FontMetrics.java: Reformatted.
2005-04-19 Michael Koch <konqueror@gmx.de> * java/awt/FontMetrics.java: Reformatted. (getFontRenderContext): Handle case when java.awt.Graphics context is given. 2005-04-19 Michael Koch <konqueror@gmx.de> * java/awt/FontMetrics.java (getStringBounds): New methods. From-SVN: r98398
This commit is contained in:
Michael Koch
Michael Koch
parent
fd60329140
commit
b53d078374
2 changed files with 369 additions and 395 deletions
|
|
@ -1,5 +1,5 @@
|
|||
/* FontMetrics.java -- Information about about a fonts display characteristics
|
||||
Copyright (C) 1999, 2002 Free Software Foundation, Inc.
|
||||
Copyright (C) 1999, 2002, 2005 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GNU Classpath.
|
||||
|
||||
|
|
@ -40,6 +40,7 @@ package java.awt;
|
|||
|
||||
import java.awt.font.FontRenderContext;
|
||||
import java.awt.font.LineMetrics;
|
||||
import java.awt.geom.Rectangle2D;
|
||||
import java.text.CharacterIterator;
|
||||
|
||||
// FIXME: I leave many methods basically unimplemented. This
|
||||
|
|
@ -49,7 +50,7 @@ import java.text.CharacterIterator;
|
|||
* This class returns information about the display characteristics of
|
||||
* a font. It is abstract, and concrete subclasses should implement at
|
||||
* least the following methods:
|
||||
* <p>
|
||||
*
|
||||
* <ul>
|
||||
* <li>getAscent()</li>
|
||||
* <li>getDescent()</li>
|
||||
|
|
@ -63,401 +64,362 @@ import java.text.CharacterIterator;
|
|||
*/
|
||||
public abstract class FontMetrics implements java.io.Serializable
|
||||
{
|
||||
// Serialization constant.
|
||||
private static final long serialVersionUID = 1681126225205050147L;
|
||||
|
||||
/*
|
||||
* Static Variables
|
||||
*/
|
||||
/**
|
||||
* This is the font for which metrics will be returned.
|
||||
*/
|
||||
protected Font font;
|
||||
|
||||
// Serialization constant
|
||||
private static final long serialVersionUID = 1681126225205050147L;
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/*
|
||||
* Instance Variables
|
||||
*/
|
||||
|
||||
/**
|
||||
* This is the font for which metrics will be returned.
|
||||
*/
|
||||
protected Font font;
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/*
|
||||
* Constructors
|
||||
*/
|
||||
|
||||
/**
|
||||
* Initializes a new instance of <code>FontMetrics</code> for the
|
||||
* specified font.
|
||||
*
|
||||
* @param font The font to return metric information for.
|
||||
*/
|
||||
protected
|
||||
FontMetrics(Font font)
|
||||
{
|
||||
this.font = font;
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/*
|
||||
* Instance Methods
|
||||
*/
|
||||
|
||||
/**
|
||||
* Returns the font that this object is creating metric information fo.
|
||||
*
|
||||
* @return The font for this object.
|
||||
*/
|
||||
public Font
|
||||
getFont()
|
||||
{
|
||||
return(font);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns the leading, or spacing between lines, for this font.
|
||||
*
|
||||
* @return The font leading.
|
||||
*/
|
||||
public int
|
||||
getLeading()
|
||||
{
|
||||
return(0);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns the ascent of the font, which is the distance from the base
|
||||
* to the top of the majority of characters in the set. Some characters
|
||||
* can exceed this value however.
|
||||
*
|
||||
* @return The font ascent.
|
||||
*/
|
||||
public int
|
||||
getAscent()
|
||||
{
|
||||
return(1);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns the descent of the font, which is the distance from the base
|
||||
* to the bottom of the majority of characters in the set. Some characters
|
||||
* can exceed this value however.
|
||||
*
|
||||
* @return The font descent.
|
||||
*/
|
||||
public int
|
||||
getDescent()
|
||||
{
|
||||
return(1);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns the height of a line in this font. This will be the sum
|
||||
* of the leading, the ascent, and the descent.
