RetroSearch Browse

Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://docs.oracle.com/en/java/javase/19/docs/api/java.desktop/java/awt/font/GlyphMetrics.html below:

GlyphMetrics (Java SE 19 & JDK 19)

public final class GlyphMetrics extends Object

The

GlyphMetrics

class represents information for a single glyph. A glyph is the visual representation of one or more characters. Many different glyphs can be used to represent a single character or combination of characters.

GlyphMetrics

instances are produced by

Font

and are applicable to a specific glyph in a particular

Font

Glyphs are either STANDARD, LIGATURE, COMBINING, or COMPONENT.

STANDARD glyphs are commonly used to represent single characters.
LIGATURE glyphs are used to represent sequences of characters.
COMPONENT glyphs in a GlyphVector do not correspond to a particular character in a text model. Instead, COMPONENT glyphs are added for typographical reasons, such as Arabic justification.
COMBINING glyphs embellish STANDARD or LIGATURE glyphs, such as accent marks. Carets do not appear before COMBINING glyphs.

Other metrics available through GlyphMetrics are the components of the advance, the visual bounds, and the left and right side bearings.

Glyphs for a rotated font, or obtained from a GlyphVector which has applied a rotation to the glyph, can have advances that contain both X and Y components. Usually the advance only has one component.

The advance of a glyph is the distance from the glyph's origin to the origin of the next glyph along the baseline, which is either vertical or horizontal. Note that, in a GlyphVector, the distance from a glyph to its following glyph might not be the glyph's advance, because of kerning or other positioning adjustments.

The bounds is the smallest rectangle that completely contains the outline of the glyph. The bounds rectangle is relative to the glyph's origin. The left-side bearing is the distance from the glyph origin to the left of its bounds rectangle. If the left-side bearing is negative, part of the glyph is drawn to the left of its origin. The right-side bearing is the distance from the right side of the bounds rectangle to the next glyph origin (the origin plus the advance). If negative, part of the glyph is drawn to the right of the next glyph's origin. Note that the bounds does not necessarily enclose all the pixels affected when rendering the glyph, because of rasterization and pixel adjustment effects.

Although instances of GlyphMetrics can be directly constructed, they are almost always obtained from a GlyphVector. Once constructed, GlyphMetrics objects are immutable.

Example:

Querying a Font for glyph information

 Font font = ...;
 int glyphIndex = ...;
 GlyphMetrics metrics = GlyphVector.getGlyphMetrics(glyphIndex);
 int isStandard = metrics.isStandard();
 float glyphAdvance = metrics.getAdvance();

See Also:

Field Summary
Fields

static final byte

Indicates a glyph that represents a combining character, such as an umlaut.

static final byte

Indicates a glyph with no corresponding character in the backing store.

static final byte

Indicates a glyph that represents multiple characters as a ligature, for example 'fi' or 'ffi'.

static final byte

Indicates a glyph that represents a single standard character.

static final byte

Indicates a glyph with no visual representation.
Constructor Summary
Constructors

Constructs a GlyphMetrics object.

Constructs a GlyphMetrics object.
Method Summary
float

Returns the advance of the glyph along the baseline (either horizontal or vertical).

float

Returns the x-component of the advance of the glyph.

float

Returns the y-component of the advance of the glyph.

Returns the bounds of the glyph.

float

Returns the left (top) side bearing of the glyph.

float

Returns the right (bottom) side bearing of the glyph.

int

Returns the raw glyph type code.

boolean

Returns true if this is a combining glyph.

boolean

Returns true if this is a component glyph.

boolean

Returns true if this is a ligature glyph.

boolean

Returns true if this is a standard glyph.

boolean

Returns true if this is a whitespace glyph.
Methods declared in class java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details
- STANDARD
  public static final byte STANDARD
  
  Indicates a glyph that represents a single standard character.
  See Also:
  - Constant Field Values
- LIGATURE
  public static final byte LIGATURE
  
