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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 Fri Sep 27 14:47:30 CDT 2002 --><TITLE>Mobile Information Device Profile 2.0: Class Font</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/Font.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-all.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><strong>MIDP 2.0</strong></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../javax/microedition/lcdui/Displayable.html"><B>PREV CLASS</B></A> <A HREF="../../../javax/microedition/lcdui/Form.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="Font.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> | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">javax.microedition.lcdui</FONT><BR>Class Font</H2><PRE>java.lang.Object | +--<B>javax.microedition.lcdui.Font</B></PRE><HR><DL><DT>public final class <B>Font</B><DT>extends Object</DL><P>The <code>Font</code> class represents fonts and font metrics. <code>Fonts</code> cannot be created by applications. Instead, applications query for fonts based on font attributes and the system will attempt to provide a font that matches the requested attributes as closely as possible. <p> A <code>Font's</code> attributes are style, size, and face. Values for attributes must be specified in terms of symbolic constants. Values for the style attribute may be combined using the bit-wise <code>OR</code> operator, whereas values for the other attributes may not be combined. For example, the value </p> <p> <code> STYLE_BOLD | STYLE_ITALIC </code> </p> <p> may be used to specify a bold-italic font; however </p> <p> <code> SIZE_LARGE | SIZE_SMALL </code> </p> <p> is illegal. </p> <p> The values of these constants are arranged so that zero is valid for each attribute and can be used to specify a reasonable default font for the system. For clarity of programming, the following symbolic constants are provided and are defined to have values of zero: </p> <p> <ul> <li> <code> STYLE_PLAIN </code> </li> <li> <code> SIZE_MEDIUM </code> </li> <li> <code> FACE_SYSTEM </code> </li> </ul> </p> <p> Values for other attributes are arranged to have disjoint bit patterns in order to raise errors if they are inadvertently misused (for example, using <code>FACE_PROPORTIONAL</code> where a style is required). However, the values for the different attributes are not intended to be combined with each other. </p><P><DL><DT><B>Since: </B><DD>MIDP 1.0</DD></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>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/microedition/lcdui/Font.html#FACE_MONOSPACE">FACE_MONOSPACE</A></B></CODE><BR> The "monospace" font face.</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/microedition/lcdui/Font.html#FACE_PROPORTIONAL">FACE_PROPORTIONAL</A></B></CODE><BR> The "proportional" font face.</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/microedition/lcdui/Font.html#FACE_SYSTEM">FACE_SYSTEM</A></B></CODE><BR> The "system" font face.</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/microedition/lcdui/Font.html#FONT_INPUT_TEXT">FONT_INPUT_TEXT</A></B></CODE><BR> Font specifier used by the implementation to draw text input by a user.</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/microedition/lcdui/Font.html#FONT_STATIC_TEXT">FONT_STATIC_TEXT</A></B></CODE><BR> Default font specifier used to draw Item and Screen contents.</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/microedition/lcdui/Font.html#SIZE_LARGE">SIZE_LARGE</A></B></CODE><BR> The "large" system-dependent font size.</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/microedition/lcdui/Font.html#SIZE_MEDIUM">SIZE_MEDIUM</A></B></CODE><BR> The "medium" system-dependent font size.</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/microedition/lcdui/Font.html#SIZE_SMALL">SIZE_SMALL</A></B></CODE><BR> The "small" system-dependent font size.</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/microedition/lcdui/Font.html#STYLE_BOLD">STYLE_BOLD</A></B></CODE><BR> The bold style constant.</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/microedition/lcdui/Font.html#STYLE_ITALIC">STYLE_ITALIC</A></B></CODE><BR> The italicized style constant.</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/microedition/lcdui/Font.html#STYLE_PLAIN">STYLE_PLAIN</A></B></CODE><BR> The plain style constant.</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/microedition/lcdui/Font.html#STYLE_UNDERLINED">STYLE_UNDERLINED</A></B></CODE><BR> The underlined style constant.</TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><!-- ========== 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> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/microedition/lcdui/Font.html#charsWidth(char[], int, int)">charsWidth</A></B>(char[] ch, int offset, int length)</CODE><BR> Returns the advance width of the characters in <code>ch</code>, starting at the specified offset and for the specified number of characters (length).</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/microedition/lcdui/Font.html#charWidth(char)">charWidth</A></B>(char ch)</CODE><BR> Gets the advance width of the specified character in this Font.</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/microedition/lcdui/Font.html#getBaselinePosition()">getBaselinePosition</A></B>()</CODE><BR> Gets the distance in pixels from the top of the text to the text's baseline.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../../../javax/microedition/lcdui/Font.html">Font</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/microedition/lcdui/Font.html#getDefaultFont()">getDefaultFont</A></B>()</CODE><BR> Gets the default font of the system.</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/microedition/lcdui/Font.html#getFace()">getFace</A></B>()</CODE><BR> Gets the face of the font.</TD>⌨️ 快捷键说明
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