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# coding: utf-8
=begin
* Name: SiSU
* Description: a framework for document structuring, publishing and search
* Author: Ralph Amissah
* Copyright: (C) 1997 - 2010, Ralph Amissah, All Rights Reserved.
* License: GPL 3 or later:
SiSU, a framework for document structuring, publishing and search
Copyright (C) Ralph Amissah
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option)
any later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
You should have received a copy of the GNU General Public License along with
this program. If not, see <http://www.gnu.org/licenses/>.
If you have Internet connection, the latest version of the GPL should be
available at these locations:
<http://www.fsf.org/licensing/licenses/gpl.html>
<http://www.gnu.org/copyleft/gpl.html>
<http://www.jus.uio.no/sisu/gpl.fsf/toc.html>
<http://www.jus.uio.no/sisu/gpl.fsf/doc.html>
<http://www.jus.uio.no/sisu/gpl.fsf/plain.txt>
* SiSU uses:
* Standard SiSU markup syntax,
* Standard SiSU meta-markup syntax, and the
* Standard SiSU object citation numbering and system
* Hompages:
<http://www.jus.uio.no/sisu>
<http://www.sisudoc.org>
* Download:
<http://www.jus.uio.no/sisu/SiSU/download.html>
* Ralph Amissah
<ralph@amissah.com>
<ralph.amissah@gmail.com>
** Description: system environment, resource control and configuration details
=end
module SiSU_images
class Images
def initialize(md,data)
@md,@data=md,data
end
def images
data=@data
tuned_file=[]
@rmgk=false
imagemagick_=SiSU_Env::Info_settings.new.program?('rmagick')
if imagemagick_
begin
@rmgk=SiSU_Env::Load.new('RMagick').prog
rescue
@rmgk=false
end
else
if @md.cmd =~/[vVM]/
tell=SiSU_Screen::Ansi.new(@md.cmd,'use of RMagick is not enabled in sisurc.yml')
tell.warn
end
end
data.each do |para|
para.strip!
if para =~/#{Mx[:lnk_o]}\s*\S+\.(?:png|jpg|gif)(?:\s*|\s+.+)?#{Mx[:lnk_c]}(?:(?:https?|file|ftp):\S+|image)/
if para !~/#{Mx[:lnk_o]}\s*\S+\.(?:png|jpg|gif)\s+\d+x\d+\s+/
m=/#{Mx[:lnk_o]}\s*(\S+\.(?:png|jpg|gif))/
if imagemagick_
imgs=para.scan(m).flatten
img_col=img_row=nil
images=imgs.each do |image|
dir=SiSU_Env::Info_env.new(@md.fns)
path_image=[dir.path.image_source_local_tex,dir.path.image_source_remote_tex,dir.path.image_source_tex]
image_path=nil
path_image.each do |image_path|
break if FileTest.exist?("#{image_path}/#{image}")
end
if FileTest.exist?("#{image_path}/#{image}")
if @rmgk
img=Magick::ImageList.new("#{image_path}/#{image}")
img_col,img_row=img.columns,img.rows
else
if @md.cmd =~/[vVM]/
tell=SiSU_Screen::Ansi.new(@md.cmd,'RMagick not present, will attempt to use imagemagick (identify) directly')
tell.warn
end
imgsys=`identify #{image_path}/#{image}`.strip #system call
img_col,img_row=/(\d+)x(\d+)/m.match(imgsys)[1,2]
img_col,img_row=img_col.to_i,img_row.to_i
end
row=(img && defined? img.rows) ? img.rows : img_row
col=(img && defined? img.columns) ? img.columns : img_col
if img_col > img_row #landscape
if img_col> 640 #480
img_col=640 #480
img_row=((1.00*img_col/col)*row).round
end
else #portrait
if img_col> 640 #480
img_col=640 #480
img_row=((1.00*img_col/col)*row).round
end
if img_row > 640
img_row=640
img_col=((1.00*img_row/row)*col).round
end
end
para.gsub!(/(#{image})/,"#{image} #{img_col}x#{img_row}")
else para.gsub!(/#{Mx[:lnk_o]}\s*(\S+)\.(png|jpg|gif).+?#{Mx[:lnk_c]}((?:https?|file|ftp):\S+|image)/,'[ \1 (\2 missing) ]')
end
end
else
images=para.scan(m) do |image|
tell=SiSU_Screen::Ansi.new(@md.cmd,'where image dimensions have not been provided RMagick is required',image)
tell.warn #unless @opt.cmd =~/q/
end
end
end
end
para.gsub!(/(#{Mx[:lnk_o]})\s*(\S+\.(?:png|jpg|gif))\s+/i,'\1\2 ') if para =~/#{Mx[:lnk_o]}\s*\S+\.(?:png|jpg|gif).+?#{Mx[:lnk_c]}(?:(?:https?|file|ftp):\S+|image)/
tuned_file << para unless para.nil?
end
tuned_file
end
end
end
__END__
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