JAL-3032 adds Java 8 functionality (2/2)

[jalview.git] / src2 / net / miginfocom / layout / CC.java

package net.miginfocom.layout;

import java.io.*;
import java.util.ArrayList;
/*
 * License (BSD):
 * ==============
 *
 * Copyright (c) 2004, Mikael Grev, MiG InfoCom AB. (miglayout (at) miginfocom (dot) com)
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice, this list
 * of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright notice, this
 * list of conditions and the following disclaimer in the documentation and/or other
 * materials provided with the distribution.
 * Neither the name of the MiG InfoCom AB nor the names of its contributors may be
 * used to endorse or promote products derived from this software without specific
 * prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 *
 * @version 1.0
 * @author Mikael Grev, MiG InfoCom AB
 *         Date: 2006-sep-08
 */

/** A simple value holder for one component's constraint.
 */
public final class CC implements Externalizable
{
        private static final BoundSize DEF_GAP = BoundSize.NULL_SIZE;    // Only used to denote default wrap/newline gap.

        static final String[] DOCK_SIDES = {"north", "west", "south", "east"};

        // See the getters and setters for information about the properties below.

        private int dock = -1;

        private UnitValue[] pos = null; // [x1, y1, x2, y2]

        private UnitValue[] padding = null;   // top, left, bottom, right

        private UnitValue[] visualPadding = null;   // top, left, bottom, right

        private Boolean flowX = null;

        private int skip = 0;

        private int split = 1;

        private int spanX = 1, spanY = 1;

        private int cellX = -1, cellY = 0; // If cellX is -1 then cellY is also considered -1. cellY is never negative.

        private String tag = null;

        private String id = null;

        private int hideMode = -1;

        private DimConstraint hor = new DimConstraint();

        private DimConstraint ver = new DimConstraint();

        private BoundSize newline = null;

        private BoundSize wrap = null;

        private boolean boundsInGrid = true;

        private boolean external = false;

        private Float pushX = null, pushY = null;

        private AnimSpec animSpec = AnimSpec.DEF;


        // ***** Tmp cache field

        private static final String[] EMPTY_ARR = new String[0];

        private transient String[] linkTargets = null;

        /** Empty constructor.
         */
        public CC()
        {
        }

        String[] getLinkTargets()
        {
                if (linkTargets == null) {
                        final ArrayList<String> targets = new ArrayList<String>(2);

                        if (pos != null) {
                                for (int i = 0; i < pos.length ; i++)
                                        addLinkTargetIDs(targets, pos[i]);
                        }

                        linkTargets = targets.size() == 0 ? EMPTY_ARR : targets.toArray(new String[targets.size()]);
                }
                return linkTargets;
        }

        private void addLinkTargetIDs(ArrayList<String> targets, UnitValue uv)
        {
                if (uv != null) {
                        String linkId = uv.getLinkTargetId();
                        if (linkId != null) {
                                targets.add(linkId);
                        } else {
                                for (int i = uv.getSubUnitCount() - 1; i >= 0; i--) {
                                        UnitValue subUv = uv.getSubUnitValue(i);
                                        if (subUv.isLinkedDeep())
                                                addLinkTargetIDs(targets, subUv);
                                }
                        }
                }
        }

        // **********************************************************
        // Chaining constraint setters
        // **********************************************************

        /** Specifies that the component should be put in the end group <code>s</code> and will thus share the same ending
         * coordinate as them within the group.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param s A name to associate on the group that should be the same for other rows/columns in the same group.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC endGroupX(String s)
        {
                hor.setEndGroup(s);
                return this;
        }

        /** Specifies that the component should be put in the size group <code>s</code> and will thus share the same size
         * as them within the group.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param s A name to associate on the group that should be the same for other rows/columns in the same group.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC sizeGroupX(String s)
        {
                hor.setSizeGroup(s);
                return this;
        }

        /** The minimum size for the component. The value will override any value that is set on the component itself.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param size The size expressed as a <code>UnitValue</code>. E.g. "100px" or "200mm".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC minWidth(String size)
        {
                hor.setSize(LayoutUtil.derive(hor.getSize(), ConstraintParser.parseUnitValue(size, true), null, null));
                return this;
        }

        /** The size for the component as a min and/or preferred and/or maximum size. The value will override any value that is set on
         * the component itself.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param size The size expressed as a <code>BoundSize</code>. E.g. "50:100px:200mm" or "100px".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC width(String size)
        {
                hor.setSize(ConstraintParser.parseBoundSize(size, false, true));
                return this;
        }

        /** The maximum size for the component. The value will override any value that is set on the component itself.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param size The size expressed as a <code>UnitValue</code>. E.g. "100px" or "200mm".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC maxWidth(String size)
        {
                hor.setSize(LayoutUtil.derive(hor.getSize(), null, null, ConstraintParser.parseUnitValue(size, true)));
                return this;
        }


        /** The horizontal gap before and/or after the component. The gap is towards cell bounds and/or other component bounds.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param before The size of the gap expressed as a <code>BoundSize</code>. E.g. "50:100px:200mm" or "100px!".
         * @param after The size of the gap expressed as a <code>BoundSize</code>. E.g. "50:100px:200mm" or "100px!".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC gapX(String before, String after)
        {
                if (before != null)
                        hor.setGapBefore(ConstraintParser.parseBoundSize(before, true, true));

                if (after != null)
                        hor.setGapAfter(ConstraintParser.parseBoundSize(after, true, true));

                return this;
        }

        /** Same functionality as <code>getHorizontal().setAlign(ConstraintParser.parseUnitValue(unitValue, true))</code> only this method
         * returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param align The align keyword or for instance "100px". E.g "left", "right", "leading" or "trailing".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC alignX(String align)
        {
                hor.setAlign(ConstraintParser.parseUnitValueOrAlign(align, true, null));
                return this;
        }

        /** The grow priority compared to other components in the same cell.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param p The grow priority.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC growPrioX(int p)
        {
                hor.setGrowPriority(p);
                return this;
        }

        /** Grow priority for the component horizontally and optionally vertically.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param widthHeight The new shrink weight and height. 1-2 arguments, never null.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @since 3.7.2
         */
        public final CC growPrio(int ... widthHeight)
        {
                switch (widthHeight.length) {
                        default:
                                throw new IllegalArgumentException("Illegal argument count: " + widthHeight.length);
                        case 2:
                                growPrioY(widthHeight[1]);
                        case 1:
                                growPrioX(widthHeight[0]);
                }
                return this;
        }

