| /* |
| * 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.lucene.luke.app.desktop.components.dialog.search; |
| |
| import javax.swing.BorderFactory; |
| import javax.swing.JButton; |
| import javax.swing.JDialog; |
| import javax.swing.JLabel; |
| import javax.swing.JPanel; |
| import javax.swing.JScrollPane; |
| import javax.swing.JTree; |
| import javax.swing.tree.DefaultMutableTreeNode; |
| import javax.swing.tree.DefaultTreeCellRenderer; |
| import java.awt.BorderLayout; |
| import java.awt.Dialog; |
| import java.awt.Dimension; |
| import java.awt.FlowLayout; |
| import java.awt.GridLayout; |
| import java.awt.Insets; |
| import java.awt.Toolkit; |
| import java.awt.Window; |
| import java.awt.datatransfer.Clipboard; |
| import java.awt.datatransfer.StringSelection; |
| import java.io.IOException; |
| import java.util.Objects; |
| import java.util.stream.IntStream; |
| |
| import org.apache.lucene.luke.app.desktop.Preferences; |
| import org.apache.lucene.luke.app.desktop.PreferencesFactory; |
| import org.apache.lucene.luke.app.desktop.util.DialogOpener; |
| import org.apache.lucene.luke.app.desktop.util.FontUtils; |
| import org.apache.lucene.luke.app.desktop.util.MessageUtils; |
| import org.apache.lucene.search.Explanation; |
| |
| /** Factory of explain dialog */ |
| public final class ExplainDialogFactory implements DialogOpener.DialogFactory { |
| |
| private static ExplainDialogFactory instance; |
| |
| private final Preferences prefs; |
| |
| private JDialog dialog; |
| |
| private int docid = -1; |
| |
| private Explanation explanation; |
| |
| public synchronized static ExplainDialogFactory getInstance() throws IOException { |
| if (instance == null) { |
| instance = new ExplainDialogFactory(); |
| } |
| return instance; |
| } |
| |
| private ExplainDialogFactory() throws IOException { |
| this.prefs = PreferencesFactory.getInstance(); |
| } |
| |
| public void setDocid(int docid) { |
| this.docid = docid; |
| } |
| |
| public void setExplanation(Explanation explanation) { |
| this.explanation = explanation; |
| } |
| |
| @Override |
| public JDialog create(Window owner, String title, int width, int height) { |
| if (docid < 0 || Objects.isNull(explanation)) { |
| throw new IllegalStateException("docid and/or explanation is not set."); |
| } |
| |
| dialog = new JDialog(owner, title, Dialog.ModalityType.APPLICATION_MODAL); |
| dialog.add(content()); |
| dialog.setSize(new Dimension(width, height)); |
| dialog.setLocationRelativeTo(owner); |
| dialog.getContentPane().setBackground(prefs.getColorTheme().getBackgroundColor()); |
| return dialog; |
| } |
| |
| private JPanel content() { |
| JPanel panel = new JPanel(new BorderLayout()); |
| panel.setOpaque(false); |
| panel.setBorder(BorderFactory.createEmptyBorder(15, 15, 15, 15)); |
| |
| JPanel header = new JPanel(new FlowLayout(FlowLayout.LEADING, 5, 10)); |
| header.setOpaque(false); |
| header.add(new JLabel(MessageUtils.getLocalizedMessage("search.explanation.description"))); |
| header.add(new JLabel(String.valueOf(docid))); |
| panel.add(header, BorderLayout.PAGE_START); |
| |
| JPanel center = new JPanel(new GridLayout(1, 1)); |
| center.setOpaque(false); |
| center.add(new JScrollPane(createExplanationTree())); |
| panel.add(center, BorderLayout.CENTER); |
| |
| JPanel footer = new JPanel(new FlowLayout(FlowLayout.TRAILING, 5, 5)); |
| footer.setOpaque(false); |
| |
| JButton copyBtn = new JButton(FontUtils.elegantIconHtml("", MessageUtils.getLocalizedMessage("button.copy"))); |
| copyBtn.setMargin(new Insets(3, 3, 3, 3)); |
| copyBtn.addActionListener(e -> { |
| Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard(); |
| StringSelection selection = new StringSelection(explanationToString()); |
| clipboard.setContents(selection, null); |
| }); |
| footer.add(copyBtn); |
| |
| JButton closeBtn = new JButton(MessageUtils.getLocalizedMessage("button.close")); |
| closeBtn.setMargin(new Insets(3, 3, 3, 3)); |
| closeBtn.addActionListener(e -> dialog.dispose()); |
| footer.add(closeBtn); |
| panel.add(footer, BorderLayout.PAGE_END); |
| |
| return panel; |
| } |
| |
| private JTree createExplanationTree() { |
| DefaultMutableTreeNode top = createNode(explanation); |
| traverse(top, explanation.getDetails()); |
| |
| JTree tree = new JTree(top); |
| tree.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10)); |
| DefaultTreeCellRenderer renderer = new DefaultTreeCellRenderer(); |
| renderer.setOpenIcon(null); |
| renderer.setClosedIcon(null); |
| renderer.setLeafIcon(null); |
| tree.setCellRenderer(renderer); |
| // expand all nodes |
| for (int row = 0; row < tree.getRowCount(); row++) { |
| tree.expandRow(row); |
| } |
| return tree; |
| } |
| |
| private void traverse(DefaultMutableTreeNode parent, Explanation[] explanations) { |
| for (Explanation explanation : explanations) { |
| DefaultMutableTreeNode node = createNode(explanation); |
| parent.add(node); |
| traverse(node, explanation.getDetails()); |
| } |
| } |
| |
| private DefaultMutableTreeNode createNode(Explanation explanation) { |
| return new DefaultMutableTreeNode(format(explanation)); |
| } |
| |
| private String explanationToString() { |
| StringBuilder sb = new StringBuilder(format(explanation)); |
| sb.append(System.lineSeparator()); |
| traverseToCopy(sb, 1, explanation.getDetails()); |
| return sb.toString(); |
| } |
| |
| private void traverseToCopy(StringBuilder sb, int depth, Explanation[] explanations) { |
| for (Explanation explanation : explanations) { |
| IntStream.range(0, depth).forEach(i -> sb.append(" ")); |
| sb.append(format(explanation)); |
| sb.append("\n"); |
| traverseToCopy(sb, depth + 1, explanation.getDetails()); |
| } |
| } |
| |
| private String format(Explanation explanation) { |
| return explanation.getValue() + " " + explanation.getDescription(); |
| } |
| } |