001 /*
002 GRANITE DATA SERVICES
003 Copyright (C) 2012 GRANITE DATA SERVICES S.A.S.
004
005 This file is part of Granite Data Services.
006
007 Granite Data Services is free software; you can redistribute it and/or modify
008 it under the terms of the GNU Library General Public License as published by
009 the Free Software Foundation; either version 2 of the License, or (at your
010 option) any later version.
011
012 Granite Data Services is distributed in the hope that it will be useful, but
013 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015 for more details.
016
017 You should have received a copy of the GNU Library General Public License
018 along with this library; if not, see <http://www.gnu.org/licenses/>.
019 */
020
021 package org.granite.client.tide.collections.javafx;
022
023 import org.granite.tide.data.model.SortInfo;
024
025 import javafx.beans.property.ReadOnlyProperty;
026 import javafx.beans.value.ObservableValue;
027 import javafx.scene.control.TableColumn;
028 import javafx.scene.control.TableColumn.SortType;
029 import javafx.scene.control.TableView;
030
031 /**
032 * @author William DRAI
033 */
034 public class TableViewSortAdapter<S> implements SortAdapter {
035
036 private TableView<S> tableView;
037 private S exampleData;
038
039 public TableViewSortAdapter(final TableView<S> tableView, final Class<S> exampleDataClass) {
040 this.tableView = tableView;
041 try {
042 this.exampleData = exampleDataClass.newInstance();
043 }
044 catch (Exception e) {
045 throw new RuntimeException("Could not instantiate example data class " + exampleDataClass, e);
046 }
047 }
048
049 public void apply(SortInfo sortInfo) {
050 String[] order = sortInfo.getOrder();
051 boolean[] desc = sortInfo.getDesc();
052
053 if (order != null && desc != null) {
054 // Apply current sort to attached TableView
055 tableView.getSortOrder().clear();
056 for (int i = 0; i < order.length; i++) {
057 for (TableColumn<S, ?> column : tableView.getColumns()) {
058 ObservableValue<?> property = column.getCellObservableValue(exampleData);
059 if (property instanceof ReadOnlyProperty<?> && ((ReadOnlyProperty<?>)property).getName().equals(order[i])) {
060 tableView.getSortOrder().add(column);
061 column.setSortType(desc[i] ? SortType.DESCENDING : SortType.ASCENDING);
062 }
063 }
064 }
065 }
066 }
067
068 public void retrieve(SortInfo sortInfo) {
069 int i = 0;
070 String[] order = new String[tableView.getSortOrder().size()];
071 boolean[] desc = new boolean[tableView.getSortOrder().size()];
072 for (TableColumn<S, ?> column : tableView.getSortOrder()) {
073 ObservableValue<?> property = column.getCellObservableValue(exampleData);
074 if (property instanceof ReadOnlyProperty<?>) {
075 order[i] = ((ReadOnlyProperty<?>)property).getName();
076 desc[i] = column.getSortType() == SortType.DESCENDING;
077 i++;
078 }
079 else
080 throw new IllegalArgumentException("Sortable cell values must implement Property to apply TableViewSort adapter");
081 }
082 sortInfo.setOrder(order.length > 0 ? order : null);
083 sortInfo.setDesc(desc.length > 0 ? desc : null);
084 }
085 }