Examples of javax.swing.plaf.metal.MetalTreeUI

javax.swing.plaf.metal.MetalTreeUI

The metal look and feel implementation of TreeUI.

MetalTreeUI allows for configuring how to visually render the spacing and delineation between nodes. The following hints are supported:

Angled	A line is drawn connecting the child to the parent. For handling of the root node refer to {@link javax.swing.JTree#setRootVisible} and{@link javax.swing.JTree#setShowsRootHandles}.
Horizontal	A horizontal line is drawn dividing the children of the root node.
None	Do not draw any visual indication between nodes.

As it is typically impractical to obtain the TreeUI from the JTree and cast to an instance of MetalTreeUI you enable this property via the client property JTree.lineStyle. For example, to switch to Horizontal style you would do: tree.putClientProperty("JTree.lineStyle", "Horizontal");

The default is Angled. @author Tom Santos @author Steve Wilson (value add stuff)


    public void updateUI() {
        super.updateUI();


        if (!Util.isNimbusLaF()) {
            MetalTreeUI newUI = new MetalTreeUI() {
                @Override
                protected void paintRow(Graphics g, Rectangle clipBounds, Insets insets, Rectangle bounds, TreePath path, int row, boolean isExpanded, boolean hasBeenExpanded, boolean isLeaf) {
                    if (tree.isRowSelected(row)) {
                        Color bgColor;
                        bgColor = ((DefaultTreeCellRenderer) currentCellRenderer).getBackgroundSelectionColor();

Examples of javax.swing.plaf.metal.MetalTreeUI

Related Classes of javax.swing.plaf.metal.MetalTreeUI