Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegames@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

24 files changed, 2423 insertions, 0 deletions

diff --git a/libksirtet/base/Makefile.am b/libksirtet/base/Makefile.am
new file mode 100644
index 00000000..bb8b2365
--- /dev/null
+++ b/libksirtet/base/Makefile.am
@@ -0,0 +1,16 @@
+INCLUDES = -I$(top_srcdir)/libkdegames -I$(top_srcdir)/libkdegames/highscore $(all_includes)
+
+# Don't compile with hidden symbols since we are a library.
+if disable_VISIBILITY
+KDE_CXXFLAGS = -fvisibility=default
+endif
+
+noinst_LTLIBRARIES        = libksirtetbase.la
+libksirtetbase_la_LDFLAGS = $(all_libraries)
+
+noinst_HEADERS            = kzoommainwindow.h piece.h gtetris.h factory.h highscores.h \
+                            board.h settings.h field.h inter.h main.h
+libksirtetbase_la_SOURCES = kzoommainwindow.cpp main.cpp field.cpp piece.cpp highscores.cpp \
+                            factory.cpp gtetris.cpp board.cpp settings.cpp \
+                            inter.cpp baseprefs.kcfgc
+METASOURCES               = AUTO
diff --git a/libksirtet/base/README b/libksirtet/base/README
new file mode 100644
index 00000000..a16060b1
--- /dev/null
+++ b/libksirtet/base/README
@@ -0,0 +1 @@
+This directory contains code shared between ksirtet, kfouleggs and klickety.
diff --git a/libksirtet/base/baseprefs.kcfgc b/libksirtet/base/baseprefs.kcfgc
new file mode 100644
index 00000000..41c852af
--- /dev/null
+++ b/libksirtet/base/baseprefs.kcfgc
@@ -0,0 +1,7 @@
+# Code generation options for kconfig_compiler
+File=libksirtet1.kcfg
+#IncludeFiles=defines.h
+ClassName=BasePrefs
+Singleton=true
+#CustomAdditions=true
+Mutators=MenubarVisible,BlockSize
diff --git a/libksirtet/base/board.cpp b/libksirtet/base/board.cpp
new file mode 100644
index 00000000..257e72c3
--- /dev/null
+++ b/libksirtet/base/board.cpp
@@ -0,0 +1,429 @@
+#include "board.h"
+#include "board.moc"
+
+#include <knotifyclient.h>
+#include <klocale.h>
+#include <kzoommainwindow.h>
+
+#include "piece.h"
+#include "factory.h"
+#include "baseprefs.h"
+
+using namespace KGrid2D;
+
+//-----------------------------------------------------------------------------
+FixedCanvasView::FixedCanvasView(QWidget *parent, const char *name)
+  : QCanvasView(parent, name, WNoAutoErase)
+{}
+
+QSize FixedCanvasView::sizeHint() const
+{
+  if ( canvas()==0 ) return QSize();
+  return canvas()->size() + 2 * QSize(frameWidth(), frameWidth());
+}
+
+void FixedCanvasView::adjustSize()
+{
+  setFixedSize(sizeHint());
+}
+
+//-----------------------------------------------------------------------------
+const BaseBoard::DirectionData BaseBoard::DIRECTION_DATA[Nb_Direction] = {
+    { SquareBase::Left,  Left },
+    { SquareBase::Right, Right },
+    { SquareBase::Down,  Up },
+    { SquareBase::Up,    Down }
+};
+
+BaseBoard::BaseBoard(bool graphic, QWidget *parent)
+: FixedCanvasView(parent, "board"),
+  GenericTetris(bfactory->bbi.width, bfactory->bbi.height,
+                bfactory->bbi.withPieces, graphic),
+  state(GameOver), timer(this), sequences(0), main(0), _next(0),
+ _arcade(false)
+{
+    if (graphic) {
+        setVScrollBarMode(AlwaysOff);
+        setHScrollBarMode(AlwaysOff);
+        setFrameStyle( QFrame::Panel | QFrame::Sunken );
+
+        sequences = new SequenceArray;
+        main = new BlockInfo(*sequences);
+        setCanvas(main);
+        if (bfactory->bbi.withPieces)
+          _next = new BlockInfo(*sequences);
+        setBlockInfo(main, _next);
+        
+        connect(&timer, SIGNAL(timeout()), SLOT(timeout()));
+        
+        Piece::info().loadColors();
+        KZoomMainWindow::addWidget(this);
+    }
+}
+
+void BaseBoard::copy(const GenericTetris &g)
+{
+    GenericTetris::copy(g);
+    state = static_cast<const BaseBoard &>(g).state;
+}
+
+void BaseBoard::settingsChanged()
+{
+    Q_ASSERT( graphic() );
+    Piece::info().loadColors();
+}
+
+void BaseBoard::adjustSize()
+{
+    int size = BasePrefs::blockSize();
+    
+    sequences->setBlockSize(size);
+    main->resize(matrix().width() * size, matrix().height() * size);
+    for (uint i=0; i<matrix().width(); i++)
+        for (uint j=0; j<firstClearLine(); j++) {
+            Coord c(i, j);
+            if ( matrix()[c]==0 ) continue;
+            partialMoveBlock(c, QPoint(0, 0));
+        }
+    
+    if (_next) {
+      Coord c = Piece::info().maxSize() + Coord(2, 2);
+      _next->resize(c.first * size, c.second * size);
+      _nextPiece->moveCenter();
+    }
+    
+    FixedCanvasView::adjustSize();
+}
+
+BaseBoard::~BaseBoard()
+{
+    if ( graphic() ) {
+        setBlockInfo(0, 0); // destruct all sprites before deleting canvas
+        delete _next;
+        delete main;
+        delete sequences;
+    }
+}
+
+void BaseBoard::init(bool arcade)
+{
+    _arcade = arcade;
+    _arcadeStageDone = false;
+}
+
+void BaseBoard::start(const GTInitData &data)
+{
+	Q_ASSERT( graphic() );
+    if ( !_arcadeStageDone || _arcadeStage==bfactory->bbi.nbArcadeStages )
+        _arcadeStage = 0;
+    _arcadeStageDone = false;
+	state = Normal;
+	GenericTetris::start(data); // NB: the timer is started by updateLevel !
+    if (_arcade) arcadePrepare();
+}
+
+void BaseBoard::stop()
+{
+	timer.stop();
+    state = GameOver;
+}
+
+void BaseBoard::pause()
+{
+	Q_ASSERT( graphic() );
+    timer.stop();
+    _oldState = state;
+    state = Paused;
+	showBoard(false);
+}
+
+void BaseBoard::gameOver()
+{
+    stop();
+    emit gameOverSignal();
+}
+
+void BaseBoard::showCanvas(QCanvas *c, bool show)
+{
+	QCanvasItemList l = c->allItems();
+	QCanvasItemList::Iterator it;
+	for (it=l.begin(); it!=l.end(); ++it) {
+		if (show) (*it)->show();
+		else (*it)->hide();
+	}
+	c->update();
+}
+
+void BaseBoard::showBoard(bool show)
+{
+	showCanvas(main, show);
+}
+
+void BaseBoard::unpause()
+{
+	Q_ASSERT( graphic() );
+	showBoard(true);
+    state = _oldState;
+	startTimer();
+}
+
+void BaseBoard::updateRemoved(uint newRemoved)
+{
+	GenericTetris::updateRemoved(newRemoved);
+    emit removedUpdated();
+}
+
+void BaseBoard::updateScore(uint newScore)
+{
+	GenericTetris::updateScore(newScore);
+    emit scoreUpdated();
+}
+
+int BaseBoard::firstColumnBlock(uint col) const
+{
+	for (int j=firstClearLine()-1; j>=0; j--) {
+        Coord c(col, j);
+		if ( matrix()[c]!=0 ) return j;
+    }
+	return -1;
+}
+
+//-----------------------------------------------------------------------------
+void BaseBoard::_beforeRemove(bool first)
+{
+	if ( graphic() ) {
+		state = ( beforeRemove(first) ? BeforeRemove : Normal );
+		if ( state==BeforeRemove ) {
+			startTimer();
+			return;
+		}
+	}
+	remove();
+	_afterRemove(true);
+}
+
+void BaseBoard::remove()
+{
+    for (uint j=0; j<firstClearLine(); j++)
+        for (uint i=0; i<matrix().width(); i++) {
+            Coord c(i, j);
+            if ( matrix()[c]==0 || !toBeRemoved(c) ) continue;
+            removeBlock(c);
+        }
+    computeInfos();
+    if ( graphic() ) {
+        main->update();
+        KNotifyClient::event(winId(), "removed", i18n("Blocks removed"));
+    }
+}
+
+bool BaseBoard::doFall(bool doAll, bool first, bool lineByLine)
+{
+    Q_ASSERT( !lineByLine || !doAll );
+
+    if ( !doAll ) {
+		if (first) loop = 0;
+		else loop++;
+    }
+	bool final = (doAll || lineByLine
+                  || loop==bfactory->bbi.nbFallStages);
+
+    for (uint i=0; i<matrix().width(); i++) {
+        // compute heights
+        // we must separate this computation since toFall() can depend
+        // directly on the disposition of blocks under the current one
+        // (for e.g. in kfouleggs)
+        // we do not rely on firstClearLine() here since this method is
+        // used in kfouleggs to  make gift blocks fall down ...
