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src/com/jpexs/decompiler/flash/gui/abc/UndoFixedEditorPane.java

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+/*
+ *  Copyright (C) 2010-2014 JPEXS
+ * 
+ *  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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+package com.jpexs.decompiler.flash.gui.abc;
+
+import com.jpexs.decompiler.flash.configuration.Configuration;
+import java.awt.event.KeyEvent;
+import javax.swing.JEditorPane;
+import javax.swing.text.Document;
+import jsyntaxpane.SyntaxDocument;
+
+/**
+ *
+ * @author JPEXS
+ */
+public class UndoFixedEditorPane extends JEditorPane {
+
+    @Override
+    public void setText(String t) {
+        if (getText() != t) {
+            super.setText(t);
+            clearUndos();
+        }
+    }
+
+    public void setText(String t, String contentType) {
+        if (getText() != t) {
+            // OK to check reference equals, because the string object should be the same
+            super.setText(null);
+            if (t.length() > Configuration.syntaxHighlightLimit.get()) {
+                setContentType("text/plain");
+            } else {
+                if (!getContentType().equals(contentType)) {
+                    setContentType(contentType);
+                }
+            }
+            super.setText(t);
+            clearUndos();
+        }
+    }
+
+    @Override
+    protected void processKeyEvent(KeyEvent ke) {
+        if (!isEditable()) {
+            // disable Ctrl-E: delete line
+            // and Ctrl-H: Search and replace
+            if ((ke.getKeyCode() == KeyEvent.VK_E && ke.isControlDown())
+                    || (ke.getKeyCode() == KeyEvent.VK_H && ke.isControlDown())) {
+                return;
+            }
+        }
+
+        super.processKeyEvent(ke);
+    }
+
+    public void clearUndos() {
+        Document doc = getDocument();
+        if (doc instanceof SyntaxDocument) {
+            SyntaxDocument sdoc = (SyntaxDocument) doc;
+            sdoc.clearUndos();
+        }
+    }
+}