  Indicates a glyph that represents multiple characters as a ligature, for example 'fi' or 'ffi'. It is followed by filler glyphs for the remaining characters. Filler and combining glyphs can be intermixed to control positioning of accent marks on the logically preceding ligature.
  See Also:
  - Constant Field Values
- COMBINING
  public static final byte COMBINING
  
  Indicates a glyph that represents a combining character, such as an umlaut. There is no caret position between this glyph and the preceding glyph.
  See Also:
  - Constant Field Values
- COMPONENT
  public static final byte COMPONENT
  
  Indicates a glyph with no corresponding character in the backing store. The glyph is associated with the character represented by the logically preceding non-component glyph. This is used for kashida justification or other visual modifications to existing glyphs. There is no caret position between this glyph and the preceding glyph.
  See Also:
  - Constant Field Values
- WHITESPACE
  public static final byte WHITESPACE
  
  Indicates a glyph with no visual representation. It can be added to the other code values to indicate an invisible glyph.
  See Also:
  - Constant Field Values
Constructor Details
- GlyphMetrics public GlyphMetrics(float advance, Rectangle2D bounds, byte glyphType)
  Constructs a GlyphMetrics object.
  
  Parameters:
  
  advance - the advance width of the glyph
  
  bounds - the black box bounds of the glyph
  
  glyphType - the type of the glyph
- GlyphMetrics public GlyphMetrics(boolean horizontal, float advanceX, float advanceY, Rectangle2D bounds, byte glyphType)
  Constructs a GlyphMetrics object.
  
  Parameters:
  
  horizontal - if true, metrics are for a horizontal baseline, otherwise they are for a vertical baseline
  
  advanceX - the X-component of the glyph's advance
  
  advanceY - the Y-component of the glyph's advance
  
  bounds - the visual bounds of the glyph
  
  glyphType - the type of the glyph
  
  Since:
  
  1.4
Method Details
- getAdvance
  public float getAdvance()
  
  Returns the advance of the glyph along the baseline (either horizontal or vertical).
  
  Returns:
  
  the advance of the glyph
- getAdvanceX
  public float getAdvanceX()
  
  Returns the x-component of the advance of the glyph.
  
  Returns:
  
  the x-component of the advance of the glyph
  
  Since:
  
  1.4
- getAdvanceY
  public float getAdvanceY()
  
  Returns the y-component of the advance of the glyph.
  
  Returns:
  
  the y-component of the advance of the glyph
  
  Since:
  
  1.4
- getBounds2D
  Returns the bounds of the glyph. This is the bounding box of the glyph outline. Because of rasterization and pixel alignment effects, it does not necessarily enclose the pixels that are affected when rendering the glyph.
  
  Returns:
  
  a Rectangle2D that is the bounds of the glyph.
- getLSB
  public float getLSB()
  
  This is the distance from 0, 0 to the left (top) of the glyph bounds. If the bounds of the glyph is to the left of (above) the origin, the LSB is negative.
  
  Returns:
  
  the left side bearing of the glyph.
- getRSB
  public float getRSB()
  
  This is the distance from the right (bottom) of the glyph bounds to the advance. If the bounds of the glyph is to the right of (below) the advance, the RSB is negative.
  
  Returns:
  
  the right side bearing of the glyph.
- getType
  public int getType()
  
  Returns the raw glyph type code.
  
  Returns:
  
  the raw glyph type code.
- isStandard
  public boolean isStandard()
  
  Returns true if this is a standard glyph.
  
  Returns:
  
  true if this is a standard glyph; false otherwise.
- isLigature
  public boolean isLigature()
  
  Returns true if this is a ligature glyph.
  
  Returns:
  
  true if this is a ligature glyph; false otherwise.
- isCombining
  public boolean isCombining()
  
  Returns true if this is a combining glyph.
  
  Returns:
  
  true if this is a combining glyph; false otherwise.
- isComponent
  public boolean isComponent()
  
  Returns true if this is a component glyph.
  
  Returns:
  
  true if this is a component glyph; false otherwise.
- isWhitespace
  public boolean isWhitespace()
  
  Returns true if this is a whitespace glyph.
  
  Returns:
  
  true if this is a whitespace glyph; false otherwise.

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4