+        uint h = 0;
+        QMemArray<uint> heights(matrix().height());
+        for (uint j=1; j<matrix().height(); j++) { // first line cannot fall
+            Coord src(i, j);
+            if ( toFall(src) ) h++;
+            heights[j] = h;
+        }
+
+        // do move
+        for (uint j=1; j<matrix().height(); j++) {
+            Coord src(i, j);
+            if( heights[j]==0 || matrix()[src]==0 ) continue;
+            if (lineByLine) final = false;
+            uint k = j - (lineByLine ? 1 : heights[j]);
+            Coord dest(i, k);
+            if ( final || lineByLine ) moveBlock(src, dest);
+            else partialBlockFall(src, dest);
+        }
+    }
+
+    if (final) computeInfos();
+    return final;
+}
+
+void BaseBoard::_afterRemove(bool first)
+{
+	AfterRemoveResult r = afterRemove(!graphic(), first);
+	switch (r) {
+	  case Done:
+          state = Normal;
+          _afterAfterRemove();
+          return;
+	  case NeedAfterRemove:
+          state = AfterRemove;
+          startTimer();
+          return;
+	  case NeedRemoving:
+          _beforeRemove(true);
+          return;
+	}
+}
+
+BaseBoard::AfterRemoveResult BaseBoard::afterRemove(bool doAll, bool first)
+{
+    return (doFall(doAll, first, false) ? Done : NeedAfterRemove);
+}
+
+void BaseBoard::_afterAfterRemove()
+{
+    if ( isArcade() && arcadeDone()>=arcadeTodo() ) {
+        _arcadeStage++;
+        _arcadeStageDone = true;
+        gameOver();
+        return;
+    }
+    if ( !afterAfterRemove() ) gameOver();
+    else if ( graphic() ) startTimer();
+}
+
+bool BaseBoard::timeout()
+{
+    Q_ASSERT( graphic() );
+    if ( state==GameOver ) return true;
+	switch (state) {
+        case BeforeRemove: _beforeRemove(FALSE); break;
+        case AfterRemove:  _afterRemove(FALSE);  break;
+        default:           return false;
+	}
+	main->update();
+    return true;
+}
+
+bool BaseBoard::startTimer()
+{
+    Q_ASSERT( graphic() );
+    if ( state==GameOver ) return true;
+	switch (state) {
+        case BeforeRemove:
+            timer.start(bfactory->bbi.beforeRemoveTime, true);
+            break;
+        case AfterRemove:
+            timer.start(bfactory->bbi.afterRemoveTime, true);
+            break;
+        default:
+            return false;
+	}
+    return true;
+}
+
+bool BaseBoard::beforeRemove(bool first)
+{
+    if (first) loop = 0;
+	else loop++;
+
+	for (uint j=0; j<firstClearLine(); j++)
+		for (uint i=0; i<matrix().width(); i++) {
+            Coord c(i, j);
+			if ( toBeRemoved(c) ) matrix()[c]->toggleLight();
+        }
+
+	return ( loop!=bfactory->bbi.nbToggles );
+}
+
+
+//-----------------------------------------------------------------------------
+void BaseBoard::partialBlockFall(const Coord &src, const Coord &dest)
+{
+    Q_ASSERT( loop<bfactory->bbi.nbFallStages );
+
+    float c = float(loop+1) / bfactory->bbi.nbFallStages * BasePrefs::blockSize();
+    int xdec = dest.first - src.first;
+    int ydec = src.second - dest.second;
+    QPoint p(int(xdec * c), int(ydec * c));
+    partialMoveBlock(src, p);
+}
+
+uint BaseBoard::findGroup(Square<int> &field, const Coord &c) const
+{
+    uint nb = 0;
+    _findGroup(field, c, nb, false);
+    return nb;
+}
+
+void BaseBoard::setGroup(Square<int> &field, const Coord &c, uint nb) const
+{
+    _findGroup(field, c, nb, true);
+}
+
+void BaseBoard::_findGroup(Square<int> &field, const Coord &c,
+                           uint &nb, bool set) const
+{
+    if (!set) nb++;
+	field[c] = (set ? (int)nb : -1);
+    uint value = matrix()[c]->value();
+    CoordList n = matrix().neighbours(c, true, true);
+    for (CoordList::const_iterator i = n.begin(); i!=n.end(); ++i)
+        blockInGroup(field, *i, value, nb, set);
+}
+
+void BaseBoard::blockInGroup(Square<int> &field, const Coord &c, uint value,
+                             uint &nb, bool set) const
+{
+	if ( matrix()[c]==0 ) return;
+	if ( matrix()[c]->value()!=value ) return;
+	if ( field[c]!=(set ? -1 : 0) ) return;
+	_findGroup(field, c, nb, set);
+}
+
+QMemArray<uint> BaseBoard::findGroups(Square<int> &field, uint minSize,
+									  bool exitAtFirstFound) const
+{
+    field.fill(0);
+    QMemArray<uint> groups;
+ 	for (uint j=0; j<firstClearLine(); j++)
+		for (uint i=0; i<matrix().width(); i++) {
+            Coord c(i, j);
+			if ( matrix()[c]==0 || matrix()[c]->isGarbage() ) continue;
+			if ( field[c]!=0 ) continue;
+            uint nb = findGroup(field, c);
+            setGroup(field, c, nb);
+            if ( nb>=minSize ) {
+				uint s = groups.size();
+				groups.resize(s+1);
+				groups[s] = nb;
+                if (exitAtFirstFound) return groups;
+			}
+		}
+    return groups;
+}
+
+uint BaseBoard::drawCode(const Coord &c) const
+{
+	uint v = matrix()[c]->value();
+	uint code = 0;
+    for (uint i=0; i<Nb_Direction; i++) {
+        Coord nc = SquareBase::neighbour(c, DIRECTION_DATA[i].neighbour);
+        if ( !matrix().inside(nc) || matrix()[nc]==0
+            || matrix()[nc]->value()!=v ) continue;
+        code |= DIRECTION_DATA[i].direction;
+    }
+	return code;
+}
+
+void BaseBoard::computeNeighbours()
+{
+	for (uint j=0; j<firstClearLine(); j++)
+		for (uint i=0; i<matrix().width(); i++) {
+            Coord c(i, j);
+			if ( matrix()[c]==0 || matrix()[c]->isGarbage() ) continue;
+			matrix()[c]->sprite()->setFrame( drawCode(c) );
+		}
+}
diff --git a/libksirtet/base/board.h b/libksirtet/base/board.h
new file mode 100644
index 00000000..443c6532
--- /dev/null
+++ b/libksirtet/base/board.h
@@ -0,0 +1,134 @@
+#ifndef BASE_BOARD_H
+#define BASE_BOARD_H
+
+#include <qtimer.h>
+#include <qcanvas.h>
+
+#include "gtetris.h"
+
+#include <kdemacros.h>
+
+class SequenceArray;
+class BlockInfo;
+
+//-----------------------------------------------------------------------------
+class KDE_EXPORT FixedCanvasView : public QCanvasView
+{
+  Q_OBJECT
+public:
+  FixedCanvasView(QWidget *parent = 0, const char *name = 0);
+  
+  virtual QSize sizeHint() const;
+  
+public slots:
+  virtual void adjustSize();
+};
+
+//-----------------------------------------------------------------------------
+class KDE_EXPORT BaseBoard : public FixedCanvasView, public GenericTetris
+{
+ Q_OBJECT
+ public:
+    enum Direction { Left = 1, Right = 2, Up = 4, Down = 8, Nb_Direction = 4 };
+ private:
+    struct DirectionData {
+        KGrid2D::SquareBase::Neighbour neighbour;
+        Direction direction;
+    };
+    static const DirectionData DIRECTION_DATA[Nb_Direction];
+
+ public:
+    BaseBoard(bool graphic, QWidget *parent);
+    virtual ~BaseBoard();
+    void copy(const GenericTetris &);
+
+    void init(bool arcade);
+    virtual void start(const GTInitData &);
+    virtual void pause();
+    virtual void unpause();
+    virtual void stop();
+    bool isGameOver() const { return state==GameOver; }
+    bool isPaused() const { return state==Paused; }
+
+    bool isArcade() const { return _arcade; }
+    uint arcadeStage() const { return _arcadeStage; }
+    bool arcadeStageDone() const { return _arcadeStageDone; }
+    virtual uint arcadeTodo() const { return 0; }
+    virtual uint arcadeDone() const { return 0; }
+    
+    virtual void settingsChanged();
+    BlockInfo *next() const { return _next; }
+
+    int firstColumnBlock(uint column) const;
+    
+ public slots:
+    virtual void adjustSize();
+
+ protected slots:
+    virtual bool timeout(); // return true if treated
+
+ signals:
+    void updatePieceConfigSignal();
+    void removedUpdated();
+    void scoreUpdated();
+    void gameOverSignal();
+
+ protected:
+    virtual bool beforeRemove(bool first);
+    void _beforeRemove(bool first);
+    enum AfterRemoveResult { Done, NeedAfterRemove, NeedRemoving };
+    virtual AfterRemoveResult afterRemove(bool doAll, bool first);
+    void _afterAfterRemove();
+    virtual bool afterAfterRemove() = 0;
+    virtual bool startTimer(); // return true if treated
+    virtual bool toBeRemoved(const KGrid2D::Coord &) const = 0;
+    virtual void remove();
+    virtual bool toFall(const KGrid2D::Coord &) const = 0;//height>0 when called
+    virtual bool doFall(bool doAll, bool first, bool lineByLine);
+    virtual void gameOver();
+    virtual void arcadePrepare() {}
+
+    uint drawCode(const KGrid2D::Coord &) const;
+    void computeNeighbours();
+    void partialBlockFall(const KGrid2D::Coord &src, const KGrid2D::Coord &dest);
+
+    // return the sizes of the groups (>=minSize)
+    QMemArray<uint> findGroups(KGrid2D::Square<int> &field, uint minSize,
+							   bool exitAtFirstFound = false) const;
+    // find group size and put -1 in the corresponding blocks (these blocks
+    // should be 0 at start)
+    uint findGroup(KGrid2D::Square<int> &field, const KGrid2D::Coord &) const;
+    // set the size of the group in the blocks (these blocks should be -1
+    // at start ie you should have called findGroup() before)
+    void setGroup(KGrid2D::Square<int> &field, const KGrid2D::Coord &c,
+                  uint nb) const;
+
+    void updateRemoved(uint newRemoved);
+    void updateScore(uint newScore);
+
+    virtual void showBoard(bool show);
