private void showHint(Info info) {
if (myDisposed) return;
Component internalComponent = myEditor.getContentComponent();
if (myHighlighter != null) {
if (!info.isSimilarTo(myHighlighter.getStoredInfo())) {
disposeHighlighter();
} else {
// highlighter already set
internalComponent.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
return;
}
}
if (info.isValid(myEditor.getDocument())) {
myHighlighter = installHighlighterSet(info, myEditor);
String text = info.getInfo();
if (text == null) return;
JComponent label = HintUtil.createInformationLabel(text);
final LightweightHint hint = new LightweightHint(label);
final HintManagerImpl hintManager = HintManagerImpl.getInstanceImpl();
Point p = HintManagerImpl.getHintPosition(hint, myEditor, myPosition, HintManager.ABOVE);
hintManager.showEditorHint(
hint,
myEditor,
p,
HintManager.HIDE_BY_ANY_KEY
| HintManager.HIDE_BY_TEXT_CHANGE
| HintManager.HIDE_BY_SCROLLING,
0,
false,
HintManagerImpl.createHintHint(myEditor, p, hint, HintManager.ABOVE)
.setContentActive(false));
}
}
private HighlightersSet installHighlighterSet(Info info, Editor editor) {
final JComponent internalComponent = editor.getContentComponent();
internalComponent.addKeyListener(myEditorKeyListener);
editor.getScrollingModel().addVisibleAreaListener(myVisibleAreaListener);
final Cursor cursor = internalComponent.getCursor();
internalComponent.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
myFileEditorManager.addFileEditorManagerListener(myFileEditorManagerListener);
List<RangeHighlighter> highlighters = new ArrayList<RangeHighlighter>();
for (TextRange range : info.getRanges()) {
final RangeHighlighter highlighter =
editor
.getMarkupModel()
.addRangeHighlighter(
range.getStartOffset(),
range.getEndOffset(),
HighlighterLayer.SELECTION + 1,
ourReferenceAttributes,
HighlighterTargetArea.EXACT_RANGE);
highlighters.add(highlighter);
}
return new HighlightersSet(highlighters, editor, cursor, info);
}