| /* |
| * Copyright 2002,2004 The Apache Software Foundation. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.commons.jelly.tags.swing.model; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import javax.swing.table.AbstractTableModel; |
| import javax.swing.table.DefaultTableColumnModel; |
| import javax.swing.table.TableColumnModel; |
| |
| import org.apache.commons.jelly.JellyContext; |
| |
| /** |
| * A Swing TableModel that uses a List of rows with pluggable Expressions |
| * to evaluate the value of the cells |
| * |
| * @author <a href="mailto:jstrachan@apache.org">James Strachan</a> |
| * @version $Revision: 1.7 $ |
| */ |
| public class ExpressionTableModel extends AbstractTableModel { |
| |
| private JellyContext context; |
| private List rows = new ArrayList(); |
| private MyTableColumnModel columnModel = new MyTableColumnModel(); |
| |
| public ExpressionTableModel() { |
| } |
| |
| /** |
| * Returns the column definitions. |
| * @return List |
| */ |
| public List getColumnList() { |
| return columnModel.getColumnList(); |
| } |
| |
| /** |
| * @return the TableColumnModel |
| */ |
| public TableColumnModel getColumnModel() { |
| return columnModel; |
| } |
| |
| /** |
| * Adds a new column definition to the table |
| */ |
| public void addColumn(ExpressionTableColumn column) { |
| columnModel.addColumn(column); |
| } |
| |
| /** |
| * Removes a column definition from the table |
| */ |
| public void removeColumn(ExpressionTableColumn column) { |
| columnModel.removeColumn(column); |
| } |
| |
| |
| // TableModel interface |
| //------------------------------------------------------------------------- |
| public int getRowCount() { |
| return rows.size(); |
| } |
| |
| public int getColumnCount() { |
| return columnModel.getColumnCount(); |
| } |
| |
| public String getColumnName(int columnIndex) { |
| String answer = null; |
| if (columnIndex < 0 || columnIndex >= columnModel.getColumnCount()) { |
| return answer; |
| } |
| Object value = columnModel.getColumn(columnIndex).getHeaderValue(); |
| if (value != null) { |
| return value.toString(); |
| } |
| return answer; |
| } |
| |
| public Object getValueAt(int rowIndex, int columnIndex) { |
| Object answer = null; |
| if (rowIndex < 0 || rowIndex >= rows.size()) { |
| return answer; |
| } |
| if (columnIndex < 0 || columnIndex >= columnModel.getColumnCount()) { |
| return answer; |
| } |
| Object row = rows.get(rowIndex);; |
| ExpressionTableColumn column = (ExpressionTableColumn) columnModel.getColumn(columnIndex); |
| if (row == null || column == null) { |
| return answer; |
| } |
| return column.evaluateValue(this, row, rowIndex, columnIndex); |
| } |
| |
| |
| // Properties |
| //------------------------------------------------------------------------- |
| |
| |
| /** |
| * Returns the list of rows. |
| * @return List |
| */ |
| public List getRows() { |
| return rows; |
| } |
| |
| /** |
| * Sets the list of rows. |
| * @param rows The rows to set |
| */ |
| public void setRows(List rows) { |
| this.rows = rows; |
| } |
| |
| /** |
| * Returns the context. |
| * @return JellyContext |
| */ |
| public JellyContext getContext() { |
| return context; |
| } |
| |
| /** |
| * Sets the context. |
| * @param context The context to set |
| */ |
| public void setContext(JellyContext context) { |
| this.context = context; |
| } |
| |
| // Implementation methods |
| //------------------------------------------------------------------------- |
| protected static class MyTableColumnModel extends DefaultTableColumnModel { |
| public List getColumnList() { |
| return tableColumns; |
| } |
| }; |
| |
| |
| } |