001// License: GPL. For details, see LICENSE file. 002package org.openstreetmap.josm.gui.dialogs.properties; 003 004import static org.openstreetmap.josm.tools.I18n.marktr; 005import static org.openstreetmap.josm.tools.I18n.tr; 006import static org.openstreetmap.josm.tools.I18n.trn; 007 008import java.awt.Color; 009import java.awt.Component; 010import java.awt.Font; 011import java.util.Collection; 012import java.util.Map; 013import java.util.Objects; 014import java.util.concurrent.CopyOnWriteArrayList; 015 016import javax.swing.JLabel; 017import javax.swing.JTable; 018import javax.swing.UIDefaults; 019import javax.swing.UIManager; 020import javax.swing.table.DefaultTableCellRenderer; 021import javax.swing.table.TableCellRenderer; 022 023import org.openstreetmap.josm.data.osm.OsmPrimitive; 024import org.openstreetmap.josm.data.preferences.BooleanProperty; 025import org.openstreetmap.josm.data.preferences.CachingProperty; 026import org.openstreetmap.josm.data.preferences.ColorProperty; 027 028/** 029 * Cell renderer of tags table. 030 * @since 6314 031 */ 032public class PropertiesCellRenderer extends DefaultTableCellRenderer { 033 034 private static final CachingProperty<Color> SELECTED_FG 035 = new ColorProperty(marktr("Discardable key: selection Foreground"), Color.GRAY).cached(); 036 private static final CachingProperty<Color> SELECTED_BG; 037 private static final CachingProperty<Color> NORMAL_FG 038 = new ColorProperty(marktr("Discardable key: foreground"), Color.GRAY).cached(); 039 private static final CachingProperty<Color> NORMAL_BG; 040 private static final CachingProperty<Boolean> DISCARDABLE 041 = new BooleanProperty("display.discardable-keys", false).cached(); 042 043 static { 044 UIDefaults defaults = UIManager.getDefaults(); 045 SELECTED_BG = new ColorProperty(marktr("Discardable key: selection Background"), 046 defaults.getColor("Table.selectionBackground")).cached(); 047 NORMAL_BG = new ColorProperty(marktr("Discardable key: background"), 048 defaults.getColor("Table.background")).cached(); 049 } 050 051 private final Collection<TableCellRenderer> customRenderer = new CopyOnWriteArrayList<>(); 052 053 private static void setColors(Component c, String key, boolean isSelected) { 054 055 if (OsmPrimitive.getDiscardableKeys().contains(key)) { 056 c.setForeground((isSelected ? SELECTED_FG : NORMAL_FG).get()); 057 c.setBackground((isSelected ? SELECTED_BG : NORMAL_BG).get()); 058 } else { 059 UIDefaults defaults = UIManager.getDefaults(); 060 c.setForeground(defaults.getColor("Table."+(isSelected ? "selectionF" : "f")+"oreground")); 061 c.setBackground(defaults.getColor("Table."+(isSelected ? "selectionB" : "b")+"ackground")); 062 } 063 } 064 065 @Override 066 public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { 067 for (TableCellRenderer renderer : customRenderer) { 068 final Component component = renderer.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column); 069 if (component != null) { 070 return component; 071 } 072 } 073 if (value == null) 074 return this; 075 Component c = super.getTableCellRendererComponent(table, value, isSelected, false, row, column); 076 if (c instanceof JLabel) { 077 String str = null; 078 if (value instanceof String) { 079 str = (String) value; 080 } else if (value instanceof Map<?, ?>) { 081 Map<?, ?> v = (Map<?, ?>) value; 082 if (v.size() != 1) { // Multiple values: give user a short summary of the values 083 Integer blankCount; 084 Integer otherCount; 085 if (v.get("") == null) { 086 blankCount = 0; 087 otherCount = v.size(); 088 } else { 089 blankCount = (Integer) v.get(""); 090 otherCount = v.size()-1; 091 } 092 StringBuilder sb = new StringBuilder("<"); 093 if (otherCount == 1) { 094 // Find the non-blank value in the map 095 v.entrySet().stream().filter(entry -> !Objects.equals(entry.getKey(), "")) 096 /* I18n: properties display partial string joined with comma, first is count, second is value */ 097 .findAny().ifPresent(entry -> sb.append(tr("{0} ''{1}''", entry.getValue().toString(), entry.getKey()))); 098 } else { 099 /* I18n: properties display partial string joined with comma */ 100 sb.append(trn("{0} different", "{0} different", otherCount, otherCount)); 101 } 102 if (blankCount > 0) { 103 /* I18n: properties display partial string joined with comma */ 104 sb.append(trn(", {0} unset", ", {0} unset", blankCount, blankCount)); 105 } 106 sb.append('>'); 107 str = sb.toString(); 108 c.setFont(c.getFont().deriveFont(Font.ITALIC)); 109 110 } else { // One value: display the value 111 final Map.Entry<?, ?> entry = v.entrySet().iterator().next(); 112 str = (String) entry.getKey(); 113 } 114 } 115 ((JLabel) c).putClientProperty("html.disable", Boolean.TRUE); // Fix #8730 116 ((JLabel) c).setText(str); 117 if (DISCARDABLE.get()) { 118 String key = null; 119 if (column == 0) { 120 key = str; 121 } else if (column == 1) { 122 Object value0 = table.getModel().getValueAt(row, 0); 123 if (value0 instanceof String) { 124 key = (String) value0; 125 } 126 } 127 setColors(c, key, isSelected); 128 } 129 } 130 return c; 131 } 132 133 /** 134 * Adds a custom table cell renderer to render cells of the tags table. 135 * 136 * If the renderer is not capable performing a {@link TableCellRenderer#getTableCellRendererComponent}, 137 * it should return {@code null} to fall back to the 138 * {@link PropertiesCellRenderer#getTableCellRendererComponent default implementation}. 139 * @param renderer the renderer to add 140 * @since 9149 141 */ 142 public void addCustomRenderer(TableCellRenderer renderer) { 143 customRenderer.add(renderer); 144 } 145 146 /** 147 * Removes a custom table cell renderer. 148 * @param renderer the renderer to remove 149 * @since 9149 150 */ 151 public void removeCustomRenderer(TableCellRenderer renderer) { 152 customRenderer.remove(renderer); 153 } 154}