added new tiles and actions:

* Tile displaying text
* TextDisplay: an action that sends text to clients
* DetermineTrainInBlock: action that alters the context by requesting the train in a specific block

pom.xml

@@ -4,7 +4,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>de.srsoftware</groupId>
 	<artifactId>web4rail</artifactId>
-	<version>1.0.8</version>
+	<version>1.0.9</version>
 	<name>Web4Rail</name>
 	<packaging>jar</packaging>
 	<description>Java Model Railway Control</description>

resources/svg/TextDisplay.svg

@@ -0,0 +1,3 @@
+<svg width="100" height="100" viewbox="0 0 100 100">
+	<text x="10" y="65">%text%</text>
+</svg>

resources/translations/Application.de.translation

@@ -49,9 +49,11 @@ delete route : Route löschen
 Destination : Ziel
 Destination\: : Ziel:
 Destination\: {} from {} : Ziel: {} von {}
+DetermineTrainInBlock : Zug im Block bestimmen
 Direction : Richtung
 Direction\: heading {} : Richtung: nach {}
 disabled : deaktiviert
+Display "{}" on clients. : „{}“ auf den Clients anzeigen.
 Drop : Verwerfen
 Dropped destination of {}. : Ziel von {} verworfen.
 EAST : Osten
@@ -120,7 +122,7 @@ Select from plan : Auf Plan auswählen
 Select relay\: : Relais auswählen:
 Select train\: : Zug auswählen:
 SendCommand : Kommando senden
-Send command \"{}\" to control unit : Kommando „{}“ an Zentrale senden
+Send command "{}" to control unit : Kommando „{}“ an Zentrale senden
 SetRelay : Relais schalten
 SetSignal : Signal stellen
 SetSignalsToStop : Signale auf Halt stellen
@@ -131,6 +133,7 @@ Set {} to {} : {} auf {} setzen
 SetPower : Strom schalten
 Set speed to : Geschwindigkeit setzen
 Setup actions : Aktivierungs-Aktionen
+ShowText : Text anzeigen
 Signals : Signale
 Simulating movement of {}... : Simuliere Fahrt von {}...
 SOUTH : Süden
@@ -147,6 +150,7 @@ Switch power off : Strom ausschalten
 Switch power on : Strom anschalten
 Tag : Markierung
 Tags : Markierungen
+Text to display on clients\: : Text, welcher auf den Clients angezeigt werden soll:
 Toggle : umschalten
 Toggle power : Stom umschalten
 Train : Zug

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

@@ -50,6 +50,7 @@ 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.TextDisplay;
 import de.srsoftware.web4rail.tiles.Tile;
 import de.srsoftware.web4rail.tiles.Turnout.State;
 import de.srsoftware.web4rail.tiles.Turnout3E;
@@ -804,6 +805,7 @@ public class Plan extends BaseClass{
 		new Turnout3E().tag(null).addTo(tiles);
 		new Relay().setLabel(true,"RL").tag(null).addTo(tiles);
 		new Contact().tag(null).addTo(tiles);
+		new TextDisplay().text("tx").tag(null).addTo(tiles);
 		new Eraser().tag(null).addTo(tiles);
 		return tiles.addTo(tileMenu);
 	}

src/main/java/de/srsoftware/web4rail/actions/Action.java

@@ -125,12 +125,14 @@ public abstract class Action extends BaseClass {
 		return List.of(
 			ConditionalAction.class,
 			DelayedAction.class,
+			DetermineTrainInBlock.class,
 			FinishRoute.class,
 			SendCommand.class,
 			SetPower.class,
 			SetRelay.class,
 			SetSignal.class,
 			SetSpeed.class,
+			ShowText.class,
 			StopAllTrains.class,
 			StopAuto.class,
 			TriggerContact.class,

