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@@ -1,608 +0,0 @@ |
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/* |
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* The Apache Software License, Version 1.1 |
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* |
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* Copyright (c) 1999, 2000 The Apache Software Foundation. All rights |
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* reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. The end-user documentation included with the redistribution, if |
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* any, must include the following acknowlegement: |
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* "This product includes software developed by the |
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* Apache Software Foundation (http://www.apache.org/)." |
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* Alternately, this acknowlegement may appear in the software itself, |
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* if and wherever such third-party acknowlegements normally appear. |
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* |
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* 4. The names "The Jakarta Project", "Ant", and "Apache Software |
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* Foundation" must not be used to endorse or promote products derived |
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* from this software without prior written permission. For written |
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* permission, please contact apache@apache.org. |
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* |
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* 5. Products derived from this software may not be called "Apache" |
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* nor may "Apache" appear in their names without prior written |
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* permission of the Apache Group. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This software consists of voluntary contributions made by many |
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* individuals on behalf of the Apache Software Foundation. For more |
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* information on the Apache Software Foundation, please see |
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* <http://www.apache.org/>. |
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*/ |
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package org.apache.tools.ant.gui.customizer; |
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import org.apache.tools.ant.gui.util.LabelFieldGBC; |
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import java.lang.reflect.*; |
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import java.beans.*; |
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import javax.swing.*; |
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import java.util.*; |
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import java.io.File; |
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import java.awt.*; |
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/** |
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* Widget for dynamically constructing a property editor based on the |
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* an Object's BeanInfo. Essentially a property sheet. |
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* |
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* @version $Revision$ |
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* @author Simeon Fitch |
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*/ |
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public class DynamicCustomizer extends JPanel implements Customizer, Scrollable { |
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static { |
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PropertyEditorManager.registerEditor( |
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String.class, StringPropertyEditor.class); |
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PropertyEditorManager.registerEditor( |
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String[].class, StringArrayPropertyEditor.class); |
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PropertyEditorManager.registerEditor( |
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int.class, IntegerPropertyEditor.class); |
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PropertyEditorManager.registerEditor( |
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Integer.class, IntegerPropertyEditor.class); |
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PropertyEditorManager.registerEditor( |
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double.class, DoublePropertyEditor.class); |
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PropertyEditorManager.registerEditor( |
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Double.class, DoublePropertyEditor.class); |
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PropertyEditorManager.registerEditor( |
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Properties.class, PropertiesPropertyEditor.class); |
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PropertyEditorManager.registerEditor( |
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File.class, FilePropertyEditor.class); |
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PropertyEditorManager.registerEditor( |
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Object.class, ObjectPropertyEditor.class); |
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} |
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/** Property name that PropertyDescriptors can save in their property |
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* dictionaries for for specifiying a display sorting order. The value |
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* sould be of type Integer. */ |
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public static final String SORT_ORDER = "sortOrder"; |
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/** The type that this editor instance can handle. */ |
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private Class _type = null; |
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/** The value currently being edited. */ |
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private Object _value = null; |
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/** Mapping from PropertyDescriptor to PropertyEditor. */ |
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private Map _prop2Editor = new HashMap(); |
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/** Mapping from PropertyEditor to field PropertyDescriptor. */ |
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private Map _editor2Prop = new HashMap(); |
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/** Listener for receiving change events from the editors. */ |
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private EditorChangeListener _eListener = new EditorChangeListener(); |
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/** Read-only flag. */ |
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private boolean _readOnly = false; |
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/** List of property change listeners interested when the bean |
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* being edited has been changed. */ |
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private java.util.List _changeListeners = new LinkedList(); |
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/** Flag to trun off event propogation. */ |
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private boolean _squelchChangeEvents = false; |
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/** |
