diff options
Diffstat (limited to 'vendor/plugins/rfpdf/lib/fpdf/fpdf_eps.rb')
| -rw-r--r-- | vendor/plugins/rfpdf/lib/fpdf/fpdf_eps.rb | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/vendor/plugins/rfpdf/lib/fpdf/fpdf_eps.rb b/vendor/plugins/rfpdf/lib/fpdf/fpdf_eps.rb new file mode 100644 index 000000000..c6a224310 --- /dev/null +++ b/vendor/plugins/rfpdf/lib/fpdf/fpdf_eps.rb @@ -0,0 +1,139 @@ +# Information +# +# PDF_EPS class from Valentin Schmidt ported to ruby by Thiago Jackiw (tjackiw@gmail.com) +# working for Mingle LLC (www.mingle.com) +# Release Date: July 13th, 2006 +# +# Description +# +# This script allows to embed vector-based Adobe Illustrator (AI) or AI-compatible EPS files. +# Only vector drawing is supported, not text or bitmap. Although the script was successfully +# tested with various AI format versions, best results are probably achieved with files that +# were exported in the AI3 format (tested with Illustrator CS2, Freehand MX and Photoshop CS2). +# +# ImageEps(string file, float x, float y [, float w [, float h [, string link [, boolean useBoundingBox]]]]) +# +# Same parameters as for regular FPDF::Image() method, with an additional one: +# +# useBoundingBox: specifies whether to position the bounding box (true) or the complete canvas (false) +# at location (x,y). Default value is true. +# +# First added to the Ruby FPDF distribution in 1.53c +# +# Usage is as follows: +# +# require 'fpdf' +# require 'fpdf_eps' +# pdf = FPDF.new +# pdf.extend(PDF_EPS) +# pdf.ImageEps(...) +# +# This allows it to be combined with other extensions, such as the bookmark +# module. + +module PDF_EPS + def ImageEps(file, x, y, w=0, h=0, link='', use_bounding_box=true) + data = nil + if File.exists?(file) + File.open(file, 'rb') do |f| + data = f.read() + end + else + Error('EPS file not found: '+file) + end + + # Find BoundingBox param + regs = data.scan(/%%BoundingBox: [^\r\n]*/m) + regs << regs[0].gsub(/%%BoundingBox: /, '') + if regs.size > 1 + tmp = regs[1].to_s.split(' ') + @x1 = tmp[0].to_i + @y1 = tmp[1].to_i + @x2 = tmp[2].to_i + @y2 = tmp[3].to_i + else + Error('No BoundingBox found in EPS file: '+file) + end + f_start = data.index('%%EndSetup') + f_start = data.index('%%EndProlog') if f_start === false + f_start = data.index('%%BoundingBox') if f_start === false + + data = data.slice(f_start, data.length) + + f_end = data.index('%%PageTrailer') + f_end = data.index('showpage') if f_end === false + data = data.slice(0, f_end) if f_end + + # save the current graphic state + out('q') + + k = @k + + # Translate + if use_bounding_box + dx = x*k-@x1 + dy = @hPt-@y2-y*k + else + dx = x*k + dy = -y*k + end + tm = [1,0,0,1,dx,dy] + out(sprintf('%.3f %.3f %.3f %.3f %.3f %.3f cm', + tm[0], tm[1], tm[2], tm[3], tm[4], tm[5])) + + if w > 0 + scale_x = w/((@x2-@x1)/k) + if h > 0 + scale_y = h/((@y2-@y1)/k) + else + scale_y = scale_x + h = (@y2-@y1)/k * scale_y + end + else + if h > 0 + scale_y = $h/((@y2-@y1)/$k) + scale_x = scale_y + w = (@x2-@x1)/k * scale_x + else + w = (@x2-@x1)/k + h = (@y2-@y1)/k + end + end + + if !scale_x.nil? + # Scale + tm = [scale_x,0,0,scale_y,0,@hPt*(1-scale_y)] + out(sprintf('%.3f %.3f %.3f %.3f %.3f %.3f cm', + tm[0], tm[1], tm[2], tm[3], tm[4], tm[5])) + end + + data.split(/\r\n|[\r\n]/).each do |line| + next if line == '' || line[0,1] == '%' + len = line.length + # next if (len > 2 && line[len-2,len] != ' ') + cmd = line[len-2,len].strip + case cmd + when 'm', 'l', 'v', 'y', 'c', 'k', 'K', 'g', 'G', 's', 'S', 'J', 'j', 'w', 'M', 'd': + out(line) + + when 'L': + line[len-1,len]='l' + out(line) + + when 'C': + line[len-1,len]='c' + out(line) + + when 'f', 'F': + out('f*') + + when 'b', 'B': + out(cmd + '*') + end + end + + # restore previous graphic state + out('Q') + Link(x,y,w,h,link) if link + end +end |