org.kuali.test.ui.base.BaseTreeCellRenderer.java Source code

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Here is the source code for org.kuali.test.ui.base.BaseTreeCellRenderer.java

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/*
 * Copyright 2014 The Kuali Foundation
 * 
 * Licensed under the Educational Community License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * http://www.opensource.org/licenses/ecl2.php
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.kuali.test.ui.base;

import java.awt.Component;
import javax.swing.ImageIcon;
import javax.swing.JTree;
import javax.swing.UIManager;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;
import org.apache.commons.lang3.StringUtils;

/**
 *
 * @author rbtucker
 */
public class BaseTreeCellRenderer extends DefaultTreeCellRenderer {

    /**
     *
     */
    public BaseTreeCellRenderer() {
    }

    @Override
    public Component getTreeCellRendererComponent(JTree tree, Object value, boolean selected, boolean expanded,
            boolean leaf, int row, boolean hasFocus) {

        // Find out which node we are rendering and get its text
        DefaultMutableTreeNode node = (DefaultMutableTreeNode) value;

        ImageIcon icon = getIcon(node);
        if (icon != null) {
            setIcon(icon);
        }

        this.setText(node.toString());

        this.selected = selected;
        this.hasFocus = hasFocus;

        setSelectionDisplay();

        String tooltip = getTooltip(value);

        if (StringUtils.isNotBlank(tooltip)) {
            setToolTipText(tooltip);
        }

        return this;
    }

    /**
     *
     */
    protected void setSelectionDisplay() {
        if (this.selected) {
            super.setBackground(getBackgroundSelectionColor());
            setForeground(getTextSelectionColor());

            if (this.hasFocus) {
                setBorderSelectionColor(UIManager.getLookAndFeelDefaults().getColor("Tree.selectionBorderColor"));
            } else {
                setBorderSelectionColor(null);
            }
        } else {
            setBackground(getBackgroundNonSelectionColor());
            setForeground(getTextNonSelectionColor());
            setBorderSelectionColor(null);
        }
    }

    /**
     *
     * @param nod
     * @return
     */
    protected ImageIcon getIcon(DefaultMutableTreeNode nod) {
        return null;
    }

    /**
     *
     * @param value
     * @return
     */
    protected String getTooltip(Object value) {
        return null;
    }
}