| /* |
| * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package sun.swing.table; |
| |
| import sun.swing.DefaultLookup; |
| |
| import java.awt.Component; |
| import java.awt.Color; |
| import java.awt.FontMetrics; |
| import java.awt.Graphics; |
| import java.awt.Insets; |
| import java.awt.Point; |
| import java.awt.Rectangle; |
| import java.io.Serializable; |
| import javax.swing.*; |
| import javax.swing.plaf.UIResource; |
| import javax.swing.border.Border; |
| import javax.swing.table.*; |
| |
| public class DefaultTableCellHeaderRenderer extends DefaultTableCellRenderer |
| implements UIResource { |
| private boolean horizontalTextPositionSet; |
| private Icon sortArrow; |
| private EmptyIcon emptyIcon = new EmptyIcon(); |
| |
| public DefaultTableCellHeaderRenderer() { |
| setHorizontalAlignment(JLabel.CENTER); |
| } |
| |
| public void setHorizontalTextPosition(int textPosition) { |
| horizontalTextPositionSet = true; |
| super.setHorizontalTextPosition(textPosition); |
| } |
| |
| public Component getTableCellRendererComponent(JTable table, Object value, |
| boolean isSelected, boolean hasFocus, int row, int column) { |
| Icon sortIcon = null; |
| |
| boolean isPaintingForPrint = false; |
| |
| if (table != null) { |
| JTableHeader header = table.getTableHeader(); |
| if (header != null) { |
| Color fgColor = null; |
| Color bgColor = null; |
| if (hasFocus) { |
| fgColor = DefaultLookup.getColor(this, ui, "TableHeader.focusCellForeground"); |
| bgColor = DefaultLookup.getColor(this, ui, "TableHeader.focusCellBackground"); |
| } |
| if (fgColor == null) { |
| fgColor = header.getForeground(); |
| } |
| if (bgColor == null) { |
| bgColor = header.getBackground(); |
| } |
| setForeground(fgColor); |
| setBackground(bgColor); |
| |
| setFont(header.getFont()); |
| |
| isPaintingForPrint = header.isPaintingForPrint(); |
| } |
| |
| if (!isPaintingForPrint && table.getRowSorter() != null) { |
| if (!horizontalTextPositionSet) { |
| // There is a row sorter, and the developer hasn't |
| // set a text position, change to leading. |
| setHorizontalTextPosition(JLabel.LEADING); |
| } |
| SortOrder sortOrder = getColumnSortOrder(table, column); |
| if (sortOrder != null) { |
| switch(sortOrder) { |
| case ASCENDING: |
| sortIcon = DefaultLookup.getIcon( |
| this, ui, "Table.ascendingSortIcon"); |
| break; |
| case DESCENDING: |
| sortIcon = DefaultLookup.getIcon( |
| this, ui, "Table.descendingSortIcon"); |
| break; |
| case UNSORTED: |
| sortIcon = DefaultLookup.getIcon( |
| this, ui, "Table.naturalSortIcon"); |
| break; |
| } |
| } |
| } |
| } |
| |
| setText(value == null ? "" : value.toString()); |
| setIcon(sortIcon); |
| sortArrow = sortIcon; |
| |
| Border border = null; |
| if (hasFocus) { |
| border = DefaultLookup.getBorder(this, ui, "TableHeader.focusCellBorder"); |
| } |
| if (border == null) { |
| border = DefaultLookup.getBorder(this, ui, "TableHeader.cellBorder"); |
| } |
| setBorder(border); |
| |
| return this; |
| } |
| |
| public static SortOrder getColumnSortOrder(JTable table, int column) { |
| SortOrder rv = null; |
| if (table == null || table.getRowSorter() == null) { |
| return rv; |
| } |
| java.util.List<? extends RowSorter.SortKey> sortKeys = |
| table.getRowSorter().getSortKeys(); |
| if (sortKeys.size() > 0 && sortKeys.get(0).getColumn() == |
| table.convertColumnIndexToModel(column)) { |
| rv = sortKeys.get(0).getSortOrder(); |
| } |
| return rv; |
| } |
| |
| @Override |
| public void paintComponent(Graphics g) { |
| boolean b = DefaultLookup.getBoolean(this, ui, |
| "TableHeader.rightAlignSortArrow", false); |
| if (b && sortArrow != null) { |
| //emptyIcon is used so that if the text in the header is right |
| //aligned, or if the column is too narrow, then the text will |
| //be sized appropriately to make room for the icon that is about |
| //to be painted manually here. |
| emptyIcon.width = sortArrow.getIconWidth(); |
| emptyIcon.height = sortArrow.getIconHeight(); |
| setIcon(emptyIcon); |
| super.paintComponent(g); |
| Point position = computeIconPosition(g); |
| sortArrow.paintIcon(this, g, position.x, position.y); |
| } else { |
| super.paintComponent(g); |
| } |
| } |
| |
| private Point computeIconPosition(Graphics g) { |
| FontMetrics fontMetrics = g.getFontMetrics(); |
| Rectangle viewR = new Rectangle(); |
| Rectangle textR = new Rectangle(); |
| Rectangle iconR = new Rectangle(); |
| Insets i = getInsets(); |
| viewR.x = i.left; |
| viewR.y = i.top; |
| viewR.width = getWidth() - (i.left + i.right); |
| viewR.height = getHeight() - (i.top + i.bottom); |
| SwingUtilities.layoutCompoundLabel( |
| this, |
| fontMetrics, |
| getText(), |
| sortArrow, |
| getVerticalAlignment(), |
| getHorizontalAlignment(), |
| getVerticalTextPosition(), |
| getHorizontalTextPosition(), |
| viewR, |
| iconR, |
| textR, |
| getIconTextGap()); |
| int x = getWidth() - i.right - sortArrow.getIconWidth(); |
| int y = iconR.y; |
| return new Point(x, y); |
| } |
| |
| private class EmptyIcon implements Icon, Serializable { |
| int width = 0; |
| int height = 0; |
| public void paintIcon(Component c, Graphics g, int x, int y) {} |
| public int getIconWidth() { return width; } |
| public int getIconHeight() { return height; } |
| } |
| } |