@Override public void mousePressed(MouseEvent e) { // JList list = (JList) e.getComponent(); Point pt = e.getPoint(); int index = list.locationToIndex(pt); if (index >= 0) { JButton button = getButton(list, pt, index); if (Objects.nonNull(button)) { ButtonsRenderer renderer = (ButtonsRenderer) list.getCellRenderer(); renderer.pressedIndex = index; renderer.button = button; listRepaint(list, list.getCellBounds(index, index)); } } }
@Override public void mouseMoved(MouseEvent e) { JList list = (JList) e.getComponent(); Point pt = e.getPoint(); int index = list.locationToIndex(pt); if (!list.getCellBounds(index, index).contains(pt)) { if (prevIndex >= 0) { Rectangle r = list.getCellBounds(prevIndex, prevIndex); listRepaint(list, r); } index = -1; prevButton = null; return; } if (index >= 0) { JButton button = getButton(list, pt, index); ButtonsRenderer renderer = (ButtonsRenderer) list.getCellRenderer(); if (Objects.nonNull(button)) { renderer.rolloverIndex = index; if (!button.equals(prevButton)) { Rectangle r = list.getCellBounds(prevIndex, index); listRepaint(list, r); } } else { renderer.rolloverIndex = -1; Rectangle r = null; if (prevIndex == index) { if (prevIndex >= 0 && Objects.nonNull(prevButton)) { r = list.getCellBounds(prevIndex, prevIndex); } } else { r = list.getCellBounds(index, index); } listRepaint(list, r); prevIndex = -1; } prevButton = button; } prevIndex = index; }
@Override public void mouseExited(MouseEvent e) { JList list = (JList) e.getComponent(); ButtonsRenderer renderer = (ButtonsRenderer) list.getCellRenderer(); renderer.rolloverIndex = -1; }