diff --git a/src/jrummikub/control/turn/HumanTurnControl.java b/src/jrummikub/control/turn/HumanTurnControl.java
index 7b2588e..f13b3a2 100644
--- a/src/jrummikub/control/turn/HumanTurnControl.java
+++ b/src/jrummikub/control/turn/HumanTurnControl.java
@@ -110,12 +110,13 @@ public class HumanTurnControl extends AbstractTurnControl {
 					}
 				}));
 
-		connections.add(view.getPlayerPanel().getRedealEvent().add(new IListener() {
-			@Override
-			public void handle() {
-				endOfTurn(true);
-			}
-		}));
+		connections.add(view.getPlayerPanel().getRedealEvent()
+				.add(new IListener() {
+					@Override
+					public void handle() {
+						endOfTurn(true);
+					}
+				}));
 	}
 
 	private void addHandPanelHandlers() {
@@ -233,9 +234,10 @@ public class HumanTurnControl extends AbstractTurnControl {
 
 		int i = 0;
 		for (Stone s : handStones) {
-			float x = Math.max(0,
+			double x = Math.max(0,
 					Math.min(13, pos.getX() - handStones.size() / 2.0f + i));
-			player.getHand().drop(s, new Position(x, (float) Math.floor(pos.getY())));
+			player.getHand().drop(s,
+					new Position(x, (float) Math.floor(pos.getY())));
 			selectedStones.remove(s);
 			i++;
 		}
@@ -432,13 +434,15 @@ public class HumanTurnControl extends AbstractTurnControl {
 				table.drop(joinedSet, newPos);
 			} else {
 				StoneSet joinedSet = new StoneSet(selectedStones).join(newSet);
-				table.drop(joinedSet,
-						new Position(newPos.getX() - selectedStones.size(), newPos.getY()));
+				table.drop(joinedSet, new Position(newPos.getX()
+						- selectedStones.size(), newPos.getY()));
 			}
 		} else {
-			table.drop(new StoneSet(selectedStones),
-					new Position(pos.getX() + (set.getSize() - selectedStones.size())
-							* 0.5f, pos.getY()));
+			table.drop(
+					new StoneSet(selectedStones),
+					new Position(pos.getX()
+							+ (set.getSize() - selectedStones.size()) * 0.5f,
+							pos.getY()));
 		}
 
 		selectedStones.clear();
@@ -533,7 +537,8 @@ public class HumanTurnControl extends AbstractTurnControl {
 	static class HandStonePositionComparator implements
 			Comparator<Pair<Stone, Position>> {
 		@Override
-		public int compare(Pair<Stone, Position> pair1, Pair<Stone, Position> pair2) {
+		public int compare(Pair<Stone, Position> pair1,
+				Pair<Stone, Position> pair2) {
 			Position pos1 = pair1.getSecond(), pos2 = pair2.getSecond();
 			if (pos1.getY() < pos2.getY()) {
 				return -1;
diff --git a/src/jrummikub/model/Hand.java b/src/jrummikub/model/Hand.java
index b6d9eb4..812a4e4 100644
--- a/src/jrummikub/model/Hand.java
+++ b/src/jrummikub/model/Hand.java
@@ -43,10 +43,10 @@ public class Hand extends StoneTray<Stone> implements IHand {
 	}
 
 	@Override
-	protected Pair<Position, Direction> fixInvalidDrop(Stone stone, Position pos,
-			Direction dir) {
-		float x = pos.getX();
-		float y = pos.getY();
+	protected Pair<Position, Direction> fixInvalidDrop(Stone stone,
+			Position pos, Direction dir) {
+		double x = pos.getX();
+		double y = pos.getY();
 
 		if (x >= 0 && x <= WIDTH - 1) {
 			return null;
@@ -55,9 +55,11 @@ public class Hand extends StoneTray<Stone> implements IHand {
 			return new Pair<Position, Direction>(new Position(0, y), RIGHT);
 		} else {
 			if (getFreeRowSpace((int) y) == 0) {
-				return new Pair<Position, Direction>(new Position(0, y + 1), RIGHT);
+				return new Pair<Position, Direction>(new Position(0, y + 1),
+						RIGHT);
 			} else {
-				return new Pair<Position, Direction>(new Position(WIDTH - 1, y), LEFT);
+				return new Pair<Position, Direction>(
+						new Position(WIDTH - 1, y), LEFT);
 			}
 		}
 	}
@@ -83,7 +85,8 @@ public class Hand extends StoneTray<Stone> implements IHand {
 
