GlyphJustificationInfo JDK 1.6)

Description

publicfinal class GlyphJustificationInfo

The GlyphJustificationInfo class represents information about the justification properties of a glyph.

The 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.

See also:

Constructors

public GlyphJustificationInfo (float weight, boolean growAbsorb, int growPriority, float growLeftLimit, float growRightLimit, boolean shrinkAbsorb, int shrinkPriority, float shrinkLeftLimit, float shrinkRightLimit)

Constructs information about the justification properties of a glyph.

Constructs information about the justification properties of a
glyph.
Parameters:
- 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 grows
- growPriority - the priority level of this glyph when it grows
- growLeftLimit - 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 shrinks
- shrinkPriority - the priority level of this glyph when it shrinks
- shrinkLeftLimit - 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.

Fields

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publicfinal boolean growAbsorb

If true, this glyph absorbs all extra space at this and lower priority levels when it grows.

publicfinal float growLeftLimit

The maximum amount by which the left side of this glyph can grow.

publicfinal int growPriority

The priority level of this glyph as it is growing.

publicfinal float growRightLimit

The maximum amount by which the right side of this glyph can grow.

publicfinalstatic int PRIORITY_INTERCHAR = "2"

The second lowest justification priority.

publicfinalstatic int PRIORITY_KASHIDA = "0"

The highest justification priority.

publicfinalstatic int PRIORITY_NONE = "3"

The lowest justification priority.

publicfinalstatic int PRIORITY_WHITESPACE = "1"

The second highest justification priority.

publicfinal boolean shrinkAbsorb

If true,this glyph absorbs all remaining shrinkage at this and lower priority levels as it shrinks.

publicfinal float shrinkLeftLimit

The maximum amount by which the left side of this glyph can shrink (a positive number).

publicfinal int shrinkPriority

The priority level of this glyph as it is shrinking.

publicfinal float shrinkRightLimit

The maximum amount by which the right side of this glyph can shrink (a positive number).

publicfinal float weight

The weight of this glyph.