Java 刷新jtable中某行的背景色
我正在尝试设置Swing Jtable行的颜色。 我使用这个类来扩展网络上建议的JtableJava 刷新jtable中某行的背景色,java,swing,colors,jtable,refresh,Java,Swing,Colors,Jtable,Refresh,我正在尝试设置Swing Jtable行的颜色。 我使用这个类来扩展网络上建议的Jtable public class ColorTable extends JTable { private static final long serialVersionUID = 1L; private Map rowColor = new HashMap(); private Map columnColor = new HashMap(); private Colo
public class ColorTable extends JTable {
private static final long serialVersionUID = 1L;
private Map rowColor = new HashMap();
private Map columnColor = new HashMap();
private Color cellColor;
private Color defaultColor;
public ColorTable( TableModel model ) {
super( model );
}
public void setRowColor( int row, Color c) {
rowColor.put( new Integer( row ), c );
}
public void setColumnColor( int column, Color c ) {
columnColor.put( new Integer( column ), c );
}
public void setCellColor( Color c ) {
cellColor = c;
}
public Class getColumnClass(int column) {
return getValueAt(0, column).getClass();
}
public Component prepareRenderer( TableCellRenderer renderer, int row, int column ) {
Component c = super.prepareRenderer( renderer, row, column );
if ( defaultColor == null )
defaultColor = c.getBackground();
// Color order is as follows:
// rowSelection, checkBox toggle for row color, column color, cell color
if ( ! isRowSelected( row ) ) {
Color color = (Color) rowColor.get( new Integer( row ) );
if ( color == null || Boolean.FALSE.equals( getModel().getValueAt( row, 0 ) ) )
color = (Color) columnColor.get( new Integer( column ) );
if ( color == null ) {
// cell color only if cell has special value, for example purposes,
// if the cell value begins with a 2
Object value = getValueAt( row, column );
if ( value != null && value.toString().startsWith( "2" ) )
color = cellColor;
}
if ( color != null )
c.setBackground( color );
else
c.setBackground( defaultColor );
}
return c;
}
public void resetColor(Color color) {
for(int i=0;i<this.getRowCount();i++)
this.setRowColor(i, color);
}
}
有人知道会是什么吗
谢谢,
例如,Ste
import java.awt.*;
导入java.awt.event.ActionEvent;
导入java.awt.event.ActionListener;
导入java.util.Random;
导入java.util.Vector;
导入javax.swing.*;
导入javax.swing.event.ListSelectionEvent;
导入javax.swing.event.ListSelectionListener;
导入javax.swing.event.TableModelEvent;
导入javax.swing.event.TableModelListener;
导入javax.swing.table.AbstractTableModel;
导入javax.swing.table.TableCellRenderer;
公共类论坛实现ListSelectionListener{
私有JFrame=新JFrame(“帧”);
private JPanel fatherCenter=新JPanel();
private JScrollPane tableScroll=new JScrollPane();
私有myTableModel tableModel;
专用JTable对话表;
私人JButton-blueButton;
私有列表选择模型对话框;
专用彩色激光雷达;
专用色clr1;
专用void addComponentsToPane(容器窗格){
tableModel=新的myTableModel();
dialogTable=新的JTable(tableModel){
私有静态最终长serialVersionUID=1L;
@凌驾
公共组件预渲染器(TableCellRenderer渲染器,int行,int列){
组件组件=super.prepareRenderer(渲染器、行、列);
JComponent jc=(JComponent)comp;//用于自定义JComponent
如果(!isRowSelected(世界其他地区)){
int modelRow=convertRowIndexToModel(行);
布尔类型=(布尔)getModel().getValueAt(modelRow,2);
布尔类型1=(布尔)getModel().getValueAt(modelRow,3);
组件设置前景(颜色为黑色);
如果((类型)和(!类型1)){
公司背景(clr1);
}如果((!type)和&(type1)){
公司背景(橙色);
}如果((!type)|(!type1)){
公司背景(颜色为红色);
}否则{
公司背景(第%2行==0?getBackground():getBackground().darker());
}
dialogTable.convertRowIndexToView(0);
}否则{
组件设置前景(蓝色);
}
如果(!isCellEditable(行、列)){
组件设置前景(颜色为红色);
公司背景(颜色为洋红色);
}
返回补偿;
}
};
tableScroll=新的JScrollPane(dialogTable,ScrollPaneConstants.VERTICAL\u SCROLLBAR\u根据需要,
ScrollPaneConstants.水平滚动条(根据需要);
tableScroll.setboorder(空);
dialogTable.getTableHeader().setReorderingAllowed(false);
dialogTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
lsDialog=dialogTable.getSelectionModel();
dialogTable.putClientProperty(“terminateEditOnFocusLost”,Boolean.TRUE);
dialogTable.setRowHeight(20);
dialogTable.setRowMargin(2);
ListSelectionModel rowSelMod=dialogTable.getSelectionModel();
//ListSelectionModel colSelMod=dialogTable.getColumnModel().getSelectionModel();
rowSelMod.addListSelectionListener(此);
//colSelMod.addListSelectionListener(此);
蓝色按钮=新的JButton(“蓝色背景”);
setPreferredSize(新维度(100,30));
addActionListener(新ActionListener()){
已执行的公共无效操作(操作事件e){
如果(clr==颜色.白色){
clr=Color.orange;
clr1=颜色。黄色;
}否则{
clr=颜色。白色;
