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Diffstat (limited to 'lib/sisu/v2/dal_images.rb')
| -rw-r--r-- | lib/sisu/v2/dal_images.rb | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/lib/sisu/v2/dal_images.rb b/lib/sisu/v2/dal_images.rb new file mode 100644 index 00000000..1e474010 --- /dev/null +++ b/lib/sisu/v2/dal_images.rb @@ -0,0 +1,158 @@ +# 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 + #require 'RMagick' + #include Magick + 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 |dob| + unless dob.is =~/^table/ + dob.obj.strip! + if dob.obj =~/#{Mx[:lnk_o]}\s*\S+\.(?:png|jpg|gif)(?:\s*|\s+.+)?#{Mx[:lnk_c]}(?:#{Mx[:url_o]}\S+?#{Mx[:url_c]}|image)/ + if dob.obj !~/#{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=dob.obj.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 + imgk=SiSU_Env::System_call.new.imagemagick + gmgk=SiSU_Env::System_call.new.graphicksmagick + if imgk or gmgk + if imgk + imgsys=`identify #{image_path}/#{image}`.strip #system call + elsif gmgk + imgsys=`gm identify #{image_path}/#{image}`.strip #system call + end + 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 + 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 + img_col=640 + img_row=((1.00*img_col/col)*row).round + end + else #portrait + if img_col> 640 + img_col=640 + 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 + dob.obj.gsub!(/(#{image})/,"#{image} #{img_col}x#{img_row}") + else dob.obj.gsub!(/#{Mx[:lnk_o]}\s*(\S+)\.(png|jpg|gif).+?#{Mx[:lnk_c]}(#{Mx[:url_o]}\S+?#{Mx[:url_c]}|image)/,'[ \1 (\2 missing) ]') + end + end + else + images=dob.obj.scan(m) do |image| + tell=SiSU_Screen::Ansi.new(@md.cmd,'where image dimensions have not been provided RMagick or imagemagick is required',image) + tell.warn #unless @opt.cmd =~/q/ + end + end + end + end + dob.obj.gsub!(/(#{Mx[:lnk_o]})\s*(\S+\.(?:png|jpg|gif))\s+/i,'\1\2 ') if dob.obj =~/#{Mx[:lnk_o]}\s*\S+\.(?:png|jpg|gif).+?#{Mx[:lnk_c]}(?:#{Mx[:url_o]}\S+?#{Mx[:url_c]}|image)/ + end + tuned_file << dob unless dob.nil? + end + tuned_file + end + end +end +__END__ +imgsys=`identify #{image_path}/#{image}`.strip |