working on stretchable tiles

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

@@ -1,5 +1,54 @@
 package de.srsoftware.web4rail.tiles;
 
+import java.util.HashMap;
+import java.util.Map.Entry;
+
+import de.srsoftware.tools.Tag;
+import de.srsoftware.web4rail.Window;
+import de.srsoftware.web4rail.tags.Form;
+
 public abstract class StretchableTile extends Tile {
+	private static final String LENGTH = "length";
 	public int length = 1;
+	
+	public Tag propMenu() {
+		Window menu = new Window("tile-properties",t("Properties of {} @ ({},{})",getClass().getSimpleName(),x,y));
+		Form form = new Form();
+		new Tag("input").attr("type", "hidden").attr("name","action").attr("value", "update").addTo(form);
+		new Tag("input").attr("type", "hidden").attr("name","x").attr("value", x).addTo(form);
+		new Tag("input").attr("type", "hidden").attr("name","y").attr("value", y).addTo(form);
+
+		Tag label = new Tag("label").content(t("length:"));
+		new Tag("input").attr("type", "number").attr("name","length").attr("value", length).addTo(label);		
+		label.addTo(form);
+		
+		new Tag("button").attr("type", "submit").content(t("save")).addTo(form);
+		form.addTo(menu);
+		return menu;
+	}
+	
+	private void setLength(String value) {
+		try {
+			setLength(Integer.parseInt(value));
+		} catch (NumberFormatException nfe) {
+			LOG.warn("{} is not a valid length!",value);
+		}
+	}
+
+	public void setLength(int len) {
+		this.length = Math.max(1, len);
+	}
+	
+	@Override
+	public Tile update(HashMap<String, String> params) {
+		super.update(params);
+		for (Entry<String, String> entry : params.entrySet()) {
+			switch (entry.getKey()) {
+				case LENGTH:
+					setLength(entry.getValue());
+					break;
+			}
+		}
+		return this;
+	}
 }