SoundSoftware Code Site

# The MIT License

#

# Permission is hereby granted, free of charge, to any person obtaining a copy

# of this software and associated documentation files (the "Software"), to deal

# in the Software without restriction, including without limitation the rights

# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

# copies of the Software, and to permit persons to whom the Software is

# furnished to do so, subject to the following conditions:

#

# The above copyright notice and this permission notice shall be included in

# all copies or substantial portions of the Software.

#

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE

# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

# THE SOFTWARE.

#

# This implements native php methods used by tcpdf, which have had to be

# reimplemented within Ruby.

module RFPDF

  # http://uk2.php.net/getimagesize

  def getimagesize(filename)

    image = Magick::ImageList.new(filename)

    out = Hash.new

    out[0] = image.columns

    out[1] = image.rows

    # These are actually meant to return integer values But I couldn't seem to find anything saying what those values are.

    # So for now they return strings. The only place that uses this at the moment is the parsejpeg method, so I've changed that too.

    case image.mime_type

    when "image/gif"

      out[2] = "GIF"

    when "image/jpeg"

      out[2] = "JPEG"

    when "image/png"

      out[2] = "PNG"

    when " 	image/vnd.wap.wbmp"

      out[2] = "WBMP"

    when "image/x-xpixmap"

      out[2] = "XPM"

    end

    out[3] = "height=\"#{image.rows}\" width=\"#{image.columns}\""

    out['mime'] = image.mime_type

    # This needs work to cover more situations

    # I can't see how to just list the number of channels with ImageMagick / rmagick

    if image.colorspace.to_s == "CMYKColorspace"

        out['channels'] = 4

    elsif image.colorspace.to_s == "RGBColorspace"

      out['channels'] = 3

    end

    out['bits'] = image.channel_depth

    out

  end

end