taverna-contextual-views-impl/src/main/java/org/apache/taverna/workbench/ui/views/contextualviews/merge/MergeConfigurationView.java - incubator-taverna-workbench - Git at Google

 /*
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.
  * The ASF licenses this file to You under the Apache License, Version 2.0
  * (the "License"); you may not use this file except in compliance with
  * the License.  You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 package org.apache.taverna.workbench.ui.views.contextualviews.merge;

 import static java.awt.BorderLayout.EAST;
 import static java.awt.BorderLayout.NORTH;
 import static java.awt.BorderLayout.SOUTH;
 import static java.lang.Math.max;
 import static javax.swing.BoxLayout.Y_AXIS;
 import static javax.swing.ListSelectionModel.SINGLE_SELECTION;
 import static javax.swing.ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS;
 import static javax.swing.ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS;
 import static javax.swing.SwingConstants.CENTER;
 import static javax.swing.SwingConstants.LEFT;
 import static javax.swing.SwingConstants.RIGHT;
 import static org.apache.taverna.workbench.icons.WorkbenchIcons.downArrowIcon;
 import static org.apache.taverna.workbench.icons.WorkbenchIcons.upArrowIcon;

 import java.awt.BorderLayout;
 import java.awt.Dimension;
 import java.awt.FlowLayout;
 import java.awt.FontMetrics;
 import java.awt.Frame;
 import java.awt.event.ActionEvent;
 import java.util.ArrayList;
 import java.util.List;

 import javax.swing.AbstractAction;
 import javax.swing.BoxLayout;
 import javax.swing.DefaultListModel;
 import javax.swing.JButton;
 import javax.swing.JLabel;
 import javax.swing.JList;
 import javax.swing.JPanel;
 import javax.swing.JScrollPane;
 import javax.swing.border.CompoundBorder;
 import javax.swing.border.EmptyBorder;
 import javax.swing.border.EtchedBorder;
 import javax.swing.event.ListSelectionEvent;
 import javax.swing.event.ListSelectionListener;

 import org.apache.taverna.workbench.edits.EditManager;
 import org.apache.taverna.workbench.helper.HelpEnabledDialog;
 import org.apache.taverna.workbench.selection.SelectionManager;
 import org.apache.taverna.scufl2.api.core.DataLink;

 @SuppressWarnings("serial")
 public class MergeConfigurationView extends HelpEnabledDialog {
 	private static final String TITLE = "<html><body><b>Order of incoming links</b></body></html>";

 	private List<DataLink> dataLinks;
 	private List<DataLink> reorderedDataLinks;
 	/** Ordered list of labels for dataLinks to be displayed to the user */
 	private DefaultListModel<String> labelListModel;
 	/** JList that displays the labelListModel */
 	JList<String> list;
 	/** Button to push the dataLink up the list */
 	private JButton upButton;
 	/** Button to push the dataLink down the list */
 	private JButton downButton;
 	private final EditManager editManager;
 	private final SelectionManager selectionManager;

 	public MergeConfigurationView(List<DataLink> dataLinks, EditManager editManager,
 			SelectionManager selectionManager) {
 		super((Frame)null, "Merge Configuration", true);

 		this.dataLinks = new ArrayList<>(dataLinks);
 		reorderedDataLinks = new ArrayList<>(dataLinks);
 		this.editManager = editManager;
 		this.selectionManager = selectionManager;
 		labelListModel = new DefaultListModel<>();
 		for (DataLink dataLink : dataLinks)
 			labelListModel.addElement(dataLink.toString());

 		initComponents();
 	}

 	private void initComponents() {
         getContentPane().setLayout(new BorderLayout());

 		JPanel listPanel = new JPanel();
 		listPanel.setLayout(new BorderLayout());
 		listPanel.setBorder(new CompoundBorder(new EmptyBorder(10, 10, 10, 10),
 				new EtchedBorder()));

 		JLabel title = new JLabel(TITLE);
 		title.setBorder(new EmptyBorder(5, 5, 5, 5));
 		listPanel.add(title, NORTH);

 		list = new JList<>(labelListModel);
 		list.setSelectionMode(SINGLE_SELECTION);
 		list.setVisibleRowCount(-1);
 		list.addListSelectionListener(new ListSelectionListener() {
 			/**
 			 * Enable and disable up and down buttons based on which item in the
 			 * list is selected
 			 */
 			@Override
 			public void valueChanged(ListSelectionEvent e) {
 				int index = list.getSelectedIndex();
 				if ((index == -1) || (index == 0 && labelListModel.size() == 0)) {
 					// nothing selected or only one item in the list
 					upButton.setEnabled(false);
 					downButton.setEnabled(false);
 				} else {
 					upButton.setEnabled(index > 0);
 					downButton.setEnabled(index < labelListModel.size() - 1);
 				}
 			}
 		});

