- * This class is a simple value container and it is immutable. - *
- * If a size is missing (i.e., null) that boundary should be considered "not in use".
- *
- * You can create a BoundSize from a String with the use of {@link ConstraintParser#parseBoundSize(String, boolean, boolean)}
- */
-public class BoundSize implements Serializable
-{
- public static final BoundSize NULL_SIZE = new BoundSize(null, null);
- public static final BoundSize ZERO_PIXEL = new BoundSize(UnitValue.ZERO, "0px");
-
- private final transient UnitValue min;
- private final transient UnitValue pref;
- private final transient UnitValue max;
- private final transient boolean gapPush;
-
- /** Constructor that use the same value for min/preferred/max size.
- * @param minMaxPref The value to use for min/preferred/max size.
- * @param createString The string used to create the BoundsSize.
- */
- public BoundSize(UnitValue minMaxPref, String createString)
- {
- this(minMaxPref, minMaxPref, minMaxPref, createString);
- }
-
- /** Constructor. This method is here for serialization only and should normally not be used. Use
- * {@link ConstraintParser#parseBoundSize(String, boolean, boolean)} instead.
- * @param min The minimum size. May be null.
- * @param preferred The preferred size. May be null.
- * @param max The maximum size. May be null.
- * @param createString The string used to create the BoundsSize.
- */
- public BoundSize(UnitValue min, UnitValue preferred, UnitValue max, String createString) // Bound to old delegate!!!!!
- {
- this(min, preferred, max, false, createString);
- }
-
- /** Constructor. This method is here for serialization only and should normally not be used. Use
- * {@link ConstraintParser#parseBoundSize(String, boolean, boolean)} instead.
- * @param min The minimum size. May be null.
- * @param preferred The preferred size. May be null.
- * @param max The maximum size. May be null.
- * @param gapPush If the size should be hinted as "pushing" and thus want to occupy free space if no one else is claiming it.
- * @param createString The string used to create the BoundsSize.
- */
- public BoundSize(UnitValue min, UnitValue preferred, UnitValue max, boolean gapPush, String createString)
- {
- this.min = min;
- this.pref = preferred;
- this.max = max;
- this.gapPush = gapPush;
-
- LayoutUtil.putCCString(this, createString); // this escapes!!
- }
-
- /** Returns the minimum size as sent into the constructor.
- * @return The minimum size as sent into the constructor. May be null.
- */
- public final UnitValue getMin()
- {
- return min;
- }
-
- /** Returns the preferred size as sent into the constructor.
- * @return The preferred size as sent into the constructor. May be null.
- */
- public final UnitValue getPreferred()
- {
- return pref;
- }
-
- /** Returns the maximum size as sent into the constructor.
- * @return The maximum size as sent into the constructor. May be null.
- */
- public final UnitValue getMax()
- {
- return max;
- }
-
- /** If the size should be hinted as "pushing" and thus want to occupy free space if no one else is claiming it.
- * @return The value.
- */
- public boolean getGapPush()
- {
- return gapPush;
- }
-
- /** Returns if this bound size has no min, preferred and maximum size set (they are all null)
- * @return If unset.
- */
- public boolean isUnset()
- {
- // Most common case by far is this == ZERO_PIXEL...
- return this == ZERO_PIXEL || (pref == null && min == null && max == null && gapPush == false);
- }
-
- /** Makes sure that size is within min and max of this size.
- * @param size The size to constrain.
- * @param refValue The reference to use for relative sizes.
- * @param parent The parent container.
- * @return The size, constrained within min and max.
- */
- public int constrain(int size, float refValue, ContainerWrapper parent)
- {
- if (max != null)
- size = Math.min(size, max.getPixels(refValue, parent, parent));
- if (min != null)
- size = Math.max(size, min.getPixels(refValue, parent, parent));
- return size;
- }
-
- /** Returns the minimum, preferred or maximum size for this bounded size.
- * @param sizeType The type. LayoutUtil.MIN, LayoutUtil.PREF or LayoutUtil.MAX.