|
||||
*
|
||||
* @return The height of the font.
|
||||
*/
|
||||
public int
|
||||
getHeight()
|
||||
{
|
||||
return(getAscent() + getDescent() + getLeading());
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns the maximum ascent value. This is the maximum distance any
|
||||
* character in the font rised above the baseline.
|
||||
*
|
||||
* @return The maximum ascent for this font.
|
||||
*/
|
||||
public int
|
||||
getMaxAscent()
|
||||
{
|
||||
return(getAscent());
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns the maximum descent value. This is the maximum distance any
|
||||
* character in the font extends below the baseline.
|
||||
*
|
||||
* @return The maximum descent for this font.
|
||||
*/
|
||||
public int
|
||||
getMaxDescent()
|
||||
{
|
||||
return getMaxDecent ();
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns the maximum descent value. This is the maximum distance any
|
||||
* character in the font extends below the baseline.
|
||||
*
|
||||
* @return The maximum descent for this font.
|
||||
*
|
||||
* @deprecated This method is deprecated in favor of
|
||||
* <code>getMaxDescent()</code>.
|
||||
*/
|
||||
public int
|
||||
getMaxDecent()
|
||||
{
|
||||
return getDescent ();
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns the width of the widest character in the font.
|
||||
*
|
||||
* @return The width of the widest character in the font.
|
||||
*/
|
||||
public int
|
||||
getMaxAdvance()
|
||||
{
|
||||
return(-1);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns the width of the specified character.
|
||||
*
|
||||
* @param ch The character to return the width of.
|
||||
*
|
||||
* @return The width of the specified character.
|
||||
*/
|
||||
public int
|
||||
charWidth(int ch)
|
||||
{
|
||||
return(charWidth((char)ch));
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns the width of the specified character.
|
||||
*
|
||||
* @param ch The character to return the width of.
|
||||
*
|
||||
* @return The width of the specified character.
|
||||
*/
|
||||
public int
|
||||
charWidth(char ch)
|
||||
{
|
||||
return(1);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns the total width of the specified string
|
||||
*
|
||||
* @param str The string to return the width of.
|
||||
*
|
||||
* @return The width of the string.
|
||||
*/
|
||||
public int
|
||||
stringWidth(String str)
|
||||
{
|
||||
char[] buf = new char[str.length()];
|
||||
str.getChars(0, str.length(), buf, 0);
|
||||
|
||||
return(charsWidth(buf, 0, buf.length));
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns the total width of the specified character array.
|
||||
*
|
||||
* @param buf The character array containing the data.
|
||||
* @param offset The offset into the array to start calculating from.
|
||||
* @param len The total number of bytes to process.
|
||||
*
|
||||
* @return The width of the requested characters.
|
||||
*/
|
||||
public int
|
||||
charsWidth(char buf[], int offset, int len)
|
||||
{
|
||||
int total_width = 0;
|
||||
for (int i = offset; i < len; i++)
|
||||
total_width += charWidth(buf[i]);
|
||||
return(total_width);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns the total width of the specified byte array.
|
||||
*
|
||||
* @param buf The byte array containing the data.
|
||||
* @param offset The offset into the array to start calculating from.
|
||||
* @param len The total number of bytes to process.
|
||||
*
|
||||
* @return The width of the requested characters.
|
||||
*/
|
||||
public int
|
||||
bytesWidth(byte buf[], int offset, int len)
|
||||
{
|
||||
int total_width = 0;
|
||||
for (int i = offset; i < len; i++)
|
||||
total_width = charWidth((char)buf[i]);
|
||||
|
||||
return(total_width);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns the widths of the first 256 characters in the font.
|
||||
*
|
||||
* @return The widths of the first 256 characters in the font.
|
||||
*/
|
||||
public int[]
|
||||
getWidths()
|
||||
{
|
||||
int [] result = new int[256];
|
||||
for(char i = 0; i < 256; i++)
|
||||
/**
|
||||
* Initializes a new instance of <code>FontMetrics</code> for the
|
||||
* specified font.