+    void showCanvas(QCanvas *c, bool show);
+
+    enum BoardState { GameOver, Normal, Paused,
+                      DropDown, BeforeGlue, AfterGlue, BeforeRemove,
+                      AfterRemove, AfterGift };
+    BoardState     state, _oldState;
+    QTimer         timer;
+    SequenceArray *sequences;
+    BlockInfo     *main, *_next;
+    uint           loop;
+
+ private:
+    bool _arcade, _arcadeStageDone;
+    uint _arcadeStage;
+
+    void _afterRemove(bool first);
+    void updatePieceConfig() { emit updatePieceConfigSignal(); }
+
+    void _findGroup(KGrid2D::Square<int> &field, const KGrid2D::Coord &c,
+                    uint &nb, bool set) const;
+    void blockInGroup(KGrid2D::Square<int> &field, const KGrid2D::Coord &c,
+                      uint value, uint &nb, bool ser) const;
+};
+
+#endif
diff --git a/libksirtet/base/factory.cpp b/libksirtet/base/factory.cpp
new file mode 100644
index 00000000..55850f0b
--- /dev/null
+++ b/libksirtet/base/factory.cpp
@@ -0,0 +1,52 @@
+#include "factory.h"
+
+#include <kaboutdata.h>
+#include <kapplication.h>
+#include <kcmdlineargs.h>
+#include <kglobal.h>
+#include <klocale.h>
+
+#include "settings.h"
+
+
+BaseFactory *BaseFactory::_self = 0;
+
+BaseFactory::BaseFactory(const MainData &md, const BaseBoardInfo &bi)
+    : mainData(md), bbi(bi)
+{
+    Q_ASSERT( _self==0 );
+    _self = this;
+    _aboutData =
+        new KAboutData(md.appName, md.trName, md.longVersion, md.description,
+                       KAboutData::License_GPL,
+                       "(c) 1995, Eirik Eng\n(c) 1996-2004, Nicolas Hadacek",
+                       0, md.homepage);
+    _aboutData->addAuthor("Nicolas Hadacek", 0, "hadacek@kde.org");
+    _aboutData->addCredit("Eirik Eng", I18N_NOOP("Core engine"));
+}
+
+void BaseFactory::init(int argc, char **argv)
+{
+    KCmdLineArgs::init(argc, argv, _aboutData);
+    (void)new KApplication;
+    KGlobal::locale()->insertCatalogue("libkdegames");
+    KGlobal::locale()->insertCatalogue("libksirtet");
+}
+
+BaseFactory::~BaseFactory()
+{
+    delete kapp;
+    delete _aboutData;
+    Q_ASSERT(_self);
+    _self = 0;
+}
+
+QWidget *BaseFactory::createAppearanceConfig()
+{
+    return new BaseAppearanceConfig;
+}
+
+QWidget *BaseFactory::createColorConfig()
+{
+    return new ColorConfig;
+}
diff --git a/libksirtet/base/factory.h b/libksirtet/base/factory.h
new file mode 100644
index 00000000..b542205e
--- /dev/null
+++ b/libksirtet/base/factory.h
@@ -0,0 +1,60 @@
+#ifndef BASE_FACTORY_H
+#define BASE_FACTORY_H
+
+#include <qglobal.h>
+
+#include <kdemacros.h>
+
+struct MainData {
+    const char *appName, *trName, *description, *homepage, *removedLabel,
+        *version, *longVersion;
+};
+
+struct BaseBoardInfo {
+    uint width, height;
+    bool withPieces;
+
+    uint beforeRemoveTime, afterRemoveTime;
+    uint nbToggles, nbFallStages;
+
+    uint nbArcadeStages;
+
+    const uint *histogram;
+    uint histogramSize;
+    bool scoreBound;
+};
+
+class BaseBoard;
+class BaseInterface;
+class QWidget;
+class KAboutData;
+
+#define bfactory BaseFactory::self()
+
+class KDE_EXPORT BaseFactory
+{
+ public:
+    BaseFactory(const MainData &, const BaseBoardInfo &);
+    virtual ~BaseFactory();
+    void init(int argc, char **argv);
+
+    static BaseFactory *self() { return _self; }
+
+    const MainData      &mainData;
+    const BaseBoardInfo &bbi;
+
+    virtual BaseBoard *createBoard(bool graphic, QWidget *parent) = 0;
+    virtual BaseInterface *createInterface(QWidget *parent) = 0;
+
+    virtual QWidget *createAppearanceConfig();
+    virtual QWidget *createColorConfig();
+    virtual QWidget *createGameConfig() { return 0; }
+ 
+ protected:
+    KAboutData *_aboutData;
+
+ private:
+    static BaseFactory *_self;
+};
+
+#endif
diff --git a/libksirtet/base/field.cpp b/libksirtet/base/field.cpp
new file mode 100644
index 00000000..53f6220a
--- /dev/null
+++ b/libksirtet/base/field.cpp
@@ -0,0 +1,162 @@
+#include "field.h"
+
+#include <qwhatsthis.h>
+#include <qlayout.h>
+#include <qlabel.h>
+#include <qpushbutton.h>
+
+#include <klocale.h>
+#include <kcanvasrootpixmap.h>
+#include <knotifyclient.h>
+#include <kgamelcd.h>
+
+#include "factory.h"
+#include "board.h"
+#include "baseprefs.h"
+
+
+const char *BaseField::BUTTON_TEXTS[NB_BUTTON_TYPE] = {
+    I18N_NOOP("Start"), I18N_NOOP("Resume"), I18N_NOOP("Proceed")
+};
+
+BaseField::BaseField(QWidget *w)
+    : _widget(w), _boardLayout(0), _label(0), _button(0)
+{
+    top = new QGridLayout(w, 3, 5, 10);
+
+    lcds = new QGridLayout(7, 1, 5);
+    top->addLayout(lcds, 1, 0);
+    lcds->setRowStretch(1, 0);
+
+    board = bfactory->createBoard(true, w);
+    _boardRootPixmap = new KCanvasRootPixmap(board);
+    _boardRootPixmap->start();
+    top->addWidget(board, 1, 2);
+}
+
+void BaseField::init(bool AI, bool multiplayer, bool server, bool first,
+                     const QString &name)
+{
+    _flags.AI = AI;
+    _flags.multiplayer = multiplayer;
+    _flags.server = server;
+    _flags.first = first;
+	QString text = (AI ? i18n("%1\n(AI player)").arg(name)
+                    : (multiplayer ? i18n("%1\n(Human player)").arg(name)
+                       : QString::null));
+	if ( first && !server ) text += i18n("\nWaiting for server");
+	setMessage(text, (first && server ? StartButton : NoButton));
+    showScore->resetColor();
+    board->init(false);
+}
+
+void BaseField::setArcade()
+{
+    board->init(true);
+    setMessage(i18n("Stage #1"), StartButton);
+}
+
+bool BaseField::isArcade() const
+{
+    return board->isArcade();
+}
+
+void BaseField::setMessage(const QString &label, ButtonType type)
+{
+    delete _label;
+    _label = 0;
+    delete _button;
+    _button = 0;
+    delete _boardLayout;
+    _boardLayout = 0;
+
+    if ( label.isEmpty() && type==NoButton ) {
+        _widget->setFocus();
+        return;
+    }
+
+    _boardLayout = new QVBoxLayout(board);
+    _boardLayout->addStretch(3);
+    if ( !label.isEmpty() ) {
+        QString str = (isArcade() ? i18n("Arcade game") + '\n'
+                       : QString::null) + label;
+        _label = new QLabel(str, board);
+        _label->setAlignment(Qt::AlignCenter);
+        _label->setFrameStyle( QFrame::Panel | QFrame::Sunken );
+        _boardLayout->addWidget(_label, 0, Qt::AlignCenter);
+        _label->show();
+    }
+    _boardLayout->addStretch(1);
+    if ( type!=NoButton ) {
+        _button = new QPushButton(i18n(BUTTON_TEXTS[type]), board);
+        _button->setFocus();
+        const char *slot = (type==ResumeButton ? SLOT(pause())
+                            : SLOT(start()));
+        _button->connect(_button, SIGNAL(clicked()),
+                              _widget->parent(), slot);
+        _boardLayout->addWidget(_button, 0, Qt::AlignCenter);
+        _button->show();
+    }
+    _boardLayout->addStretch(3);
+}
+
+void BaseField::start(const GTInitData &data)
+{
+    _firstScore = KExtHighscore::firstScore();
+    _lastScore = KExtHighscore::lastScore();
+    hideMessage();
+	board->start(data);
+}
+
+void BaseField::pause(bool pause)
+{
+	if (pause) {
+		board->pause();
+        setMessage(i18n("Game paused"), ResumeButton);
+	} else {
+		board->unpause();
+        hideMessage();
+	}
+}
+
+void BaseField::stop(bool gameover)
+{
+	board->stop();
+    ButtonType button = StartButton;
+    QString msg = (gameover ? i18n("Game over") : QString::null);
+    if ( board->isArcade() && board->arcadeStageDone() ) {
+        if ( board->arcadeStage()==bfactory->bbi.nbArcadeStages )
+            msg = i18n("The End");
+        else {
+            msg = i18n("Stage #%1 done").arg(board->arcadeStage());
+            button = ProceedButton;
+        }
+    }
+    setMessage(msg, button);
+}
+
+void BaseField::gameOver(const KExtHighscore::Score &score, QWidget *parent)
+{
+    KNotifyClient::event(parent->winId(), "game over", i18n("Game Over"));
+    KExtHighscore::submitScore(score, parent);
+}
+
+void BaseField::scoreUpdated()
+{
+    showScore->display( (int)board->score() );
+    if (_flags.multiplayer) return;
+
+    QColor color;
+    if ( _firstScore<currentScore() ) color = Qt::red;
+    else if ( _lastScore<currentScore() ) color = Qt::blue;
+    showScore->setColor(color);
+}
+
+void BaseField::settingsChanged()
+{
+    QColor color = BasePrefs::fadeColor();
+    double s = BasePrefs::fadeIntensity();
+    _boardRootPixmap->setFadeEffect(s, color);
+    board->canvas()->setBackgroundColor(color);
+    board->settingsChanged();
+}
diff --git a/libksirtet/base/field.h b/libksirtet/base/field.h
new file mode 100644
index 00000000..d006a052
--- /dev/null
+++ b/libksirtet/base/field.h
@@ -0,0 +1,66 @@
+#ifndef BASE_FIELD_H
+#define BASE_FIELD_H
+
+#include <kexthighscore.h>
+
+#include <kdemacros.h>
+
+class QVBoxLayout;
+class QGridLayout;
+class KGameLCD;
+class KGameLCDList;
+class BaseBoard;
+class QLabel;
+class QButton;
+class GTInitData;
+class KCanvasRootPixmap;
+
+class KDE_EXPORT BaseField
+{
+ public:
+    BaseField(QWidget *widget);
+    virtual ~BaseField() {}
+        
+    virtual KExtHighscore::Score currentScore() const = 0;
