MyJava

天行健君子以自強(qiáng)不息

BlogJava :: 首頁(yè) :: 新隨筆 :: 聯(lián)系 :: 聚合

:: 管理

posts - 38, comments - 22, trackbacks - 0

公告

兼職寫(xiě)Java應(yīng)用程序保證質(zhì)量需要的和我聯(lián)系大家多交流 msn：zht_dream@hotmail.com QLSC@SDU

<

2025年7月

>

日

一

二

三

四

五

六

29

30

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

1

2

3

4

5

6

7

8

9

常用鏈接

留言簿(3)

隨筆分類(lèi)(31)

隨筆檔案(38)

文章檔案(1)

2007年4月 (1)

相冊(cè)

HH

搜索

積分與排名

積分 - 30206
排名 - 1386

閱讀排行榜

評(píng)論排行榜

JTable 操作

1、缺省編輯器

class CustomModel extends DefaultTableModel {

public CustomModel(Object[][] data, Object[] columnNames) {

super(data, columnNames);

}

public Class getColumnClass(int col) {

// dataVector is a protected member of DefaultTableModel

Vector v = (Vector)dataVector.elementAt(0);

return v.elementAt(col).getClass();

}

public boolean isCellEditable(int row, int col) {

Class columnClass = getColumnClass(col);

return columnClass != ImageIcon.class &&

columnClass != Date.class;

}

2、列大小調(diào)整模式
table.setAutoResizeMode(ex);
JTable.AUTO_RESIZE_OFF,
JTable.AUTO_RESIZE_NEXT_COLUMN,
JTable.AUTO_RESIZE_SUBSEQUENT_COLUMNS,
JTable.AUTO_RESIZE_LAST_COLUMN,
JTable.AUTO_RESIZE_ALL_COLUMNS,
3、列邊距
table.getColumnModel().setColumnMargin(int );
4、隱藏列

private JCheckBox checkBox = new JCheckBox("First Name Column Showing");

public ControlPanel() {

final TableColumnModel tcm = table.getColumnModel();

final TableColumn firstNameColumn = table.getColumn("First Name");

checkBox.setSelected(true);

add(checkBox);

checkBox.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent event) {

if (checkBox.isSelected()) {

tcm.addColumn(firstNameColumn);

tcm.moveColumn(2, 0);//設(shè)置列的位置從第二列轉(zhuǎn)到第0列

} else {

tcm.removeColumn(firstNameColumn);

}

table.sizeColumnsToFit(-1);

}

});

}

5、鎖定左邊列

public class 鎖定列 extends JFrame {
Object[][] listings = new Object[][] {
{ "28 Pickelodan", "Mork and Mindy", "Dukes of Hazard",
"I Love Lucy", "Andy Griffith", "Mission Impossible" },

{ "29 Dizey", "Rulan", "<-- Mulan", "<-- Mulan", "<-- Mulan",
"<-- Mulan" },

{ "31 NBT", "Nightly News", "40/20", "<-- 40/20", "LimeTime",
"<-- LimeTime" },

{ "32 AnimalUniverse", "Amazing Animals", "Animal Rescues",
"Cute Animals", "Killer Animals", "Big and Small Animals" },

   { "34 DSPN", "Tuesday Night FootBall", "<--Tuesday Night FootBall",
     "<--Tuesday Night FootBall", "<--Tuesday Night FootBall",
     "<--Tuesday Night FootBall" },

{ "37 TLC", "Mind Mysteries", "Our World", "Ancient Wonders",
"UFOs", "Ancient Inventions" },

{ "38 THC", "The Civil War", "Stalin", "Watergate", "Kent State",
"WWII" }, };

Object[] columnNames = new Object[] { "Channel", "7:30", "8:00", "8:30",
"9:00", "9:30" };

TableModel sharedModel = new DefaultTableModel(listings, columnNames);

JTable table = new JTable(sharedModel), headerTable = new JTable(
sharedModel);

TableColumnModel tcm = table.getColumnModel();

TableColumn firstColumn = tcm.getColumn(0);

public 鎖定列() {
Container cp = getContentPane();

setActualPreferredColumnWidths(table);
setActualPreferredColumnWidths(headerTable);

table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
headerTable.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);

headerTable.getTableHeader().setReorderingAllowed(false);

  headerTable.setPreferredScrollableViewportSize(new Dimension(
    firstColumn.getPreferredWidth()
      + headerTable.getColumnModel().getColumnMargin(), 0));

cp.add(new ControlPanel(), BorderLayout.NORTH);
cp.add(new JScrollPane(table), BorderLayout.CENTER);
}

class ControlPanel extends JPanel {
JCheckBox checkBox = new JCheckBox("First Column Locked");

public ControlPanel() {
add(checkBox);

   checkBox.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
     JScrollPane scrollPane = (JScrollPane) SwingUtilities
       .getAncestorOfClass(JScrollPane.class, table);