src/main/java/de/srsoftware/web4rail/actions/DetermineTrainInBlock.java

@@ -0,0 +1,70 @@
+package de.srsoftware.web4rail.actions;
+
+import java.io.IOException;
+import java.util.HashMap;
+
+import org.json.JSONObject;
+
+import de.srsoftware.web4rail.Window;
+import de.srsoftware.web4rail.tags.Button;
+import de.srsoftware.web4rail.tags.Form;
+import de.srsoftware.web4rail.tags.Input;
+import de.srsoftware.web4rail.tags.Label;
+import de.srsoftware.web4rail.tags.Select;
+import de.srsoftware.web4rail.tiles.Block;
+
+public class DetermineTrainInBlock extends Action {
+		
+	private Block block = null;
+	
+	@Override
+	public boolean fire(Context context) throws IOException {
+		context.block = block;
+		context.train = block.train();		
+		return true;
+	}
+	
+	@Override
+	public JSONObject json() {
+		JSONObject json = super.json();
+		if (isSet(block)) json.put(BLOCK, block.id());
+		return json;
+	}
+	
+	@Override
+	public Action load(JSONObject json) {
+		super.load(json);
+		String blockId = json.getString(BLOCK);
+		if (isSet(blockId)) block = Block.get(blockId);
+		return this;
+	}
+	
+	@Override
+	public Window properties(HashMap<String, String> params) {
+		Window win = super.properties(params);
+		Form form = new Form("action-prop-form-"+id);
+		new Input(REALM,REALM_ACTIONS).hideIn(form);
+		new Input(ID,params.get(ID)).hideIn(form);
+		new Input(ACTION,ACTION_UPDATE).hideIn(form);
+		new Input(CONTEXT,params.get(CONTEXT)).hideIn(form);
+		
+		Select select = Block.selector(block, null);
+		select.addTo(new Label(t("Select block:")+NBSP)).addTo(form);
+		
+		new Button(t("Apply"),form).addTo(form).addTo(win);		
+		return win;
+	}
+	
+	public String toString() {
+		return isSet(block) ? t("Determine, which train is in {}",block) : "["+t("click here to setup block")+"]";
+	};
+	
+	@Override
+	protected Object update(HashMap<String, String> params) {
+		LOG.debug("update: {}",params);
+		String blockId = params.get(Block.class.getSimpleName());
+		if (isSet(blockId)) block = Block.get(blockId);
+		return properties(params);
+	}
+
+}

src/main/java/de/srsoftware/web4rail/actions/SendCommand.java

@@ -28,7 +28,7 @@ public class SendCommand extends Action{
 			}
 		});
 	
-		return false;
+		return true;
 	}
 	
 	@Override

src/main/java/de/srsoftware/web4rail/actions/ShowText.java

@@ -0,0 +1,23 @@
+package de.srsoftware.web4rail.actions;
+
+import de.srsoftware.web4rail.tags.Label;
+
+public class ShowText extends TextAction{
+
+
+	@Override
+	public boolean fire(Context context) {
+		plan.stream(fill(text,context));
+		return true;
+	}
+
+	@Override
+	protected Label label() {
+		return new Label(t("Text to display on clients:")+NBSP);
+	}
+	
+	@Override
+	public String toString() {
+		return t("Display \"{}\" on clients.",text);
+	}
+}

src/main/java/de/srsoftware/web4rail/actions/TextAction.java

@@ -0,0 +1,66 @@
+package de.srsoftware.web4rail.actions;
+
+import java.util.HashMap;
+
+import org.json.JSONObject;
+
+import de.srsoftware.tools.Tag;
+import de.srsoftware.web4rail.Window;
+import de.srsoftware.web4rail.tags.Button;
+import de.srsoftware.web4rail.tags.Form;
+import de.srsoftware.web4rail.tags.Input;
+import de.srsoftware.web4rail.tags.Label;
+
+public abstract class TextAction extends Action {
+	
+	public static final String TEXT = "text";
+	protected String text = "Hello, world!";
+
+
+	public String fill(String tx,Context context) {
+		if (isSet(context.block)) tx = tx.replace("%block%", context.block.name);
+		if (isSet(context.contact)) tx = tx.replace("%contact%", context.contact.id());
+		if (isSet(context.direction)) tx = tx.replace("%dir%", context.direction.name());
+		if (isSet(context.route)) tx = tx.replace("%route%", context.route.name());
+		if (isSet(context.train)) tx = tx.replace("%train%", context.train.name());		
+		return tx;
+	}
+	
+	@Override
+	public JSONObject json() {
+		JSONObject json = super.json();
+		json.put(TEXT, text);
+		return json;
+	}
+	
+	protected abstract Label label();
+
+	@Override
+	public Action load(JSONObject json) {
+		super.load(json);
+		text = json.getString(TEXT);
+		return this;	
+	}
+	
+	@Override
+	public Window properties(HashMap<String, String> params) {
+		Window win = super.properties(params);
+		Form form = new Form("action-prop-form-"+id);
+		new Input(REALM,REALM_ACTIONS).hideIn(form);
+		new Input(ID,params.get(ID)).hideIn(form);
+		new Input(ACTION,ACTION_UPDATE).hideIn(form);
+		new Input(CONTEXT,params.get(CONTEXT)).hideIn(form);
+		new Input(TEXT, text).addTo(label()).addTo(form);
+		new Button(t("Apply"),form).addTo(form).addTo(win);		
+		return win;
+	}
+	
+	@Override
+	protected Object update(HashMap<String, String> params) {
+		LOG.debug("update: {}",params);
+		String error = null;
+		text = params.get(TEXT);
+		Window win = properties(params);
+		return new Tag("span").content(error).addTo(win);
+	}
+}

src/main/java/de/srsoftware/web4rail/actions/TriggerContact.java

@@ -19,10 +19,7 @@ public class TriggerContact extends Action {
 	
 	@Override
 	public boolean fire(Context context) throws IOException {
-		if (isSet(contact)) {
-			System.err.println("triggering "+contact);
-			contact.trigger(200);
-		}
+		if (isSet(contact)) return contact.trigger(200);
 		return false;
 	}
 	

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

@@ -304,7 +304,7 @@ public abstract class Block extends StretchableTile implements Comparable<Block>
 		return this;
 	}
 	