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* Standard constructor. |
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* |
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* @param type Type that you are going to be creating and editor for. |
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*/ |
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public DynamicCustomizer(Class type) { |
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this(type, false); |
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} |
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/** |
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* Standard constructor. |
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* |
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* @param type Type that you are going to be creating and editor for. |
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* @param readOnly Set to true to create a read-only customizer. |
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*/ |
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public DynamicCustomizer(Class type, boolean readOnly) { |
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super(new GridBagLayout()); |
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_readOnly = readOnly; |
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_type = type; |
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LabelFieldGBC gbc = new LabelFieldGBC(); |
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try { |
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BeanInfo info = Introspector.getBeanInfo(type); |
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// Set up pretty display stuff. |
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setBorder(BorderFactory.createTitledBorder( |
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info.getBeanDescriptor().getDisplayName())); |
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setToolTipText(info.getBeanDescriptor().getShortDescription()); |
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// Get the properties and sort them. |
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PropertyDescriptor[] props = info.getPropertyDescriptors(); |
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Arrays.sort(props, new PropertyComparator()); |
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for(int i = 0; i < props.length; i++) { |
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// Ignore the "class" property, if it is provided. |
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if(props[i].getName().equals("class")) continue; |
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// Create a label for the field. |
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JLabel label = new JLabel(props[i].getDisplayName() + ":"); |
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// Lookup the editor. |
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PropertyEditor editor = getEditorForProperty(props[i]); |
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// Add a listener to the editor so we know when to update |
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// the bean's fields. |
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editor.addPropertyChangeListener(_eListener); |
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// XXX What we need to do right here is provide a component |
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// that makes use of the "paintable" capability of the editor. |
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Component comp = editor.getCustomEditor(); |
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if(comp == null) { |
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comp = new JLabel("<No editor available.>"); |
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((JLabel)comp).setBorder(BorderFactory.createEtchedBorder()); |
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} |
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// See if it is a read-only property. If so, then just |
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// display it. |
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if(_readOnly || props[i].getWriteMethod() == null) { |
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comp.setEnabled(false); |
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} |
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// Setup the accellerator key. |
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label.setLabelFor(comp); |
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label.setDisplayedMnemonic(label.getText().charAt(0)); |
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// Set the tool tip text, if any. |
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String tip = props[i].getShortDescription(); |
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if(tip != null) { |
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label.setToolTipText(tip); |
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if(comp instanceof JComponent) { |
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((JComponent)comp).setToolTipText(tip); |
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} |
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} |
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// Add the label and fields. |
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add(label, gbc.forLabel()); |
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add(comp, gbc.forField()); |
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// Set the mappings between editor and property, etc. for |
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// quick lookup later. |
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_prop2Editor.put(props[i], editor); |
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_editor2Prop.put(editor, props[i]); |
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} |
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// Filler... |
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add(new JLabel(), gbc.forLastLabel()); |
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} |
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catch(Exception ex) { |
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ex.printStackTrace(); |
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} |
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} |
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/** |
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* Set the object to be edited. |
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* |
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* @param value The object to be edited. |
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*/ |
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public void setObject(Object value) { |
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if(!(_type.isInstance(value))) { |
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throw new IllegalArgumentException( |
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value.getClass() + " is not of type " + _type); |
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} |
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_value = value; |
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// Disable event generation. |
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_squelchChangeEvents = true; |
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// Iterate over each property, doing a lookup on the associated editor |
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// and setting the editor's value to the value of the property. |
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Iterator it = _prop2Editor.keySet().iterator(); |
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while(it.hasNext()) { |