 		final JScrollPane listScroller = new JScrollPane(list);
 		listScroller.setBorder(new EmptyBorder(5, 5, 5, 5));
 		listScroller.setBackground(listPanel.getBackground());
 		listScroller.setHorizontalScrollBarPolicy(HORIZONTAL_SCROLLBAR_ALWAYS);
 		listScroller.setVerticalScrollBarPolicy(VERTICAL_SCROLLBAR_ALWAYS);
 		// Set the size of scroll pane to make all list items visible
 		FontMetrics fm = listScroller.getFontMetrics(this.getFont());
 		int listScrollerHeight = fm.getHeight() * labelListModel.size() + 75; //+75 just in case
 		listScroller.setPreferredSize(new Dimension(listScroller
 				.getPreferredSize().width, max(listScrollerHeight,
 				listScroller.getPreferredSize().height)));
 		listPanel.add(listScroller, BorderLayout.CENTER);

 		JPanel upDownButtonPanel = new JPanel();
 		upDownButtonPanel.setLayout(new BoxLayout(upDownButtonPanel, Y_AXIS));
 		upDownButtonPanel.setBorder(new EmptyBorder(5, 5, 5, 5));

 		upButton = new JButton(new AbstractAction() {
 			@Override
 			public void actionPerformed(ActionEvent e) {
 				int index = list.getSelectedIndex();
 				if (index != -1) {
 					// Swap the labels
 					String label = (String) labelListModel.elementAt(index);
 					labelListModel.set(index, labelListModel.get(index - 1));
 					labelListModel.set(index - 1, label);
 					// Swap the dataLinks
 					DataLink dataLink = reorderedDataLinks.get(index);
 					reorderedDataLinks.set(index,
 							reorderedDataLinks.get(index - 1));
 					reorderedDataLinks.set(index - 1, dataLink);
 					// Make the pushed item selected
 					list.setSelectedIndex(index - 1);
 					// Refresh the list
 					listScroller.repaint();
 					listScroller.revalidate();
 				}
 			}
 		});
 		upButton.setIcon(upArrowIcon);
 		upButton.setText("Up");
 	    // Place text to the right of icon, vertically centered
 		upButton.setVerticalTextPosition(CENTER);
 		upButton.setHorizontalTextPosition(RIGHT);
 		// Set the horizontal alignment of the icon and text
 		upButton.setHorizontalAlignment(LEFT);
 		upButton.setEnabled(false);
 		upDownButtonPanel.add(upButton);

 		downButton = new JButton(new AbstractAction() {
 			@Override
 			public void actionPerformed(ActionEvent e) {
 				int index = list.getSelectedIndex();
 				if (index != -1) {
 					// Swap the labels
 					String label = (String) labelListModel.elementAt(index);
 					labelListModel.set(index, labelListModel.get(index + 1));
 					labelListModel.set(index + 1, label);
 					// Swap the dataLinks
 					DataLink dataLink = reorderedDataLinks.get(index);
 					reorderedDataLinks.set(index,
 							reorderedDataLinks.get(index + 1));
 					reorderedDataLinks.set(index + 1, dataLink);
 					// Make the pushed item selected
 					list.setSelectedIndex(index + 1);
 					// Refresh the list
 					list.repaint();
 					listScroller.revalidate();
 				}
 			}
 		});
 		downButton.setIcon(downArrowIcon);
 		downButton.setText("Down");
 	    // Place text to the right of icon, vertically centered
 		downButton.setVerticalTextPosition(CENTER);
 		downButton.setHorizontalTextPosition(RIGHT);
 		// Set the horizontal alignment of the icon and text
 		downButton.setHorizontalAlignment(LEFT);
 		downButton.setEnabled(false);
 		// set the up button to be of the same size as down button
 		upButton.setPreferredSize(downButton.getPreferredSize());
 		upButton.setMaximumSize(downButton.getPreferredSize());
 		upButton.setMinimumSize(downButton.getPreferredSize());
 		upDownButtonPanel.add(downButton);

 		listPanel.add(upDownButtonPanel, EAST);

 		JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.RIGHT));

 		JButton jbOK = new JButton("OK");
 		jbOK.addActionListener(new AbstractAction() {
 			@Override
 			public void actionPerformed(ActionEvent e) {
 				new MergeConfigurationAction(dataLinks, reorderedDataLinks,
 						editManager, selectionManager).actionPerformed(e);
 				closeDialog();
 			}
 		});

 		JButton jbCancel = new JButton("Cancel");
 		jbCancel.addActionListener(new AbstractAction() {
 			@Override
 			public void actionPerformed(ActionEvent e) {
 				closeDialog();
 			}
 		});

         buttonPanel.add(jbOK);
         buttonPanel.add(jbCancel);

         getContentPane().add(listPanel, BorderLayout.CENTER);
         getContentPane().add(buttonPanel, SOUTH);
         pack();
 	}

