Class TextLayoutManager.TextAreaBuilder

java.lang.Object
org.apache.fop.layoutmgr.inline.TextLayoutManager.TextAreaBuilder
Enclosing class:
TextLayoutManager
private final class TextLayoutManager.TextAreaBuilder extends Object

  • Field Details

    • width

      private final MinOptMax width

    • adjust

      private final int adjust

    • context

      private final LayoutContext context

    • firstIndex

      private final int firstIndex

    • lastIndex

      private final int lastIndex

    • isLastArea

      private final boolean isLastArea

    • font

      private final Font font

    • textArea

      private TextArea textArea

    • blockProgressionDimension

      private int blockProgressionDimension

    • mapping

      private GlyphMapping mapping

    • wordChars

      private StringBuffer wordChars

    • letterSpaceAdjust

      private int[] letterSpaceAdjust

    • letterSpaceAdjustIndex

      private int letterSpaceAdjustIndex

    • wordLevels

      private int[] wordLevels

    • wordLevelsIndex

      private int wordLevelsIndex

    • wordIPD

      private int wordIPD

    • gposAdjustments

      private int[][] gposAdjustments

    • gposAdjustmentsIndex

      private int gposAdjustmentsIndex

  • Constructor Details

    • TextAreaBuilder

      private TextAreaBuilder(MinOptMax width, int adjust, LayoutContext context, int firstIndex, int lastIndex, boolean isLastArea, Font font)
      Creates a new TextAreaBuilder which itself builds an inline word area. This creates a TextArea and sets up the various attributes.
      Parameters:
      width - the MinOptMax width of the content
      adjust - the total ipd adjustment with respect to the optimal width
      context - the layout context
      firstIndex - the index of the first GlyphMapping used for the TextArea
      lastIndex - the index of the last GlyphMapping used for the TextArea
      isLastArea - is this TextArea the last in a line?
      font - Font to be used in this particular TextArea

  • Method Details

    • build

      private TextArea build()

    • createTextArea

      private void createTextArea()
      Creates an plain TextArea or a justified TextArea with additional information.

    • setInlineProgressionDimension

      private void setInlineProgressionDimension()

    • calcBlockProgressionDimension

      private void calcBlockProgressionDimension()

    • setBlockProgressionDimension

      private void setBlockProgressionDimension()

    • setBaselineOffset

      private void setBaselineOffset()

    • setBlockProgressionOffset

      private void setBlockProgressionOffset()

    • setText

      private void setText()
      Sets the text of the TextArea, split into words and spaces.

    • isWordEnd

      private boolean isWordEnd(int mappingIndex)

    • addWord

      private void addWord(int startIndex, int endIndex, int wordLength)
      Add word with fragments from STARTINDEX to ENDINDEX, where total length of (possibly mapped) word is CHARLENGTH. A word is composed from one or more word fragments, where each fragment corresponds to distinct instance in a sequence of area info instances starting at STARTINDEX continuing through (and including) ENDINDEX.
      Parameters:
      startIndex - index of first area info of word to add
      endIndex - index of last area info of word to add
      wordLength - number of (mapped) characters in word

    • isWordSpace

      private boolean isWordSpace(int mappingIndex)

    • getNonEmptyLevels

      private int[] getNonEmptyLevels()

    • initWord

      private void initWord(int wordLength)
      Fully allocate word character buffer, letter space adjustments array, bidi levels array, and glyph position adjustments array. based on full word length, including all (possibly mapped) fragments.
      Parameters:
      wordLength - length of word including all (possibly mapped) fragments

    • isHyphenated

      private boolean isHyphenated(int endIndex)

    • addHyphenationChar

      private void addHyphenationChar()

    • addWordChars

      private void addWordChars(GlyphMapping wordMapping)
      Given a word area info associated with a word fragment, (1) concatenate (possibly mapped) word characters to word character buffer; (2) concatenante (possibly mapped) word bidi levels to levels buffer; (3) update word's IPD with optimal IPD of fragment.
      Parameters:
      wordMapping - fragment info

    • getMappingBidiLevels

      private int[] getMappingBidiLevels(GlyphMapping mapping)
      Obtain bidirectional levels of mapping of characters over specific interval.
      Parameters:
      start - index in character buffer
      end - index in character buffer
      Returns:
      a (possibly empty) array of bidi levels or null in case no bidi levels have been assigned

    • addWordLevels

      private void addWordLevels(int[] levels)
      Given a (possibly null) bidi levels array associated with a word fragment, concatenante (possibly mapped) word bidi levels to levels buffer.
      Parameters:
      levels - bidi levels array or null

    • addLetterAdjust

      private void addLetterAdjust(GlyphMapping wordMapping)
      Given a word area info associated with a word fragment, concatenate letter space adjustments for each (possibly mapped) character.
      Parameters:
      wordMapping - fragment info

    • addGlyphPositionAdjustments

      private boolean addGlyphPositionAdjustments(GlyphMapping wordMapping)
      Given a word area info associated with a word fragment, concatenate glyph position adjustments for each (possibly mapped) character.
      Parameters:
      wordMapping - fragment info
      Returns:
      true if an adjustment was non-zero

    • addSpaces

      private void addSpaces()
      The GlyphMapping stores information about spaces.

      Add the spaces - except zero-width spaces - to the TextArea.