|
||||
*
|
||||
* @param font The font to return metric information for.
|
||||
*/
|
||||
protected FontMetrics(Font font)
|
||||
{
|
||||
result[i]= charWidth(i);
|
||||
this.font = font;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the font that this object is creating metric information fo.
|
||||
*
|
||||
* @return The font for this object.
|
||||
*/
|
||||
public Font getFont()
|
||||
{
|
||||
return font;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the leading, or spacing between lines, for this font.
|
||||
*
|
||||
* @return The font leading.
|
||||
*/
|
||||
public int getLeading()
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the ascent of the font, which is the distance from the base
|
||||
* to the top of the majority of characters in the set. Some characters
|
||||
* can exceed this value however.
|
||||
*
|
||||
* @return The font ascent.
|
||||
*/
|
||||
public int getAscent()
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the descent of the font, which is the distance from the base
|
||||
* to the bottom of the majority of characters in the set. Some characters
|
||||
* can exceed this value however.
|
||||
*
|
||||
* @return The font descent.
|
||||
*/
|
||||
public int getDescent()
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the height of a line in this font. This will be the sum
|
||||
* of the leading, the ascent, and the descent.
|
||||
*
|
||||
* @return The height of the font.
|
||||
*/
|
||||
public int getHeight()
|
||||
{
|
||||
return getAscent() + getDescent() + getLeading();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the maximum ascent value. This is the maximum distance any
|
||||
* character in the font rised above the baseline.
|
||||
*
|
||||
* @return The maximum ascent for this font.
|
||||
*/
|
||||
public int getMaxAscent()
|
||||
{
|
||||
return getAscent();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the maximum descent value. This is the maximum distance any
|
||||
* character in the font extends below the baseline.
|
||||
*
|
||||
* @return The maximum descent for this font.
|
||||
*/
|
||||
public int getMaxDescent()
|
||||
{
|
||||
return getMaxDecent();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the maximum descent value. This is the maximum distance any
|
||||
* character in the font extends below the baseline.
|
||||
*
|
||||
* @return The maximum descent for this font.
|
||||
*
|
||||
* @deprecated This method is deprecated in favor of
|
||||
* <code>getMaxDescent()</code>.
|
||||
*/
|
||||
public int getMaxDecent()
|
||||
{
|
||||
return getDescent();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the width of the widest character in the font.
|
||||
*
|
||||
* @return The width of the widest character in the font.
|
||||
*/
|
||||
public int getMaxAdvance()
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the width of the specified character.
|
||||
*
|
||||
* @param ch The character to return the width of.
|
||||
*
|
||||
* @return The width of the specified character.
|
||||
*/
|
||||
public int charWidth(int ch)
|
||||
{
|
||||
return charWidth((char) ch);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the width of the specified character.
|
||||
*
|
||||
* @param ch The character to return the width of.
|
||||
*
|
||||
* @return The width of the specified character.
|
||||
*/
|
||||
public int charWidth(char ch)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the total width of the specified string
|
||||
*
|
||||
* @param str The string to return the width of.
|
||||
*
|
||||
* @return The width of the string.
|
||||
*/
|
||||
public int stringWidth(String str)
|
||||
{
|
||||
char[] buf = new char[str.length()];
|
||||
str.getChars(0, str.length(), buf, 0);
|
||||
|
||||
return charsWidth(buf, 0, buf.length);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the total width of the specified character array.
|
||||
*
|
||||
* @param buf The character array containing the data.
|
||||
* @param offset The offset into the array to start calculating from.
|
||||
* @param len The total number of bytes to process.
|
||||
*
|
||||
* @return The width of the requested characters.
|
||||
*/
|
||||
public int charsWidth(char[] buf, int offset, int len)
|
||||
{
|
||||
int total_width = 0;
|
||||
for (int i = offset; i < len; i++)
|
||||
total_width += charWidth(buf[i]);
|
||||
return total_width;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the total width of the specified byte array.
|
||||
*
|
||||
* @param buf The byte array containing the data.
|
||||
* @param offset The offset into the array to start calculating from.
