author | alexp |
Tue, 25 May 2010 20:54:59 +0400 | |
changeset 5590 | 3ec077d7e893 |
parent 4394 | 92a8ec883f5d |
child 5595 | 27cbc0c6ba34 |
permissions | -rw-r--r-- |
2 | 1 |
/* |
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* Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Sun designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Sun in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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*/ |
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package javax.swing.plaf.basic; |
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import java.awt.*; |
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import java.awt.event.*; |
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import java.util.*; |
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import javax.swing.*; |
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import javax.swing.event.*; |
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import javax.swing.plaf.*; |
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import javax.swing.table.*; |
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import sun.swing.*; |
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/** |
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* BasicTableHeaderUI implementation |
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* |
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* @author Alan Chung |
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* @author Philip Milne |
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*/ |
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public class BasicTableHeaderUI extends TableHeaderUI { |
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private static Cursor resizeCursor = Cursor.getPredefinedCursor(Cursor.E_RESIZE_CURSOR); |
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// |
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// Instance Variables |
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// |
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/** The JTableHeader that is delegating the painting to this UI. */ |
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protected JTableHeader header; |
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protected CellRendererPane rendererPane; |
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// Listeners that are attached to the JTable |
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protected MouseInputListener mouseInputListener; |
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// The column header over which the mouse currently is. |
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private int rolloverColumn = -1; |
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// The column that should be highlighted when the table header has the focus. |
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private int selectedColumnIndex = 0; // Read ONLY via getSelectedColumnIndex! |
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private static FocusListener focusListener = new FocusListener() { |
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public void focusGained(FocusEvent e) { |
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repaintHeader(e.getSource()); |
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} |
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public void focusLost(FocusEvent e) { |
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repaintHeader(e.getSource()); |
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} |
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private void repaintHeader(Object source) { |
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if (source instanceof JTableHeader) { |
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JTableHeader th = (JTableHeader)source; |
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BasicTableHeaderUI ui = |
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(BasicTableHeaderUI)BasicLookAndFeel. |
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getUIOfType(th.getUI(), |
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BasicTableHeaderUI.class); |
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if (ui == null) { |
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return; |
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} |
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th.repaint(th.getHeaderRect(ui.getSelectedColumnIndex())); |
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} |
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} |
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}; |
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/** |
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* This inner class is marked "public" due to a compiler bug. |
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* This class should be treated as a "protected" inner class. |
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* Instantiate it only within subclasses of BasicTableUI. |
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*/ |
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public class MouseInputHandler implements MouseInputListener { |
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private int mouseXOffset; |
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private Cursor otherCursor = resizeCursor; |
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public void mouseClicked(MouseEvent e) { |
