fix for #24

pom.xml

@@ -4,7 +4,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>de.srsoftware</groupId>
 	<artifactId>web4rail</artifactId>
-	<version>1.2.33</version>
+	<version>1.2.34</version>
 	<name>Web4Rail</name>
 	<packaging>jar</packaging>
 	<description>Java Model Railway Control</description>

src/main/java/de/srsoftware/web4rail/Application.java

@@ -13,6 +13,7 @@ import java.net.InetSocketAddress;
 import java.net.URI;
 import java.net.URLDecoder;
 import java.nio.file.Files;
+import java.nio.file.NoSuchFileException;
 import java.util.HashMap;
 
 import org.slf4j.Logger;
@@ -66,7 +67,7 @@ public class Application extends BaseClass{
         server.start();
         try {
         	Plan.load(Plan.DEFAULT_NAME);
-        } catch (FileNotFoundException e) {
+        } catch (FileNotFoundException|NoSuchFileException e) {
         	plan = new Plan();
 		}
         for (String arg : args) {

src/main/java/de/srsoftware/web4rail/ControlUnit.java

@@ -176,14 +176,14 @@ public class ControlUnit extends Thread implements Constants{
 	 */
 	public Object properties() {
 		Window win = new Window("cu-props", t("Properties of the control unit"));
-		Form form = new Form();
+		Form form = new Form("cu-prop-form");
 		new Input(ACTION,ACTION_UPDATE).hideIn(form);
 		new Input(REALM,REALM_CU).hideIn(form);
 		Fieldset fieldset = new Fieldset(t("Server connection"));
 		new Input(HOST,host).addTo(new Label(t("Hostname"))).addTo(fieldset);
 		new Input(PORT,port).numeric().addTo(new Label(t("Port"))).addTo(fieldset);
 		new Input(BUS,bus).numeric().addTo(new Label(t("Bus"))).addTo(fieldset);
-		new Button(t("Apply")).addTo(fieldset).addTo(form).addTo(win);
+		new Button(t("Apply"),form).addTo(fieldset).addTo(form).addTo(win);
 		
 		fieldset = new Fieldset("Actions");
 		new Button(t("Connect"),"connectCu();").addTo(fieldset).addTo(win);

src/main/java/de/srsoftware/web4rail/Plan.java

@@ -62,9 +62,9 @@ import de.srsoftware.web4rail.tiles.SignalS;
 import de.srsoftware.web4rail.tiles.SignalW;
 import de.srsoftware.web4rail.tiles.StraightH;
 import de.srsoftware.web4rail.tiles.StraightV;
-import de.srsoftware.web4rail.tiles.StretchableTile;
 import de.srsoftware.web4rail.tiles.TextDisplay;
 import de.srsoftware.web4rail.tiles.Tile;
+import de.srsoftware.web4rail.tiles.TileWithShadow;
 import de.srsoftware.web4rail.tiles.Turnout.State;
 import de.srsoftware.web4rail.tiles.Turnout3E;
 import de.srsoftware.web4rail.tiles.TurnoutLE;
@@ -238,8 +238,9 @@ public class Plan extends BaseClass{
 			}
 			return null;
 		}
-		if (tile instanceof StretchableTile) ((StretchableTile)tile).placeShadows();
-		place(tile.position(x, y));
+		tile.position(x, y);
+		if (tile instanceof TileWithShadow) ((TileWithShadow)tile).placeShadows();
+		place(tile);
 		return t("Added {}",tile.getClass().getSimpleName());
 	}
 	

src/main/java/de/srsoftware/web4rail/tiles/Cross.java

@@ -5,6 +5,6 @@ import java.util.Map;
 import de.srsoftware.web4rail.Connector;
 import de.srsoftware.web4rail.Plan.Direction;
 
-public abstract class Cross extends Tile {
+public abstract class Cross extends TileWithShadow {
 	public abstract Map<Connector,Turnout.State> offsetConnections(Direction from);
 }

src/main/java/de/srsoftware/web4rail/tiles/CrossH.java

@@ -33,16 +33,15 @@ public class CrossH extends Cross{
 	public Map<Connector,State> offsetConnections(Direction from) {
 		if (isNull(from)) return new HashMap<>();
 		switch (from) {
-		case NORTH:
-			return Map.of(new Connector(x,y+1,Direction.NORTH),State.UNDEF);
-		case SOUTH:
-			return Map.of(new Connector(x,y-1,Direction.SOUTH),State.UNDEF);
-		default:
-			return new HashMap<>();
+			case NORTH:
+				return Map.of(new Connector(x,y+1,Direction.NORTH),State.UNDEF);
+			case SOUTH:
+				return Map.of(new Connector(x,y-1,Direction.SOUTH),State.UNDEF);
+			default:
+				return new HashMap<>();
+		}	
 	}
 	
-}
-	
 	@Override
 	public Tag tag(Map<String,Object> replacements) throws IOException {
 		return super.tag(replacements).size(200,100).attr("viewbox", "0 0 200 100");

src/main/java/de/srsoftware/web4rail/tiles/CrossV.java

@@ -1,6 +1,7 @@
 package de.srsoftware.web4rail.tiles;
 
 import java.io.IOException;
+import java.util.HashMap;
 import java.util.Map;
 
 import de.srsoftware.tools.Tag;
@@ -10,14 +11,35 @@ import de.srsoftware.web4rail.tiles.Turnout.State;
 
 public class CrossV extends Cross{
 	
+	@Override
+	public Map<Connector, State> connections(Direction from) {
+		if (isNull(from)) return new HashMap<>();
+		switch (from) {
+			case WEST:
+				return Map.of(new Connector(x+1,y+1,Direction.WEST),State.UNDEF);
+			case EAST:
+				return Map.of(new Connector(x-1,y+1,Direction.EAST),State.UNDEF);
+			default:
+				return new HashMap<>();
+		}
+	}
+	
 	@Override
 	public int height() {
 		return 2;
 	}
 	
