com.github.bordertech.wcomponents.examples.datatable.WDataTableContentExample Maven / Gradle / Ivy

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package com.github.bordertech.wcomponents.examples.datatable;

import com.github.bordertech.wcomponents.Image;
import com.github.bordertech.wcomponents.Request;
import com.github.bordertech.wcomponents.SimpleTableDataModel;
import com.github.bordertech.wcomponents.TableDataModel;
import com.github.bordertech.wcomponents.WDataTable;
import com.github.bordertech.wcomponents.WImage;
import com.github.bordertech.wcomponents.WPanel;
import com.github.bordertech.wcomponents.WTableColumn;
import com.github.bordertech.wcomponents.WText;
import com.github.bordertech.wcomponents.examples.DynamicImage;

/**
 * This example shows use of a {@link WDataTable}, with a two-dimensional array of data and rendering of dynamic content
 * using the WContentHelperServlet. The data will be held in the user's session.
 *
 * @author Yiannis Paschalidis
 * @since 1.0.0
 */
public class WDataTableContentExample extends WPanel {

	/**
	 * The table used in the example.
	 */
	private final WDataTable table;

	/**
	 * Creates a DataTableExample.
	 */
	public WDataTableContentExample() {
		table = new WDataTable();
		table.addColumn(new WTableColumn("Name (text)", new WText()));
		table.addColumn(new WTableColumn("Name (image)", new DynamicWImage()));
		add(table);
	}

	/**
	 * Override preparePaintComponent in order to set up the example data the first time that the example is accessed by
	 * each user.
	 *
	 * @param request the request being responded to.
	 */
	@Override
	protected void preparePaintComponent(final Request request) {
		if (!isInitialised()) {
			table.setDataModel(createTableModel());
			setInitialised(true);
		}
	}

	/**
	 * Creates a simple table data model containing some dummy data.
	 *
	 * @return a new data model.
	 */
	private TableDataModel createTableModel() {
		String[][] data = new String[][]{
			new String[]{"Row 1", "Row 1"},
			new String[]{"Row 2", "Row 2"},
			new String[]{"Row 3", "Row 3"}
		};

		return new SimpleTableDataModel(data);
	}

	/**
	 * A WImage implementation which displays a dynamic image depending on its bean value.
	 */
	private static final class DynamicWImage extends WImage {

		/**
		 * @return the image to be displayed.
		 */
		@Override
		public Image getImage() {
			return new DynamicImage(((String) getData()));
		}
	}

}