     if (checkBox.isSelected()) {
      tcm.removeColumn(firstColumn);
      scrollPane.setRowHeaderView(headerTable);
      scrollPane.setCorner(JScrollPane.UPPER_LEFT_CORNER,
        headerTable.getTableHeader());
     } else {
      tcm.addColumn(firstColumn);

      int numCols = tcm.getColumnCount();
      tcm.moveColumn(numCols - 1, 0);
      scrollPane.setRowHeaderView(null);
     }
    }
   });
  }
}

public void setActualPreferredColumnWidths(JTable table) {
int columnCount = table.getColumnCount();

  for (int i = 0; i < columnCount; ++i) {
   TableColumn c = table.getColumnModel().getColumn(i);
   int w = getActualPreferredColumnWidth(c);

c.setPreferredWidth(w);
}
}

public int getActualPreferredColumnWidth(TableColumn col) {
int hw = columnHeaderWidth(col), // hw = header width
cw = widestCellInColumn(col); // cw = column width

return hw > cw ? hw : cw;
}

private int columnHeaderWidth(TableColumn col) {

  TableCellRenderer renderer = (col.getHeaderRenderer() == null) ? table
    .getTableHeader().getDefaultRenderer() : col
    .getHeaderRenderer();

Component comp = renderer.getTableCellRendererComponent(table, col
.getHeaderValue(), false, false, 0, 0);

return comp.getPreferredSize().width;
}

private int widestCellInColumn(TableColumn col) {
int c = col.getModelIndex(), width = 0, maxw = 0;

for (int r = 0; r < table.getRowCount(); ++r) {
TableCellRenderer renderer = table.getCellRenderer(r, c);

Component comp = renderer.getTableCellRendererComponent(table,
table.getValueAt(r, c), false, false, r, c);

   width = comp.getPreferredSize().width;
   maxw = width > maxw ? width : maxw;
  }
  return maxw;
}

public static void main(String args[]) {
GraphicJavaApplication.launch(new 鎖定列(),
"Locking the Left-Hand Column", 300, 300, 600, 210);
}
}

6、選取模式
table.setSelectionMode(
selectionConstants[index]);
int[] selectionConstants = {
ListSelectionModel.SINGLE_SELECTION,
ListSelectionModel.SINGLE_INTERVAL_SELECTION,
ListSelectionModel.MULTIPLE_INTERVAL_SELECTION,
};
table.setColumnSelectionAllowed(boolean);

table.setRowSelectionAllowed(boolean);

table.setCellSelectionEnabled(boolean);

7、JTable相應(yīng)雙擊展開(kāi)事件

table.getTableHeader().addMouseListener(new ColumnFitAdapter());

class ColumnFitAdapter extends MouseAdapter {

public void mouseClicked(MouseEvent e) {

if (e.getClickCount() == 2) {

JTableHeader header = (JTableHeader) e.getSource();

TableColumn tableColumn = getResizingColumn(header, e.getPoint());

if (tableColumn == null)

return;

int col = header.getColumnModel().getColumnIndex(

tableColumn.getIdentifier());

JTable table = header.getTable();

int rowCount = table.getRowCount();

int width = (int) header.getDefaultRenderer()

.getTableCellRendererComponent(table,

tableColumn.getIdentifier(), false, false, -1, col)

.getPreferredSize().getWidth();

for (int row = 0; row < rowCount; row++) {

int preferedWidth = (int) table.getCellRenderer(row, col)

.getTableCellRendererComponent(table,

table.getValueAt(row, col), false, false, row,

col).getPreferredSize().getWidth();

width = Math.max(width, preferedWidth);

}

header.setResizingColumn(tableColumn); // this line is very important

tableColumn.setWidth(width + table.getIntercellSpacing().width);

}

// copied from BasicTableHeader.MouseInputHandler.getResizingColumn

private TableColumn getResizingColumn(JTableHeader header, Point p) {

return getResizingColumn(header, p, header.columnAtPoint(p));

}

// copied from BasicTableHeader.MouseInputHandler.getResizingColumn

private TableColumn getResizingColumn(JTableHeader header, 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);

}

posted on 2007-04-11 10:10 aaabbb 閱讀(1105) 評(píng)論(0) 編輯收藏

新用戶(hù)注冊(cè) 刷新評(píng)論列表


只有注冊(cè)用戶(hù)登錄后才能發(fā)表評(píng)論。




網(wǎng)站導(dǎo)航: 博客園 IT新聞 Chat2DB C++博客博問(wèn) 管理

常用鏈接

留言簿(3)

隨筆分類(lèi)(31)

隨筆檔案(38)

文章檔案(1)

相冊(cè)

搜索

積分與排名

最新評(píng)論

閱讀排行榜

評(píng)論排行榜