Add LoggingDemo to demonstrate LoggingPanel and SwingConsolePane

Author: maarzt

src/test/java/org/scijava/ui/swing/console/LoggingDemo.java

@@ -0,0 +1,99 @@
+package org.scijava.ui.swing.console;
+
+import net.miginfocom.swing.MigLayout;
+import org.scijava.Context;
+import org.scijava.command.Command;
+import org.scijava.command.CommandService;
+import org.scijava.log.DefaultLogger;
+import org.scijava.log.LogService;
+import org.scijava.log.LogSource;
+import org.scijava.log.Logger;
+import org.scijava.plugin.Parameter;
+import org.scijava.thread.ThreadService;
+import org.scijava.ui.UIService;
+
+import javax.swing.*;
+import java.awt.*;
+
+/**
+ * {@link LoggingDemo} demonstrate the capabilitie of {@link SwingConsolePane}
+ * and {@link LoggingPanel}
+ *
+ * @author Matthias Arzt
+ */
+public class LoggingDemo {
+
+	public static void main(String... args) throws InterruptedException {
+		Context context = new Context();
+		UIService ui = context.service(UIService.class);
+		ui.showUI();
+		CommandService commandService = context.service(CommandService.class);
+		commandService.run(PluginThatLogs.class, true);
+		commandService.run(LoggingLoop.class, true);
+	}
+
+	public static class LoggingLoop implements Command {
+
+		@Parameter
+		private Logger logger;
+
+		@Override
+		public void run() {
+			while (true) {
+				logger.warn("Message Text");
+				System.out.println("Hello World");
+				try {
+					Thread.sleep(1000);
+				} catch (InterruptedException e) {
+					logger.warn(e);
+				}
+			}
+		}
+	}
+
+	public static class PluginThatLogs implements Command {
+
+		@Parameter
+		private Context context;
+
+		@Parameter
+		private Logger logger;
+
+		@Parameter
+		private LogService logService;
+
+		private Logger privateLogger = new DefaultLogger(ignore -> {}, LogSource.newRoot(), 100);
+
+		@Override
+		public void run() {
+			LoggingPanel panel = new LoggingPanel(context.service(ThreadService.class));
+			logger.addLogListener(panel);
+			privateLogger.addLogListener(panel);
+
+			JFrame frame = new JFrame("Plugin that logs");
+			frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
+			frame.setLayout(new MigLayout("","[grow]","[][grow]"));
+			frame.add(newButton("both log", () -> writeToLogger(logger)), "split");
+			frame.add(newButton("main log", () -> writeToLogger(logService)));
+			frame.add(newButton("private log", () -> writeToLogger(privateLogger)), "wrap");
+			frame.add(panel, "grow");
+			frame.pack();
+			frame.setVisible(true);
+		}
+
+		private void writeToLogger(Logger logger) {
+			logger.error("Error message test");
+			logger.warn("Text describing a warning");
+			logger.info("An Information");
+			logger.debug("Something help debugging");
+			logger.trace("Trace everything");
+			logger.log(42, "Whats the best log level");
+		}
+
+		private Component newButton(String title, Runnable action) {
+			JButton button = new JButton(title);
+			button.addActionListener(a -> action.run());
+			return button;
+		}
+	}
+}