evicebeans.7.131.2.source-code.DeviceDispatch Maven / Gradle / Ivy

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MDSplus device beans for jdevice dialogs
There is a newer version: 7.139.60
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.*;
import javax.swing.border.LineBorder;

public class DeviceDispatch extends DeviceComponent
{
	class DispatchComboEditor implements ComboBoxEditor
	{
		JLabel label = new JLabel("  Dispatch");
		int idx;
		String name;

		@Override
		public void addActionListener(ActionListener l)
		{}

		@Override
		public Component getEditorComponent()
		{ return label; }

		@Override
		public Object getItem()
		{ return label; }

		@Override
		public void removeActionListener(ActionListener l)
		{}

		@Override
		public void selectAll()
		{}

		@Override
		public void setItem(Object obj)
		{}
	}

	private static final long serialVersionUID = 1L;
	private DeviceDispatchField dispatch_fields[], active_field;
	private String actions[];
	private JDialog dialog = null;
	private final JComboBox menu;
	protected boolean initializing = false;

	public DeviceDispatch()
	{
		menu = new JComboBox<>();
		menu.setEditor(new DispatchComboEditor());
		menu.setEditable(true);
		menu.setBorder(new LineBorder(Color.black, 1));
		add(menu);
	}

	protected void activateForm(DeviceDispatchField field, String name)
	{
		if (dialog == null)
		{
			dialog = new JDialog(master);
			dialog.getContentPane().setLayout(new BorderLayout());
			dialog.getContentPane().add(field, "Center");
			final JPanel jp = new JPanel();
			final JButton button = new JButton("Done");
			button.addActionListener(new ActionListener()
			{
				@Override
				public void actionPerformed(ActionEvent e)
				{
					dialog.dispose();
				}
			});
			jp.add(button);
			dialog.getContentPane().add(jp, "South");
			active_field = field;
		}
		else
		{
			dialog.getContentPane().remove(active_field);
			dialog.getContentPane().add(field, "Center");
			active_field = field;
		}
		dialog.setTitle("Dispatch info for " + name);
		dialog.pack();
		dialog.repaint();
		dialog.setLocation(master.getLocationOnScreen());
		dialog.setVisible(true);
	}

	@Override
	public void apply() throws Exception
	{
		if (dispatch_fields == null)
			return;
		for (final DeviceDispatchField dispatch_field : dispatch_fields)
			dispatch_field.apply();
	}

	@Override
	public void apply(int currBaseNid)
	{}

	@Override
	protected void displayData(String data, boolean is_on)
	{}

	@Override
	protected String getData()
	{ return null; }

	@Override
	protected boolean getState()
	{ return true; }

	@Override
	protected void initializeData(String data, boolean is_on)
	// data and is_on arguments are meaningless in this context
	// The class will search actions stored in the device
	// and create and manage their dispatch configurations
	{
		initializing = true;
		if (subtree == null)
			return;
		int num_components;
		try
		{
			num_components = subtree.getNumConglomerateNids(nidData);
		}
		catch (final Exception exc)
		{
			num_components = 0;
		}
		final int endNid = baseNidData + num_components;
		final int action_nids[] = new int[num_components];
		int num_actions = 0;
		for (int nid = baseNidData; nid < endNid; nid++)
		{// find all actions
			try
			{
				if (subtree.getUsage(nid).equals("ACTION"))
					action_nids[num_actions++] = nid;
			}
			catch (final Exception e)
			{}
		}
		actions = new String[num_actions];
		dispatch_fields = new DeviceDispatchField[num_actions];
		for (int i = 0; i < num_actions; i++)
		{
			final int nid = action_nids[i];
			try
			{
				actions[i] = subtree.getDataExpr(nid);
			}
			catch (final Exception e)
			{
				System.out.println("Cannot read device actions: " + e);
				return;
			}
			try
			{
				final String name = subtree.getNodeName(nid);
				menu.addItem(name);
			}
			catch (final Exception e)
			{}
			dispatch_fields[i] = new DeviceDispatchField();
			dispatch_fields[i].setSubtree(subtree);
			dispatch_fields[i].setOffsetNid(nid - baseNidData);
			dispatch_fields[i].configure(nidData);
		}
		menu.addActionListener(new ActionListener()
		{
			@Override
			public void actionPerformed(ActionEvent e)
			{
				final int idx = menu.getSelectedIndex();
				if (idx < 0 || idx >= dispatch_fields.length)
					return;
				activateForm(dispatch_fields[menu.getSelectedIndex()], (String) menu.getSelectedItem());
			}
		});
		initializing = false;
	}

	@Override
	public void reset()
	{
		if (dispatch_fields == null)
			return;
		for (final DeviceDispatchField dispatch_field : dispatch_fields)
			dispatch_field.reset();
	}
}