File indexing completed on 2024-04-21 04:01:59

 /*
     This file is part of the KDE project "KAtomic"
 
     SPDX-FileCopyrightText: 2006 Dmitry Suzdalev <dimsuz@gmail.com>
     SPDX-FileCopyrightText: 2007 Carsten Niehaus <cniehaus@kde.org>
     SPDX-FileCopyrightText: 2010 Brian Croom <brian.s.croom@gmail.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "fielditem.h"
 
 #include "molecule.h"
 
 #include <QApplication>
 #include <QPainter>
 #include <QTimeLine>
 
 FieldItem::FieldItem( KGameRenderer* renderer, const QString& spriteKey, QGraphicsScene* scene )
     : KGameRenderedItem( renderer, spriteKey ), m_fieldX(0), m_fieldY(0)
 {
     if( scene )
         scene->addItem( this );
     setShapeMode( BoundingRectShape );
 }
 
 
 static const char* arrow_spriteKeys[] = {"arrow_Up", "arrow_Down", "arrow_Left", "arrow_Right"};
 
 ArrowFieldItem::ArrowFieldItem( KGameRenderer* renderer, PlayField::Direction dir, QGraphicsScene* scene )
     : FieldItem( renderer, QLatin1String(arrow_spriteKeys[dir]), scene )
 {
     setOpacity(0.0); //start invisible
     m_timeLine = new QTimeLine(200);
     m_timeLine->setFrameRange( 0, 30 );
     connect(m_timeLine, &QTimeLine::valueChanged, this, &ArrowFieldItem::setOpacity);
 }
 
 ArrowFieldItem::~ArrowFieldItem()
 {
     delete m_timeLine;
 }
 
 void ArrowFieldItem::setOpacity( qreal opacity )
 {
     //NOTE: This method is only there because QGI::setOpacity is not a slot.
     QGraphicsItem::setOpacity(opacity);
 }
 
 QVariant ArrowFieldItem::itemChange( GraphicsItemChange change, const QVariant& value )
 {
     if(change == ItemVisibleChange)
     {
         if(value.toBool())
         {
             m_timeLine->stop();
             m_timeLine->setCurrentTime(0);
             m_timeLine->start();
         }
     }
     return value;
 }
 
 
 
 AtomFieldItem::AtomFieldItem( KGameRenderer* renderer, atom at, QGraphicsScene* scene )
     : FieldItem(renderer, s_names.value(at.obj), scene), m_atomNum(-1)
 {
     if(s_names.empty())
     {
         fillNameHashes();
         setSpriteKey(s_names.value(at.obj)); // It wasn't yet filled in when the constructor was called
     }
 
     // create the bonds as child items
     for (int c = 0; c < MAX_CONNS_PER_ATOM; c++)
     {
         char conn = at.conn[c];
         if (!conn)
             break;
 
         KGameRenderedItem* bond = new KGameRenderedItem(renderer, s_bondNames.value(conn), this);
         bond->setFlag(QGraphicsItem::ItemStacksBehindParent);
     }
 }
 
 void AtomFieldItem::setRenderSize(const QSize& renderSize)
 {
     KGameRenderedItem::setRenderSize(renderSize);
 
     const QList<QGraphicsItem*> bonds = childItems();
     for (QGraphicsItem* item : bonds)
     {
         dynamic_cast<KGameRenderedItem*>(item)->setRenderSize(renderSize);
     }
 }
 
 QHash<char, QString> AtomFieldItem::s_names;
 QHash<char, QString> AtomFieldItem::s_bondNames;
 
 void AtomFieldItem::fillNameHashes()
 {
     s_names['1'] = QStringLiteral("atom_H");
     s_names['2'] = QStringLiteral("atom_C");
     s_names['3'] = QStringLiteral("atom_O");
     s_names['4'] = QStringLiteral("atom_N");
     s_names['5'] = QStringLiteral("atom_S");
     s_names['6'] = QStringLiteral("atom_F");
     s_names['7'] = QStringLiteral("atom_Cl");
     s_names['8'] = QStringLiteral("atom_Br");
     s_names['9'] = QStringLiteral("atom_P");
     s_names['0'] = QStringLiteral("atom_J");
     s_names['o'] = QStringLiteral("atom_Crystal");
     s_names['A'] = QStringLiteral("connector_Hor");
     s_names['B'] = QStringLiteral("connector_Slash");
     s_names['C'] = QStringLiteral("connector_Ver");
     s_names['D'] = QStringLiteral("connector_Backslash");
     s_names['#'] = QStringLiteral("wall");
     s_names['<'] = QStringLiteral("arrow_Left");
     s_names['>'] = QStringLiteral("arrow_Right");
     s_names['^'] = QStringLiteral("arrow_Up");
     s_names['_'] = QStringLiteral("arrow_Down");
     s_names['E'] = QStringLiteral("atom_flask0");
     s_names['F'] = QStringLiteral("atom_flask1");
     s_names['G'] = QStringLiteral("atom_flask2");
     s_names['H'] = QStringLiteral("atom_flask3");
     s_names['I'] = QStringLiteral("atom_flask4");
     s_names['J'] = QStringLiteral("atom_flask5");
     s_names['K'] = QStringLiteral("atom_flask6");
     s_names['L'] = QStringLiteral("atom_flask7");
 
