mirror of
https://github.com/qelectrotech/qelectrotech-source-mirror.git
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618683d962
git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@5001 bfdf4180-ca20-0410-9c96-a3a8aa849046
100 lines
2.8 KiB
C++
100 lines
2.8 KiB
C++
/*
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Copyright 2006-2017 The QElectroTech Team
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This file is part of QElectroTech.
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QElectroTech 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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QElectroTech 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 for more details.
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You should have received a copy of the GNU General Public License
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along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qetgraphicshandleritem.h"
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#include <QPainter>
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#include <QDebug>
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/**
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* @brief QetGraphicsHandlerItem::QetGraphicsHandlerItem
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* @param size, the size of the handler
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*/
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QetGraphicsHandlerItem::QetGraphicsHandlerItem(qreal size) :
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m_size(size)
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{}
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/**
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* @brief QetGraphicsHandlerItem::boundingRect
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* @return
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*/
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QRectF QetGraphicsHandlerItem::boundingRect() const
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{
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qreal rect_size = m_size * m_previous_zoom_factor;
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QRectF rect(0-rect_size/2, 0-rect_size/2, rect_size, rect_size);
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rect.adjust(-2, -2, 2, 2);
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return rect;
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}
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/**
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* @brief QetGraphicsHandlerItem::setColor
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* @param color, set the color of the handler
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*/
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void QetGraphicsHandlerItem::setColor(QColor color)
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{
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m_color = color;
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update();
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}
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/**
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* @brief QetGraphicsHandlerItem::paint
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* @param painter
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* @param option
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* @param widget
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*/
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void QetGraphicsHandlerItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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Q_UNUSED(option);
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Q_UNUSED(widget);
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qreal zoom_factor = 1.0/painter->transform().m11();
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if(zoom_factor != m_previous_zoom_factor)
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{
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prepareGeometryChange();
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m_previous_zoom_factor = zoom_factor;
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}
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qreal rect_size = m_size * m_previous_zoom_factor;
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QRectF rect(0-rect_size/2, 0-rect_size/2, rect_size, rect_size);
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painter->save();
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painter->setBrush(QBrush(m_color));
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QPen pen(QBrush(m_color), 2, Qt::SolidLine, Qt::SquareCap, Qt::MiterJoin);
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pen.setCosmetic(true);
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painter->setPen(pen);
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painter->setRenderHint(QPainter::Antialiasing, true);
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painter->drawEllipse(rect);
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painter->restore();
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}
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/**
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* @brief QetGraphicsHandlerItem::handlerForPoint
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* @param points
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* @return A list of handler with pos at point
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*/
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QVector<QetGraphicsHandlerItem *> QetGraphicsHandlerItem::handlerForPoint(const QVector<QPointF> &points, int size)
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{
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QVector <QetGraphicsHandlerItem *> list_;
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for (QPointF point : points)
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{
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QetGraphicsHandlerItem *qghi = new QetGraphicsHandlerItem(size);
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qghi->setPos(point);
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list_ << qghi;
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}
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return list_;
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}
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