+    static void gameOver(const KExtHighscore::Score &, QWidget *parent);
+
+    virtual void setArcade();
+    bool isArcade() const;
+
+ protected:
+    QGridLayout  *top, *lcds;
+    KGameLCD     *showScore;
+    KGameLCDList *removedList, *scoreList;
+    BaseBoard    *board;
+
+    virtual void scoreUpdated();
+    virtual void init(bool AI, bool multiplayer, bool server, bool first,
+                      const QString &name);
+    virtual void start(const GTInitData &);
+    virtual void pause(bool pause);
+    virtual void stop(bool gameover);
+    virtual void settingsChanged();
+
+ private:
+    QWidget   *_widget;
+    struct Flags {
+        bool AI, multiplayer, server, first;
+    };
+    Flags        _flags;
+    uint         _arcadeStage;
+    QVBoxLayout *_boardLayout;
+    QLabel      *_label;
+    QButton     *_button;
+    KCanvasRootPixmap *_boardRootPixmap;
+    KExtHighscore::Score _firstScore, _lastScore;
+
+    enum ButtonType { StartButton = 0, ResumeButton, ProceedButton,
+                      NB_BUTTON_TYPE, NoButton = NB_BUTTON_TYPE };
+    static const char *BUTTON_TEXTS[NB_BUTTON_TYPE];
+
+    bool hasButton() const { return _flags.server && _flags.first; }
+	void setMessage(const QString &label, ButtonType);
+    void hideMessage() { setMessage(QString::null, NB_BUTTON_TYPE); }
+};
+
+#endif
diff --git a/libksirtet/base/gtetris.cpp b/libksirtet/base/gtetris.cpp
new file mode 100644
index 00000000..2141f9ef
--- /dev/null
+++ b/libksirtet/base/gtetris.cpp
@@ -0,0 +1,241 @@
+#include "gtetris.h"
+
+#include "piece.h"
+
+
+using namespace KGrid2D;
+
+GenericTetris::GenericTetris(uint width, uint height, bool withPieces,
+                             bool graphic)
+    : _nextPiece(0), _currentPiece(0), _score(0), _nbRemoved(0),
+      _nbClearLines(height), _main(0),
+      _graphic(graphic), _matrix(width, height)
+{
+    if (withPieces) {
+        _nextPiece = new Piece;
+        _currentPiece = new Piece;
+    }
+    _matrix.fill(0);
+}
+
+void GenericTetris::copy(const GenericTetris &g)
+{
+    Q_ASSERT(_currentPiece);
+    // copy to non graphic
+    _score         = g._score;
+    _level         = g._level;
+    _nbRemoved     = g._nbRemoved;
+    _nbClearLines  = g._nbClearLines;
+    _currentPos    = g._currentPos;
+    _nextPiece->copy(g._nextPiece);
+    _currentPiece->copy(g._currentPiece);
+    for (uint i=0; i<_matrix.size(); i++) {
+        Coord c = _matrix.coord(i);
+        delete _matrix[c];
+        if ( g._matrix[c] ) _matrix[c] = new Block(g._matrix[c]->value());
+        else _matrix[c] = 0;
+    }
+}
+
+void GenericTetris::clear()
+{
+    _currentPos = Coord(0, -1);
+    for (uint i=0; i<_matrix.size(); i++) removeBlock(_matrix.coord(i));
+    computeInfos();
+}
+
+GenericTetris::~GenericTetris()
+{
+    // everything should already be done by setBlockInfo(0, 0);
+}
+
+void GenericTetris::setBlockInfo(BlockInfo *main, BlockInfo *next)
+{
+    Q_ASSERT( _graphic );
+    if (main) {
+        _main = main;
+        if (_currentPiece) {
+            Q_ASSERT(next);
+            _nextPiece->setBlockInfo(next);
+            _currentPiece->setBlockInfo(main);
+        }
+    } else { // before destruction
+        clear();
+        delete _currentPiece;
+        delete _nextPiece;
+    }
+}
+
+void GenericTetris::start(const GTInitData &data)
+{
+    Q_ASSERT( _graphic );
+    _random.setSeed(data.seed);
+    _initLevel = data.initLevel;
+    updateScore(0);
+    updateLevel(_initLevel);
+    updateRemoved(0);
+    clear();
+    if (_nextPiece) {
+        _nextPiece->setRandomSequence(&_random);
+        _nextPiece->generateNext();
+        newPiece();
+    }
+}
+
+void GenericTetris::dropDown()
+{
+    uint dropHeight = moveTo(Coord(0, -_currentPos.second));
+    pieceDropped(dropHeight);
+}
+
+void GenericTetris::oneLineDown()
+{
+    if ( moveTo(Coord(0, -1))==0 ) pieceDropped(0);
+}
+
+bool GenericTetris::newPiece()
+{
+    Q_ASSERT(_currentPiece);
+    Coord min = _nextPiece->min();
+    _currentPos.second = _matrix.height() - 1 + min.second;
+    _currentPos.first  = (_matrix.width() - _nextPiece->size().first)/2
+                         - min.first;
+    if ( !canPosition(_currentPos, _nextPiece)) {
+        _currentPos.second = -1;
+        return false;
+    }
+    _currentPiece->copy(_nextPiece);
+    if (_graphic) {
+        _currentPiece->move(toPoint(_currentPos));
+        _currentPiece->show(true);
+        updatePieceConfig();
+    }
+    _nextPiece->generateNext();
+    if (_graphic) {
+        _nextPiece->moveCenter();
+        _nextPiece->show(true);
+        updateNextPiece();
+    }
+    return true;
+}
+
+bool GenericTetris::canPosition(const Coord &pos, const Piece *piece) const
+{
+    for(uint k=0; k<piece->nbBlocks(); k++) {
+        Coord c(piece->pos(k, pos));
+        if ( !_matrix.inside(c) || _matrix[c]!=0 )
+            return false; // outside or something in the way
+    }
+    return true;
+}
+
+uint GenericTetris::moveTo(const Coord &dec)
+{
+    Q_ASSERT(_currentPiece);
+    Q_ASSERT(dec.first==0 || dec.second==0);
+
+    Coord newPos = _currentPos;
+    Coord d(0, 0);
+    uint n, i;
+
+    if (dec.first) {
+        d.first = (dec.first<0 ? -1 : 1);
+        n = kAbs(dec.first);
+    } else {
+        d.second = (dec.second<0 ? -1 : 1);
+        n = kAbs(dec.second);
+    }
+
+    for (i=0; i<n; i++) {
+        if ( !canPosition(newPos + d, _currentPiece) ) break;
+        newPos = newPos + d;
+    }
+    if ( i!=0 ) { // piece can be moved
+        _currentPos = newPos;
+        if (_graphic) {
+            _currentPiece->move(toPoint(newPos));
+            updatePieceConfig();
+        }
+    }
+    return i;
+}
+
+bool GenericTetris::rotate(bool left)
+{
+    Q_ASSERT(_currentPiece);
+
+    Piece tmp;
+    tmp.copy(_currentPiece);
+    QPoint p(0, 0);
+    tmp.rotate(left, p);
+    if ( canPosition(_currentPos, &tmp) ) {
+        if (_graphic) p = toPoint(_currentPos);
+        _currentPiece->rotate(left, p);
+        if (_graphic) updatePieceConfig();
+        return true;
+    }
+    return false;
+}
+
+void GenericTetris::computeInfos()
+{
+    _nbClearLines = 0;
+    for (uint j=_matrix.height(); j>0; j--) {
+        for (uint i=0; i<_matrix.width(); i++)
+            if ( _matrix[Coord(i, j-1)]!=0 ) return;
+        _nbClearLines++;
+    }
+}
+
+void GenericTetris::setBlock(const Coord &c, Block *b)
+{
+	Q_ASSERT( b && _matrix[c]==0 );
+	_matrix[c] = b;
+	if (_graphic) {
+        QPoint p = toPoint(c);
+        b->sprite()->move(p.x(), p.y());
+    }
+}
+
+void GenericTetris::removeBlock(const Coord &c)
+{
+	delete _matrix[c];
+	_matrix[c] = 0;
+}
+
+void GenericTetris::moveBlock(const Coord &src, const Coord &dest)
+{
+	Q_ASSERT( _matrix[dest]==0 );
+	if ( _matrix[src] ) {
+		setBlock(dest, _matrix[src]);
+		_matrix[src] = 0;
+	}
+}
+
+QPoint GenericTetris::toPoint(const Coord &c) const
+{
+	return _main->toPoint(Coord(c.first, _matrix.height() - 1 - c.second));
+}
+
+void GenericTetris::gluePiece()
+{
+    Q_ASSERT(_currentPiece);
+
+	for(uint k=0; k<_currentPiece->nbBlocks(); k++)
+		setBlock(_currentPiece->pos(k, _currentPos),
+                 _currentPiece->takeBlock(k));
+	computeInfos();
+}
+
+void GenericTetris::bumpCurrentPiece(int dec)
+{
+	Q_ASSERT( _graphic && _currentPiece );
+	_currentPiece->move(toPoint(_currentPos) + QPoint(0, dec));
+}
+
+void GenericTetris::partialMoveBlock(const Coord &c, const QPoint &dec)
+{
+	Q_ASSERT( _graphic && _matrix[c]!=0 );
+    QPoint p = toPoint(c) + dec;
+	_matrix[c]->sprite()->move(p.x(), p.y());
+}
diff --git a/libksirtet/base/gtetris.h b/libksirtet/base/gtetris.h
new file mode 100644
index 00000000..48aefb9d
--- /dev/null
+++ b/libksirtet/base/gtetris.h
@@ -0,0 +1,178 @@
+/****************************************************************************
+**
+** Definition of GenericTetris, a generic class for implementing Tetris.
+**
+** Author   : Eirik Eng
+** Created  : 940126
+** Modified by Nicolas Hadacek
+**
+** Copyright (C) 1994 by Eirik Eng. All rights reserved.
+**
+**---------------------------------------------------------------------------
+**
+** The GenericTetris class is an abstract class that can be used to implement
+** the well known game of Tetris. It is totally independent of any hardware
+** platform or user interface mechanism. It has no notion of time, so you
+** have to supply the timer ticks (or heartbeat) of the game. Apart from
+** that this is a complete Tetris implementation.
+**
+** In the following it is assumed that the reader is familiar with the game
+** of Tetris.
+**
+** The class operates on a grid of squares (referred to as the "board" below),
+** where each of the different types of pieces in Tetris covers 4 squares. The
+** width and height of the board can be specified in the constructor (default
+** is 10x22). The coordinate (0,0) is at the TOP LEFT corner. The class
+** assumes that it has total control over the board and uses this to optimize
+** drawing of the board. If you need to update parts of the board
+** (e.g. if you are using a window system), use the updateBoard() function.