 		List<Stone> stones = new ArrayList<Stone>();
 
-		for (Iterator<Pair<Stone, Position>> iter = this.iterator(); iter.hasNext();) {
+		for (Iterator<Pair<Stone, Position>> iter = this.iterator(); iter
+				.hasNext();) {
 			stones.add(iter.next().getFirst());
 		}
 
@@ -101,7 +104,8 @@ public class Hand extends StoneTray<Stone> implements IHand {
 	public int getIdenticalStoneCount() {
 		List<Stone> stones = new ArrayList<Stone>();
 
-		for (Iterator<Pair<Stone, Position>> iter = this.iterator(); iter.hasNext();) {
+		for (Iterator<Pair<Stone, Position>> iter = this.iterator(); iter
+				.hasNext();) {
 			stones.add(iter.next().getFirst());
 		}
 
diff --git a/src/jrummikub/model/Position.java b/src/jrummikub/model/Position.java
index 7396120..47c6c89 100644
--- a/src/jrummikub/model/Position.java
+++ b/src/jrummikub/model/Position.java
@@ -7,8 +7,8 @@ package jrummikub.model;
 
 public class Position {
 
-	private float x;
-	private float y;
+	private double x;
+	private double y;
 
 	/**
 	 * Create a new position by specifying the coordinates
@@ -18,7 +18,7 @@ public class Position {
 	 * @param y
 	 *          y coordinate
 	 */
-	public Position(float x, float y) {
+	public Position(double x, double y) {
 		this.x = x;
 		this.y = y;
 	}
@@ -28,7 +28,7 @@ public class Position {
 	 * 
 	 * @return x coordinate
 	 */
-	public float getX() {
+	public double getX() {
 		return x;
 	}
 
@@ -37,7 +37,7 @@ public class Position {
 	 * 
 	 * @return y coordinate
 	 */
-	public float getY() {
+	public double getY() {
 		return y;
 	}
 
@@ -55,9 +55,9 @@ public class Position {
 		if (getClass() != obj.getClass())
 			return false;
 		Position other = (Position) obj;
-		if (Float.floatToIntBits(x) != Float.floatToIntBits(other.x))
+		if (Double.doubleToLongBits(x) != Double.doubleToLongBits(other.x))
 			return false;
-		if (Float.floatToIntBits(y) != Float.floatToIntBits(other.y))
+		if (Double.doubleToLongBits(y) != Double.doubleToLongBits(other.y))
 			return false;
 		return true;
 	}
@@ -66,8 +66,8 @@ public class Position {
 	public int hashCode() {
 		final int prime = 31;
 		int result = 1;
-		result = prime * result + Float.floatToIntBits(x);
-		result = prime * result + Float.floatToIntBits(y);
+		result = (int) (prime * result + Double.doubleToLongBits(x));
+		result = (int) (prime * result + Double.doubleToLongBits(y));
 		return result;
 	}
 
diff --git a/src/jrummikub/model/StoneTray.java b/src/jrummikub/model/StoneTray.java
index c4230f2..1f59afa 100644
--- a/src/jrummikub/model/StoneTray.java
+++ b/src/jrummikub/model/StoneTray.java
@@ -100,17 +100,17 @@ public class StoneTray<E extends Sizeable> implements IStoneTray<E> {
 		return null;
 	}
 
-	private static boolean lessOrEqual(float x, float y) {
-		if (-0.000001f < y && y < 0.000001f) {
-			return (x < y + 0.000001f);
+	private static boolean lessOrEqual(double d, double e) {
+		if (-0.000001 < e && e < 0.000001) {
+			return (d < e + 0.000001);
 		}
 
-		float q = x / y;
-		if (0.999999f < q && q < 1.000001f) {
+		double q = d / e;
+		if (0.999999 < q && q < 1.000001) {
 			return true;
 		}
 