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if (SwingUtilities2.shouldIgnore(e, header)) { |
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return; |
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} |
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if (e.getClickCount() % 2 == 1 && |
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SwingUtilities.isLeftMouseButton(e)) { |
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JTable table = header.getTable(); |
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RowSorter sorter; |
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if (table != null && (sorter = table.getRowSorter()) != null) { |
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int columnIndex = header.columnAtPoint(e.getPoint()); |
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if (columnIndex != -1) { |
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columnIndex = table.convertColumnIndexToModel( |
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columnIndex); |
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sorter.toggleSortOrder(columnIndex); |
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} |
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} |
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} |
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} |
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private TableColumn getResizingColumn(Point p) { |
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return getResizingColumn(p, header.columnAtPoint(p)); |
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} |
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private TableColumn getResizingColumn(Point p, int column) { |
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if (column == -1) { |
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return null; |
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} |
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Rectangle r = header.getHeaderRect(column); |
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r.grow(-3, 0); |
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if (r.contains(p)) { |
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return null; |
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} |
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int midPoint = r.x + r.width/2; |
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int columnIndex; |
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if( header.getComponentOrientation().isLeftToRight() ) { |
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columnIndex = (p.x < midPoint) ? column - 1 : column; |
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} else { |
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columnIndex = (p.x < midPoint) ? column : column - 1; |
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} |
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if (columnIndex == -1) { |
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return null; |
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} |
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return header.getColumnModel().getColumn(columnIndex); |
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} |
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public void mousePressed(MouseEvent e) { |
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if (SwingUtilities2.shouldIgnore(e, header)) { |
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return; |
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} |
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header.setDraggedColumn(null); |
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header.setResizingColumn(null); |
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header.setDraggedDistance(0); |
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Point p = e.getPoint(); |
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// First find which header cell was hit |
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TableColumnModel columnModel = header.getColumnModel(); |
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int index = header.columnAtPoint(p); |
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if (index != -1) { |
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// The last 3 pixels + 3 pixels of next column are for resizing |
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TableColumn resizingColumn = getResizingColumn(p, index); |
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if (canResize(resizingColumn, header)) { |
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header.setResizingColumn(resizingColumn); |
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if( header.getComponentOrientation().isLeftToRight() ) { |
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mouseXOffset = p.x - resizingColumn.getWidth(); |
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} else { |
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mouseXOffset = p.x + resizingColumn.getWidth(); |
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} |
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} |
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else if (header.getReorderingAllowed()) { |
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TableColumn hitColumn = columnModel.getColumn(index); |
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header.setDraggedColumn(hitColumn); |
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mouseXOffset = p.x; |
