Warning, file /games/ksudoku/src/gui/gamevariants.cpp was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).

 /***************************************************************************
  *   Copyright 2007      Johannes Bergmeier <johannes.bergmeier@gmx.net>   *
  *   Copyright 2015      Ian Wadham <iandw.au@gmail.com>                   *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
  *   the Free Software Foundation; either version 2 of the License, or     *
  *   (at your option) any later version.                                   *
  *                                                                         *
  *   This program is distributed in the hope that it will be useful,       *
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  *   GNU General Public License for more details.                          *
  *                                                                         *
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program; if not, write to the                         *
  *   Free Software Foundation, Inc.,                                       *
  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
  ***************************************************************************/
 
 #include "gamevariants.h"
 #include "ksudoku_logging.h"
 #include "ksudokugame.h"
 #include "serializer.h"
 
 #include <QEvent>
 #include <QIcon>
 #include <QPainter>
 
 #include <KLocalizedString>
 #include <KMessageBox>
 
 
 
 #include "puzzle.h"
 
 
 namespace ksudoku {
 
 ///////////////////////////////////////////////////////////////////////////////
 // class GameVariant
 ///////////////////////////////////////////////////////////////////////////////
 
 GameVariant::GameVariant(const QString& name, GameVariantCollection* collection)
     : m_name(name)
 {
     if(collection)
         collection->addVariant(this);
 }
 
 void GameVariant::setDescription(const QString& descr) {
     m_description = descr;
 }
 
 void GameVariant::setIcon(const QString& icon) {
     m_icon = icon;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // class GameVariantCollection
 ///////////////////////////////////////////////////////////////////////////////
 
 GameVariantCollection::GameVariantCollection(QObject* parent, bool autoDel)
     : QAbstractListModel(parent), m_autoDelete(autoDel)
 {
 }
 
 GameVariantCollection::~GameVariantCollection() {
     if(m_autoDelete)
         qDeleteAll(m_variants);
     m_variants.clear();
 }
 
 void GameVariantCollection::addVariant(GameVariant* variant) {
     int count = m_variants.count();
     beginInsertRows(QModelIndex(), count, count);
     m_variants.append(variant);
     endInsertRows();
     Q_EMIT newVariant(variant);
 }
 
 int GameVariantCollection::rowCount(const QModelIndex& parent) const {
     Q_UNUSED(parent);
     return m_variants.count();
 }
 
 QModelIndex GameVariantCollection::index(int row, int column, const QModelIndex &parent) const {
     Q_UNUSED(parent);
     if ((row < 0) || (row >= m_variants.count()))
         return QModelIndex();
     return createIndex(row, column, m_variants[row]);
 }
 
 QVariant GameVariantCollection::data(const QModelIndex &index, int role) const {
     if (!index.isValid() || index.row() >= m_variants.count())
         return QVariant();
 
     if (!index.internalPointer())
         return QVariant();
 
     auto* gameVariant = static_cast<GameVariant*>(index.internalPointer());
 
     switch(role) {
         case Qt::DisplayRole:
             return gameVariant->name();
         case Qt::DecorationRole:
             return gameVariant->icon();
         case GameVariantDelegate::Description:
             return gameVariant->description();
     }
 
     return QVariant();
 }
 
 GameVariant* GameVariantCollection::variant(const QModelIndex& index) const {
     return static_cast<GameVariant*>(index.internalPointer());
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // class GameVariantDelegate
 ////////////77/////////////////////////////////////////////////////////////////
 
 GameVariantDelegate::GameVariantDelegate(QObject* parent, QWidget * viewport)
     : QItemDelegate(parent),
       m_viewport(viewport)
 {
 }
 
 QSize GameVariantDelegate::sizeHint(const QStyleOptionViewItem& option,
                     const QModelIndex& index) const
 {
     Q_UNUSED(index);
 
     // Fit a varying number of columns into the list-view.
     int viewportWidth = m_viewport->width();
     int hintWidth     = m_minWidth;
     int nItemsPerRow  = viewportWidth / m_minWidth;
 
     // Expand the hinted width, so that the columns will fill the viewport.
     if (nItemsPerRow > 0) {
         int adjustment = (viewportWidth % nItemsPerRow) ? 0 : 1;
         // The adjustment works around a graphics glitch, when nItemsPerRow
         // exactly divides viewportWidth and instead of nItemsPerRow columns
         // we suddenly get one column less, plus a large empty space, even
         // though QListView::spacing() is zero.
         hintWidth      = (viewportWidth - adjustment) / nItemsPerRow;
     }
 
     // Set the height to contain the icon or 4 lines of text.
     QSize size (hintWidth, 0);
     int fontHeight = option.fontMetrics.height();
     if (m_iconHeight < fontHeight*4) {
         size.setHeight (fontHeight*4 + m_separatorPixels*3);
     }
     else {
         size.setHeight (m_iconHeight + m_separatorPixels*2);
     }
     return size;
 }
 
 void GameVariantDelegate::paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const {
 
