/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Boost Software License - Version 1.0 - August 17th, 2003
 *
 * Permission is hereby granted, free of charge, to any person or organization
 * obtaining a copy of the software and accompanying documentation covered by
 * this license (the "Software") to use, reproduce, display, distribute,
 * execute, and transmit the Software, and to prepare derivative works of the
 * Software, and to permit third-parties to whom the Software is furnished to
 * do so, all subject to the following:
 *
 * The copyright notices in the Software and this entire statement, including
 * the above license grant, this restriction and the following disclaimer,
 * must be included in all copies of the Software, in whole or in part, and
 * all derivative works of the Software, unless such copies or derivative
 * works are solely in the form of machine-executable object code generated by
 * a source language processor.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
 * SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
 * FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 **********************************************************************/

#include "autoresizemixin.h"
#include <QWidget>
#include <QWindow>
#include <QResizeEvent>
#include <util/gui/geometry.h>

namespace LC
{
namespace Util
{
	AutoResizeMixin::AutoResizeMixin (const QPoint& point, RectGetter_f size, QWidget *view)
	: QObject (view)
	, OrigPoint_ (point)
	, Mover_ ([view] (const QPoint& pos) { view->move (pos); })
	, Rect_ (size)
	{
		view->installEventFilter (this);
		Refit (view->size ());
	}

	AutoResizeMixin::AutoResizeMixin (const QPoint& point, RectGetter_f size, QWindow *window)
	: QObject (window)
	, OrigPoint_ (point)
	, Mover_ ([window] (const QPoint& pos) { window->setPosition (pos); })
	, Rect_ (size)
	{
		window->installEventFilter (this);
		Refit (window->size ());
	}

	bool AutoResizeMixin::eventFilter (QObject*, QEvent *event)
	{
		if (event->type () != QEvent::Resize)
			return false;

		auto re = static_cast<QResizeEvent*> (event);
		Refit (re->size ());
		return false;
	}

	void AutoResizeMixin::Refit (const QSize& size)
	{
		Mover_ (FitRect (OrigPoint_, size, Rect_ (), Util::FitFlag::NoOverlap));
	}
}
}