+**
+** An implementation of the game must subclass from TetrisBoard and must
+** implement these abstract functions:
+**
+**     virtual void drawSquare(int x,int y,int value)
+**
+**        This function is called when a square needs to be drawn
+**        on the Tetris board. A value of 0 means that the square
+**        should be erased. Values of 1 to 7 indicate the different
+**        types of pieces. (Thus a minimal implementation can
+**        draw 0 in one way and 1-7 in a second way). The x and y
+**        values are coordinates on the Tetris board (see above).
+**
+**    virtual void gameOver()
+**
+**        This function is called when it is impossible to put a new
+**        piece at the top of the board.
+**
+** To get a working minimal implementation of Tetris the following functions
+** must be called from the user interface:
+**
+**     void startGame()
+**
+**         Clears the board and starts a new game.
+**
+**    void moveLeft()
+**    void moveRight()
+**    void rotateLeft()
+**    void rotateRight()
+**
+**        The standard Tetris controls for moving and rotating the
+**        falling pieces.
+**
+**    void dropDown();
+**
+**        Another Tetris control, drops the falling piece and calls the
+**        virtual function pieceDropped(), whose default implementation is
+**        to create a new block which appears at the top of the board.
+**
+**    void oneLineDown();
+**
+**        This is where you supply the timer ticks, or heartbeat, of the
+**        game. This function moves the current falling piece one line down
+**        on the board, or, if that cannot be done, calls the virtual
+**        function pieceDropped() (see dropDown() above). The time between
+**        each call to this function directly affects the difficulty of the
+**        game. If you want to pause the game, simply block calls to the
+**        user control functions above and stop calling this function (you
+**        might want to call hideBoard() also).
+**
+** And that's it! There are several other public functions you can call
+** and virtual functions you can overload to modify or extend the game.
+**
+** Do whatever you want with this code (i.e. the files gtetris.h,
+** gtetris.cpp, tpiece.h and tpiece.cpp). It is basically a weekend hack
+** and it would bring joy to my heart if anyone in any way would find
+** it useful.
+**
+** Nostalgia, comments and/or praise can be sent to: Eirik.Eng@troll.no
+**
+****************************************************************************/
+
+#ifndef GTETRIS_H
+#define GTETRIS_H
+
+#include <qpoint.h>
+
+#include <krandomsequence.h>
+#include <kgrid2d.h>
+
+#include <kdemacros.h>
+
+class Piece;
+class BlockInfo;
+class Block;
+
+struct GTInitData {
+    int  seed;
+    uint initLevel;
+};
+
+class KDE_EXPORT GenericTetris
+{
+ public:
+    GenericTetris(uint width, uint height, bool withPieces, bool graphic);
+    virtual ~GenericTetris();
+    virtual void copy(const GenericTetris &);
+
+    void setBlockInfo(BlockInfo *main, BlockInfo *next);
+    virtual void start(const GTInitData &);
+
+    uint moveLeft(int steps = 1)  { return moveTo(KGrid2D::Coord(-steps, 0)); }
+    uint moveRight(int steps = 1) { return moveTo(KGrid2D::Coord(steps, 0)); }
+    bool rotateLeft()             { return rotate(true); }
+    bool rotateRight()            { return rotate(false); }
+    virtual void oneLineDown();
+    virtual void dropDown();
+
+    KRandomSequence &randomSequence() { return _random; }
+    uint score() const          { return _score; }
+    uint level() const          { return _level; }
+    uint nbClearLines() const   { return _nbClearLines; }
+    uint nbRemoved() const      { return _nbRemoved; }
+    bool graphic() const        { return _graphic; }
+    uint firstClearLine() const { return _matrix.height() - _nbClearLines; }
+    const KGrid2D::Coord &currentPos() const { return _currentPos; }
+    const Piece *nextPiece() const    { return _nextPiece; }
+    const Piece *currentPiece() const { return _currentPiece; }
+    const KGrid2D::Square<Block *> &matrix() const { return _matrix; }
+
+ protected:
+    Piece           *_nextPiece, *_currentPiece;
+ 
+    virtual void pieceDropped(uint /*dropHeight*/) {}
+    virtual bool newPiece(); // return false if cannot place new piece
+    virtual void gluePiece();
+    virtual void computeInfos();
+
+    virtual void updateRemoved(uint newNbRemoved) { _nbRemoved = newNbRemoved;}
+    virtual void updateScore(uint newScore)       { _score = newScore; }
+    virtual void updateLevel(uint newLevel)       { _level = newLevel; }
+
+    void setBlock(const KGrid2D::Coord &, Block *);
+    virtual void removeBlock(const KGrid2D::Coord &);
+    void moveBlock(const KGrid2D::Coord &src, const KGrid2D::Coord &dest);
+
+    virtual void updateNextPiece()   {}
+    virtual void updatePieceConfig() {}
+    void bumpCurrentPiece(int dec);
+    void partialMoveBlock(const KGrid2D::Coord &, const QPoint &dec);
+
+ private:
+    QPoint toPoint(const KGrid2D::Coord &) const;
+    uint moveTo(const KGrid2D::Coord &dec);
+    bool rotate(bool left);
+    void clear();
+    bool canPosition(const KGrid2D::Coord &newPos, const Piece *newPiece) const;
+
+    GenericTetris(const GenericTetris &); // disabled
+
+    uint             _score, _level, _nbRemoved;
+    uint             _nbClearLines, _initLevel;
+    KGrid2D::Coord    _currentPos;
+    BlockInfo       *_main;
+    bool             _graphic;
+    KGrid2D::Square<Block *> _matrix;
+    KRandomSequence  _random;
+};
+
+#endif
diff --git a/libksirtet/base/highscores.cpp b/libksirtet/base/highscores.cpp
new file mode 100644
index 00000000..2b3596d7
--- /dev/null
+++ b/libksirtet/base/highscores.cpp
@@ -0,0 +1,19 @@
+#include "highscores.h"
+
+#include <kurl.h>
+
+#include "factory.h"
+
+
+using namespace KExtHighscore;
+
+BaseHighscores::BaseHighscores()
+{
+    setWWHighscores(KURL( bfactory->mainData.homepage ), bfactory->mainData.version);
+    const BaseBoardInfo &bi = bfactory->bbi;
+    if ( bi.histogramSize!=0 ) {
+        QMemArray<uint> a;
+        a.duplicate(bi.histogram, bi.histogramSize);
+        setScoreHistogram(a, bi.scoreBound ? ScoreBound : ScoreNotBound);
+    }
+}
diff --git a/libksirtet/base/highscores.h b/libksirtet/base/highscores.h
new file mode 100644
index 00000000..b3e7b99e
--- /dev/null
+++ b/libksirtet/base/highscores.h
@@ -0,0 +1,13 @@
+#ifndef BASE_HIGHSCORES_H
+#define BASE_HIGHSCORES_H
+
+#include <kexthighscore.h>
+#include <kdemacros.h>
+
+class KDE_EXPORT BaseHighscores : public KExtHighscore::Manager
+{
+ public:
+    BaseHighscores();
+};
+
+#endif
diff --git a/libksirtet/base/inter.cpp b/libksirtet/base/inter.cpp
new file mode 100644
index 00000000..4f40b63f
--- /dev/null
+++ b/libksirtet/base/inter.cpp
@@ -0,0 +1,15 @@
+#include "inter.h"
+
+#include <kexthighscore.h>
+
+
+void BaseInterface::showHighscores(QWidget *parent)
+{
+    if ( !_isPaused() ) _pause();
+    _showHighscores(parent);
+}
+
+void BaseInterface::_showHighscores(QWidget *parent)
+{
+    KExtHighscore::show(parent);
+}
diff --git a/libksirtet/base/inter.h b/libksirtet/base/inter.h
new file mode 100644
index 00000000..446a77d3
--- /dev/null
+++ b/libksirtet/base/inter.h
@@ -0,0 +1,23 @@
+#ifndef BASE_INTER_H
+#define BASE_INTER_H
+
+class QWidget;
+
+
+class BaseInterface
+{
+public:
+    BaseInterface() {}
+    virtual ~BaseInterface() {}
+
+    virtual void _start() = 0;
+    virtual void _pause() = 0;
+    virtual bool _isPaused() const = 0;
+
+    void showHighscores(QWidget *parent);
+
+protected:
+    virtual void _showHighscores(QWidget *parent);
+};
+
+#endif
diff --git a/libksirtet/base/kzoommainwindow.cpp b/libksirtet/base/kzoommainwindow.cpp
new file mode 100644
index 00000000..115d5175
--- /dev/null
+++ b/libksirtet/base/kzoommainwindow.cpp
@@ -0,0 +1,115 @@
+/*
+    This file is part of the KDE games library
+    Copyright (C) 2004 Nicolas Hadacek (hadacek@kde.org)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License version 2 as published by the Free Software Foundation.
+
+    This library 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
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#include "kzoommainwindow.h"
+#include "kzoommainwindow.moc"
+
+#include <kaction.h>
+#include <kstdaction.h>
+#include <kmenubar.h>
+#include <kcmenumngr.h>
+
+KZoomMainWindow::KZoomMainWindow(uint min, uint max, uint step, const char *name)
+  : KMainWindow(0, name), _zoomStep(step), _minZoom(min), _maxZoom(max)
+{
+  installEventFilter(this);
+  
+  _zoomInAction = KStdAction::zoomIn(this, SLOT(zoomIn()), actionCollection());
+  _zoomOutAction =
+    KStdAction::zoomOut(this, SLOT(zoomOut()), actionCollection());
+  _menu =
+    KStdAction::showMenubar(this, SLOT(toggleMenubar()), actionCollection());
+}
+
+void KZoomMainWindow::init(const char *popupName)
+{
+  // zoom
+  setZoom(readZoomSetting());
+
+  // menubar
+  _menu->setChecked( menubarVisibleSetting() );  
+  toggleMenubar();
+  
+  // context popup
+  if (popupName) {
+    QPopupMenu *popup =
+      static_cast<QPopupMenu *>(factory()->container(popupName, this));
+    Q_ASSERT(popup);
+    if (popup) KContextMenuManager::insert(this, popup);
+  }
+}
+
+void KZoomMainWindow::addWidget(QWidget *widget)
+{
+  widget->adjustSize();
+  QWidget *tlw = widget->topLevelWidget();
+  KZoomMainWindow *zm = 
+    static_cast<KZoomMainWindow *>(tlw->qt_cast("KZoomMainWindow"));
+  Q_ASSERT(zm);
+  zm->_widgets.append(widget);
+  connect(widget, SIGNAL(destroyed()), zm, SLOT(widgetDestroyed()));
+}
+
+void KZoomMainWindow::widgetDestroyed()
+{
+  _widgets.remove(static_cast<const QWidget *>(sender()));
+}
+
+bool KZoomMainWindow::eventFilter(QObject *o, QEvent *e)
+{
+  if ( e->type()==QEvent::LayoutHint )
+    setFixedSize(minimumSize()); // because K/QMainWindow
+                                 // does not manage fixed central widget
+                                 // with hidden menubar...
