110 lines
2.8 KiB
Java
110 lines
2.8 KiB
Java
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package net.filebot.ui.rename;
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import java.awt.BorderLayout;
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import java.awt.Color;
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import java.awt.Insets;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import javax.swing.JList;
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import javax.swing.JTextField;
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import javax.swing.border.EmptyBorder;
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import javax.swing.event.DocumentEvent;
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import javax.swing.event.DocumentListener;
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import javax.swing.text.BadLocationException;
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import javax.swing.text.Highlighter;
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import javax.swing.text.JTextComponent;
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import net.filebot.util.ui.AbstractFancyListCellRenderer;
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import net.filebot.util.ui.SwingUI;
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class HighlightListCellRenderer extends AbstractFancyListCellRenderer {
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protected final JTextComponent textComponent = new JTextField();
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protected final Pattern pattern;
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protected final Highlighter.HighlightPainter highlightPainter;
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public HighlightListCellRenderer(Pattern pattern, Highlighter.HighlightPainter highlightPainter, int padding) {
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super(new Insets(0, 0, 0, 0));
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this.pattern = pattern;
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this.highlightPainter = highlightPainter;
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// pad the cell from inside the text component,
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// so the HighlightPainter may paint in this space as well
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textComponent.setBorder(new EmptyBorder(padding, padding, padding, padding));
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// make text component transparent, should work for all LAFs (setOpaque(false) may not, e.g. Nimbus)
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textComponent.setBackground(SwingUI.TRANSLUCENT);
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this.add(textComponent, BorderLayout.WEST);
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textComponent.getDocument().addDocumentListener(new HighlightUpdateListener());
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}
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@Override
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protected void configureListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
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super.configureListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
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textComponent.setText(value.toString());
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}
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protected void updateHighlighter() {
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textComponent.getHighlighter().removeAllHighlights();
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Matcher matcher = pattern.matcher(textComponent.getText());
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while (matcher.find()) {
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try {
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textComponent.getHighlighter().addHighlight(matcher.start(0), matcher.end(0), highlightPainter);
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} catch (BadLocationException e) {
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//should not happen
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Logger.getLogger(getClass().getName()).log(Level.SEVERE, e.toString(), e);
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}
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}
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}
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@Override
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public void setForeground(Color fg) {
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super.setForeground(fg);
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// textComponent is null while in super constructor
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if (textComponent != null) {
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textComponent.setForeground(fg);
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}
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}
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private class HighlightUpdateListener implements DocumentListener {
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@Override
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public void changedUpdate(DocumentEvent e) {
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updateHighlighter();
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}
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@Override
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public void insertUpdate(DocumentEvent e) {
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updateHighlighter();
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}
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@Override
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public void removeUpdate(DocumentEvent e) {
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updateHighlighter();
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}
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}
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}
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