        /** Grow weight for the component horizontally. It default to weight <code>100</code>.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #growX(float)
         */
        public final CC growX()
        {
                hor.setGrow(ResizeConstraint.WEIGHT_100);
                return this;
        }

        /** Grow weight for the component horizontally.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param w The new grow weight.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC growX(float w)
        {
                hor.setGrow(new Float(w));
                return this;
        }

        /** grow weight for the component horizontally and optionally vertically.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param widthHeight The new shrink weight and height. 1-2 arguments, never null.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @since 3.7.2
         */
        public final CC grow(float ... widthHeight)
        {
                switch (widthHeight.length) {
                        default:
                                throw new IllegalArgumentException("Illegal argument count: " + widthHeight.length);
                        case 2:
                                growY(widthHeight[1]);
                        case 1:
                                growX(widthHeight[0]);
                }
                return this;
        }

        /** The shrink priority compared to other components in the same cell.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param p The shrink priority.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC shrinkPrioX(int p)
        {
                hor.setShrinkPriority(p);
                return this;
        }

        /** Shrink priority for the component horizontally and optionally vertically.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param widthHeight The new shrink weight and height. 1-2 arguments, never null.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @since 3.7.2
         */
        public final CC shrinkPrio(int ... widthHeight)
        {
                switch (widthHeight.length) {
                        default:
                                throw new IllegalArgumentException("Illegal argument count: " + widthHeight.length);
                        case 2:
                                shrinkPrioY(widthHeight[1]);
                        case 1:
                                shrinkPrioX(widthHeight[0]);
                }
                return this;
        }

        /** Shrink weight for the component horizontally.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param w The new shrink weight.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC shrinkX(float w)
        {
                hor.setShrink(new Float(w));
                return this;
        }

        /** Shrink weight for the component horizontally and optionally vertically.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param widthHeight The new shrink weight and height. 1-2 arguments, never null.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @since 3.7.2
         */
        public final CC shrink(float ... widthHeight)
        {
                switch (widthHeight.length) {
                        default:
                                throw new IllegalArgumentException("Illegal argument count: " + widthHeight.length);
                        case 2:
                                shrinkY(widthHeight[1]);
                        case 1:
                                shrinkX(widthHeight[0]);
                }
                return this;
        }

        /** The end group that this component should be placed in.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param s The name of the group. If <code>null</code> that means no group (default)
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC endGroupY(String s)
        {
                ver.setEndGroup(s);
                return this;
        }

        /** The end group(s) that this component should be placed in.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param xy The end group for x and y respectively. 1-2 arguments, not null.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @since 3.7.2
         */
        public final CC endGroup(String ... xy)
        {
                switch (xy.length) {
                        default:
                                throw new IllegalArgumentException("Illegal argument count: " + xy.length);
                        case 2:
                                endGroupY(xy[1]);
                        case 1:
                                endGroupX(xy[0]);
                }
                return this;
        }

        /** The size group that this component should be placed in.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param s The name of the group. If <code>null</code> that means no group (default)
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC sizeGroupY(String s)
        {
                ver.setSizeGroup(s);
                return this;
        }

        /** The size group(s) that this component should be placed in.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param xy The size group for x and y respectively. 1-2 arguments, not null.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @since 3.7.2
         */
        public final CC sizeGroup(String ... xy)
        {
                switch (xy.length) {
                        default:
                                throw new IllegalArgumentException("Illegal argument count: " + xy.length);
                        case 2:
                                sizeGroupY(xy[1]);
                        case 1:
                                sizeGroupX(xy[0]);
                }
                return this;
        }

        /** The minimum size for the component. The value will override any value that is set on the component itself.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param size The size expressed as a <code>UnitValue</code>. E.g. "100px" or "200mm".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC minHeight(String size)
        {
                ver.setSize(LayoutUtil.derive(ver.getSize(), ConstraintParser.parseUnitValue(size, false), null, null));
                return this;
        }

        /** The size for the component as a min and/or preferred and/or maximum size. The value will override any value that is set on
         * the component itself.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param size The size expressed as a <code>BoundSize</code>. E.g. "50:100px:200mm" or "100px".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC height(String size)
        {
                ver.setSize(ConstraintParser.parseBoundSize(size, false, false));
                return this;
        }

        /** The maximum size for the component. The value will override any value that is set on the component itself.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param size The size expressed as a <code>UnitValue</code>. E.g. "100px" or "200mm".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC maxHeight(String size)
        {
                ver.setSize(LayoutUtil.derive(ver.getSize(), null, null, ConstraintParser.parseUnitValue(size, false)));
                return this;
        }

        /** The vertical gap before (normally above) and/or after (normally below) the component. The gap is towards cell bounds and/or other component bounds.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param before The size of the gap expressed as a <code>BoundSize</code>. E.g. "50:100px:200mm" or "100px!".
         * @param after The size of the gap expressed as a <code>BoundSize</code>. E.g. "50:100px:200mm" or "100px!".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC gapY(String before, String after)
        {
                if (before != null)
                        ver.setGapBefore(ConstraintParser.parseBoundSize(before, true, false));

                if (after != null)
                        ver.setGapAfter(ConstraintParser.parseBoundSize(after, true, false));

                return this;
        }

        /** Same functionality as <code>getVertical().setAlign(ConstraintParser.parseUnitValue(unitValue, true))</code> only this method
         * returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param align The align keyword or for instance "100px". E.g "top" or "bottom".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC alignY(String align)
        {
                ver.setAlign(ConstraintParser.parseUnitValueOrAlign(align, false, null));
                return this;
        }

        /** The grow priority compared to other components in the same cell.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param p The grow priority.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC growPrioY(int p)
        {
                ver.setGrowPriority(p);
                return this;
        }

        /** Grow weight for the component vertically. Defaults to <code>100</code>.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #growY(Float)
         */
        public final CC growY()
        {
                ver.setGrow(ResizeConstraint.WEIGHT_100);
                return this;
        }

        /** Grow weight for the component vertically.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param w The new grow weight.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC growY(float w)
        {
                ver.setGrow(w);
                return this;
        }

        /** Grow weight for the component vertically.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param w The new grow weight.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        @Deprecated
        public final CC growY(Float w)
        {
                ver.setGrow(w);
                return this;
        }

        /** The shrink priority compared to other components in the same cell.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param p The shrink priority.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC shrinkPrioY(int p)
        {
                ver.setShrinkPriority(p);
                return this;
        }

