Class: ReportBuilder::Graph::HtmlJqplot

Inherits:
ElementBuilder show all
Defined in:
lib/reportbuilder/graph/html_jqplot.rb

Instance Method Summary collapse

Methods inherited from ElementBuilder

#initialize

Constructor Details

This class inherits a constructor from ReportBuilder::ElementBuilder

Instance Method Details

#axes_defaults ⇒ Object 



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# File 'lib/reportbuilder/graph/html_jqplot.rb', line 52

def axes_defaults
  hash_to_camel(@element.axes_defaults)
end

#generate ⇒ Object 



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# File 'lib/reportbuilder/graph/html_jqplot.rb', line 5

def generate()
  @builder.js(ReportBuilder::DATA_DIR+"/jqplot/excanvas.min.js")

  @builder.js(ReportBuilder::DATA_DIR+"/jqplot/jquery-1.4.2.min.js")
  @builder.js(ReportBuilder::DATA_DIR+"/jqplot/jquery.jqplot.min.js")
  @builder.css(ReportBuilder::DATA_DIR+"/jqplot/jquery.jqplot.css")
  anchor=@builder.graph_entry(@element.name)
  out="<a name='#{anchor}'></a><div id='graph_#{anchor}' style='width:#{@element.width}px; height:#{@element.height}px'> </div>"
  out+="
<script>
$.jqplot('graph_#{anchor}', #{@builder.parse_js(@element.series_data)},
"+@builder.parse_js(jqplot_options)+");
</script>"
  
  @builder.html(out)
end

#grid ⇒ Object 



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# File 'lib/reportbuilder/graph/html_jqplot.rb', line 69

def grid
  replace={:show=>:drawGridLine, :color=>:gridLineColor, :background_color=>:background}
  out=Hash.new
  @element.grid.each do |k,v|
    if replace.include? k
      out[replace[k]]=v
    else
      out[to_camel(k)]=v
    end
  end
  out
end

#hash_to_camel(h) ⇒ Object 



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# File 'lib/reportbuilder/graph/html_jqplot.rb', line 81

def hash_to_camel(h)
  out=Hash.new
  h.each do |k,v|
    out[to_camel(k)]=v
  end
  out
end

#jqplot_options ⇒ Object 



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# File 'lib/reportbuilder/graph/html_jqplot.rb', line 21

def jqplot_options
  opts=Hash.new
  opts[:title]=@element.title
  opts[:series]=series_options
  opts[:axesDefaults]=axes_defaults if @element.axes_defaults.size>0
  if @element.xaxis.size>0 or @element.yaxis.size>0
    opts[:axes]={:xaxis=>xaxis, :yaxis=>yaxis}
  end
  opts[:seriesDefaults]= series_defaults if @element.series_defaults.size>0
  opts[:legend]=legend  if @element.legend.size>0
  opts[:grid]=grid if @element.grid.size>0
  opts
end

#legend ⇒ Object 



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# File 'lib/reportbuilder/graph/html_jqplot.rb', line 61

def legend
  lo=@element.legend
  lo[:location]=lo.delete(:position) if lo[:position] 
  hash_to_camel(lo)
end

#series_defaults ⇒ Object 



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# File 'lib/reportbuilder/graph/html_jqplot.rb', line 66

def series_defaults
  series_js(@element.series_defaults)
end

#series_js(in_opt) ⇒ Object 



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# File 'lib/reportbuilder/graph/html_jqplot.rb', line 91

def series_js(in_opt)
  out_opt=Hash.new
  out_opt[:markerOptions]=Hash.new
  out_opt[:rendererOptions]=Hash.new
  in_opt.each_pair do |k,v|
    case k
      when :type
        set_type(out_opt, v)
      when :lines
        out_opt[:showLines]=v[:show] if v[:show]              
        v.each do |k1,v1|
          out_opt[to_camel(k1)]=v1
        end
      when :markers
        out_opt[:showMarker]=v[:show] if v[:show]
        v.each do |k1,v1|
          out_opt[:markerOptions][to_camel(k1)]=v1
        end
      when :bars
        v.each do |k1,v1|
          k1=("bar_"+k1.to_s) if [:padding, :margin, :direction, :width].include? k1
          out_opt[:rendererOptions][to_camel(k1)]=v1
        end              
      when :color
        if in_opt[:type]
          set_color(in_opt[:type], out_opt,v)
        else
          out_opt[k]=v
        end
      else
        out_opt[k]=v
    end
  end
  out_opt
end

#series_options ⇒ Object

Transform data options on jqPlot ones



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# File 'lib/reportbuilder/graph/html_jqplot.rb', line 138

def series_options
  @element.series_options.map do |in_opt|
    series_js(in_opt)
  end
end

#set_color(t, out_opt, v) ⇒ Object 



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# File 'lib/reportbuilder/graph/html_jqplot.rb', line 126

def set_color(t,out_opt,v)
  case t
    when :line
      out_opt[:color]=v
    when :scatter
      out_opt[:markerOptions][:color]=v
    when :bar
      out_opt[:rendererOptions][:color]=v
  end
end

#set_type(opt, v) ⇒ Object 



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# File 'lib/reportbuilder/graph/html_jqplot.rb', line 35

def set_type(opt,v)
  case v
  when :line
  when :pie
    @builder.js(ReportBuilder::DATA_DIR+"/jqplot/plugins/jqplot.pieRenderer.min.js")
    opt[:renderer]="$.jqplot.PieRenderer".to_sym
  when :scatter
    opt[:showLine]=false
    opt[:showMarker]=true
  when :bar
    @builder.js(ReportBuilder::DATA_DIR+"/jqplot/plugins/jqplot.categoryAxisRenderer.min.js")
    @builder.js(ReportBuilder::DATA_DIR+"/jqplot/plugins/jqplot.barRenderer.min.js")
    opt[:renderer]="$.jqplot.BarRenderer".to_sym
  else
    raise "Type doesn't exists"
  end
end

#to_camel(k) ⇒ Object 



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# File 'lib/reportbuilder/graph/html_jqplot.rb', line 88

def to_camel(k)
  k.to_s.gsub(/_([a-z])/) {|s| s.upcase[1,1]}.to_sym
end

#xaxis ⇒ Object 



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# File 'lib/reportbuilder/graph/html_jqplot.rb', line 55

def xaxis
  hash_to_camel(@element.xaxis)
end

#yaxis ⇒ Object 



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# File 'lib/reportbuilder/graph/html_jqplot.rb', line 58

def yaxis
  hash_to_camel(@element.yaxis)
end