225 lines
8.9 KiB
C++
225 lines
8.9 KiB
C++
/***************************************************************************
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* Copyright (c) 2012-2013 Luke Parry <l.parry@warwick.ac.uk> *
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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 <QAction>
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# include <QContextMenuEvent>
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# include <QGraphicsScene>
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# include <QGraphicsSceneMouseEvent>
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# include <QList>
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# include <QMenu>
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# include <QMessageBox>
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# include <QMouseEvent>
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# include <QPainter>
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# include <strstream>
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#endif
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#include <App/Document.h>
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#include <Base/Console.h>
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#include <Gui/Selection.h>
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#include <Gui/Command.h>
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#include <Mod/TechDraw/App/DrawProjGroupItem.h>
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#include <Mod/TechDraw/App/DrawProjGroup.h>
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#include "QGIProjGroup.h"
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using namespace TechDrawGui;
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QGIProjGroup::QGIProjGroup()
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{
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origin = new QGraphicsItemGroup();
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origin->setParentItem(this);
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// In place to ensure correct drawing and bounding box calculations
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m_backgroundItem = new QGraphicsRectItem();
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m_backgroundItem->setPen(QPen(QColor(Qt::black)));
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//addToGroup(m_backgroundItem);
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setFlag(ItemIsSelectable, false);
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setFlag(ItemIsMovable, true);
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setFiltersChildEvents(true);
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borderVisible = false;
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}
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TechDraw::DrawProjGroup * QGIProjGroup::getDrawView(void) const
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{
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App::DocumentObject *obj = getViewObject();
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return dynamic_cast<TechDraw::DrawProjGroup *>(obj);
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}
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bool QGIProjGroup::sceneEventFilter(QGraphicsItem* watched, QEvent *event)
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{
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// i want to handle events before the child item that would ordinarily receive them
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if(event->type() == QEvent::GraphicsSceneMousePress ||
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event->type() == QEvent::GraphicsSceneMouseMove ||
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event->type() == QEvent::GraphicsSceneMouseRelease) {
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QGIView *qAnchor = getAnchorQItem();
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if(qAnchor && watched == qAnchor) {
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QGraphicsSceneMouseEvent *mEvent = dynamic_cast<QGraphicsSceneMouseEvent*>(event);
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switch(event->type()) {
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case QEvent::GraphicsSceneMousePress:
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// TODO - Perhaps just pass the mouse event on to the anchor somehow?
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if (scene()) {
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scene()->clearSelection();
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qAnchor->setSelected(true);
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}
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mousePressEvent(mEvent);
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break;
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case QEvent::GraphicsSceneMouseMove:
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mouseMoveEvent(mEvent);
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break;
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case QEvent::GraphicsSceneMouseRelease:
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mouseReleaseEvent(mEvent);
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break;
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default:
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break;
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}
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return true;
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}
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}
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return false;
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}
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QVariant QGIProjGroup::itemChange(GraphicsItemChange change, const QVariant &value)
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{
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if(change == ItemChildAddedChange && scene()) {
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QGraphicsItem*childItem = value.value<QGraphicsItem*>();
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QGIView* gView = dynamic_cast<QGIView *>(childItem);
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if(gView) {
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TechDraw::DrawView *fView = gView->getViewObject();
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if(fView->getTypeId().isDerivedFrom(TechDraw::DrawProjGroupItem::getClassTypeId())) {
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TechDraw::DrawProjGroupItem *projItemPtr = static_cast<TechDraw::DrawProjGroupItem *>(fView);
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QString type = QString::fromAscii(projItemPtr->Type.getValueAsString());
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if (type == QString::fromAscii("Front")) {
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gView->setLocked(true);
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installSceneEventFilter(gView);
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App::DocumentObject *docObj = getViewObject();
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TechDraw::DrawProjGroup *projectionGroup = dynamic_cast<TechDraw::DrawProjGroup *>(docObj);
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projectionGroup->Anchor.setValue(fView);
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updateView();
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} else if ( type == QString::fromAscii("Top") ||
