DropShadowButtonBorder.java

/*******************************************************************************
 * Copyright (c) 2000, 2005 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.gef.internal.ui.palette.editparts;

import org.eclipse.swt.custom.ViewForm;
import org.eclipse.swt.graphics.Color;

import org.eclipse.draw2d.AbstractBorder;
import org.eclipse.draw2d.ButtonModel;
import org.eclipse.draw2d.Clickable;
import org.eclipse.draw2d.ColorConstants;
import org.eclipse.draw2d.Graphics;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.geometry.Insets;
import org.eclipse.draw2d.geometry.Rectangle;

class DropShadowButtonBorder 
	extends AbstractBorder
{

protected Insets insets = new Insets(1, 1, 3, 3);

private static final Color
	highlight   = ColorConstants.menuBackgroundSelected,
	dropshadow2 = new Color(null, ViewForm.borderMiddleRGB),
	dropshadow3 = new Color(null, ViewForm.borderOutsideRGB);

/**
 * Returns the space used by the border for the 
 * figure provided as input. In this border all 
 * sides always have equal width.
 *
 * @param figure  Figure for which this is the border.
 * @return  Insets for this border.
 */
public Insets getInsets(IFigure figure) {
	return insets;
}

public boolean isOpaque() {
	return true;
}

public void paint(IFigure figure, Graphics g, Insets insets) {
	ButtonModel model = ((Clickable)figure).getModel();
	Rectangle r = getPaintRectangle(figure, insets);
	g.setLineWidth(1);
	r.width  -= 3;
	r.height -= 3;

	if (model.isMouseOver() && !model.isArmed()) {
		g.setForegroundColor(highlight);
		g.drawRectangle(r);
	
		r.translate(1, 1);
		g.setForegroundColor(dropshadow2);
		g.drawLine(r.x      , r.bottom(), r.right(), r.bottom());
		g.drawLine(r.right(), r.y       , r.right(), r.bottom());
	
		r.translate(1, 1);
		g.setForegroundColor(dropshadow3);
		g.drawLine(r.x + 1, r.bottom(), r.right() - 1, r.bottom());
		g.drawLine(r.right(), r.y + 1, r.right(), r.bottom() - 1);
	} else if (model.isPressed()) {
		r.translate(1, 1);
	
		g.setForegroundColor(highlight);
		g.drawRectangle(r);
	
		r.translate(1, 1);
		g.setForegroundColor(dropshadow2);
		g.drawLine(r.x, r.bottom(), r.right(), r.bottom());
		g.drawLine(r.right(), r.y, r.right(), r.bottom());
	} else {
		r.translate(1, 1);
	
		g.setForegroundColor(dropshadow3);
		g.drawRectangle(r);
	
		r.translate(1, 1);
		g.drawLine(r.x      , r.bottom(), r.right(), r.bottom());
		g.drawLine(r.right(), r.y       , r.right(), r.bottom());
	}

}

}