File indexing completed on 2024-04-21 04:02:02

 /*
     KBlackBox - A simple game inspired by an emacs module
 
     SPDX-FileCopyrightText: 1999-2000 Robert Cimrman <cimrman3@students.zcu.cz>
     SPDX-FileCopyrightText: 2007 Nicolas Roffet <nicolas-kde@roffet.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 
 #include "kbbgraphicsitemray.h"
 
 #include <QGraphicsScene>
 #include <QList>
 #include <QPainterPath>
 #include <QPen>
 
 
 #include "kbbballsonboard.h"
 #include "kbbgamedoc.h"
 #include "kbbthememanager.h"
 
 
 
 //
 // Constructor / Destructor
 //
 
 KBBGraphicsItemRay::KBBGraphicsItemRay(KBBScalableGraphicWidget::itemType itemType, QGraphicsScene* scene, KBBThemeManager* themeManager) : KBBGraphicsItemBorder(0, 1, 1, KBBScalableGraphicWidget::BORDER_SIZE/2), QGraphicsPathItem (nullptr)
 {
     scene->addItem(this);
     QPen pen;
 
     pen.setColor(themeManager->color(itemType));
     pen.setStyle(themeManager->style(itemType));
     pen.setWidthF(themeManager->width(itemType));
     setZValue(themeManager->zValue(itemType));
 
     pen.setJoinStyle(Qt::RoundJoin);
     pen.setCapStyle(Qt::RoundCap);
 
     setPen(pen);
 }
 
 
 
 //
 // Public
 //
 
 void KBBGraphicsItemRay::draw(KBBBallsOnBoard* ballsOnBoard, const int borderPosition)
 {
     const int columns = ballsOnBoard->columns();
     const int rows = ballsOnBoard->rows();
     
     QList<int> points;
     const int oppositeBorderPosition = ballsOnBoard->oppositeBorderPositionWithPoints(borderPosition, points);
     
     QPainterPath path;
     setSize(borderPosition, columns, rows);
     path.moveTo(m_centerX, m_centerY);
 
     const float b = (float) KBBScalableGraphicWidget::BORDER_SIZE;
     const float r = (float) KBBScalableGraphicWidget::RATIO;
     float x;
     float y;
     for (int i=0; i<points.count(); i++) {
         x = b - r/2 + r*((points[i] % columns) + 1);
         y = b - r/2 + r*((points[i] / columns) + 1);
         path.lineTo(x,y);
     }
     
     if (oppositeBorderPosition!=KBBGameDoc::HIT_POSITION) {
         float x1;
         float y1;
         centerCoordinate(oppositeBorderPosition, x1, y1, b/2.);
         path.lineTo(x1,y1);
     }
     
     setPath(path);
 }
 
 
 void KBBGraphicsItemRay::hide()
 {
     setPath(QPainterPath());
 }