Added hover effects

git-svn-id: svn://sunsvr01.isp.uni-luebeck.de/swproj13/trunk@166 72836036-5685-4462-b002-a69064685172

5 files changed, 86 insertions, 15 deletions

diff --git a/src/jrummikub/view/impl/AbstractStonePanel.java b/src/jrummikub/view/impl/AbstractStonePanel.java
index 7210d1c..fd3862b 100644
--- a/src/jrummikub/view/impl/AbstractStonePanel.java
+++ b/src/jrummikub/view/impl/AbstractStonePanel.java
@@ -3,6 +3,7 @@ package jrummikub.view.impl;
 import java.awt.Insets;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
+import java.awt.event.MouseMotionAdapter;
 import java.awt.geom.Rectangle2D;
 import java.util.Collections;
 
@@ -30,6 +31,7 @@ abstract class AbstractStonePanel extends JPanel implements IStonePanel,
 	private Event2<Stone, Boolean> setClickEvent = new Event2<Stone, Boolean>();
 
 	private Iterable<Pair<Stone, Position>> stones = Collections.emptySet();
+	private Stone hoveredStone = null;
 
 	/**
 	 * @return the stone painter
@@ -52,7 +54,7 @@ abstract class AbstractStonePanel extends JPanel implements IStonePanel,
 	 *          the grid scale
 	 */
 	public AbstractStonePanel(float scale) {
-		super(false); // Unset double buffered
+		super(true); // Set double buffered
 
 		stonePainter = new StonePainter(scale);
 
@@ -81,9 +83,43 @@ abstract class AbstractStonePanel extends JPanel implements IStonePanel,
 
 				event.emit(stone, e.isControlDown());
 			}
+
+			@Override
+			public void mouseExited(MouseEvent e) {
+				setHoveredStone(null);
+			}
+		});
+
+		addMouseMotionListener(new MouseMotionAdapter() {
+			@Override
+			public void mouseMoved(MouseEvent e) {
+				Insets insets = getInsets();
+				Pair<Integer, Integer> trans = getTranslation();
+				Position pos = stonePainter.calculatePosition(e.getX() - insets.left
+						- trans.getFirst(), e.getY() - insets.top - trans.getSecond());
+
+				setHoveredStone(getStoneAt(pos));
+			}
 		});
 	}
 
+	private void setHoveredStone(Stone stone) {
+		Stone oldStone = hoveredStone;
+		hoveredStone = stone;
+
+		if (oldStone != hoveredStone)
+			repaint();
+	}
+
+	/**
+	 * Returns the stone the mouse pointer is hovering over
+	 * 
+	 * @return the hovered stone
+	 */
+	protected Stone getHoveredStone() {
+		return hoveredStone;
+	}
+
 	/**
 	 * *Overwrite this method* to signal if special zone was clicked
 	 * 
diff --git a/src/jrummikub/view/impl/HandPanel.java b/src/jrummikub/view/impl/HandPanel.java
index ab4caec..38a8440 100644
--- a/src/jrummikub/view/impl/HandPanel.java
+++ b/src/jrummikub/view/impl/HandPanel.java
@@ -100,7 +100,7 @@ class HandPanel extends AbstractStonePanel implements IHandPanel {
 
 		for (Pair<Stone, Position> entry : getStones()) {
 			getStonePainter().paintStone(g, entry.getFirst(), entry.getSecond(),
-					selectedStones.contains(entry.getFirst()));
+					selectedStones.contains(entry.getFirst()), entry.getFirst() == getHoveredStone());
 		}
 	}
 
diff --git a/src/jrummikub/view/impl/StoneCollectionPanel.java b/src/jrummikub/view/impl/StoneCollectionPanel.java
index e4a9c94..5064b56 100644
--- a/src/jrummikub/view/impl/StoneCollectionPanel.java
+++ b/src/jrummikub/view/impl/StoneCollectionPanel.java
@@ -110,7 +110,7 @@ class StoneCollectionPanel extends AbstractStonePanel implements
 			float xpos = 0;
 
 			for (Stone stone : selectedStones) {
-				getStonePainter().paintStone(g, stone, new Position(xpos, 0), false);
+				getStonePainter().paintStone(g, stone, new Position(xpos, 0), false, stone == getHoveredStone());
 				xpos++;
 			}
 		}
diff --git a/src/jrummikub/view/impl/StonePainter.java b/src/jrummikub/view/impl/StonePainter.java
index 68ab72c..bfa61ea 100644
--- a/src/jrummikub/view/impl/StonePainter.java
+++ b/src/jrummikub/view/impl/StonePainter.java
@@ -31,12 +31,14 @@ class StonePainter {
 	private static final float CIRCLE_WIDTH = 0.45f;
 
 	private static final Color BACKGROUND_COLOR = new Color(0.9f, 0.9f, 0.6f);
-	private static final Color SELECTED_COLOR = BACKGROUND_COLOR.darker();
 
 	private static final float BRIGHTER_SCALE = 1.15f;
+	private static final float HOVER_RATIO = 0.7f;
 
 	private Map<StoneColor, Map<Integer, BufferedImage>> defaultStones;
 	private Map<StoneColor, Map<Integer, BufferedImage>> selectedStones;
+	private Map<StoneColor, Map<Integer, BufferedImage>> hoveredStones;
+	private Map<StoneColor, Map<Integer, BufferedImage>> hoveredSelectedStones;
 