 	/**
 	 * Close the dialog.
 	 */
 	private void closeDialog() {
 		setVisible(false);
 		dispose();
 	}
 }
	/*
	* Licensed to the Apache Software Foundation (ASF) under one or more
	* contributor license agreements. See the NOTICE file distributed with
	* this work for additional information regarding copyright ownership.
	* The ASF licenses this file to You under the Apache License, Version 2.0
	* (the "License"); you may not use this file except in compliance with
	* the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
	package org.apache.taverna.workbench.ui.views.contextualviews.merge;

	import static java.awt.BorderLayout.EAST;
	import static java.awt.BorderLayout.NORTH;
	import static java.awt.BorderLayout.SOUTH;
	import static java.lang.Math.max;
	import static javax.swing.BoxLayout.Y_AXIS;
	import static javax.swing.ListSelectionModel.SINGLE_SELECTION;
	import static javax.swing.ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS;
	import static javax.swing.ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS;
	import static javax.swing.SwingConstants.CENTER;
	import static javax.swing.SwingConstants.LEFT;
	import static javax.swing.SwingConstants.RIGHT;
	import static org.apache.taverna.workbench.icons.WorkbenchIcons.downArrowIcon;
	import static org.apache.taverna.workbench.icons.WorkbenchIcons.upArrowIcon;

	import java.awt.BorderLayout;
	import java.awt.Dimension;
	import java.awt.FlowLayout;
	import java.awt.FontMetrics;
	import java.awt.Frame;
	import java.awt.event.ActionEvent;
	import java.util.ArrayList;
	import java.util.List;

	import javax.swing.AbstractAction;
	import javax.swing.BoxLayout;
	import javax.swing.DefaultListModel;
	import javax.swing.JButton;
	import javax.swing.JLabel;
	import javax.swing.JList;
	import javax.swing.JPanel;
	import javax.swing.JScrollPane;
	import javax.swing.border.CompoundBorder;
	import javax.swing.border.EmptyBorder;
	import javax.swing.border.EtchedBorder;
	import javax.swing.event.ListSelectionEvent;
	import javax.swing.event.ListSelectionListener;

	import org.apache.taverna.workbench.edits.EditManager;
	import org.apache.taverna.workbench.helper.HelpEnabledDialog;
	import org.apache.taverna.workbench.selection.SelectionManager;
	import org.apache.taverna.scufl2.api.core.DataLink;

	@SuppressWarnings("serial")
	public class MergeConfigurationView extends HelpEnabledDialog {
	private static final String TITLE = "<html><body><b>Order of incoming links</b></body></html>";

	private List<DataLink> dataLinks;
	private List<DataLink> reorderedDataLinks;
	/** Ordered list of labels for dataLinks to be displayed to the user */
	private DefaultListModel<String> labelListModel;
	/** JList that displays the labelListModel */
	JList<String> list;
	/** Button to push the dataLink up the list */
	private JButton upButton;
	/** Button to push the dataLink down the list */
	private JButton downButton;
	private final EditManager editManager;
	private final SelectionManager selectionManager;

	public MergeConfigurationView(List<DataLink> dataLinks, EditManager editManager,
	SelectionManager selectionManager) {
	super((Frame)null, "Merge Configuration", true);

	this.dataLinks = new ArrayList<>(dataLinks);
	reorderedDataLinks = new ArrayList<>(dataLinks);
	this.editManager = editManager;
	this.selectionManager = selectionManager;
	labelListModel = new DefaultListModel<>();
	for (DataLink dataLink : dataLinks)
	labelListModel.addElement(dataLink.toString());

	initComponents();
	}

	private void initComponents() {
	getContentPane().setLayout(new BorderLayout());

	JPanel listPanel = new JPanel();
	listPanel.setLayout(new BorderLayout());
	listPanel.setBorder(new CompoundBorder(new EmptyBorder(10, 10, 10, 10),
	new EtchedBorder()));

	JLabel title = new JLabel(TITLE);
	title.setBorder(new EmptyBorder(5, 5, 5, 5));
	listPanel.add(title, NORTH);

	list = new JList<>(labelListModel);
	list.setSelectionMode(SINGLE_SELECTION);
	list.setVisibleRowCount(-1);
	list.addListSelectionListener(new ListSelectionListener() {
	/**
	* Enable and disable up and down buttons based on which item in the
	* list is selected
	*/
	@Override
	public void valueChanged(ListSelectionEvent e) {
	int index = list.getSelectedIndex();
	if ((index == -1) \|\| (index == 0 && labelListModel.size() == 0)) {
	// nothing selected or only one item in the list
	upButton.setEnabled(false);
	downButton.setEnabled(false);
	} else {
	upButton.setEnabled(index > 0);
	downButton.setEnabled(index < labelListModel.size() - 1);
	}
	}
	});