-		return x < y;
+		return d < e;
 	}
 
 	/** Tests whether two objects overlap **/
@@ -137,11 +137,11 @@ public class StoneTray<E extends Sizeable> implements IStoneTray<E> {
 	private Direction getMoveDirection(E object, Position position,
 			Pair<E, Position> blocking) {
 		boolean isVertical = getMoveOrientation(object, position, blocking);
-		float objectMidpointX = position.getX() + object.getWidth() / 2;
-		float objectMidpointY = position.getY() + object.getHeight() / 2;
-		float blockingMidpointX = blocking.getSecond().getX()
+		double objectMidpointX = position.getX() + object.getWidth() / 2;
+		double objectMidpointY = position.getY() + object.getHeight() / 2;
+		double blockingMidpointX = blocking.getSecond().getX()
 				+ blocking.getFirst().getWidth() / 2;
-		float blockingMidpointY = blocking.getSecond().getY()
+		double blockingMidpointY = blocking.getSecond().getY()
 				+ blocking.getFirst().getHeight() / 2;
 		if (isVertical) {
 			if (objectMidpointY < blockingMidpointY) {
@@ -165,20 +165,20 @@ public class StoneTray<E extends Sizeable> implements IStoneTray<E> {
 	 */
 	private boolean getMoveOrientation(E object, Position position,
 			Pair<E, Position> blocking) {
-		float objectRight = position.getX() + object.getWidth();
-		float blockingRight = blocking.getSecond().getX()
+		double objectRight = position.getX() + object.getWidth();
+		double blockingRight = blocking.getSecond().getX()
 				+ blocking.getFirst().getWidth();
-		float overlapRight = Math.min(objectRight, blockingRight);
-		float overlapLeft = Math.max(position.getX(), blocking.getSecond()
+		double overlapRight = Math.min(objectRight, blockingRight);
+		double overlapLeft = Math.max(position.getX(), blocking.getSecond()
 				.getX());
-		float overlapX = overlapRight - overlapLeft;
-		float objectBottom = position.getY() + object.getHeight();
-		float blockingBottom = blocking.getSecond().getY()
+		double overlapX = overlapRight - overlapLeft;
+		double objectBottom = position.getY() + object.getHeight();
+		double blockingBottom = blocking.getSecond().getY()
 				+ blocking.getFirst().getHeight();
-		float overlapBottom = Math.min(objectBottom, blockingBottom);
-		float overlapTop = Math.max(position.getY(), blocking.getSecond()
+		double overlapBottom = Math.min(objectBottom, blockingBottom);
+		double overlapTop = Math.max(position.getY(), blocking.getSecond()
 				.getY());
-		float overlapY = overlapBottom - overlapTop;
+		double overlapY = overlapBottom - overlapTop;
 		// vertical or horizontal Shift
 		// TODO magic factor
 		return overlapX > overlapY;
diff --git a/src/jrummikub/view/impl/AbstractStonePanel.java b/src/jrummikub/view/impl/AbstractStonePanel.java
index 765f6bc..ba3013c 100644
--- a/src/jrummikub/view/impl/AbstractStonePanel.java
+++ b/src/jrummikub/view/impl/AbstractStonePanel.java
@@ -174,7 +174,7 @@ abstract class AbstractStonePanel extends JPanel implements IStonePanel,
 		for (Pair<Stone, Position> entry : stones) {
 			Stone stone = entry.getFirst();
 			Position p = entry.getSecond();
-			Rectangle2D rect = new Rectangle2D.Float(p.getX(), p.getY(), 1, 1);
+			Rectangle2D rect = new Rectangle2D.Double(p.getX(), p.getY(), 1, 1);
 
 			if (rect.contains(pos.getX(), pos.getY()))
 				return stone;
diff --git a/src/jrummikub/view/impl/StonePainter.java b/src/jrummikub/view/impl/StonePainter.java
index 09b6dcc..ea52387 100644
--- a/src/jrummikub/view/impl/StonePainter.java
+++ b/src/jrummikub/view/impl/StonePainter.java
@@ -23,17 +23,17 @@ import jrummikub.model.StoneColor;
  * coordinates
  */
 class StonePainter {
-	private static final float ASPECT_RATIO = 0.75f;
-	private static final float DEFAULT_WIDTH = 40;
-	private static final float TEXT_POS = 0.275f;
-	private static final float FACE_WIDTH = 0.475f;
-	private static final float CIRCLE_POS = 0.725f;
-	private static final float CIRCLE_WIDTH = 0.45f;
+	private static final double ASPECT_RATIO = 0.75f;
+	private static final double DEFAULT_WIDTH = 40;
+	private static final double TEXT_POS = 0.275f;
+	private static final double FACE_WIDTH = 0.475f;
+	private static final double CIRCLE_POS = 0.725f;
+	private static final double CIRCLE_WIDTH = 0.45f;
 
 	private static final Color BACKGROUND_COLOR = new Color(0.9f, 0.9f, 0.6f);
 
