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Code Issues Activity Actions

Calculator: Add a Shrinking action

Browse source 
This action allow the user to shrink a number to a finite number of
decimal.
This commit is contained in:
Lucas CHOLLET 2022-01-16 22:45:09 +01:00 • committed by Tim Flynn
parent e3b22c395d
commit 2ff773a6ba
7 changed files with 32 additions and 7 deletions
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6
Userland/Applications/Calculator/CalculatorWidget.cpp
View file

@ -217,6 +217,12 @@ void CalculatorWidget::keydown_event(GUI::KeyEvent& event)
update_display();
}
void CalculatorWidget::shrink(unsigned shrink_threshold)
{
m_keypad.shrink(shrink_threshold);
update_display();
}
unsigned CalculatorWidget::rounding_length() const
{
return m_keypad.rounding_length();

1
Userland/Applications/Calculator/CalculatorWidget.h
View file

@ -22,6 +22,7 @@ public:
String get_entry();
void set_entry(Crypto::BigFraction);
void shrink(unsigned);
unsigned rounding_length() const;
void set_rounding_length(unsigned);

5
Userland/Applications/Calculator/Keypad.cpp
View file

@ -145,3 +145,8 @@ unsigned Keypad::rounding_length() const
{
return m_displayed_fraction_length;
}
void Keypad::shrink(unsigned shrink_threshold)
{
m_internal_value = m_internal_value.rounded(shrink_threshold);
}

1
Userland/Applications/Calculator/Keypad.h
View file

@ -29,6 +29,7 @@ public:
void set_value(Crypto::BigFraction);
void set_to_0();
void shrink(unsigned);
void set_rounding_length(unsigned);
unsigned rounding_length() const;

8
Userland/Applications/Calculator/RoundingDialog.cpp
View file

@ -11,9 +11,9 @@
#include <LibGUI/SpinBox.h>
#include <LibGUI/TextEditor.h>
RoundingDialog::ExecResult RoundingDialog::show(GUI::Window* parent_window, unsigned& rounding_value)
RoundingDialog::ExecResult RoundingDialog::show(GUI::Window* parent_window, StringView title, unsigned& rounding_value)
{
auto dialog = RoundingDialog::construct(parent_window);
auto dialog = RoundingDialog::construct(parent_window, title);
if (parent_window) {
dialog->set_icon(parent_window->icon());
@ -32,12 +32,12 @@ RoundingDialog::ExecResult RoundingDialog::show(GUI::Window* parent_window, unsi
return GUI::Dialog::ExecResult::OK;
}
RoundingDialog::RoundingDialog(GUI::Window* parent_window)
RoundingDialog::RoundingDialog(GUI::Window* parent_window, StringView title)
: Dialog(parent_window)
{
resize(m_dialog_length, m_dialog_height);
set_resizable(false);
set_title("Choose custom rounding");
set_title(title);
auto& main_widget = set_main_widget<GUI::Widget>();

4
Userland/Applications/Calculator/RoundingDialog.h
View file

@ -13,10 +13,10 @@ class RoundingDialog : public GUI::Dialog {
C_OBJECT(RoundingDialog);
public:
static ExecResult show(GUI::Window* parent_window, unsigned& rounding_value);
static ExecResult show(GUI::Window* parent_window, StringView title, unsigned& rounding_value);
private:
RoundingDialog(GUI::Window* parent_window);
RoundingDialog(GUI::Window* parent_window, StringView title);
virtual ~RoundingDialog() override = default;
RefPtr<GUI::SpinBox> m_rounding_spinbox;

14
Userland/Applications/Calculator/main.cpp
View file

@ -92,7 +92,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
auto round_custom = GUI::Action::create_checkable(String::formatted(format, 0), [&](auto& action) {
unsigned custom_rounding_length = widget->rounding_length();
if (RoundingDialog::show(window, custom_rounding_length) == GUI::Dialog::ExecResult::OK) {
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();
@ -102,9 +102,21 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
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();