BezierOutlineHandle.java example

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/*******************************************************************************
 * Copyright (c) 2006-2012
 * Software Technology Group, Dresden University of Technology
 * DevBoost GmbH, Berlin, Amtsgericht Charlottenburg, HRB 140026
 * 
 * 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:
 *   Software Technology Group - TU Dresden, Germany;
 *   DevBoost GmbH - Berlin, Germany
 *      - initial API and implementation
 ******************************************************************************/
/*
 * @(#)BezierOutlineHandle.java  3.0  2008-05-22
 *
 * Copyright (c) 2007-2008 by the original authors of JHotDraw
 * and all its contributors.
 * All rights reserved.
 *
 * The copyright of this software is owned by the authors and  
 * contributors of the JHotDraw project ("the copyright holders").  
 * You may not use, copy or modify this software, except in  
 * accordance with the license agreement you entered into with  
 * the copyright holders. For details see accompanying license terms. 
 */
package org.jhotdraw.draw;

import java.awt.*;

/**
 * Draws the outlines of a BezierFigure to make adjustment easier.
 *
 * @author Werner Randelshofer
 * @version 2008-05-22 Handle can be used to mark figure over which mouse is
 * hovering.
 * <br>2008-05-11 Handle attributes are now retrieved from
 * DrawingEditor. 
 * <br>1.1 2008-04-12 Improve visibility of the outline, by drawing it
 * using two differently colored strokes. 
 * <br>1.0 April 14, 2007 Created.
 */
public class BezierOutlineHandle extends AbstractHandle {

    /**
     * Set this to true, if the handle is used for marking a figure over
     * which the mouse pointer is hovering.
     */
    private boolean isHoverHandle = false;

    /** Creates a new instance. */
    public BezierOutlineHandle(BezierFigure owner) {
        this(owner, false);
    }

    public BezierOutlineHandle(BezierFigure owner, boolean isHoverHandle) {
        super(owner);
        this.isHoverHandle = isHoverHandle;
    }

    public BezierFigure getOwner() {
        return (BezierFigure) super.getOwner();
    }

    protected Rectangle basicGetBounds() {
        return view.drawingToView(getOwner().getDrawingArea());
    }

    @Override
    public boolean contains(Point p) {
        return false;
    }

    public void trackStart(Point anchor, int modifiersEx) {
    }

    public void trackStep(Point anchor, Point lead, int modifiersEx) {
    }

    public void trackEnd(Point anchor, Point lead, int modifiersEx) {
    }

    @Override
    public void draw(Graphics2D g) {
        Shape bounds = getOwner().getBezierPath();
        if (AttributeKeys.TRANSFORM.get(getOwner()) != null) {
            bounds = AttributeKeys.TRANSFORM.get(getOwner()).createTransformedShape(bounds);
        }
        bounds = view.getDrawingToViewTransform().createTransformedShape(bounds);
        Stroke stroke1;
        Color strokeColor1;
        Stroke stroke2;
        Color strokeColor2;
        if (getEditor().getTool().supportsHandleInteraction()) {
            if (isHoverHandle) {
                stroke1 = (Stroke) getEditor().getHandleAttribute(HandleAttributeKeys.BEZIER_PATH_STROKE_1_HOVER);
                strokeColor1 = (Color) getEditor().getHandleAttribute(HandleAttributeKeys.BEZIER_PATH_COLOR_1_HOVER);
                stroke2 = (Stroke) getEditor().getHandleAttribute(HandleAttributeKeys.BEZIER_PATH_STROKE_2_HOVER);
                strokeColor2 = (Color) getEditor().getHandleAttribute(HandleAttributeKeys.BEZIER_PATH_COLOR_2_HOVER);
            } else {
                stroke1 = (Stroke) getEditor().getHandleAttribute(HandleAttributeKeys.BEZIER_PATH_STROKE_1);
                strokeColor1 = (Color) getEditor().getHandleAttribute(HandleAttributeKeys.BEZIER_PATH_COLOR_1);
                stroke2 = (Stroke) getEditor().getHandleAttribute(HandleAttributeKeys.BEZIER_PATH_STROKE_2);
                strokeColor2 = (Color) getEditor().getHandleAttribute(HandleAttributeKeys.BEZIER_PATH_COLOR_2);
            }
        } else {
            stroke1 = (Stroke) getEditor().getHandleAttribute(HandleAttributeKeys.BEZIER_PATH_STROKE_1_DISABLED);
            strokeColor1 = (Color) getEditor().getHandleAttribute(HandleAttributeKeys.BEZIER_PATH_COLOR_1_DISABLED);
            stroke2 = (Stroke) getEditor().getHandleAttribute(HandleAttributeKeys.BEZIER_PATH_STROKE_2_DISABLED);
            strokeColor2 = (Color) getEditor().getHandleAttribute(HandleAttributeKeys.BEZIER_PATH_COLOR_2_DISABLED);
        }
        if (stroke1 != null && strokeColor1 != null) {
            g.setStroke(stroke1);
            g.setColor(strokeColor1);
            g.draw(bounds);
        }
        if (stroke2 != null && strokeColor2 != null) {
            g.setStroke(stroke2);
            g.setColor(strokeColor2);
            g.draw(bounds);
        }
    }
}