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| 1 | /* | ||
| 2 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | package sun.swing.table; | ||
| 26 | |||
| 27 | import sun.swing.DefaultLookup; | ||
| 28 | |||
| 29 | import java.awt.Component; | ||
| 30 | import java.awt.Color; | ||
| 31 | import java.awt.FontMetrics; | ||
| 32 | import java.awt.Graphics; | ||
| 33 | import java.awt.Insets; | ||
| 34 | import java.awt.Point; | ||
| 35 | import java.awt.Rectangle; | ||
| 36 | import java.io.Serializable; | ||
| 37 | import javax.swing.*; | ||
| 38 | import javax.swing.plaf.UIResource; | ||
| 39 | import javax.swing.border.Border; | ||
| 40 | import javax.swing.table.*; | ||
| 41 | |||
| 42 | public class DefaultTableCellHeaderRenderer extends DefaultTableCellRenderer | ||
| 43 | implements UIResource { | ||
| 44 | private boolean horizontalTextPositionSet; | ||
| 45 | private Icon sortArrow; | ||
| 46 | private EmptyIcon emptyIcon = new EmptyIcon(); | ||
| 47 | |||
| 48 | public DefaultTableCellHeaderRenderer() { | ||
| 49 | setHorizontalAlignment(JLabel.CENTER); | ||
| 50 | } | ||
| 51 | |||
| 52 | public void setHorizontalTextPosition(int textPosition) { | ||
| 53 | horizontalTextPositionSet = true; | ||
| 54 | super.setHorizontalTextPosition(textPosition); | ||
| 55 | } | ||
| 56 | |||
| 57 | public Component getTableCellRendererComponent(JTable table, Object value, | ||
| 58 | boolean isSelected, boolean hasFocus, int row, int column) { | ||
| 59 | Icon sortIcon = null; | ||
| 60 | |||
| 61 | boolean isPaintingForPrint = false; | ||
| 62 | |||
| 63 | if (table != null) { | ||
| 64 | JTableHeader header = table.getTableHeader(); | ||
| 65 | if (header != null) { | ||
| 66 | Color fgColor = null; | ||
| 67 | Color bgColor = null; | ||
| 68 | if (hasFocus) { | ||
| 69 | fgColor = DefaultLookup.getColor(this, ui, "TableHeader.focusCellForeground"); | ||
| 70 | bgColor = DefaultLookup.getColor(this, ui, "TableHeader.focusCellBackground"); | ||
| 71 | } | ||
| 72 | if (fgColor == null) { | ||
| 73 | fgColor = header.getForeground(); | ||
| 74 | } | ||
| 75 | if (bgColor == null) { | ||
| 76 | bgColor = header.getBackground(); | ||
| 77 | } | ||
| 78 | setForeground(fgColor); | ||
| 79 | setBackground(bgColor); | ||
| 80 | |||
| 81 | setFont(header.getFont()); | ||
| 82 | |||
| 83 | isPaintingForPrint = header.isPaintingForPrint(); | ||
| 84 | } | ||
| 85 | |||
| 86 | if (!isPaintingForPrint && table.getRowSorter() != null) { | ||
| 87 | if (!horizontalTextPositionSet) { | ||
| 88 | // There is a row sorter, and the developer hasn't | ||
| 89 | // set a text position, change to leading. | ||
| 90 | setHorizontalTextPosition(JLabel.LEADING); | ||
| 91 | } | ||
| 92 | SortOrder sortOrder = getColumnSortOrder(table, column); | ||
| 93 | if (sortOrder != null) { | ||
| 94 | switch(sortOrder) { | ||
| 95 | case ASCENDING: | ||
| 96 | sortIcon = DefaultLookup.getIcon( | ||
| 97 | this, ui, "Table.ascendingSortIcon"); | ||
| 98 | break; | ||
| 99 | case DESCENDING: | ||
| 100 | sortIcon = DefaultLookup.getIcon( | ||
| 101 | this, ui, "Table.descendingSortIcon"); | ||
| 102 | break; | ||
| 103 | case UNSORTED: | ||
| 104 | sortIcon = DefaultLookup.getIcon( | ||
| 105 | this, ui, "Table.naturalSortIcon"); | ||
| 106 | break; | ||
| 107 | } | ||
| 108 | } | ||
| 109 | } | ||
| 110 | } | ||
| 111 | |||
| 112 | setText(value == null ? "" : value.toString()); | ||
