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| package javaapplication19;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.JTableHeader;
import javax.swing.table.TableModel;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.MouseEvent;
public class TableToolTipsDemo extends JPanel {
private boolean DEBUG = false;
protected String[] columnToolTips = {null,
null,
"The person's favorite sport to participate in",
"The number of years the person has played the sport",
"If checked, the person eats no meat"};
public TableToolTipsDemo() {
super(new GridLayout(1,0));
JTable table = new JTable(new MyTableModel()) {
public String getToolTipText(MouseEvent e) {
String tip = null;
java.awt.Point p = e.getPoint();
int rowIndex = rowAtPoint(p);
int colIndex = columnAtPoint(p);
int realColumnIndex = convertColumnIndexToModel(colIndex);
if (realColumnIndex == 2) {
tip = "This person's favorite sport to "
+ "participate in is: "
+ getValueAt(rowIndex, colIndex);
} else if (realColumnIndex == 4) {
TableModel model = getModel();
String firstName = (String)model.getValueAt(rowIndex,0);
String lastName = (String)model.getValueAt(rowIndex,1);
Boolean veggie = (Boolean)model.getValueAt(rowIndex,4);
if (Boolean.TRUE.equals(veggie)) {
tip = firstName + " " + lastName
+ " is a vegetarian";
} else {
tip = firstName + " " + lastName
+ " is not a vegetarian";
}
} else {
tip = super.getToolTipText(e);
}
return tip;
}
protected JTableHeader createDefaultTableHeader() {
return new JTableHeader(columnModel) {
public String getToolTipText(MouseEvent e) {
String tip = null;
java.awt.Point p = e.getPoint();
int index = columnModel.getColumnIndexAtX(p.x);
int realIndex = columnModel.getColumn(index).getModelIndex();
return columnToolTips[realIndex];
}
};
}
};
table.setPreferredScrollableViewportSize(new Dimension(500, 70));
table.setFillsViewportHeight(true);
JScrollPane scrollPane = new JScrollPane(table);
add(scrollPane);
}
class MyTableModel extends AbstractTableModel {
private String[] columnNames = {"Имя",
"Фамилия",
"Профессия",
"Возраст",
" "};
private Object[][] data = {
{"Иван", "Иванов",
"Хирург", new Integer(27), new Boolean(false)},
{"Федор", "Федоров",
"Учитель", new Integer(33), new Boolean(true)},
{"Михаил", "Круг",
"Певец", new Integer(29), new Boolean(false)},
{"Иван", "Дорн",
"Певец", new Integer(20), new Boolean(true)},
{"Алексей", "Алексеевич",
"Учитель", new Integer(28), new Boolean(false)}
};
public int getColumnCount() {
return columnNames.length;
}
public int getRowCount() {
return data.length;
}
public String getColumnName(int col) {
return columnNames[col];
}
public Object getValueAt(int row, int col) {
return data[row][col];
}
public Class getColumnClass(int c) {
return getValueAt(0, c).getClass();
}
public boolean isCellEditable(int row, int col) {
if (col < 2) {
return false;
} else {
return true;
}
}
public void setValueAt(Object value, int row, int col) {
if (DEBUG) {
System.out.println("Setting value at " + row + "," + col
+ " to " + value
+ " (an instance of "
+ value.getClass() + ")");
}
data[row][col] = value;
fireTableCellUpdated(row, col);
if (DEBUG) {
System.out.println("New value of data:");
printDebugData();
}
}
private void printDebugData() {
int numRows = getRowCount();
int numCols = getColumnCount();
for (int i=0; i < numRows; i++) {
System.out.print(" row " + i + ":");
for (int j=0; j < numCols; j++) {
System.out.print(" " + data[i][j]);
}
System.out.println();
}
System.out.println("--------------------------");
}
}
private static void createAndShowGUI() {
JFrame frame = new JFrame("TableToolTipsDemo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JComponent newContentPane = new TableToolTipsDemo();
newContentPane.setOpaque(true); //content panes must be opaque
frame.setContentPane(newContentPane);
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
} |
(
Сообщение от AdilB
