto::BigFraction(number));
}
}
}));
auto& constants_menu = window->add_menu("&Constants");
auto const power = Crypto::NumberTheory::Power("10"_bigint, "10"_bigint);
constants_menu.add_action(GUI::Action::create("&Pi", TRY(Gfx::Bitmap::try_load_from_file("/res/icons/calculator/pi.png"sv)), [&](auto&) {
widget->set_entry(Crypto::BigFraction { Crypto::SignedBigInteger(31415926535), power });
}));
constants_menu.add_action(GUI::Action::create("&Euler's Number", TRY(Gfx::Bitmap::try_load_from_file("/res/icons/calculator/eulers_number.png"sv)), [&](auto&) {
widget->set_entry(Crypto::BigFraction { Crypto::SignedBigInteger(27182818284), power });
}));
constants_menu.add_action(GUI::Action::create("&Phi", TRY(Gfx::Bitmap::try_load_from_file("/res/icons/calculator/phi.png"sv)), [&](auto&) {
widget->set_entry(Crypto::BigFraction { Crypto::SignedBigInteger(16180339887), power });
}));
auto& round_menu = window->add_menu("&Round");
GUI::ActionGroup preview_actions;
static constexpr auto rounding_modes = Array { 0, 2, 4 };
Optional<unsigned> last_rounding_mode = 1;
for (unsigned i {}; i < rounding_modes.size(); ++i) {
auto round_action = GUI::Action::create_checkable(String::formatted("To &{} digits", rounding_modes[i]),
[&widget, rounding_mode = rounding_modes[i], &last_rounding_mode, i](auto&) {
widget->set_rounding_length(rounding_mode);
last_rounding_mode = i;
});
preview_actions.add_action(*round_action);
round_menu.add_action(*round_action);
}
constexpr auto format { "&Custom - {} ..."sv };
auto round_custom = GUI::Action::create_checkable(String::formatted(format, 0), [&](auto& action) {
unsigned custom_rounding_length = widget->rounding_length();
if (RoundingDialog::show(window, "Choose custom rounding"sv, custom_rounding_length) == GUI::Dialog::ExecResult::OK) {
action.set_text(String::formatted(format, custom_rounding_length));
widget->set_rounding_length(custom_rounding_length);
last_rounding_mode.clear();
} else if (last_rounding_mode.has_value())
round_menu.action_at(last_rounding_mode.value())->activate();
});
widget->set_rounding_custom(round_custom, format);
auto shrink_action = GUI::Action::create("&Shrink...", TRY(Gfx::Bitmap::try_load_from_file("/res/icons/16x16/edit-cut.png"sv)), [&](auto&) {
unsigned shrink_length = widget->rounding_length();
if (RoundingDialog::show(window, "Choose shrinking length"sv, shrink_length) == GUI::Dialog::ExecResult::OK) {
round_custom->set_checked(true);
round_custom->set_text(String::formatted(format, shrink_length));
widget->set_rounding_length(shrink_length);
widget->shrink(shrink_length);
}
});
preview_actions.add_action(*round_custom);
preview_actions.set_exclusive(true);
round_menu.add_action(*round_custom);
round_menu.add_action(*shrink_action);
round_menu.action_at(last_rounding_mode.value())->activate();
auto& help_menu = window->add_menu("&Help");
help_menu.add_action(GUI::CommonActions::make_command_palette_action(window));
help_menu.add_action(GUI::CommonActions::make_about_action("Calculator", app_icon, window));
window->show();
return app->exec();
}
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