142 lines
4.3 KiB
C++
142 lines
4.3 KiB
C++
/***************************************************************************
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* Copyright (c) 2013 Luke Parry <l.parry@warwick.ac.uk> *
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* 2014 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 <cmath>
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#include <QGraphicsItem>
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#include <QGraphicsScene>
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#include <QGraphicsSceneHoverEvent>
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#include <QMenu>
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#include <QMouseEvent>
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#include <QString>
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#include <sstream>
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#include <QRectF>
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#endif
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//#include <qmath.h>
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#include <App/Application.h>
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#include <App/Material.h>
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#include <Base/Console.h>
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#include <Base/Parameter.h>
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#include <Mod/TechDraw/App/DrawViewSymbol.h>
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#include "QGCustomSvg.h"
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#include "QGIViewSymbol.h"
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using namespace TechDrawGui;
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QGIViewSymbol::QGIViewSymbol()
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{
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setHandlesChildEvents(false);
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setCacheMode(QGraphicsItem::NoCache);
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setAcceptHoverEvents(true);
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setFlag(QGraphicsItem::ItemIsMovable, true);
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setFlag(QGraphicsItem::ItemIsSelectable, true);
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setFlag(QGraphicsItem::ItemSendsGeometryChanges, true);
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m_svgItem = new QGCustomSvg();
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addToGroup(m_svgItem);
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m_svgItem->setPos(0.,0.);
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}
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QGIViewSymbol::~QGIViewSymbol()
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{
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// m_svgItem belongs to this group and will be deleted by Qt
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}
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QVariant QGIViewSymbol::itemChange(GraphicsItemChange change, const QVariant &value)
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{
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return QGIView::itemChange(change, value);
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}
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void QGIViewSymbol::setViewSymbolFeature(TechDraw::DrawViewSymbol *obj)
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{
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// called from QGVPage. (once)
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setViewFeature(static_cast<TechDraw::DrawView *>(obj));
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}
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void QGIViewSymbol::updateView(bool update)
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{
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auto viewSymbol( dynamic_cast<TechDraw::DrawViewSymbol *>(getViewObject()) );
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if( viewSymbol == nullptr ) {
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return;
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}
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if (update ||
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viewSymbol->isTouched() ||
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viewSymbol->Symbol.isTouched()) {
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draw();
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}
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if (viewSymbol->Scale.isTouched()) {
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draw();
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}
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QGIView::updateView(update);
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}
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void QGIViewSymbol::draw()
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{
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if (!isVisible()) {
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return;
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}
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drawSvg();
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if (borderVisible) {
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drawBorder();
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}
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}
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void QGIViewSymbol::drawSvg()
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{
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auto viewSymbol( dynamic_cast<TechDraw::DrawViewSymbol *>(getViewObject()) );
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if( viewSymbol == nullptr ) {
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return;
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}
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//note: svg's are overscaled by (72 pixels(pts actually) /in)*(1 in/25.4 mm) = 2.834645669 (could be 96/25.4(CSS)? 110/25.4?)
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//due to 1 sceneUnit (1mm) = 1 pixel for some QtSvg functions
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m_svgItem->setScale(viewSymbol->Scale.getValue());
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QByteArray qba(viewSymbol->Symbol.getValue(),strlen(viewSymbol->Symbol.getValue()));
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symbolToSvg(qba);
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}
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void QGIViewSymbol::symbolToSvg(QByteArray qba)
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{
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if (qba.isEmpty()) {
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return;
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}
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prepareGeometryChange();
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if (!m_svgItem->load(&qba)) {
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Base::Console().Error("Error - Could not load Symbol into SVG renderer for %s\n", getViewObject()->getNameInDocument());
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}
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m_svgItem->setPos(0.,0.);
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}
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