Package com.openhtmltopdf.bidi

Class ParagraphSplitter.Paragraph

  • Direct Known Subclasses:
    ParagraphSplitter.FakeParagraph
    Enclosing class:
    ParagraphSplitter
    public static class ParagraphSplitter.Paragraph
extends java.lang.Object
    A paragraph object collects the text of one paragraph. That is the text in a block element wiht possible holes from BIDI isolation tags. This text is then used to run the Unicode BIDI algorithm splitting text up into runs of LTR and RTL text.

    • Field Detail

      • builder

        private final java.lang.StringBuilder builder

      • splitPoints

        private final java.util.TreeMap<java.lang.Integer,​BidiTextRun> splitPoints

      • textRuns

        protected final java.util.Map<org.w3c.dom.Text,​java.lang.Integer> textRuns

      • cssDirection

        protected final IdentValue cssDirection

      • actualDirection

        private byte actualDirection

    • Constructor Detail

      • Paragraph

        private Paragraph​(IdentValue direction)

      • Paragraph

        private Paragraph​(IdentValue direction,
                  boolean isLiveImplementation)

    • Method Detail

      • add

        protected void add​(java.lang.String text,
                   org.w3c.dom.Text textNode)
        Here we add a textnode and its postion to a list. We also build the paragraph string.

      • runBidiSplitter

        protected void runBidiSplitter​(BidiSplitter splitter,
                               LayoutContext c)
        Here we call out to the actual BIDI algorithm.

      • getFirstCharIndexInParagraph

        public int getFirstCharIndexInParagraph​(org.w3c.dom.Text text)
        Returns:
        the first char index into this paragraph from a Text node or -1 if not available.

      • copySplitPointsFromBidiSplitter

        private void copySplitPointsFromBidiSplitter​(BidiSplitter splitter)
        Here we copy the split points from the BIDI processor to our tree map for easy access.

      • nextSplit

        public BidiTextRun nextSplit​(int startIndexInParagraph)
        Returns:
        the BidiTextRun that starts at or above startIndexInPararagraph.

      • prevSplit

        public BidiTextRun prevSplit​(int startIndexInParagraph)
        Returns:
        the BidiTextRun that starts at or before startIndexInParagraph.

      • getActualDirection

        public byte getActualDirection()

      • getCSSDirection

        public IdentValue getCSSDirection()