From 3aec46c5bb839d171f5cda61d6e63890ac16224a Mon Sep 17 00:00:00 2001
From: codistmonk <codistmonk@7cbf5e2b-b55d-4b93-acdd-c0d7b961df51>
Date: Sat, 3 Jul 2010 14:41:12 +0000
Subject: [PATCH] [SubtitlesAdjuster] Added SubtitlesAdjusterTools.newListener
 to dynamically create listeners using proxy objects.

git-svn-id: https://aprog.svn.sourceforge.net/svnroot/aprog/trunk@87 7cbf5e2b-b55d-4b93-acdd-c0d7b961df51
---
 .../aprog/subtitlesadjuster/Components.java        | 21 ++----
 .../subtitlesadjuster/SubtitlesAdjusterTools.java  | 84 ++++++++++++++++++++++
 2 files changed, 89 insertions(+), 16 deletions(-)

diff --git a/SubtitlesAdjuster/src/net/sourceforge/aprog/subtitlesadjuster/Components.java b/SubtitlesAdjuster/src/net/sourceforge/aprog/subtitlesadjuster/Components.java
index ed10e4f..319dc60 100644
--- a/SubtitlesAdjuster/src/net/sourceforge/aprog/subtitlesadjuster/Components.java
+++ b/SubtitlesAdjuster/src/net/sourceforge/aprog/subtitlesadjuster/Components.java
@@ -49,6 +49,7 @@ import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
+import java.awt.event.WindowListener;
 import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.PrintStream;
@@ -196,26 +197,14 @@ public final class Components {
         result.setJMenuBar(newMenuBar(context));
         result.add(newMainPanel(context));
 
-        result.addWindowListener(new WindowAdapter() {
-
-            @Override
-            public final void windowClosing(final WindowEvent event) {
-                quit(context);
-            }
-
-        });
+        result.addWindowListener(newListener(WindowListener.class, "windowClosing",
+                Actions.class, "quit", context));
 
         invokeOnVariableChanged(context, FILE, Actions.class, "updateMainFrameTitle", context);
         invokeOnVariableChanged(context, FILE_MODIFIED, Actions.class, "updateMainFrameTitle", context);
 
-        Translator.getDefaultTranslator().addListener(new Translator.Listener() {
-
-            @Override
-            public final void localeChanged(final LocaleChangedEvent event) {
-                packAndUpdateMinimumSize(result);
-            }
-
-        });
+        Translator.getDefaultTranslator().addListener(newListener(Translator.Listener.class, "localeChanged",
+                SwingTools.class, "packAndUpdateMinimumSize", result));
 
         return center(packAndUpdateMinimumSize(result));
     }
diff --git a/SubtitlesAdjuster/src/net/sourceforge/aprog/subtitlesadjuster/SubtitlesAdjusterTools.java b/SubtitlesAdjuster/src/net/sourceforge/aprog/subtitlesadjuster/SubtitlesAdjusterTools.java
index 0e2b81f..6440088 100644
--- a/SubtitlesAdjuster/src/net/sourceforge/aprog/subtitlesadjuster/SubtitlesAdjusterTools.java
+++ b/SubtitlesAdjuster/src/net/sourceforge/aprog/subtitlesadjuster/SubtitlesAdjusterTools.java
@@ -25,6 +25,11 @@
 package net.sourceforge.aprog.subtitlesadjuster;
 
 import static net.sourceforge.aprog.i18n.Messages.*;
+import static net.sourceforge.aprog.tools.Tools.*;
+
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+import java.lang.reflect.Proxy;
 
 import javax.swing.JMenuItem;
 import javax.swing.KeyStroke;
@@ -135,4 +140,83 @@ public final class SubtitlesAdjusterTools {
                 .setShortcut(shortcut)));
     }
 
+    /**
+     *
+     * @param <L> The listener type
+     * @param listenerClass
+     * <br>Not null
+     * @param listenerMethodName
+     * <br>Not null
+     * @param objectOrClass
+     * <br>Not null
+     * @param methodName
+     * <br>Not null
+     * @param arguments
+     * <br>Not null
+     * @return
+     * <br>Not null
+     * <br>New
+     */
+    @SuppressWarnings("unchecked")
+    public static final <L> L newListener(final Class<L> listenerClass, final String listenerMethodName,
+            final Object objectOrClass, final String methodName, final Object... arguments) {
+        return (L) Proxy.newProxyInstance(getCallerClass().getClassLoader(), array(listenerClass),
+                new ListenerInvocationHandler(listenerMethodName, objectOrClass, methodName, arguments));
+    }
+
+    /**
+     *
+     * @author codistmonk (creation 2010-07-03)
+     */
+    public static final class ListenerInvocationHandler implements InvocationHandler {
+
+        private final String listenerMethodName;
+
+        private final Object objectOrClass;
+
+        private final String methodName;
+
+        private final Object[] arguments;
+
+        /**
+         *
+         * @param listenerMethodName
+         * <br>Not null
+         * <br>Shared
+         * @param objectOrClass
+         * <br>Not null
+         * <br>Shared
+         * @param methodName
+         * <br>Not null
+         * <br>Shared
+         * @param arguments
+         * <br>Not null
+         * <br>Shared
+         */
+        public ListenerInvocationHandler(final String listenerMethodName,
+                final Object objectOrClass, final String methodName, final Object... arguments) {
+            this.listenerMethodName = listenerMethodName;
+            this.objectOrClass = objectOrClass;
+            this.methodName = methodName;
+            this.arguments = arguments;
+        }
+
+        @Override
+        public final Object invoke(final Object proxy, final Method method, final Object[] arguments) throws Throwable {
+            debugPrint(
+                    "\n", method,
+                    "\n", method.getDeclaringClass(),
+                    "\n", method.getDeclaringClass().isAssignableFrom(this.getClass()));
+
+            if (method.getName().equals(this.listenerMethodName)) {
+                return Tools.invoke(this.objectOrClass, this.methodName, this.arguments);
+            } else if (method.getDeclaringClass().isAssignableFrom(this.getClass())) {
+                return method.invoke(this, arguments);
+            }
+
+            return null;
+        }
+
+    }
+
 }
-- 
2.11.4.GIT