/* * Copyright (c) 1997, 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 javax.swing.plaf.basic; import java.awt.*;import java.awt.event.*;import java.util.*;import javax.swing.*;import javax.swing.event.*;import javax.swing.plaf.*;import javax.swing.table.*; import sun.swing.*; /** * BasicTableHeaderUI implementation * * @author Alan Chung * @author Philip Milne */public class BasicTableHeaderUI extends TableHeaderUI { private static Cursor resizeCursor = Cursor.getPredefinedCursor(Cursor.E_RESIZE_CURSOR); //// Instance Variables// /** The JTableHeader that is delegating the painting to this UI. */ protected JTableHeader header; protected CellRendererPane rendererPane; // Listeners that are attached to the JTable protected MouseInputListener mouseInputListener; // The column header over which the mouse currently is. private int rolloverColumn = -1; // The column that should be highlighted when the table header has the focus. private int selectedColumnIndex = 0; // Read ONLY via getSelectedColumnIndex! private static FocusListener focusListener = new FocusListener() { public void focusGained(FocusEvent e) { repaintHeader(e.getSource()); } public void focusLost(FocusEvent e) { repaintHeader(e.getSource()); } private void repaintHeader(Object source) { if (source instanceof JTableHeader) { JTableHeader th = (JTableHeader)source; BasicTableHeaderUI ui = (BasicTableHeaderUI)BasicLookAndFeel. getUIOfType(th.getUI(), BasicTableHeaderUI.class); if (ui == null) { return; } th.repaint(th.getHeaderRect(ui.getSelectedColumnIndex())); } } }; /** * This class should be treated as a "protected" inner class. * Instantiate it only within subclasses of {@code BasicTableHeaderUI}. */ public class MouseInputHandler implements MouseInputListener { private int mouseXOffset; private Cursor otherCursor = resizeCursor; public void mouseClicked(MouseEvent e) { if (!header.isEnabled()) { return; } if (e.getClickCount() % 2 == 1 && SwingUtilities.isLeftMouseButton(e)) { JTable table = header.getTable(); RowSorter sorter; if (table != null && (sorter = table.getRowSorter()) != null) { int columnIndex = header.columnAtPoint(e.getPoint()); if (columnIndex != -1) { columnIndex = table.convertColumnIndexToModel( columnIndex); sorter.toggleSortOrder(columnIndex); } } } } private TableColumn getResizingColumn(Point p) { return getResizingColumn(p, header.columnAtPoint(p)); } private TableColumn getResizingColumn(Point p, int column) { if (column == -1) { return null; } Rectangle r = header.getHeaderRect(column); r.grow(-3, 0); if (r.contains(p)) { return null; } int midPoint = r.x + r.width/2; int columnIndex; if( header.getComponentOrientation().isLeftToRight() ) { columnIndex = (p.x < midPoint) ? column - 1 : column; } else { columnIndex = (p.x < midPoint) ? column : column - 1; } if (columnIndex == -1) { return null; } return header.getColumnModel().getColumn(columnIndex); } public void mousePressed(MouseEvent e) { if (!header.isEnabled()) { return; } header.setDraggedColumn(null); header.setResizingColumn(null); header.setDraggedDistance(0); Point p = e.getPoint(); // First find which header cell was hit TableColumnModel columnModel = header.getColumnModel(); int index = header.columnAtPoint(p); if (index != -1) { // The last 3 pixels + 3 pixels of next column are for resizing TableColumn resizingColumn = getResizingColumn(p, index); if (canResize(resizingColumn, header)) { header.setResizingColumn(resizingColumn); if( header.getComponentOrientation().isLeftToRight() ) { mouseXOffset = p.x - resizingColumn.getWidth(); } else { mouseXOffset = p.x + resizingColumn.getWidth(); } } else if (header.getReorderingAllowed()) { TableColumn hitColumn = columnModel.getColumn(index); header.setDraggedColumn(hitColumn); mouseXOffset = p.x; } } if (header.getReorderingAllowed()) { int oldRolloverColumn = rolloverColumn; rolloverColumn = -1; rolloverColumnUpdated(oldRolloverColumn, rolloverColumn); } } private void swapCursor() { Cursor tmp = header.getCursor(); header.setCursor(otherCursor); otherCursor = tmp; } public void mouseMoved(MouseEvent e) { if (!header.isEnabled()) { return; } if (canResize(getResizingColumn(e.getPoint()), header) != (header.getCursor() == resizeCursor)) { swapCursor(); } updateRolloverColumn(e); } public void mouseDragged(MouseEvent e) { if (!header.isEnabled()) { return; } int mouseX = e.getX(); TableColumn resizingColumn = header.getResizingColumn(); TableColumn draggedColumn = header.getDraggedColumn(); boolean headerLeftToRight = header.getComponentOrientation().isLeftToRight(); if (resizingColumn != null) { int oldWidth = resizingColumn.getWidth(); int newWidth; if (headerLeftToRight) { newWidth = mouseX - mouseXOffset; } else { newWidth = mouseXOffset - mouseX; } mouseXOffset += changeColumnWidth(resizingColumn, header, oldWidth, newWidth); } else if (draggedColumn != null) { TableColumnModel cm = header.getColumnModel(); int draggedDistance = mouseX - mouseXOffset; int direction = (draggedDistance < 0) ? -1 : 1; int columnIndex = viewIndexForColumn(draggedColumn); int newColumnIndex = columnIndex + (headerLeftToRight ? direction : -direction); if (0 <= newColumnIndex && newColumnIndex < cm.getColumnCount()) { int width = cm.getColumn(newColumnIndex).getWidth(); if (Math.abs(draggedDistance) > (width / 2)) { mouseXOffset = mouseXOffset + direction * width; header.setDraggedDistance(draggedDistance - direction * width); //Cache the selected column. int selectedIndex = SwingUtilities2.convertColumnIndexToModel( header.getColumnModel(), getSelectedColumnIndex()); //Now do the move. cm.moveColumn(columnIndex, newColumnIndex); //Update the selected index. selectColumn( SwingUtilities2.convertColumnIndexToView( header.getColumnModel(), selectedIndex), false); return; } } setDraggedDistance(draggedDistance, columnIndex); } updateRolloverColumn(e); } public void mouseReleased(MouseEvent e) { if (!header.isEnabled()) { return; } setDraggedDistance(0, viewIndexForColumn(header.getDraggedColumn())); header.setResizingColumn(null); header.setDraggedColumn(null); updateRolloverColumn(e); } public void mouseEntered(MouseEvent e) { if (!header.isEnabled()) { return; } updateRolloverColumn(e); } public void mouseExited(MouseEvent e) { if (!header.isEnabled()) { return; } int oldRolloverColumn = rolloverColumn; rolloverColumn = -1; rolloverColumnUpdated(oldRolloverColumn, rolloverColumn); }//// Protected & Private Methods// private void setDraggedDistance(int draggedDistance, int column) { header.setDraggedDistance(draggedDistance); if (column != -1) { header.getColumnModel().moveColumn(column, column); } } } //// Factory methods for the Listeners// /** * Creates the mouse listener for the JTableHeader. */ protected MouseInputListener createMouseInputListener() { return new MouseInputHandler(); } //// The installation/uninstall procedures and support// public static ComponentUI createUI(JComponent h) { return new BasicTableHeaderUI(); } // Installation public void installUI(JComponent c) { header = (JTableHeader)c; rendererPane = new CellRendererPane(); header.add(rendererPane); installDefaults(); installListeners(); installKeyboardActions(); } /** * Initializes JTableHeader properties such as font, foreground, and background. * The font, foreground, and background properties are only set if their * current value is either null or a UIResource, other properties are set * if the current value is null. * * @see #installUI */ protected void installDefaults() { LookAndFeel.installColorsAndFont(header, "TableHeader.background", "TableHeader.foreground", "TableHeader.font"); LookAndFeel.installProperty(header, "opaque", Boolean.TRUE); } /** * Attaches listeners to the JTableHeader. */ protected void installListeners() { mouseInputListener = createMouseInputListener(); header.addMouseListener(mouseInputListener); header.addMouseMotionListener(mouseInputListener); header.addFocusListener(focusListener); } /** * Register all keyboard actions on the JTableHeader. */ protected void installKeyboardActions() { InputMap keyMap = (InputMap)DefaultLookup.get(header, this, "TableHeader.ancestorInputMap"); SwingUtilities.replaceUIInputMap(header, JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, keyMap); LazyActionMap.installLazyActionMap(header, BasicTableHeaderUI.class, "TableHeader.actionMap"); } // Uninstall methods public void uninstallUI(JComponent c) { uninstallDefaults(); uninstallListeners(); uninstallKeyboardActions(); header.remove(rendererPane); rendererPane = null; header = null; } protected void uninstallDefaults() {} protected void uninstallListeners() { header.removeMouseListener(mouseInputListener); header.removeMouseMotionListener(mouseInputListener); mouseInputListener = null; } /** * Unregisters default key actions. */ protected void uninstallKeyboardActions() { SwingUtilities.replaceUIInputMap(header, JComponent.WHEN_FOCUSED, null); SwingUtilities.replaceUIActionMap(header, null); } /** * Populates TableHeader's actions. */ static void loadActionMap(LazyActionMap map) { map.put(new Actions(Actions.TOGGLE_SORT_ORDER)); map.put(new Actions(Actions.SELECT_COLUMN_TO_LEFT)); map.put(new Actions(Actions.SELECT_COLUMN_TO_RIGHT)); map.put(new Actions(Actions.MOVE_COLUMN_LEFT)); map.put(new Actions(Actions.MOVE_COLUMN_RIGHT)); map.put(new Actions(Actions.RESIZE_LEFT)); map.put(new Actions(Actions.RESIZE_RIGHT)); map.put(new Actions(Actions.FOCUS_TABLE)); } //// Support for mouse rollover// /** * Returns the index of the column header over which the mouse * currently is. When the mouse is not over the table header, * -1 is returned. * * @see #rolloverColumnUpdated(int, int) * @return the index of the current rollover column * @since 1.6 */ protected int getRolloverColumn() { return rolloverColumn; } /** * This method gets called every time when a rollover column in the table * header is updated. Every look and feel that supports a rollover effect * in a table header should override this method and repaint the header. * * @param oldColumn the index of the previous rollover column or -1 if the * mouse was not over a column * @param newColumn the index of the new rollover column or -1 if the mouse * is not over a column * @see #getRolloverColumn() * @see JTableHeader#getHeaderRect(int) * @since 1.6 */ protected void rolloverColumnUpdated(int oldColumn, int newColumn) { } private void updateRolloverColumn(MouseEvent e) { if (header.getDraggedColumn() == null && header.contains(e.getPoint())) { int col = header.columnAtPoint(e.getPoint()); if (col != rolloverColumn) { int oldRolloverColumn = rolloverColumn; rolloverColumn = col; rolloverColumnUpdated(oldRolloverColumn, rolloverColumn); } } } //// Support for keyboard and mouse access// private int selectNextColumn(boolean doIt) { int newIndex = getSelectedColumnIndex(); if (newIndex < header.getColumnModel().getColumnCount() - 1) { newIndex++; if (doIt) { selectColumn(newIndex); } } return newIndex; } private int selectPreviousColumn(boolean doIt) { int newIndex = getSelectedColumnIndex(); if (newIndex > 0) { newIndex--; if (doIt) { selectColumn(newIndex); } } return newIndex; } /** * Selects the specified column in the table header. Repaints the * affected header cells and makes sure the newly selected one is visible. */ void selectColumn(int newColIndex) { selectColumn(newColIndex, true); } void selectColumn(int newColIndex, boolean doScroll) { Rectangle repaintRect = header.getHeaderRect(selectedColumnIndex); header.repaint(repaintRect); selectedColumnIndex = newColIndex; repaintRect = header.getHeaderRect(newColIndex); header.repaint(repaintRect); if (doScroll) { scrollToColumn(newColIndex); } return; } /**Lines 1–500 of 961. Load more
