19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package javax.swing;
  26 
  27 import java.awt.Component;
  28 import java.awt.Container;
  29 import java.awt.Dimension;
  30 import java.awt.FontMetrics;
  31 import java.awt.Insets;
  32 import java.awt.LayoutManager2;
  33 import java.awt.Rectangle;
  34 import java.util.*;
  35 
  36 /**
  37  * A <code>SpringLayout</code> lays out the children of its associated container
  38  * according to a set of constraints.
  39  * See <a href="http://java.sun.com/docs/books/tutorial/uiswing/layout/spring.html">How to Use SpringLayout</a>
  40  * in <em>The Java Tutorial</em> for examples of using
  41  * <code>SpringLayout</code>.
  42  *
  43  * <p>
  44  * Each constraint,
  45  * represented by a <code>Spring</code> object,
  46  * controls the vertical or horizontal distance
  47  * between two component edges.
  48  * The edges can belong to
  49  * any child of the container,
  50  * or to the container itself.
  51  * For example,
  52  * the allowable width of a component
  53  * can be expressed using a constraint
  54  * that controls the distance between the west (left) and east (right)
  55  * edges of the component.
  56  * The allowable <em>y</em> coordinates for a component
  57  * can be expressed by constraining the distance between
  58  * the north (top) edge of the component
  59  * and the north edge of its container.

  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package javax.swing;
  26 
  27 import java.awt.Component;
  28 import java.awt.Container;
  29 import java.awt.Dimension;
  30 import java.awt.FontMetrics;
  31 import java.awt.Insets;
  32 import java.awt.LayoutManager2;
  33 import java.awt.Rectangle;
  34 import java.util.*;
  35 
  36 /**
  37  * A <code>SpringLayout</code> lays out the children of its associated container
  38  * according to a set of constraints.
  39  * See <a href="http://docs.oracle.com/javase/tutorial/uiswing/layout/spring.html">How to Use SpringLayout</a>
  40  * in <em>The Java Tutorial</em> for examples of using
  41  * <code>SpringLayout</code>.
  42  *
  43  * <p>
  44  * Each constraint,
  45  * represented by a <code>Spring</code> object,
  46  * controls the vertical or horizontal distance
  47  * between two component edges.
  48  * The edges can belong to
  49  * any child of the container,
  50  * or to the container itself.
  51  * For example,
  52  * the allowable width of a component
  53  * can be expressed using a constraint
  54  * that controls the distance between the west (left) and east (right)
  55  * edges of the component.
  56  * The allowable <em>y</em> coordinates for a component
  57  * can be expressed by constraining the distance between
  58  * the north (top) edge of the component
  59  * and the north edge of its container.