        /** Shrink weight for the component horizontally.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param w The new shrink weight.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC shrinkY(float w)
        {
                ver.setShrink(new Float(w));
                return this;
        }

        /** How this component, if hidden (not visible), should be treated.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param mode The mode. Default to the mode in the {@link net.miginfocom.layout.LC}.
         * 0 == Normal. Bounds will be calculated as if the component was visible.<br>
         * 1 == If hidden the size will be 0, 0 but the gaps remain.<br>
         * 2 == If hidden the size will be 0, 0 and gaps set to zero.<br>
         * 3 == If hidden the component will be disregarded completely and not take up a cell in the grid..
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC hideMode(int mode)
        {
                setHideMode(mode);
                return this;
        }

        /** The id used to reference this component in some constraints.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param s The id or <code>null</code>. May consist of a groupID and an componentID which are separated by a dot: ".". E.g. "grp1.id1".
         * The dot should never be first or last if present.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         */
        public final CC id(String s)
        {
                setId(s);
                return this;
        }

        /** Same functionality as {@link #setTag(String tag)} only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param tag The new tag. May be <code>null</code>.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @see #setTag(String)
         */
        public final CC tag(String tag)
        {
                setTag(tag);
                return this;
        }

        /** Set the cell(s) that the component should occupy in the grid. Same functionality as {@link #setCellX(int col)} and
         * {@link #setCellY(int row)} together with {@link #setSpanX(int width)} and {@link #setSpanY(int height)}. This method
         * returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param colRowWidthHeight cellX, cellY, spanX, spanY respectively. 1-4 arguments, not null.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @see #setCellX(int)
         * @see #setCellY(int)
         * @see #setSpanX(int)
         * @see #setSpanY(int)
         * @since 3.7.2. Replacing cell(int, int) and cell(int, int, int, int)
         */
        public final CC cell(int ... colRowWidthHeight)
        {
                switch (colRowWidthHeight.length) {
                        default:
                                throw new IllegalArgumentException("Illegal argument count: " + colRowWidthHeight.length);
                        case 4:
                                setSpanY(colRowWidthHeight[3]);
                        case 3:
                                setSpanX(colRowWidthHeight[2]);
                        case 2:
                                setCellY(colRowWidthHeight[1]);
                        case 1:
                                setCellX(colRowWidthHeight[0]);
                }
                return this;
        }

        /** Same functionality as <code>spanX(cellsX).spanY(cellsY)</code> which means this cell will span cells in both x and y.
         * This method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * Since 3.7.2 this takes an array/vararg whereas it previously only took two specific values, xSpan and ySpan.
         * @param cells spanX and spanY, when present, and in that order.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @see #setSpanY(int)
         * @see #setSpanX(int)
         * @see #spanY()
         * @see #spanX()
         * @since 3.7.2 Replaces span(int, int).
         */
        public final CC span(int ... cells)
        {
                if (cells == null || cells.length == 0) {
                        setSpanX(LayoutUtil.INF);
                        setSpanY(1);
                } else if (cells.length == 1) {
                        setSpanX(cells[0]);
                        setSpanY(1);
                } else {
                        setSpanX(cells[0]);
                        setSpanY(cells[1]);
                }
                return this;
        }

        /** Corresponds exactly to the "gap left right top bottom" keyword.
         * @param args Same as for the "gap" keyword. Length 1-4, never null buf elements can be null.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @since 3.7.2
         */
        public final CC gap(String ... args)
        {
                switch (args.length) {
                        default:
                                throw new IllegalArgumentException("Illegal argument count: " + args.length);
                        case 4:
                                gapBottom(args[3]);
                        case 3:
                                gapTop(args[2]);
                        case 2:
                                gapRight(args[1]);
                        case 1:
                                gapLeft(args[0]);
                }
                return this;
        }

        /** Sets the horizontal gap before the component.
         * <p>
         * Note! This is currently same as gapLeft(). This might change in 4.x.
         * @param boundsSize The size of the gap expressed as a <code>BoundSize</code>. E.g. "50:100px:200mm" or "100px!".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @since 3.7.2
         */
        public final CC gapBefore(String boundsSize)
        {
                hor.setGapBefore(ConstraintParser.parseBoundSize(boundsSize, true, true));
                return this;
        }

        /** Sets the horizontal gap after the component.
         * <p>
         * Note! This is currently same as gapRight(). This might change in 4.x.
         * @param boundsSize The size of the gap expressed as a <code>BoundSize</code>. E.g. "50:100px:200mm" or "100px!".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @since 3.7.2
         */
        public final CC gapAfter(String boundsSize)
        {
                hor.setGapAfter(ConstraintParser.parseBoundSize(boundsSize, true, true));
                return this;
        }

        /** Sets the gap above the component.
         * @param boundsSize The size of the gap expressed as a <code>BoundSize</code>. E.g. "50:100px:200mm" or "100px!".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @since 3.7.2
         */
        public final CC gapTop(String boundsSize)
        {
                ver.setGapBefore(ConstraintParser.parseBoundSize(boundsSize, true, false));
                return this;
        }

        /** Sets the gap to the left the component.
         * @param boundsSize The size of the gap expressed as a <code>BoundSize</code>. E.g. "50:100px:200mm" or "100px!".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @since 3.7.2
         */
        public final CC gapLeft(String boundsSize)
        {
                hor.setGapBefore(ConstraintParser.parseBoundSize(boundsSize, true, true));
                return this;
        }

        /** Sets the gap below the component.
         * @param boundsSize The size of the gap expressed as a <code>BoundSize</code>. E.g. "50:100px:200mm" or "100px!".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @since 3.7.2
         */
        public final CC gapBottom(String boundsSize)
        {
                ver.setGapAfter(ConstraintParser.parseBoundSize(boundsSize, true, false));
                return this;
        }

        /** Sets the gap to the right of the component.
         * @param boundsSize The size of the gap expressed as a <code>BoundSize</code>. E.g. "50:100px:200mm" or "100px!".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @since 3.7.2
         */
        public final CC gapRight(String boundsSize)
        {
                hor.setGapAfter(ConstraintParser.parseBoundSize(boundsSize, true, true));
                return this;
        }

        /** Same functionality as calling {@link #setSpanY(int)} with <code>LayoutUtil.INF</code> which means this cell will span the rest of the column.
         * This method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @see #setSpanY(int)
         * @see #spanY()
         */
        public final CC spanY()
        {
                return spanY(LayoutUtil.INF);
        }

