Easy GUI - Library panel

2026-09-28 10:40:43 +00:00 · 2024-10-29 16:55:43 +01:00
parent dd3d095cd7
commit c263aa45a8
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+/*
+ * www.javagl.de - JTreeTable
+ *
+ * Copyright (c) 2016 Marco Hutter - http://www.javagl.de
+ * 
+ * This library is based on the code from the article "Creating TreeTables"
+ * by Sun Microsystems (now known as Oracle). 
+ * 
+ * The original copyright header:
+ *  
+ * Copyright 1998 Sun Microsystems, Inc.  All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   - Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *
+ *   - Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ *   - Neither the name of Sun Microsystems nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package de.javagl.treetable;
+
+import java.util.EventObject;
+
+import javax.swing.CellEditor;
+import javax.swing.event.CellEditorListener;
+import javax.swing.event.ChangeEvent;
+import javax.swing.event.EventListenerList;
+
+
+/**
+ * Abstract base implementation of a CellEditor for a {@link JTreeTable}.
+ */
+public class AbstractCellEditor implements CellEditor
+{
+    /**
+     * The list of CellEditorListeners
+     */
+    private final EventListenerList listenerList = new EventListenerList();
+
+    @Override
+    public Object getCellEditorValue()
+    {
+        return null;
+    }
+
+    @Override
+    public boolean isCellEditable(EventObject e)
+    {
+        return true;
+    }
+
+    @Override
+    public boolean shouldSelectCell(EventObject anEvent)
+    {
+        return false;
+    }
+
+    @Override
+    public boolean stopCellEditing()
+    {
+        return true;
+    }
+
+    @Override
+    public void cancelCellEditing()
+    {
+        // Empty default implementation
+    }
+
+    @Override
+    public final void addCellEditorListener(CellEditorListener l)
+    {
+        listenerList.add(CellEditorListener.class, l);
+    }
+
+    @Override
+    public final void removeCellEditorListener(CellEditorListener l)
+    {
+        listenerList.remove(CellEditorListener.class, l);
+    }
+
+    /**
+     * Notify all listeners that have registered interest for notification on
+     * this event type.
+     */
+    protected final void fireEditingStopped()
+    {
+        Object[] listeners = listenerList.getListenerList();
+        for (int i = listeners.length - 2; i >= 0; i -= 2)
+        {
+            if (listeners[i] == CellEditorListener.class)
+            {
+                ((CellEditorListener) listeners[i + 1])
+                    .editingStopped(new ChangeEvent(this));
+            }
+        }
+    }
+
+    /**
+     * Notify all listeners that have registered interest for notification on
+     * this event type.
+     */
+    protected final void fireEditingCanceled()
+    {
+        Object[] listeners = listenerList.getListenerList();
+        for (int i = listeners.length - 2; i >= 0; i -= 2)
+        {
+            if (listeners[i] == CellEditorListener.class)
+            {
+                ((CellEditorListener) listeners[i + 1])
+                    .editingCanceled(new ChangeEvent(this));
+            }
+        }
+    }
+}