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Telegram/SourceFiles/layout/abstract_layout_item.h

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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
+*/
+#pragma once
+
+#include "base/runtime_composer.h"
+#include "ui/click_handler.h"
+
+class PaintContextBase {
+public:
+	PaintContextBase(crl::time ms, bool selecting)
+	: ms(ms)
+	, selecting(selecting) {
+	}
+	crl::time ms = 0;
+	bool selecting = false;
+
+};
+
+class AbstractLayoutItem
+	: public RuntimeComposer<AbstractLayoutItem>
+	, public ClickHandlerHost {
+public:
+	AbstractLayoutItem();
+
+	AbstractLayoutItem(const AbstractLayoutItem &other) = delete;
+	AbstractLayoutItem &operator=(
+		const AbstractLayoutItem &other) = delete;
+
+	[[nodiscard]] int maxWidth() const;
+	[[nodiscard]] int minHeight() const;
+	virtual int resizeGetHeight(int width);
+
+	[[nodiscard]] int width() const;
+	[[nodiscard]] int height() const;
+
+	virtual void setPosition(int position);
+	[[nodiscard]] int position() const;
+
+	void setShiftX(int x);
+	void setShiftY(int y);
+	[[nodiscard]] QPoint shift() const;
+
+	[[nodiscard]] bool hasPoint(QPoint point) const;
+
+	virtual ~AbstractLayoutItem();
+
+protected:
+	int _width = 0;
+	int _height = 0;
+	int _maxw = 0;
+	int _minh = 0;
+	int _position = 0; // < 0 means removed from layout
+	int _shiftX = 0;
+	int _shiftY = 0;
+
+};