-	private static final float BRIGHTER_SCALE = 1.15f;
-	private static final float HOVER_RATIO = 0.7f;
+	private static final double BRIGHTER_SCALE = 1.15f;
+	private static final double HOVER_RATIO = 0.7f;
 
 	private Map<StoneColor, Map<Integer, BufferedImage>> defaultStones;
 	private Map<StoneColor, Map<Integer, BufferedImage>> selectedStones;
@@ -43,15 +43,15 @@ class StonePainter {
 	/**
 	 * The width of one pixel in the scale of 1.0
 	 */
-	public static final float WIDTH_SCALE = 1 / DEFAULT_WIDTH;
+	public static final double WIDTH_SCALE = 1 / DEFAULT_WIDTH;
 	/**
 	 * The height of one pixel in the scale of 1.0
 	 */
-	public static final float HEIGHT_SCALE = ASPECT_RATIO / DEFAULT_WIDTH;
+	public static final double HEIGHT_SCALE = ASPECT_RATIO / DEFAULT_WIDTH;
 
-	private float scale;
+	private double scale;
 
-	private static int even(float f) {
+	private static int even(double f) {
 		return 2 * (int) (f / 2);
 	}
 
@@ -60,7 +60,8 @@ class StonePainter {
 		int g = (int) (color.getGreen() * BRIGHTER_SCALE);
 		int b = (int) (color.getBlue() * BRIGHTER_SCALE);
 
-		return new Color(r > 255 ? 255 : r, g > 255 ? 255 : g, b > 255 ? 255 : b);
+		return new Color(r > 255 ? 255 : r, g > 255 ? 255 : g, b > 255 ? 255
+				: b);
 	}
 
 	private static Color hover(Color color) {
@@ -68,27 +69,28 @@ class StonePainter {
 		int g = (int) (color.getGreen() * HOVER_RATIO + 255 * (1 - HOVER_RATIO));
 		int b = (int) (color.getBlue() * HOVER_RATIO + 255 * (1 - HOVER_RATIO));
 
-		return new Color(r > 255 ? 255 : r, g > 255 ? 255 : g, b > 255 ? 255 : b);
+		return new Color(r > 255 ? 255 : r, g > 255 ? 255 : g, b > 255 ? 255
+				: b);
 	}
 
 	public static Color getColor(StoneColor color) {
 		switch (color) {
-			case BLACK:
-				return new Color(0.0f, 0.0f, 0.0f);
-			case BLUE:
-				return new Color(0.0f, 0.0f, 1.0f);
-			case ORANGE:
-				return new Color(1.0f, 0.4f, 0.0f);
-			case RED:
-				return new Color(0.9f, 0.0f, 0.25f);
-			case AQUA:
-				return new Color(0.0f, 0.85f, 0.75f);
-			case GREEN:
-				return new Color(0.0f, 0.65f, 0.0f);
-			case VIOLET:
-				return new Color(0.75f, 0.325f, 0.75f);
-			case GRAY:
-				return new Color(0.5f, 0.5f, 0.5f);
+		case BLACK:
+			return new Color(0.0f, 0.0f, 0.0f);
+		case BLUE:
+			return new Color(0.0f, 0.0f, 1.0f);
+		case ORANGE:
+			return new Color(1.0f, 0.4f, 0.0f);
+		case RED:
+			return new Color(0.9f, 0.0f, 0.25f);
+		case AQUA:
+			return new Color(0.0f, 0.85f, 0.75f);
+		case GREEN:
+			return new Color(0.0f, 0.65f, 0.0f);
+		case VIOLET:
+			return new Color(0.75f, 0.325f, 0.75f);
+		case GRAY:
+			return new Color(0.5f, 0.5f, 0.5f);
 		}
 
