public Rectangle getCursorBounds() {
Range range = getSession().getSelection().getRange();
Renderer renderer = widget_.getEditor().getRenderer();
ScreenCoordinates start =
renderer.textToScreenCoordinates(range.getStart().getRow(), range.getStart().getColumn());
ScreenCoordinates end =
renderer.textToScreenCoordinates(range.getEnd().getRow(), range.getEnd().getColumn());
return new Rectangle(
start.getPageX(),
start.getPageY(),
end.getPageX() - start.getPageX(),
renderer.getLineHeight());
}
public boolean shouldComplete(NativeEvent event) {
// Never complete if there's an active selection
Range range = getSession().getSelection().getRange();
if (!range.isEmpty()) return false;
// Don't consider Tab to be a completion if we're at the start of a
// line (e.g. only zero or more whitespace characters between the
// beginning of the line and the cursor)
if (event != null && event.getKeyCode() != KeyCodes.KEY_TAB) return true;
int col = range.getStart().getColumn();
if (col == 0) return false;
String row = getSession().getLine(range.getStart().getRow());
return row.substring(0, col).trim().length() != 0;
}
private void indentPastedRange(Range range) {
if (fileType_ == null
|| !fileType_.canAutoIndent()
|| !RStudioGinjector.INSTANCE.getUIPrefs().reindentOnPaste().getValue()) {
return;
}
String firstLinePrefix =
getSession()
.getTextRange(
Range.fromPoints(Position.create(range.getStart().getRow(), 0), range.getStart()));
if (firstLinePrefix.trim().length() != 0) {
Position newStart = Position.create(range.getStart().getRow() + 1, 0);
if (newStart.compareTo(range.getEnd()) >= 0) return;
range = Range.fromPoints(newStart, range.getEnd());
}
getSession().reindent(range);
}
@Override
public InputEditorSelection search(
String needle,
boolean backwards,
boolean wrap,
boolean caseSensitive,
boolean wholeWord,
Position start,
Range range,
boolean regexpMode) {
Search search =
Search.create(needle, backwards, wrap, caseSensitive, wholeWord, start, range, regexpMode);
Range resultRange = search.find(getSession());
if (resultRange != null) {
return createSelection(resultRange.getStart(), resultRange.getEnd());
} else {
return null;
}
}
public void fitSelectionToLines(boolean expand) {
Range range = getSession().getSelection().getRange();
Position start = range.getStart();
Position newStart = start;
if (start.getColumn() > 0) {
if (expand) {
newStart = Position.create(start.getRow(), 0);
} else {
String firstLine = getSession().getLine(start.getRow());
if (firstLine.substring(0, start.getColumn()).trim().length() == 0)
newStart = Position.create(start.getRow(), 0);
}
}
Position end = range.getEnd();
Position newEnd = end;
if (expand) {
int endRow = end.getRow();
if (endRow == newStart.getRow() || end.getColumn() > 0) {
// If selection ends at the start of a line, keep the selection
// there--unless that means less than one line will be selected
// in total.
newEnd = Position.create(endRow, getSession().getLine(endRow).length());
}
} else {
while (newEnd.getRow() != newStart.getRow()) {
String line = getSession().getLine(newEnd.getRow());
if (line.substring(0, newEnd.getColumn()).trim().length() != 0) break;
int prevRow = newEnd.getRow() - 1;
int len = getSession().getLine(prevRow).length();
newEnd = Position.create(prevRow, len);
}
}
getSession().getSelection().setSelectionRange(Range.fromPoints(newStart, newEnd));
}
public int getSelectionOffset(boolean start) {
Range range = getSession().getSelection().getRange();
if (start) return range.getStart().getColumn();
else return range.getEnd().getColumn();
}
public void replaceSelection(String code) {
Range selRange = getSession().getSelection().getRange();
Position position = getSession().replace(selRange, code);
Range range = Range.fromPoints(selRange.getStart(), position);
getSession().getSelection().setSelectionRange(range);
}
public void collapseSelection(boolean collapseToStart) {
Selection selection = getSession().getSelection();
Range rng = selection.getRange();
Position pos = collapseToStart ? rng.getStart() : rng.getEnd();
selection.setSelectionRange(Range.fromPoints(pos, pos));
}
public InputEditorSelection getSelection() {
Range selection = getSession().getSelection().getRange();
return new InputEditorSelection(
new AceInputEditorPosition(getSession(), selection.getStart()),
new AceInputEditorPosition(getSession(), selection.getEnd()));
}