 	@Override
-	public Map<Connector, State> offsetConnections(Direction from) {
-		return null;
+	public Map<Connector,State> offsetConnections(Direction from) {
+		if (isNull(from)) return new HashMap<>();
+		switch (from) {
+			case WEST:
+				return Map.of(new Connector(x+1,y,Direction.WEST),State.UNDEF);
+			case EAST:
+				return Map.of(new Connector(x-1,y,Direction.EAST),State.UNDEF);
+			default:
+				return new HashMap<>();
+		}	
 	}
 	
 	@Override

src/main/java/de/srsoftware/web4rail/tiles/Shadow.java

@@ -20,7 +20,7 @@ public class Shadow extends Tile{
 		return super.connections(from);
 	}
 
-	public Shadow(StretchableTile overlay, int x, int y) {		
+	public Shadow(TileWithShadow overlay, int x, int y) {		
 		this.overlay = overlay;
 		this.x = x;
 		this.y = y;

src/main/java/de/srsoftware/web4rail/tiles/StretchableTile.java

@@ -3,7 +3,6 @@ package de.srsoftware.web4rail.tiles;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map.Entry;
-import java.util.Vector;
 
 import org.json.JSONObject;
 
@@ -13,14 +12,9 @@ import de.srsoftware.web4rail.Window;
 import de.srsoftware.web4rail.tags.Fieldset;
 import de.srsoftware.web4rail.tags.Input;
 
-public abstract class StretchableTile extends Tile {
+public abstract class StretchableTile extends TileWithShadow {
 	private static final String STRETCH_LENGTH = "stretch";
 	private int stretch = 1;
-	private Vector<Id> shadows = new Vector<Id>();
-	
-	public void add(Shadow shadow) {
-		shadows.add(shadow.id());
-	}
 	
 	@Override
 	public JSONObject config() {
@@ -58,17 +52,9 @@ public abstract class StretchableTile extends Tile {
 			if (!tileAtDest.move(dx, dy)) return false;
 		}
 
-		boolean moved = super.move(dx, dy);
-		if (moved) placeShadows();
-		return moved;
-	}
-	
-	public void placeShadows() {
-		removeShadows();
-		for (int dx=1; dx<width(); dx++) plan.place(new Shadow(this, x+dx, y));
-		for (int dy=1; dy<height(); dy++) plan.place(new Shadow(this, x, y+dy));
+		return super.move(dx, dy);
 	}
-	
+		
 	@Override
 	protected Window properties(List<Fieldset> preForm, FormInput formInputs, List<Fieldset> postForm) {
 		formInputs.add(stretchType(),new Input(STRETCH_LENGTH, stretch).numeric().addTo(new Tag("span")).content(NBSP+t("Tile(s)")));
@@ -81,13 +67,6 @@ public abstract class StretchableTile extends Tile {
 		removeShadows();
 		return super.remove();
 	}
-	
-	private void removeShadows() {
-		while (!shadows.isEmpty()) {
-			Tile tile = BaseClass.get(shadows.remove(0));
-			if (tile instanceof Shadow) tile.remove();
-		}
-	}
 
 	public int stretch() {
 		return stretch;

src/main/java/de/srsoftware/web4rail/tiles/Tile.java

@@ -109,7 +109,7 @@ public abstract class Tile extends BaseClass implements Comparable<Tile>{
 		clazz = Tile.class.getName().replace(".Tile", "."+clazz);
 		Tile tile = (Tile) Tile.class.getClassLoader().loadClass(clazz).getDeclaredConstructor().newInstance();
 		tile.load(json).register();
-		if (tile instanceof StretchableTile) ((StretchableTile)tile).placeShadows();
+		if (tile instanceof TileWithShadow) ((TileWithShadow)tile).placeShadows();
 		plan.place(tile);
 	}
 

src/main/java/de/srsoftware/web4rail/tiles/TileWithShadow.java

@@ -0,0 +1,33 @@
+package de.srsoftware.web4rail.tiles;
+
+import java.util.Vector;
+
+import de.srsoftware.web4rail.BaseClass;
+
+public class TileWithShadow extends Tile {
+	private Vector<Id> shadows = new Vector<Id>();
+	
+	public void add(Shadow shadow) {
+		shadows.add(shadow.id());
+	}
+	
+	@Override
+	public boolean move(int dx, int dy) {
+		boolean moved = super.move(dx, dy);
+		if (moved) placeShadows();
+		return moved;
+	}
+
+	public void placeShadows() {
+		removeShadows();
+		for (int dx=1; dx<width(); dx++) plan.place(new Shadow(this, x+dx, y));
+		for (int dy=1; dy<height(); dy++) plan.place(new Shadow(this, x, y+dy));
+	}	
+	
+	protected void removeShadows() {
+		while (!shadows.isEmpty()) {
+			Tile tile = BaseClass.get(shadows.remove(0));
+			if (tile instanceof Shadow) tile.remove();
+		}
+	}
+}