Example usage for org.eclipse.swt.widgets Tree getColumnOrder

Introduction

In this page you can find the example usage for org.eclipse.swt.widgets Tree getColumnOrder.

Prototype

public int[] getColumnOrder() 

Source Link

Document

Returns an array of zero-relative integers that map the creation order of the receiver's items to the order in which they are currently being displayed.

Usage

From source file:org.eclipse.swt.snippets.Snippet193.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Snippet 193");
    shell.setLayout(new RowLayout(SWT.HORIZONTAL));
    final Tree tree = new Tree(shell, SWT.BORDER | SWT.CHECK);
    tree.setLayoutData(new RowData(-1, 300));
    tree.setHeaderVisible(true);/* ww  w .  ja v  a  2  s  . c  o  m*/
    TreeColumn column = new TreeColumn(tree, SWT.LEFT);
    column.setText("Column 0");
    column = new TreeColumn(tree, SWT.CENTER);
    column.setText("Column 1");
    column = new TreeColumn(tree, SWT.LEFT);
    column.setText("Column 2");
    column = new TreeColumn(tree, SWT.RIGHT);
    column.setText("Column 3");
    column = new TreeColumn(tree, SWT.CENTER);
    column.setText("Column 4");
    for (int i = 0; i < 5; i++) {
        TreeItem item = new TreeItem(tree, SWT.NONE);
        String[] text = new String[] { i + ":0", i + ":1", i + ":2", i + ":3", i + ":4" };
        item.setText(text);
        for (int j = 0; j < 5; j++) {
            TreeItem subItem = new TreeItem(item, SWT.NONE);
            text = new String[] { i + "," + j + ":0", i + "," + j + ":1", i + "," + j + ":2",
                    i + "," + j + ":3", i + "," + j + ":4" };
            subItem.setText(text);
            for (int k = 0; k < 5; k++) {
                TreeItem subsubItem = new TreeItem(subItem, SWT.NONE);
                text = new String[] { i + "," + j + "," + k + ":0", i + "," + j + "," + k + ":1",
                        i + "," + j + "," + k + ":2", i + "," + j + "," + k + ":3",
                        i + "," + j + "," + k + ":4" };
                subsubItem.setText(text);
            }
        }
    }
    Listener listener = e -> System.out.println("Move " + e.widget);
    TreeColumn[] columns = tree.getColumns();
    for (int i = 0; i < columns.length; i++) {
        columns[i].setWidth(100);
        columns[i].setMoveable(true);
        columns[i].addListener(SWT.Move, listener);
    }
    Button b = new Button(shell, SWT.PUSH);
    b.setText("invert column order");
    b.addListener(SWT.Selection, e -> {
        int[] order = tree.getColumnOrder();
        for (int i = 0; i < order.length / 2; i++) {
            int temp = order[i];
            order[i] = order[order.length - i - 1];
            order[order.length - i - 1] = temp;
        }
        tree.setColumnOrder(order);
    });
    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

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