helpers.GridFunctions.java Source code

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Here is the source code for helpers.GridFunctions.java

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/*******************************************************************************
 * QBiC Project qNavigator enables users to manage their projects. Copyright (C) "2016?
 * Christopher Mohr, David Wojnar, Andreas Friedrich
 * 
 * This program is free software: you can redistribute it and/or modify it under the terms of the
 * GNU General Public License as published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program 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 for more details.
 * 
 * You should have received a copy of the GNU General Public License along with this program. If
 * not, see <http://www.gnu.org/licenses/>.
 *******************************************************************************/
package helpers;

import com.vaadin.data.Container.Filter;
import com.vaadin.data.util.GeneratedPropertyContainer;
import com.vaadin.data.util.filter.SimpleStringFilter;
import com.vaadin.event.FieldEvents.TextChangeEvent;
import com.vaadin.event.FieldEvents.TextChangeListener;
import com.vaadin.ui.Grid;
import com.vaadin.ui.Grid.HeaderCell;
import com.vaadin.ui.Grid.HeaderRow;
import com.vaadin.ui.TextField;

public class GridFunctions {
    // Set up a filter for all columns

    public static void addColumnFilters(Grid grid, final GeneratedPropertyContainer gpcBio) {
        HeaderRow filterRow = grid.appendHeaderRow();

        for (final Object pid : grid.getContainerDataSource().getContainerPropertyIds()) {
            HeaderCell cell = filterRow.getCell(pid);

            // Have an input field to use for filter
            final TextField filterField = new TextField();
            filterField.setWidth("100%");

            // filterField.setColumns(8);

            // Update filter When the filter input is changed
            filterField.addTextChangeListener(new TextChangeListener() {

                /**
                 * 
                 */
                private static final long serialVersionUID = 7670817216478146116L;
                Filter currentFilter = null;

                @Override
                public void textChange(TextChangeEvent event) {
                    if (currentFilter != null) {
                        gpcBio.removeContainerFilter(currentFilter);
                        currentFilter = null;
                    }

                    if (!event.getText().isEmpty()) {
                        currentFilter = new SimpleStringFilter(pid, event.getText(), true, false);
                        gpcBio.addContainerFilter(currentFilter);
                    }
                    // (Re)create the filter if necessary
                    // if (!filterField.getValue().equals("")) {
                    // currentFilter = new SimpleStringFilter(pid, filterField.getValue(), true, false);
                    // gpcBio.addContainerFilter(currentFilter);
                    // }

                }
            });
            cell.setComponent(filterField);
        }
    }
}