java.awt.font

Class GlyphJustificationInfo

Inhoudsopgave

  • public final class GlyphJustificationInfo
extends Object
    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.

    • Field Detail

      • PRIORITY_KASHIDA

        public static final int PRIORITY_KASHIDA
        The highest justification priority.
        See Also:
        Constant Field Values

      • PRIORITY_WHITESPACE

        public static final int PRIORITY_WHITESPACE
        The second highest justification priority.
        See Also:
        Constant Field Values

      • PRIORITY_INTERCHAR

        public static final int PRIORITY_INTERCHAR
        The second lowest justification priority.
        See Also:
        Constant Field Values

      • PRIORITY_NONE

        public static final int PRIORITY_NONE
        The lowest justification priority.
        See Also:
        Constant Field Values

      • weight

        public final float weight
        The weight of this glyph.

      • growPriority

        public final int growPriority
        The priority level of this glyph as it is growing.

      • growAbsorb

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

      • growLeftLimit

        public final float growLeftLimit
        The maximum amount by which the left side of this glyph can grow.

      • growRightLimit

        public final float growRightLimit
        The maximum amount by which the right side of this glyph can grow.

      • shrinkPriority

        public final int shrinkPriority
        The priority level of this glyph as it is shrinking.

      • shrinkAbsorb

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

      • shrinkLeftLimit

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

      • shrinkRightLimit

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

    • Constructor Detail

      • GlyphJustificationInfo

        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.
        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.

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Document heeft de 11/06/2005 gemaakt, de laatste keer de 04/03/2020 gewijzigd
Bron van het afgedrukte document:https://www.gaudry.be/nl/java-api-rf-java/awt/font/GlyphJustificationInfo.html

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