StonePainter: Paint stones lazily

git-svn-id: svn://sunsvr01.isp.uni-luebeck.de/swproj13/trunk@336 72836036-5685-4462-b002-a69064685172

1 files changed, 77 insertions, 84 deletions

diff --git a/src/jrummikub/view/impl/StonePainter.java b/src/jrummikub/view/impl/StonePainter.java
index d9bbdba..572ba76 100644
--- a/src/jrummikub/view/impl/StonePainter.java
+++ b/src/jrummikub/view/impl/StonePainter.java
@@ -60,8 +60,7 @@ 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) {
@@ -69,28 +68,27 @@ 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);
 	}
 
 	private static Color getColor(StoneColor color) {
 		switch (color) {
-		case BLACK:
-			return new Color(0.15f, 0.15f, 0.15f);
-		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 BROWN:
-			return new Color(0.5f, 0.25f, 0.0f);
-		case GREEN:
-			return new Color(0.0f, 0.75f, 0.0f);
-		case VIOLET:
-			return new Color(0.75f, 0.325f, 0.75f);
-		case WHITE:
-			return new Color(1.0f, 1.0f, 1.0f);
+			case BLACK:
+				return new Color(0.15f, 0.15f, 0.15f);
+			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 BROWN:
+				return new Color(0.5f, 0.25f, 0.0f);
+			case GREEN:
+				return new Color(0.0f, 0.75f, 0.0f);
+			case VIOLET:
+				return new Color(0.75f, 0.325f, 0.75f);
+			case WHITE:
+				return new Color(1.0f, 1.0f, 1.0f);
 		}
 
 		return null;
@@ -100,7 +98,7 @@ class StonePainter {
 	 * Sets the new grid scale
 	 * 
 	 * @param scale
-	 *            the new scale
+	 *          the new scale
 	 */
 	public void setScale(float scale) {
 		this.scale = scale;
@@ -109,14 +107,14 @@ class StonePainter {
 			this.scale = 1;
 		}
 
-		prepaint();
+		resetPrepaint();
 	}
 
 	/**
 	 * @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) {
@@ -161,56 +159,69 @@ class StonePainter {
 		return img;
 	}
 
-	private Map<Integer, BufferedImage> prepaintColor(Color fg, Color bg) {
-		Map<Integer, BufferedImage> images = new HashMap<Integer, BufferedImage>();
+	private BufferedImage getStoneImage(StoneColor color, int value, boolean selected,
+			boolean hovered) {
+		Map<StoneColor, Map<Integer, BufferedImage>> stoneMap;
+
+		if (selected) {
+			if (hovered) {
+				stoneMap = hoveredSelectedStones;
+			} else {
+				stoneMap = selectedStones;
+			}
+		} else {
+			if (hovered) {
+				stoneMap = hoveredStones;
+			} else {
+				stoneMap = defaultStones;
+			}
+		}
+
+		BufferedImage image = stoneMap.get(color).get(value);
+
+		if (image == null) {
+			Color background = BACKGROUND_COLOR;
+			Color foreground = getColor(color);
+			if (selected) {
+				background = background.darker();
+				foreground = foreground.darker();
+			}
+			if (hovered) {
+				background = hover(background);
+				foreground = hover(foreground);
+			}
+
+			image = prepaintStone(foreground, background, value);
 
-		for (int i = 0; i <= 13; ++i) {
-			images.put(i, prepaintStone(fg, bg, i));
+			stoneMap.get(color).put(value, image);
 		}
 
-		return images;
+		return image;
 	}
 
-	private void prepaint() {
+	private void resetPrepaint() {
 		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 = 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));
+			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>());
 		}
 	}
 
 	/**
 	 * @param scale
-	 *            the scaling factor for the grid coordinates
+	 *          the scaling factor for the grid coordinates
 	 */
 	StonePainter(float 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);
@@ -310,9 +321,8 @@ 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) {
@@ -321,27 +331,26 @@ 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) {
@@ -349,27 +358,11 @@ class StonePainter {
 		int height = getStoneHeight();
 		int x = Math.round(p.getX() * width), y = Math.round(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(stoneMap.get(stone.getColor()).get(0), x, y, null);
+			g.drawImage(getStoneImage(stone.getColor(), 0, selected, hovered), x, y, null);
 		} else {
-			g.drawImage(stoneMap.get(stone.getColor()).get(stone.getValue()),
-					x, y, null);
+			g.drawImage(getStoneImage(stone.getColor(), stone.getValue(), selected, hovered), x, y,
+					null);
 		}
 	}
 }