init

Telegram/SourceFiles/window/window_top_bar_wrap.h

@@ -0,0 +1,63 @@
+/*
+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
+*/
+#pragma once
+
+#include "ui/wrap/slide_wrap.h"
+
+namespace Window {
+
+template <typename Inner>
+class TopBarWrapWidget : public Ui::SlideWrap<Inner> {
+	using Parent = Ui::SlideWrap<Inner>;
+
+public:
+	TopBarWrapWidget(
+		QWidget *parent,
+		object_ptr<Inner> inner,
+		rpl::producer<bool> oneColumnValue)
+	: Parent(parent, std::move(inner)) {
+		this->sizeValue(
+		) | rpl::on_next([=](const QSize &size) {
+			updateShadowGeometry(size);
+		}, this->lifetime());
+
+		std::move(
+			oneColumnValue
+		) | rpl::on_next([=](bool oneColumn) {
+			_isOneColumn = oneColumn;
+		}, this->lifetime());
+	}
+
+	void updateAdaptiveLayout() {
+		updateShadowGeometry(this->size());
+	}
+	void showShadow() {
+		this->entity()->showShadow();
+	}
+	void hideShadow() {
+		this->entity()->hideShadow();
+	}
+	int contentHeight() const {
+		return qMax(this->height() - st::lineWidth, 0);
+	}
+
+private:
+	void updateShadowGeometry(const QSize &size) {
+		const auto skip = _isOneColumn ? 0 : st::lineWidth;
+		this->entity()->setShadowGeometryToLeft(
+			skip,
+			size.height() - st::lineWidth,
+			size.width() - skip,
+			st::lineWidth);
+	}
+
+	bool _isOneColumn = false;
+
+};
+
+} // namespace Window