        /** Same functionality as {@link #setSpanY(int)} only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param cells The number of cells to span (i.e. merge).
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @see #setSpanY(int)
         */
        public final CC spanY(int cells)
        {
                setSpanY(cells);
                return this;
        }

        /** Same functionality as {@link #setSpanX(int)} which means this cell will span the rest of the row.
         * This method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @see #setSpanX(int)
         * @see #spanX()
         */
        public final CC spanX()
        {
                return spanX(LayoutUtil.INF);
        }

        /** Same functionality as {@link #setSpanX(int)} only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param cells The number of cells to span (i.e. merge).
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @see #setSpanY(int)
         */
        public final CC spanX(int cells)
        {
                setSpanX(cells);
                return this;
        }

        /** Same functionality as <code>pushX().pushY()</code> which means this cell will push in both x and y dimensions.
         * This method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @see #setPushX(Float)
         * @see #setPushX(Float)
         * @see #pushY()
         * @see #pushX()
         */
        public final CC push()
        {
                return pushX().pushY();
        }

        /** Same functionality as <code>pushX(weightX).pushY(weightY)</code> which means this cell will push in both x and y dimensions.
         * This method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param weightX The weight used in the push.
         * @param weightY The weight used in the push.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @see #setPushY(Float)
         * @see #setPushX(Float)
         * @see #pushY()
         * @see #pushX()
         */
        public final CC push(Float weightX, Float weightY)
        {
                return pushX(weightX).pushY(weightY);
        }

        /** Same functionality as {@link #setPushY(Float)} which means this cell will push the rest of the column.
         * This method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @see #setPushY(Float)
         */
        public final CC pushY()
        {
                return pushY(ResizeConstraint.WEIGHT_100);
        }

        /** Same functionality as {@link #setPushY(Float weight)} only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param weight The weight used in the push.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @see #setPushY(Float)
         */
        public final CC pushY(Float weight)
        {
                setPushY(weight);
                return this;
        }

        /** Same functionality as {@link #setPushX(Float)} which means this cell will push the rest of the row.
         * This method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @see #setPushX(Float)
         */
        public final CC pushX()
        {
                return pushX(ResizeConstraint.WEIGHT_100);
        }

        /** Same functionality as {@link #setPushX(Float weight)} only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param weight The weight used in the push.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new LayoutConstraint().noGrid().gap().fill()</code>.
         * @see #setPushY(Float)
         */
        public final CC pushX(Float weight)
        {
                setPushX(weight);
                return this;
        }

        /** Same functionality as {@link #setSplit(int parts)} only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param parts The number of parts (i.e. component slots) the cell should be divided into.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setSplit(int)
         */
        public final CC split(int parts)
        {
                setSplit(parts);
                return this;
        }

        /** Same functionality as split(LayoutUtil.INF), which means split until one of the keywords that breaks the split is found for
         * a component after this one (e.g. wrap, newline and skip).
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setSplit(int)
         * @since 3.7.2
         */
        public final CC split()
        {
                setSplit(LayoutUtil.INF);
                return this;
        }

        /** Same functionality as {@link #setSkip(int)} only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param cells How many cells in the grid that should be skipped <b>before</b> the component that this constraint belongs to
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setSkip(int)
         */
        public final CC skip(int cells)
        {
                setSkip(cells);
                return this;
        }

        /** Same functionality as skip(1).
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setSkip(int)
         * @since 3.7.2
         */
        public final CC skip()
        {
                setSkip(1);
                return this;
        }

        /** Same functionality as calling {@link #setExternal(boolean)} with <code>true</code> only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setExternal(boolean)
         */
        public final CC external()
        {
                setExternal(true);
                return this;
        }

        /** Same functionality as calling {@link #setFlowX(Boolean)} with <code>Boolean.TRUE</code> only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setFlowX(Boolean)
         */
        public final CC flowX()
        {
                setFlowX(Boolean.TRUE);
                return this;
        }

        /** Same functionality as calling {@link #setFlowX(Boolean)} with <code>Boolean.FALSE</code> only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setFlowX(Boolean)
         */
        public final CC flowY()
        {
                setFlowX(Boolean.FALSE);
                return this;
        }


        /** Same functionality as {@link #growX()} and {@link #growY()}.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #growX()
         * @see #growY()
         */
        public final CC grow()
        {
                growX();
                growY();
                return this;
        }

        /** Same functionality as calling {@link #setNewline(boolean)} with <code>true</code> only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setNewline(boolean)
         */
        public final CC newline()
        {
                setNewline(true);
                return this;
        }

        /** Same functionality as {@link #setNewlineGapSize(BoundSize)} only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param gapSize The gap size that will override the gap size in the row/column constraints if <code>!= null</code>. E.g. "5px" or "unrel".
         * If <code>null</code> or <code>""</code> the newline size will be set to the default size and turned on. This is different compared to
         * {@link #setNewlineGapSize(BoundSize)}.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setNewlineGapSize(BoundSize)
         */
        public final CC newline(String gapSize)
        {
                BoundSize bs = ConstraintParser.parseBoundSize(gapSize, true, (flowX != null && flowX == false));
                if (bs != null) {
                        setNewlineGapSize(bs);
                } else {
                        setNewline(true);
                }
                return this;
        }

        /** Same functionality as calling {@link #setWrap(boolean)} with <code>true</code> only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setWrap(boolean)
         */
        public final CC wrap()
        {
                setWrap(true);
                return this;
        }

        /** Same functionality as {@link #setWrapGapSize(BoundSize)} only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param gapSize The gap size that will override the gap size in the row/column constraints if <code>!= null</code>. E.g. "5px" or "unrel".
         * If <code>null</code> or <code>""</code> the wrap size will be set to the default size and turned on. This is different compared to
         * {@link #setWrapGapSize(BoundSize)}.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setWrapGapSize(BoundSize)
         */
        public final CC wrap(String gapSize)
        {
                BoundSize bs = ConstraintParser.parseBoundSize(gapSize, true, (flowX != null && flowX == false));
                if (bs != null) {
                        setWrapGapSize(bs);
                } else {
                        setWrap(true);
                }
                return this;
        }

        /** Same functionality as calling {@link #setDockSide(int)} with <code>0</code> only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setDockSide(int)
         */
        public final CC dockNorth()
        {
                setDockSide(0);
                return this;
        }