- * @return
- */
- final UnitValue getSize(int sizeType)
- {
- switch(sizeType) {
- case LayoutUtil.MIN:
- return min;
- case LayoutUtil.PREF:
- return pref;
- case LayoutUtil.MAX:
- return max;
- default:
- throw new IllegalArgumentException("Unknown size: " + sizeType);
- }
- }
-
- /** Convert the bound sizes to pixels.
- *
- * null bound sizes will be 0 for min and preferred and {@link net.miginfocom.layout.LayoutUtil#INF} for max.
- * @param refSize The reference size.
- * @param parent The parent. Not null.
- * @param comp The component, if applicable, can be null.
- * @return An array of length three (min,pref,max).
- */
- final int[] getPixelSizes(float refSize, ContainerWrapper parent, ComponentWrapper comp)
- {
- return new int[] {
- min != null ? min.getPixels(refSize, parent, comp) : 0,
- pref != null ? pref.getPixels(refSize, parent, comp) : 0,
- max != null ? max.getPixels(refSize, parent, comp) : LayoutUtil.INF
- };
- }
-
- /** Returns the a constraint string that can be re-parsed to be the exact same UnitValue.
- * @return A String. Never null.
- */
- String getConstraintString()
- {
- String cs = LayoutUtil.getCCString(this);
- if (cs != null)
- return cs;
-
- if (min == pref && pref == max)
- return min != null ? (min.getConstraintString() + "!") : "null";
-
- StringBuilder sb = new StringBuilder(16);
-
- if (min != null)
- sb.append(min.getConstraintString()).append(':');
-
- if (pref != null) {
- if (min == null && max != null)
- sb.append(":");
- sb.append(pref.getConstraintString());
- } else if (min != null) {
- sb.append('n');
- }
-
- if (max != null)
- sb.append(sb.length() == 0 ? "::" : ":").append(max.getConstraintString());
-
- if (gapPush) {
- if (sb.length() > 0)
- sb.append(':');
- sb.append("push");
- }
-
- return sb.toString();
- }
-
- void checkNotLinked()
- {
- if (isLinked())
- throw new IllegalArgumentException("Size may not contain links");
- }
-
- boolean isLinked()
- {
- return min != null && min.isLinkedDeep() || pref != null && pref.isLinkedDeep() || max != null && max.isLinkedDeep();
- }
-
- boolean isAbsolute()
- {
- return (min == null || min.isAbsoluteDeep()) && (pref == null || pref.isAbsoluteDeep()) && (max == null || max.isAbsoluteDeep());
- }
-
- public String toString()
- {
- return "BoundSize{" + "min=" + min + ", pref=" + pref + ", max=" + max + ", gapPush=" + gapPush +'}';
- }
-
- static {
-// if(LayoutUtil.HAS_BEANS){
-// LayoutUtil.setDelegate(BoundSize.class, new PersistenceDelegate() {
-// @Override
-// protected Expression instantiate(Object oldInstance, Encoder out)
-// {
-// BoundSize bs = (BoundSize) oldInstance;
-// if (Grid.TEST_GAPS) {
-// return new Expression(oldInstance, BoundSize.class, "new", new Object[] {
-// bs.getMin(), bs.getPreferred(), bs.getMax(), bs.getGapPush(), bs.getConstraintString()
-// });
-// } else {
-// return new Expression(oldInstance, BoundSize.class, "new", new Object[] {
-// bs.getMin(), bs.getPreferred(), bs.getMax(), bs.getConstraintString()
-// });
-// }
-// }
-// });
-// }
- }
-
- // ************************************************
- // Persistence Delegate and Serializable combined.
- // ************************************************
-
- private static final long serialVersionUID = 1L;
-
- protected Object readResolve() throws ObjectStreamException
- {
- return LayoutUtil.getSerializedObject(this);
- }
-
- private void writeObject(ObjectOutputStream out) throws IOException
- {
- if (getClass() == BoundSize.class)
- LayoutUtil.writeAsXML(out, this);
- }
-
- private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException
- {
- LayoutUtil.setSerializedObject(this, LayoutUtil.readAsXML(in));
- }
-}