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} |
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} |
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if (header.getReorderingAllowed()) { |
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int oldRolloverColumn = rolloverColumn; |
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rolloverColumn = -1; |
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rolloverColumnUpdated(oldRolloverColumn, rolloverColumn); |
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} |
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} |
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private void swapCursor() { |
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Cursor tmp = header.getCursor(); |
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header.setCursor(otherCursor); |
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otherCursor = tmp; |
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} |
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public void mouseMoved(MouseEvent e) { |
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if (SwingUtilities2.shouldIgnore(e, header)) { |
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return; |
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} |
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if (canResize(getResizingColumn(e.getPoint()), header) != |
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(header.getCursor() == resizeCursor)) { |
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swapCursor(); |
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} |
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updateRolloverColumn(e); |
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} |
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public void mouseDragged(MouseEvent e) { |
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if (SwingUtilities2.shouldIgnore(e, header)) { |
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return; |
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} |
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int mouseX = e.getX(); |
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TableColumn resizingColumn = header.getResizingColumn(); |
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TableColumn draggedColumn = header.getDraggedColumn(); |
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boolean headerLeftToRight = header.getComponentOrientation().isLeftToRight(); |
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if (resizingColumn != null) { |
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int oldWidth = resizingColumn.getWidth(); |
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int newWidth; |
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if (headerLeftToRight) { |
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newWidth = mouseX - mouseXOffset; |
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} else { |
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newWidth = mouseXOffset - mouseX; |
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} |
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mouseXOffset += changeColumnWidth(resizingColumn, header, |
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oldWidth, newWidth); |
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} |
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else if (draggedColumn != null) { |
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TableColumnModel cm = header.getColumnModel(); |
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int draggedDistance = mouseX - mouseXOffset; |
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int direction = (draggedDistance < 0) ? -1 : 1; |
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int columnIndex = viewIndexForColumn(draggedColumn); |
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int newColumnIndex = columnIndex + (headerLeftToRight ? direction : -direction); |
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if (0 <= newColumnIndex && newColumnIndex < cm.getColumnCount()) { |
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int width = cm.getColumn(newColumnIndex).getWidth(); |
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if (Math.abs(draggedDistance) > (width / 2)) { |
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mouseXOffset = mouseXOffset + direction * width; |
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header.setDraggedDistance(draggedDistance - direction * width); |
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//Cache the selected column. |
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int selectedIndex = |
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SwingUtilities2.convertColumnIndexToModel( |
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header.getColumnModel(), |
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getSelectedColumnIndex()); |
2 | 241 |
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//Now do the move. |
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cm.moveColumn(columnIndex, newColumnIndex); |
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//Update the selected index. |
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selectColumn( |
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SwingUtilities2.convertColumnIndexToView( |
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header.getColumnModel(), selectedIndex), |
2 | 249 |
