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Class awt.FontMetrics

java.lang.Object
   |
   +----awt.FontMetrics

public class FontMetrics

extends Object

Version:

1.2 10 Apr 1995

Author:

Jim Graham

ascent

The standard ascent of the font.

descent

The standard descent of the font.

height

The standard height of a line of text in this font.

leading

The standard leading for the font.

maxAdvance

The maximum advance width of any character in this font.

maxAscent

The maximum ascent for all characters in this font.

maxDescent

The maximum descent for all characters in this font.

maxHeight

The maximum possible height of a line of text in this font.

widths

bytesWidth(byte[], int, int)

Return the width of the specified byte[] in this Font.

charWidth(int)

Return the width of the specified character in this Font.

charsWidth(char[], int, int)

Return the width of the specified char[] in this Font.

stringWidth(String)

Return the width of the specified string in this Font.

toString()

Convert this object to a string representation.

  public int widths[]

  public int ascent

The standard ascent of the font. This is the logical height above the baseline for the Alphanumeric characters and should be used for determining line spacing. Note, however, that some characters in the font may extend above this height.

  public int descent

The standard descent of the font. This is the logical height below the baseline for the Alphanumeric characters and should be used for determining line spacing. Note, however, that some characters in the font may extend below this height.

  public int leading

The standard leading for the font. This is the logical amount of space to be reserved between the descent of one line of text and the ascent of the next line. The height metric is calculated to include this extra space.

  public int height

The standard height of a line of text in this font. This is the distance between the baseline of adjacent lines of text. It is the sum of the ascent+descent+leading. There is no guarantee that lines of text spaced at this distance will be disjoint; such lines may overlap if some characters overshoot the standard ascent and descent metrics.

  public int maxAscent

The maximum ascent for all characters in this font. No character will extend further above the baseline than this metric.

  public int maxDescent

The maximum descent for all characters in this font. No character will descend further below the baseline than this metric.

  public int maxHeight

The maximum possible height of a line of text in this font. Adjacent lines of text spaced this distance apart will be guaranteed not to overlap. Note, however, that many paragraphs that contain ordinary alphanumeric text may look too widely spaced if this metric is used to determine line spacing. The height field should be preferred unless the text in a given line contains particularly tall characters.

  public int maxAdvance

The maximum advance width of any character in this font.

  public String toString()

Convert this object to a string representation.

Overrides:

toString in class Object

charWidth

  public abstract int charWidth(int ch)

Return the width of the specified character in this Font.

stringWidth

  public abstract int stringWidth(String s)

Return the width of the specified string in this Font.

charsWidth

  public abstract int charsWidth(char data[],
                                 int off,
                                 int len)

Return the width of the specified char[] in this Font.

bytesWidth

  public abstract int bytesWidth(byte data[],
                                 int off,
                                 int len)

Return the width of the specified byte[] in this Font.

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