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type == QString::fromAscii("Bottom")) {
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gView->alignTo(origin, QString::fromAscii("Vertical"));
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} else if ( type == QString::fromAscii("Left") ||
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type == QString::fromAscii("Right") ||
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type == QString::fromAscii("Rear") ) {
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gView->alignTo(origin, QString::fromAscii("Horizontal"));
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} else if ( type == QString::fromAscii("FrontTopRight") ||
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type == QString::fromAscii("FrontBottomLeft") ) {
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gView->alignTo(origin, QString::fromAscii("45slash"));
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} else if ( type == QString::fromAscii("FrontTopLeft") ||
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type == QString::fromAscii("FrontBottomRight") ) {
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gView->alignTo(origin, QString::fromAscii("45backslash"));
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}
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}
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}
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}
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return QGIView::itemChange(change, value);
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}
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void QGIProjGroup::mousePressEvent(QGraphicsSceneMouseEvent * event)
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{
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QGIView *qAnchor = getAnchorQItem();
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if(qAnchor) {
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QPointF transPos = qAnchor->mapFromScene(event->scenePos());
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if(qAnchor->shape().contains(transPos)) {
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//QGIViewCollection::mousePressEvent(event);
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mousePos = event->screenPos();
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}
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}
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event->accept();
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}
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void QGIProjGroup::mouseMoveEvent(QGraphicsSceneMouseEvent * event)
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{
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QGIView *qAnchor = getAnchorQItem();
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if(scene() && qAnchor && (qAnchor == scene()->mouseGrabberItem())) {
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if((mousePos - event->screenPos()).manhattanLength() > 5) { //if the mouse has moved more than 5, process the mouse event
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QGIViewCollection::mouseMoveEvent(event);
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}
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}
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event->accept();
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}
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void QGIProjGroup::mouseReleaseEvent(QGraphicsSceneMouseEvent * event)
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{
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if(scene()) {
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QGIView *qAnchor = getAnchorQItem();
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if((mousePos - event->screenPos()).manhattanLength() < 5) {
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if(qAnchor && qAnchor->shape().contains(event->pos())) {
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qAnchor->mouseReleaseEvent(event);
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}
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} else if(scene() && qAnchor && (qAnchor == scene()->mouseGrabberItem())) {
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// End of Drag
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Gui::Command::openCommand("Drag Projection Group");
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//TODO: See if these commands actually handle the horizontal/vertical constraints properly...
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Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.X = %f",
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getViewObject()->getNameInDocument(), x());
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Gui::Command::doCommand(Gui::Command::Doc,"App.ActiveDocument.%s.Y = %f",
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getViewObject()->getNameInDocument(), getY());// inverts Y
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Gui::Command::commitCommand();
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//Gui::Command::updateActive();
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}
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}
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QGIViewCollection::mouseReleaseEvent(event);
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}
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QGIView * QGIProjGroup::getAnchorQItem() const
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{
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// Get the currently assigned anchor view
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App::DocumentObject *anchorObj = getDrawView()->Anchor.getValue();
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TechDraw::DrawView *anchorView = dynamic_cast<TechDraw::DrawView *>(anchorObj);
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// Locate the anchor view's qgraphicsitemview
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QList<QGraphicsItem*> list = childItems();
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for (QList<QGraphicsItem*>::iterator it = list.begin(); it != list.end(); ++it) {
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QGIView *view = dynamic_cast<QGIView *>(*it);
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if(view && strcmp(view->getViewName(), anchorView->getNameInDocument()) == 0) {
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return view;
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}
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}
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return 0;
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}
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void QGIProjGroup::updateView(bool update)
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{
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m_backgroundItem->setRect(boundingRect());
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return QGIViewCollection::updateView(update);
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}
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void QGIProjGroup::drawBorder()
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{
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//QGIProjGroup does not have a border!
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// Base::Console().Message("TRACE - QGIProjGroup::drawBorder - doing nothing!!\n");
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}
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