Java tutorial
package org.sigmah.client.ui.widget.orgunit; /* * #%L * Sigmah * %% * Copyright (C) 2010 - 2016 URD * %% * 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/gpl-3.0.html>. * #L% */ import java.util.ArrayList; import java.util.List; import org.sigmah.client.i18n.I18N; import org.sigmah.client.ui.res.icon.IconImageBundle; import org.sigmah.client.ui.res.icon.orgunit.OrgUnitImageBundle; import org.sigmah.client.ui.widget.HasTreeGrid; import org.sigmah.client.util.TreeGridCheckboxSelectionModel; import org.sigmah.shared.dto.country.CountryDTO; import org.sigmah.shared.dto.orgunit.OrgUnitDTO; import com.extjs.gxt.ui.client.Style.HorizontalAlignment; import com.extjs.gxt.ui.client.Style.SortDir; import com.extjs.gxt.ui.client.data.ModelData; import com.extjs.gxt.ui.client.data.SortInfo; import com.extjs.gxt.ui.client.event.ButtonEvent; import com.extjs.gxt.ui.client.event.SelectionListener; import com.extjs.gxt.ui.client.store.ListStore; import com.extjs.gxt.ui.client.store.Store; import com.extjs.gxt.ui.client.store.StoreSorter; import com.extjs.gxt.ui.client.store.TreeStore; import com.extjs.gxt.ui.client.widget.button.Button; import com.extjs.gxt.ui.client.widget.grid.ColumnConfig; import com.extjs.gxt.ui.client.widget.grid.ColumnData; import com.extjs.gxt.ui.client.widget.grid.ColumnModel; import com.extjs.gxt.ui.client.widget.grid.Grid; import com.extjs.gxt.ui.client.widget.grid.GridCellRenderer; import com.extjs.gxt.ui.client.widget.grid.filters.GridFilters; import com.extjs.gxt.ui.client.widget.grid.filters.StringFilter; import com.extjs.gxt.ui.client.widget.toolbar.SeparatorToolItem; import com.extjs.gxt.ui.client.widget.toolbar.ToolBar; import com.extjs.gxt.ui.client.widget.treegrid.TreeGrid; import com.extjs.gxt.ui.client.widget.treegrid.TreeGridCellRenderer; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; /** * <p> * Widget representing the organizational chart (tree) of an org unit. * </p> * <p> * To handle component events, see {@link #setTreeGridEventHandler(TreeGridEventHandler)}. * </p> * * @author tmi * @author Denis Colliot (dcolliot@ideia.fr) */ public class OrgUnitTreeGrid implements HasTreeGrid<OrgUnitDTO> { // CSS style names. private static final String STYLE_FLEXIBILITY_ACTION = "flexibility-action"; /** * The tree grid. */ private final TreeGrid<OrgUnitDTO> tree; /** * The actions toolbar. */ private final ToolBar toolbar; /** * The grid events handler implementation. */ private HasTreeGrid.TreeGridEventHandler<OrgUnitDTO> eventsHandler; /** * The selection model (can be {@code null} if the tree doesn't manage a selection model). */ private TreeGridCheckboxSelectionModel<OrgUnitDTO> selectionModel; /** * Initializes a new {@code OrgUnitTreeGrid} widget. * * @param hasSelectionModel * {@code true} if the tree grid widget manages a selection model, {@code false} if it does not. */ public OrgUnitTreeGrid(final boolean hasSelectionModel) { // -- // Creates columns. // -- final List<ColumnConfig> columns = new ArrayList<ColumnConfig>(); // Name column. final ColumnConfig nameColumn = new ColumnConfig(); nameColumn.setId(OrgUnitDTO.NAME); nameColumn.setHeaderText(I18N.CONSTANTS.projectName()); nameColumn.setRenderer(new TreeGridCellRenderer<OrgUnitDTO>()); nameColumn.setWidth(150); // Full Name column. final ColumnConfig fullNameColumn = new ColumnConfig(); fullNameColumn.setId(OrgUnitDTO.FULL_NAME); fullNameColumn.setHeaderText(I18N.CONSTANTS.projectFullName()); fullNameColumn.setWidth(250); fullNameColumn.setRenderer(new GridCellRenderer<OrgUnitDTO>() { @Override public Object render(final OrgUnitDTO model, final String property, final ColumnData config, final int rowIndex, final int colIndex, final ListStore<OrgUnitDTO> store, final Grid<OrgUnitDTO> grid) { final com.google.gwt.user.client.ui.Label visitButton = new com.google.gwt.user.client.ui.Label( (String) model.get(property)); visitButton.addStyleName(STYLE_FLEXIBILITY_ACTION); visitButton.addClickHandler(new ClickHandler() { @Override public void onClick(final