        /** Same functionality as calling {@link #setDockSide(int)} with <code>1</code> only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setDockSide(int)
         */
        public final CC dockWest()
        {
                setDockSide(1);
                return this;
        }

        /** Same functionality as calling {@link #setDockSide(int)} with <code>2</code> only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setDockSide(int)
         */
        public final CC dockSouth()
        {
                setDockSide(2);
                return this;
        }

        /** Same functionality as calling {@link #setDockSide(int)} with <code>3</code> only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setDockSide(int)
         */
        public final CC dockEast()
        {
                setDockSide(3);
                return this;
        }

        /** Sets the x-coordinate for the component. This is used to set the x coordinate position to a specific value. The component
         * bounds is still precalculated to the grid cell and this method should be seen as a way to correct the x position.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param x The x position as a UnitValue. E.g. "10" or "40mm" or "container.x+10".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setPos(UnitValue[])
         * @see #setBoundsInGrid(boolean)
         */
        public final CC x(String x)
        {
                return corrPos(x, 0);
        }

        /** Sets the y-coordinate for the component. This is used to set the y coordinate position to a specific value. The component
         * bounds is still precalculated to the grid cell and this method should be seen as a way to correct the y position.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param y The y position as a UnitValue. E.g. "10" or "40mm" or "container.x+10".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setPos(UnitValue[])
         * @see #setBoundsInGrid(boolean)
         */
        public final CC y(String y)
        {
                return corrPos(y, 1);
        }

        /** Sets the x2-coordinate for the component (right side). This is used to set the x2 coordinate position to a specific value. The component
         * bounds is still precalculated to the grid cell and this method should be seen as a way to correct the x position.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param x2 The x2 side's position as a UnitValue. E.g. "10" or "40mm" or "container.x2 - 10".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setPos(UnitValue[])
         * @see #setBoundsInGrid(boolean)
         */
        public final CC x2(String x2)
        {
                return corrPos(x2, 2);
        }

        /** Sets the y2-coordinate for the component (bottom side). This is used to set the y2 coordinate position to a specific value. The component
         * bounds is still precalculated to the grid cell and this method should be seen as a way to correct the y position.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param y2 The y2 side's position as a UnitValue. E.g. "10" or "40mm" or "container.x2 - 10".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setPos(UnitValue[])
         * @see #setBoundsInGrid(boolean)
         */
        public final CC y2(String y2)
        {
                return corrPos(y2, 3);
        }

        private final CC corrPos(String uv, int ix)
        {
                UnitValue[] b = getPos();
                if (b == null)
                        b = new UnitValue[4];

                b[ix] = ConstraintParser.parseUnitValue(uv, (ix % 2 == 0));
                setPos(b);

                setBoundsInGrid(true);
                return this;
        }

        /** Same functionality as {@link #x(String x)} and {@link #y(String y)} together.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param x The x position as a UnitValue. E.g. "10" or "40mm" or "container.x+10".
         * @param y The y position as a UnitValue. E.g. "10" or "40mm" or "container.x+10".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setPos(UnitValue[])
         */
        public final CC pos(String x, String y)
        {
                UnitValue[] b = getPos();
                if (b == null)
                        b = new UnitValue[4];

                b[0] = ConstraintParser.parseUnitValue(x, true);
                b[1] = ConstraintParser.parseUnitValue(y, false);
                setPos(b);

                setBoundsInGrid(false);
                return this;
        }

        /** Same functionality as {@link #x(String x)}, {@link #y(String y)}, {@link #y2(String y)} and {@link #y2(String y)} together.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param x The x position as a UnitValue. E.g. "10" or "40mm" or "container.x+10".
         * @param y The y position as a UnitValue. E.g. "10" or "40mm" or "container.x+10".
         * @param x2 The x2 side's position as a UnitValue. E.g. "10" or "40mm" or "container.x2 - 10".
         * @param y2 The y2 side's position as a UnitValue. E.g. "10" or "40mm" or "container.x2 - 10".
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setPos(UnitValue[])
         */
        public final CC pos(String x, String y, String x2, String y2)
        {
                setPos(new UnitValue[] {
                                ConstraintParser.parseUnitValue(x, true),
                                ConstraintParser.parseUnitValue(y, false),
                                ConstraintParser.parseUnitValue(x2, true),
                                ConstraintParser.parseUnitValue(y2, false),
                });
                setBoundsInGrid(false);
                return this;
        }

        /** Same functionality as {@link #setPadding(UnitValue[])} but the unit values as absolute pixels. This method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param top The top padding that will be added to the y coordinate at the last stage in the layout.
         * @param left The top padding that will be added to the x coordinate at the last stage in the layout.
         * @param bottom The top padding that will be added to the y2 coordinate at the last stage in the layout.
         * @param right The top padding that will be added to the x2 coordinate at the last stage in the layout.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setTag(String)
         */
        public final CC pad(int top, int left, int bottom, int right)
        {
                setPadding(new UnitValue[] {
                                new UnitValue(top),     new UnitValue(left), new UnitValue(bottom), new UnitValue(right)
                });
                return this;
        }

        /** Same functionality as <code>setPadding(ConstraintParser.parseInsets(pad, false))}</code> only this method returns <code>this</code> for chaining multiple calls.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param pad The string to parse. E.g. "10 10 10 10" or "20". If less than 4 groups the last will be used for the missing.
         * @return <code>this</code> so it is possible to chain calls. E.g. <code>new ComponentConstraint().noGrid().gap().fill()</code>.
         * @see #setTag(String)
         */
        public final CC pad(String pad)
        {
                setPadding(pad != null ? ConstraintParser.parseInsets(pad, false) : null);
                return this;
        }

        // **********************************************************
        // Bean properties
        // **********************************************************

        /** Returns the horizontal dimension constraint for this component constraint. It has constraints for the horizontal size
         * and grow/shrink priorities and weights.
         * <p>
         * Note! If any changes is to be made it must be made direct when the object is returned. It is not allowed to save the
         * constraint for later use.
         * @return The current dimension constraint. Never <code>null</code>.
         */
        public DimConstraint getHorizontal()
        {
                return hor;
        }

        /** Sets the horizontal dimension constraint for this component constraint. It has constraints for the horizontal size
         * and grow/shrink priorities and weights.
         * @param h The new dimension constraint. If <code>null</code> it will be reset to <code>new DimConstraint();</code>
         */
        public void setHorizontal(DimConstraint h)
        {
                hor = h != null ? h : new DimConstraint();
        }