     QColor bkgColor;
 
     // Calculate item's column num in list-view. Add 1 in odd-numbered rows.
     int nItemsPerRow = qMax (m_viewport->width() / option.rect.width(), 1);
     int oddColumn = index.row() % nItemsPerRow;
     oddColumn = oddColumn + ((index.row() / nItemsPerRow) % 2);
 
     if (option.state & QStyle::State_Selected) {
         bkgColor = option.palette.color(QPalette::Highlight);
     } else if (oddColumn % 2) {
         // The shading alternates along each row in the list view and
         // each odd-numbered row starts with a shaded item, so we have
         // a checkerboard pattern, regardless of whether nItemsPerRow
         // is odd or even (see the above calculation).
         bkgColor = option.palette.color(QPalette::AlternateBase);
     } else {
         bkgColor = option.palette.color(QPalette::Base);
     }
     painter->fillRect(option.rect, bkgColor);
 
     QRect contentRect = option.rect.adjusted(m_leftMargin, m_separatorPixels, -m_rightMargin, -m_separatorPixels);
 
     // Show icon
 
     QPixmap iconPixmap = QIcon::fromTheme(icon(index)).pixmap(m_iconWidth, m_iconHeight);
     painter->drawPixmap(contentRect.left(), (contentRect.height() - iconPixmap.height()) / 2 + contentRect.top(), iconPixmap);
     contentRect.adjust(iconPixmap.width() + m_separatorPixels*2, 0, 0, 0);
 
 //  // Show configuration icon
 //  if(configurable(index)) {
 //      QPixmap configPixmap = QIcon::fromTheme( QLatin1String( "configure" ) ).pixmap(32, 32);
 //      painter->drawPixmap(contentRect.right() - configPixmap.width(), (contentRect.height() - configPixmap.height()) / 2 + contentRect.top(), configPixmap);
 //      contentRect.adjust(0, 0, -(configPixmap.width() + separatorPixels), 0);
 //  }
 
     // Show Title
     QFont titleFont(painter->font());
     titleFont.setPointSize(titleFont.pointSize() + 2);
     titleFont.setWeight(QFont::Bold);
 
     QPen previousPen(painter->pen());
     // TODO: don't we have a function for 'color1 similar color2'
     if(previousPen.color() == bkgColor) {
         QPen p(previousPen);
         int color = bkgColor.rgb();
         color = ~color | 0xff000000;
         p.setColor(color);
         painter->setPen(p);
     }
 
     QFont previousFont(painter->font());
     painter->setFont(titleFont);
     QString titleStr = painter->fontMetrics().elidedText(title(index), Qt::ElideRight, contentRect.width());
     painter->drawText(contentRect, titleStr);
     contentRect.adjust(0, m_separatorPixels + painter->fontMetrics().height(), 0, 0);
     painter->setFont(previousFont);
 
     // Show Description
     QTextOption wrap(Qt::AlignLeft);
     wrap.setWrapMode(QTextOption::WordWrap);
     QString descrStr = description(index);
     painter->drawText(contentRect, descrStr, wrap);
 
     painter->setPen(previousPen);
 }
 
 QString GameVariantDelegate::title(const QModelIndex& index) const {
     return index.model()->data(index, Qt::DisplayRole).toString();
 }
 
 QString GameVariantDelegate::description(const QModelIndex& index) const {
     return index.model()->data(index, Description).toString();
 }
 
 QString GameVariantDelegate::icon(const QModelIndex& index) const {
     return index.model()->data(index, Qt::DecorationRole).toString();
 }
 
 bool GameVariantDelegate::configurable(const QModelIndex& index) const {
     const auto* collection = dynamic_cast<const GameVariantCollection*>(index.model());
     if(!collection) return false;
 
     return collection->variant(index)->canConfigure();
 }
 
 bool GameVariantDelegate::eventFilter(QObject* watched, QEvent* event) {
     if(event->type() == QEvent::MouseButtonPress) {
         return true;
     }
 
     // TODO insert code for handling clicks on buttons in items.
 
     return QItemDelegate::eventFilter(watched, event);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // class SudokuGame
 ///////////////////////////////////////////////////////////////////////////////
 
 SudokuGame::SudokuGame(const QString& name, uint order, GameVariantCollection* collection)
     : GameVariant(name, collection), m_order(order), m_graph(nullptr)
 {
     // TODO load from settings
     m_symmetry = 0;
 }
 