false); |
250 |
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251 |
return; |
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} |
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} |
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setDraggedDistance(draggedDistance, columnIndex); |
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} |
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256 |
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257 |
updateRolloverColumn(e); |
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} |
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259 |
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260 |
public void mouseReleased(MouseEvent e) { |
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if (SwingUtilities2.shouldIgnore(e, header)) { |
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262 |
return; |
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263 |
} |
2 | 264 |
setDraggedDistance(0, viewIndexForColumn(header.getDraggedColumn())); |
265 |
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266 |
header.setResizingColumn(null); |
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header.setDraggedColumn(null); |
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268 |
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269 |
updateRolloverColumn(e); |
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} |
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271 |
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272 |
public void mouseEntered(MouseEvent e) { |
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if (SwingUtilities2.shouldIgnore(e, header)) { |
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return; |
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275 |
} |
2 | 276 |
updateRolloverColumn(e); |
277 |
} |
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278 |
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279 |
public void mouseExited(MouseEvent e) { |
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if (SwingUtilities2.shouldIgnore(e, header)) { |
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return; |
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282 |
} |
2 | 283 |
int oldRolloverColumn = rolloverColumn; |
284 |
rolloverColumn = -1; |
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285 |
rolloverColumnUpdated(oldRolloverColumn, rolloverColumn); |
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286 |
} |
|
287 |
// |
|
288 |
// Protected & Private Methods |
|
289 |
// |
|
290 |
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291 |
private void setDraggedDistance(int draggedDistance, int column) { |
|
292 |
header.setDraggedDistance(draggedDistance); |
|
293 |
if (column != -1) { |
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header.getColumnModel().moveColumn(column, column); |
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295 |
} |
|
296 |
} |
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297 |
} |
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298 |
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299 |
// |
|
300 |
// Factory methods for the Listeners |
|
301 |
// |
|
302 |
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303 |
/** |
|
304 |
* Creates the mouse listener for the JTableHeader. |
|
305 |
*/ |
|
306 |
protected MouseInputListener createMouseInputListener() { |
|
307 |
return new MouseInputHandler(); |
|
308 |
} |
|
309 |
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310 |
// |
|
311 |
// The installation/uninstall procedures and support |
|
312 |
// |
|
313 |
||
314 |
public static ComponentUI createUI(JComponent h) { |
|
315 |
return new BasicTableHeaderUI(); |
|
316 |
} |
|
317 |
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318 |
// Installation |
|
319 |
||
320 |
public void installUI(JComponent c) { |
|
321 |
header = (JTableHeader)c; |
|
322 |
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323 |
rendererPane = new CellRendererPane(); |
|
324 |
header.add(rendererPane); |
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325 |
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326 |
installDefaults(); |
|
327 |
installListeners(); |
|
328 |
installKeyboardActions(); |
|
329 |
} |
|
330 |
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331 |
/** |
|
4394 | 332 |
* Initializes JTableHeader properties such as font, foreground, and background. |
2 | 333 |
* The font, foreground, and background properties are only set if their |
334 |
* current value is either null or a UIResource, other properties are set |
|
335 |
* if the current value is null. |
|
336 |
* |
|
337 |
* @see #installUI |
|
338 |
*/ |
|
339 |
protected void installDefaults() { |
|
340 |
LookAndFeel.installColorsAndFont(header, "TableHeader.background", |
|
341 |
"TableHeader.foreground", "TableHeader.font"); |
|
342 |
LookAndFeel.installProperty(header, "opaque", Boolean.TRUE); |
|
343 |
} |
|
344 |
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345 |
/** |
|
346 |
* Attaches listeners to the JTableHeader. |
|
347 |
*/ |
|
348 |
protected void installListeners() { |
|
349 |
mouseInputListener = createMouseInputListener(); |
|
350 |
||
351 |
header.addMouseListener(mouseInputListener); |
|
352 |
header.addMouseMotionListener(mouseInputListener); |
|
353 |
header.addFocusListener(focusListener); |
|
354 |
} |
|
355 |
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356 |
/** |
|
357 |
* Register all keyboard actions on the JTableHeader. |
|
358 |
*/ |
