public final class GlyphJustificationInfo extends Object
GlyphJustificationInfo class represents information about the justification properties of a 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. The four justification properties represented by GlyphJustificationInfo are weight, priority, absorb and limit. Weight is the overall 'weight' of the glyph in the line. Generally it is proportional to the size of the font. Glyphs with larger weight are allocated a correspondingly larger amount of the change in space.
Priority determines the justification phase in which this glyph is used. All glyphs of the same priority are examined before glyphs of the next priority. If all the change in space can be allocated to these glyphs without exceeding their limits, then glyphs of the next priority are not examined. There are four priorities, kashida, whitespace, interchar, and none. KASHIDA is the first priority examined. NONE is the last priority examined.
Absorb determines whether a glyph absorbs all change in space. Within a given priority, some glyphs may absorb all the change in space. If any of these glyphs are present, no glyphs of later priority are examined.
Limit determines the maximum or minimum amount by which the glyph can change. Left and right sides of the glyph can have different limits.
Each GlyphJustificationInfo represents two sets of metrics, which are growing and shrinking. Growing metrics are used when the glyphs on a line are to be spread apart to fit a larger width. Shrinking metrics are used when the glyphs are to be moved together to fit a smaller width.
| Modifier and Type | Field | Description |
|---|---|---|
final boolean |
growAbsorb |
If true, this glyph absorbs all extra space at this and lower priority levels when it grows. |
final float |
growLeftLimit |
The maximum amount by which the left side of this glyph can grow. |
final int |
growPriority |
The priority level of this glyph as it is growing. |
final float |
growRightLimit |
The maximum amount by which the right side of this glyph can grow. |
static final int |
PRIORITY_INTERCHAR |
The second lowest justification priority. |
static final int |
PRIORITY_KASHIDA |
The highest justification priority. |
static final int |
PRIORITY_NONE |
The lowest justification priority. |
static final int |
PRIORITY_WHITESPACE |
The second highest justification priority. |
final boolean |
shrinkAbsorb |
If true, this glyph absorbs all remaining shrinkage at this and lower priority levels as it shrinks. |
final float |
shrinkLeftLimit |
The maximum amount by which the left side of this glyph can shrink (a positive number). |
final int |
shrinkPriority |
The priority level of this glyph as it is shrinking. |
final float |
shrinkRightLimit |
The maximum amount by which the right side of this glyph can shrink (a positive number). |
final float |
weight |
The weight of this glyph. |
| Constructor | Description |
|---|---|
GlyphJustificationInfo |
Constructs information about the justification properties of a glyph. |
public static final int PRIORITY_KASHIDA
public static final int PRIORITY_WHITESPACE
public static final int PRIORITY_INTERCHAR
public static final int PRIORITY_NONE
public final float weight
public final int growPriority
public final boolean growAbsorb
true, this glyph absorbs all extra space at this and lower priority levels when it grows.public final float growLeftLimit
public final float growRightLimit
public final int shrinkPriority
public final boolean shrinkAbsorb
true, this glyph absorbs all remaining shrinkage at this and lower priority levels as it shrinks.public final float shrinkLeftLimit
public final float shrinkRightLimit
public GlyphJustificationInfo(float weight, boolean growAbsorb, int growPriority, float growLeftLimit, float growRightLimit, boolean shrinkAbsorb, int shrinkPriority, float shrinkLeftLimit, float shrinkRightLimit)
weight - the weight of this glyph when allocating space. Must be non-negative.growAbsorb - if true this glyph absorbs all extra space at this priority and lower priority levels when it growsgrowPriority - the priority level of this glyph when it growsgrowLeftLimit - the maximum amount by which the left side of this glyph can grow. Must be non-negative.growRightLimit - the maximum amount by which the right side of this glyph can grow. Must be non-negative.shrinkAbsorb - if true, this glyph absorbs all remaining shrinkage at this and lower priority levels when it shrinksshrinkPriority - the priority level of this glyph when it shrinksshrinkLeftLimit - the maximum amount by which the left side of this glyph can shrink. Must be non-negative.shrinkRightLimit - the maximum amount by which the right side of this glyph can shrink. Must be non-negative.
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https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/java/awt/font/GlyphJustificationInfo.html