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PropertyDescriptor desc = (PropertyDescriptor) it.next(); |
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PropertyEditor editor = (PropertyEditor) _prop2Editor.get(desc); |
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Method reader = desc.getReadMethod(); |
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if(reader != null) { |
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try { |
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Object val = reader.invoke(_value, null); |
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editor.setValue(val); |
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} |
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catch(IllegalAccessException ex) { |
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ex.printStackTrace(); |
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} |
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catch(InvocationTargetException ex) { |
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ex.getTargetException().printStackTrace(); |
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} |
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} |
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} |
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// Enable event generation. |
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_squelchChangeEvents = false; |
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} |
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/** |
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* Get the appropriate editor for the given property. |
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* |
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* @param prop Property to get editor for. |
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* @return Editor to use, or null if none found. |
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*/ |
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private PropertyEditor getEditorForProperty(PropertyDescriptor prop) { |
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PropertyEditor retval = null; |
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Class type = prop.getPropertyEditorClass(); |
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if(type != null) { |
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try { |
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retval = (PropertyEditor) type.newInstance(); |
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} |
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catch(Exception ex) { |
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ex.printStackTrace(); |
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} |
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} |
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// Handle case where there is no special editor |
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// associated with the property. In that case we ask the |
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// PropertyEditor manager for the editor registered for the |
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// given property type. |
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if(retval == null) { |
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Class t = prop.getPropertyType(); |
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if(t != null) { |
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retval = PropertyEditorManager.findEditor(t); |
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} |
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} |
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// In the worse case we resort to the generic editor for Object types. |
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if(retval == null) { |
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retval = PropertyEditorManager.findEditor(Object.class); |
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} |
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return retval; |
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} |
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/** |
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* Add the given listener. Will receive a change event for |
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* changes to the bean being edited. |
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* |
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* @param l Listner to add. |
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*/ |
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public void addPropertyChangeListener(PropertyChangeListener l) { |
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_changeListeners.add(l); |
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} |
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/** |
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* Remove the given property change listener. |
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* |
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* @param l Listener to remove. |
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*/ |
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public void removePropertyChangeListener(PropertyChangeListener l) { |
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_changeListeners.remove(l); |
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} |
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/** |
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* Fire a property change event to each listener. |
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* |
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* @param bean Bean being edited. |
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* @param propName Name of the property. |
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* @param oldValue Old value. |
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* @param newValue New value. |
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*/ |
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protected void firePropertyChange(Object bean, String propName, |
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Object oldValue, Object newValue) { |
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PropertyChangeEvent e = new PropertyChangeEvent( |
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bean, propName, oldValue, newValue); |
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Iterator it = _changeListeners.iterator(); |
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while(it.hasNext()) { |
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PropertyChangeListener l = (PropertyChangeListener) it.next(); |
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l.propertyChange(e); |
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} |
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} |
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/** |
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* Returns the preferred size of the viewport for a view component. |
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* For example the preferredSize of a JList component is the size |
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* required to acommodate all of the cells in its list however the |
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* value of preferredScrollableViewportSize is the size required for |
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* JList.getVisibleRowCount() rows. A component without any properties |
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* that would effect the viewport size should just return |
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* getPreferredSize() here. |
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* |
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* @return The preferredSize of a JViewport whose view is this Scrollable. |
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* @see JViewport#getPreferredSize |
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*/ |
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public Dimension getPreferredScrollableViewportSize() { |
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Dimension size = getPreferredSize(); |
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Dimension retval = new Dimension(); |
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retval.width = size.width > 600 ? 600 : size.width; |
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retval.height = size.height > 400 ? 400 : size.height; |
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return retval; |
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} |
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/** |
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* Components that display logical rows or columns should compute |
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* the scroll increment that will completely expose one new row |
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* or column, depending on the value of orientation. Ideally, |
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* components should handle a partially exposed row or column by |
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* returning the distance required to completely expose the item. |
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* <p> |
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* Scrolling containers, like JScrollPane, will use this method |
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* each time the user requests a unit scroll. |
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* |
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* @param visibleRect The view area visible within the viewport |
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* @param orientation Either SwingConstants.VERTICAL or |
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* SwingConstants.HORIZONTAL. |
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* @param direction Less than zero to scroll up/left, |
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* greater than zero for down/right. |
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* @return The "unit" increment for scrolling in the specified direction |
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* @see JScrollBar#setUnitIncrement |
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*/ |
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public int getScrollableUnitIncrement(Rectangle visibleRect, |
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int orientation, int direction) { |
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return 1; |
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} |
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/** |
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* Components that display logical rows or columns should compute |
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* the scroll increment that will completely expose one block |
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* of rows or columns, depending on the value of orientation. |
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* <p> |
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* Scrolling containers, like JScrollPane, will use this method |
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* each time the user requests a block scroll. |
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* |
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* @param visibleRect The view area visible within the viewport |
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* @param orientation Either SwingConstants.VERTICAL or |
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* SwingConstants.HORIZONTAL. |
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* @param direction Less than zero to scroll up/left, |
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* greater than zero for down/right. |
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* @return The "block" increment for scrolling in the specified direction. |
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* @see JScrollBar#setBlockIncrement |
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*/ |
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public int getScrollableBlockIncrement(Rectangle visibleRect, |
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int orientation, int direction) { |
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return orientation == SwingConstants.VERTICAL ? |
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visibleRect.height / 2 : visibleRect.width / 2; |
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} |
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/** |
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* Return true if a viewport should always force the width of this |
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* Scrollable to match the width of the viewport. For example a noraml |
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* text view that supported line wrapping would return true here, since it |
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* would be undesirable for wrapped lines to disappear beyond the right |
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* edge of the viewport. Note that returning true for a Scrollable |
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* whose ancestor is a JScrollPane effectively disables horizontal |
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* scrolling. |
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* <p> |
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* Scrolling containers, like JViewport, will use this method each |
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* time they are validated. |
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* |
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* @return True if a viewport should force the Scrollables |
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* width to match its own. |
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*/ |
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public boolean getScrollableTracksViewportWidth() { |
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return true; |
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} |
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/** |
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* Return true if a viewport should always force the height of this |
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* Scrollable to match the height of the viewport. For example a |
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* columnar text view that flowed text in left to right columns |
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* could effectively disable vertical scrolling by returning |
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* true here. |
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* <p> |
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* Scrolling containers, like JViewport, will use this method each |
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* time they are validated. |
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* |
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* @return True if a viewport should force the Scrollables |
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* height to match its own. |
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*/ |
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|
public boolean getScrollableTracksViewportHeight() { |
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return false; |
