init

Telegram/lib_ui/ui/widgets/menu/menu_toggle.cpp

@@ -0,0 +1,77 @@
+// This file is part of Desktop App Toolkit,
+// a set of libraries for developing nice desktop applications.
+//
+// For license and copyright information please follow this link:
+// https://github.com/desktop-app/legal/blob/master/LEGAL
+//
+#include "ui/widgets/menu/menu_toggle.h"
+
+#include "ui/widgets/checkbox.h"
+
+namespace Ui::Menu {
+
+Toggle::Toggle(
+	not_null<RpWidget*> parent,
+	const style::Menu &st,
+	const QString &text,
+	Fn<void()> &&callback,
+	const style::icon *icon,
+	const style::icon *iconOver)
+: Action(
+	parent,
+	st,
+	CreateAction(parent, text, std::move(callback)),
+	icon,
+	iconOver)
+, _padding(st.itemPadding)
+, _toggleShift(st.itemToggleShift)
+, _itemToggle(st.itemToggle)
+, _itemToggleOver(st.itemToggleOver) {
+	const auto processAction = [=] {
+		if (!action()->isCheckable()) {
+			_toggle.reset();
+			return;
+		}
+		if (_toggle) {
+			_toggle->setChecked(action()->isChecked(), anim::type::normal);
+		} else {
+			_toggle = std::make_unique<ToggleView>(
+				st.itemToggle,
+				action()->isChecked(),
+				[=] { update(); });
+		}
+	};
+	processAction();
+	connect(action(), &QAction::changed, [=] { processAction(); });
+
+	selects(
+	) | rpl::on_next([=](const CallbackData &data) {
+		if (!_toggle) {
+			return;
+		}
+		_toggle->setStyle(data.selected ? _itemToggleOver : _itemToggle);
+	}, lifetime());
+}
+
+Toggle::~Toggle() = default;
+
+void Toggle::paintEvent(QPaintEvent *e) {
+	Action::paintEvent(e);
+	if (_toggle) {
+		auto p = QPainter(this);
+		const auto toggleSize = _toggle->getSize();
+		_toggle->paint(
+			p,
+			width() - _padding.right() - toggleSize.width() + _toggleShift,
+			(contentHeight() - toggleSize.height()) / 2, width());
+	}
+}
+
+void Toggle::finishAnimating() {
+	ItemBase::finishAnimating();
+	if (_toggle) {
+		_toggle->finishAnimating();
+	}
+}
+
+} // namespace Ui::Menu