|
359 |
protected void installKeyboardActions() { |
|
360 |
InputMap keyMap = (InputMap)DefaultLookup.get(header, this, |
|
361 |
"TableHeader.ancestorInputMap"); |
|
362 |
SwingUtilities.replaceUIInputMap(header, |
|
363 |
JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, keyMap); |
|
364 |
LazyActionMap.installLazyActionMap(header, BasicTableHeaderUI.class, |
|
365 |
"TableHeader.actionMap"); |
|
366 |
} |
|
367 |
||
368 |
// Uninstall methods |
|
369 |
||
370 |
public void uninstallUI(JComponent c) { |
|
371 |
uninstallDefaults(); |
|
372 |
uninstallListeners(); |
|
373 |
uninstallKeyboardActions(); |
|
374 |
||
375 |
header.remove(rendererPane); |
|
376 |
rendererPane = null; |
|
377 |
header = null; |
|
378 |
} |
|
379 |
||
380 |
protected void uninstallDefaults() {} |
|
381 |
||
382 |
protected void uninstallListeners() { |
|
383 |
header.removeMouseListener(mouseInputListener); |
|
384 |
header.removeMouseMotionListener(mouseInputListener); |
|
385 |
||
386 |
mouseInputListener = null; |
|
387 |
} |
|
388 |
||
389 |
/** |
|
390 |
* Unregisters default key actions. |
|
391 |
*/ |
|
392 |
protected void uninstallKeyboardActions() { |
|
393 |
SwingUtilities.replaceUIInputMap(header, JComponent.WHEN_FOCUSED, null); |
|
394 |
SwingUtilities.replaceUIActionMap(header, null); |
|
395 |
} |
|
396 |
||
397 |
/** |
|
398 |
* Populates TableHeader's actions. |
|
399 |
*/ |
|
400 |
static void loadActionMap(LazyActionMap map) { |
|
401 |
map.put(new Actions(Actions.TOGGLE_SORT_ORDER)); |
|
402 |
map.put(new Actions(Actions.SELECT_COLUMN_TO_LEFT)); |
|
403 |
map.put(new Actions(Actions.SELECT_COLUMN_TO_RIGHT)); |
|
404 |
map.put(new Actions(Actions.MOVE_COLUMN_LEFT)); |
|
405 |
map.put(new Actions(Actions.MOVE_COLUMN_RIGHT)); |
|
406 |
map.put(new Actions(Actions.RESIZE_LEFT)); |
|
407 |
map.put(new Actions(Actions.RESIZE_RIGHT)); |
|
408 |
map.put(new Actions(Actions.FOCUS_TABLE)); |
|
409 |
} |
|
410 |
||
411 |
// |
|
412 |
// Support for mouse rollover |
|
413 |
// |
|
414 |
||
415 |
/** |
|
416 |
* Returns the index of the column header over which the mouse |
|
417 |
* currently is. When the mouse is not over the table header, |
|
418 |
* -1 is returned. |
|
419 |
* |
|
420 |
* @see #rolloverColumnUpdated(int, int) |
|
421 |
* @return the index of the current rollover column |
|
422 |
* @since 1.6 |
|
423 |
*/ |
|
424 |
protected int getRolloverColumn() { |
|
425 |
return rolloverColumn; |
|
426 |
} |
|
427 |
||
428 |
/** |
|
4394 | 429 |
* This method gets called every time when a rollover column in the table |
430 |
* header is updated. Every look and feel that supports a rollover effect |
|
431 |
* in a table header should override this method and repaint the header. |
|
2 | 432 |
* |
433 |
* @param oldColumn the index of the previous rollover column or -1 if the |
|
434 |
* mouse was not over a column |
|
435 |
* @param newColumn the index of the new rollover column or -1 if the mouse |
|
436 |
* is not over a column |
|
437 |
* @see #getRolloverColumn() |
|
438 |
* @see JTableHeader#getHeaderRect(int) |
|
439 |
* @since 1.6 |
|
440 |
*/ |
|
441 |
protected void rolloverColumnUpdated(int oldColumn, int newColumn) { |
|
442 |
} |
|
443 |
||
444 |
private void updateRolloverColumn(MouseEvent e) { |
|
445 |
if (header.getDraggedColumn() == null && |
|
446 |
header.contains(e.getPoint())) { |
|
447 |
||
448 |
int col = header.columnAtPoint(e.getPoint()); |
|
449 |
if (col != rolloverColumn) { |
|
450 |
int oldRolloverColumn = rolloverColumn; |
|
451 |
rolloverColumn = col; |
|
452 |
rolloverColumnUpdated(oldRolloverColumn, rolloverColumn); |
|
453 |
} |
|
454 |
} |
|
455 |
} |
|
456 |
||
457 |
// |
|
458 |
// Support for keyboard and mouse access |
|
459 |
// |
|
460 |
private int selectNextColumn(boolean doIt) { |
|
461 |
int newIndex = getSelectedColumnIndex(); |
|
462 |
if (newIndex < header.getColumnModel().getColumnCount() - 1) { |
|
463 |
newIndex++; |
|
464 |
if (doIt) { |
|
465 |
selectColumn(newIndex); |
|
466 |
} |
|
467 |
} |
|
468 |
return newIndex; |
|
469 |
} |
|
470 |
||
471 |
private int selectPreviousColumn(boolean doIt) { |
|
472 |
int newIndex = getSelectedColumnIndex(); |
|
473 |
if (newIndex > 0) { |
|
474 |
newIndex--; |
|
475 |
if (doIt) { |
|
476 |
selectColumn(newIndex); |
|
477 |
} |
|
478 |
} |
|
479 |
return newIndex; |
|
480 |
} |
|
481 |
||
482 |
/** |
|
483 |
* Selects the specified column in the table header. Repaints the |
|
484 |
* affected header cells and makes sure the newly selected one is visible. |
|
485 |
*/ |
|
486 |
void selectColumn(int newColIndex) { |
|
487 |
selectColumn(newColIndex, true); |
|
488 |
} |
|
489 |
||
490 |
void selectColumn(int newColIndex, boolean doScroll) { |
|
491 |
Rectangle repaintRect = header.getHeaderRect(selectedColumnIndex); |
|
492 |
header.repaint(repaintRect); |
|
493 |
selectedColumnIndex = newColIndex; |
|
494 |
repaintRect = header.getHeaderRect(newColIndex); |
|
495 |
header.repaint(repaintRect); |
|
496 |
if (doScroll) { |
|
497 |
scrollToColumn(newColIndex); |
|
498 |
} |
|
499 |
return; |
|
500 |
} |
|
501 |
/** |
|
502 |
* Used by selectColumn to scroll horizontally, if necessary, |
|
503 |
* to ensure that the newly selected column is visible. |
|
504 |
*/ |
|
505 |
private void scrollToColumn(int col) { |
|
506 |
Container container; |
|
507 |
JTable table; |
|
508 |
||
509 |
//Test whether the header is in a scroll pane and has a table. |
|
510 |
if ((header.getParent() == null) || |
|
511 |
((container = header.getParent().getParent()) == null) || |
|
512 |
!(container instanceof JScrollPane) || |
