gvsig-scripting / org.gvsig.scripting / trunk / org.gvsig.scripting / org.gvsig.scripting.swing / org.gvsig.scripting.swing.impl / src / main / java / org / gvsig / scripting / swing / impl / syntaxhighlight / JRSyntaxTextArea.java @ 1440
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package org.gvsig.scripting.swing.impl.syntaxhighlight; |
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import java.awt.BorderLayout; |
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import java.awt.Color; |
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import java.awt.Component; |
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import java.awt.Container; |
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import java.awt.Cursor; |
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import java.awt.Dimension; |
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import java.awt.Font; |
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import java.awt.Point; |
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import java.awt.Rectangle; |
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import java.awt.event.ActionEvent; |
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import java.awt.event.ActionListener; |
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import java.awt.event.InputEvent; |
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import java.awt.event.KeyEvent; |
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import java.awt.event.KeyListener; |
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import java.awt.event.MouseAdapter; |
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import java.awt.event.MouseEvent; |
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import java.net.URL; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.Comparator; |
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import java.util.HashMap; |
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import java.util.HashSet; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.Set; |
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import java.util.TreeSet; |
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import javax.swing.DefaultListCellRenderer; |
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import javax.swing.Icon; |
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import javax.swing.ImageIcon; |
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import javax.swing.JCheckBox; |
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import javax.swing.JComponent; |
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import javax.swing.JLabel; |
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import javax.swing.JList; |
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import javax.swing.JOptionPane; |
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import javax.swing.JPanel; |
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|
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import javax.swing.JScrollPane; |
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import javax.swing.JViewport; |
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import javax.swing.KeyStroke; |
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import javax.swing.SwingUtilities; |
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import javax.swing.UIDefaults; |
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import javax.swing.UIManager; |
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import javax.swing.event.CaretEvent; |
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import javax.swing.event.CaretListener; |
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import javax.swing.text.BadLocationException; |
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import javax.swing.text.Element; |
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import javax.swing.text.JTextComponent; |
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import org.apache.commons.lang3.StringUtils; |
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import org.fife.rsta.ui.CollapsibleSectionPanel; |
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import org.fife.rsta.ui.search.FindToolBar; |
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import org.fife.rsta.ui.search.ReplaceToolBar; |
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import org.fife.rsta.ui.search.SearchEvent; |
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import org.fife.rsta.ui.search.SearchListener; |
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import org.fife.ui.autocomplete.AutoCompletion; |
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import org.fife.ui.autocomplete.BasicCompletion; |
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import org.fife.ui.autocomplete.Completion; |
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import org.fife.ui.autocomplete.CompletionProvider; |
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import org.fife.ui.autocomplete.DefaultCompletionProvider; |
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|
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import org.fife.ui.rsyntaxtextarea.RSyntaxTextArea; |
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import org.fife.ui.rsyntaxtextarea.SyntaxConstants; |
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import org.fife.ui.rsyntaxtextarea.TokenMakerFactory; |
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import org.fife.ui.rtextarea.GutterIconInfo; |
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import org.fife.ui.rtextarea.RTextScrollPane; |
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import org.fife.ui.rtextarea.SearchContext; |
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import org.fife.ui.rtextarea.SearchEngine; |
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import org.fife.ui.rtextarea.SearchResult; |
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import org.gvsig.scripting.swing.api.ScriptingSwingLocator; |
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import org.gvsig.scripting.swing.api.ScriptingUIManager; |
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import org.gvsig.scripting.swing.api.SyntaxtHighlightTextComponent; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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|
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public class JRSyntaxTextArea implements SyntaxtHighlightTextComponent, SearchListener { |
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|
