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https://github.com/RGBCube/serenity
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Calculator: Add a "Custom" entry to the rounding menu
This entry pop a dialog to ask the user to enter a value. The Calculator will automatically put itself in this mode if you enter a number with more digits in the fractional part than the actual maximum length.
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8 changed files with 157 additions and 10 deletions
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@ -5,6 +5,7 @@
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*/
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#include "CalculatorWidget.h"
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#include "RoundingDialog.h"
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#include <LibCore/System.h>
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#include <LibCrypto/NumberTheory/ModularFunctions.h>
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#include <LibGUI/Action.h>
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@ -51,7 +52,8 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
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auto clipboard = GUI::Clipboard::the().fetch_data_and_type();
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if (clipboard.mime_type == "text/plain") {
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if (!clipboard.data.is_empty()) {
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widget->set_entry(Crypto::BigFraction(StringView(clipboard.data)));
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auto const number = StringView(clipboard.data);
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widget->set_entry(Crypto::BigFraction(number));
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}
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}
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}));
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@ -74,16 +76,37 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
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static constexpr auto rounding_modes = Array { 0, 2, 4 };
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for (auto const rounding_mode : rounding_modes) {
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auto round_action = GUI::Action::create_checkable(String::formatted("To &{} digits", rounding_mode), [&widget, rounding_mode](auto&) {
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widget->set_rounding_length(rounding_mode);
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});
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Optional<unsigned> last_rounding_mode = 1;
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for (unsigned i {}; i < rounding_modes.size(); ++i) {
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auto round_action = GUI::Action::create_checkable(String::formatted("To &{} digits", rounding_modes[i]),
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[&widget, rounding_mode = rounding_modes[i], &last_rounding_mode, i](auto&) {
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widget->set_rounding_length(rounding_mode);
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last_rounding_mode = i;
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});
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preview_actions.add_action(*round_action);
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round_menu.add_action(*round_action);
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}
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constexpr auto format { "&Custom - {} ..."sv };
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auto round_custom = GUI::Action::create_checkable(String::formatted(format, 0), [&](auto& action) {
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unsigned custom_rounding_length = widget->rounding_length();
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if (RoundingDialog::show(window, custom_rounding_length) == GUI::Dialog::ExecResult::OK) {
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action.set_text(String::formatted(format, custom_rounding_length));
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widget->set_rounding_length(custom_rounding_length);
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last_rounding_mode.clear();
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} else if (last_rounding_mode.has_value())
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round_menu.action_at(last_rounding_mode.value())->activate();
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});
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widget->set_rounding_custom(round_custom, format);
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preview_actions.add_action(*round_custom);
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preview_actions.set_exclusive(true);
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round_menu.add_action(*round_custom);
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round_menu.action_at(last_rounding_mode.value())->activate();
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auto& help_menu = window->add_menu("&Help");
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help_menu.add_action(GUI::CommonActions::make_about_action("Calculator", app_icon, window));
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