|
513 |
((table = header.getTable()) == null)) { |
|
514 |
return; |
|
515 |
} |
|
516 |
||
517 |
//Now scroll, if necessary. |
|
518 |
Rectangle vis = table.getVisibleRect(); |
|
519 |
Rectangle cellBounds = table.getCellRect(0, col, true); |
|
520 |
vis.x = cellBounds.x; |
|
521 |
vis.width = cellBounds.width; |
|
522 |
table.scrollRectToVisible(vis); |
|
523 |
} |
|
524 |
||
525 |
private int getSelectedColumnIndex() { |
|
526 |
int numCols = header.getColumnModel().getColumnCount(); |
|
527 |
if (selectedColumnIndex >= numCols && numCols > 0) { |
|
528 |
selectedColumnIndex = numCols - 1; |
|
529 |
} |
|
530 |
return selectedColumnIndex; |
|
531 |
} |
|
532 |
||
533 |
private static boolean canResize(TableColumn column, |
|
534 |
JTableHeader header) { |
|
535 |
return (column != null) && header.getResizingAllowed() |
|
536 |
&& column.getResizable(); |
|
537 |
} |
|
538 |
||
539 |
private int changeColumnWidth(TableColumn resizingColumn, |
|
540 |
JTableHeader th, |
|
541 |
int oldWidth, int newWidth) { |
|
542 |
resizingColumn.setWidth(newWidth); |
|
543 |
||
544 |
Container container; |
|
545 |
JTable table; |
|
546 |
||
547 |
if ((th.getParent() == null) || |
|
548 |
((container = th.getParent().getParent()) == null) || |
|
549 |
!(container instanceof JScrollPane) || |
|
550 |
((table = th.getTable()) == null)) { |
|
551 |
return 0; |
|
552 |
} |
|
553 |
||
554 |
if (!container.getComponentOrientation().isLeftToRight() && |
|
555 |
!th.getComponentOrientation().isLeftToRight()) { |
|
556 |
JViewport viewport = ((JScrollPane)container).getViewport(); |
|
557 |
int viewportWidth = viewport.getWidth(); |
|
558 |
int diff = newWidth - oldWidth; |
|
559 |
int newHeaderWidth = table.getWidth() + diff; |
|
560 |
||
561 |
/* Resize a table */ |
|
562 |
Dimension tableSize = table.getSize(); |
|
563 |
tableSize.width += diff; |
|
564 |
table.setSize(tableSize); |
|
565 |
||
566 |
/* If this table is in AUTO_RESIZE_OFF mode and |
|
567 |
* has a horizontal scrollbar, we need to update |
|
568 |
* a view's position. |
|
569 |
*/ |
|
570 |
if ((newHeaderWidth >= viewportWidth) && |
|
571 |
(table.getAutoResizeMode() == JTable.AUTO_RESIZE_OFF)) { |
|
572 |
Point p = viewport.getViewPosition(); |
|
573 |
p.x = Math.max(0, Math.min(newHeaderWidth - viewportWidth, |
|
574 |
p.x + diff)); |
|
575 |
viewport.setViewPosition(p); |
|
576 |
return diff; |
|
577 |
} |
|
578 |
} |
|
579 |
return 0; |
|
580 |
} |
|
581 |
||
582 |
// |
|
583 |
// Baseline |
|
584 |
// |
|
585 |
||
586 |
/** |
|
587 |
* Returns the baseline. |
|
588 |
* |
|
589 |
* @throws NullPointerException {@inheritDoc} |
|
590 |
* @throws IllegalArgumentException {@inheritDoc} |
|
591 |
* @see javax.swing.JComponent#getBaseline(int, int) |
|
592 |
* @since 1.6 |
|
593 |
*/ |
|
594 |
public int getBaseline(JComponent c, int width, int height) { |
|
595 |
super.getBaseline(c, width, height); |
|
596 |
int baseline = -1; |
|
597 |
TableColumnModel columnModel = header.getColumnModel(); |
|
598 |
for(int column = 0; column < columnModel.getColumnCount(); |
|
599 |
column++) { |
|
600 |
TableColumn aColumn = columnModel.getColumn(column); |
|
601 |
Component comp = getHeaderRenderer(column); |
|
602 |
Dimension pref = comp.getPreferredSize(); |
|
603 |
int columnBaseline = comp.getBaseline(pref.width, height); |
|
604 |
if (columnBaseline >= 0) { |
|
605 |
if (baseline == -1) { |
|
606 |
baseline = columnBaseline; |
|
607 |
} |
|
608 |
else if (baseline != columnBaseline) { |
|
609 |
baseline = -1; |
|
610 |
break; |
|
611 |
} |
|
612 |
} |
|
613 |
} |
|
614 |
return baseline; |
|
615 |
} |
|
616 |
||
617 |
// |
|
618 |
// Paint Methods and support |
|
619 |
// |
|
620 |
||
621 |
public void paint(Graphics g, JComponent c) { |
|
622 |
if (header.getColumnModel().getColumnCount() <= 0) { |
|
623 |
return; |
|
624 |
} |
|
625 |
boolean ltr = header.getComponentOrientation().isLeftToRight(); |
|
626 |
||
627 |
Rectangle clip = g.getClipBounds(); |
|
628 |
Point left = clip.getLocation(); |
|
629 |
Point right = new Point( clip.x + clip.width - 1, clip.y ); |
|
630 |
TableColumnModel cm = header.getColumnModel(); |
|
631 |
int cMin = header.columnAtPoint( ltr ? left : right ); |
|
632 |
int cMax = header.columnAtPoint( ltr ? right : left ); |
|
633 |
// This should never happen. |
|
634 |
if (cMin == -1) { |
|
635 |
cMin = 0; |
|
636 |
} |
|
637 |
// If the table does not have enough columns to fill the view we'll get -1. |
|
638 |
// Replace this with the index of the last column. |
|
639 |
if (cMax == -1) { |
|
640 |
cMax = cm.getColumnCount()-1; |
|
641 |
} |
|
642 |
||
643 |
TableColumn draggedColumn = header.getDraggedColumn(); |
|
644 |
int columnWidth; |
|
645 |
Rectangle cellRect = header.getHeaderRect(ltr ? cMin : cMax); |
|
646 |
TableColumn aColumn; |
|
647 |
if (ltr) { |
|
648 |
for(int column = cMin; column <= cMax ; column++) { |
|
649 |
aColumn = cm.getColumn(column); |
|
650 |
columnWidth = aColumn.getWidth(); |
|
651 |
cellRect.width = columnWidth; |
|
652 |
if (aColumn != draggedColumn) { |
|
653 |
paintCell(g, cellRect, column); |
|
654 |
} |
|
655 |
cellRect.x += columnWidth; |
|
656 |
} |
|
657 |
} else { |
|
658 |
for(int column = cMax; column >= cMin; column--) { |
|
659 |
aColumn = cm.getColumn(column); |
|
660 |
columnWidth = aColumn.getWidth(); |
|
661 |
cellRect.width = columnWidth; |
|
662 |
if (aColumn != draggedColumn) { |
|
663 |
paintCell(g, cellRect, column); |
|
664 |
} |
|
665 |
cellRect.x += columnWidth; |
|
666 |
} |
|
667 |
} |
|
668 |
||
669 |
// Paint the dragged column if we are dragging. |
