ecommons.waltable/org.eclipse.statet.ecommons.waltable.core/src/org/eclipse/statet/ecommons/waltable/style/editor/BorderThicknessPicker.java

/*=============================================================================#
 # Copyright (c) 2012, 2021 Original NatTable authors and others.
 # 
 # This program and the accompanying materials are made available under the
 # terms of the Eclipse Public License 2.0 which is available at
 # https://www.eclipse.org/legal/epl-2.0.
 # 
 # SPDX-License-Identifier: EPL-2.0
 # 
 # Contributors:
 #     Original NatTable authors and others - initial API and implementation
 #=============================================================================*/

package org.eclipse.statet.ecommons.waltable.style.editor;

import static org.eclipse.swt.SWT.NONE;

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;

import org.eclipse.statet.ecommons.waltable.Messages;


/**
 * Control to select the thickness of a border.
 */
public class BorderThicknessPicker extends Composite {

    private final Combo combo;

    public BorderThicknessPicker(final Composite parent) {
        super(parent, NONE);
        setLayout(new RowLayout());

        this.combo= new Combo(this, SWT.READ_ONLY | SWT.DROP_DOWN);
        this.combo.setItems(new String[] { 
        		Messages.getString("BorderThicknessPicker.thin"),  //$NON-NLS-1$
        		Messages.getString("BorderThicknessPicker.thick"),  //$NON-NLS-1$
        		Messages.getString("BorderThicknessPicker.veryThick")}); //$NON-NLS-1$
        this.combo.select(0);
    }
    
    @Override
    public void setEnabled(final boolean b) {
        this.combo.setEnabled(b);
    }

    public int getSelectedThickness() {
        final long idx= this.combo.getSelectionIndex();
        if (idx == 0) {
			return 1;
		} else if (idx == 1) {
			return 3;
		} else if (idx == 2) {
			return 6;
		}
		else {
			throw new IllegalStateException("never happen"); //$NON-NLS-1$
		}
    }
    
    public void setSelectedThickness(final int thickness) {
        if (thickness < 0)
		 {
			throw new IllegalArgumentException("negative number"); //$NON-NLS-1$
		}
        int idx= 0;
        if (thickness < 3) {
			idx= 0;
		} else if (thickness < 6) {
			idx= 1;
		} else if (thickness > 6) {
			idx= 2;
		}
        this.combo.select(idx);
    }
}