1 files changed, 81 insertions, 0 deletions
diff --git a/src/proguard/gui/TextAreaOutputStream.java b/src/proguard/gui/TextAreaOutputStream.java
new file mode 100644
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+++ b/src/proguard/gui/TextAreaOutputStream.java
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+/*
+ * ProGuard -- shrinking, optimization, obfuscation, and preverification
+ *             of Java bytecode.
+ *
+ * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+package proguard.gui;
+
+import javax.swing.*;
+import java.io.*;
+import java.lang.reflect.InvocationTargetException;
+
+
+/**
+ * This <code>PrintStream</code> appends its output to a given text area.
+ *
+ * @author Eric Lafortune
+ */
+final class TextAreaOutputStream extends FilterOutputStream implements Runnable
+{
+    private final JTextArea textArea;
+
+
+    public TextAreaOutputStream(JTextArea textArea)
+    {
+        super(new ByteArrayOutputStream());
+
+        this.textArea = textArea;
+    }
+
+
+    // Implementation for FilterOutputStream.
+
+    public void flush() throws IOException
+    {
+        super.flush();
+
+        try
+        {
+            // Append the accumulated buffer contents to the text area.
+            SwingUtil.invokeAndWait(this);
+        }
+        catch (Exception e)
+        {
+            // Nothing.
+        }
+    }
+
+
+    // Implementation for Runnable.
+
+    public void run()
+    {
+        ByteArrayOutputStream out = (ByteArrayOutputStream)super.out;
+
+        // Has any new text been written?
+        String text = out.toString();
+        if (text.length() > 0)
+        {
+            // Append the accumulated text to the text area.
+            textArea.append(text);
+
+            // Clear the buffer.
+            out.reset();
+        }
+    }
+}