 	/**
 	 * The width of one pixel in the scale of 1.0
@@ -55,8 +57,16 @@ class StonePainter {
 
 	private static Color brighter(Color color) {
 		int r = (int) (color.getRed() * BRIGHTER_SCALE);
-		int g = (int) (color.getRed() * BRIGHTER_SCALE);
-		int b = (int) (color.getRed() * BRIGHTER_SCALE);
+		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);
+	}
+
+	private static Color hover(Color color) {
+		int r = (int) (color.getRed() * HOVER_RATIO + 255 * (1-HOVER_RATIO));
+		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);
 	}
@@ -156,16 +166,25 @@ class StonePainter {
 	private void prepaint() {
 		defaultStones = new HashMap<StoneColor, Map<Integer, BufferedImage>>();
 		selectedStones = new HashMap<StoneColor, Map<Integer, BufferedImage>>();
+		hoveredStones = new HashMap<StoneColor, Map<Integer, BufferedImage>>();
+		hoveredSelectedStones = new HashMap<StoneColor, Map<Integer, BufferedImage>>();
 
 		Color defaultBackground = BACKGROUND_COLOR;
-		Color selectedBackground = SELECTED_COLOR;
+		Color selectedBackground = BACKGROUND_COLOR.darker();
+		Color hoveredBackground = hover(defaultBackground);
+		Color hoveredSelectedBackground = hover(selectedBackground);
 
 		for (StoneColor color : StoneColor.values()) {
 			Color defaultFg = getColor(color);
 			Color selectedFg = defaultFg.darker();
+			Color hoveredFg = hover(defaultFg);
+			Color hoveredSelectedFg = hover(selectedFg);
 
 			defaultStones.put(color, prepaintColor(defaultFg, defaultBackground));
 			selectedStones.put(color, prepaintColor(selectedFg, selectedBackground));
+			hoveredStones.put(color, prepaintColor(hoveredFg, hoveredBackground));
+			hoveredSelectedStones.put(color,
+					prepaintColor(hoveredSelectedFg, hoveredSelectedBackground));
 		}
 	}
 
@@ -303,21 +322,37 @@ class StonePainter {
 	 *          the position of the stone
 	 * @param selected
 	 *          if selected is true the stone will be painted darker
+	 * @param hovered
+	 *          if hovered is true the stone will be painted brighter
 	 */
-	public void paintStone(Graphics2D g, Stone stone, Position p, boolean selected) {
+	public void paintStone(Graphics2D g, Stone stone, Position p,
+			boolean selected, boolean hovered) {
 		// Color background = selected ? SELECTED_COLOR : BACKGROUND_COLOR;
 		int width = getStoneWidth();
 		int height = getStoneHeight();
 		int x = (int) (p.getX() * width), y = (int) (p.getY() * height);
 
+		Map<StoneColor, Map<Integer, BufferedImage>> stoneMap;
+
+		if (selected) {
+			if (hovered) {
+				stoneMap = hoveredSelectedStones;
+			} else {
+				stoneMap = selectedStones;
+			}
+		} else {
+			if (hovered) {
+				stoneMap = hoveredStones;
+			} else {
+				stoneMap = defaultStones;
+			}
+		}
+
 		if (stone.isJoker()) {
-			g.drawImage(
-					(selected ? selectedStones : defaultStones).get(stone.getColor())
-							.get(0), x, y, null);
+			g.drawImage(stoneMap.get(stone.getColor()).get(0), x, y, null);
 		} else {
-			g.drawImage(
-					(selected ? selectedStones : defaultStones).get(stone.getColor())
-							.get(stone.getValue()), x, y, null);
+			g.drawImage(stoneMap.get(stone.getColor()).get(stone.getValue()), x, y,
+					null);
 		}
 	}
 }
diff --git a/src/jrummikub/view/impl/TablePanel.java b/src/jrummikub/view/impl/TablePanel.java
index c118613..f34765e 100644
--- a/src/jrummikub/view/impl/TablePanel.java
+++ b/src/jrummikub/view/impl/TablePanel.java
@@ -255,7 +255,7 @@ class TablePanel extends AbstractStonePanel implements ITablePanel {
 
 		for (Stone stone : stoneSet) {
 			getStonePainter().paintStone(g, stone, new Position(x, pos.getY()),
-					selectedStones.contains(stone));
+					selectedStones.contains(stone), stone == getHoveredStone());
 			x++;
 		}