svg to temp bitmap work
This commit is contained in:
John Bintz
parent
93a540f5c1
commit
e355a34a17
2
Makefile
2
Makefile
@ -5,3 +5,5 @@ test :
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test-coverage :
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rcov -x '\/jruby\/lib\/' -x '\/tests\/data\/' `find tests -name '*.rb'`
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sed 's#<td class="left_align"><a href="<script>.html"><script></a></td>#<td></td>#' coverage/index.html > coverage/index.html.new
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mv coverage/index.html.new coverage/index.html
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@ -1,4 +1,4 @@
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require 'filter'
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require File.dirname(__FILE__) + '/Filter.rb'
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class InputFilter < Filter
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OutputFilename = "tmp.png"
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102
classes/SVGToTempBitmap.rb
Normal file
102
classes/SVGToTempBitmap.rb
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@ -0,0 +1,102 @@
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require File.dirname(__FILE__) + '/InputFilter.rb'
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class SVGToTempBitmap < InputFilter
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include PrintHandling
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#
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# select which build method to use based on the number of provided images.
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#
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def build(input)
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(input.instance_of? Array) ? multiple(input) : single(input)
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end
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#
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# process a single input file, possibly splitting it into two output files if it's a spread
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#
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def single(input)
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filename = Dir.pwd + '/' + OutputFilename
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inkscape(input, filename)
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@cleanup << filename
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if @config['spread']
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targets = build_spread(filename)
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@cleanup.concat targets
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return targets
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end
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return filename
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end
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def build_spread(filename)
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width, height = get_dimensions(filename)
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targets = []
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[ [ "left", 0 ], [ "right", width / 2 ] ].each do |side, offset|
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target = filename + "-#{side}.png"
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command = [
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"\"#{filename}\"",
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"-gravity Northwest",
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"-crop #{width/2}x#{height}+#{offset}+0",
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"+repage",
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"\"#{target}\""
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]
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convert(command)
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targets << target
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end
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return targets
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end
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#
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# combine multiple input files onto a single page-sized canvas.
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# images are added left-to-right and top-to-bottom starting from the top-left of the page.
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# leave a grid square blank by passing the filename "/blank".
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#
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def multiple(files)
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if @config['spread']; raise "Spreads and grids combined do not make sense"; end
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width, height = @config['grid'].split("x").collect { |f| f.to_f }
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joined_files = []
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page_width, page_height = calculate_page_size
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grid_width = page_width / width
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grid_height = page_height / height
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0.upto(files.length - 1) do |i|
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x = i % width
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y = (i / width).floor
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if files[i].split('/').last != "blank"
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tmp_svg_output = OutputFilename + "-#{i}.png"
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inkscape(Dir.pwd + '/' + files[i], tmp_svg_output)
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joined_files << [ tmp_svg_output, x, y ]
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@cleanup << tmp_svg_output
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end
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end
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command = [
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"-size #{page_width}x#{page_height}",
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"xc:white"
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]
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joined_files.each do |file, x, y|
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image_width, image_height = get_dimensions(file)
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x_offset = (grid_width - image_width) / 2
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y_offset = (grid_height - image_height) / 2
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command << "\"#{file}\" -geometry +#{x * grid_width + x_offset}+#{y * grid_height + y_offset} -composite"
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end
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command << OutputFilename
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convert(command)
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@cleanup << OutputFilename
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OutputFilename
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end
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end
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@ -7,102 +7,6 @@ Dir[File.dirname(__FILE__) + "/classes/*.rb"].each do |file|
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require file
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end
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class SVGToTempBitmap < InputFilter
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include PrintHandling
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#
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# select which build method to use based on the number of provided images.
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#
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def build(input)
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(input.instance_of? Array) ? multiple(input) : single(input)
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end
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#
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# process a single input file, possibly splitting it into two output files if it's a spread
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#
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def single(input)
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filename = Dir.pwd + '/' + OutputFilename
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inkscape(input, filename)
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@cleanup << filename
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if @config['spread']
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width, height = get_dimensions(filename)
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targets = []
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[ [ "left", 0 ], [ "right", width / 2 ] ].each do |side, offset|
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target = filename + "-#{side}.png"
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command = [
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"\"#{filename}\"",
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"-gravity Northwest",
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"-crop #{width/2}x#{height}+#{offset}+0",
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"+repage",
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"\"#{target}\""
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]
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convert(command)
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targets << target
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@cleanup << target
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end
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return targets
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end
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return filename
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end
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#
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# combine multiple input files onto a single page-sized canvas.
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# images are added left-to-right and top-to-bottom starting from the top-left of the page.
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# leave a grid square blank by passing the filename "/blank".
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#
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def multiple(files)
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if @config['spread']; raise "Spreads and grids combined do not make sense"; end
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width, height = @config['grid'].split("x").collect { |f| f.to_f }
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joined_files = []
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page_width, page_height = calculate_page_size
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grid_width = page_width / width
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grid_height = page_height / height
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0.upto(files.length - 1) do |i|
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x = i % width
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y = (i / width).floor
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if files[i].split('/').last != "blank"
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tmp_svg_output = OutputFilename + "-#{i}.png"
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inkscape(Dir.pwd + '/' + files[i], tmp_svg_output)
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joined_files << [ tmp_svg_output, x, y ]
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@cleanup << tmp_svg_output
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end
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end
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command = [
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"-size #{page_width}x#{page_height}",
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"xc:white"
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]
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joined_files.each do |file, x, y|
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image_width, image_height = get_dimensions(file)
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x_offset = (grid_width - image_width) / 2
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y_offset = (grid_height - image_height) / 2
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command << "\"#{file}\" -geometry +#{x * grid_width + x_offset}+#{y * grid_height + y_offset} -composite"
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end
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command << OutputFilename
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convert(command)
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@cleanup << OutputFilename
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OutputFilename
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end
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end
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#
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# Process an input file for the Web
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#
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28
tests/TestSVGToTempBitmap.rb
Normal file
28
tests/TestSVGToTempBitmap.rb
Normal file
@ -0,0 +1,28 @@
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require 'rubygems'
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require 'test/unit'
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require 'fakefs/safe'
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require File.dirname(__FILE__) + '/../classes/SVGToTempBitmap.rb'
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class TestSVGToTempBitmap < Test::Unit::TestCase
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def setup
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@filter = SVGToTempBitmap.new
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end
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def test_build
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[
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[ "", :single ],
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[ [], :multiple ]
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].each do |input, expected_method|
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@filter.expects(expected_method).with(input)
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@filter.build(input)
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end
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end
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def test_build_spread
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@filter.stubs(:get_dimensions).with('filename').returns([50, 75])
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@filter.expects(:convert).with(['"filename"', '-gravity Northwest', '-crop 25x75+0+0', '+repage', '"filename-left.png"'])
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@filter.expects(:convert).with(['"filename"', '-gravity Northwest', '-crop 25x75+25+0', '+repage', '"filename-right.png"'])
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assert_equal [ 'filename-left.png', 'filename-right.png' ], @filter.build_spread('filename')
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end
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end
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