|
670 |
if (draggedColumn != null) { |
|
671 |
int draggedColumnIndex = viewIndexForColumn(draggedColumn); |
|
672 |
Rectangle draggedCellRect = header.getHeaderRect(draggedColumnIndex); |
|
673 |
||
674 |
// Draw a gray well in place of the moving column. |
|
675 |
g.setColor(header.getParent().getBackground()); |
|
676 |
g.fillRect(draggedCellRect.x, draggedCellRect.y, |
|
677 |
draggedCellRect.width, draggedCellRect.height); |
|
678 |
||
679 |
draggedCellRect.x += header.getDraggedDistance(); |
|
680 |
||
681 |
// Fill the background. |
|
682 |
g.setColor(header.getBackground()); |
|
683 |
g.fillRect(draggedCellRect.x, draggedCellRect.y, |
|
684 |
draggedCellRect.width, draggedCellRect.height); |
|
685 |
||
686 |
paintCell(g, draggedCellRect, draggedColumnIndex); |
|
687 |
} |
|
688 |
||
689 |
// Remove all components in the rendererPane. |
|
690 |
rendererPane.removeAll(); |
|
691 |
} |
|
692 |
||
693 |
private Component getHeaderRenderer(int columnIndex) { |
|
694 |
TableColumn aColumn = header.getColumnModel().getColumn(columnIndex); |
|
695 |
TableCellRenderer renderer = aColumn.getHeaderRenderer(); |
|
696 |
if (renderer == null) { |
|
697 |
renderer = header.getDefaultRenderer(); |
|
698 |
} |
|
699 |
||
700 |
boolean hasFocus = !header.isPaintingForPrint() |
|
701 |
&& (columnIndex == getSelectedColumnIndex()) |
|
702 |
&& header.hasFocus(); |
|
703 |
return renderer.getTableCellRendererComponent(header.getTable(), |
|
704 |
aColumn.getHeaderValue(), |
|
705 |
false, hasFocus, |
|
706 |
-1, columnIndex); |
|
707 |
} |
|
708 |
||
709 |
private void paintCell(Graphics g, Rectangle cellRect, int columnIndex) { |
|
710 |
Component component = getHeaderRenderer(columnIndex); |
|
711 |
rendererPane.paintComponent(g, component, header, cellRect.x, cellRect.y, |
|
712 |
cellRect.width, cellRect.height, true); |
|
713 |
} |
|
714 |
||
715 |
private int viewIndexForColumn(TableColumn aColumn) { |
|
716 |
TableColumnModel cm = header.getColumnModel(); |
|
717 |
for (int column = 0; column < cm.getColumnCount(); column++) { |
|
718 |
if (cm.getColumn(column) == aColumn) { |
|
719 |
return column; |
|
720 |
} |
|
721 |
} |
|
722 |
return -1; |
|
723 |
} |
|
724 |
||
725 |
// |
|
726 |
// Size Methods |
|
727 |
// |
|
728 |
||
729 |
private int getHeaderHeight() { |
|
730 |
int height = 0; |
|
731 |
boolean accomodatedDefault = false; |
|
732 |
TableColumnModel columnModel = header.getColumnModel(); |
|
733 |
for(int column = 0; column < columnModel.getColumnCount(); column++) { |
|
734 |
TableColumn aColumn = columnModel.getColumn(column); |
|
735 |
boolean isDefault = (aColumn.getHeaderRenderer() == null); |
|
736 |
||
737 |
if (!isDefault || !accomodatedDefault) { |
|
738 |
Component comp = getHeaderRenderer(column); |
|
739 |
int rendererHeight = comp.getPreferredSize().height; |
|
740 |
height = Math.max(height, rendererHeight); |
|
741 |
||
742 |
// Configuring the header renderer to calculate its preferred size |
|
743 |
// is expensive. Optimise this by assuming the default renderer |
|
744 |
// always has the same height as the first non-zero height that |
|
745 |
// it returns for a non-null/non-empty value. |
|
746 |
if (isDefault && rendererHeight > 0) { |
|
747 |
Object headerValue = aColumn.getHeaderValue(); |
|
748 |
if (headerValue != null) { |
|
749 |
headerValue = headerValue.toString(); |
|
750 |
||
751 |
if (headerValue != null && !headerValue.equals("")) { |
|
752 |
accomodatedDefault = true; |
|
753 |
} |
|
754 |
} |
|
755 |
} |
|
756 |
} |
|
757 |
} |
|
758 |
return height; |
|
759 |
} |
|
760 |
||
761 |
private Dimension createHeaderSize(long width) { |
|
762 |
// None of the callers include the intercell spacing, do it here. |
|
763 |
if (width > Integer.MAX_VALUE) { |
|
764 |
width = Integer.MAX_VALUE; |
|
765 |
} |
|
766 |
return new Dimension((int)width, getHeaderHeight()); |
|
767 |
} |
|
768 |
||
769 |
||
770 |
/** |
|
771 |
* Return the minimum size of the header. The minimum width is the sum |
|
772 |
* of the minimum widths of each column (plus inter-cell spacing). |
|
773 |
*/ |
|
774 |
public Dimension getMinimumSize(JComponent c) { |
|
775 |
long width = 0; |
|
776 |
Enumeration enumeration = header.getColumnModel().getColumns(); |
|
777 |
while (enumeration.hasMoreElements()) { |
|
778 |
TableColumn aColumn = (TableColumn)enumeration.nextElement(); |
|
779 |
width = width + aColumn.getMinWidth(); |
|
780 |
} |
|
781 |
return createHeaderSize(width); |
|
782 |
} |
|
783 |
||
784 |
/** |
|
785 |
* Return the preferred size of the header. The preferred height is the |
|
786 |
* maximum of the preferred heights of all of the components provided |
|
787 |
* by the header renderers. The preferred width is the sum of the |
|
788 |
* preferred widths of each column (plus inter-cell spacing). |
|
789 |
*/ |
|
790 |
public Dimension getPreferredSize(JComponent c) { |
|
791 |
long width = 0; |
|
792 |
Enumeration enumeration = header.getColumnModel().getColumns(); |
|
793 |
while (enumeration.hasMoreElements()) { |
|
794 |
TableColumn aColumn = (TableColumn)enumeration.nextElement(); |
|
795 |
width = width + aColumn.getPreferredWidth(); |
|
796 |
} |
|
797 |
return createHeaderSize(width); |
|
798 |
} |
|
799 |
||
800 |
/** |
|
801 |
* Return the maximum size of the header. The maximum width is the sum |
|
802 |
* of the maximum widths of each column (plus inter-cell spacing). |
|
803 |
*/ |
|
804 |
public Dimension getMaximumSize(JComponent c) { |
|
805 |
long width = 0; |
|
806 |
Enumeration enumeration = header.getColumnModel().getColumns(); |
|
