File indexing completed on 2022-11-23 10:43:25

0001 /*
0002     SPDX-FileCopyrightText: 2006, 2007 Nicolas Roffet <nicolas-kde@roffet.com>
0003 
0004     SPDX-License-Identifier: GPL-2.0-or-later
0005 */
0006 
0007 #include "kbblevelconfigurationpreview.h"
0008 
0009 #include "kbbgraphicsitem.h"
0010 #include "kbbgraphicsitemblackbox.h"
0011 #include "kbbgraphicsitemset.h"
0012 #include "kbbscalablegraphicwidget.h"
0013 #include "kbbthememanager.h"
0014 // Qt
0015 #include <QRandomGenerator>
0016 
0017 
0018 KBBLevelConfigurationPreview::KBBLevelConfigurationPreview(QWidget *parent, KBBThemeManager* themeManager) : QGraphicsView(parent)
0019 {
0020     setFrameStyle(QFrame::NoFrame);
0021     setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
0022     setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
0023     setScene(new QGraphicsScene(0, 0, 2*KBBScalableGraphicWidget::BORDER_SIZE, 2*KBBScalableGraphicWidget::BORDER_SIZE, this));
0024     m_blackbox = new KBBGraphicsItemBlackBox(this, scene(), themeManager, true);
0025     m_themeManager = themeManager;
0026 }
0027 
0028 
0029 void KBBLevelConfigurationPreview::preview(int balls, int columns, int rows)
0030 {
0031     m_blackbox->setSize(columns, rows);
0032     scene()->setSceneRect(0, 0, columns*KBBScalableGraphicWidget::RATIO + 2*KBBScalableGraphicWidget::BORDER_SIZE, rows*KBBScalableGraphicWidget::RATIO + 2*KBBScalableGraphicWidget::BORDER_SIZE);
0033 
0034     // Show balls on the black box
0035     while (m_balls.count()>0) {
0036         delete m_balls.last();
0037         m_balls.removeLast();
0038     }
0039     QList<int> ballPos;
0040     QRandomGenerator random(QRandomGenerator::global()->generate());
0041     int boxPos;
0042     KBBGraphicsItem* item;
0043     for (int i=0;i<balls;i++) {
0044         do {
0045             boxPos = random.bounded(columns*rows);
0046         } while (ballPos.contains(boxPos));
0047         item = new KBBGraphicsItem(KBBScalableGraphicWidget::playerBall, scene(), m_themeManager);
0048         item->setPos(KBBScalableGraphicWidget::BORDER_SIZE + KBBScalableGraphicWidget::RATIO*(boxPos % columns), KBBScalableGraphicWidget::BORDER_SIZE + KBBScalableGraphicWidget::RATIO*(boxPos / columns));
0049         ballPos.append(boxPos);
0050         m_balls.append(item);
0051     }
0052 
0053     resizeEvent(nullptr);
0054 }
0055 
0056 
0057 void KBBLevelConfigurationPreview::drawBackground(QPainter* painter, const QRectF&)
0058 {
0059     QRectF rectBackground;
0060 
0061     // TODO: This is duplication of code from the class KBBScalableGraphicWidget. Try to fix this.
0062     const qreal sW = scene()->width();
0063     const qreal sH = scene()->height();
0064     const qreal wW = width();
0065     const qreal wH = height();
0066     const qreal offset = (sH+sW)/100 ;
0067     if (sH*wW > sW*wH) {
0068         // The widget is larger than the scene
0069         qreal w =  wW*sH/wH;
0070         rectBackground.setRect((sW-w)/2-offset, -offset, w + 2*offset, sH + 2*offset);
0071     } else {
0072         // The scene is larger than the widget (or as large)
0073         qreal h =  wH*sW/wW;
0074         rectBackground.setRect(-offset, (sH-h)/2-offset, sW + 2*offset, h + 2*offset);
0075     }
0076 
0077     m_themeManager->svgRenderer()->render(painter, m_themeManager->elementId(KBBScalableGraphicWidget::background), rectBackground);
0078 }
0079 
0080 
0081 void KBBLevelConfigurationPreview::resizeEvent( QResizeEvent* )
0082 {
0083     fitInView(0.5*KBBScalableGraphicWidget::BORDER_SIZE, 0.5*KBBScalableGraphicWidget::BORDER_SIZE, scene()->width() - 1.5*KBBScalableGraphicWidget::BORDER_SIZE, scene()->height() - 1.5*KBBScalableGraphicWidget::BORDER_SIZE, Qt::KeepAspectRatio);
0084 }
0085 
0086 
0087