	final JScrollPane listScroller = new JScrollPane(list);
	listScroller.setBorder(new EmptyBorder(5, 5, 5, 5));
	listScroller.setBackground(listPanel.getBackground());
	listScroller.setHorizontalScrollBarPolicy(HORIZONTAL_SCROLLBAR_ALWAYS);
	listScroller.setVerticalScrollBarPolicy(VERTICAL_SCROLLBAR_ALWAYS);
	// Set the size of scroll pane to make all list items visible
	FontMetrics fm = listScroller.getFontMetrics(this.getFont());
	int listScrollerHeight = fm.getHeight() * labelListModel.size() + 75; //+75 just in case
	listScroller.setPreferredSize(new Dimension(listScroller
	.getPreferredSize().width, max(listScrollerHeight,
	listScroller.getPreferredSize().height)));
	listPanel.add(listScroller, BorderLayout.CENTER);

	JPanel upDownButtonPanel = new JPanel();
	upDownButtonPanel.setLayout(new BoxLayout(upDownButtonPanel, Y_AXIS));
	upDownButtonPanel.setBorder(new EmptyBorder(5, 5, 5, 5));

	upButton = new JButton(new AbstractAction() {
	@Override
	public void actionPerformed(ActionEvent e) {
	int index = list.getSelectedIndex();
	if (index != -1) {
	// Swap the labels
	String label = (String) labelListModel.elementAt(index);
	labelListModel.set(index, labelListModel.get(index - 1));
	labelListModel.set(index - 1, label);
	// Swap the dataLinks
	DataLink dataLink = reorderedDataLinks.get(index);
	reorderedDataLinks.set(index,
	reorderedDataLinks.get(index - 1));
	reorderedDataLinks.set(index - 1, dataLink);
	// Make the pushed item selected
	list.setSelectedIndex(index - 1);
	// Refresh the list
	listScroller.repaint();
	listScroller.revalidate();
	}
	}
	});
	upButton.setIcon(upArrowIcon);
	upButton.setText("Up");
	// Place text to the right of icon, vertically centered
	upButton.setVerticalTextPosition(CENTER);
	upButton.setHorizontalTextPosition(RIGHT);
	// Set the horizontal alignment of the icon and text
	upButton.setHorizontalAlignment(LEFT);
	upButton.setEnabled(false);
	upDownButtonPanel.add(upButton);

	downButton = new JButton(new AbstractAction() {
	@Override
	public void actionPerformed(ActionEvent e) {
	int index = list.getSelectedIndex();
	if (index != -1) {
	// Swap the labels
	String label = (String) labelListModel.elementAt(index);
	labelListModel.set(index, labelListModel.get(index + 1));
	labelListModel.set(index + 1, label);
	// Swap the dataLinks
	DataLink dataLink = reorderedDataLinks.get(index);
	reorderedDataLinks.set(index,
	reorderedDataLinks.get(index + 1));
	reorderedDataLinks.set(index + 1, dataLink);
	// Make the pushed item selected
	list.setSelectedIndex(index + 1);
	// Refresh the list
	list.repaint();
	listScroller.revalidate();
	}
	}
	});
	downButton.setIcon(downArrowIcon);
	downButton.setText("Down");
	// Place text to the right of icon, vertically centered
	downButton.setVerticalTextPosition(CENTER);
	downButton.setHorizontalTextPosition(RIGHT);
	// Set the horizontal alignment of the icon and text
	downButton.setHorizontalAlignment(LEFT);
	downButton.setEnabled(false);
	// set the up button to be of the same size as down button
	upButton.setPreferredSize(downButton.getPreferredSize());
	upButton.setMaximumSize(downButton.getPreferredSize());
	upButton.setMinimumSize(downButton.getPreferredSize());
	upDownButtonPanel.add(downButton);

	listPanel.add(upDownButtonPanel, EAST);

	JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.RIGHT));

	JButton jbOK = new JButton("OK");
	jbOK.addActionListener(new AbstractAction() {
	@Override
	public void actionPerformed(ActionEvent e) {
	new MergeConfigurationAction(dataLinks, reorderedDataLinks,
	editManager, selectionManager).actionPerformed(e);
	closeDialog();
	}
	});

	JButton jbCancel = new JButton("Cancel");
	jbCancel.addActionListener(new AbstractAction() {
	@Override
	public void actionPerformed(ActionEvent e) {
	closeDialog();
	}
	});

	buttonPanel.add(jbOK);
	buttonPanel.add(jbCancel);

	getContentPane().add(listPanel, BorderLayout.CENTER);
	getContentPane().add(buttonPanel, SOUTH);
	pack();
	}

	/**
	* Close the dialog.
	*/
	private void closeDialog() {
	setVisible(false);
	dispose();
	}
	}