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private static final Logger logger = LoggerFactory.getLogger(JRSyntaxTextArea.class); |
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public static class MyCheckBox extends JCheckBox { |
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|
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private static final String uiClassID = "ToggleButtonUI"; |
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|
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@Override
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public String getUIClassID() { |
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return uiClassID;
|
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} |
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|
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} |
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|
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private class MyFindToolBar extends FindToolBar { |
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|
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public MyFindToolBar(SearchListener listener) {
|
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super(listener);
|
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} |
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|
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@Override
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protected JCheckBox createCB(String key) { |
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JCheckBox cb = new MyCheckBox(); |
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cb.setToolTipText(searchMsg.getString(key)); |
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cb.addActionListener(listener); |
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cb.addMouseListener(listener); |
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cb.setIcon(getIcon("scripting-search-" + key.toLowerCase()));
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return cb;
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} |
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|
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} |
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|
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private class MyReplaceToolBar extends ReplaceToolBar { |
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public MyReplaceToolBar(SearchListener listener) {
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super(listener);
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} |
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|
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@Override
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protected JCheckBox createCB(String key) { |
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JCheckBox cb = new MyCheckBox(); |
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cb.setToolTipText(searchMsg.getString(key)); |
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cb.addActionListener(listener); |
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cb.addMouseListener(listener); |
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cb.setIcon(getIcon("scripting-search-" + key.toLowerCase()));
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return cb;
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} |
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} |
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|
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private class LineTrackerPanel extends JPanel { |
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|
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private static final long serialVersionUID = -1923556745197997373L; |
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|
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private class Line extends JLabel { |
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private static final long serialVersionUID = 8966359978957026490L; |
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private final int lineno; |
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private final String tag; |
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|
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public Line(String tag, final int lineno, int posy, Color color, String tooltip) { |
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UIDefaults uidefaults = UIManager.getLookAndFeel().getDefaults(); |
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this.setBackground((Color) uidefaults.get("EditorPane.background")); |
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this.setForeground((Color) uidefaults.get("EditorPane.foreground")); |
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this.lineno = lineno;
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this.tag = tag;
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this.setBackground(color);
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this.setBounds(0, posy, 15, 2); |
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this.setOpaque(true); |
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this.setToolTipText(tooltip);
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this.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR)); |
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this.addMouseListener(new MouseAdapter() { |
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|
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@Override
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public void mouseClicked(MouseEvent e) { |
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gotoline(lineno); |
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} |
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}); |
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// Rectangle r = this.getBounds();
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// logger.info("LineTracker: created lineno:"+lineno+", tag:"+tag+", x:"+ r.x + ", y:"+ r.y + ", w:"+ r.width+", h:"+ r.height);
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} |
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public int getLineno() { |
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return this.lineno; |
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} |
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|
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public String getTag() { |
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return this.tag; |
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} |
