rwidgets/graphicsItems/griditem.cpp

0001 /***************************************************************************
0002  *   Copyright (C) 2015 by Renaud Guezennec                                *
0003  *   https://rolisteam.org/contact                   *
0004  *                                                                         *
0005  *   rolisteam is free software; you can redistribute it and/or modify     *
0006  *   it under the terms of the GNU General Public License as published by  *
0007  *   the Free Software Foundation; either version 2 of the License, or     *
0008  *   (at your option) any later version.                                   *
0009  *                                                                         *
0010  *   This program is distributed in the hope that it will be useful,       *
0011  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
0012  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
0013  *   GNU General Public License for more details.                          *
0014  *                                                                         *
0015  *   You should have received a copy of the GNU General Public License     *
0016  *   along with this program; if not, write to the                         *
0017  *   Free Software Foundation, Inc.,                                       *
0018  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
0019  ***************************************************************************/
0020
0021 #include "griditem.h"
0022
0023 #include <QDebug>
0024 #include <QGraphicsScene>
0025 #include <QGraphicsView>
0026 #include <QMenu>
0027 #include <QPainter>
0028 #include <QStyleOptionGraphicsItem>
0029 #include <math.h>
0030
0031 #include "controller/item_controllers/visualitemcontroller.h"
0032 #include "media/mediatype.h"
0033
0034 // constexpr float PI{3.14159265};
0035
0036 /////////////////////////////////
0037 /// Code SightItem
0038 /////////////////////////////////
0039
0040 GridItem::GridItem(vmap::GridController* ctrl) : VisualItem(ctrl), m_gridCtrl(ctrl)
0041 {
0042     setZValue(std::numeric_limits<qreal>::max());
0043     setFlag(QGraphicsItem::ItemUsesExtendedStyleOption);
0044     setAcceptedMouseButtons(Qt::NoButton);
0045     setAcceptHoverEvents(false);
0046     if(m_gridCtrl)
0047         m_ctrl->setLayer(Core::Layer::GRIDLAYER);
0048     setFlags(QGraphicsItem::ItemSendsGeometryChanges);
0049     setFlag(QGraphicsItem::ItemIsSelectable, false);
0050
0051     connect(m_gridCtrl, &vmap::GridController::gridPatternChanged, this, [this]() { update(); });
0052     connect(m_gridCtrl, &vmap::GridController::rectChanged, this, [this]() { update(); });
0053
0054     connect(this, &QGraphicsObject::parentChanged, this,
0055             [this]()
0056             {
0057                 connect(scene(), &QGraphicsScene::sceneRectChanged, m_gridCtrl, &vmap::GridController::setRect);
0058                 m_gridCtrl->setRect(scene()->sceneRect());
0059             });
0060 }
0061
0062 GridItem::~GridItem() {}
0063
0064 void GridItem::setNewEnd(const QPointF &nend)
0065 {
0066     Q_UNUSED(nend);
0067 }
0068
0069 void GridItem::updateItemFlags()
0070 {
0071     VisualItem::updateItemFlags();
0072     setAcceptedMouseButtons(Qt::NoButton);
0073     setFlag(QGraphicsItem::ItemIsMovable, false);
0074 }
0075 QRectF GridItem::boundingRect() const
0076 {
0077     return m_gridCtrl ? m_gridCtrl->rect() : QRectF{};
0078 }
0079
0080 void GridItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
0081 {
0082     Q_UNUSED(option)
0083     Q_UNUSED(widget)
0084     if(!m_gridCtrl->visible())
0085         return;
0086
0087     painter->fillRect(boundingRect(), QBrush(m_gridCtrl->gridPattern()));
0088 }