     s_bondNames['a'] = QStringLiteral("bond_I_Top");
     s_bondNames['b'] = QStringLiteral("bond_I_TopRight");
     s_bondNames['c'] = QStringLiteral("bond_I_Right");
     s_bondNames['d'] = QStringLiteral("bond_I_BotRight");
     s_bondNames['e'] = QStringLiteral("bond_I_Bottom");
     s_bondNames['f'] = QStringLiteral("bond_I_BotLeft");
     s_bondNames['g'] = QStringLiteral("bond_I_Left");
     s_bondNames['h'] = QStringLiteral("bond_I_TopLeft");
 
     s_bondNames['A'] = QStringLiteral("bond_II_Top");
     s_bondNames['B'] = QStringLiteral("bond_II_Right");
     s_bondNames['C'] = QStringLiteral("bond_II_Bottom");
     s_bondNames['D'] = QStringLiteral("bond_II_Left");
 
     s_bondNames['E'] = QStringLiteral("bond_III_Top");
     s_bondNames['F'] = QStringLiteral("bond_III_Right");
     s_bondNames['G'] = QStringLiteral("bond_III_Bottom");
     s_bondNames['H'] = QStringLiteral("bond_III_Left");
 }
 
 QPixmap AtomFieldItem::renderAtom( KGameRenderer* renderer, atom at, int size )
 {
     if (size == 0) return QPixmap();
 
     QPixmap atomPix = renderer->spritePixmap(s_names.value(at.obj), QSize(size, size));
 
     const qreal dpr = qApp->devicePixelRatio();
 
     QPainter p;
     QPixmap bonds(size * dpr, size * dpr);
     bonds.setDevicePixelRatio(dpr);
     bonds.fill(Qt::transparent);
     for (int c = 0; c < MAX_CONNS_PER_ATOM; c++)
     {
         char conn = at.conn[c];
         if (!conn)
             break;
 
         QPixmap pix = renderer->spritePixmap(s_bondNames.value(conn), QSize(size, size));
 
         p.begin(&bonds);
         p.drawPixmap(0,0, pix);
         p.end();
     }
 
     p.begin(&bonds);
     p.drawPixmap(0,0, atomPix);
     p.end();
     return bonds;
 }
 
 // ----------------- MoleculePreviewItem ----------------------------
 
 MoleculePreviewItem::MoleculePreviewItem( PlayField* scene )
     : QGraphicsItem( nullptr ), m_renderer(scene->renderer()), m_width(0),
     m_atomSize(20), m_maxAtomSize(30), m_mol( nullptr )
 {
     scene->addItem(this);
 }
 
 MoleculePreviewItem::~MoleculePreviewItem()
 {
 }
 
 void MoleculePreviewItem::setMolecule( const Molecule* mol )
 {
     m_mol = mol;
     setWidth( m_width ); // trigger atom size update
 }
 
 void MoleculePreviewItem::setMaxAtomSize(int maxSize)
 {
     m_maxAtomSize = maxSize;
     setWidth( m_width ); // trigger atom size update
 }
 
 void MoleculePreviewItem::setWidth(int width)
 {
     m_width = width;
 
     if(!m_mol)
         return;
     int w = m_mol->width();
     int h = m_mol->height();
     int atomSize = width / qMax(w,h);
     m_atomSize = qMin(atomSize, m_maxAtomSize);
     update();
 }
 
 void MoleculePreviewItem::paint( QPainter * painter, const QStyleOptionGraphicsItem*, QWidget *)
 {
     if ( m_width == 0 || m_mol == nullptr )
         return;
 
     painter->save();
     painter->setBrush(Qt::gray);
     painter->setOpacity(0.5);
     painter->drawRect(boundingRect());
     painter->setOpacity(1.0);
 
     int originX = m_width/2 - m_atomSize*m_mol->width()/2;
     int originY = m_width/2 - m_atomSize*m_mol->height()/2;
 
     // Paint the playing field
     for (int i = 0; i < MOLECULE_SIZE; i++)
         for (int j = 0; j < MOLECULE_SIZE; j++)
         {
             int x = originX + i * m_atomSize;
             int y = originY + j * m_atomSize;
 
             if (m_mol->getAtom(i,j) == 0)
                 continue;
 
             int atomIdx = m_mol->getAtom(i,j);
             QPixmap aPix = AtomFieldItem::renderAtom(m_renderer, m_mol->getAtom(atomIdx), m_atomSize);
             painter->drawPixmap(x, y, aPix);
         }
     painter->restore();
 }
 
 #include "moc_fielditem.cpp"