clr1=颜色。黑色;
}
系统输出打印项次(clr);
dialogTable.setBackground(clr);
dialogTable.repaint();
}
});
父中心=新的JPanel();
父中心布局(新边界布局(10,10));
添加(tableScroll,BorderLayout.CENTER);
父中心。添加(蓝按钮,边界布局。南);
窗格。添加(父中心);
}
私有void addData(){
Runnable doRun1=新的Runnable(){
@凌驾
公开募捐{
tableModel.resetable();
向量tbl=新向量();
向量tbl1=新向量();
随机rnd=新随机();
tbl.添加(“整数”);
tbl.添加(“双”);
tbl.添加(“布尔”);
tbl.添加(“布尔”);
tbl.添加(“字符串”);
tableModel.setColumnNames(tbl);
对于(int行=0;行<30;行++){
tbl1=null;
tbl1=新向量();
tbl1.附录(第+1行);
tbl1.补充件(rnd.nextInt(25)+3.14);
tbl1.addElement((第%3行==0)?false:true);
tbl1.addElement((行%5==0)?false:true);
如果(第%7行==0){
tbl1.添加((“Canc”);
}else if(第%6行==0){
tbl1.添加((“删除”);
}否则{
tbl1.添加((“新”);
}
tableModel.addRow(tbl1);
}
addTableListener();
}
};
SwingUtilities.invokeLater(doRun1);
}
私有void addTableListener(){
tableModel.addTableModelListener(新的TableModelListener(){
@凌驾
公共作废表已更改(TableModelEvent tme){
deployTable.resetColor(Color.green);
// set red background to the
for (Integer x : indexes) {
System.out.println("index "+x+" red!");
deployTable.setRowColor(x, Color.red);
}
deployTable.revalidate();
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Random;
import java.util.Vector;
import javax.swing.*;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableCellRenderer;
public class Forum implements ListSelectionListener {
private JFrame frame = new JFrame("Frame");
private JPanel fatherCenter = new JPanel();
private JScrollPane tableScroll = new JScrollPane();
private myTableModel tableModel;
private JTable dialogTable;
private JButton blueButton;
private ListSelectionModel lsDialog;
private Color clr;
private Color clr1;
private void addComponentsToPane(Container pane) {
tableModel = new myTableModel();
dialogTable = new JTable(tableModel) {
private static final long serialVersionUID = 1L;
@Override
public Component prepareRenderer(TableCellRenderer renderer, int row, int column) {
Component comp = super.prepareRenderer(renderer, row, column);
JComponent jc = (JComponent) comp;//for Custom JComponent
if (!isRowSelected(row)) {
int modelRow = convertRowIndexToModel(row);
boolean type = (Boolean) getModel().getValueAt(modelRow, 2);
boolean type1 = (Boolean) getModel().getValueAt(modelRow, 3);
comp.setForeground(Color.black);
if ((type) && (!type1)) {
comp.setBackground(clr1);
} else if ((!type) && (type1)) {
comp.setBackground(Color.orange);
} else if ((!type) || (!type1)) {
comp.setBackground(Color.red);
} else {
comp.setBackground(row % 2 == 0 ? getBackground() : getBackground().darker());
}
dialogTable.convertRowIndexToView(0);
} else {
comp.setForeground(Color.blue);
}
if (!isCellEditable(row, column)) {
comp.setForeground(Color.red);
comp.setBackground(Color.magenta);
}
return comp;
}
};
tableScroll = new JScrollPane(dialogTable, ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,
ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
tableScroll.setBorder(null);
dialogTable.getTableHeader().setReorderingAllowed(false);
dialogTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
lsDialog = dialogTable.getSelectionModel();
dialogTable.putClientProperty("terminateEditOnFocusLost", Boolean.TRUE);
dialogTable.setRowHeight(20);
dialogTable.setRowMargin(2);
ListSelectionModel rowSelMod = dialogTable.getSelectionModel();
//ListSelectionModel colSelMod = dialogTable.getColumnModel().getSelectionModel();
rowSelMod.addListSelectionListener(this);
//colSelMod.addListSelectionListener(this);
blueButton = new JButton(" Blue BackGround ");
blueButton.setPreferredSize(new Dimension(100, 30));
blueButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (clr == Color.white) {
clr = Color.orange;
clr1 = Color.yellow;
} else {
clr = Color.white;
clr1 = Color.black;
}
System.out.println(clr);
dialogTable.setBackground(clr);
dialogTable.repaint();
}
});
fatherCenter = new JPanel();
fatherCenter.setLayout(new BorderLayout(10, 10));
fatherCenter.add(tableScroll, BorderLayout.CENTER);
fatherCenter.add(blueButton, BorderLayout.SOUTH);
pane.add(fatherCenter);
}
private void addData() {
Runnable doRun1 = new Runnable() {
@Override
public void run() {
tableModel.resetTable();
Vector<String> tbl = new Vector<String>();
