mirror of
https://github.com/lucaspalomodevelop/meshlab.git
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104 lines
3.7 KiB
C++
104 lines
3.7 KiB
C++
/****************************************************************************
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* MeshLab o o *
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* An extendible mesh processor o o *
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* _ O _ *
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* Copyright(C) 2005, 2009 \/)\/ *
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* Visual Computing Lab /\/| *
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* ISTI - Italian National Research Council | *
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* \ *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program 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 General Public License (http://www.gnu.org/licenses/gpl.txt) *
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* for more details. *
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* *
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****************************************************************************/
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#ifndef CLONEVIEW_H_
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#define CLONEVIEW_H_
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#include <QtGui>
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class CloneView : public QGraphicsView
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{
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Q_OBJECT
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private :
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QPointF last_pos;
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QPointF start_pos;
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QGraphicsItem * crosshair;
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public :
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QGraphicsItem * scenegroup;
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CloneView(QWidget * parent) : QGraphicsView(parent)
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{
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setDragMode(QGraphicsView::NoDrag); setMouseTracking(false);
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}
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virtual void mousePressEvent(QMouseEvent * event) {
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start_pos = QPointF(event->pos());
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last_pos.setX(event->pos().x()); last_pos.setY(event->pos().y());
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if (event->buttons() == Qt::RightButton)
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emit positionReset();
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}
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virtual void mouseMoveEvent ( QMouseEvent * event)
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{
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if (!(event->buttons() & Qt::LeftButton)) return;
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QGraphicsItem * item = itemAt(event->pos());
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if (item != NULL)
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if (!crosshair->isAncestorOf(item)) item->moveBy(event->pos().x() - last_pos.x(), event->pos().y() - last_pos.y());
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last_pos.setX(event->pos().x()); last_pos.setY(event->pos().y());
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// emit positionChanged(last_pos.x() - start_pos.x(), last_pos.y() - start_pos.y());
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}
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virtual void mouseReleaseEvent ( QMouseEvent *)
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{
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emit positionChanged(last_pos.x() - start_pos.x(), last_pos.y() - start_pos.y());
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}
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virtual void wheelEvent(QWheelEvent *)
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{
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//ignore or move..
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}
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virtual void setScene(QGraphicsScene * scene)
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{
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QGraphicsView::setScene(scene);
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scenegroup = new QGraphicsItemGroup(NULL, scene);
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crosshair = new QGraphicsItemGroup(scenegroup);
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crosshair->setZValue(2);
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QPen pen;
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pen.setWidth(3);
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pen.setColor(QColor(qRgb(255, 255, 255)));
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QGraphicsItem * p = scene->addLine(0, 8, 0, -8, pen);
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p->setParentItem(crosshair);
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QGraphicsItem * c = scene->addLine(8, 0, -8, 0, pen);
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c->setParentItem(p); p = c;
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pen.setWidth(1);
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pen.setColor(QColor(qRgb(0, 0, 0)));
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c = scene->addLine(0, 8, 0, -8, pen);
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c->setParentItem(p); p = c;
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c = scene->addLine(8, 0, -8, 0, pen);
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c->setParentItem(p); p = c;
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}
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signals:
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void positionChanged(double x, double y);
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void positionReset();
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};
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#endif /*CLONEVIEW_H_*/
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