NameJTree.java

/*
 * Copyright 2006-2017 ICEsoft Technologies Canada Corp.
 *
 * Licensed under the Apache 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.apache.org/licenses/LICENSE-2.0
 *
 * 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.icepdf.ri.common.utility.annotation;

import org.icepdf.ri.images.Images;

import javax.swing.*;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.TreeSelectionModel;

/**
 * Name tree component to represent a PDF documents name tree data structure.
 *
 * @since 4.0
 */
@SuppressWarnings("serial")
public class NameJTree extends JTree {
    public NameJTree() {
        getSelectionModel().setSelectionMode(
                TreeSelectionModel.SINGLE_TREE_SELECTION);
        // change the look & feel of the jtree
        DefaultTreeCellRenderer renderer = new DefaultTreeCellRenderer();
        renderer.setOpenIcon(new ImageIcon(Images.get("page.gif")));
        renderer.setClosedIcon(new ImageIcon(Images.get("page.gif")));
        renderer.setLeafIcon(new ImageIcon(Images.get("page.gif")));
        setCellRenderer(renderer);

        setModel(null);
        setRootVisible(true);
        setScrollsOnExpand(true);
        // old font was Arial with is no go for linux.
        setFont(new java.awt.Font("SansSerif", java.awt.Font.PLAIN, 13));
        setRowHeight(18);
    }
}