private void paintCaret(Graphics2D g_) {
EditorImpl.CaretRectangle[] locations = myEditor.getCaretLocations(true);
if (locations == null) return;
Graphics2D g = IdeBackgroundUtil.getOriginalGraphics(g_);
int lineHeight = myView.getLineHeight();
EditorSettings settings = myEditor.getSettings();
Color caretColor = myEditor.getColorsScheme().getColor(EditorColors.CARET_COLOR);
if (caretColor == null) caretColor = new JBColor(CARET_DARK, CARET_LIGHT);
g.setColor(caretColor);
for (EditorImpl.CaretRectangle location : locations) {
int x = location.myPoint.x;
int y = location.myPoint.y;
Caret caret = location.myCaret;
boolean isRtl = location.myIsRtl;
if (myEditor.isInsertMode() != settings.isBlockCursor()) {
int lineWidth = JBUI.scale(settings.getLineCursorWidth());
g.fillRect(x, y, lineWidth, lineHeight);
if (myDocument.getTextLength() > 0
&& caret != null
&& !myView.getLineLayout(caret.getLogicalPosition().line).isLtr()) {
g.fillPolygon(
new int[] {
isRtl ? x + lineWidth : x,
isRtl ? x + lineWidth - CARET_DIRECTION_MARK_SIZE : x + CARET_DIRECTION_MARK_SIZE,
isRtl ? x + lineWidth : x
},
new int[] {y, y, y + CARET_DIRECTION_MARK_SIZE},
3);
}
} else {
int width = location.myWidth;
int startX = Math.max(0, isRtl ? x - width : x);
g.fillRect(startX, y, width, lineHeight - 1);
if (myDocument.getTextLength() > 0 && caret != null) {
int targetVisualColumn = caret.getVisualPosition().column;
for (VisualLineFragmentsIterator.Fragment fragment :
VisualLineFragmentsIterator.create(myView, caret.getVisualLineStart(), false)) {
int startVisualColumn = fragment.getStartVisualColumn();
int endVisualColumn = fragment.getEndVisualColumn();
if (startVisualColumn < targetVisualColumn && endVisualColumn > targetVisualColumn
|| startVisualColumn == targetVisualColumn && !isRtl
|| endVisualColumn == targetVisualColumn && isRtl) {
g.setColor(ColorUtil.isDark(caretColor) ? CARET_LIGHT : CARET_DARK);
fragment.draw(
g,
startX,
y + myView.getAscent(),
targetVisualColumn - startVisualColumn - (isRtl ? 1 : 0),
targetVisualColumn - startVisualColumn + (isRtl ? 0 : 1));
break;
}
}
}
}
}
}
private Map<Integer, Couple<Integer>> createVirtualSelectionMap(
int startVisualLine, int endVisualLine) {
HashMap<Integer, Couple<Integer>> map = new HashMap<Integer, Couple<Integer>>();
for (Caret caret : myEditor.getCaretModel().getAllCarets()) {
if (caret.hasSelection()) {
VisualPosition selectionStart = caret.getSelectionStartPosition();
VisualPosition selectionEnd = caret.getSelectionEndPosition();
if (selectionStart.line == selectionEnd.line) {
int line = selectionStart.line;
if (line >= startVisualLine && line <= endVisualLine) {
map.put(line, Couple.of(selectionStart.column, selectionEnd.column));
}
}
}
}
return map;
}