|
||||
* @param len The total number of bytes to process.
|
||||
*
|
||||
* @return The width of the requested characters.
|
||||
*/
|
||||
public int bytesWidth(byte[] buf, int offset, int len)
|
||||
{
|
||||
int total_width = 0;
|
||||
for (int i = offset; i < len; i++)
|
||||
total_width = charWidth((char) buf[i]);
|
||||
|
||||
return total_width;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the widths of the first 256 characters in the font.
|
||||
*
|
||||
* @return The widths of the first 256 characters in the font.
|
||||
*/
|
||||
public int[] getWidths()
|
||||
{
|
||||
int[] result = new int[256];
|
||||
for (char i = 0; i < 256; i++)
|
||||
result[i] = charWidth(i);
|
||||
return result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a string representation of this object.
|
||||
*
|
||||
* @return A string representation of this object.
|
||||
*/
|
||||
public String toString()
|
||||
{
|
||||
return (this.getClass() + "[font=" + font + ",ascent=" + getAscent()
|
||||
+ ",descent=" + getDescent() + ",height=" + getHeight() + "]");
|
||||
}
|
||||
|
||||
// Generic FontRenderContext used when getLineMetrics is called with a
|
||||
// plain Graphics object.
|
||||
private static final FontRenderContext gRC = new FontRenderContext(null,
|
||||
false,
|
||||
false);
|
||||
|
||||
/**
|
||||
* Returns a {@link LineMetrics} object constructed with the
|
||||
* specified text and the {@link FontRenderContext} of the Graphics
|
||||
* object when it is an instance of Graphics2D or a generic
|
||||
* FontRenderContext with a null transform, not anti-aliased and not
|
||||
* using fractional metrics.
|
||||
*
|
||||
* @param text The string to calculate metrics from.
|
||||
* @param g The Graphics object that will be used.
|
||||
*
|
||||
* @return A new {@link LineMetrics} object.
|
||||
*/
|
||||
public LineMetrics getLineMetrics(String text, Graphics g)
|
||||
{
|
||||
return getLineMetrics(text, 0, text.length(), g);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a {@link LineMetrics} object constructed with the
|
||||
* specified text and the {@link FontRenderContext} of the Graphics
|
||||
* object when it is an instance of Graphics2D or a generic
|
||||
* FontRenderContext with a null transform, not anti-aliased and not
|
||||
* using fractional metrics.
|
||||
*
|
||||
* @param text The string to calculate metrics from.
|
||||
* @param begin Index of first character in <code>text</code> to measure.
|
||||
* @param limit Index of last character in <code>text</code> to measure.
|
||||
* @param g The Graphics object that will be used.
|
||||
*
|
||||
* @return A new {@link LineMetrics} object.
|
||||
*
|
||||
* @throws IndexOutOfBoundsException if the range [begin, limit] is
|
||||
* invalid in <code>text</code>.
|
||||
*/
|
||||
public LineMetrics getLineMetrics(String text, int begin, int limit,
|
||||
Graphics g)
|
||||
{
|
||||
FontRenderContext rc;
|
||||
if (g instanceof Graphics2D)
|
||||
rc = ((Graphics2D) g).getFontRenderContext();
|
||||
else
|
||||
rc = gRC;
|
||||
return font.getLineMetrics(text, begin, limit, rc);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a {@link LineMetrics} object constructed with the
|
||||
* specified text and the {@link FontRenderContext} of the Graphics
|
||||
* object when it is an instance of Graphics2D or a generic
|
||||
* FontRenderContext with a null transform, not anti-aliased and not
|
||||
* using fractional metrics.
|
||||
*
|
||||
* @param chars The string to calculate metrics from.
|
||||
* @param begin Index of first character in <code>text</code> to measure.
|
||||
* @param limit Index of last character in <code>text</code> to measure.
|
||||
* @param g The Graphics object that will be used.
|
||||
*
|
||||
* @return A new {@link LineMetrics} object.
|
||||
*
|
||||
* @throws IndexOutOfBoundsException if the range [begin, limit] is
|
||||
* invalid in <code>text</code>.
