/** @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);
}
private static boolean fitsLayeredPane(
JLayeredPane pane, JComponent component, RelativePoint desiredLocation, HintHint hintHint) {
if (hintHint.isAwtTooltip()) {
Dimension size = component.getPreferredSize();
Dimension paneSize = pane.getSize();
Point target = desiredLocation.getPointOn(pane).getPoint();
Balloon.Position pos = hintHint.getPreferredPosition();
int pointer = BalloonImpl.getPointerLength(pos, false) + BalloonImpl.getNormalInset();
if (pos == Balloon.Position.above || pos == Balloon.Position.below) {
boolean heightFit =
target.y - size.height - pointer > 0
|| target.y + size.height + pointer < paneSize.height;
return heightFit && size.width + pointer < paneSize.width;
} else {
boolean widthFit =
target.x - size.width - pointer > 0 || target.x + size.width + pointer < paneSize.width;
return widthFit && size.height + pointer < paneSize.height;
}
} else {
final Rectangle lpRect =
new Rectangle(
pane.getLocationOnScreen().x,
pane.getLocationOnScreen().y,
pane.getWidth(),
pane.getHeight());
Rectangle componentRect =
new Rectangle(
desiredLocation.getScreenPoint().x,
desiredLocation.getScreenPoint().y,
component.getPreferredSize().width,
component.getPreferredSize().height);
return lpRect.contains(componentRect);
}
}
ParameterInfoComponent(
Object[] objects,
Editor editor,
@NotNull ParameterInfoHandler handler,
boolean requestFocus) {
super(new BorderLayout());
myRequestFocus = requestFocus;
if (!ApplicationManager.getApplication().isUnitTestMode()) {
JComponent editorComponent = editor.getComponent();
JLayeredPane layeredPane = editorComponent.getRootPane().getLayeredPane();
myWidthLimit = layeredPane.getWidth();
}
NORMAL_FONT = UIUtil.getLabelFont();
BOLD_FONT = NORMAL_FONT.deriveFont(Font.BOLD);
myObjects = objects;
setBackground(BACKGROUND_COLOR);
myHandler = handler;
myPanels = new OneElementComponent[myObjects.length];
final JPanel panel = new JPanel(new GridBagLayout());
for (int i = 0; i < myObjects.length; i++) {
myPanels[i] = new OneElementComponent();
panel.add(
myPanels[i],
new GridBagConstraints(
0,
i,
1,
1,
1,
0,
GridBagConstraints.WEST,
GridBagConstraints.HORIZONTAL,
new Insets(0, 0, 0, 0),
0,
0));
}
if (myRequestFocus) {
AccessibleContextUtil.setName(
this, "Parameter Info. Press TAB to navigate through each element. Press ESC to close.");
}
final JScrollPane pane = ScrollPaneFactory.createScrollPane(panel);
pane.setBorder(null);
pane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
add(pane, BorderLayout.CENTER);
myCurrentParameterIndex = -1;
}