/*
* Copyright ( c ) 2012 , 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 .
*
* 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 .
*/
/*
* Portions Copyright ( c ) 2012 IBM Corporation
*/
/*
* @ test
* @ key headful
* @ bug 7055065
* @ summary NullPointerException when sorting JTable with empty cell
* @ author Jonathan Lu
* @ library . . / . . / regtesthelpers /
* @ build Util
* @ run main bug7055065
*/
import java.awt.Dimension;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;
import java.util.concurrent.Callable;
public class bug7055065 {
private static JTable table;
public static void main(String[] args) throws Exception {
Robot robot = new Robot();
SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
createAndShowUI();
}
});
robot.waitForIdle();
clickCell(robot, 1 , 1 );
Util.hitKeys(robot, KeyEvent.VK_BACK_SPACE, KeyEvent.VK_BACK_SPACE,
KeyEvent.VK_BACK_SPACE);
robot.waitForIdle();
clickColumnHeader(robot, 1 );
robot.waitForIdle();
clickColumnHeader(robot, 1 );
}
private static void clickCell(Robot robot, final int row, final int column)
throws Exception {
Point point = Util.invokeOnEDT(new Callable<Point>() {
@Override
public Point call() throws Exception {
Rectangle rect = table.getCellRect(row, column, false );
Point point = new Point(rect.x + rect.width / 2 , rect.y
+ rect.height / 2 );
SwingUtilities.convertPointToScreen(point, table);
return point;
}
});
robot.mouseMove(point.x, point.y);
robot.mousePress(InputEvent.BUTTON1_MASK);
robot.mouseRelease(InputEvent.BUTTON1_MASK);
}
private static void clickColumnHeader(Robot robot, final int column)
throws Exception {
Point point = Util.invokeOnEDT(new Callable<Point>() {
@Override
public Point call() throws Exception {
Rectangle rect = table.getCellRect(0 , column, false );
int headerHeight = table.getTableHeader().getHeight();
Point point = new Point(rect.x + rect.width / 2 , rect.y
- headerHeight / 2 );
SwingUtilities.convertPointToScreen(point, table);
return point;
}
});
robot.mouseMove(point.x, point.y);
robot.mousePress(InputEvent.BUTTON1_MASK);
robot.mouseRelease(InputEvent.BUTTON1_MASK);
}
private static void createAndShowUI() {
JFrame frame = new JFrame("SimpleTableDemo" );
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel newContentPane = new JPanel();
newContentPane.setOpaque(true );
frame.setContentPane(newContentPane);
final String[] columnNames = { "String" , "Number" };
final Object[][] data = { { "aaaa" , new Integer(1 ) },
{ "bbbb" , new Integer(3 ) }, { "cccc" , new Integer(2 ) },
{ "dddd" , new Integer(4 ) }, { "eeee" , new Integer(5 ) } };
table = new JTable(data, columnNames);
table.setPreferredScrollableViewportSize(new Dimension(500 , 400 ));
table.setFillsViewportHeight(true );
TableModel dataModel = new AbstractTableModel() {
public int getColumnCount() {
return columnNames.length;
}
public int getRowCount() {
return data.length;
}
public Object getValueAt(int row, int col) {
return data[row][col];
}
public String getColumnName(int column) {
return columnNames[column];
}
public Class <?> getColumnClass(int c) {
return getValueAt(0 , c).getClass();
}
public boolean isCellEditable(int row, int col) {
return col != 5 ;
}
public void setValueAt(Object aValue, int row, int column) {
data[row][column] = aValue;
}
};
table.setModel(dataModel);
TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(
dataModel);
table.setRowSorter(sorter);
JScrollPane scrollPane = new JScrollPane(table);
newContentPane.add(scrollPane);
frame.pack();
frame.setLocation(0 , 0 );
frame.setVisible(true );
}
}
Messung V0.5 in Prozent C=94 H=90 G=91
¤ Dauer der Verarbeitung: 0.2 Sekunden
¤
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