/*
	Copyright 2006-2020 The QElectroTech Team
	This file is part of QElectroTech.

	QElectroTech is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 2 of the License, or
	(at your option) any later version.

	QElectroTech is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
*/
#include "eseventaddrect.h"

#include "../editorcommands.h"
#include "../elementscene.h"
#include "../graphicspart/partrectangle.h"

#include <QObject>

/**
	@brief ESEventAddRect::ESEventAddRect
	@param scene
*/
ESEventAddRect::ESEventAddRect(ElementScene *scene) :
	ESEventInterface(scene),
	m_rect(nullptr)
{}

/**
	@brief ESEventAddRect::~ESEventAddRect
*/
ESEventAddRect::~ESEventAddRect()
{
	if (m_running || m_abort)
		delete m_rect;
}

/**
	@brief ESEventAddRect::mousePressEvent
	@param event
	@return
*/
bool ESEventAddRect::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
	if (event -> button() == Qt::LeftButton)
	{
		if(!m_running) m_running = true;
		QPointF pos = m_scene->snapToGrid(event -> scenePos());

			//create new rectangle, pos isn't define,
			//so m_rect.pos = 0,0 , that mean event.scenePos is in same coordinate of item
			//we don't need to map point for m_rect
		if (!m_rect)
		{
			m_rect = new PartRectangle(m_editor);
			m_scene -> addItem(m_rect);
			m_rect -> setRect(QRectF(pos, pos));
			return true;
		}

			//Add rectangle to scene
		m_rect  -> setRect(m_rect -> rect().normalized());
		m_scene -> undoStack().push(new AddPartCommand(QObject::tr("Rectangle"), m_scene, m_rect));

			//Set m_rect to nullptr for create new rectangle at next mouse press
		m_rect = nullptr;

		return true;
	}
	return false;
}

/**
	@brief ESEventAddRect::mouseMoveEvent
	@param event
	@return
*/
bool ESEventAddRect::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
	updateHelpCross(event -> scenePos());
	if (!m_rect) return false;

	QRectF rect(m_rect->rect().topLeft(), m_scene->snapToGrid(event -> scenePos()));
	m_rect -> setRect(rect);
	return true;
}

/**
	@brief ESEventAddRect::mouseReleaseEvent
	@param event
	@return
*/
bool ESEventAddRect::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
	if (event -> button() == Qt::RightButton) {
		if (m_rect) {delete m_rect; m_rect = nullptr;}
		else        {m_running = false;}
		return true;
	}
	return false;
}