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} |
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public LineTrackerPanel() {
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setLayout(null);
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} |
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@Override
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public Dimension getPreferredSize() { |
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Dimension d = super.getPreferredSize(); |
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return new Dimension(15, d.height); |
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} |
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public void addLineTracker(String tag, int lineno, String tooltip, Color color) { |
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int posy = (int) (((float)lineno)*this.getSize().height / textArea.getLineCount()); |
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Line line = new Line(tag,lineno,posy,color,tooltip); |
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this.add(line);
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this.repaint();
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} |
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public void removeLineTrackers() { |
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this.removeAll();
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this.repaint();
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} |
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public void removeLineTrackers(String tag) { |
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if( StringUtils.isEmpty(tag) ) {
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return;
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} |
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List<Line> toremove = new ArrayList<>(); |
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for( int i=0; i<this.getComponentCount(); i++ ) { |
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Line line = (Line) this.getComponent(i); |
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if( tag.equalsIgnoreCase(line.getTag()) ) {
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toremove.add(line); |
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} |
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} |
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for (Line line : toremove) { |
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this.remove(line);
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} |
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this.repaint();
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} |
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} |
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private static class IconsTracker { |
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private Map<String,Set<GutterIconInfo>>iconInfos = new HashMap<>(); |
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public IconsTracker() {
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} |
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public void add(String tag, GutterIconInfo x) { |
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Set<GutterIconInfo> set = this.iconInfos.get(tag); |
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if( set == null ) { |
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set = new HashSet<>(); |
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this.iconInfos.put(tag, set);
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} |
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set.add(x); |
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} |
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public void removeAll() { |
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this.iconInfos = new HashMap<>(); |
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} |
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public void remove(String tag) { |
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this.iconInfos.remove(tag);
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} |
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public void remove(String tag, GutterIconInfo x) { |
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Set<GutterIconInfo> set = this.iconInfos.get(tag); |
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if( set == null ) { |
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return;
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} |
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set.remove(x); |
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} |
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public boolean exists(String tag) { |
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return this.iconInfos.containsKey(tag); |
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} |
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public Set<GutterIconInfo> get(String tag) { |
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Set<GutterIconInfo> set = this.iconInfos.get(tag); |
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return set;
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} |
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} |
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private final FindToolBar findToolBar; |
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private final ReplaceToolBar replaceToolBar; |
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private final CollapsibleSectionPanel csp; |
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public class DefaultUpdateCaretPositionActionEvent extends ActionEvent implements UpdateCaretPositionActionEvent { |
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/**
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*
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*/
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private static final long serialVersionUID = 8238486105726094074L; |
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int line = -1; |
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int column = -1; |
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public DefaultUpdateCaretPositionActionEvent(Object source, int id, |
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String command, int line, int column) { |
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super(source, id, command);
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this.line = line;
