added Open Log File Location

src/main/java/com/marginallyclever/ro3/apps/actions/AddNode.java

@@ -20,10 +20,10 @@ public class AddNode<T extends Node> extends AbstractAction {
 
     public AddNode(NodeTreeView treeView) {
         super();
+        this.treeView = treeView;
         putValue(Action.NAME,"Add");
         putValue(SMALL_ICON,new ImageIcon(Objects.requireNonNull(getClass().getResource("icons8-add-16.png"))));
         putValue(SHORT_DESCRIPTION,"Add a new instance of a Node to every selected branches of the tree.");
-        this.treeView = treeView;
     }
 
     /**

src/main/java/com/marginallyclever/ro3/apps/logpanel/LogPanel.java

@@ -2,41 +2,57 @@
 
 import ch.qos.logback.classic.Logger;
 import ch.qos.logback.classic.LoggerContext;
+import ch.qos.logback.classic.spi.ILoggingEvent;
+import ch.qos.logback.core.Appender;
+import ch.qos.logback.core.FileAppender;
 import com.marginallyclever.ro3.apps.DockingPanel;
 import org.slf4j.LoggerFactory;
 
 import javax.swing.*;
 import java.awt.*;
+import java.io.File;
+import java.io.IOException;
+import java.lang.module.Configuration;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Iterator;
 import java.util.Locale;
+import java.util.Objects;
 import java.util.Properties;
 
 /**
  * {@link LogPanel} is a read-only panel that contains the log.  It cannot be derived from {@link DockingPanel}
  * because it is created before {@link ModernDocking.app.Docking} is initialized.
  */
 public class LogPanel extends JPanel {
+    private static final org.slf4j.Logger logger = LoggerFactory.getLogger(LogPanel.class);
     private final JTextArea logArea = new JTextArea();
 
     public LogPanel() {
         super(new BorderLayout());
 
+        JToolBar toolbar = new JToolBar();
+        toolbar.setFloatable(false);
+        toolbar.add(new JButton(new OpenLogFileLocation()));
+        add(toolbar, BorderLayout.NORTH);
+
         logArea.setEditable(false);
         JScrollPane scroll = new JScrollPane();
         scroll.setViewportView(logArea);
         add(scroll, BorderLayout.CENTER);
 
         // append log events to this panel
         LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();
-        Logger logger = (Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
+        Logger rootLogger = (Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
         LogPanelAppender appender = new LogPanelAppender(this);
         appender.setContext(lc);
-        logger.addAppender(appender);
+        rootLogger.addAppender(appender);
         appender.start();
 
-        reportSystemInfo(logger);
+        reportSystemInfo();
     }
 
-    private void reportSystemInfo(Logger logger) {
+    private void reportSystemInfo() {
         logger.info("------------------------------------------------");
         Properties p = System.getProperties();
         for(String n : p.stringPropertyNames()) {

src/main/java/com/marginallyclever/ro3/apps/logpanel/OpenLogFileLocation.java

@@ -0,0 +1,57 @@
+package com.marginallyclever.ro3.apps.logpanel;
+
+import ch.qos.logback.classic.Logger;
+import ch.qos.logback.classic.spi.ILoggingEvent;
+import ch.qos.logback.core.Appender;
+import ch.qos.logback.core.FileAppender;
+import org.slf4j.LoggerFactory;
+
+import javax.swing.*;
+import java.awt.*;
+import java.io.File;
+import java.io.IOException;
+import java.util.Iterator;
+import java.util.Objects;
+
+public class OpenLogFileLocation extends AbstractAction {
+    private final org.slf4j.Logger logger = LoggerFactory.getLogger(OpenLogFileLocation.class);
+
+    public OpenLogFileLocation() {
+        super();
+        putValue(Action.NAME,"Open Log File Location");
+        putValue(Action.SMALL_ICON,new ImageIcon(Objects.requireNonNull(getClass().getResource("icons8-folder-16.png"))));
+        putValue(Action.SHORT_DESCRIPTION,"Open the folder containing the log file.");
+    }
+
+    @Override
+    public void actionPerformed(java.awt.event.ActionEvent e) {
+        String logFileName = getLogFile();
+        if(logFileName==null) {
+            logger.error("Failed to find log file.");
+            return;
+        }
+
+        logger.debug("Opening log file location: "+logFileName);
+        try {
+            File file = new File(logFileName);
+            String absolutePath = file.getAbsolutePath();
+            File parentDirectory = new File(absolutePath).getParentFile();
+            Desktop.getDesktop().open(parentDirectory);
+        } catch(IOException ex) {
+            logger.error("Failed to open log file location.",ex);
+        }
+    }
+
+    private String getLogFile() {
+        Logger logger = (Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
+
+        for (Iterator<Appender<ILoggingEvent>> it = logger.iteratorForAppenders(); it.hasNext(); ) {
+            Appender<ILoggingEvent> appender = it.next();
+            if (appender instanceof FileAppender<ILoggingEvent>) {
+                FileAppender<?> fileAppender = (FileAppender<?>) appender;
+                return fileAppender.getFile();
+            }
+        }
+        return null;
+    }
+}