Laboratoire ICAR » Plateforme TXM

package org.txm.rcp.swt.widget;

import java.util.ArrayList;

import org.eclipse.jface.viewers.TableViewer;

import org.eclipse.swt.SWT;

import org.eclipse.swt.events.SelectionAdapter;

import org.eclipse.swt.events.SelectionEvent;

import org.eclipse.swt.layout.FormAttachment;

import org.eclipse.swt.layout.FormData;

import org.eclipse.swt.layout.FormLayout;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Sash;

public class SuperTableViewer extends Composite {

	protected ArrayList<SuperTableColumn> columns;

	public SuperTableViewer(Composite parent, int style) {

		super(parent, style);

		this.setLayout(new FormLayout());

	}

	private void updatePositions() {

		for (int i = 0 ; i < columns.size() ; i++) {

			columns.get(i).updatePosition(i);

		}

	}

	public SuperTableColumn newColumn(String name) {

		return newColumn(name, -1);

	}

	public SuperTableColumn newColumn(String name, int position) {

		SuperTableColumn col = new SuperTableColumn(this, name);

		if (position > 0) {

			this.columns.add(position, col);

		} else {

			this.columns.add(col);

		}

		updatePositions();

		return col;

	}

	public class SuperTableColumn extends TableViewer {

		SuperTableViewer table;

		Sash sash;

		FormData data = new FormData();

		FormData data2 = new FormData();

		String name;

		int position;

		protected SuperTableColumn(SuperTableViewer table, String name) {

			super(table, SWT.MULTI | SWT.FULL_SELECTION | SWT.BORDER);

			this.table = table;

			sash = new Sash(table, SWT.VERTICAL);

			sash.addSelectionListener(new SelectionAdapter() {

				public void widgetSelected(SelectionEvent event) {

					((FormData) sash.getLayoutData()).left = new FormAttachment(0, event.x);

					sash.getParent().layout();

				}

			});

		}

		public void updatePosition(int position) {

			data.top = new FormAttachment(0); 

			data.bottom = new FormAttachment(100);

			if (position == 0) {

				data.left = new FormAttachment(0);

			} else {

				data.left = new FormAttachment(table.getColumn(position-1).getTable());

			}

			data.right = new FormAttachment(sash,0);

			this.getTable().setLayoutData(data);

			data2.top = new FormAttachment(0, 0); 

			data2.bottom = new FormAttachment(100, 0); 

			data2.left = new FormAttachment(10);

			if (position < table.getNColumn() -1) {

				data2.right = new FormAttachment(table.getColumn(position+1).getTable());

			} else {

				data2.right = new FormAttachment(100);

			}

			sash.setLayoutData(data2);

		}

	}

	public SuperTableColumn getColumn(int i) {

		return columns.get(i);

	}

	public int getNColumn() {

		return columns.size();

	}

}