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1   package fr.ifremer.quadrige3.ui.swing.table.renderer;
2   
3   /*-
4    * #%L
5    * Quadrige3 Core :: Quadrige3 UI Common
6    * %%
7    * Copyright (C) 2017 Ifremer
8    * %%
9    * This program is free software: you can redistribute it and/or modify
10   * it under the terms of the GNU Affero General Public License as published by
11   * the Free Software Foundation, either version 3 of the License, or
12   * (at your option) any later version.
13   * 
14   * This program is distributed in the hope that it will be useful,
15   * but WITHOUT ANY WARRANTY; without even the implied warranty of
16   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17   * GNU General Public License for more details.
18   * 
19   * You should have received a copy of the GNU Affero General Public License
20   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
21   * #L%
22   */
23  
24  import fr.ifremer.quadrige3.ui.swing.table.AbstractRowUIModel;
25  import fr.ifremer.quadrige3.ui.swing.table.AbstractTableModel;
26  
27  import javax.swing.JTable;
28  import javax.swing.table.TableCellRenderer;
29  import java.awt.Component;
30  import java.util.Map;
31  import java.util.function.Predicate;
32  
33  /**
34   * @author peck7 on 24/10/2017.
35   */
36  public class PredicatedCellRenderer<R extends AbstractRowUIModel<?, ?>> implements TableCellRenderer {
37  
38      private final Map<Predicate<R>, TableCellRenderer> renderers;
39  
40      public PredicatedCellRenderer(Map<Predicate<R>, TableCellRenderer> renderers) {
41          this.renderers = renderers;
42      }
43  
44      @Override
45      @SuppressWarnings("unchecked")
46      public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
47  
48          R rowModel = ((AbstractTableModel<R>) table.getModel()).getEntry(table.convertRowIndexToModel(row));
49  
50          // execute predicates to find TableCellRenderer
51          for (Predicate<R> predicate : renderers.keySet()) {
52              if (predicate.test(rowModel)) {
53                  return renderers.get(predicate).getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
54              }
55          }
56  
57          // use default text renderer if predicate not found
58          return table.getDefaultRenderer(value == null ? String.class : value.getClass()).getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
59      }
60  }