element editor, add rect is managed by esevent

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@3457 bfdf4180-ca20-0410-9c96-a3a8aa849046

sources/editor/esevent/eseventaddrect.cpp

@@ -0,0 +1,97 @@
+/*
+	Copyright 2006-2014 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 <QObject>
+
+#include "eseventaddrect.h"
+#include "elementscene.h"
+#include "partrectangle.h"
+#include "editorcommands.h"
+
+/**
+ * @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
+		if (!m_rect) {
+			m_rect = new PartRectangle(m_editor, 0, m_scene);
+			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;
+}