Java Utililty Methods JComponent Properties

List of utility methods to do JComponent Properties

  1. HOME
  2. Java
  3. J
  4. JComponent Properties

Description

The list of methods to do JComponent Properties are organized into topic(s).

Method

booleanisActive(JComponent c)
is Active 
if (c == null) {
    return false;
boolean active = true;
if (c instanceof JInternalFrame) {
    active = ((JInternalFrame) c).isSelected();
if (active) {
...
booleanisComponentShowing(final JComponent component)
A convenience method to centralise all isShowing() calls. 
if (component != null) {
    return (component.isShowing());
} else {
    return (false);
booleanisHorizontallyVisible(JComponent c, int from, int to)
is Horizontally Visible 
Rectangle visible = c.getVisibleRect();
return visible.x <= from && visible.x + visible.width >= to;
booleanisMandatory(JComponent comp)
Returns if the component has been marked as mandatory. 
return Boolean.TRUE.equals(comp.getClientProperty(MANDATORY_KEY));
booleanisMarker(JComponent component)
is Marker 
return (component instanceof JLabel) && (MARKER_NAME.equals(component.getName()));
booleanisOver(JComponent c)
is Over 
java.awt.Point p = MouseInfo.getPointerInfo().getLocation();
return (p.getX() > c.getX() && p.getY() > c.getY() && p.getX() < (c.getWidth() + c.getX())
        && p.getY() < (c.getHeight() + c.getY()));
booleanisOverlapping(JComponent comp1, JComponent comp2)
Utility method. 
return isOverlapping(comp1.getBounds(), comp2.getBounds());
booleanisPasteEnabled(JComponent component)
Returns whether the component can perform a paste operation. 
return getBooleanClientProperty(component, PASTE_CLIENT_PROPERTY);
booleanisRectangularSelection(JComponent c)
is Rectangular Selection 
return Boolean.TRUE.equals(c.getClientProperty(RECTANGULAR_SELECTION_PROPERTY));
booleanisRequired(JComponent component)
Determines if the supplied field is required. 
Boolean bool = (Boolean) component.getClientProperty(REQUIRED);
return bool != null ? bool.booleanValue() : false;