        /** Returns the vertical dimension constraint for this component constraint. It has constraints for the vertical size
         * and grow/shrink priorities and weights.
         * <p>
         * Note! If any changes is to be made it must be made direct when the object is returned. It is not allowed to save the
         * constraint for later use.
         * @return The current dimension constraint. Never <code>null</code>.
         */
        public DimConstraint getVertical()
        {
                return ver;
        }

        /** Sets the vertical dimension constraint for this component constraint. It has constraints for the vertical size
         * and grow/shrink priorities and weights.
         * @param v The new dimension constraint. If <code>null</code> it will be reset to <code>new DimConstraint();</code>
         */
        public void setVertical(DimConstraint v)
        {
                ver = v != null ? v : new DimConstraint();
        }

        /** Returns the vertical or horizontal dim constraint.
         * <p>
         * Note! If any changes is to be made it must be made direct when the object is returned. It is not allowed to save the
         * constraint for later use.
         * @param isHor If the horizontal constraint should be returned.
         * @return The dim constraint. Never <code>null</code>.
         */
        public DimConstraint getDimConstraint(boolean isHor)
        {
                return isHor ? hor : ver;
        }

        /** Returns the absolute positioning of one or more of the edges. This will be applied last in the layout cycle and will not
         * affect the flow or grid positions. The positioning is relative to the parent and can not (as padding) be used
         * to adjust the edges relative to the old value. May be <code>null</code> and elements may be <code>null</code>.
         * <code>null</code> value(s) for the x2 and y2 will be interpreted as to keep the preferred size and thus the x1
         * and x2 will just absolutely positions the component.
         * <p>
         * Note that {@link #setBoundsInGrid(boolean)} changes the interpretation of this property slightly.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return The current value as a new array, free to modify.
         */
        public UnitValue[] getPos()
        {
                return pos != null ? new UnitValue[] {pos[0], pos[1], pos[2], pos[3]} : null;
        }

        /** Sets absolute positioning of one or more of the edges. This will be applied last in the layout cycle and will not
         * affect the flow or grid positions. The positioning is relative to the parent and can not (as padding) be used
         * to adjust the edges relative to the old value. May be <code>null</code> and elements may be <code>null</code>.
         * <code>null</code> value(s) for the x2 and y2 will be interpreted as to keep the preferred size and thus the x1
         * and x2 will just absolutely positions the component.
         * <p>
         * Note that {@link #setBoundsInGrid(boolean)} changes the interpretation of this property slightly.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param pos <code>UnitValue[] {x, y, x2, y2}</code>. Must be <code>null</code> or of length 4. Elements can be <code>null</code>.
         */
        public void setPos(UnitValue[] pos)
        {
                this.pos = pos != null ? new UnitValue[] {pos[0], pos[1], pos[2], pos[3]} : null;
                linkTargets = null;
        }

        /** Returns if the absolute <code>pos</code> value should be corrections to the component that is in a normal cell. If <code>false</code>
         * the value of <code>pos</code> is truly absolute in that it will not affect the grid or have a default bounds in the grid.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return The current value.
         * @see #getPos()
         */
        public boolean isBoundsInGrid()
        {
                return boundsInGrid;
        }

        /** Sets if the absolute <code>pos</code> value should be corrections to the component that is in a normal cell. If <code>false</code>
         * the value of <code>pos</code> is truly absolute in that it will not affect the grid or have a default bounds in the grid.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param b <code>true</code> for bounds taken from the grid position. <code>false</code> is default.
         * @see #setPos(UnitValue[])
         */
        void setBoundsInGrid(boolean b)
        {
                this.boundsInGrid = b;
        }

        /** Returns the absolute cell position in the grid or <code>-1</code> if cell positioning is not used.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return The current value.
         */
        public int getCellX()
        {
                return cellX;
        }

        /** Set an absolute cell x-position in the grid. If &gt;= 0 this point points to the absolute cell that this constaint's component should occupy.
         * If there's already a component in that cell they will split the cell. The flow will then continue after this cell.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param x The x-position or <code>-1</code> to disable cell positioning.
         */
        public void setCellX(int x)
        {
                cellX = x;
        }

        /** Returns the absolute cell position in the grid or <code>-1</code> if cell positioning is not used.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return The current value.
         */
        public int getCellY()
        {
                return cellX < 0 ? -1 : cellY;
        }

        /** Set an absolute cell x-position in the grid. If &gt;= 0 this point points to the absolute cell that this constaint's component should occupy.
         * If there's already a component in that cell they will split the cell. The flow will then continue after this cell.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param y The y-position or <code>-1</code> to disable cell positioning.
         */
        public void setCellY(int y)
        {
                if (y < 0)
                        cellX = -1;
                cellY = y < 0 ? 0 : y;
        }

        /** Sets the docking side. -1 means no docking.<br>
         * Valid sides are: <code> north = 0, west = 1, south = 2, east = 3</code>.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return The current side.
         */
        public int getDockSide()
        {
                return dock;
        }

        /** Sets the docking side. -1 means no docking.<br>
         * Valid sides are: <code> north = 0, west = 1, south = 2, east = 3</code>.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param side -1 or 0-3.
         */
        public void setDockSide(int side)
        {
                if (side < -1 || side > 3)
                        throw new IllegalArgumentException("Illegal dock side: " + side);
                dock = side;
        }

        /** Returns if this component should have its bounds handled by an external source and not this layout manager.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return The current value.
         */
        public boolean isExternal()
        {
                return external;
        }

        /** If this boolean is true this component is not handled in any way by the layout manager and the component can have its bounds set by an external
         * handler which is normally by the use of some <code>component.setBounds(x, y, width, height)</code> directly (for Swing).
         * <p>
         * The bounds <b>will not</b> affect the minimum and preferred size of the container.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param b <code>true</code> means that the bounds are not changed.
         */
        public void setExternal(boolean b)
        {
                this.external = b;
        }

        /** Returns if the flow in the <b>cell</b> is in the horizontal dimension. Vertical if <code>false</code>. Only the first
         * component is a cell can set the flow.
         * <p>
         * If <code>null</code> the flow direction is inherited by from the {@link net.miginfocom.layout.LC}.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return The current value.
         */
        public Boolean getFlowX()
        {
                return flowX;
        }

