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Versions: 31
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Contents
require "rabbit/utils"
Rabbit::Utils.require_safe "rsvg2"
require "rabbit/image/base"
module Rabbit
module ImageManipulable
class SVG < Base
unshift_loader(self)
class << self
def match?(filename)
File.open(filename) do |f|
/<svg|<!DOCTYPE\s+svg/ =~ f.read(200)
end
end
end
def draw(canvas, x, y, params={})
if @handle and canvas.rsvg_available?
default_params = {
:width => width,
:height => height,
}
canvas.draw_rsvg_handle(@handle, x, y, default_params.merge(params))
else
super
end
end
def pixbuf
@pixbuf ||= to_pixbuf(width, height)
end
private
def update_size
@handle = nil
rsvg_environment do |name|
if RSVG::Handle.respond_to?(:new_from_file)
@handle = RSVG::Handle.new_from_file(name)
dim = @handle.dimensions
@width = dim.width
@height = dim.height
else
@pixbuf = RSVG.pixbuf_from_file(name)
@width = @pixbuf.width
@height = @pixbuf.height
end
end
end
def filename
File.expand_path(@filename)
end
def rsvg_environment
dir = File.dirname(filename)
name = File.basename(filename)
Dir.chdir(dir) do
yield(name)
end
end
def to_pixbuf(w=nil, h=nil)
rsvg_environment do |name|
if w or h
RSVG.pixbuf_from_file_at_size(name, w || width, h || height)
else
RSVG.pixbuf_from_file(name)
end
end
end
end
end
end
Version data entries
31 entries across 31 versions & 1 rubygems