001// License: GPL. For details, see LICENSE file. 002package org.openstreetmap.josm.gui.history; 003 004import java.awt.Color; 005import java.awt.Component; 006 007import javax.swing.JLabel; 008import javax.swing.JTable; 009import javax.swing.UIManager; 010import javax.swing.table.TableCellRenderer; 011 012import org.openstreetmap.josm.gui.util.GuiHelper; 013 014/** 015 * The {@link TableCellRenderer} for a list of tags in {@link HistoryBrowser} 016 * 017 */ 018public class TagTableCellRenderer extends JLabel implements TableCellRenderer { 019 public static final Color BGCOLOR_SELECTED = new Color(143, 170, 255); 020 021 /** 022 * Constructs a new {@code TagTableCellRenderer}. 023 */ 024 public TagTableCellRenderer() { 025 setOpaque(true); 026 } 027 028 protected void setBackgroundReadable(String key, HistoryBrowserModel.TagTableModel model, boolean isSelected, boolean isValue) { 029 Color bgColor = UIManager.getColor("Table.background"); 030 if (!model.hasTag(key) && model.isCurrentPointInTime() 031 || !model.oppositeHasTag(key) && model.isReferencePointInTime()) { 032 bgColor = TwoColumnDiff.Item.DiffItemType.DELETED.getColor(); 033 } else if (!model.oppositeHasTag(key) && model.isCurrentPointInTime() 034 || !model.hasTag(key) && model.isReferencePointInTime()) { 035 bgColor = TwoColumnDiff.Item.DiffItemType.INSERTED.getColor(); 036 } else if (isValue && model.hasTag(key) && model.oppositeHasTag(key) && !model.hasSameValueAsOpposite(key)) { 037 bgColor = TwoColumnDiff.Item.DiffItemType.CHANGED.getColor(); 038 } 039 if (isSelected) { 040 bgColor = BGCOLOR_SELECTED; 041 } 042 043 GuiHelper.setBackgroundReadable(this, bgColor); 044 } 045 046 @Override 047 public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, 048 int row, int column) { 049 050 if (value == null) 051 return this; 052 053 String key = (String) value; 054 HistoryBrowserModel.TagTableModel model = getTagTableModel(table); 055 056 switch(column) { 057 case 0: 058 // the name column 059 setText(model.hasTag(key) ? key : ""); 060 setToolTipText(getText()); 061 setBackgroundReadable(key, model, isSelected, false); 062 break; 063 case 1: 064 // the value column 065 setText(model.hasTag(key) ? model.getValue(key) : ""); 066 setToolTipText(getText()); 067 setBackgroundReadable(key, model, isSelected, true); 068 break; 069 } 070 071 return this; 072 } 073 074 protected HistoryBrowserModel.TagTableModel getTagTableModel(JTable table) { 075 return (HistoryBrowserModel.TagTableModel) table.getModel(); 076 } 077}