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this.column = column;
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} |
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public int getLine() { |
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return this.line + 1; |
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} |
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public int getColumn() { |
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return this.column; |
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} |
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public boolean hasLineAndColumn() { |
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return this.line >= 0 && this.column >= 0; |
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} |
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|
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} |
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protected ActionListener updateCaretPosition = null; |
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protected RSyntaxTextArea textArea = null; |
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private final RTextScrollPane scrollPanel; |
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private final JPanel panel; |
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private final Map<String, String> contentTypeAlias; |
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private final IconsTracker iconsTracker = new IconsTracker(); |
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private LineTrackerPanel lineTrackerPanel;
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private ScriptingUIManager scriptingUIManager;
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public JRSyntaxTextArea() {
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this.contentTypeAlias = new HashMap<>(); |
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this.contentTypeAlias.put("text/r", SyntaxConstants.SYNTAX_STYLE_C); |
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this.contentTypeAlias.put("text/ecmascript", SyntaxConstants.SYNTAX_STYLE_JAVASCRIPT); |
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this.contentTypeAlias.put("text/cosa", SyntaxConstants.SYNTAX_STYLE_SQL); |
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this.textArea = new RSyntaxTextArea(20, 60); |
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UIDefaults uidefaults = UIManager.getLookAndFeel().getDefaults(); |
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// https://alvinalexander.com/java/java-uimanager-color-keys-list/
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this.textArea.setBackground((Color) uidefaults.get("EditorPane.background")); |
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this.textArea.setForeground((Color) uidefaults.get("EditorPane.foreground")); |
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this.textArea.setFont((Font) uidefaults.get("EditorPane.font")); |
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this.init();
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lineTrackerPanel = new LineTrackerPanel();
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this.scrollPanel = new RTextScrollPane(this.textArea); |
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this.scrollPanel.setBackground((Color) uidefaults.get("EditorPane.background")); |
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this.scrollPanel.setForeground((Color) uidefaults.get("EditorPane.foreground")); |
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this.scrollPanel.setFont((Font) uidefaults.get("EditorPane.font")); |
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this.scrollPanel.setIconRowHeaderEnabled(true); |
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this.scrollPanel.setLineNumbersEnabled(true); |
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this.scrollPanel.setFoldIndicatorEnabled(true); |
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panel = new JPanel(); |
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panel.setLayout(new BorderLayout()); |
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panel.add(scrollPanel, BorderLayout.CENTER);
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panel.add(lineTrackerPanel,BorderLayout.EAST);
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findToolBar = new MyFindToolBar(this); |
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replaceToolBar = new MyReplaceToolBar(this); |
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replaceToolBar.setSearchContext(findToolBar.getSearchContext()); |
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csp = new CollapsibleSectionPanel();
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csp.add(scrollPanel); |
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panel.add(csp, BorderLayout.CENTER);
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int ctrl = (KeyEvent.CTRL_MASK | KeyEvent.ALT_MASK); |
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KeyStroke ks = KeyStroke.getKeyStroke(KeyEvent.VK_F, ctrl); |
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csp.addBottomComponent(ks, findToolBar); |
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ks = KeyStroke.getKeyStroke(KeyEvent.VK_H, ctrl); |
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csp.addBottomComponent(ks, replaceToolBar); |
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textArea.addKeyListener(new KeyListener() { |
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@Override
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public void keyTyped(KeyEvent ke) { |
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} |
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@Override
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public void keyPressed(KeyEvent ke) { |
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if (ke.getModifiers() == (KeyEvent.CTRL_MASK | KeyEvent.ALT_MASK)) { |
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if (ke.getKeyCode() == KeyEvent.VK_H) { |
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csp.showBottomComponent(replaceToolBar); |
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} else if (ke.getKeyCode() == KeyEvent.VK_F) { |
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csp.showBottomComponent(findToolBar); |
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} |
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} |
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} |
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@Override
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public void keyReleased(KeyEvent ke) { |
