Change the way to add new element in a diagram.

Drag & drop an element in a diagram and click left to add it, click right to finish


git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@3803 bfdf4180-ca20-0410-9c96-a3a8aa849046

sources/diagramevent/diagrameventinterface.cpp

@@ -0,0 +1,86 @@
+/*
+	Copyright 2006-2015 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 "diagrameventinterface.h"
+#include <QGraphicsSceneMouseEvent>
+#include <QKeyEvent>
+
+
+DiagramEventInterface::DiagramEventInterface(Diagram *diagram) :
+	m_diagram(diagram),
+	m_running(false),
+	m_abort(false)
+{
+}
+
+DiagramEventInterface::~DiagramEventInterface() {};
+
+bool DiagramEventInterface::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) {
+	Q_UNUSED (event);
+	return false;
+}
+
+bool DiagramEventInterface::mousePressEvent(QGraphicsSceneMouseEvent *event) {
+	Q_UNUSED (event);
+	return false;
+}
+
+bool DiagramEventInterface::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
+	Q_UNUSED (event);
+	return false;
+}
+
+bool DiagramEventInterface::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) {
+	Q_UNUSED (event);
+	return false;
+}
+
+bool DiagramEventInterface::wheelEvent(QGraphicsSceneWheelEvent *event) {
+	Q_UNUSED (event);
+	return false;
+}
+
+/**
+ * @brief DiagramEventInterface::keyPressEvent
+ * By default, press escape key abort the curent action
+ * @param event
+ * @return
+ */
+bool DiagramEventInterface::keyPressEvent(QKeyEvent *event) {
+	if (event->key() == Qt::Key_Escape) {
+		m_running = false;
+		m_abort = true;
+		return true;
+	}
+	return false;
+}
+
+bool DiagramEventInterface::KeyReleaseEvent(QKeyEvent *event) {
+	Q_UNUSED (event);
+	return false;
+}
+
+bool DiagramEventInterface::isRunning() const {
+	return m_running;
+}
+
+bool DiagramEventInterface::isFinish() const {
+	return !m_running;
+}
+
+void DiagramEventInterface::init()
+{}