 		return null;
@@ -98,9 +100,9 @@ class StonePainter {
 	 * Sets the new grid scale
 	 * 
 	 * @param scale
-	 *          the new scale
+	 *            the new scale
 	 */
-	public void setScale(float scale) {
+	public void setScale(double scale) {
 		this.scale = scale;
 
 		if (this.scale == 0) {
@@ -112,14 +114,14 @@ class StonePainter {
 
 	/**
 	 * @param x
-	 *          x position in screen coordinates
+	 *            x position in screen coordinates
 	 * @param y
-	 *          y position in screen coordinates
+	 *            y position in screen coordinates
 	 * @return position in grid coordinates
 	 */
 	public Position calculatePosition(int x, int y) {
-		float width = getStoneWidth();
-		float height = getStoneHeight();
+		double width = getStoneWidth();
+		double height = getStoneHeight();
 
 		return new Position(x / width, y / height);
 	}
@@ -209,19 +211,21 @@ class StonePainter {
 			defaultStones.put(color, new HashMap<Integer, BufferedImage>());
 			selectedStones.put(color, new HashMap<Integer, BufferedImage>());
 			hoveredStones.put(color, new HashMap<Integer, BufferedImage>());
-			hoveredSelectedStones.put(color, new HashMap<Integer, BufferedImage>());
+			hoveredSelectedStones.put(color,
+					new HashMap<Integer, BufferedImage>());
 		}
 	}
 
 	/**
 	 * @param scale
-	 *          the scaling factor for the grid coordinates
+	 *            the scaling factor for the grid coordinates
 	 */
-	StonePainter(float scale) {
+	StonePainter(double scale) {
 		setScale(scale);
 	}
 
-	private void paintStoneBackground(Graphics2D g, Rectangle r, Color background) {
+	private void paintStoneBackground(Graphics2D g, Rectangle r,
+			Color background) {
 		// Paint background
 		g.setColor(background);
 		g.fillRect(r.x, r.y, r.width, r.height);
@@ -322,8 +326,9 @@ class StonePainter {
 					pos + (fm.getAscent() - fm.getDescent()) / 2 + 1);
 		}
 		g.setColor(color);
-		g.drawString(value, (int) (r.x + r.width / 2 - stringRect.getWidth() / 2),
-				pos + (fm.getAscent() - fm.getDescent()) / 2);
+		g.drawString(value,
+				(int) (r.x + r.width / 2 - stringRect.getWidth() / 2), pos
+						+ (fm.getAscent() - fm.getDescent()) / 2);
 	}
 
 	private void paintCircle(Graphics2D g, Rectangle r, Color background) {
@@ -332,40 +337,42 @@ class StonePainter {
 
 		// Paint circle
 		g.setColor(background.darker());
-		g.drawArc(r.x + r.width / 2 - size / 2, pos - size / 2, size, size, 50, 170);
+		g.drawArc(r.x + r.width / 2 - size / 2, pos - size / 2, size, size, 50,
+				170);
 
 		g.setColor(brighter(background));
-		g.drawArc((int) (r.x + r.width / 2 - size / 2), pos - size / 2, size, size,
-				-130, 170);
+		g.drawArc((int) (r.x + r.width / 2 - size / 2), pos - size / 2, size,
+				size, -130, 170);
 	}
 
 	/**
 	 * Paints a stone
 	 * 
 	 * @param g
-	 *          the graphics context to paint the stone on
+	 *            the graphics context to paint the stone on
 	 * @param stone
-	 *          the stone to paint
+	 *            the stone to paint
 	 * @param p
-	 *          the position of the stone
+	 *            the position of the stone
 	 * @param selected
-	 *          if selected is true the stone will be painted darker
+	 *            if selected is true the stone will be painted darker
 	 * @param hovered
-	 *          if hovered is true the stone will be painted brighter
+	 *            if hovered is true the stone will be painted brighter
 	 */
 	public void paintStone(Graphics2D g, Stone stone, Position p,
 			boolean selected, boolean hovered) {
 		int width = getStoneWidth();
 		int height = getStoneHeight();
-		int x = Math.round(p.getX() * width), y = Math.round(p.getY() * height);
+		int x = (int) Math.round(p.getX() * width), y = (int) Math.round(p
+				.getY() * height);
 