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} |
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}); |
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} |
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protected void init() { |
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textArea.setSyntaxEditingStyle(SyntaxConstants.SYNTAX_STYLE_PYTHON); |
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textArea.setCodeFoldingEnabled(true);
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textArea.setClearWhitespaceLinesEnabled(true);
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textArea.setAutoIndentEnabled(true);
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textArea.setCloseCurlyBraces(true);
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textArea.setWhitespaceVisible(true);
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textArea.setAnimateBracketMatching(true);
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textArea.setBracketMatchingEnabled(true);
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textArea.setAutoIndentEnabled(true);
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textArea.setTabsEmulated(true);
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textArea.setTabSize(2);
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textArea.setAntiAliasingEnabled(true);
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textArea.addCaretListener(new CaretListener() { |
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public void caretUpdate(CaretEvent e) { |
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if (updateCaretPosition == null) { |
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return;
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} |
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updateCaretPosition.actionPerformed( |
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new DefaultUpdateCaretPositionActionEvent(textArea, 1, "position", textArea.getCaretLineNumber(), textArea.getCaretOffsetFromLineStart()) |
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); |
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} |
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}); |
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CompletionProvider provider = new MyCompletionProvider(python_keywords);
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AutoCompletion ac = new AutoCompletion(provider);
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ac.setListCellRenderer(new MyListCellRenderer());
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ac.setTriggerKey(KeyStroke.getKeyStroke(KeyEvent.VK_SPACE, InputEvent.CTRL_DOWN_MASK)); |
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ac.install(textArea); |
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} |
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private ScriptingUIManager getUIManager() {
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if( this.scriptingUIManager==null ) { |
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this.scriptingUIManager = ScriptingSwingLocator.getUIManager();
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} |
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return this.scriptingUIManager; |
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} |
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private ImageIcon getIcon(String key) { |
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ImageIcon icon = this.getUIManager().getIcon(key); |
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return icon;
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} |
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|
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private static class MyListCellRenderer extends DefaultListCellRenderer { |
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@Override
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public Component getListCellRendererComponent(JList<?> list, Object value, int index, boolean isSelected, boolean cellHasFocus) { |
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Component comp = super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus); //To change body of generated methods, choose Tools | Templates. |
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((JLabel) comp).setIcon(((Completion) value).getIcon());
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return comp;
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} |
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|
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} |
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private String[] python_keywords = new String[]{ |
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"except",
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"class",
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"continue",
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"else",
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"finally",
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"if",
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"elif",
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"in",
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"return",
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"raise",
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"try",
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"while",
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"def",
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"print",
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"globals",
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"for",
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"pass",
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"from",
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"import",
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"True",
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"False",
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"None",
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"self",
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"break",
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"__init__",
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"__len__",
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"__str__",
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"__repr__",
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"__call__",
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"__iter__",
