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