+  return KMainWindow::eventFilter(o, e);
+}
+
+void KZoomMainWindow::setZoom(uint zoom)
+{
+  _zoom = zoom;
+  writeZoomSetting(_zoom);
+  QPtrListIterator<QWidget> it(_widgets);
+  for (; it.current(); ++it)
+    (*it)->adjustSize();; 
+  _zoomOutAction->setEnabled( _zoom>_minZoom );
+  _zoomInAction->setEnabled( _zoom<_maxZoom );
+}
+
+void KZoomMainWindow::zoomIn()
+{
+  setZoom(_zoom + _zoomStep);
+}
+
+void KZoomMainWindow::zoomOut()
+{
+  Q_ASSERT( _zoom>=_zoomStep );
+  setZoom(_zoom - _zoomStep);
+}
+
+void KZoomMainWindow::toggleMenubar()
+{
+  if ( _menu->isChecked() ) menuBar()->show();
+  else menuBar()->hide();
+}
+
+bool KZoomMainWindow::queryExit()
+{
+  writeMenubarVisibleSetting(_menu->isChecked());
+  return KMainWindow::queryExit();
+}
diff --git a/libksirtet/base/kzoommainwindow.h b/libksirtet/base/kzoommainwindow.h
new file mode 100644
index 00000000..14f780fb
--- /dev/null
+++ b/libksirtet/base/kzoommainwindow.h
@@ -0,0 +1,128 @@
+/*
+    This file is part of the KDE games library
+    Copyright (C) 2004 Nicolas Hadacek (hadacek@kde.org)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License version 2 as published by the Free Software Foundation.
+
+    This library 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
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#ifndef KZOOMMAINWINDOW_H
+#define KZOOMMAINWINDOW_H
+
+#include <kmainwindow.h>
+#include <kdemacros.h>
+
+
+class KToggleAction;
+
+/**
+ * KZoomMainWindow is a main window of fixed size. Its size can be
+ * modified with the "zoom in"/"zoom out" actions.
+ *
+ * It manages one or several widgets: their adjustSize() method is
+ * called whenever the zoom level is changed.
+ * The usual implementation for those widget is to redefine adjustSize()
+ * with code like:
+ * /code
+ * setFixedSize(newsize);
+ * /endcode
+ *
+ * This class also has a "show/hide menubar" action and allows the use
+ * of a context popup menu (useful to restore the menubar when hidden).
+ */
+class KDE_EXPORT KZoomMainWindow : public KMainWindow
+{
+  Q_OBJECT
+public:
+  /** Constructor. */
+  KZoomMainWindow(uint minZoom, uint maxZoom, uint zoomStep,
+                  const char *name = 0);
+
+  /** Add a widget to be managed i.e. the adjustSize() method of the
+   * widget is called whenever the zoom is changed.
+   * This function assumes that the topLevelWidget() is the KZoomMainWindow.
+   */
+  static void addWidget(QWidget *widget);
+                  
+  uint zoom() const { return _zoom; }
+  
+public slots:
+  void zoomIn();
+  void zoomOut();
+  void toggleMenubar();
+
+protected:
+  /** You need to call this after the createGUI or setupGUI method
+   * is called.
+   * @param popupName is the name of the context popup menu as defined in
+   * the ui.rc file.
+   */
+  void init(const char *popupName = 0);
+    
+  virtual void setZoom(uint zoom);
+  virtual bool eventFilter(QObject *o, QEvent *e);
+  virtual bool queryExit();
+  
+  /** You need to implement this method since different application
+   * use different setting class names and keys.
+   * Use something like:
+   * /code
+   * Settings::setZoom(zoom);
+   * Settings::writeConfig();
+   * /endcode
+   */
+  virtual void writeZoomSetting(uint zoom) = 0;
+  
+  /** Youneed to implement this method since different application
+   * use different setting class names and keys.
+   * Use something like:
+   * /code
+   * return Settings::zoom();
+   * /endcode
+   */
+  virtual uint readZoomSetting() const = 0;
+  
+  /** You need to implement this method since different application
+   * use different setting class names and keys.
+   * Use something like:
+   * /code
+   * Settings::setMenubarVisible(visible);
+   * Settings::writeConfig();
+   * /endcode
+   */
+  virtual void writeMenubarVisibleSetting(bool visible) = 0;
+  
+  /** You need to implement this method since different application
+   * use different setting class names and keys.
+   * Use something like: 
+   * /code
+   * Settings::menubarVisible();
+   * /endcode
+   */
+  virtual bool menubarVisibleSetting() const = 0;
+
+private slots:
+  void widgetDestroyed();
+  
+private:
+  uint _zoom, _zoomStep, _minZoom, _maxZoom;
+  QPtrList<QWidget> _widgets;
+  KAction *_zoomInAction, *_zoomOutAction;
+  KToggleAction *_menu;
+  
+  class KZoomMainWindowPrivate;
+  KZoomMainWindowPrivate *d;
+};
+
+#endif
diff --git a/libksirtet/base/libksirtet1.kcfg b/libksirtet/base/libksirtet1.kcfg
new file mode 100644
index 00000000..684de57f
--- /dev/null
+++ b/libksirtet/base/libksirtet1.kcfg
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<kcfg xmlns="http://www.kde.org/standards/kcfg/1.0"
+      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+      xsi:schemaLocation="http://www.kde.org/standards/kcfg/1.0
+      http://www.kde.org/standards/kcfg/1.0/kcfg.xsd" >
+  <include>factory.h</include>
+  <include>piece.h</include>
+  <group name="Options">
+    <entry name="BlockSize" type="Int" key="block size">
+      <label>Size of the blocks.</label>
+      <min>4</min>
+      <max>100</max>
+      <default>15</default>
+    </entry>
+    <entry name="FadeIntensity" type="Double" key="fade intensity">
+      <label>Fade intensity.</label>
+      <default>1.0</default>
+    </entry>
+    <entry name="FadeColor" type="Color" key="fade color">
+      <label>Fade color.</label>
+      <default>black</default>
+    </entry>
+    <entry name="AnimationsEnabled" type="Bool" key="enable animations">
+      <label>Animations enabled.</label>
+      <default>true</default>
+    </entry>
+    <entry name="MenubarVisible" type="Bool" key="menubar visible">
+      <label>Menubar visible.</label>
+      <default>true</default>
+    </entry>
+    <entry name="Color$(Number)" type="Color" key="color #$(Number)">
+      <parameter name="Number" type="Int" max="10"/>
+      <label>Block colors.</label>
+<!-- TODO: max, default is dynamic -->
+      <default code="true">Piece::info().defaultColor($(Number))</default>
+    </entry>
+  </group>
+</kcfg>
diff --git a/libksirtet/base/main.cpp b/libksirtet/base/main.cpp
new file mode 100644
index 00000000..4b5a4160
--- /dev/null
+++ b/libksirtet/base/main.cpp
@@ -0,0 +1,131 @@
+#include "main.h"
+#include "main.moc"
+
+#include <kaction.h>
+#include <kstdaction.h>
+#include <kmenubar.h>
+#include <kstdgameaction.h>
+#include <kcmenumngr.h>
+#include <kkeydialog.h>
+#include <klocale.h>
+#include <knotifyclient.h>
+#include <knotifydialog.h>
+#include <kexthighscore.h>
+#include <kconfigdialog.h>
+
+#include "inter.h"
+#include "factory.h"
+#include "settings.h"
+#include "baseprefs.h"
+
+BaseMainWindow::BaseMainWindow()
+  : KZoomMainWindow(4, 100, 1, "main_window")
+{
+    KNotifyClient::startDaemon();
+
+    // File & Popup
+    KStdGameAction::gameNew(this, SLOT(start()), actionCollection());
+    _pause = KStdGameAction::pause(this, SLOT(pause()), actionCollection());
+    _pause->setEnabled(false);
+    KStdGameAction::highscores(this, SLOT(showHighscores()),
+                               actionCollection());
+    KStdGameAction::quit(qApp, SLOT(quit()), actionCollection());
+
+    // Settings
+    KStdAction::preferences(this, SLOT(configureSettings()),
+                            actionCollection());
+    KStdAction::keyBindings(this, SLOT(configureKeys()), actionCollection());
+    KStdAction::configureNotifications(this, SLOT(configureNotifications()),
+                                       actionCollection());
+    KStdGameAction::configureHighscores(this, SLOT(configureHighscores()),
+                                        actionCollection());
+
+    _inter = bfactory->createInterface(this);
+}
+
+void BaseMainWindow::buildGUI(QWidget *widget)
+{
+    createGUI();
+    setCentralWidget(widget);
+    init("popup");
+}
+
+BaseMainWindow::~BaseMainWindow()
+{
+    delete _inter;
+}
+
+void BaseMainWindow::showHighscores()
+{
+    _inter->showHighscores(this);
+}
+
+void BaseMainWindow::start()
+{
+    _inter->_start();
+}
+
+void BaseMainWindow::pause()
+{
+    _inter->_pause();
+}
+
+void BaseMainWindow::configureHighscores()
+{
+    KExtHighscore::configure(this);
+}
+
+void BaseMainWindow::configureSettings()
+{
+    if ( !_inter->_isPaused() ) _inter->_pause();
+    if ( KConfigDialog::showDialog("settings") ) return;
+
+    KConfigDialog *dialog = new KConfigDialog(this, "settings", BasePrefs::self() );
+    QWidget *w = bfactory->createGameConfig();
+    if (w) dialog->addPage(w, i18n("Game"), "package_system");
+    w = bfactory->createAppearanceConfig();
+    if (w) dialog->addPage(w, i18n("Appearance"), "style");
+    w = bfactory->createColorConfig();
+    if (w) dialog->addPage(w, i18n("Colors"), "colorize");
