[TASK] Make observer window always scroll horizontally

src/main/java/lu/jpt/csparqltest/Main.java

@@ -6,7 +6,6 @@ import org.apache.log4j.PropertyConfigurator;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import eu.larkc.csparql.core.engine.ConsoleFormatter;
 import eu.larkc.csparql.core.engine.CsparqlEngine;
 import eu.larkc.csparql.core.engine.CsparqlEngineImpl;
 import eu.larkc.csparql.core.engine.CsparqlQueryResultProxy;
@@ -55,8 +54,8 @@ public class Main {
 		
 		
 		// Debugging: Needed to verify which engine is being used
-		//logger.debug("CWD: " + System.getProperty("user.dir"));
+		logger.debug("CWD: " + System.getProperty("user.dir"));
-		//logger.debug("Engine from: " + engine.getClass().getProtectionDomain().getCodeSource());
+		logger.debug("Engine from: " + engine.getClass().getProtectionDomain().getCodeSource());
 		
 		// Create and register stream generator at specific URI
 		//RentACarSimulation simulation = new RentACarSimulation();
@@ -72,7 +71,7 @@ public class Main {
 		testGeneratorThread.start();
 
 		// Now build a query to run - interchangeable
-		String query = Main.getSPO();
+		String query = Main.getPatternANOTBCQuery();
 		//String query = RentACarSimulation.getEventUsingBackgroundKnowledge();
 		
 		// Create a result proxy by registering the query at the engine
@@ -98,8 +97,7 @@ public class Main {
 			logger.error(e.getStackTrace().toString());
 		}*/
 		
-		// Add ConsoleFormatter as observer so it gets notified of every query result
+		// Add observer to query result proxy
-		resultProxy.addObserver(new ConsoleFormatter());
 		resultProxy.addObserver(Main.observerWindow);
 		
 		// Let it all run for some time
@@ -122,8 +120,6 @@ public class Main {
 		testGeneratorThread.interrupt();
 		engine.unregisterStream(testStreamGenerator.getIRI());
 
-		// That's it!
-		System.exit(0);
 	}
 	
 	private static String getSPO() {

src/main/java/lu/jpt/csparqltest/gui/TextObserverWindow.java

@@ -4,6 +4,7 @@ import java.awt.BorderLayout;
 import java.awt.Color;
 import java.awt.Container;
 import java.awt.Dimension;
+import java.awt.Font;
 import java.awt.Insets;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
@@ -13,8 +14,11 @@ import java.util.Observable;
 import java.util.Observer;
 import java.util.StringTokenizer;
 
+import javax.swing.JButton;
 import javax.swing.JCheckBox;
 import javax.swing.JFrame;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
 import javax.swing.JScrollPane;
 import javax.swing.JTextPane;
 import javax.swing.text.AttributeSet;
@@ -23,8 +27,6 @@ import javax.swing.text.SimpleAttributeSet;
 import javax.swing.text.StyleConstants;
 import javax.swing.text.StyleContext;
 
-import com.sun.xml.internal.ws.resources.TubelineassemblyMessages;
-
 import eu.larkc.csparql.cep.api.RdfQuadruple;
 import eu.larkc.csparql.common.RDFTable;
 import eu.larkc.csparql.common.RDFTuple;
@@ -126,10 +128,30 @@ public class TextObserverWindow extends JFrame implements Observer {
 		Container contentPane = this.getContentPane();
 		contentPane.setLayout(new BorderLayout());
 		
-		// Get a TextPane ready
+		// Add a title label for convenience
-		this.textPane = new JTextPane();
+		JLabel titleLabel = new JLabel(title);
+		Font labelFont = titleLabel.getFont();
+		titleLabel.setFont(new Font(labelFont.getName(), Font.PLAIN, 18));
+		contentPane.add(titleLabel, BorderLayout.NORTH);
+		
+		// Get a TextPane ready - a little hack to make it always scroll horizontally
+		this.textPane = new JTextPane() {
+			private static final long serialVersionUID = 1L;
+
+			public boolean getScrollableTracksViewportWidth() {
+				return false;
+			}
+
+			public void setSize(Dimension dimension) {
+				if (dimension.width < getParent().getSize().width) {
+					dimension.width = getParent().getSize().width;
+				}
+				super.setSize(dimension);
+			}
+		};
 		this.textPane.setEnabled(true);
 		this.textPane.setFocusable(false);
+		this.textPane.setEditable(true);
 		this.textPane.setAutoscrolls(true);
 		this.textPane.setMargin(new Insets(5, 5, 5, 5));
 		contentPane.add(this.textPane, BorderLayout.CENTER);
@@ -137,8 +159,13 @@ public class TextObserverWindow extends JFrame implements Observer {
 		// Add a ScrollPane
 		JScrollPane scrollPane = new JScrollPane(this.textPane);
 		scrollPane.setPreferredSize(new Dimension(800, 500));
+		scrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
+		scrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
 		contentPane.add(scrollPane, BorderLayout.CENTER);
 		
+		// Bottom Panel contains control elements
+		JPanel bottomPanel = new JPanel();
+		
 		// Add a checkbox to toggle autoscroll
 		JCheckBox autoscrollCheckbox = new JCheckBox();
 		autoscrollCheckbox.setText("Automatically scroll to bottom");
@@ -151,8 +178,35 @@ public class TextObserverWindow extends JFrame implements Observer {
 				textObserverWindow.setAutoScrollToBottom(checkBox.isSelected());
 			}
 		});
-		contentPane.add(autoscrollCheckbox, BorderLayout.SOUTH);
+		bottomPanel.add(autoscrollCheckbox);
-				
+		
+		// Add buttons to increase/decrease font size
+		JButton increaseFontSizeButton = new JButton("+");
+		increaseFontSizeButton.addActionListener(new ActionListener() {
+			@Override
+			public void actionPerformed(ActionEvent e) {
+				Font currentFont = textObserverWindow.textPane.getFont();
+				textObserverWindow.textPane.setFont(
+					new Font(currentFont.getName(), currentFont.getStyle(), currentFont.getSize()+1)
+				);
+			}
+		});
+		
+		bottomPanel.add(increaseFontSizeButton);
+		JButton decreaseFontSizeButton = new JButton("-");
+		decreaseFontSizeButton.addActionListener(new ActionListener() {
+			@Override
+			public void actionPerformed(ActionEvent e) {
+				Font currentFont = textObserverWindow.textPane.getFont();
+				textObserverWindow.textPane.setFont(
+					new Font(currentFont.getName(), currentFont.getStyle(), currentFont.getSize()-1)
+				);
+			}
+		});
+		bottomPanel.add(decreaseFontSizeButton);
+		
+		// Add bottomPanel to contentPane
+		contentPane.add(bottomPanel, BorderLayout.SOUTH);
 		this.setVisible(true);
 		this.pack();
 	}
@@ -248,7 +302,7 @@ public class TextObserverWindow extends JFrame implements Observer {
 				tokenIndex++;
 			}
 		}
-		this.showText("-------------------------------------------------------------------------------- \n", Color.BLACK);
+		this.showText("End of results ----------------------------------------------------------------- \n", Color.BLACK);
 	}
 	
 	/**