DragSelectSample.java

package com.smartgwt.sample.showcase.client.grid.interaction;

import com.smartgwt.client.types.Alignment;
import com.smartgwt.client.types.ListGridFieldType;
import com.smartgwt.client.types.SelectionStyle;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.client.widgets.grid.ListGridField;
import com.smartgwt.client.widgets.grid.events.SelectionChangedHandler;
import com.smartgwt.client.widgets.grid.events.SelectionEvent;
import com.smartgwt.sample.showcase.client.PanelFactory;
import com.smartgwt.sample.showcase.client.ShowcasePanel;
import com.smartgwt.sample.showcase.client.data.CountrySampleData;

public class DragSelectSample extends ShowcasePanel {
    private static final String DESCRIPTION = "<p>Drag to select a range of rows. Alternatively a single row in the grid and then Shift-click to " +
            "select a continuous range of rows.</p><p>Ctrl-click to add or remove individual rows from the selection.</p>";

    public static class Factory implements PanelFactory {
        private String id;

        public ShowcasePanel create() {
            DragSelectSample panel = new DragSelectSample();
            id = panel.getID();
            return panel;
        }

        public String getID() {
            return id;
        }

        public String getDescription() {
            return DESCRIPTION;
        }
    }

    public Canvas getViewPanel() {

        Canvas canvas = new Canvas();

        final ListGrid selectedCountriesGrid = new ListGrid();
        selectedCountriesGrid.setWidth(250);
        selectedCountriesGrid.setHeight(100);
        selectedCountriesGrid.setTop(250);
        selectedCountriesGrid.setShowAllRecords(true);
        ListGridField selectedCountriesField = new ListGridField("countryName", "Selected Countries");
        selectedCountriesGrid.setFields(selectedCountriesField);

        final ListGrid countryGrid = new ListGrid();
        countryGrid.setWidth(500);
        countryGrid.setHeight(224);
        countryGrid.setShowAllRecords(true);
        countryGrid.setSelectionType(SelectionStyle.MULTIPLE);
        countryGrid.setCanDragSelect(true);

        ListGridField countryCodeField = new ListGridField("countryCode", "Flag", 40);
        countryCodeField.setAlign(Alignment.CENTER);
        countryCodeField.setType(ListGridFieldType.IMAGE);
        countryCodeField.setImageURLPrefix("flags/16/");
        countryCodeField.setImageURLSuffix(".png");

        ListGridField nameField = new ListGridField("countryName", "Country");
        ListGridField capitalField = new ListGridField("capital", "Capital");
        ListGridField continentField = new ListGridField("continent", "Continent");
        countryGrid.setFields(countryCodeField, nameField, capitalField, continentField);

        countryGrid.setData(CountrySampleData.getRecords());
        countryGrid.addSelectionChangedHandler(new SelectionChangedHandler() {
            public void onSelectionChanged(SelectionEvent event) {
                selectedCountriesGrid.setData(countryGrid.getSelection());
            }
        });

        canvas.addChild(countryGrid);
        canvas.addChild(selectedCountriesGrid);

        return canvas;
    }


    public String getIntro() {
        return DESCRIPTION;
    }

}