 SudokuGame::~SudokuGame()
 {
     delete m_graph;
 }
 
 bool SudokuGame::canConfigure() const {
     return true;
 }
 
 bool SudokuGame::configure() {
     KMessageBox::information(nullptr, i18n("Configuration not yet implemented"), QLatin1String(""));
     return false;
 }
 
 bool SudokuGame::canStartEmpty() const {
     return true;
 }
 
 Game SudokuGame::startEmpty() {
     if(!m_graph) {
         m_graph = new SKGraph(m_order, TypeSudoku);
         m_graph->initSudoku();
     }
 
     auto* puzzle = new Puzzle(m_graph, false);
     puzzle->init();
 
     return Game(puzzle);
 }
 
 Game SudokuGame::createGame(int difficulty, int symmetry) {
     if(!m_graph) {
         m_graph = new SKGraph(m_order, TypeSudoku);
         m_graph->initSudoku();
     }
     
     auto* puzzle = new Puzzle(m_graph, true);
     puzzle->init(difficulty, symmetry);
 
     return Game(puzzle);
 }
 
 KsView* SudokuGame::createView(const Game& /*game*/) const {
     qCDebug(KSudokuLog) << "KsView* ksudoku::SudokuGame::createView()";
     return nullptr;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // class RoxdokuGame
 ///////////////////////////////////////////////////////////////////////////////
 
 RoxdokuGame::RoxdokuGame(const QString& name, uint order, GameVariantCollection* collection)
     : GameVariant(name, collection), m_order(order), m_graph(nullptr)
 {
     m_symmetry = 0;
 }
 
 RoxdokuGame::~RoxdokuGame()
 {
     delete m_graph;
 }
 
 bool RoxdokuGame::canConfigure() const {
     return true;
 }
 
 bool RoxdokuGame::configure() {
     KMessageBox::information(nullptr, i18n("Configuration not yet implemented"), QLatin1String(""));
     return false;
 }
 
 bool RoxdokuGame::canStartEmpty() const {
     return true;
 }
 
 Game RoxdokuGame::startEmpty() {
     if(!m_graph) {
         m_graph = new SKGraph(m_order, TypeRoxdoku);
         m_graph->initRoxdoku();
     }
 
     auto* puzzle = new Puzzle(m_graph, false);
     puzzle->init();
 
     return Game(puzzle);
 }
 
 Game RoxdokuGame::createGame(int difficulty, int symmetry) {
     if(!m_graph) {
         m_graph = new SKGraph(m_order, TypeRoxdoku);
         m_graph->initRoxdoku();
     }
 
     auto* puzzle = new Puzzle(m_graph, true);
     puzzle->init(difficulty, symmetry);
 
     return Game(puzzle);
 }
 
 KsView* RoxdokuGame::createView(const Game& /*game*/) const {
     qCDebug(KSudokuLog) << "KsView* ksudoku::RoxdokuGame::createView()";
     return nullptr;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // class CustomGame
 ///////////////////////////////////////////////////////////////////////////////
 
 CustomGame::CustomGame(const QString& name, const QUrl& url,
                        GameVariantCollection* collection)
     : GameVariant(name, collection), m_url(url), m_graph(nullptr)
 {
     m_symmetry = 0;
 }
 
 CustomGame::~CustomGame()
 {
     delete m_graph;
 }
 
 bool CustomGame::canConfigure() const {
     return false;
 }
 
 bool CustomGame::configure() {
     return false;
 }
 
 bool CustomGame::canStartEmpty() const {
     return true;
 }
 
 Game CustomGame::startEmpty() {
     if (! createSKGraphObject()) {
         return Game();
     }
     auto* puzzle = new Puzzle(m_graph, false);
     puzzle->init();
 
     return Game(puzzle);
 }
 
 Game CustomGame::createGame(int difficulty, int symmetry) {
     if (! createSKGraphObject()) {
         return Game();
     }
     auto* puzzle = new Puzzle(m_graph, true);
     puzzle->init(difficulty, symmetry);
 
     return Game(puzzle);
 }
 
 KsView* CustomGame::createView(const Game& /*game*/) const {
     qCDebug(KSudokuLog) << "KsView* ksudoku::CustomGame::createView()";
     return nullptr;
 }
 
 bool CustomGame::createSKGraphObject()
 {
     if ((m_graph != nullptr) && ((m_graph->specificType() == Mathdoku) ||
             (m_graph->specificType() == KillerSudoku))) {
         delete m_graph; // Re-create SKGraph for every Mathdoku or
         m_graph = nullptr;  // Killer Sudoku game (re-inits cages and size).
     }
     if (m_graph == nullptr) {
         QString errorMsg;
         m_graph = ksudoku::Serializer::loadCustomShape(m_url, nullptr, errorMsg);
     }
     return (m_graph != nullptr);    // True if the shapes/*.xml file loaded OK.
 }
 
 }
 
 #include "moc_gamevariants.cpp"