807 |
while (enumeration.hasMoreElements()) { |
|
808 |
TableColumn aColumn = (TableColumn)enumeration.nextElement(); |
|
809 |
width = width + aColumn.getMaxWidth(); |
|
810 |
} |
|
811 |
return createHeaderSize(width); |
|
812 |
} |
|
813 |
||
814 |
private static class Actions extends UIAction { |
|
815 |
public static final String TOGGLE_SORT_ORDER = |
|
816 |
"toggleSortOrder"; |
|
817 |
public static final String SELECT_COLUMN_TO_LEFT = |
|
818 |
"selectColumnToLeft"; |
|
819 |
public static final String SELECT_COLUMN_TO_RIGHT = |
|
820 |
"selectColumnToRight"; |
|
821 |
public static final String MOVE_COLUMN_LEFT = |
|
822 |
"moveColumnLeft"; |
|
823 |
public static final String MOVE_COLUMN_RIGHT = |
|
824 |
"moveColumnRight"; |
|
825 |
public static final String RESIZE_LEFT = |
|
826 |
"resizeLeft"; |
|
827 |
public static final String RESIZE_RIGHT = |
|
828 |
"resizeRight"; |
|
829 |
public static final String FOCUS_TABLE = |
|
830 |
"focusTable"; |
|
831 |
||
832 |
public Actions(String name) { |
|
833 |
super(name); |
|
834 |
} |
|
835 |
||
836 |
public boolean isEnabled(Object sender) { |
|
837 |
if (sender instanceof JTableHeader) { |
|
838 |
JTableHeader th = (JTableHeader)sender; |
|
839 |
TableColumnModel cm = th.getColumnModel(); |
|
840 |
if (cm.getColumnCount() <= 0) { |
|
841 |
return false; |
|
842 |
} |
|
843 |
||
844 |
String key = getName(); |
|
845 |
BasicTableHeaderUI ui = |
|
846 |
(BasicTableHeaderUI)BasicLookAndFeel.getUIOfType(th.getUI(), |
|
847 |
BasicTableHeaderUI.class); |
|
848 |
if (ui != null) { |
|
849 |
if (key == MOVE_COLUMN_LEFT) { |
|
850 |
return th.getReorderingAllowed() |
|
851 |
&& maybeMoveColumn(true, th, ui, false); |
|
852 |
} else if (key == MOVE_COLUMN_RIGHT) { |
|
853 |
return th.getReorderingAllowed() |
|
854 |
&& maybeMoveColumn(false, th, ui, false); |
|
855 |
} else if (key == RESIZE_LEFT || |
|
856 |
key == RESIZE_RIGHT) { |
|
857 |
return canResize(cm.getColumn(ui.getSelectedColumnIndex()), th); |
|
858 |
} else if (key == FOCUS_TABLE) { |
|
859 |
return (th.getTable() != null); |
|
860 |
} |
|
861 |
} |
|
862 |
} |
|
863 |
return true; |
|
864 |
} |
|
865 |
||
866 |
public void actionPerformed(ActionEvent e) { |
|
867 |
JTableHeader th = (JTableHeader)e.getSource(); |
|
868 |
BasicTableHeaderUI ui = |
|
869 |
(BasicTableHeaderUI)BasicLookAndFeel. |
|
870 |
getUIOfType(th.getUI(), |
|
871 |
BasicTableHeaderUI.class); |
|
872 |
if (ui == null) { |
|
873 |
return; |
|
874 |
} |
|
875 |
||
876 |
String name = getName(); |
|
877 |
if (TOGGLE_SORT_ORDER == name) { |
|
878 |
JTable table = th.getTable(); |
|
879 |
RowSorter sorter = table.getRowSorter(); |
|
880 |
if (sorter != null) { |
|
881 |
int columnIndex = ui.getSelectedColumnIndex(); |
|
882 |
columnIndex = table.convertColumnIndexToModel( |
|
883 |
columnIndex); |
|
884 |
sorter.toggleSortOrder(columnIndex); |
|
885 |
} |
|
886 |
} else if (SELECT_COLUMN_TO_LEFT == name) { |
|
887 |
if (th.getComponentOrientation().isLeftToRight()) { |
|
888 |
ui.selectPreviousColumn(true); |
|
889 |
} else { |
|
890 |
ui.selectNextColumn(true); |
|
891 |
} |
|
892 |
} else if (SELECT_COLUMN_TO_RIGHT == name) { |
|
893 |
if (th.getComponentOrientation().isLeftToRight()) { |
|
894 |
ui.selectNextColumn(true); |
|
895 |
} else { |
|
896 |
ui.selectPreviousColumn(true); |
|
897 |
} |
|
898 |
} else if (MOVE_COLUMN_LEFT == name) { |
|
899 |
moveColumn(true, th, ui); |
|
900 |
} else if (MOVE_COLUMN_RIGHT == name) { |
|
901 |
moveColumn(false, th, ui); |
|
902 |
} else if (RESIZE_LEFT == name) { |
|
903 |
resize(true, th, ui); |
|
904 |
} else if (RESIZE_RIGHT == name) { |
|
905 |
resize(false, th, ui); |
|
906 |
} else if (FOCUS_TABLE == name) { |
|
907 |
JTable table = th.getTable(); |
|
908 |
if (table != null) { |
|
909 |
table.requestFocusInWindow(); |
|
910 |
} |
|
911 |
} |
|
912 |
} |
|
913 |
||
914 |
private void moveColumn(boolean leftArrow, JTableHeader th, |
|
915 |
BasicTableHeaderUI ui) { |
|
916 |
maybeMoveColumn(leftArrow, th, ui, true); |
|
917 |
} |
|
918 |
||
919 |
private boolean maybeMoveColumn(boolean leftArrow, JTableHeader th, |
|
920 |
BasicTableHeaderUI ui, boolean doIt) { |
|
921 |
int oldIndex = ui.getSelectedColumnIndex(); |
|
922 |
int newIndex; |
|
923 |
||
924 |
if (th.getComponentOrientation().isLeftToRight()) { |
|
925 |
newIndex = leftArrow ? ui.selectPreviousColumn(doIt) |
|
926 |
: ui.selectNextColumn(doIt); |
|
927 |
} else { |
|
928 |
newIndex = leftArrow ? ui.selectNextColumn(doIt) |
|
929 |
: ui.selectPreviousColumn(doIt); |
|
930 |
} |
|
931 |
||
932 |
if (newIndex != oldIndex) { |
|
933 |
if (doIt) { |
|
934 |
th.getColumnModel().moveColumn(oldIndex, newIndex); |
|
935 |
} else { |
|
936 |
return true; // we'd do the move if asked |
|
937 |
} |
|
938 |
} |
|
939 |
||
940 |
return false; |
|
941 |
} |
|
942 |
||
943 |
private void resize(boolean leftArrow, JTableHeader th, |
|
944 |
BasicTableHeaderUI ui) { |
|
945 |
int columnIndex = ui.getSelectedColumnIndex(); |
|
946 |
TableColumn resizingColumn = |
|
947 |
th.getColumnModel().getColumn(columnIndex); |
|
948 |
||
949 |
th.setResizingColumn(resizingColumn); |
|
950 |
int oldWidth = resizingColumn.getWidth(); |
|
951 |
int newWidth = oldWidth; |
|
952 |
||
953 |
if (th.getComponentOrientation().isLeftToRight()) { |
|
954 |
newWidth = newWidth + (leftArrow ? -1 : 1); |
|
955 |
} else { |
|
956 |
newWidth = newWidth + (leftArrow ? 1 : -1); |
|
957 |
} |
|
958 |
||
959 |
ui.changeColumnWidth(resizingColumn, th, oldWidth, newWidth); |
|
960 |
} |
|
961 |
} |
|
962 |
} // End of Class BasicTableHeaderUI |