/*
 * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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package java.awt;

/**
 * The {@code GridBagLayoutInfo} is an utility class for
 * {@code GridBagLayout} layout manager.
 * It stores align, size and baseline parameters for every component within a container.
 * <p>
 * @see java.awt.GridBagLayout
 * @see java.awt.GridBagConstraints
 * @since 1.6
 */
public class GridBagLayoutInfo implements java.io.Serializable {
 /*
 * serialVersionUID
 */
 private static final long serialVersionUID = -4899416460737170217L;

 int width, height; /* number of cells: horizontal and vertical */
 int startx, starty; /* starting point for layout */
 int minWidth[]; /* largest minWidth in each column */
 int minHeight[]; /* largest minHeight in each row */
 double weightX[]; /* largest weight in each column */
 double weightY[]; /* largest weight in each row */
 boolean hasBaseline; /* Whether or not baseline layout has been
 * requested and one of the components
 * has a valid baseline. */
 // These are only valid if hasBaseline is true and are indexed by
 // row.
 short baselineType[]; /* The type of baseline for a particular
 * row. A mix of the BaselineResizeBehavior
 * constants (1 << ordinal()) */
 int maxAscent[]; /* Max ascent (baseline). */
 int maxDescent[]; /* Max descent (height - baseline) */

 /**
 * Creates an instance of GridBagLayoutInfo representing {@code GridBagLayout}
 * grid cells with it's own parameters.
 * @param width the columns
 * @param height the rows
 * @since 6.0
 */
 GridBagLayoutInfo(int width, int height) {
 this.width = width;
 this.height = height;
 }

 /**
 * Returns true if the specified row has any component aligned on the
 * baseline with a baseline resize behavior of CONSTANT_DESCENT.
 */
 boolean hasConstantDescent(int row) {
 return ((baselineType[row] & (1 << Component.BaselineResizeBehavior.
 CONSTANT_DESCENT.ordinal())) != 0);
 }

 /**
 * Returns true if there is a baseline for the specified row.
 */
 boolean hasBaseline(int row) {
 return (hasBaseline && baselineType[row] != 0);
 }
}