 		if (stone.isJoker()) {
-			g.drawImage(getStoneImage(stone.getColor(), 0, selected, hovered), x, y,
-					null);
+			g.drawImage(getStoneImage(stone.getColor(), 0, selected, hovered),
+					x, y, null);
 		} else {
 			g.drawImage(
-					getStoneImage(stone.getColor(), stone.getValue(), selected, hovered),
-					x, y, null);
+					getStoneImage(stone.getColor(), stone.getValue(), selected,
+							hovered), x, y, null);
 		}
 	}
 }
diff --git a/src/jrummikub/view/impl/TablePanel.java b/src/jrummikub/view/impl/TablePanel.java
index 7c53d28..93509a6 100644
--- a/src/jrummikub/view/impl/TablePanel.java
+++ b/src/jrummikub/view/impl/TablePanel.java
@@ -39,17 +39,18 @@ class TablePanel extends AbstractStonePanel implements ITablePanel {
 	private final static ImageIcon BRIGHT_BACKGROUND = new ImageIcon(
 			HandPanel.class.getResource("/jrummikub/resource/bright_felt.png"));
 
-	private final static float MIN_VISIBLE_WIDTH = 15;
-	private final static float MIN_VISIBLE_HEIGHT = 7.5f;
-	private final static float HORIZONTAL_MARGIN = 1;
-	private final static float VERTICAL_MARGIN = 0.7f;
-	private final static float CONNECTOR_WIDTH = 0.25f;
-	private final float COLLECTION_RATIO = 0.12f;
+	private final static double MIN_VISIBLE_WIDTH = 15;
+	private final static double MIN_VISIBLE_HEIGHT = 7.5f;
+	private final static double HORIZONTAL_MARGIN = 1;
+	private final static double VERTICAL_MARGIN = 0.7f;
+	private final static double CONNECTOR_WIDTH = 0.25f;
+	private final double COLLECTION_RATIO = 0.12f;
 	private final int COLLECTION_GAP = 5;
 
 	private StoneCollectionPanel stoneCollection;
 
-	private Iterable<Pair<StoneSet, Position>> stoneSets = Collections.emptySet();
+	private Iterable<Pair<StoneSet, Position>> stoneSets = Collections
+			.emptySet();
 	private Collection<Stone> selectedStones = Collections.emptyList();
 
 	private Event1<StoneSet> leftConnectorClickEvent = new Event1<StoneSet>();
@@ -73,7 +74,7 @@ class TablePanel extends AbstractStonePanel implements ITablePanel {
 		List<Pair<Stone, Position>> stones = new ArrayList<Pair<Stone, Position>>();
 
 		for (Pair<StoneSet, Position> entry : stoneSets) {
-			float x = entry.getSecond().getX(), y = entry.getSecond().getY();
+			double x = entry.getSecond().getX(), y = entry.getSecond().getY();
 
 			for (Stone stone : entry.getFirst()) {
 				stones.add(new Pair<Stone, Position>(stone, new Position(x, y)));
@@ -98,7 +99,7 @@ class TablePanel extends AbstractStonePanel implements ITablePanel {
 	 * Sets the currently selected stones
 	 * 
 	 * @param stones
-	 *          the selected stones
+	 *            the selected stones
 	 */
 	void setSelectedStones(Collection<Stone> stones) {
 		selectedStones = stones;
@@ -134,8 +135,8 @@ class TablePanel extends AbstractStonePanel implements ITablePanel {
 	}
 
 	private Rectangle2D calculateTableExtent() {
-		float minx = -MIN_VISIBLE_WIDTH / 2, maxx = MIN_VISIBLE_WIDTH / 2;
-		float miny = -MIN_VISIBLE_HEIGHT / 2, maxy = MIN_VISIBLE_HEIGHT / 2;
+		double minx = -MIN_VISIBLE_WIDTH / 2, maxx = MIN_VISIBLE_WIDTH / 2;
+		double miny = -MIN_VISIBLE_HEIGHT / 2, maxy = MIN_VISIBLE_HEIGHT / 2;
 
 		for (Pair<StoneSet, Position> entry : stoneSets) {
 			Position p = entry.getSecond();
@@ -154,20 +155,20 @@ class TablePanel extends AbstractStonePanel implements ITablePanel {
 				maxy = p.getY() + 1;
 		}
 