+//    dialog->addPage(new BackgroundConfigWidget, i18n("Background"), "background");
+    addConfig(dialog);
+    connect(dialog, SIGNAL(settingsChanged()), SIGNAL(settingsChanged()));
+    dialog->show();
+}
+
+void BaseMainWindow::configureKeys()
+{
+    KKeyDialog d(true, this);
+    addKeys(d);
+    d.insert(actionCollection());
+    d.configure(false);
+    actionCollection()->writeShortcutSettings();
+    saveKeys();
+}
+
+void BaseMainWindow::configureNotifications()
+{
+    KNotifyDialog::configure(this);
+}
+
+void BaseMainWindow::writeZoomSetting(uint zoom)
+{
+  BasePrefs::setBlockSize(zoom);
+  BasePrefs::writeConfig();
+}
+
+uint BaseMainWindow::readZoomSetting() const
+{
+  return BasePrefs::blockSize();
+}
+
+void BaseMainWindow::writeMenubarVisibleSetting(bool visible)
+{
+  BasePrefs::setMenubarVisible(visible);
+  BasePrefs::writeConfig();
+}
+
+bool BaseMainWindow::menubarVisibleSetting() const
+{
+  return BasePrefs::menubarVisible();
+}
diff --git a/libksirtet/base/main.h b/libksirtet/base/main.h
new file mode 100644
index 00000000..d2e108aa
--- /dev/null
+++ b/libksirtet/base/main.h
@@ -0,0 +1,49 @@
+#ifndef BASE_MAIN_H
+#define BASE_MAIN_H
+
+#include "kzoommainwindow.h"
+
+#include <kdemacros.h>
+
+class BaseInterface;
+class KToggleAction;
+class KKeyDialog;
+class KConfigDialog;
+
+class KDE_EXPORT BaseMainWindow : public KZoomMainWindow
+{
+    Q_OBJECT
+public:
+    BaseMainWindow();
+    virtual ~BaseMainWindow();
+
+signals:
+    void settingsChanged();
+
+private slots:
+    void start();
+    void pause();
+    void showHighscores();
+    void configureSettings();
+    void configureKeys();
+    void configureHighscores();
+    void configureNotifications();
+
+protected:
+    BaseInterface     *_inter;
+
+    void buildGUI(QWidget *widget);
+    virtual void addConfig(KConfigDialog *) {}
+    virtual void addKeys(KKeyDialog &) {}
+    virtual void saveKeys() {}
+    
+    virtual void writeZoomSetting(uint zoom);
+    virtual uint readZoomSetting() const;
+    virtual void writeMenubarVisibleSetting(bool visible);
+    virtual bool menubarVisibleSetting() const;
+
+private:
+    KToggleAction *_pause;
+};
+
+#endif
diff --git a/libksirtet/base/piece.cpp b/libksirtet/base/piece.cpp
new file mode 100644
index 00000000..25aed934
--- /dev/null
+++ b/libksirtet/base/piece.cpp
@@ -0,0 +1,274 @@
+#include "piece.h"
+
+#include <kglobal.h>
+#include <krandomsequence.h>
+
+#include "baseprefs.h"
+
+using namespace KGrid2D;
+
+QPoint operator *(const Coord &c, int i)
+{
+    return QPoint(c.first * i, c.second * i);
+}
+
+//-----------------------------------------------------------------------------
+GPieceInfo::GPieceInfo()
+{
+	Piece::setPieceInfo(this);
+}
+
+QPixmap *GPieceInfo::pixmap(uint blockSize, uint blockType, uint blockMode,
+                            bool lighted) const
+{
+    QPixmap *pixmap = new QPixmap(blockSize, blockSize);
+    draw(pixmap, blockType, blockMode, lighted);
+    setMask(pixmap, blockMode);
+    return pixmap;
+}
+
+Coord GPieceInfo::maxSize() const
+{
+    Coord min, max;
+    Coord size(0, 0);
+	for (uint n=0; n<nbForms(); n++) {
+        min = max = Coord(i(n, 0)[0], j(n, 0)[0]);
+        for (uint k=0; k<nbBlocks(); k++) {
+            Coord tmp = Coord(i(n, 0)[k], j(n, 0)[k]);
+            max = maximum(max, tmp);
+            min = minimum(min, tmp);
+        }
+        size = maximum(size, max - min);
+    }
+    return size;
+}
+
+uint GPieceInfo::generateType(KRandomSequence *random) const
+{
+    return random->getLong( nbTypes() );
+}
+
+uint GPieceInfo::generateGarbageBlockType(KRandomSequence *random) const
+{
+    return nbNormalBlockTypes() + random->getLong( nbGarbageBlockTypes() );
+}
+
+void GPieceInfo::loadColors()
+{
+    _colors.resize(nbColors());
+    for (uint i=0; i<_colors.size(); i++)
+        _colors[i] = BasePrefs::color(i);
+}
+
+
+//-----------------------------------------------------------------------------
+SequenceArray::SequenceArray()
+: _size(0)
+{
+    const GPieceInfo &pinfo = Piece::info();
+    fill(0, pinfo.nbNormalBlockTypes() + pinfo.nbGarbageBlockTypes());
+}
+
+void SequenceArray::setBlockSize(uint bsize)
+{
+    _size = bsize;
+    const GPieceInfo &pinfo = Piece::info();
+    QPtrList<QPixmap> pixmaps;
+    pixmaps.setAutoDelete(TRUE);
+    QPtrList<QPoint> points;
+    points.setAutoDelete(TRUE);
+    uint nm = pinfo.nbBlockModes();
+    for (uint i=0; i<size(); i++) {
+        for (uint k=0; k<2; k++)
+            for (uint j=0; j<nm; j++) {
+                QPoint *po = new QPoint(0, 0);
+                QPixmap *pi = pinfo.pixmap(bsize, i, j, k==1);
+                if ( at(i) ) {
+                    at(i)->setImage(k*nm + j, new QCanvasPixmap(*pi, *po));
+                    delete po;
+                    delete pi;
+                } else {
+                    points.append(po);
+                    pixmaps.append(pi);
+                }
+            }
+        if ( at(i)==0 ) {
+            at(i) = new QCanvasPixmapArray(pixmaps, points);
+            pixmaps.clear();
+            points.clear();
+        }
+    }
+}
+
+SequenceArray::~SequenceArray()
+{
+	for (uint i=0; i<size(); i++) delete at(i);
+}
+
+//-----------------------------------------------------------------------------
+BlockInfo::BlockInfo(const SequenceArray &s)
+: _sequences(s)
+{}
+
+QPoint BlockInfo::toPoint(const Coord &pos) const
+{
+	return pos * _sequences.blockSize();
+}
+
+//-----------------------------------------------------------------------------
+Block::Block(uint value)
+: _value(value), _sprite(0)
+{}
+
+Block::~Block()
+{
+	delete _sprite;
+}
+
+void Block::setValue(uint value, BlockInfo *binfo)
+{
+	_value = value;
+	if (binfo) {
+		QCanvasPixmapArray *seq = binfo->sequences()[value];
+		if (_sprite) _sprite->setSequence(seq);
+		else {
+			_sprite = new QCanvasSprite(seq, binfo);
+			_sprite->setZ(0);
+		}
+	}
+}
+
+void Block::toggleLight()
+{
+	const GPieceInfo &pinfo = Piece::info();
+	uint f = _sprite->frame() + pinfo.nbBlockModes()
+		* (_sprite->frame()>=(int)pinfo.nbBlockModes() ? -1 : 1);
+	_sprite->setFrame(f);
+}
+
+bool Block::isGarbage() const
+{
+	return Piece::info().isGarbage(_value);
+}
+
+
+//-----------------------------------------------------------------------------
+GPieceInfo *Piece::_info = 0;
+
+Piece::Piece()
+    : _binfo(0), _i(0), _j(0)
+{
+    _blocks.setAutoDelete(true);
+}
+
+void Piece::rotate(bool left, const QPoint &p)
+{
+    if (left) {
+        if ( _rotation==0 ) _rotation = 3;
+        else _rotation--;
+    } else {
+        if ( _rotation==3 ) _rotation = 0;
+        else _rotation++;
+    }
+
+    uint form = _info->form(_type);
+    _i = _info->i(form, _rotation);
+    _j = _info->j(form, _rotation);
+    if (_binfo) move(p);
+}
+
+Coord Piece::min() const
+{
+    if ( _i==0 || _j==0 ) return Coord(0, 0);
+    Coord min = coord(0);
+    for(uint k=1; k<_info->nbBlocks(); k++)
+        min = minimum(min, coord(k));
+    return min;
+}
+
+Coord Piece::max() const
+{
+    if ( _i==0 || _j==0 ) return Coord(0, 0);
+    Coord max = coord(0);
+    for(uint k=1; k<_info->nbBlocks(); k++)
+        max = maximum(max, coord(k));
+    return max;
+}
+
+void Piece::copy(const Piece *p)
+{
+    if ( p->_blocks.size()!=0 ) {
+        _blocks.resize(p->_blocks.size());
+        for (uint k=0; k<_blocks.size(); k++) {
+            if ( _blocks[k]==0 ) _blocks.insert(k, new Block);
+            _blocks[k]->setValue(p->_blocks[k]->value(), _binfo);
+        }
+    }
+    _type = p->_type;
+    _random = p->_random;
+    _rotation = p->_rotation;
+    _i = p->_i;
+    _j = p->_j;
+}
+
+void Piece::generateNext(int type)
+{
+    if ( _blocks.size()==0 ) {
+        _blocks.resize(_info->nbBlocks());
+        for (uint k=0; k<_blocks.size(); k++) _blocks.insert(k, new Block);
+    }
+    _type = (type==-1 ? _info->generateType(_random) : (uint)type );
+    _rotation = 0;
+
+    uint form = _info->form(_type);
+    _i = _info->i(form, _rotation);
+    _j = _info->j(form, _rotation);
+
+    for (uint k=0; k<_blocks.size(); k++)
+        _blocks[k]->setValue(_info->value(_type, k), _binfo);
+}
+
+void Piece::moveCenter()
+{
+    uint s = _binfo->sequences().blockSize();
+    QPoint p = QPoint(_binfo->width(), _binfo->height()) - size() * s;
+    move(p/2 - min() * s);
+}
+
+Coord Piece::pos(uint k, const Coord &pos) const
+{
+    return Coord(pos.first + coord(k).first, pos.second - coord(k).second);
+}
+
+void Piece::move(const QPoint &p)
+{
+    for (uint k=0; k<_blocks.size(); k++) moveBlock(k, p);
+}
+
+void Piece::moveBlock(uint k, const QPoint &p)
+{
+    QPoint po = p + _binfo->toPoint(coord(k));
+    _blocks[k]->sprite()->move(po.x(), po.y());
+}
+
