Example usage for javax.swing ListCellRenderer getListCellRendererComponent

Introduction

In this page you can find the example usage for javax.swing ListCellRenderer getListCellRendererComponent.

Prototype

Component getListCellRendererComponent(JList<? extends E> list, E value, int index, boolean isSelected,
        boolean cellHasFocus);

Source Link

Document

Return a component that has been configured to display the specified value.

Usage

From source file:Main.java

/**
 * Returns true if the given point is within the actual bounds of the
 * JList item at index (not just inside the cell).
 *///from  w  ww  . j av  a  2s . c o  m
private static boolean pointIsInActualBounds(JList list, int index, Point point) {
    ListCellRenderer renderer = list.getCellRenderer();
    ListModel dataModel = list.getModel();
    Object value = dataModel.getElementAt(index);
    Component item = renderer.getListCellRendererComponent(list, value, index, false, false);
    Dimension itemSize = item.getPreferredSize();
    Rectangle cellBounds = list.getCellBounds(index, index);
    if (!item.getComponentOrientation().isLeftToRight()) {
        cellBounds.x += (cellBounds.width - itemSize.width);
    }
    cellBounds.width = itemSize.width;

    return cellBounds.contains(point);
}

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From source file:Main.java

/**
 *
 * @param list/*from  w w  w.ja  v  a  2 s . c  o  m*/
 * @param index
 * @param point
 * @return
 */
public static boolean pointIsInActualBounds(JList list, int index, Point point) {
    ListCellRenderer renderer = list.getCellRenderer();
    ListModel dataModel = list.getModel();
    Object value = dataModel.getElementAt(index);
    Component item = renderer.getListCellRendererComponent(list, value, index, false, false);
    Dimension itemSize = item.getPreferredSize();
    Rectangle cellBounds = list.getCellBounds(index, index);

    if (!item.getComponentOrientation().isLeftToRight()) {
        cellBounds.x += (cellBounds.width - itemSize.width);
    }

    cellBounds.width = itemSize.width;

    return cellBounds.contains(point);
}

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