Vector<Object> tbl1 = new Vector<Object>();
Random rnd = new Random();
tbl.add("Integer");
tbl.add("Double");
tbl.add("Boolean");
tbl.add("Boolean");
tbl.add("String");
tableModel.setColumnNames(tbl);
for (int row = 0; row < 30; row++) {
tbl1 = null;
tbl1 = new Vector<Object>();
tbl1.addElement(row + 1);
tbl1.addElement(rnd.nextInt(25) + 3.14);
tbl1.addElement((row % 3 == 0) ? false : true);
tbl1.addElement((row % 5 == 0) ? false : true);
if (row % 7 == 0) {
tbl1.add(("Canc"));
} else if (row % 6 == 0) {
tbl1.add(("Del"));
} else {
tbl1.add(("New"));
}
tableModel.addRow(tbl1);
}
addTableListener();
}
};
SwingUtilities.invokeLater(doRun1);
}
private void addTableListener() {
tableModel.addTableModelListener(new TableModelListener() {
@Override
public void tableChanged(TableModelEvent tme) {
if (tme.getType() == TableModelEvent.UPDATE) {
System.out.println("");
System.out.println("Cell " + tme.getFirstRow() + ", "
+ tme.getColumn() + " changed. The new value: "
+ tableModel.getValueAt(tme.getFirstRow(),
tme.getColumn()));
}
}
});
}
public void valueChanged(ListSelectionEvent le) {
int row = dialogTable.getSelectedRow();
int col = dialogTable.getSelectedColumn();
String str = "Selected Row(s): ";
int[] rows = dialogTable.getSelectedRows();
for (int i = 0; i < rows.length; i++) {
str += rows[i] + " ";
}
str += "Selected Column(s): ";
int[] cols = dialogTable.getSelectedColumns();
for (int i = 0; i < cols.length; i++) {
str += cols[i] + " ";
}
str += "Selected Cell: " + dialogTable.getSelectedRow() + ", " + dialogTable.getSelectedColumn();
System.out.println(str);
Object value = dialogTable.getValueAt(row, col);
System.out.println(String.valueOf(value));
}
private void createAndShowGUI() {
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout(10, 10));
addComponentsToPane(frame.getContentPane());
addData();
frame.setLocation(150, 150);
frame.setPreferredSize(new Dimension(400, 647));
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
Forum osFrame = new Forum();
}
public Forum() {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
createAndShowGUI();
}
});
}
private class myTableModel extends AbstractTableModel {
private static final long serialVersionUID = 1L;
private Vector<Vector<Object>> data;
private Vector<String> colNames;
private boolean[] _columnsVisible = {true, true, true, true, true};
myTableModel() {
this.colNames = new Vector<String>();
this.data = new Vector<Vector<Object>>();
}
myTableModel(Vector<String> colnames) {
this.colNames = colnames;
this.data = new Vector<Vector<Object>>();
}
public void resetTable() {
this.colNames.removeAllElements();
this.data.removeAllElements();
}
public void setColumnNames(Vector<String> colNames) {
this.colNames = colNames;
this.fireTableStructureChanged();
}
public void addRow(Vector<Object> data) {
this.data.add(data);
//this.fireTableDataChanged();
//this.fireTableStructureChanged();
this.fireTableRowsInserted(data.size() - 1, data.size() - 1);
}
public void removeRowAt(int row) {
this.data.removeElementAt(row);
//this.fireTableDataChanged();
this.fireTableRowsDeleted(row - 1, data.size() - 1);
}
@Override
public int getColumnCount() {
return this.colNames.size();
}
@Override
public Class<?> getColumnClass(int colNum) {
switch (colNum) {
case 0:
return Integer.class;
case 1:
return Double.class;
case 2:
return Boolean.class;
case 3:
return Boolean.class;
default:
return String.class;
}
}
@Override
public boolean isCellEditable(int row, int colNum) {
switch (colNum) {
case 2:
return false;
default:
return true;
}
}
@Override
public String getColumnName(int colNum) {
return this.colNames.get(colNum);
}
@Override
public int getRowCount() {
return this.data.size();
}
@Override
public Object getValueAt(int row, int col) {
Vector<Object> value = this.data.get(row);
return value.get(col);
}
@Override
public void setValueAt(Object newVal, int row, int col) {
Vector<Object> aRow = data.elementAt(row);
aRow.remove(col);
aRow.insertElementAt(newVal, col);
fireTableCellUpdated(row, col);
}
public void setColumnVisible(int index, boolean visible) {
this._columnsVisible[index] = visible;
this.fireTableStructureChanged();
}
}
}
deployTable.repaint();
deployTable.revalidate();