基于java的网页表格组件 GWT Advanced Table.zip

/** * AdvancedTable is GWT table widget that supports data paging, filtering * and column sorting. Paging, filtering and sorting are done by the server * side. The table uses a data provider, the class TableModelService. * * How to use it: * * AdvancedTable table = new AdvancedTable(); * TableModelServiceAsync someTableService = * <create table model service async>; * table.setTableModelService(usersTableService); * RootPanel.get().add(table); * * (c) 2007 by Svetlin Nakov - http://www.nakov.com * National Academy for Software Development - http://academy.devbg.org * This software is freeware. Use it at your own risk. */ package example.client; import java.util.ArrayList; import java.util.HashSet; import java.util.Set; import com.google.gwt.core.client.GWT; import com.google.gwt.user.client.DOM; import com.google.gwt.user.client.Element; import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.CheckBox; import com.google.gwt.user.client.ui.ClickListener; import com.google.gwt.user.client.ui.Composite; import com.google.gwt.user.client.ui.DockPanel; import com.google.gwt.user.client.ui.Grid; import com.google.gwt.user.client.ui.HasHorizontalAlignment; import com.google.gwt.user.client.ui.HasVerticalAlignment; import com.google.gwt.user.client.ui.HorizontalPanel; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.ScrollPanel; import com.google.gwt.user.client.ui.SourcesTableEvents; import com.google.gwt.user.client.ui.TableListener; import com.google.gwt.user.client.ui.Widget; import com.google.gwt.user.client.ui.HTMLTable.RowFormatter; public class AdvancedTable extends Composite { private static final int DEFAULT_PAGE_SIZE = 6; private static final String DEFAULT_TABLE_WIDTH = "430px"; private static final String DEFAULT_TABLE_HEIGHT = "210px"; private static final int NAVIGATION_PANEL_HEIGHT = 26; private static final int STATUS_INFO = 1001; private static final int STATUS_ERROR = 1002; private static final int STATUS_WAIT = 1003; private static final String SORT_ASC_SYMBOL = " \u25b2"; private static final String SORT_DESC_SYMBOL = " \u25bc"; private static final String MARK_COLUMN_TITLE = "\u00bb"; private static final int NO_ROW_SELECTED = -1; private static final String DEFAULT_ROW_STYLE = "advancedTableRow"; private static final String SELECTED_ROW_STYLE = "advancedTableSelectedRow"; private static final String NULL_DISPLAY_VALUE = "&nbsp;"; private ScrollPanel scrollPanelGrid; private HorizontalPanel navigationPanel; private final Grid grid; private final Label statusLabel; private final Button buttonFirstPage; private final Button buttonPrevPage; private final Button buttonNextPage; private final Button buttonLastPage; private ArrayList rowSelectionListeners; private int pageSize = DEFAULT_PAGE_SIZE; private boolean firstColumnVisible = true; private boolean allowRowMark = false; private TableModelServiceAsync tableModelService; private TableColumn[] columns; private DataFilter[] filters; private String[][] pageRows; private int totalRowsCount; private int currentPageRowsCount; private int currentPageStartRow; private int currentPageIndex; private String sortColumnName; private boolean sortOrder; private int selectedRowIndex; private Set markedRows = new HashSet(); public AdvancedTable() { super(); final DockPanel contentDockPanel = new DockPanel(); initWidget(contentDockPanel); contentDockPanel.setSize("100%", "100%"); this.setSize(DEFAULT_TABLE_WIDTH, DEFAULT_TABLE_HEIGHT); scrollPanelGrid = new ScrollPanel(); scrollPanelGrid.setSize("100%", "100%"); contentDockPanel.add(scrollPanelGrid, DockPanel.CENTER); contentDockPanel.setCellWidth(scrollPanelGrid, "100%"); contentDockPanel.setCellHeight(scrollPanelGrid, "100%"); grid = new Grid(); grid.setCellSpacing(0); grid.setBorderWidth(1); scrollPanelGrid.add(grid); grid.setSize("100%", "100%"); // Display a preview of the table (when not in browser mode) if (! GWT.isScript()) { grid.resize(DEFAULT_PAGE_SIZE+1, 3); grid.setText(0, 0, "Column 1"); grid.setText(0, 1, "Column 2"); grid.setText(0, 2, "Column 3"); } // Add event handler to perform sorting on header column click // and row selection on row click this.grid.addTableListener(new TableListener() { public void onCellClicked(SourcesTableEvents sender, int row, int column) { AdvancedTable.this.cellClicked(row, column); } }); navigationPanel = new HorizontalPanel(); contentDockPanel.add(navigationPanel, DockPanel.SOUTH); navigationPanel.setSize("100%", "26px"); contentDockPanel.setCellHeight(navigationPanel, "26px"); contentDockPanel.setCellWidth(navigationPanel, "100%"); contentDockPanel.setCellVerticalAlignment(navigationPanel, HasVerticalAlignment.ALIGN_BOTTOM); final Button buttonRefresh = new Button(); navigationPanel.add(buttonRefresh); navigationPanel.setCellHeight(buttonRefresh, "23px"); buttonRefresh.setSize("70", "23"); navigationPanel.setCellVerticalAlignment(buttonRefresh, HasVerticalAlignment.ALIGN_BOTTOM); buttonRefresh.addClickListener(new ClickListener() { public void onClick(Widget sender) { AdvancedTable.this.buttonRefreshClicked(); } }); buttonRefresh.setText("Refresh"); statusLabel = new Label(); navigationPanel.add(statusLabel); statusLabel.setHeight("20px"); navigationPanel.setCellHeight(statusLabel, "23px"); navigationPanel.setCellHorizontalAlignment( statusLabel, HasHorizontalAlignment.ALIGN_RIGHT); navigationPanel.setCellVerticalAlignment( statusLabel, HasVerticalAlignment.ALIGN_BOTTOM); showStatus("Table model service not available.", STATUS_ERROR); buttonFirstPage = new Button(); navigationPanel.add(buttonFirstPage); navigationPanel.setCellHeight(buttonFirstPage, "23px"); buttonFirstPage.setSize("25", "23"); navigationPanel.setCellVerticalAlignment(buttonFirstPage, HasVerticalAlignment.ALIGN_BOTTOM); buttonFirstPage.addClickListener(new ClickListener() { public void onClick(Widget sender) { AdvancedTable.this.buttonFirstPageClicked(); } }); navigationPanel.setCellHorizontalAlignment( buttonFirstPage, HasHorizontalAlignment.ALIGN_RIGHT); navigationPanel.setCellWidth(buttonFirstPage, "30px"); buttonFirstPage.setText("<<"); buttonPrevPage = new Button(); navigationPanel.add(buttonPrevPage); navigationPanel.setCellHeight(buttonPrevPage, "23px"); buttonPrevPage.setSize("20", "23"); navigationPanel.setCellVerticalAlignment(buttonPrevPage, HasVerticalAlignment.ALIGN_BOTTOM); buttonPrevPage.addClickListener(new ClickListener() { public void onClick(Widget sender) { AdvancedTable.this.buttonPrevPageClicked(); } }); navigationPanel.setCellHorizontalAlignment( buttonPrevPage, HasHorizontalAlignment.ALIGN_RIGHT); navigationPanel.setCellWidth(buttonPrevPage, "23px"); buttonPrevPage.setText("<"); buttonNextPage = new Button(); navigationPanel.add(buttonNextPage); navigationPanel.setCellHeight(buttonNextPage, "23px"); buttonNextPage.setSize("20", "23"); navigationPanel.setCellVerticalAlignment(buttonNextPage, HasVerticalAlignment.ALIGN_BOTTOM); buttonNextPage.addClickListener(new ClickListener() { public void onClick(Widget sender) { AdvancedTable.this.buttonNextPageClicked(); } }); navigationPanel.setCellHorizontalAlignment( buttonNextPage, HasHorizontalAlignment.ALIGN_RIGHT); navigationPanel.setCellWidth(buttonNextPage, "23px"); buttonNextPage.setText(">"); buttonLastPage = new Button(); navigationPanel.add(buttonLastPage); navigationPanel.setCellHeight(buttonLastPage