-		return new Rectangle2D.Float(minx - HORIZONTAL_MARGIN, miny
-				- VERTICAL_MARGIN, maxx - minx + 2 * HORIZONTAL_MARGIN, maxy - miny + 2
-				* VERTICAL_MARGIN);
+		return new Rectangle2D.Double(minx - HORIZONTAL_MARGIN, miny
+				- VERTICAL_MARGIN, maxx - minx + 2 * HORIZONTAL_MARGIN, maxy
+				- miny + 2 * VERTICAL_MARGIN);
 	}
 
 	private void rescale() {
 		Insets insets = getInsets();
 		int x = insets.left, y = insets.top, width = getWidth() - insets.left
-				- insets.right, height = getHeight() - insets.top - insets.bottom;
+				- insets.right, height = getHeight() - insets.top
+				- insets.bottom;
 
 		int collectionHeight = (int) (height * COLLECTION_RATIO);
-		stoneCollection
-				.setBounds(x, y + height - collectionHeight - COLLECTION_GAP, width,
-						collectionHeight);
+		stoneCollection.setBounds(x, y + height - collectionHeight
+				- COLLECTION_GAP, width, collectionHeight);
 
 		setScale();
 
@@ -180,10 +181,10 @@ class TablePanel extends AbstractStonePanel implements ITablePanel {
 				- insets.top - insets.bottom;
 		Rectangle2D extent = calculateTableExtent();
 
-		float widthScale = width / (float) extent.getWidth()
+		double widthScale = width / (double) extent.getWidth()
 				* StonePainter.WIDTH_SCALE;
-		float heightScale = height * (1 - COLLECTION_RATIO)
-				/ (float) extent.getHeight() * StonePainter.HEIGHT_SCALE;
+		double heightScale = height * (1 - COLLECTION_RATIO)
+				/ (double) extent.getHeight() * StonePainter.HEIGHT_SCALE;
 
 		getStonePainter().setScale(Math.min(widthScale, heightScale));
 	}
@@ -193,10 +194,10 @@ class TablePanel extends AbstractStonePanel implements ITablePanel {
 		for (Pair<StoneSet, Position> entry : stoneSets) {
 			Position p = entry.getSecond();
 			StoneSet stoneSet = entry.getFirst();
-			float x = p.getX(), y = p.getY();
+			double x = p.getX(), y = p.getY();
 
 			// left connector
-			Rectangle2D rect = new Rectangle2D.Float(x - CONNECTOR_WIDTH, y,
+			Rectangle2D rect = new Rectangle2D.Double(x - CONNECTOR_WIDTH, y,
 					CONNECTOR_WIDTH, 1);
 			if (rect.contains(pos.getX(), pos.getY())) {
 				leftConnectorClickEvent.emit(stoneSet);
@@ -204,7 +205,8 @@ class TablePanel extends AbstractStonePanel implements ITablePanel {
 			}
 
 			// right connector
-			rect = new Rectangle2D.Float(x + stoneSet.getSize(), y, CONNECTOR_WIDTH, 1);
+			rect = new Rectangle2D.Double(x + stoneSet.getSize(), y,
+					CONNECTOR_WIDTH, 1);
 			if (rect.contains(pos.getX(), pos.getY())) {
 				rightConnectorClickEvent.emit(stoneSet);
 				return true;
@@ -224,10 +226,10 @@ class TablePanel extends AbstractStonePanel implements ITablePanel {
 		for (Pair<StoneSet, Position> entry : stoneSets) {
 			Position p = entry.getSecond();
 			StoneSet stoneSet = entry.getFirst();
-			float x = p.getX(), y = p.getY();
+			double x = p.getX(), y = p.getY();
 
 			// left connector
-			Rectangle2D rect = new Rectangle2D.Float(x - CONNECTOR_WIDTH, y,
+			Rectangle2D rect = new Rectangle2D.Double(x - CONNECTOR_WIDTH, y,
 					CONNECTOR_WIDTH, 1);
 			if (rect.contains(pos.getX(), pos.getY())) {
 				leftHoveredConnector = stoneSet;
@@ -235,7 +237,8 @@ class TablePanel extends AbstractStonePanel implements ITablePanel {
 			}
 