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"__class__",
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"__getattr__",
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"__setattr__",
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"__delattr__",
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"__getitem__",
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"__setitem__",
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"__delitem__",
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"__getslice__",
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"__setslice__",
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"__delslice__",
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"__getattribute__",
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"__setattribute__",
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"__contains__",
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"__reduce__",
|
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"__cmp__",
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"__eq__",
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"__ne__",
|
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"__lt__",
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"__le__",
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"__gt__",
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"__ge__",
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"__mul__",
|
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"__imul__",
|
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"__rmul__",
|
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"__add__",
|
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"__iadd__",
|
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"__radd__",
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"__mod__",
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"__rmod__",
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"int",
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"unicode",
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"str",
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"float",
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"long",
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"list",
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"tuple",
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"dict",
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"iter",
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"vars",
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"isinstance",
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"dir",
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"repr",
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"reduce",
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"zip",
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"chr",
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"hex",
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"id",
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"max",
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"min",
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"oct",
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"pow",
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"ord",
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"unichr",
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"range",
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"xrange",
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"abs",
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"len",
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"apply",
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"open",
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"getattr",
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"setattr",
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"hasattr"
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}; |
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|
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private class MyCompletionProvider extends DefaultCompletionProvider { |
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|
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private List<Completion> keywords; |
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private Icon keywordIcon; |
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private Icon wordIcon; |
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|
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public MyCompletionProvider(String[] keywords) { |
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ClassLoader loader = this.getClass().getClassLoader(); |
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URL url = loader.getResource("org/gvsig/scripting/swing/impl/syntaxhighlight/images/autocompletion_keywords.png"); |
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if (url != null) { |
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keywordIcon = new ImageIcon(url); |
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} |
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url = loader.getResource("org/gvsig/scripting/swing/impl/syntaxhighlight/images/autocompletion_words.png");
|
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if (url != null) { |
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wordIcon = new ImageIcon(url); |
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} |
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|
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this.keywords = new ArrayList<>(); |
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for (String keyword : keywords) { |
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BasicCompletion completion = new BasicCompletion(this, keyword); |
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completion.setIcon(keywordIcon); |
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this.keywords.add(completion);
|
535 |
} |
536 |
} |
537 |
|
538 |
|
539 |
|
540 |
@Override
|
541 |
protected List<Completion> getCompletionsImpl(JTextComponent comp) { |
542 |
TreeSet all = new TreeSet(); |
543 |
all.addAll(this.keywords);
|
544 |
|
545 |
String s = comp.getText();
|
546 |
String[] x = StringUtils.split(s, "\\ \n\t\r!\"><'@#|$%&/()=??,.;:{}[]*-+"); |
547 |
TreeSet<String> words = new TreeSet(new Comparator<String>() { |
548 |
@Override
|
549 |
public int compare(String o1, String o2) { |
550 |
return o1.compareTo(o2);
|
551 |
} |
552 |
}); |
553 |
words.addAll(Arrays.asList(x));
|
554 |
for (String word : words) { |
555 |
