Class SvgTextUtil

java.lang.Object
com.itextpdf.svg.utils.SvgTextUtil
public final class SvgTextUtil extends Object
Class containing utility methods for text operations in the context of SVG processing

  • Field Details

    • TEXT_DECORATION_LINE_THROUGH_Y_POS

      private static final float TEXT_DECORATION_LINE_THROUGH_Y_POS
      See Also:

    • TEXT_DECORATION_LINE_OVER_Y_POS

      private static final float TEXT_DECORATION_LINE_OVER_Y_POS
      See Also:

    • TEXT_DECORATION_LINE_UNDER_Y_POS

      private static final float TEXT_DECORATION_LINE_UNDER_Y_POS
      See Also:

  • Constructor Details

    • SvgTextUtil

      private SvgTextUtil()

  • Method Details

    • trimLeadingWhitespace

      public static String trimLeadingWhitespace(String toTrim)
      Trim all the leading whitespace characters from the passed string
      Parameters:
      toTrim - string to trim
      Returns:
      string with all leading whitespace characters removed

    • trimTrailingWhitespace

      public static String trimTrailingWhitespace(String toTrim)
      Trim all the trailing whitespace characters from the passed string
      Parameters:
      toTrim - string to trim
      Returns:
      string with al trailing whitespace characters removed

    • processWhiteSpace

      @Deprecated public static void processWhiteSpace(TextSvgBranchRenderer root, boolean isLeadingElement)
      Deprecated.
      use processWhiteSpace(TextSvgBranchRenderer, boolean, SvgDrawContext) instead
      Process the whitespace inside the Text Tree. Whitespace is collapsed and new lines are handled A leading element in each subtree is handled different: the preceding whitespace is trimmed instead of kept
      Parameters:
      root - root of the text-renderer subtree
      isLeadingElement - true if this element is a leading element(either the first child or the first element after an absolute position change)

    • processWhiteSpace

      public static void processWhiteSpace(TextSvgBranchRenderer root, boolean isLeadingElement, SvgDrawContext context)
      Process the whitespace inside the Text Tree. Whitespace is collapsed and new lines are handled A leading element in each subtree is handled different: the preceding whitespace is trimmed instead of kept
      Parameters:
      root - root of the text-renderer subtree
      isLeadingElement - true if this element is a leading element(either the first child or the first element after an absolute position change)
      context - the svg draw context

    • isOnlyWhiteSpace

      public static boolean isOnlyWhiteSpace(String s)
      Check if the String is only composed of whitespace characters
      Parameters:
      s - string to check
      Returns:
      true if the string only contains whitespace characters, false otherwise

    • resolveFontSize

      @Deprecated public static float resolveFontSize(ISvgTextNodeRenderer renderer, float parentFontSize)
      Deprecated.
      will be removed together with TextLeafSvgNodeRenderer.getTextContentLength(float, PdfFont)
      Resolve the font size stored inside the passed renderer
      Parameters:
      renderer - renderer containing the font size declaration
      parentFontSize - parent font size to fall back on if the renderer does not contain a font size declarations or if the stored declaration is invalid
      Returns:
      float containing the font-size, or the parent font size if the renderer's declaration cannot be resolved

    • filterReferenceValue

      public static String filterReferenceValue(String name)
      The reference value may contain a hashtag character or 'url' designation and this method will filter them.
      Parameters:
      name - value to be filtered
      Returns:
      filtered value

    • applyTextDecoration

      public static void applyTextDecoration(ISvgTextNodeRenderer renderer, boolean doFill, boolean doStroke, SvgDrawContext context)
      Processes text-decoration attribute which is shorthand for text-decoration-line and text-decoration-style.

      Note, that text-decoration from styles (resolved in SvgStyleResolver) takes precedence when both are specified.

      Parameters:
      renderer - to apply text-decoration for
      doFill - boolean specifying whether text should be filled
      doStroke - boolean specifying whether text should be stroked
      context - current SVG draw context

    • addUnderline

      private static void addUnderline(SvgDrawContext context, List<Underline> underlineList, Color strokeColor, float strokeOpacity, Color fillColor, float fillOpacity, float textDecorationLine, boolean doFill, boolean doStroke)