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package org.openslx.dozmod.gui.helper;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
public class ResizeColumnListener implements MouseListener {
private static Cursor resizeCursor = Cursor.getPredefinedCursor(Cursor.E_RESIZE_CURSOR);
private MouseListener uiListener;
private JTableHeader header;
private TableColumnAdjuster tca;
public ResizeColumnListener(JTable table) {
header = table.getTableHeader();
tca = new TableColumnAdjuster(table);
MouseListener[] listeners = header.getMouseListeners();
for (MouseListener ml : listeners) {
String className = ml.getClass().toString();
if (className.contains("BasicTableHeaderUI")) {
uiListener = ml;
header.removeMouseListener(ml);
header.addMouseListener(this);
}
}
}
@Override
public void mouseClicked(MouseEvent e) {
if (header.getCursor() != resizeCursor) {
uiListener.mouseClicked(e);
return;
}
// Handle the double click event to resize the column
// Note: The last 3 pixels + 3 pixels of next column are for resizing,
// so we need to adjust the mouse point to get the actual column.
if (e.getClickCount() == 2) {
Point p = e.getPoint();
p.x -= 3;
int column = header.columnAtPoint(p);
tca.adjustColumn(column);
// Generate event to reset the cursor
header.dispatchEvent(new MouseEvent(header, MouseEvent.MOUSE_MOVED, e.getWhen(), e.getModifiers(), e.getX(),
e.getY(), 0, false));
}
}
@Override
public void mouseEntered(MouseEvent e) {
uiListener.mouseEntered(e);
}
@Override
public void mouseExited(MouseEvent e) {
uiListener.mouseExited(e);
}
@Override
public void mousePressed(MouseEvent e) {
uiListener.mousePressed(e);
}
@Override
public void mouseReleased(MouseEvent e) {
uiListener.mouseReleased(e);
}
}
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