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 * Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */
package com.sun.javafx.scene.control;

import javafx.beans.value.ObservableValue;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableColumn.SortType;
import javafx.scene.control.TableColumnBase;
import javafx.scene.control.TreeTableColumn;

Convenience class for dealing with sort types on TableColumn and TreeTableColumn,
although note that this will only work whilst TableColumn.SortType is
equivalent to TreeTableColumn.SortType. Once they diverge this code will need
to be replaced.
/**
 * Convenience class for dealing with sort types on TableColumn and TreeTableColumn,
 * although note that this will only work whilst TableColumn.SortType is
 * equivalent to TreeTableColumn.SortType. Once they diverge this code will need
 * to be replaced.
 */
public class TableColumnSortTypeWrapper {

    public static boolean isAscending(TableColumnBase<?, ?> column) {
        String sortTypeName = getSortTypeName(column);
        return "ASCENDING".equals(sortTypeName);
    }

    public static boolean isDescending(TableColumnBase<?, ?> column) {
        String sortTypeName = getSortTypeName(column);
        return "DESCENDING".equals(sortTypeName);
    }

    public static void setSortType(TableColumnBase<?,?> column, SortType sortType) {
        if (column instanceof TableColumn) {
            TableColumn tc = (TableColumn) column;
            tc.setSortType(sortType);
        } else if (column instanceof TreeTableColumn) {
            TreeTableColumn tc = (TreeTableColumn) column;
            if (sortType == SortType.ASCENDING) {
                tc.setSortType(javafx.scene.control.TreeTableColumn.SortType.ASCENDING);
            } else if (sortType == SortType.DESCENDING) {
                tc.setSortType(javafx.scene.control.TreeTableColumn.SortType.DESCENDING);
            } else if (sortType == null) {
                tc.setSortType(null);
            }
        }
    }

    public static String getSortTypeName(TableColumnBase<?,?> column) {
        if (column instanceof TableColumn) {
            TableColumn tc = (TableColumn) column;
            TableColumn.SortType st = tc.getSortType();
            return st == null ? null : st.name();
        } else if (column instanceof TreeTableColumn) {
            TreeTableColumn tc = (TreeTableColumn) column;
            TreeTableColumn.SortType st = tc.getSortType();
            return st == null ? null : st.name();
        }
        return null;
    }

    public static ObservableValue getSortTypeProperty(TableColumnBase<?,?> column) {
        if (column instanceof TableColumn) {
            return ((TableColumn) column).sortTypeProperty();
        } else if (column instanceof TreeTableColumn) {
            return ((TreeTableColumn) column).sortTypeProperty();
        }
        return null;
    }

}