|
||||
*/
|
||||
public LineMetrics getLineMetrics(char[] chars, int begin, int limit,
|
||||
Graphics g)
|
||||
{
|
||||
FontRenderContext rc;
|
||||
if (g instanceof Graphics2D)
|
||||
rc = ((Graphics2D) g).getFontRenderContext();
|
||||
else
|
||||
rc = gRC;
|
||||
return font.getLineMetrics(chars, begin, limit, rc);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a {@link LineMetrics} object constructed with the
|
||||
* specified text and the {@link FontRenderContext} of the Graphics
|
||||
* object when it is an instance of Graphics2D or a generic
|
||||
* FontRenderContext with a null transform, not anti-aliased and not
|
||||
* using fractional metrics.
|
||||
*
|
||||
* @param ci An iterator over the string to calculate metrics from.
|
||||
* @param begin Index of first character in <code>text</code> to measure.
|
||||
* @param limit Index of last character in <code>text</code> to measure.
|
||||
* @param g The Graphics object that will be used.
|
||||
*
|
||||
* @return A new {@link LineMetrics} object.
|
||||
*
|
||||
* @throws IndexOutOfBoundsException if the range [begin, limit] is
|
||||
* invalid in <code>text</code>.
|
||||
*/
|
||||
public LineMetrics getLineMetrics(CharacterIterator ci, int begin,
|
||||
int limit, Graphics g)
|
||||
{
|
||||
FontRenderContext rc;
|
||||
if (g instanceof Graphics2D)
|
||||
rc = ((Graphics2D) g).getFontRenderContext();
|
||||
else
|
||||
rc = gRC;
|
||||
return font.getLineMetrics(ci, begin, limit, rc);
|
||||
}
|
||||
|
||||
public Rectangle2D getStringBounds(String str, Graphics context)
|
||||
{
|
||||
return font.getStringBounds(str, getFontRenderContext(context));
|
||||
}
|
||||
|
||||
public Rectangle2D getStringBounds(String str, int beginIndex, int limit,
|
||||
Graphics context)
|
||||
{
|
||||
return font.getStringBounds(str, beginIndex, limit,
|
||||
getFontRenderContext(context));
|
||||
}
|
||||
|
||||
public Rectangle2D getStringBounds(char[] chars, int beginIndex, int limit,
|
||||
Graphics context)
|
||||
{
|
||||
return font.getStringBounds(chars, beginIndex, limit,
|
||||
getFontRenderContext(context));
|
||||
}
|
||||
|
||||
public Rectangle2D getStringBounds(CharacterIterator ci, int beginIndex,
|
||||
int limit, Graphics context)
|
||||
{
|
||||
return font.getStringBounds(ci, beginIndex, limit,
|
||||
getFontRenderContext(context));
|
||||
}
|
||||
|
||||
private FontRenderContext getFontRenderContext(Graphics context)
|
||||
{
|
||||
if (context instanceof Graphics2D)
|
||||
return ((Graphics2D) context).getFontRenderContext();
|
||||
|
||||
return gRC;
|
||||
}
|
||||
return(result);
|
||||
}
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
/**
|
||||
* Returns a string representation of this object.
|
||||
*
|
||||
* @return A string representation of this object.
|
||||
*/
|
||||
public String
|
||||
toString()
|
||||
{
|
||||
return (this.getClass() + "[font=" + font + ",ascent=" + getAscent()
|
||||
+ ",descent=" + getDescent() + ",height=" + getHeight() + "]");
|
||||
}
|
||||
|
||||
|
||||
// Generic FontRenderContext used when getLineMetrics is called with a
|
||||
// plain Graphics object.
|
||||
private static final FontRenderContext gRC = new FontRenderContext(null,
|
||||
false,
|
||||
false);
|
||||
|
||||
/**
|
||||
* Returns a {@link LineMetrics} object constructed with the
|
||||
* specified text and the {@link FontRenderContext} of the Graphics
|
||||
* object when it is an instance of Graphics2D or a generic
|
||||
* FontRenderContext with a null transform, not anti-aliased and not
|
||||
* using fractional metrics.