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|
} |
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|
/** Class for receiving change events from the PropertyEditor objects. */ |
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|
private class EditorChangeListener implements PropertyChangeListener { |
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public void propertyChange(PropertyChangeEvent e) { |
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if(_squelchChangeEvents) return; |
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|
PropertyEditor editor = (PropertyEditor) e.getSource(); |
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|
PropertyDescriptor prop = |
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(PropertyDescriptor) _editor2Prop.get(editor); |
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Method writer = prop.getWriteMethod(); |
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|
if(writer != null) { |
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try { |
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Object[] params = { editor.getValue() }; |
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writer.invoke(_value, params); |
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setObject(_value); |
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firePropertyChange( |
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|
_value, prop.getName(), null, editor.getValue()); |
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|
} |
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|
catch(IllegalAccessException ex) { |
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|
ex.printStackTrace(); |
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|
} |
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|
catch(InvocationTargetException ex) { |
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|
ex.getTargetException().printStackTrace(); |
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|
} |
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|
} |
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|
} |
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} |
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|
/** Comparator for sorting PropertyDescriptor values. */ |
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|
private static class PropertyComparator implements Comparator { |
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|
public int compare(Object o1, Object o2) { |
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|
PropertyDescriptor p1 = (PropertyDescriptor)o1; |
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|
PropertyDescriptor p2 = (PropertyDescriptor)o2; |
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|
Integer i1 = (Integer) p1.getValue(SORT_ORDER); |
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|
Integer i2 = (Integer) p2.getValue(SORT_ORDER); |
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|
|
if(i1 == null && i2 == null) { |
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|
return p1.getName().compareTo(p2.getName()); |
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|
} |
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|
else if(i1 != null) { |
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|
return i1.compareTo(i2); |
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|
} |
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|
else { |
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|
return i2.compareTo(i1) * -1; |
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|
} |
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|
} |
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|
} |
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|
|
|
|
|
/*----------------------------------------------------------------------*/ |
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|
|
|
|
/** Class for testing this. */ |
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|
|
private static class TestClass implements Cloneable { |
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|
|
private String _String = "This string is my name."; |
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|
private String[] _StringArray = { "one", "two", "three" }; |
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|
|
private int _int = Integer.MIN_VALUE; |
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|
private Integer _Integer = new Integer(Integer.MAX_VALUE); |
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|
private double _double = Double.MIN_VALUE; |
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|
|
private Double _Double = new Double(Double.MAX_VALUE); |
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|
|
private Properties _Properties = System.getProperties(); |
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|
|
private File _File = new File("/"); |
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|
|
private Object _Object = new Font("Monospaced", Font.PLAIN, 12); |
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|
|
private JButton _button = new JButton("I'm a button!"); |
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|
|
|
|
|
public void setName(String string) { |
|
|
|
_String = string; |
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|
|
} |
|
|
|
public String getName() { |
|
|
|
return _String; |
|
|
|
} |
|
|
|
|
|
|
|
public void setStringArray(String[] array) { |
|
|
|
_StringArray = array; |
|
|
|
} |
|
|
|
public String[] getStringArray() { |
|
|
|
return _StringArray; |
|
|
|
} |
|
|
|
|
|
|
|
public void setInt(int val) { |
|
|
|
_int = val; |
|
|
|
} |
|
|
|
public int getInt() { |
|
|
|
return _int; |
|
|
|
} |
|
|
|
|
|
|
|
public void setInteger(Integer val) { |
|
|
|
_Integer = val; |
|
|
|
} |
|
|
|
public Integer getInteger() { |
|
|
|
return _Integer; |
|
|
|
} |
|
|
|
|
|
|
|
public void setDoub(double val) { |
|
|
|
_double = val; |
|
|
|
} |
|
|
|
public double getDoub() { |
|
|
|
return _double; |
|
|
|
} |
|
|
|
|
|
|
|
public void setDouble(Double val) { |
|
|
|
_Double = val; |
|
|
|
} |
|
|
|
public Double getDouble() { |
|
|
|
return _Double; |
|
|
|
} |
|
|
|
|
|
|
|
public void setProperties(Properties props) { |
|
|
|
_Properties = props; |
|
|
|
} |
|
|
|
public Properties getProperties() { |
|
|
|
return _Properties; |
|
|
|
} |
|
|
|
|
|
|
|
public void setFile(File f) { |
|
|
|
_File = f; |
|
|
|
} |
|
|
|
public File getFile() { |
|
|
|
return _File; |
|
|
|
} |
|
|
|
|
|
|
|
public void setButton(JButton button) { |
|
|
|
_button = button; |
|
|
|
} |
|
|
|
|
|
|
|
public JButton getButton() { |
|
|
|
return _button; |
|
|
|
} |
|
|
|
|
|
|
|
public void setObject(Object o) { |
|
|
|
_Object = o; |
|
|
|
} |
|
|
|
|
|
|
|
public Object getObject() { |
|
|
|
return _Object; |
|
|
|
} |
|
|
|
|
|
|
|
public Object clone() { |
|
|
|
try { |
|
|
|
return super.clone(); |
|
|
|
} |
|
|
|
catch(CloneNotSupportedException ex) { |
|
|
|
return null; |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
/** |
|
|
|
* Test code. |
|
|
|
* |
|
|
|
* @param args First arg is the class name to create |
|
|
|
*/ |
|
|
|
public static void main(String[] args) { |
|
|
|
|
|
|
|
try { |
|
|
|
Class type = null; |
|
|
|
Object instance = null; |
|
|
|
if(args.length > 0) { |
|
|
|
type = Class.forName(args[0]); |
|
|
|
instance = type.newInstance(); |
|
|
|
} |
|
|
|
else { |
|
|
|
type = TestClass.class; |
|
|
|
instance = new TestClass(); |
|
|
|
((TestClass)instance).setObject(new TestClass()); |
|
|
|
} |
|
|
|
|
|
|
|
JFrame f = new JFrame(type.getName()); |
|
|
|
DynamicCustomizer custom = new DynamicCustomizer(type); |
|
|
|
custom.setObject(instance); |
|
|
|
f.getContentPane().add(new JScrollPane(custom)); |
|
|
|
f.pack(); |
|
|
|
f.setVisible(true); |
|
|
|
} |
|
|
|
catch(Exception ex) { |
|
|
|
ex.printStackTrace(); |
|
|
|
} |
|
|
|
} |
|
|
|
} |
metasim