        /** Sets if the flow in the <b>cell</b> is in the horizontal dimension. Vertical if <code>false</code>. Only the first
         * component is a cell can set the flow.
         * <p>
         * If <code>null</code> the flow direction is inherited by from the {@link net.miginfocom.layout.LC}.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param b <code>Boolean.TRUE</code> means horizontal flow in the cell.
         */
        public void setFlowX(Boolean b)
        {
                this.flowX = b;
        }

        /** Sets how a component that is hidden (not visible) should be treated by default.
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return The mode:<br>
         * 0 == Normal. Bounds will be calculated as if the component was visible.<br>
         * 1 == If hidden the size will be 0, 0 but the gaps remain.<br>
         * 2 == If hidden the size will be 0, 0 and gaps set to zero.<br>
         * 3 == If hidden the component will be disregarded completely and not take up a cell in the grid..
         */
        public int getHideMode()
        {
                return hideMode;
        }

        /** Sets how a component that is hidden (not visible) should be treated by default.
         * @param mode The mode:<br>
         * 0 == Normal. Bounds will be calculated as if the component was visible.<br>
         * 1 == If hidden the size will be 0, 0 but the gaps remain.<br>
         * 2 == If hidden the size will be 0, 0 and gaps set to zero.<br>
         * 3 == If hidden the component will be disregarded completely and not take up a cell in the grid..
         */
        public void setHideMode(int mode)
        {
                if (mode < -1 || mode > 3)
                        throw new IllegalArgumentException("Wrong hideMode: " + mode);

                hideMode = mode;
        }

        /** Returns the id used to reference this component in some constraints.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return The id or <code>null</code>. May consist of a groupID and an componentID which are separated by a dot: ".". E.g. "grp1.id1".
         * The dot should never be first or last if present.
         */
        public String getId()
        {
                return id;
        }

        /** Sets the id used to reference this component in some constraints.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param id The id or <code>null</code>. May consist of a groupID and an componentID which are separated by a dot: ".". E.g. "grp1.id1".
         * The dot should never be first or last if present.
         */
        public void setId(String id)
        {
                this.id = id;
        }

        /** Returns the absolute resizing in the last stage of the layout cycle. May be <code>null</code> and elements may be <code>null</code>.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return The current value. <code>null</code> or of length 4.
         */
        public UnitValue[] getPadding()
        {
                return padding != null ? new UnitValue[] {padding[0], padding[1], padding[2], padding[3]} : null;
        }

        /** Sets the absolute resizing in the last stage of the layout cycle. These values are added to the edges and can thus for
         * instance be used to grow or reduce the size or move the component an absolute number of pixels. May be <code>null</code>
         * and elements may be <code>null</code>.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param sides top, left, bottom right. Must be <code>null</code> or of length 4.
         */
        public void setPadding(UnitValue[] sides)
        {
                this.padding = sides != null ? new UnitValue[] {sides[0], sides[1], sides[2], sides[3]} : null;
        }

        /** Returns the visual padding used when laying out this Component. May be <code>null</code> and elements may be <code>null</code>.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return The current value. <code>null</code> or of length 4.
         */
        public UnitValue[] getVisualPadding()
        {
                return visualPadding != null ? new UnitValue[] {visualPadding[0], visualPadding[1], visualPadding[2], visualPadding[3]} : null;
        }

        /** Sets the visual padding used when laying out this Component.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param sides top, left, bottom right. Must be <code>null</code> or of length 4.
         */
        public void setVisualPadding(UnitValue[] sides)
        {
                this.visualPadding = sides != null ? new UnitValue[] {sides[0], sides[1], sides[2], sides[3]} : null;
        }

        /** Returns how many cells in the grid that should be skipped <b>before</b> the component that this constraint belongs to.
         * <p>
         * Note that only the first component will be checked for this property.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return The current value. 0 if no skip.
         */
        public int getSkip()
        {
                return skip;
        }

        /** Sets how many cells in the grid that should be skipped <b>before</b> the component that this constraint belongs to.
         * <p>
         * Note that only the first component will be checked for this property.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param cells How many cells in the grid that should be skipped <b>before</b> the component that this constraint belongs to
         */
        public void setSkip(int cells)
        {
                this.skip = cells;
        }

        /** Returns the number of cells the cell that this constraint's component will span in the indicated dimension. <code>1</code> is default and
         * means that it only spans the current cell. <code>LayoutUtil.INF</code> is used to indicate a span to the end of the column/row.
         * <p>
         * Note that only the first component will be checked for this property.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return The current value.
         */
        public int getSpanX()
        {
                return spanX;
        }

        /** Sets the number of cells the cell that this constraint's component will span in the indicated dimension. <code>1</code> is default and
         * means that it only spans the current cell. <code>LayoutUtil.INF</code> is used to indicate a span to the end of the column/row.
         * <p>
         * Note that only the first component will be checked for this property.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param cells The number of cells to span (i.e. merge).
         */
        public void setSpanX(int cells)
        {
                this.spanX = cells;
        }

        /** Returns the number of cells the cell that this constraint's component will span in the indicated dimension. <code>1</code> is default and
         * means that it only spans the current cell. <code>LayoutUtil.INF</code> is used to indicate a span to the end of the column/row.
         * <p>
         * Note that only the first component will be checked for this property.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return The current value.
         */
        public int getSpanY()
        {
                return spanY;
        }

        /** Sets the number of cells the cell that this constraint's component will span in the indicated dimension. <code>1</code> is default and
         * means that it only spans the current cell. <code>LayoutUtil.INF</code> is used to indicate a span to the end of the column/row.
         * <p>
         * Note that only the first component will be checked for this property.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param cells The number of cells to span (i.e. merge).
         */
        public void setSpanY(int cells)
        {
                this.spanY = cells;
        }

        /** "pushx" indicates that the column that this component is in (this first if the component spans) should default to growing.
         * If any other column has been set to grow this push value on the component does nothing as the column's explicit grow weight
         * will take precedence. Push is normally used when the grid has not been defined in the layout.
         * <p>
         * If multiple components in a column has push weights set the largest one will be used for the column.
         * @return The current push value. Default is <code>null</code>.
         */
        public Float getPushX()
        {
                return pushX;
        }

        /** "pushx" indicates that the column that this component is in (this first if the component spans) should default to growing.
         * If any other column has been set to grow this push value on the component does nothing as the column's explicit grow weight
         * will take precedence. Push is normally used when the grid has not been defined in the layout.
         * <p>
         * If multiple components in a column has push weights set the largest one will be used for the column.
         * @param weight The new push value. Default is <code>null</code>.
         */
        public void setPushX(Float weight)
        {
                this.pushX = weight;
        }