 			// right connector
-			rect = new Rectangle2D.Float(x + stoneSet.getSize(), y, CONNECTOR_WIDTH, 1);
+			rect = new Rectangle2D.Double(x + stoneSet.getSize(), y,
+					CONNECTOR_WIDTH, 1);
 			if (rect.contains(pos.getX(), pos.getY())) {
 				rightHoveredConnector = stoneSet;
 				break;
@@ -257,15 +260,15 @@ class TablePanel extends AbstractStonePanel implements ITablePanel {
 				.getStoneHeight();
 		Rectangle2D extent = calculateTableExtent();
 
-		return new Pair<Integer, Integer>((int) (width / 2 - extent.getCenterX()
-				* stoneWidth),
-				(int) ((height * (1 - COLLECTION_RATIO)) / 2 - extent.getCenterY()
-						* stoneHeight));
+		return new Pair<Integer, Integer>(
+				(int) (width / 2 - extent.getCenterX() * stoneWidth),
+				(int) ((height * (1 - COLLECTION_RATIO)) / 2 - extent
+						.getCenterY() * stoneHeight));
 	}
 
 	private void paintStoneSet(Graphics2D g, StoneSet stoneSet, Position pos,
 			Area connectorArea, Area hoveredConnectorArea) {
-		float x = pos.getX();
+		double x = pos.getX();
 		int width = getStonePainter().getStoneWidth(), height = getStonePainter()
 				.getStoneHeight();
 		Area leftConnectorArea = (stoneSet == leftHoveredConnector ? hoveredConnectorArea
@@ -275,9 +278,10 @@ class TablePanel extends AbstractStonePanel implements ITablePanel {
 
 		// Left connector
 
-		leftConnectorArea.add(new Area(new Rectangle2D.Float(Math.round(x * width)
-				- (int) width * CONNECTOR_WIDTH + 1, Math.round(pos.getY() * height),
-				(int) (width * CONNECTOR_WIDTH), height)));
+		leftConnectorArea.add(new Area(new Rectangle2D.Double(Math.round(x
+				* width)
+				- (int) width * CONNECTOR_WIDTH + 1, Math.round(pos.getY()
+				* height), (int) (width * CONNECTOR_WIDTH), height)));
 
 		for (Stone stone : stoneSet) {
 			getStonePainter().paintStone(g, stone, new Position(x, pos.getY()),
@@ -286,8 +290,8 @@ class TablePanel extends AbstractStonePanel implements ITablePanel {
 		}
 
 		// Right connector
-		rightConnectorArea.add(new Area(new Rectangle2D.Float(
-				Math.round(x * width), Math.round(pos.getY() * height),
+		rightConnectorArea.add(new Area(new Rectangle2D.Double(Math.round(x
+				* width), Math.round(pos.getY() * height),
 				(int) (width * CONNECTOR_WIDTH), height)));
 	}
 
@@ -311,15 +315,16 @@ class TablePanel extends AbstractStonePanel implements ITablePanel {
 		Area hoveredConnectorArea = new Area();
 
 		for (Pair<StoneSet, Position> entry : stoneSets) {
-			paintStoneSet(g, entry.getFirst(), entry.getSecond(), connectorArea,
-					hoveredConnectorArea);
+			paintStoneSet(g, entry.getFirst(), entry.getSecond(),
+					connectorArea, hoveredConnectorArea);
 		}
 
 		g.setClip(connectorArea);
 		g.setTransform(oldTransform);
 
 		for (int x = 0; x < getWidth(); x += DARK_BACKGROUND.getIconWidth()) {
-			for (int y = 0; y < getHeight(); y += DARK_BACKGROUND.getIconHeight()) {
+			for (int y = 0; y < getHeight(); y += DARK_BACKGROUND
+					.getIconHeight()) {
 				DARK_BACKGROUND.paintIcon(this, g, x, y);
 			}
 		}
@@ -335,7 +340,8 @@ class TablePanel extends AbstractStonePanel implements ITablePanel {
 		g.setTransform(oldTransform);
 
 		for (int x = 0; x < getWidth(); x += BRIGHT_BACKGROUND.getIconWidth()) {
-			for (int y = 0; y < getHeight(); y += BRIGHT_BACKGROUND.getIconHeight()) {
+			for (int y = 0; y < getHeight(); y += BRIGHT_BACKGROUND
+					.getIconHeight()) {
 				BRIGHT_BACKGROUND.paintIcon(this, g, x, y);
 			}
 		}