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require 'rubyvis/scene/svg_panel'
require 'rubyvis/scene/svg_bar'
require 'rubyvis/scene/svg_rule'
require 'rubyvis/scene/svg_label'
require 'rubyvis/scene/svg_line'
require 'rubyvis/scene/svg_dot'
require 'rubyvis/scene/svg_area'
require 'rubyvis/scene/svg_wedge'
require 'rubyvis/scene/svg_image'
require 'rubyvis/scene/svg_curve'
class REXML::Element #:nodoc:
attr_accessor :_scene
# 1 number based
def get_element(i)
elements[i]
end
def set_attributes(h)
h.each do |k,v|
attributes[k]=v
end
end
#private :attributes
#private :elements
end
module Nokogiri
module XML
class Node
attr_accessor :_scene
def add_element(c)
add_child(c)
end
def set_attributes(h)
h.each do |k,v|
set_attribute(k,v.to_s)
end
end
def get_element(i)
elements.empty? ? nil : elements[i-1]
end
#private :elements
#private :attributes
def next_sibling_node
next_sibling
end
def delete_attribute(name)
remove_attribute(name)
end
def text
content
end
def text=(v)
self.content=v
end
end
end
end
module Rubyvis
module SvgScene # :nodoc:
#include REXML
def self.svg
"http://www.w3.org/2000/svg"
end;
def self.xmlns
"http://www.w3.org/2000/xmlns"
end
def self.xlink
"http://www.w3.org/1999/xlink"
end
def self.xhtml
"http://www.w3.org/1999/xhtml"
end
@scale=1
def self.scale
@scale
end
def self.scale=(v)
@scale=v
end
IMPLICIT={:svg=>{
"shape-rendering"=> "auto",
"pointer-events"=> "painted",
"x"=> 0,
"y"=> 0,
"dy"=> 0,
"text-anchor"=> "start",
"transform"=> "translate(0,0)",
#"fill"=> "none",
"fill-opacity"=> 1,
"stroke"=> "none",
"stroke-opacity"=> 1,
"stroke-width"=> 1.5,
"stroke-linejoin"=> "miter"
},:css=>{"font"=>"10px sans-serif"}
}
def self.update_all(scenes)
puts "update_all: #{scenes.inspect}" if $DEBUG
if (scenes.size>0 and scenes[0].reverse and scenes.type!='line' and scenes.type!='area')
scenes=scenes.reverse
end
self.remove_siblings(self.send(scenes.type, scenes))
end
def self.remove_siblings(e)
while(e)
n=e.next_sibling_node
e.remove
e=n
end
end
def self.create(type)
if Rubyvis.xml_engine==:nokogiri
el=Rubyvis.nokogiri_document.create_element("#{type}")
if type=='svg'
el.add_namespace(nil, self.svg)
el.add_namespace('xlink', self.xlink)
end
else
el=REXML::Element.new "#{type}"
if type=='svg'
el.add_namespace(self.svg)
#el.add_namespace("xmlns:xmlns", self.xmlns)
el.add_namespace("xmlns:xlink", self.xlink)
end
end
el
end
def self.append(e,scenes,index)
e._scene=OpenStruct.new({:scenes=>scenes, :index=>index})
e=self.title(e, scenes[index])
if(!e.parent)
scenes._g.add_element(e)
end
e.next_sibling_node
end
# Applies a title tooltip to the specified element <tt>e</tt>, using the
# <tt>title</tt> property of the specified scene node <tt>s</tt>. Note that
# this implementation does not create an SVG <tt>title</tt> element as a child
# of <tt>e</tt>; although this is the recommended standard, it is only
# supported in Opera. Instead, an anchor element is created around the element
# <tt>e</tt>, and the <tt>xlink:title</tt> attribute is set accordingly.
#
# @param e an SVG element.
# @param s a scene node.
def self.title(e,s)
a = e.parent
a=nil if (a and (a.name != "a"))
if (s.title)
if (!a)
a = self.create("a")
e.parent.replace_child(a, e) if (e.parent)
a.add_element(e)
end
#a.add_attribute('xlink:title',s.title)
a.set_attributes('xlink:title' => s.title)
return a;
end
a.parent_node.replace_child(e, a) if (a)
e
end
def self.expect(e, type, attributes, style=nil)
if (e)
#e = e.elements[1] if (e.name == "a")
e=e.get_element(1) if (e.name == 'a')
if (e.name != type)
n = self.create(type);
e.parent.replace_child(e, n);
e = n
end
else
e = self.create(type)
end
attributes.each {|name,value|
value = nil if (value == IMPLICIT[:svg][name])
if (value.nil?)
e.delete_attribute(name)
else
e.set_attributes(name=>value)
#e.attributes[name]=value
end
}
if(style)
base_style=e.attributes['style']
base_style||=""
array_styles={}
base_style.split(";").each {|v|
v=~/\s*(.+)\s*:\s*(.+)/
array_styles[$1]=$2
}
style.each {|name,value|
value=nil if value==IMPLICIT[:css][name]
if (value.nil?)
array_styles.delete(name)
else
array_styles[name]=value
end
}
if array_styles.size>0
#e.attributes["style"]=array_styles.map {|k,v| "#{k}:#{v}"}.join(";")
e.set_attributes('style'=> array_styles.map {|k,v| "#{k}:#{v}"}.join(";"))
end
end
e
end
end
end
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