android: AndrOBD library vendored (no submodule, no git link)
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“Naeel”
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/*
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* (C) Copyright 2015 by fr3ts0n <erwin.scheuch-heilig@gmx.at>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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package com.fr3ts0n.pvs.gui;
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import com.fr3ts0n.pvs.ProcessVar;
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import com.fr3ts0n.pvs.PvChangeEvent;
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import com.fr3ts0n.pvs.PvChangeListener;
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import java.awt.Color;
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import java.awt.Component;
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import java.awt.GridBagConstraints;
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import java.awt.GridBagLayout;
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import java.awt.Toolkit;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import java.beans.Customizer;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.Iterator;
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import javax.swing.JComponent;
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import javax.swing.JLabel;
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import javax.swing.JPanel;
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import javax.swing.JTextField;
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import javax.swing.border.LineBorder;
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import javax.swing.text.JTextComponent;
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/**
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* panel class to display / edit a parocess variable and all it's attributes
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*
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* @author $Author: erwin $
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*/
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public class PvDetailPanel extends JPanel
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implements ActionListener, PvChangeListener, Customizer
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{
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/**
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*
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*/
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private static final long serialVersionUID = 740664204205911504L;
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// field background colors
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private static final Color unchangedColor = Color.white;
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private static final Color changedColor = Color.lightGray;
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private static final Color labelColor = Color.lightGray;
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private static final LineBorder lineBorder = new LineBorder(Color.BLACK);
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private final HashMap<Object, JComponent> fields = new HashMap<Object, JComponent>();
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private ProcessVar dataSource = null;
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private boolean editable = false;
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public PvDetailPanel()
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{
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setLayout(new GridBagLayout());
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setBackground(labelColor);
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setBorder(lineBorder);
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}
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/**
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* create a panel of detailed information on current process variable
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*/
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public PvDetailPanel(ProcessVar data)
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{
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this();
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setProcessVar(data);
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}
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/**
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* create a panel of detailed information on current process variable
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*/
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public PvDetailPanel(ProcessVar data, boolean allowEdit)
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{
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this();
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setEditable(allowEdit);
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setProcessVar(data);
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}
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/**
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* set the process var which is assigned to this editor panel
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* this creates all corresponding data fields
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*/
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@SuppressWarnings({"unchecked", "rawtypes"})
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private void setProcessVar(ProcessVar data)
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{
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if (dataSource == null || !dataSource.equals(data))
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{
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// remove all child components, if they have been set already
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if (dataSource != null && !dataSource.equals(data))
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{
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dataSource.removePvChangeListener(this);
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fields.clear();
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removeAll();
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}
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// update data source variable
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dataSource = data;
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// if data source is anything real ...
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if (data != null)
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{
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Object currKey;
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Object currVal;
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JLabel hdrCmp;
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JComponent dataCmp;
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GridBagConstraints attr = new GridBagConstraints();
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// ... fill content panel with data
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ArrayList keys = new ArrayList(data.keySet());
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// sort list alphabetically
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Collections.sort(keys);
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Iterator it = keys.iterator();
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// loop through all attributes
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while (it.hasNext())
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{
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/* set default attributes */
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attr.gridwidth = 1;
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attr.gridheight = 1;
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attr.weightx = 0.0;
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attr.fill = GridBagConstraints.BOTH;
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if ((currKey = it.next()) != null)
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{
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hdrCmp = new JLabel(currKey.toString());
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hdrCmp.setBackground(labelColor);
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hdrCmp.setBorder(lineBorder);
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// setup data component based on it's value
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if ((currVal = data.get(currKey)) == null)
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{
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dataCmp = new JLabel();
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} else
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{
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if (currVal instanceof ProcessVar)
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{
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dataCmp = new PvDetailPanel((ProcessVar) currVal, editable);
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} else
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{
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dataCmp = new JTextField(data.get(currKey).toString());
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((JTextField) dataCmp).setEditable(editable);
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((JTextField) dataCmp).addActionListener(this);
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}
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}
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dataCmp.setName(currKey.toString());
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// add the components
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add(hdrCmp, attr);
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attr.gridwidth = GridBagConstraints.REMAINDER;
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attr.weightx = 1.0;
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add(dataCmp, attr);
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// add data component to Hashmap of fields
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fields.put(currKey, dataCmp);
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}
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}
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// add 'this' panel as PvChangeListener to Process variable
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data.addPvChangeListener(this, PvChangeEvent.PV_ADDED | PvChangeEvent.PV_MODIFIED);
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}
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validate();
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}
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}
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/** Implementation of Customizer interface */
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public void setObject(Object bean)
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{
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setEditable(true);
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setProcessVar((ProcessVar) bean);
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}
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/** return the process var which is assigned to this editor panel */
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public ProcessVar getProcessVar()
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{
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return (dataSource);
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}
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/** return if the process this editor panel is editable */
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public boolean getEditable()
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{
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return (editable);
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}
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/** set this editor panel to be non-/editable */
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private void setEditable(boolean newEditable)
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{
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editable = newEditable;
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}
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/**
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* action handler for edit fields within panel
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* this handler also temporarily changes the color of the edit field to
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* visibly indicate the update action.
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*/
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public void actionPerformed(ActionEvent e)
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{
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// find out which field sends the event
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JTextField edit = (JTextField) e.getSource();
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// update the corresponding process var
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dataSource.put(edit.getName(), edit.getText(), PvChangeEvent.PV_MANUAL_MOD);
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// indicate change by changing field's background color
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edit.setBackground(changedColor);
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Toolkit.getDefaultToolkit().beep();
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}
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protected void finalize() throws Throwable
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{
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dataSource.removePvChangeListener(this);
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fields.clear();
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removeAll();
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super.finalize();
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}
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/**
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* handler for process variable changes
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* update dialog element from process variable
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*/
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public void pvChanged(PvChangeEvent event)
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{
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// only update panel if it is displayable
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if (isDisplayable())
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{
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Component edit = fields.get(event.getKey());
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Object value = event.getValue();
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// if we have found the corresponding editor field ...
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if (edit != null)
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{
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// set the value and background for it
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edit.setBackground(event.getType() == PvChangeEvent.PV_MANUAL_MOD ? changedColor : unchangedColor);
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if (edit instanceof JTextComponent)
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{
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((JTextComponent) edit).setText(value != null ? value.toString() : "");
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} else if (edit instanceof JLabel)
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{
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((JLabel) edit).setText(value != null ? value.toString() : "");
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} else if (edit instanceof PvDetailPanel)
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{
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((PvDetailPanel) edit).setProcessVar((ProcessVar) value);
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}
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}
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}
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}
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}
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