📄 sizerequirements.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Thu Apr 27 23:39:53 PDT 2000 --><TITLE>Java 2 Platform SE v1.3: Class SizeRequirements</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/SizeRequirements.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-files/index-1.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM><b>Java<sup><font size=-2>TM</font></sup> 2 Platform<br>Std. Ed. v1.3</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../javax/swing/ScrollPaneLayout.UIResource.html"><B>PREV CLASS</B></A> <A HREF="../../javax/swing/SizeSequence.html"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="SizeRequirements.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">javax.swing</FONT><BR>Class SizeRequirements</H2><PRE><A HREF="../../java/lang/Object.html">java.lang.Object</A> | +--<B>javax.swing.SizeRequirements</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../java/io/Serializable.html">Serializable</A></DD></DL><HR><DL><DT>public class <B>SizeRequirements</B><DT>extends <A HREF="../../java/lang/Object.html">Object</A><DT>implements <A HREF="../../java/io/Serializable.html">Serializable</A></DL><P>For the convenience of layout managers, calculates information about the size and position of components. All size and position calculation methods are class methods that take arrays of SizeRequirements as arguments. The SizeRequirements class supports two types of layout: <blockquote> <dl> <dt> tiled <dd> The components are placed end-to-end, starting at coordinate 0 (the leftmost or topmost position). <dt> aligned <dd> The components are aligned as specified by each component's X or Y alignment value. </dl> </blockquote> <p> Each SizeRequirements object contains information about either the width (and X alignment) or height (and Y alignment) of a single component or a group of components: <blockquote> <dl> <dt> <code>minimum</code> <dd> The smallest reasonable width/height of the component or component group, in pixels. <dt> <code>preferred</code> <dd> The natural width/height of the component or component group, in pixels. <dt> <code>maximum</code> <dd> The largest reasonable width/height of the component or component group, in pixels. <dt> <code>alignment</code> <dd> The X/Y alignment of the component or component group. </dl> </blockquote> <p> <strong>Warning:</strong> Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. A future release of Swing will provide support for long term persistence.<P><DL><DT><B>See Also: </B><DD><A HREF="../../java/awt/Component.html#getMinimumSize()"><CODE>Component.getMinimumSize()</CODE></A>, <A HREF="../../java/awt/Component.html#getPreferredSize()"><CODE>Component.getPreferredSize()</CODE></A>, <A HREF="../../java/awt/Component.html#getMaximumSize()"><CODE>Component.getMaximumSize()</CODE></A>, <A HREF="../../java/awt/Component.html#getAlignmentX()"><CODE>Component.getAlignmentX()</CODE></A>, <A HREF="../../java/awt/Component.html#getAlignmentY()"><CODE>Component.getAlignmentY()</CODE></A>, <A HREF="../../serialized-form.html#javax.swing.SizeRequirements">Serialized Form</A></DL><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Field Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> float</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/swing/SizeRequirements.html#alignment">alignment</A></B></CODE><BR> The alignment, specified as a value between 0.0 and 1.0, inclusive.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/swing/SizeRequirements.html#maximum">maximum</A></B></CODE><BR> The maximum size allowed.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/swing/SizeRequirements.html#minimum">minimum</A></B></CODE><BR> The minimum size required.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/swing/SizeRequirements.html#preferred">preferred</A></B></CODE><BR> The preferred (natural) size.</TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../javax/swing/SizeRequirements.html#SizeRequirements()">SizeRequirements</A></B>()</CODE><BR> Creates a SizeRequirements object with the minimum, preferred, and maximum sizes set to zero and an alignment value of 0.5 (centered).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../javax/swing/SizeRequirements.html#SizeRequirements(int, int, int, float)">SizeRequirements</A></B>(int min, int pref, int max, float a)</CODE><BR> Creates a SizeRequirements object with the specified minimum, preferred, and maximum sizes and the specified alignment.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int[]</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/swing/SizeRequirements.html#adjustSizes(int, javax.swing.SizeRequirements[])">adjustSizes</A></B>(int delta, <A HREF="../../javax/swing/SizeRequirements.html">SizeRequirements</A>[] children)</CODE><BR> Adjust a specified array of sizes by a given amount.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/swing/SizeRequirements.html#calculateAlignedPositions(int, javax.swing.SizeRequirements, javax.swing.SizeRequirements[], int[], int[])">calculateAlignedPositions</A></B>(int allocated, <A HREF="../../javax/swing/SizeRequirements.html">SizeRequirements</A> total, <A HREF="../../javax/swing/SizeRequirements.html">SizeRequirements</A>[] children, int[] offsets, int[] spans)</CODE><BR> Creates a bunch of offset/span pairs specifying how to lay out a set of components with the specified alignments.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/swing/SizeRequirements.html#calculateTiledPositions(int, javax.swing.SizeRequirements, javax.swing.SizeRequirements[], int[], int[])">calculateTiledPositions</A></B>(int allocated, <A HREF="../../javax/swing/SizeRequirements.html">SizeRequirements</A> total, <A HREF="../../javax/swing/SizeRequirements.html">SizeRequirements</A>[] children, int[] offsets, int[] spans)</CODE><BR> Creates a bunch of offset/span pairs representing how to lay out a set of components end-to-end.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../javax/swing/SizeRequirements.html">SizeRequirements</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/swing/SizeRequirements.html#getAlignedSizeRequirements(javax.swing.SizeRequirements[])">getAlignedSizeRequirements</A></B>(<A HREF="../../javax/swing/SizeRequirements.html">SizeRequirements</A>[] children)</CODE><BR> Determines the total space necessary to align a set of components.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../javax/swing/SizeRequirements.html">SizeRequirements</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/swing/SizeRequirements.html#getTiledSizeRequirements(javax.swing.SizeRequirements[])">getTiledSizeRequirements</A></B>(<A HREF="../../javax/swing/SizeRequirements.html">SizeRequirements</A>[] children)</CODE><BR> Determines the total space necessary to place a set of components end-to-end.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../java/lang/String.html">String</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/swing/SizeRequirements.html#toString()">toString</A></B>()</CODE><BR> Returns a string describing the minimum, preferred, and maximum size requirements, along with the alignment.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">⌨️ 快捷键说明
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