lib/controller/pdf_builder.rb in lipsiadmin-3.2 vs lib/controller/pdf_builder.rb in lipsiadmin-3.3

@@ -1,9 +1,13 @@
 module Lipsiadmin
   module Controller
-    # This module convert a string/controller to a pdf through Pd4ml java library (included in this plugin)
+    # This module convert a string/controller to a pdf through Pd4ml java library (included in this plugin)-
     # 
+    # PD4ML is a powerful PDF generating tool that uses HTML and CSS (Cascading Style Sheets) as page layout 
+    # and content definition format. Written in 100% pure Java, it allows users to easily add PDF generation 
+    # functionality to end products.
+    # 
     # For generate a pdf you can simply do
     #   
     #     script/generate pdf invoice
     # 
     # then edit your template /app/views/pdf/invoice.html.haml
@@ -16,20 +20,35 @@
     # 
     # Possible options are:
     # 
     # * landescape, default it's false
     # * send_data,  default it's true
-    #   
+    # 
+    # Lipsiadmin include a trial fully functional evaluation version, but if you want buy it, 
+    # go here: http://pd4ml.com/buy.htm and then put your licensed jar in a directory in your
+    # project then simply calling this:
+    # 
+    #   Lipsiadmin::Utils::PdfBuilder::JARS_PATH = "here/is/my/licensed/pd4ml"
+    # 
+    # you can use your version without any problem.
+    # 
+    # By default Lipsiadmin will look into your "vendor/pd4ml" and if:
+    # 
+    # * pd4ml.jar
+    # * ss_css2.jar
+    # 
+    # are present will use it
+    # 
     module PdfBuilder
       include Lipsiadmin::Utils::HtmlEntities
       
-      # Path to the pd4ml jarfile        
-      JARPATH = "../../resources"
-
-      # Convert a stream to pdf, the template must be located in app/view/pdf/yourtemplate.pdf.erb
+      # # Convert a stream to pdf, the template must be located in app/view/pdf/yourtemplate.pdf.erb
       def render_pdf(template, filename=nil, options={})
 
+        # path to the pd4ml jarfile
+        jars_path = Lipsiadmin::Utils::PdfBuilder::JARS_PATH
+        
         options[:landescape] ||= true
         options[:send_data]  ||= !filename.blank?
         # encode the template
         input = encode_entities(render(:template => "/pdf/#{template}.html.haml", :layout => "print"))
         
@@ -39,15 +58,15 @@
 
         # search for images src, append full-path.
         input.gsub!('src="/', 'src="' + RAILS_ROOT + '/public/')
         input.gsub!('url(','url('+RAILS_ROOT+'/public')
 
-        cmd = "java -Xmx512m -Djava.awt.headless=true -cp pd4ml.jar:.:#{File.dirname(__FILE__)}/#{JARPATH} Pd4Ruby '#{input}' 950 A4 #{options[:landescape]}"
+        cmd = "java -Xmx512m -Djava.awt.headless=true -cp #{jars_path}/pd4ml.jar:.:#{jars_path} Pd4Ruby '#{input}' 950 A4 #{options[:landescape]}"
 
-        output = %x[cd #{File.dirname(__FILE__)}/#{JARPATH} \n #{cmd}]
+        output = %x[cd #{Lipsiadmin::Utils::PdfBuilder::PD4RUBY_PATH} \n #{cmd}]
 
         # raise error if process returned false (ie: a java error)
-        raise PdfError, "An unknonwn error occurred while generating pdf: cd #{File.dirname(__FILE__)}/#{JARPATH} #{cmd}" if $?.success? === false
+        raise PdfError, "An unknonwn error occurred while generating pdf: cd #{Lipsiadmin::Utils::PdfBuilder::PD4RUBY_PATH} && #{cmd}" if $?.success? === false
         
         # return raw pdf binary-stream
         if options[:send_data]
           pdf_options  = { :filename => filename, :type => 'application/pdf' }
           pdf_options[:disposition] = "inline" if Rails.env == "development"
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