+Block *Piece::garbageBlock() const
+{
+    Block *b = new Block;
+    b->setValue(_info->generateGarbageBlockType(_random), _binfo);
+    return b;
+}
+
+Block *Piece::takeBlock(uint k)
+{
+    Block *b = _blocks.take(k);
+    _blocks.insert(k, new Block);
+    return b;
+}
+
+void Piece::show(bool show)
+{
+    for (uint k=0; k<_blocks.size(); k++) {
+        if (show) _blocks[k]->sprite()->show();
+        else _blocks[k]->sprite()->hide();
+    }
+}
diff --git a/libksirtet/base/piece.h b/libksirtet/base/piece.h
new file mode 100644
index 00000000..4c0486a8
--- /dev/null
+++ b/libksirtet/base/piece.h
@@ -0,0 +1,155 @@
+#ifndef BASE_PIECE_H
+#define BASE_PIECE_H
+
+#include <qcanvas.h>
+#include <qptrvector.h>
+
+#include <kgrid2d.h>
+
+
+class KRandomSequence;
+
+//-----------------------------------------------------------------------------
+class GPieceInfo
+{
+ public:
+    GPieceInfo();
+    virtual ~GPieceInfo() {}
+
+    virtual uint nbBlocks() const = 0; // nb of blocks in a piece
+    virtual uint nbTypes() const  = 0; // nb of combin. of types in piece
+    virtual uint nbForms() const  = 0; // nb of geometrical form of piece
+
+    virtual const int *i(uint form, uint rotation) const = 0;
+    virtual const int *j(uint form, uint rotation) const = 0;
+    virtual uint value(uint type, uint n) const          = 0;
+    virtual uint form(uint type) const                   = 0;
+    virtual uint nbConfigurations(uint type) const       = 0;
+    uint generateType(KRandomSequence *) const;
+
+    KGrid2D::Coord maxSize() const;
+
+    QPixmap *pixmap(uint blockSize, uint blockType, uint blockMode,
+                    bool lighted) const;
+
+    virtual uint nbNormalBlockTypes() const  = 0;
+    virtual uint nbGarbageBlockTypes() const = 0;
+    virtual uint nbBlockModes() const        = 0; // nb of modes per block
+    bool isGarbage(uint type) const { return type>=nbNormalBlockTypes(); }
+    uint generateGarbageBlockType(KRandomSequence *) const;
+
+    virtual uint nbColors() const = 0;
+    virtual QString colorLabel(uint i) const = 0;
+    QCString colorKey(uint i) const;
+    virtual QColor defaultColor(uint i) const = 0;
+    void loadColors();
+
+ protected:
+    QColor color(uint i) const { return _colors[i]; }
+
+    virtual void draw(QPixmap *, uint blockType, uint blockMode,
+                      bool lighted) const = 0;
+    virtual void setMask(QPixmap *, uint /*blockMode*/) const {}
+
+ private:
+    QValueVector<QColor> _colors;
+};
+
+class SequenceArray : public QMemArray<QCanvasPixmapArray *>
+{
+ public:
+	SequenceArray();
+	~SequenceArray();
+
+	void setBlockSize(uint size);
+    uint blockSize() const { return _size; }
+
+ private:
+	uint _size;
+};
+
+//-----------------------------------------------------------------------------
+class BlockInfo : public QCanvas
+{
+ public:
+    BlockInfo(const SequenceArray &);
+    const SequenceArray &sequences() const { return _sequences; }
+
+    QPoint toPoint(const KGrid2D::Coord &) const;
+
+ private:
+    const SequenceArray &_sequences;
+};
+
+//-----------------------------------------------------------------------------
+class Block
+{
+ public:
+    Block(uint value = 0);
+    ~Block();
+
+    void setValue(uint, BlockInfo *);
+    uint value() const { return _value; }
+    bool isGarbage() const;
+    void toggleLight();
+    QCanvasSprite *sprite() const { return _sprite; }
+
+ private:
+    uint           _value;
+    QCanvasSprite *_sprite;
+
+    Block(const Block &);             // disabled
+    Block &operator =(const Block &); // disabled
+};
+
+//-----------------------------------------------------------------------------
+class Piece
+{
+ public:
+    Piece();
+
+    void copy(const Piece *);
+    void setBlockInfo(BlockInfo *bi)         { _binfo = bi; }
+    static void setPieceInfo(GPieceInfo *pi) { _info = pi; }
+    static GPieceInfo &info()                { return *_info; }
+
+    uint type() const             { return _type; }
+    uint nbBlocks() const         { return _blocks.size(); }
+    uint nbConfigurations() const { return _info->nbConfigurations(_type); }
+
+    int value(uint k) const       { return _blocks[k]->value(); }
+    KGrid2D::Coord pos(uint k, const KGrid2D::Coord &) const;
+
+    KGrid2D::Coord min() const;
+    KGrid2D::Coord max() const;
+    KGrid2D::Coord size() const { return max() - min() + KGrid2D::Coord(1, 1); }
+
+    void generateNext(int type = -1);
+    void rotate(bool left, const QPoint &);
+    void move(const QPoint &);
+    void moveCenter();
+    void show(bool show);
+
+    void setRandomSequence(KRandomSequence *random) { _random = random; }
+
+    Block *garbageBlock() const;
+    Block *takeBlock(uint k);
+
+ private:
+    QPtrVector<Block>  _blocks;
+    uint               _type;
+    KRandomSequence   *_random;
+    static GPieceInfo *_info;
+    BlockInfo         *_binfo;
+    uint               _rotation;
+    int const         *_i;
+    int const         *_j;
+
+    Piece(const Piece &);             // disabled
+    Piece &operator =(const Piece &); // disabled
+
+    KGrid2D::Coord coord(uint k) const { return KGrid2D::Coord(_i[k], _j[k]); }
+    void moveBlock(uint k, const QPoint &);
+};
+
+#endif
diff --git a/libksirtet/base/settings.cpp b/libksirtet/base/settings.cpp
new file mode 100644
index 00000000..1ea3b16a
--- /dev/null
+++ b/libksirtet/base/settings.cpp
@@ -0,0 +1,84 @@
+#include "settings.h"
+#include "settings.moc"
+
+#include <qlabel.h>
+#include <qhbox.h>
+#include <qlayout.h>
+#include <qcheckbox.h>
+#include <qhgroupbox.h>
+
+#include <klocale.h>
+#include <knuminput.h>
+#include <kcolorbutton.h>
+#include <kapplication.h>
+#include <kdialogbase.h>
+
+#include "piece.h"
+#include "factory.h"
+
+
+//-----------------------------------------------------------------------------
+BaseAppearanceConfig::BaseAppearanceConfig()
+    : QWidget(0, "appearance_config")
+{
+    QVBoxLayout *top = new QVBoxLayout(this);
+
+    // upper part
+    _main = new QWidget(this);
+    top->addWidget(_main);
+    _grid = new QGridLayout(_main, 3, 2, 0, KDialog::spacingHint());
+    _grid->setColStretch(1, 1);
+
+    QCheckBox *chb =
+        new QCheckBox(i18n("Enable animations"), _main, "kcfg_AnimationsEnabled");
+    _grid->addMultiCellWidget(chb, 2, 2, 0, 1);
+
+    top->addSpacing(KDialog::spacingHint());
+
+    // lower part
+    QHGroupBox *gbox = new QHGroupBox(i18n("Background"), this);
+    top->addWidget(gbox);
+    QWidget *widget = new QWidget(gbox);
+    QGridLayout *grid =
+        new QGridLayout(widget, 2, 3, 0, KDialog::spacingHint());
+    grid->setColStretch(2, 1);
+    QLabel *label = new QLabel(i18n("Color:"), widget);
+    grid->addWidget(label, 0, 0);
+    KColorButton *cob = new KColorButton(widget, "kcfg_FadeColor");
+    cob->setFixedWidth(100);
+    grid->addWidget(cob, 0, 1);
+    label = new QLabel(i18n("Opacity:"), widget);
+    grid->addWidget(label, 1, 0);
+    KDoubleNumInput *dn = new KDoubleNumInput(widget, "kcfg_FadeIntensity");
+    dn->setRange(0.0, 1.0, 0.01);
+    grid->addMultiCellWidget(dn, 1, 1, 1, 2);
+
+    top->addStretch(1);
+}
+
+//-----------------------------------------------------------------------------
+ColorConfig::ColorConfig()
+    : QWidget(0, "color_config")
+{
+    const GPieceInfo &info = Piece::info();
+    QVBoxLayout *top = new QVBoxLayout(this);
+    uint nb = info.nbColors();
+    QGridLayout *grid = new QGridLayout(top, nb+1, 3, KDialog::spacingHint());
+    grid->setColStretch(2, 1);
+    for (uint i=0; i<nb; i++) {
+        QLabel *label = new QLabel(info.colorLabel(i), this);
+        grid->addWidget(label, i, 0);
+        KColorButton *cob = new KColorButton(this, colorKey(i));
+        cob->setFixedWidth(100);
+        grid->addWidget(cob, i, 1);
+    }
+    grid->setRowStretch(nb, 1);
+}
+
+QCString ColorConfig::colorKey(uint i)
+{
+    QCString s;
+    s.setNum(i);
+    return "kcfg_Color" + s;
+}
+
diff --git a/libksirtet/base/settings.h b/libksirtet/base/settings.h
new file mode 100644
index 00000000..c64bfd5b
--- /dev/null
+++ b/libksirtet/base/settings.h
@@ -0,0 +1,33 @@
+#ifndef BASE_SETTINGS_H
+#define BASE_SETTINGS_H
+
+#include <qwidget.h>
+#include <kconfig.h>
+
+class QGridLayout;
+
+
+//-----------------------------------------------------------------------------
+class BaseAppearanceConfig : public QWidget
+{
+    Q_OBJECT
+public:
+    BaseAppearanceConfig();
+
+protected:
+    QWidget     *_main;
+    QGridLayout *_grid;
+};
+
+//-----------------------------------------------------------------------------
+class ColorConfig : public QWidget
+{
+    Q_OBJECT
+public:
+    ColorConfig();
+
+private:
+    static QCString colorKey(uint i);
+};
+
+#endif