|
||||
*
|
||||
* @param text The string to calculate metrics from.
|
||||
* @param g The Graphics object that will be used.
|
||||
*
|
||||
* @return A new {@link LineMetrics} object.
|
||||
*/
|
||||
public LineMetrics getLineMetrics(String text, Graphics g)
|
||||
{
|
||||
return getLineMetrics(text, 0, text.length(), g);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a {@link LineMetrics} object constructed with the
|
||||
* specified text and the {@link FontRenderContext} of the Graphics
|
||||
* object when it is an instance of Graphics2D or a generic
|
||||
* FontRenderContext with a null transform, not anti-aliased and not
|
||||
* using fractional metrics.
|
||||
*
|
||||
* @param text The string to calculate metrics from.
|
||||
* @param begin Index of first character in <code>text</code> to measure.
|
||||
* @param limit Index of last character in <code>text</code> to measure.
|
||||
* @param g The Graphics object that will be used.
|
||||
*
|
||||
* @return A new {@link LineMetrics} object.
|
||||
*
|
||||
* @throws IndexOutOfBoundsException if the range [begin, limit] is
|
||||
* invalid in <code>text</code>.
|
||||
*/
|
||||
public LineMetrics getLineMetrics(String text, int begin,
|
||||
int limit, Graphics g)
|
||||
{
|
||||
FontRenderContext rc;
|
||||
if (g instanceof Graphics2D)
|
||||
rc = ((Graphics2D) g).getFontRenderContext();
|
||||
else
|
||||
rc = gRC;
|
||||
return font.getLineMetrics(text, begin, limit, rc);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a {@link LineMetrics} object constructed with the
|
||||
* specified text and the {@link FontRenderContext} of the Graphics
|
||||
* object when it is an instance of Graphics2D or a generic
|
||||
* FontRenderContext with a null transform, not anti-aliased and not
|
||||
* using fractional metrics.
|
||||
*
|
||||
* @param chars The string to calculate metrics from.
|
||||
* @param begin Index of first character in <code>text</code> to measure.
|
||||
* @param limit Index of last character in <code>text</code> to measure.
|
||||
* @param g The Graphics object that will be used.
|
||||
*
|
||||
* @return A new {@link LineMetrics} object.
|
||||
*
|
||||
* @throws IndexOutOfBoundsException if the range [begin, limit] is
|
||||
* invalid in <code>text</code>.
|
||||
*/
|
||||
public LineMetrics getLineMetrics(char[] chars, int begin,
|
||||
int limit, Graphics g)
|
||||
{
|
||||
FontRenderContext rc;
|
||||
if (g instanceof Graphics2D)
|
||||
rc = ((Graphics2D) g).getFontRenderContext();
|
||||
else
|
||||
rc = gRC;
|
||||
return font.getLineMetrics(chars, begin, limit, rc);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a {@link LineMetrics} object constructed with the
|
||||
* specified text and the {@link FontRenderContext} of the Graphics
|
||||
* object when it is an instance of Graphics2D or a generic
|
||||
* FontRenderContext with a null transform, not anti-aliased and not
|
||||
* using fractional metrics.
|
||||
*
|
||||
* @param ci An iterator over the string to calculate metrics from.
|
||||
* @param begin Index of first character in <code>text</code> to measure.
|
||||
* @param limit Index of last character in <code>text</code> to measure.
|
||||
* @param g The Graphics object that will be used.
|
||||
*
|
||||
* @return A new {@link LineMetrics} object.
|
||||
*
|
||||
* @throws IndexOutOfBoundsException if the range [begin, limit] is
|
||||
* invalid in <code>text</code>.
|
||||
*/
|
||||
public LineMetrics getLineMetrics(CharacterIterator ci, int begin,
|
||||
int limit, Graphics g)
|
||||
{
|
||||
FontRenderContext rc;
|
||||
if (g instanceof Graphics2D)
|
||||
rc = ((Graphics2D) g).getFontRenderContext();
|
||||
else
|
||||
rc = gRC;
|
||||
return font.getLineMetrics(ci, begin, limit, rc);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue