001    // License: GPL. For details, see LICENSE file.
002    package org.openstreetmap.josm.gui.dialogs.relation;
003    
004    import java.awt.Color;
005    import java.awt.Component;
006    
007    import javax.swing.JLabel;
008    import javax.swing.JTable;
009    import javax.swing.UIManager;
010    import javax.swing.table.TableCellRenderer;
011    
012    import org.openstreetmap.josm.data.osm.OsmPrimitive;
013    
014    /**
015     * This is the {@link TableCellRenderer} used in the tables of {@link RelationMemberMerger}.
016     *
017     */
018    public abstract class MemberTableCellRenderer extends JLabel implements TableCellRenderer {
019        public final static Color BGCOLOR_EMPTY_ROW = new Color(234, 234, 234);
020        public final static Color BGCOLOR_IN_JOSM_SELECTION = new Color(235,255,177);
021    
022        public final static Color BGCOLOR_NOT_IN_OPPOSITE = new Color(255, 197, 197);
023        public final static Color BGCOLOR_DOUBLE_ENTRY = new Color(254,226,214);
024    
025        /**
026         * constructor
027         */
028        public MemberTableCellRenderer() {
029            setIcon(null);
030            setOpaque(true);
031        }
032    
033        /**
034         * reset the renderer
035         */
036        protected void reset() {
037            setBackground(UIManager.getColor("Table.background"));
038            setForeground(UIManager.getColor("Table.foreground"));
039            setBorder(null);
040            setIcon(null);
041            setToolTipText(null);
042        }
043    
044        protected void renderBackground(MemberTableModel model, OsmPrimitive primitive, boolean isSelected) {
045            Color bgc = UIManager.getColor("Table.background");
046            if (isSelected) {
047                bgc = UIManager.getColor("Table.selectionBackground");
048            } else if (primitive != null && model.isInJosmSelection(primitive)) {
049                bgc = BGCOLOR_IN_JOSM_SELECTION;
050            } else if (primitive != null && model.getNumMembersWithPrimitive(primitive) > 1) {
051                bgc = BGCOLOR_DOUBLE_ENTRY;
052            }
053            setBackground(bgc);
054        }
055    
056        protected void renderForeground(boolean isSelected) {
057            Color fgc;
058            if (isSelected) {
059                fgc = UIManager.getColor("Table.selectionForeground");
060            } else {
061                fgc = UIManager.getColor("Table.foreground");
062            }
063            setForeground(fgc);
064        }
065    
066        abstract public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
067                boolean hasFocus, int row, int column);
068    
069        /**
070         * replies the model
071         * @param table the table
072         * @return the table model
073         */
074        protected MemberTableModel getModel(JTable table) {
075            return (MemberTableModel) table.getModel();
076        }
077    }