File indexing completed on 2024-04-14 03:59:29

 /*
     SPDX-FileCopyrightText: 2008-2010 Stefan Majewsky <majewsky@gmx.net>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "diamond.h"
 
 #include <QGraphicsSceneMouseEvent>
 
 QString colorKey(KDiamond::Color color)
 {
     QString colors[] = {
         QLatin1String("kdiamond-selection"),
         QLatin1String("kdiamond-red"),
         QLatin1String("kdiamond-green"),
         QLatin1String("kdiamond-blue"),
         QLatin1String("kdiamond-yellow"),
         QLatin1String("kdiamond-white"),
         QLatin1String("kdiamond-black"),
         QLatin1String("kdiamond-orange")
     };
     return colors[(color < 0 || color >= KDiamond::ColorsCount) ? 0 : color];
 }
 
 Diamond::Diamond(KDiamond::Color color, KGameGraphicsViewRenderer *renderer, QGraphicsItem *parent)
     : KGameRenderedGraphicsObject(renderer, colorKey(color), parent)
     , m_color(color)
 {
     //selection markers do not react to mouse events; they should also appear behind diamonds
     if (color == KDiamond::Selection) {
         setAcceptedMouseButtons({});
         setZValue(-1);
     } else {
         setAcceptedMouseButtons(Qt::LeftButton);
     }
 }
 
 KDiamond::Color Diamond::color() const
 {
     return m_color;
 }
 
 void Diamond::mousePressEvent(QGraphicsSceneMouseEvent *event)
 {
     m_mouseDown = true;
     m_mouseDownPos = event->pos();
 }
 
 void Diamond::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
 {
     if (m_mouseDown) {
         //check if diamond was dragged onto another one
         const QPointF pos = event->pos();
         const qreal dx = pos.x() - m_mouseDownPos.x(), dy = pos.y() - m_mouseDownPos.y();
         const QSizeF diamondSize = boundingRect().size();
         static const qreal draggingFuzziness = 2.0 / 3.0;
         if (qAbs(dx) > qAbs(dy)) {
             if (qAbs(dx) >= diamondSize.width() * draggingFuzziness) {
                 Q_EMIT dragged(QPoint(dx < 0 ? -1 : 1, 0));
                 m_mouseDown = false; //mouse action has been handled
             }
         } else {
             if (qAbs(dy) >= diamondSize.height() * draggingFuzziness) {
                 Q_EMIT dragged(QPoint(0, dy < 0 ? -1 : 1));
                 m_mouseDown = false;
             }
         }
     }
 }
 
 void Diamond::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
 {
     if (m_mouseDown && boundingRect().contains(event->pos())) {
         Q_EMIT clicked();
         m_mouseDown = false;
     }
 }
 
 #include "moc_diamond.cpp"