BasicCompletion completion = new BasicCompletion(this, word); |
556 |
completion.setIcon(wordIcon); |
557 |
completion.setRelevance(10);
|
558 |
all.add(completion); |
559 |
} |
560 |
completions = new ArrayList<>(); |
561 |
completions.addAll(all); |
562 |
return super.getCompletionsImpl(comp); |
563 |
} |
564 |
|
565 |
} |
566 |
|
567 |
private String normalizeContentType(String s) { |
568 |
s = s.toLowerCase(); |
569 |
if (this.contentTypeAlias.containsKey(s)) { |
570 |
s = this.contentTypeAlias.get(s);
|
571 |
} |
572 |
return s;
|
573 |
} |
574 |
|
575 |
public void setContentType(String contentType) { |
576 |
TokenMakerFactory factory = TokenMakerFactory.getDefaultInstance(); |
577 |
Set<String> mimetypes = factory.keySet(); |
578 |
String mimetype = this.normalizeContentType(contentType); |
579 |
if( !mimetypes.contains(mimetype)) {
|
580 |
mimetype = mimetype.replace("-source", ""); |
581 |
if( !mimetypes.contains(mimetype)) {
|
582 |
mimetype = mimetype.replace("/x-", "/"); |
583 |
if( !mimetypes.contains(mimetype)) {
|
584 |
mimetype = this.normalizeContentType(contentType);
|
585 |
} |
586 |
} |
587 |
} |
588 |
this.textArea.setSyntaxEditingStyle(mimetype);
|
589 |
} |
590 |
|
591 |
public JScrollPane getJScrollPane() { |
592 |
return this.scrollPanel; |
593 |
} |
594 |
|
595 |
public JTextComponent getJTextComponent() { |
596 |
return this.textArea; |
597 |
} |
598 |
|
599 |
@Override
|
600 |
public JComponent asJComponent() { |
601 |
return this.panel; |
602 |
} |
603 |
|
604 |
public String getContentType() { |
605 |
return this.textArea.getSyntaxEditingStyle(); |
606 |
} |
607 |
|
608 |
public void addUpdateCaretPositionActionListener(ActionListener updateCaretPosition) { |
609 |
this.updateCaretPosition = updateCaretPosition;
|
610 |
} |
611 |
|
612 |
public void setText(String text) { |
613 |
this.textArea.setText(text);
|
614 |
} |
615 |
|
616 |
public String getText() { |
617 |
return this.textArea.getText(); |
618 |
} |
619 |
|
620 |
public void addKeyListener(KeyListener keyListener) { |
621 |
this.textArea.addKeyListener(keyListener);
|
622 |
} |
623 |
|
624 |
@Override
|
625 |
public void searchEvent(SearchEvent e) { |
626 |
|
627 |
SearchEvent.Type type = e.getType(); |
628 |
SearchContext context = e.getSearchContext(); |
629 |
SearchResult result = null; |
630 |
|
631 |
switch (type) {
|
632 |
default: // Prevent FindBugs warning later |
633 |
case MARK_ALL:
|
634 |
result = SearchEngine.markAll(textArea, context); |
635 |
break;
|
636 |
case FIND:
|
637 |
result = SearchEngine.find(textArea, context); |
638 |
if (!result.wasFound()) {
|
639 |
textArea.getCaret().setDot(0);
|
640 |
result = SearchEngine.find(textArea, context); |
641 |
if (!result.wasFound()) {
|
642 |
UIManager.getLookAndFeel().provideErrorFeedback(textArea);
|
643 |
} |
644 |
} |
645 |
break;
|
646 |
case REPLACE:
|
647 |
result = SearchEngine.replace(textArea, context); |
648 |
if (!result.wasFound()) {
|
649 |
UIManager.getLookAndFeel().provideErrorFeedback(textArea);
|
650 |
} |
651 |
break;
|
652 |
case REPLACE_ALL:
|
653 |
result = SearchEngine.replaceAll(textArea, context); |
654 |
JOptionPane.showMessageDialog(null, result.getCount() |
655 |
+ " occurrences replaced.");
|
656 |
break;
|
657 |
} |
658 |
String text = null; |
659 |
if (result.wasFound()) {
|
660 |
text = "Text found; occurrences marked: " + result.getMarkedCount();
|
661 |
} else if (type == SearchEvent.Type.MARK_ALL) { |
662 |
if (result.getMarkedCount() > 0) { |
663 |
text = "Occurrences marked: " + result.getMarkedCount();
|
664 |
} else {
|
665 |
text = "";
|
666 |
} |
667 |
} else {
|
668 |
text = "Text not found";
|
669 |
} |
670 |
//setMessage(text);
|
671 |
} |
672 |
|
673 |
@Override
|
674 |
public String getSelectedText() { |
675 |
return textArea.getSelectedText();
|
676 |
} |
677 |
|
678 |
/**
|
679 |
*
|
680 |
*/
|
681 |
@Override
|
682 |
public void discardAllEdits() { |
683 |
this.textArea.discardAllEdits();
|
684 |
} |
685 |
|
686 |
@Override
|
687 |
public void removeTrackingIcons() { |
688 |
this.scrollPanel.getGutter().removeAllTrackingIcons();
|
689 |
this.iconsTracker.removeAll();
|
690 |
this.lineTrackerPanel.removeLineTrackers();
|
691 |
} |
692 |
|
693 |
@Override
|
694 |
public void addLineTrackingIcon(String tag, int line, Icon icon, String tip) { |
695 |
addLineTrackingIcon(tag, line, icon, tip, Color.BLUE.darker());
|
696 |
} |
697 |
|
698 |
@Override
|
699 |
public void addLineTrackingIcon(String tag, int line, Icon icon, String tip, Color color) { |
700 |
try {
|
701 |
GutterIconInfo x = this.scrollPanel.getGutter().addLineTrackingIcon(line,icon,tip);
|
702 |
this.iconsTracker.add(tag, x);
|
703 |
this.lineTrackerPanel.addLineTracker(tag, line, tip, color);
|
704 |
} catch (BadLocationException ex) { |
705 |
throw new RuntimeException("Can't add tracking icon with tag '"+tag+"' in line '"+line+"', tip='"+tip+"'", ex); |
706 |
} |
707 |
} |
708 |
|
709 |
@Override
|
710 |
public void removeTrackingIcons(String tag) { |
711 |
Set<GutterIconInfo> icontags = this.iconsTracker.get(tag); |
712 |
if( icontags!=null ) { |
713 |
for (GutterIconInfo icontag : icontags) {
|
714 |
this.scrollPanel.getGutter().removeTrackingIcon(icontag);
|
715 |
} |
716 |
this.iconsTracker.remove(tag);
|
717 |
} |
718 |
this.lineTrackerPanel.removeLineTrackers(tag);
|
719 |
} |
720 |
|
721 |
@Override
|
722 |
public void gotoline(final int line) { |
723 |
JTextComponent component = getJTextComponent();
|
724 |
|
725 |
Element root = component.getDocument().getDefaultRootElement();
|
726 |
int lineno = Math.max(line, 1); |
727 |
int maxlines = root.getElementCount();
|
728 |
lineno = Math.min(lineno, maxlines);
|
729 |
int startOfLineOffset = root.getElement( lineno - 1 ).getStartOffset(); |
730 |
component.setCaretPosition( startOfLineOffset ); |
731 |
|
732 |
Container container = SwingUtilities.getAncestorOfClass(JViewport.class, component); |
733 |
if (container == null) { |
734 |
return;
|
735 |
} |
736 |
try {
|
737 |
Rectangle r = component.modelToView(component.getCaretPosition());
|
738 |
JViewport viewport = (JViewport) container; |
739 |
int extentHeight = viewport.getExtentSize().height;
|
740 |
int viewHeight = viewport.getViewSize().height;
|
741 |
|
742 |
int y = Math.max(0, r.y - ((extentHeight - r.height) / 2)); |
743 |
y = Math.min(y, viewHeight - extentHeight);
|
744 |
|
745 |
viewport.setViewPosition(new Point(0, y)); |
746 |
} catch (BadLocationException ble) { |
747 |
ble.printStackTrace(); |
748 |
} |
749 |
try {
|
750 |
component.setCaretPosition( startOfLineOffset+1 );
|
751 |
} catch (Exception e) { |
752 |
e.printStackTrace(); |
753 |
} |
754 |
} |
755 |
|
756 |
} |