-	public static Tag selector(Block preselected,Collection<Block> exclude) {
+	public static Select selector(Block preselected,Collection<Block> exclude) {
 		if (isNull(exclude)) exclude = new Vector<Block>();
 		Select select = new Select(Block.class.getSimpleName());
 		new Tag("option").attr("value","0").content(t("unset")).addTo(select);

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

@@ -204,7 +204,7 @@ public class Contact extends Tile{
 		return trigger;
 	}
 	
-	public void trigger(int duration) throws IOException {
+	public boolean trigger(int duration) throws IOException {
 		activate(true);
 		new Thread() {
 			public void run() {
@@ -214,6 +214,7 @@ public class Contact extends Tile{
 				} catch (Exception e) {}
 			}
 		}.start();
+		return true;
 	}
 	@Override
 	public Tile update(HashMap<String, String> params) throws IOException {

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

@@ -0,0 +1,75 @@
+package de.srsoftware.web4rail.tiles;
+
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Map.Entry;
+
+import org.json.JSONObject;
+
+import de.srsoftware.tools.Tag;
+import de.srsoftware.web4rail.tags.Form;
+import de.srsoftware.web4rail.tags.Input;
+import de.srsoftware.web4rail.tags.Label;
+
+public class TextDisplay extends StretchableTile {
+	private static final String TEXT = "text";
+	private String text = "Hello, world!";
+	
+	@Override
+	public JSONObject json() {
+		return super.json().put(TEXT, text);
+	}
+	
+	@Override
+	protected Tile load(JSONObject json) throws IOException {
+		super.load(json);
+		if (json.has(TEXT))	text = json.getString(TEXT);
+		return this;
+	}
+	
+	@Override
+	public Tag tag(Map<String, Object> replacements) throws IOException {
+		if (isNull(replacements)) replacements = new HashMap<String, Object>();
+		replacements.put("%text%",text);
+		return super.tag(replacements);
+	}
+	
+	@Override
+	public Form propForm(String id) {
+		noTrack();
+		Form form = super.propForm(id);
+		new Tag("h4").content(t("Text")).addTo(form);
+		
+		new Input(TEXT, text).addTo(new Label(t("Text")+":"+NBSP)).addTo(new Tag("p")).addTo(form);
+		
+		return form;
+	}
+
+	@Override
+	protected String stretchType() {
+		return t("Width");
+	}
+
+	public TextDisplay text(String tx) {
+		text = tx;
+		return this;
+	}
+	
+	@Override
+	public Tile update(HashMap<String, String> params) throws IOException {
+		for (Entry<String, String> entry : params.entrySet()) {
+			switch (entry.getKey()) {
+				case TEXT:
+					text(entry.getValue());
+					break;
+			}
+		}
+		return super.update(params);
+	}
+	
+	@Override
+	public int width() {
+		return stretch;
+	}
+}

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

@@ -58,6 +58,7 @@ public abstract class Tile extends BaseClass{
 	private   static final String Y          = "y";
 	
 	private   boolean         disabled  = false;
+	private   boolean         isTrack   = true;
 	private   int             length    = DEFAUT_LENGTH;
 	protected Direction       oneWay    = null;
 	protected Route           route     = null;
@@ -142,7 +143,7 @@ public abstract class Tile extends BaseClass{
 	}
 	
 	public Tile length(int newLength) {
-		length = newLength;
+		length = Math.max(0, newLength);
 		return this;
 	}
 	
@@ -188,6 +189,10 @@ public abstract class Tile extends BaseClass{
 		return this;
 	}
 	
+	protected void noTrack() {
+		isTrack  = false;
+	}
+		
 	public Tile position(int x, int y) {
 		this.x = x;
 		this.y = y;
@@ -242,12 +247,14 @@ public abstract class Tile extends BaseClass{
 		if (isSet(route)) link("p",Map.of(REALM,REALM_ROUTE,ID,route.id(),ACTION,ACTION_PROPS),t("Locked by {}",route)).addTo(window);
 
 		Form form = propForm("tile-properties-"+id());
-		new Tag("h4").content(t("Length")).addTo(form);
-		new Input(LENGTH,length).numeric().addTo(new Label(t("Length")+":"+NBSP)).addTo(form);
-		new Tag("h4").content(t("Availability")).addTo(form);
-		Checkbox cb = new Checkbox(DISABLED, t("disabled"), disabled);
-		if (disabled) cb.clazz("disabled");
-		cb.addTo(form);
+		if (isTrack) {
+			new Tag("h4").content(t("Length")).addTo(form);		
+			new Input(LENGTH,length).numeric().addTo(new Label(t("Length")+":"+NBSP)).addTo(form);
+			new Tag("h4").content(t("Availability")).addTo(form);
+			Checkbox cb = new Checkbox(DISABLED, t("disabled"), disabled);
+			if (disabled) cb.clazz("disabled");
+			cb.addTo(form);
+		}
 		new Button(t("Apply"),form).addTo(form);
 		form.addTo(window);