/** @return Point in layered pane coordinate system */
static Pair<Point, Short> chooseBestHintPosition(
Project project,
Editor editor,
int line,
int col,
LightweightHint hint,
boolean awtTooltip,
short preferredPosition) {
HintManagerImpl hintManager = HintManagerImpl.getInstanceImpl();
Dimension hintSize = hint.getComponent().getPreferredSize();
JComponent editorComponent = editor.getComponent();
JLayeredPane layeredPane = editorComponent.getRootPane().getLayeredPane();
Point p1;
Point p2;
boolean isLookupShown = LookupManager.getInstance(project).getActiveLookup() != null;
if (isLookupShown) {
p1 = hintManager.getHintPosition(hint, editor, HintManager.UNDER);
p2 = hintManager.getHintPosition(hint, editor, HintManager.ABOVE);
} else {
LogicalPosition pos = new LogicalPosition(line, col);
p1 = HintManagerImpl.getHintPosition(hint, editor, pos, HintManager.UNDER);
p2 = HintManagerImpl.getHintPosition(hint, editor, pos, HintManager.ABOVE);
}
if (!awtTooltip) {
p1.x = Math.min(p1.x, layeredPane.getWidth() - hintSize.width);
p1.x = Math.max(p1.x, 0);
p2.x = Math.min(p2.x, layeredPane.getWidth() - hintSize.width);
p2.x = Math.max(p2.x, 0);
}
boolean p1Ok = p1.y + hintSize.height < layeredPane.getHeight();
boolean p2Ok = p2.y >= 0;
if (isLookupShown) {
if (p1Ok) return new Pair<Point, Short>(p1, HintManager.UNDER);
if (p2Ok) return new Pair<Point, Short>(p2, HintManager.ABOVE);
} else {
if (preferredPosition != HintManager.DEFAULT) {
if (preferredPosition == HintManager.ABOVE) {
if (p2Ok) return new Pair<Point, Short>(p2, HintManager.ABOVE);
} else if (preferredPosition == HintManager.UNDER) {
if (p1Ok) return new Pair<Point, Short>(p1, HintManager.UNDER);
}
}
if (p1Ok) return new Pair<Point, Short>(p1, HintManager.UNDER);
if (p2Ok) return new Pair<Point, Short>(p2, HintManager.ABOVE);
}
int underSpace = layeredPane.getHeight() - p1.y;
int aboveSpace = p2.y;
return aboveSpace > underSpace
? new Pair<Point, Short>(new Point(p2.x, 0), HintManager.UNDER)
: new Pair<Point, Short>(p1, HintManager.ABOVE);
}
@Override
@NotNull
public Pair<Point, Short> getBestPointPosition(
LightweightHint hint,
final PsiElement list,
int offset,
final boolean awtTooltip,
short preferredPosition) {
if (list != null) {
TextRange range = list.getTextRange();
if (!range.contains(offset)) {
offset = range.getStartOffset() + 1;
}
}
if (previousOffset == offset) return Pair.create(previousBestPoint, previousBestPosition);
final boolean isMultiline =
list != null && StringUtil.containsAnyChar(list.getText(), "\n\r");
final LogicalPosition pos = myEditor.offsetToLogicalPosition(offset);
Pair<Point, Short> position;
if (!isMultiline) {
position =
chooseBestHintPosition(
myEditor.getProject(),
myEditor,
pos.line,
pos.column,
hint,
awtTooltip,
preferredPosition);
} else {
Point p = HintManagerImpl.getHintPosition(hint, myEditor, pos, HintManager.ABOVE);
position = new Pair<Point, Short>(p, HintManager.ABOVE);
}
previousBestPoint = position.getFirst();
previousBestPosition = position.getSecond();
previousOffset = offset;
return position;
}