Allow append dashes to have dash and dot line styles.
Segment length parameters were taken from cppcanvas, also restructure
the code to use the same appendDashes function.
Change-Id: I17c0796dbe722c4c6d5e91d0e318570a52a2514c
Reviewed-on: https://gerrit.libreoffice.org/62084
Tested-by: Jenkins
Reviewed-by: Mark Hung <marklh9@gmail.com>
Mark Hung
ae9f37ba75