        /** "pushx" indicates that the row that this component is in (this first if the component spans) should default to growing.
         * If any other row has been set to grow this push value on the component does nothing as the row's explicit grow weight
         * will take precedence. Push is normally used when the grid has not been defined in the layout.
         * <p>
         * If multiple components in a row has push weights set the largest one will be used for the row.
         * @return The current push value. Default is <code>null</code>.
         */
        public Float getPushY()
        {
                return pushY;
        }

        /** "pushx" indicates that the row that this component is in (this first if the component spans) should default to growing.
         * If any other row has been set to grow this push value on the component does nothing as the row's explicit grow weight
         * will take precedence. Push is normally used when the grid has not been defined in the layout.
         * <p>
         * If multiple components in a row has push weights set the largest one will be used for the row.
         * @param weight The new push value. Default is <code>null</code>.
         */
        public void setPushY(Float weight)
        {
                this.pushY = weight;
        }

        /** Returns in how many parts the current cell (that this constraint's component will be in) should be split in. If for instance
         * it is split in two, the next component will also share the same cell. Note that the cell can also span a number of
         * cells, which means that you can for instance span three cells and split that big cell for two components. Split can be
         * set to a very high value to make all components in the same row/column share the same cell (e.g. <code>LayoutUtil.INF</code>).
         * <p>
         * Note that only the first component will be checked for this property.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return The current value.
         */
        public int getSplit()
        {
                return split;
        }

        /** Sets in how many parts the current cell (that this constraint's component will be in) should be split in. If for instance
         * it is split in two, the next component will also share the same cell. Note that the cell can also span a number of
         * cells, which means that you can for instance span three cells and split that big cell for two components. Split can be
         * set to a very high value to make all components in the same row/column share the same cell (e.g. <code>LayoutUtil.INF</code>).
         * <p>
         * Note that only the first component will be checked for this property.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param parts The number of parts (i.e. component slots) the cell should be divided into.
         */
        public void setSplit(int parts)
        {
                this.split = parts;
        }

        /** Tags the component with metadata. Currently only used to tag buttons with for instance "cancel" or "ok" to make them
         * show up in the correct order depending on platform. See {@link PlatformDefaults#setButtonOrder(String)} for information.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return The current value. May be <code>null</code>.
         */
        public String getTag()
        {
                return tag;
        }

        /** Optional tag that gives more context to this constraint's component. It is for instance used to tag buttons in a
         * button bar with the button type such as "ok", "help" or "cancel".
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param tag The new tag. May be <code>null</code>.
         */
        public void setTag(String tag)
        {
                this.tag = tag;
        }

        /** Returns if the flow should wrap to the next line/column <b>after</b> the component that this constraint belongs to.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return The current value.
         */
        public boolean isWrap()
        {
                return wrap != null;
        }

        /** Sets if the flow should wrap to the next line/column <b>after</b> the component that this constraint belongs to.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param b <code>true</code> means wrap after.
         */
        public void setWrap(boolean b)
        {
                wrap = b ? (wrap == null ? DEF_GAP : wrap) : null;
        }

        /** Returns the wrap size if it is a custom size. If wrap was set to true with {@link #setWrap(boolean)} then this method will
         * return <code>null</code> since that means that the gap size should be the default one as defined in the rows spec.
         * @return The custom gap size. NOTE! Will return <code>null</code> for both no wrap <b>and</b> default wrap.
         * @see #isWrap()
         * @see #setWrap(boolean)
         * @since 2.4.2
         */
        public BoundSize getWrapGapSize()
        {
                return wrap == DEF_GAP ? null : wrap;
        }

        /** Set the wrap size and turns wrap on if <code>!= null</code>.
         * @param s The custom gap size. NOTE! <code>null</code> will not turn on or off wrap, it will only set the wrap gap size to "default".
         * A non-null value will turn on wrap though.
         * @see #isWrap()
         * @see #setWrap(boolean)
         * @since 2.4.2
         */
        public void setWrapGapSize(BoundSize s)
        {
                wrap = s == null ? (wrap != null ? DEF_GAP : null) : s;
        }

        /** Returns if the flow should wrap to the next line/column <b>before</b> the component that this constraint belongs to.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @return The current value.
         */
        public boolean isNewline()
        {
                return newline != null;
        }

        /** Sets if the flow should wrap to the next line/column <b>before</b> the component that this constraint belongs to.
         * <p>
         * For a more thorough explanation of what this constraint does see the white paper or cheat Sheet at www.migcomponents.com.
         * @param b <code>true</code> means wrap before.
         */
        public void setNewline(boolean b)
        {
                newline = b ? (newline == null ? DEF_GAP : newline) : null;
        }

        /** Returns the newline size if it is a custom size. If newline was set to true with {@link #setNewline(boolean)} then this method will
         * return <code>null</code> since that means that the gap size should be the default one as defined in the rows spec.
         * @return The custom gap size. NOTE! Will return <code>null</code> for both no newline <b>and</b> default newline.
         * @see #isNewline()
         * @see #setNewline(boolean)
         * @since 2.4.2
         */
        public BoundSize getNewlineGapSize()
        {
                return newline == DEF_GAP ? null : newline;
        }

        /** Set the newline size and turns newline on if <code>!= null</code>.
         * @param s The custom gap size. NOTE! <code>null</code> will not turn on or off newline, it will only set the newline gap size to "default".
         * A non-null value will turn on newline though.
         * @see #isNewline()
         * @see #setNewline(boolean)
         * @since 2.4.2
         */
        public void setNewlineGapSize(BoundSize s)
        {
                newline = s == null ? (newline != null ? DEF_GAP : null) : s;
        }

        /** Returns the animation spec. Default is a spec where animation is off (prio 0).
         * @return Never null.
         */
        public AnimSpec getAnimSpec()
        {
                return animSpec;
        }


        // ************************************************
        // Persistence Delegate and Serializable combined.
        // ************************************************

        private Object readResolve() throws ObjectStreamException
        {
                return LayoutUtil.getSerializedObject(this);
        }

        @Override
        public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException
        {
                LayoutUtil.setSerializedObject(this, LayoutUtil.readAsXML(in));
        }

        @Override
        public void writeExternal(ObjectOutput out) throws IOException
        {
                if (getClass() == CC.class)
                        LayoutUtil.writeAsXML(out, this);
        }
}