593 * this {@code LayerUI} instance is set to.
594 *
595 * @param evt the PropertyChangeEvent generated by this {@code LayerUI}
596 * @param l the {@code JLayer} this LayerUI is set to
597 */
598 public void applyPropertyChange(PropertyChangeEvent evt, JLayer<? extends V> l) {
599 }
600
601 /**
602 * If the {@code JLayer}'s view component is not {@code null},
603 * this calls the view's {@code getBaseline()} method.
604 * Otherwise, the default implementation is called.
605 *
606 * @param c {@code JLayer} to return baseline resize behavior for
607 * @param width the width to get the baseline for
608 * @param height the height to get the baseline for
609 * @return baseline or a value < 0 indicating there is no reasonable
610 * baseline
611 */
612 public int getBaseline(JComponent c, int width, int height) {
613 JLayer l = (JLayer) c;
614 if (l.getView() != null) {
615 return l.getView().getBaseline(width, height);
616 }
617 return super.getBaseline(c, width, height);
618 }
619
620 /**
621 * If the {@code JLayer}'s view component is not {@code null},
622 * this returns the result of the view's {@code getBaselineResizeBehavior()} method.
623 * Otherwise, the default implementation is called.
624 *
625 * @param c {@code JLayer} to return baseline resize behavior for
626 * @return an enum indicating how the baseline changes as the component
627 * size changes
628 */
629 public Component.BaselineResizeBehavior getBaselineResizeBehavior(JComponent c) {
630 JLayer l = (JLayer) c;
631 if (l.getView() != null) {
632 return l.getView().getBaselineResizeBehavior();
633 }
634 return super.getBaselineResizeBehavior(c);
635 }
636
637 /**
638 * Causes the passed instance of {@code JLayer} to lay out its components.
639 *
640 * @param l the {@code JLayer} component where this UI delegate is being installed
641 */
642 public void doLayout(JLayer<? extends V> l) {
643 Component view = l.getView();
644 if (view != null) {
645 view.setBounds(0, 0, l.getWidth(), l.getHeight());
646 }
647 Component glassPane = l.getGlassPane();
648 if (glassPane != null) {
649 glassPane.setBounds(0, 0, l.getWidth(), l.getHeight());
650 }
651 }
652
653 /**
654 * If the {@code JLayer}'s view component is not {@code null},
655 * this returns the result of the view's {@code getPreferredSize()} method.
656 * Otherwise, the default implementation is used.
657 *
658 * @param c {@code JLayer} to return preferred size for
659 * @return preferred size for the passed {@code JLayer}
660 */
661 public Dimension getPreferredSize(JComponent c) {
662 JLayer l = (JLayer) c;
663 Component view = l.getView();
664 if (view != null) {
665 return view.getPreferredSize();
666 }
667 return super.getPreferredSize(c);
668 }
669
670 /**
671 * If the {@code JLayer}'s view component is not {@code null},
672 * this returns the result of the view's {@code getMinimalSize()} method.
673 * Otherwise, the default implementation is used.
674 *
675 * @param c {@code JLayer} to return preferred size for
676 * @return minimal size for the passed {@code JLayer}
677 */
678 public Dimension getMinimumSize(JComponent c) {
679 JLayer l = (JLayer) c;
680 Component view = l.getView();
681 if (view != null) {
682 return view.getMinimumSize();
683 }
684 return super.getMinimumSize(c);
685 }
686
687 /**
688 * If the {@code JLayer}'s view component is not {@code null},
689 * this returns the result of the view's {@code getMaximumSize()} method.
690 * Otherwise, the default implementation is used.
691 *
692 * @param c {@code JLayer} to return preferred size for
693 * @return maximum size for the passed {@code JLayer}
694 */
695 public Dimension getMaximumSize(JComponent c) {
696 JLayer l = (JLayer) c;
697 Component view = l.getView();
698 if (view != null) {
699 return view.getMaximumSize();
700 }
701 return super.getMaximumSize(c);
702 }
703
704 /**
705 * Paints the specified region in the {@code JLayer} this {@code LayerUI} is set to, immediately.
706 * <p>
707 * This method is to be overridden when the dirty region needs to be changed.
708 * The default implementation delegates its functionality to {@link JComponent#paintImmediately(int, int, int, int)}.
709 *
710 * @param x the x value of the region to be painted
711 * @param y the y value of the region to be painted
712 * @param width the width of the region to be painted
713 * @param height the height of the region to be painted
714 *
715 * @see JComponent#paintImmediately(int, int, int, int)
716 */
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593 * this {@code LayerUI} instance is set to.