ClickEvent event) { if (eventsHandler != null) { eventsHandler.onRowClickEvent(model); } } }); return visitButton; } }); // Country column. final ColumnConfig countryColumn = new ColumnConfig(); countryColumn.setId(OrgUnitDTO.OFFICE_LOCATION_COUNTRY); countryColumn.setHeaderText(I18N.CONSTANTS.projectCountry()); countryColumn.setWidth(100); countryColumn.setRenderer(new GridCellRenderer<OrgUnitDTO>() { @Override public Object render(final OrgUnitDTO model, final String property, final ColumnData config, final int rowIndex, final int colIndex, final ListStore<OrgUnitDTO> store, final Grid<OrgUnitDTO> grid) { final CountryDTO country = (CountryDTO) model.get(property); return CountryDTO.toString(country); } }); // Adds columns. if (hasSelectionModel) { // Tree selection model selectionModel = new TreeGridCheckboxSelectionModel<OrgUnitDTO>(); columns.add(selectionModel.getColumn()); } columns.add(nameColumn); columns.add(fullNameColumn); columns.add(countryColumn); // -- // Tree store. // -- final TreeStore<OrgUnitDTO> store = new TreeStore<OrgUnitDTO>(); store.setSortInfo(new SortInfo(OrgUnitDTO.NAME, SortDir.ASC)); store.setStoreSorter(new StoreSorter<OrgUnitDTO>() { @Override public int compare(final Store<OrgUnitDTO> store, final OrgUnitDTO m1, final OrgUnitDTO m2, final String property) { if (OrgUnitDTO.OFFICE_LOCATION_COUNTRY.equals(property)) { return ((CountryDTO) m1.get(property)).getName() .compareToIgnoreCase(((CountryDTO) m2.get(property)).getName()); } else { return super.compare(store, m1, m2, property); } } }); // -- // Tree grid. // -- tree = new TreeGrid<OrgUnitDTO>(store, new ColumnModel(columns)); tree.setBorders(true); tree.getStyle().setLeafIcon(OrgUnitImageBundle.ICONS.orgUnitSmall()); tree.getStyle().setNodeCloseIcon(OrgUnitImageBundle.ICONS.orgUnitSmall()); tree.getStyle().setNodeOpenIcon(OrgUnitImageBundle.ICONS.orgUnitSmallTransparent()); tree.setTrackMouseOver(false); tree.addPlugin(createOrgUnitFilters()); if (hasSelectionModel) { tree.setSelectionModel(selectionModel); tree.addPlugin(selectionModel); } // -- // Expand all button. // -- final Button expandButton = new Button(I18N.CONSTANTS.expandAll(), IconImageBundle.ICONS.expand(), new SelectionListener<ButtonEvent>() { @Override public void componentSelected(final ButtonEvent ce) { tree.expandAll(); } }); // -- // Collapse all button. // -- final Button collapseButton = new Button(I18N.CONSTANTS.collapseAll(), IconImageBundle.ICONS.collapse(), new SelectionListener<ButtonEvent>() { @Override public void componentSelected(final ButtonEvent ce) { tree.collapseAll(); } }); // -- // Toolbar. // -- toolbar = new ToolBar(); toolbar.setAlignment(HorizontalAlignment.LEFT); toolbar.add(expandButton); toolbar.add(collapseButton); } /** * Creates filters for OrgUnits tree grid widget. * * @return The {@link GridFilters} instance. */ private static GridFilters createOrgUnitFilters() { final GridFilters filters = new GridFilters(); filters.setLocal(true); // Data index of each filter should be identical with column id in ColumnModel of TreeGrid filters.addFilter(new StringFilter(OrgUnitDTO.NAME)); filters.addFilter(new StringFilter(OrgUnitDTO.FULL_NAME)); filters.addFilter(new StringFilter(OrgUnitDTO.OFFICE_LOCATION_COUNTRY) { @Override @SuppressWarnings("unchecked") protected <X> X getModelValue(final ModelData model) { final CountryDTO country = (CountryDTO) super.getModelValue(model); return (X) CountryDTO.toString(country); } }); return filters; } /** * {@inheritDoc} */ @Override public TreeGrid<OrgUnitDTO> getTreeGrid() { return tree; } /** * {@inheritDoc} */ @Override public TreeStore<OrgUnitDTO> getStore() { return tree.getTreeStore(); } /** * {@inheritDoc} */ @Override public void setTreeGridEventHandler(final HasTreeGrid.TreeGridEventHandler<OrgUnitDTO> handler) { this.eventsHandler = handler; } public ToolBar getToolbar() { return toolbar; } public void addToolbarButton(final Button button) { if (button == null) { return; } toolbar.add(new SeparatorToolItem()); toolbar.add(button); } }