| 113 | setIcon(sortIcon); | ||
| 114 | sortArrow = sortIcon; | ||
| 115 | |||
| 116 | Border border = null; | ||
| 117 | if (hasFocus) { | ||
| 118 | border = DefaultLookup.getBorder(this, ui, "TableHeader.focusCellBorder"); | ||
| 119 | } | ||
| 120 | if (border == null) { | ||
| 121 | border = DefaultLookup.getBorder(this, ui, "TableHeader.cellBorder"); | ||
| 122 | } | ||
| 123 | setBorder(border); | ||
| 124 | |||
| 125 | return this; | ||
| 126 | } | ||
| 127 | |||
| 128 | public static SortOrder getColumnSortOrder(JTable table, int column) { | ||
| 129 | SortOrder rv = null; | ||
| 130 | if (table == null || table.getRowSorter() == null) { | ||
| 131 | return rv; | ||
| 132 | } | ||
| 133 | java.util.List<? extends RowSorter.SortKey> sortKeys = | ||
| 134 | table.getRowSorter().getSortKeys(); | ||
| 135 | if (sortKeys.size() > 0 && sortKeys.get(0).getColumn() == | ||
| 136 | table.convertColumnIndexToModel(column)) { | ||
| 137 | rv = sortKeys.get(0).getSortOrder(); | ||
| 138 | } | ||
| 139 | return rv; | ||
| 140 | } | ||
| 141 | |||
| 142 | @Override | ||
| 143 | public void paintComponent(Graphics g) { | ||
| 144 | boolean b = DefaultLookup.getBoolean(this, ui, | ||
| 145 | "TableHeader.rightAlignSortArrow", false); | ||
| 146 | if (b && sortArrow != null) { | ||
| 147 | //emptyIcon is used so that if the text in the header is right | ||
| 148 | //aligned, or if the column is too narrow, then the text will | ||
| 149 | //be sized appropriately to make room for the icon that is about | ||
| 150 | //to be painted manually here. | ||
| 151 | emptyIcon.width = sortArrow.getIconWidth(); | ||
| 152 | emptyIcon.height = sortArrow.getIconHeight(); | ||
| 153 | setIcon(emptyIcon); | ||
| 154 | super.paintComponent(g); | ||
| 155 | Point position = computeIconPosition(g); | ||
| 156 | sortArrow.paintIcon(this, g, position.x, position.y); | ||
| 157 | } else { | ||
| 158 | super.paintComponent(g); | ||
| 159 | } | ||
| 160 | } | ||
| 161 | |||
| 162 | private Point computeIconPosition(Graphics g) { | ||
| 163 | FontMetrics fontMetrics = g.getFontMetrics(); | ||
| 164 | Rectangle viewR = new Rectangle(); | ||
| 165 | Rectangle textR = new Rectangle(); | ||
| 166 | Rectangle iconR = new Rectangle(); | ||
| 167 | Insets i = getInsets(); | ||
| 168 | viewR.x = i.left; | ||
| 169 | viewR.y = i.top; | ||
| 170 | viewR.width = getWidth() - (i.left + i.right); | ||
| 171 | viewR.height = getHeight() - (i.top + i.bottom); | ||
| 172 | SwingUtilities.layoutCompoundLabel( | ||
| 173 | this, | ||
| 174 | fontMetrics, | ||
| 175 | getText(), | ||
| 176 | sortArrow, | ||
| 177 | getVerticalAlignment(), | ||
| 178 | getHorizontalAlignment(), | ||
| 179 | getVerticalTextPosition(), | ||
| 180 | getHorizontalTextPosition(), | ||
| 181 | viewR, | ||
| 182 | iconR, | ||
| 183 | textR, | ||
| 184 | getIconTextGap()); | ||
| 185 | int x = getWidth() - i.right - sortArrow.getIconWidth(); | ||
| 186 | int y = iconR.y; | ||
| 187 | return new Point(x, y); | ||
| 188 | } | ||
| 189 | |||
| 190 | private class EmptyIcon implements Icon, Serializable { | ||
| 191 | int width = 0; | ||
| 192 | int height = 0; | ||
| 193 | public void paintIcon(Component c, Graphics g, int x, int y) {} | ||
| 194 | public int getIconWidth() { return width; } | ||
| 195 | public int getIconHeight() { return height; } | ||
| 196 | } | ||
| 197 | } | ||