/* * Copyright (c) 1997, 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 javax.swing.plaf.basic; import java.awt.*; import java.awt.event.*; import java.util.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.plaf.*; import javax.swing.table.*; import sun.swing.*; /** * BasicTableHeaderUI implementation * * @author Alan Chung * @author Philip Milne */ public class BasicTableHeaderUI extends TableHeaderUI { private static Cursor resizeCursor = Cursor.getPredefinedCursor(Cursor.E_RESIZE_CURSOR); // // Instance Variables // /** The JTableHeader that is delegating the painting to this UI. */ protected JTableHeader header; protected CellRendererPane rendererPane; // Listeners that are attached to the JTable protected MouseInputListener mouseInputListener; // The column header over which the mouse currently is. private int rolloverColumn = -1; // The column that should be highlighted when the table header has the focus. private int selectedColumnIndex = 0; // Read ONLY via getSelectedColumnIndex! private static FocusListener focusListener = new FocusListener() { public void focusGained(FocusEvent e) { repaintHeader(e.getSource()); } public void focusLost(FocusEvent e) { repaintHeader(e.getSource()); } private void repaintHeader(Object source) { if (source instanceof JTableHeader) { JTableHeader th = (JTableHeader)source; BasicTableHeaderUI ui = (BasicTableHeaderUI)BasicLookAndFeel. getUIOfType(th.getUI(), BasicTableHeaderUI.class); if (ui == null) { return; } th.repaint(th.getHeaderRect(ui.getSelectedColumnIndex())); } } }; /** * This class should be treated as a "protected" inner class. * Instantiate it only within subclasses of {@code BasicTableHeaderUI}. */ public class MouseInputHandler implements MouseInputListener { private int mouseXOffset; private Cursor otherCursor = resizeCursor; public void mouseClicked(MouseEvent e) { if (!header.isEnabled()) { return; } if (e.getClickCount() % 2 == 1 && SwingUtilities.isLeftMouseButton(e)) { JTable table = header.getTable(); RowSorter sorter; if (table != null && (sorter = table.getRowSorter()) != null) { int columnIndex = header.columnAtPoint(e.getPoint()); if (columnIndex != -1) { columnIndex = table.convertColumnIndexToModel( columnIndex); sorter.toggleSortOrder(columnIndex); } } } } private TableColumn getResizingColumn(Point p) { return getResizingColumn(p, header.columnAtPoint(p)); } private TableColumn getResizingColumn(Point p, int column) { if (column == -1) { return null; } Rectangle r = header.getHeaderRect(column); r.grow(-3, 0); if (r.contains(p)) { return null; } int midPoint = r.x + r.width/2; int columnIndex; if( header.getComponentOrientation().isLeftToRight() ) { columnIndex = (p.x < midPoint) ? column - 1 : column; } else { columnIndex = (p.x < midPoint) ? column : column - 1; } if (columnIndex == -1) { return null; } return header.getColumnModel().getColumn(columnIndex); } public void mousePressed(MouseEvent e) { if (!header.isEnabled()) { return; } header.setDraggedColumn(null); header.setResizingColumn(null); header.setDraggedDistance(0); Point p = e.getPoint(); // First find which header cell was hit TableColumnModel columnModel = header.getColumnModel(); int index = header.columnAtPoint(p); if (index != -1) { // The last 3 pixels + 3 pixels of next column are for resizing TableColumn resizingColumn = getResizingColumn(p, index); if (canResize(resizingColumn, header)) { header.setResizingColumn(resizingColumn); if( header.getComponentOrientation().isLeftToRight() ) { mouseXOffset = p.x - resizingColumn.getWidth(); } else { mouseXOffset = p.x + resizingColumn.getWidth(); } } else if (header.getReorderingAllowed()) { TableColumn hitColumn = columnModel.getColumn(index); header.setDraggedColumn(hitColumn); mouseXOffset = p.x; } } if (header.getReorderingAllowed()) { int oldRolloverColumn = rolloverColumn; rolloverColumn = -1; rolloverColumnUpdated(oldRolloverColumn, rolloverColumn); } } private void swapCursor() { Cursor tmp = header.getCursor(); header.setCursor(otherCursor); otherCursor = tmp; } public void mouseMoved(MouseEvent e) { if (!header.isEnabled()) { return; } if (canResize(getResizingColumn(e.getPoint()), header) != (header.getCursor() == resizeCursor)) { swapCursor(); } updateRolloverColumn(e); } public void mouseDragged(MouseEvent e) { if (!header.isEnabled()) { return; } int mouseX = e.getX(); TableColumn resizingColumn = header.getResizingColumn(); TableColumn draggedColumn = header.getDraggedColumn(); boolean headerLeftToRight = header.getComponentOrientation().isLeftToRight(); if (resizingColumn != null) { int oldWidth = resizingColumn.getWidth(); int newWidth; if (headerLeftToRight) { newWidth = mouseX - mouseXOffset; } else { newWidth = mouseXOffset - mouseX; } mouseXOffset += changeColumnWidth(resizingColumn, header, oldWidth, newWidth); } else if (draggedColumn != null) { TableColumnModel cm = header.getColumnModel(); int draggedDistance = mouseX - mouseXOffset; int direction = (draggedDistance < 0) ? -1 : 1; int columnIndex = viewIndexForColumn(draggedColumn); int newColumnIndex = columnIndex + (headerLeftToRight ? direction : -direction); if (0 <= newColumnIndex && newColumnIndex < cm.getColumnCount()) { int width = cm.getColumn(newColumnIndex).getWidth(); if (Math.abs(draggedDistance) > (width / 2)) { mouseXOffset = mouseXOffset + direction * width; header.setDraggedDistance(draggedDistance - direction * width); //Cache the selected column. int selectedIndex = SwingUtilities2.convertColumnIndexToModel( header.getColumnModel(), getSelectedColumnIndex()); //Now do the move. cm.moveColumn(columnIndex, newColumnIndex); //Update the selected index. selectColumn( SwingUtilities2.convertColumnIndexToView( header.getColumnModel(), selectedIndex), false); return; } } setDraggedDistance(draggedDistance, columnIndex); } updateRolloverColumn(e); } public void mouseReleased(MouseEvent e) { if (!header.isEnabled()) { return; } setDraggedDistance(0, viewIndexForColumn(header.getDraggedColumn())); header.setResizingColumn(null); header.setDraggedColumn(null); updateRolloverColumn(e); } public void mouseEntered(MouseEvent e) { if (!header.isEnabled()) { return; } updateRolloverColumn(e); } public void mouseExited(MouseEvent e) { if (!header.isEnabled()) { return; } int oldRolloverColumn = rolloverColumn; rolloverColumn = -1; rolloverColumnUpdated(oldRolloverColumn, rolloverColumn); } // // Protected & Private Methods // private void setDraggedDistance(int draggedDistance, int column) { header.setDraggedDistance(draggedDistance); if (column != -1) { header.getColumnModel().moveColumn(column, column); } } } // // Factory methods for the Listeners // /** * Creates the mouse listener for the JTableHeader. */ protected MouseInputListener createMouseInputListener() { return new MouseInputHandler(); } // // The installation/uninstall procedures and support // public static ComponentUI createUI(JComponent h) { return new BasicTableHeaderUI(); } // Installation public void installUI(JComponent c) { header = (JTableHeader)c; rendererPane = new CellRendererPane(); header.add(rendererPane); installDefaults(); installListeners(); installKeyboardActions(); } /** * Initializes JTableHeader properties such as font, foreground, and background. * The font, foreground, and background properties are only set if their * current value is either null or a UIResource, other properties are set * if the current value is null. * * @see #installUI */ protected void installDefaults() { LookAndFeel.installColorsAndFont(header, "TableHeader.background", "TableHeader.foreground", "TableHeader.font"); LookAndFeel.installProperty(header, "opaque", Boolean.TRUE); } /** * Attaches listeners to the JTableHeader. */ protected void installListeners() { mouseInputListener = createMouseInputListener(); header.addMouseListener(mouseInputListener); header.addMouseMotionListener(mouseInputListener); header.addFocusListener(focusListener); } /** * Register all keyboard actions on the JTableHeader. */ protected void installKeyboardActions() { InputMap keyMap = (InputMap)DefaultLookup.get(header, this, "TableHeader.ancestorInputMap"); SwingUtilities.replaceUIInputMap(header, JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, keyMap); LazyActionMap.installLazyActionMap(header, BasicTableHeaderUI.class, "TableHeader.actionMap"); } // Uninstall methods public void uninstallUI(JComponent c) { uninstallDefaults(); uninstallListeners(); uninstallKeyboardActions(); header.remove(rendererPane); rendererPane = null; header = null; } protected void uninstallDefaults() {} protected void uninstallListeners() { header.removeMouseListener(mouseInputListener); header.removeMouseMotionListener(mouseInputListener); mouseInputListener = null; } /** * Unregisters default key actions. */ protected void uninstallKeyboardActions() { SwingUtilities.replaceUIInputMap(header, JComponent.WHEN_FOCUSED, null); SwingUtilities.replaceUIActionMap(header, null); } /** * Populates TableHeader's actions. */ static void loadActionMap(LazyActionMap map) { map.put(new Actions(Actions.TOGGLE_SORT_ORDER)); map.put(new Actions(Actions.SELECT_COLUMN_TO_LEFT)); map.put(new Actions(Actions.SELECT_COLUMN_TO_RIGHT)); map.put(new Actions(Actions.MOVE_COLUMN_LEFT)); map.put(new Actions(Actions.MOVE_COLUMN_RIGHT)); map.put(new Actions(Actions.RESIZE_LEFT)); map.put(new Actions(Actions.RESIZE_RIGHT)); map.put(new Actions(Actions.FOCUS_TABLE)); } // // Support for mouse rollover // /** * Returns the index of the column header over which the mouse * currently is. When the mouse is not over the table header, * -1 is returned. * * @see #rolloverColumnUpdated(int, int) * @return the index of the current rollover column * @since 1.6 */ protected int getRolloverColumn() { return rolloverColumn; } /** * This method gets called every time when a rollover column in the table * header is updated. Every look and feel that supports a rollover effect * in a table header should override this method and repaint the header. * * @param oldColumn the index of the previous rollover column or -1 if the * mouse was not over a column * @param newColumn the index of the new rollover column or -1 if the mouse * is not over a column * @see #getRolloverColumn() * @see JTableHeader#getHeaderRect(int) * @since 1.6 */ protected void rolloverColumnUpdated(int oldColumn, int newColumn) { } private void updateRolloverColumn(MouseEvent e) { if (header.getDraggedColumn() == null && header.contains(e.getPoint())) { int col = header.columnAtPoint(e.getPoint()); if (col != rolloverColumn) { int oldRolloverColumn = rolloverColumn; rolloverColumn = col; rolloverColumnUpdated(oldRolloverColumn, rolloverColumn); } } } // // Support for keyboard and mouse access // private int selectNextColumn(boolean doIt) { int newIndex = getSelectedColumnIndex(); if (newIndex < header.getColumnModel().getColumnCount() - 1) { newIndex++; if (doIt) { selectColumn(newIndex); } } return newIndex; } private int selectPreviousColumn(boolean doIt) { int newIndex = getSelectedColumnIndex(); if (newIndex > 0) { newIndex--; if (doIt) { selectColumn(newIndex); } } return newIndex; } /** * Selects the specified column in the table header. Repaints the * affected header cells and makes sure the newly selected one is visible. */ void selectColumn(int newColIndex) { selectColumn(newColIndex, true); } void selectColumn(int newColIndex, boolean doScroll) { Rectangle repaintRect = header.getHeaderRect(selectedColumnIndex); header.repaint(repaintRect); selectedColumnIndex = newColIndex; repaintRect = header.getHeaderRect(newColIndex); header.repaint(repaintRect); if (doScroll) { scrollToColumn(newColIndex); } return; } /**