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Telegram/SourceFiles/overview/overview_checkbox.cpp

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+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "overview/overview_checkbox.h"
+
+#include "styles/style_overview.h"
+#include "styles/style_widgets.h"
+
+namespace Overview::Layout {
+
+void Checkbox::paint(
+		QPainter &p,
+		QPoint position,
+		int outerWidth,
+		bool selected,
+		bool selecting) {
+	_check.setDisplayInactive(selecting);
+	_check.setChecked(selected);
+	const auto pression = _pression.value((_active && _pressed) ? 1. : 0.);
+	const auto scale = 1. - (1. - st::overviewCheckPressedSize) * pression;
+	_check.paint(p, position.x(), position.y(), outerWidth, scale);
+}
+
+void Checkbox::setActive(bool active) {
+	_active = active;
+	if (_pressed) {
+		startAnimation();
+	}
+}
+
+void Checkbox::setPressed(bool pressed) {
+	_pressed = pressed;
+	if (_active) {
+		startAnimation();
+	}
+}
+
+void Checkbox::setChecked(bool checked, anim::type animated) {
+	_check.setChecked(checked, animated);
+}
+
+void Checkbox::startAnimation() {
+	const auto showPressed = (_pressed && _active);
+	_pression.start(
+		_updateCallback,
+		showPressed ? 0. : 1.,
+		showPressed ? 1. : 0.,
+		st::overviewCheck.duration);
+}
+
+void Checkbox::finishAnimating() {
+	_pression.stop();
+	_check.finishAnimating();
+}
+
+} // namespace Overview::Layout