FreeCAD

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/***************************************************************************
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 *   Copyright (c) 2020 WandererFan <wandererfan@gmail.com>                *
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 *                                                                         *
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 *   This file is part of the FreeCAD CAx development system.              *
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 *                                                                         *
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 *   This library is free software; you can redistribute it and/or         *
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 *   modify it under the terms of the GNU Library General Public           *
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 *   License as published by the Free Software Foundation; either          *
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 *   version 2 of the License, or (at your option) any later version.      *
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 *                                                                         *
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 *   This library  is distributed in the hope that it will be useful,      *
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 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
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 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
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 *   GNU Library General Public License for more details.                  *
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 *                                                                         *
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 *   You should have received a copy of the GNU Library General Public     *
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 *   License along with this library; see the file COPYING.LIB. If not,    *
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 *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
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 *   Suite 330, Boston, MA  02111-1307, USA                                *
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 *                                                                         *
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 ***************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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# include <QGraphicsSceneEvent>
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#endif
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#include <Mod/TechDraw/App/DrawUtil.h>
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#include "QGIGhostHighlight.h"
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#include "PreferencesGui.h"
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#include "Rez.h"
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using namespace TechDrawGui;
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using namespace TechDraw;
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QGIGhostHighlight::QGIGhostHighlight()
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{
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    setInteractive(true);
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    m_dragging = false;
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    //make the ghost very visible
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    QFont f(Preferences::labelFontQString());
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    double fontSize = Preferences::labelFontSizeMM();
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    setFont(f, fontSize);
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    setReference("drag");
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    setStyle(Qt::SolidLine);
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    setColor(prefSelectColor());
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    setWidth(Rez::guiX(1.0));
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    setRadius(10.0);         //placeholder
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}
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QGIGhostHighlight::~QGIGhostHighlight()
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{
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}
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void QGIGhostHighlight::mousePressEvent(QGraphicsSceneMouseEvent * event)
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{
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//    Base::Console().Message("QGIGhostHighlight::mousePress() - %X\n", this);
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    if ( (event->button() == Qt::LeftButton) &&
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        (flags() & QGraphicsItem::ItemIsMovable) ) {
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            m_dragging = true;
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            event->accept();
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    }
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    QGIHighlight::mousePressEvent(event);
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}
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void QGIGhostHighlight::mouseReleaseEvent(QGraphicsSceneMouseEvent * event)
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{
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//    Base::Console().Message("QGIGhostHighlight::mouseRelease() - pos: %s scenePos: %s\n",
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//                                 DrawUtil::formatVector(pos()).c_str(),
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//                                 DrawUtil::formatVector(mapToScene(pos())).c_str());
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    if (m_dragging) {
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        m_dragging = false;
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        Q_EMIT positionChange(scenePos());
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        event->accept();
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    }
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    QGIHighlight::mouseReleaseEvent(event);
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}
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void QGIGhostHighlight::setInteractive(bool state)
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{
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    setFlag(QGraphicsItem::ItemIsSelectable, state);
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    setFlag(QGraphicsItem::ItemIsMovable, state);
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    setFlag(QGraphicsItem::ItemSendsScenePositionChanges, state);
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    setFlag(QGraphicsItem::ItemSendsGeometryChanges, state);
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}
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//radius should scaled, but not Rez::guix()
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void QGIGhostHighlight::setRadius(double r)
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{
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    setBounds(-r, r, r, -r);
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}
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#include <Mod/TechDraw/Gui/moc_QGIGhostHighlight.cpp>
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