编辑：我添加了一个SSCCE代码
我在 TableCellRenderer 中扩展了 JTextArea，因为我想实现这个 SO 问题中提到的多行文本换行，并且工作正常。现在我遇到了 Nimbus 外观和感觉的奇怪问题。Nimbus 正在为每个单元格添加一个边框，如下图所示。
我的课：
import java.awt.Component;
import java.awt.Dimension;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.UIManager;
import javax.swing.UIManager.LookAndFeelInfo;
import javax.swing.border.EmptyBorder;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;
public class TestJTableMultiline extends JFrame {
/**
*
*/
private static final long serialVersionUID = 1L;
public TestJTableMultiline() {
super("Multi-Line Cell Example");
setDefaultCloseOperation(DISPOSE_ON_CLOSE);
DefaultTableModel dm = new DefaultTableModel() {
/**
*
*/
private static final long serialVersionUID = 1L;
public Class<String> getColumnClass(int columnIndex) {
return String.class;
}
public boolean isCellEditable(int row, int column) {
return false;
}
};
dm.setDataVector(
new Object[][]{
{"A0, Line1\nA0, Line2\nA0, Line3",
"B0, Line1\nB0, Line2",
"C0, Line1"},
{"A1, Line1",
"B1, Line1\nB1, Line2",
"C1, Line1"},
{"A2, Line1",
"B2, Line1",
"C2, Line1"}
},
new Object[] {"A", "B", "C"});
JTable table = new JTable(dm);
table.setDefaultRenderer(String.class, new MultiLineTableCellRenderer());
TableRowSorter<? extends TableModel> sort = new TableRowSorter<DefaultTableModel>(dm);
table.setRowSorter(sort);
JScrollPane scroll = new JScrollPane(table);
getContentPane().add(scroll);
setLocationByPlatform(true);
setSize(400, 430);
setVisible(true);
}
public static void main(String[] args) {
try{
for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
UIManager.setLookAndFeel(info.getClassName());
System.out.println("choosed nimbus");
break;
}
}
}catch(Exception e){
e.printStackTrace();
}
TestJTableMultiline frame = new TestJTableMultiline();
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
}
class MultiLineTableCellRenderer extends JTextArea
implements TableCellRenderer {
/**
*
*/
private static final long serialVersionUID = 1L;
private List<List<Integer>> rowColHeight = new ArrayList<List<Integer>>();
public MultiLineTableCellRenderer() {
setLineWrap(true);
setWrapStyleWord(true);
setOpaque(true);
}
@Override
public Component getTableCellRendererComponent(
JTable table, Object value, boolean isSelected, boolean hasFocus,
int row, int column) {
if (isSelected) {
setForeground(table.getSelectionForeground());
setBackground(table.getSelectionBackground());
} else {
setForeground(table.getForeground());
setBackground(table.getBackground());
}
setFont(table.getFont());
if (hasFocus) {
setBorder(UIManager.getBorder("Table.focusCellHighlightBorder"));
if (table.isCellEditable(row, column)) {
setForeground(UIManager.getColor("Table.focusCellForeground"));
setBackground(UIManager.getColor("Table.focusCellBackground"));
}
} else {
setBorder(new EmptyBorder(1, 2, 1, 2));
}
if (value != null) {
setText(value.toString());
} else {
setText("");
}
adjustRowHeight(table, row, column);
return this;
}
/**
* Calculate the new preferred height for a given row, and sets the height on the table.
*/
private void adjustRowHeight(JTable table, int row, int column) {
//The trick to get this to work properly is to set the width of the column to the
//textarea. The reason for this is that getPreferredSize(), without a width tries
//to place all the text in one line. By setting the size with the with of the column,
//getPreferredSize() returnes the proper height which the row should have in
//order to make room for the text.
int cWidth = table.getTableHeader().getColumnModel().getColumn(column).getWidth();
setSize(new Dimension(cWidth, 1000));
int prefH = getPreferredSize().height;
while (rowColHeight.size() <= row) {
rowColHeight.add(new ArrayList<Integer>(column));
}
List<Integer> colHeights = rowColHeight.get(row);
while (colHeights.size() <= column) {
colHeights.add(0);
}
colHeights.set(column, prefH);
int maxH = prefH;
for (Integer colHeight : colHeights) {
if (colHeight > maxH) {
maxH = colHeight;
}
}
if (table.getRowHeight(row) != maxH) {
table.setRowHeight(row, maxH);
}
}
}
What has been tried:
我已经尝试过
setBorder(null)以及setBorder(BorderFactory.createLineBorder(Color.black))其他各种颜色，例如表格的前景和背景颜色。然后我查看了这个 SO question 并尝试了该解决方案，但我无法解决边界问题。我也尝试过完全删除 setBorder 调用，但结果是一样的。
我还尝试删除此SO question中提到的 jtable 中的单元格边框
我怎样才能用 Nimbus 的外观和感觉解决这个边界问题。
注意：我得到了其他外观和感觉的美景。
