Sha256: 95b12737acba66fd292ce2cd15cd1bde43a809ff83777efde3f94519dc27a26a
Contents?: true
Size: 789 Bytes
Versions: 22
Compression:
Stored size: 789 Bytes
Contents
module ChunkyPNG
class Canvas
# Methods to import a canvas from a PNG data URL.
module DataUrlImporting
# Imports a canvas from a PNG data URL.
# @param [String] string The data URL string to load from.
# @return [Canvas] The imported canvas.
# @raise ChunkyPNG::SignatureMismatch if the provides string is not a properly
# formatted PNG data URL (i.e. it should start with "data:image/png;base64,")
def from_data_url(string)
if string =~ %r[^data:image/png;base64,((?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?)$]
from_blob($1.unpack('m').first)
else
raise SignatureMismatch, "The string was not a properly formatted data URL for a PNG image."
end
end
end
end
end
Version data entries
22 entries across 20 versions & 5 rubygems