594 *
595 * @param evt the PropertyChangeEvent generated by this {@code LayerUI}
596 * @param l the {@code JLayer} this LayerUI is set to
597 */
598 public void applyPropertyChange(PropertyChangeEvent evt, JLayer<? extends V> l) {
599 }
600
601 /**
602 * If the {@code JLayer}'s view component is not {@code null},
603 * this calls the view's {@code getBaseline()} method.
604 * Otherwise, the default implementation is called.
605 *
606 * @param c {@code JLayer} to return baseline resize behavior for
607 * @param width the width to get the baseline for
608 * @param height the height to get the baseline for
609 * @return baseline or a value < 0 indicating there is no reasonable
610 * baseline
611 */
612 public int getBaseline(JComponent c, int width, int height) {
613 @SuppressWarnings("unchecked")
614 JLayer<?> l = (JLayer) c;
615 if (l.getView() != null) {
616 return l.getView().getBaseline(width, height);
617 }
618 return super.getBaseline(c, width, height);
619 }
620
621 /**
622 * If the {@code JLayer}'s view component is not {@code null},
623 * this returns the result of the view's {@code getBaselineResizeBehavior()} method.
624 * Otherwise, the default implementation is called.
625 *
626 * @param c {@code JLayer} to return baseline resize behavior for
627 * @return an enum indicating how the baseline changes as the component
628 * size changes
629 */
630 public Component.BaselineResizeBehavior getBaselineResizeBehavior(JComponent c) {
631 @SuppressWarnings("unchecked")
632 JLayer<?> l = (JLayer) c;
633 if (l.getView() != null) {
634 return l.getView().getBaselineResizeBehavior();
635 }
636 return super.getBaselineResizeBehavior(c);
637 }
638
639 /**
640 * Causes the passed instance of {@code JLayer} to lay out its components.
641 *
642 * @param l the {@code JLayer} component where this UI delegate is being installed
643 */
644 public void doLayout(JLayer<? extends V> l) {
645 Component view = l.getView();
646 if (view != null) {
647 view.setBounds(0, 0, l.getWidth(), l.getHeight());
648 }
649 Component glassPane = l.getGlassPane();
650 if (glassPane != null) {
651 glassPane.setBounds(0, 0, l.getWidth(), l.getHeight());
652 }
653 }
654
655 /**
656 * If the {@code JLayer}'s view component is not {@code null},
657 * this returns the result of the view's {@code getPreferredSize()} method.
658 * Otherwise, the default implementation is used.
659 *
660 * @param c {@code JLayer} to return preferred size for
661 * @return preferred size for the passed {@code JLayer}
662 */
663 public Dimension getPreferredSize(JComponent c) {
664 @SuppressWarnings("unchecked")
665 JLayer<?> l = (JLayer) c;
666 Component view = l.getView();
667 if (view != null) {
668 return view.getPreferredSize();
669 }
670 return super.getPreferredSize(c);
671 }
672
673 /**
674 * If the {@code JLayer}'s view component is not {@code null},
675 * this returns the result of the view's {@code getMinimalSize()} method.
676 * Otherwise, the default implementation is used.
677 *
678 * @param c {@code JLayer} to return preferred size for
679 * @return minimal size for the passed {@code JLayer}
680 */
681 public Dimension getMinimumSize(JComponent c) {
682 @SuppressWarnings("unchecked")
683 JLayer<?> l = (JLayer) c;
684 Component view = l.getView();
685 if (view != null) {
686 return view.getMinimumSize();
687 }
688 return super.getMinimumSize(c);
689 }
690
691 /**
692 * If the {@code JLayer}'s view component is not {@code null},
693 * this returns the result of the view's {@code getMaximumSize()} method.
694 * Otherwise, the default implementation is used.
695 *
696 * @param c {@code JLayer} to return preferred size for
697 * @return maximum size for the passed {@code JLayer}
698 */
699 public Dimension getMaximumSize(JComponent c) {
700 @SuppressWarnings("unchecked")
701 JLayer<?> l = (JLayer) c;
702 Component view = l.getView();
703 if (view != null) {
704 return view.getMaximumSize();
705 }
706 return super.getMaximumSize(c);
707 }
708
709 /**
710 * Paints the specified region in the {@code JLayer} this {@code LayerUI} is set to, immediately.
711 * <p>
712 * This method is to be overridden when the dirty region needs to be changed.
713 * The default implementation delegates its functionality to {@link JComponent#paintImmediately(int, int, int, int)}.
714 *
715 * @param x the x value of the region to be painted
716 * @param y the y value of the region to be painted
717 * @param width the width of the region to be painted
718 * @param height the height of the region to be painted
719 *
720 * @see JComponent#paintImmediately(int, int, int, int)
721 */
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