public class MarkOccurrencesHighlighter implements CaretListener {
private static final AttributeSet defaultColors =
AttributesUtilities.createImmutable(StyleConstants.Background, new Color(236, 235, 163));
private final OffsetsBag bag;
private JTextComponent comp;
private final WeakReference<Document> weakDoc;
private final RequestProcessor rp;
private static final int REFRESH_DELAY = 100;
private RequestProcessor.Task lastRefreshTask;
public MarkOccurrencesHighlighter(Document doc) {
rp = new RequestProcessor(MarkOccurrencesHighlighter.class);
bag = new OffsetsBag(doc);
weakDoc = new WeakReference<Document>((Document) doc);
DataObject dobj = NbEditorUtilities.getDataObject(weakDoc.get());
if (dobj != null) {
EditorCookie pane = dobj.getLookup().lookup(EditorCookie.class);
JEditorPane[] panes = pane.getOpenedPanes();
if (panes != null && panes.length > 0) {
comp = panes[0];
comp.addCaretListener(this);
}
}
}
@Override
public void caretUpdate(CaretEvent e) {
bag.clear();
setupAutoRefresh();
}
public void setupAutoRefresh() {
if (lastRefreshTask == null) {
lastRefreshTask =
rp.create(
new Runnable() {
@Override
public void run() {
String selection = comp.getSelectedText();
if (selection != null) {
Pattern p = Pattern.compile(selection);
Matcher m = p.matcher(comp.getText());
while (m.find() == true) {
int startOffset = m.start();
int endOffset = m.end();
bag.addHighlight(startOffset, endOffset, defaultColors);
}
}
}
});
}
lastRefreshTask.schedule(REFRESH_DELAY);
}
public OffsetsBag getHighlightsBag() {
return bag;
}
}
/** @author SessonaD */
public class OccurrencesHighlighter implements CaretListener {
private static final AttributeSet defaultColors =
AttributesUtilities.createImmutable(StyleConstants.Background, new Color(236, 235, 163));
private final OffsetsBag bag;
private JTextComponent comp;
private final WeakReference<Document> weakDoc;
private final RequestProcessor rp;
private static final int DELAY = 100;
private RequestProcessor.Task refreshTask;
static List<String> keywords = GherkinCompletionNames.getKeywordsFormatching();
public OccurrencesHighlighter(Document doc) {
rp = new RequestProcessor(OccurrencesHighlighter.class);
bag = new OffsetsBag(doc);
weakDoc = new WeakReference<Document>((Document) doc);
DataObject dobj = NbEditorUtilities.getDataObject(weakDoc.get());
if (dobj != null) {
EditorCookie pane = dobj.getLookup().lookup(EditorCookie.class);
JEditorPane[] panes = pane.getOpenedPanes();
if (panes != null && panes.length > 0) {
comp = panes[0];
comp.addCaretListener(this);
}
}
}
@Override
public void caretUpdate(CaretEvent e) {
bag.clear();
setupAutoRefresh();
}
public void setupAutoRefresh() {
if (refreshTask == null) {
refreshTask =
rp.create(
new Runnable() {
@Override
public void run() {
String selection = comp.getSelectedText();
if (selection != null && !isKeyword(selection)) {
Pattern p = Pattern.compile(selection);
Matcher m = p.matcher(comp.getText());
// for some reason the matcher skips the \n chars
// so i am finding them all and subtracting them
// from the resulting start and end offset.
while (m.find() == true) {
int startOffset = m.start();
int numberOfLineFeed =
comp.getText().substring(0, startOffset).split("\n").length - 1;
startOffset = startOffset - numberOfLineFeed;
int endOffset = m.end() - numberOfLineFeed;
bag.addHighlight(startOffset, endOffset, defaultColors);
}
}
}
});
refreshTask.setPriority(Thread.MIN_PRIORITY);
}
refreshTask.schedule(DELAY);
}
public boolean isKeyword(String selection) {
return keywords.contains(selection);
}
public OffsetsBag getHighlightsBag() {
return bag;
}
}