Class: Ccharts::Settings::SparkSettings

Inherits:
Object
  • Object
show all
Defined in:
lib/ccharts/settings.rb

Overview

sparkline

Instance Method Summary collapse

Constructor Details

#initialize ⇒ SparkSettings

Returns a new instance of SparkSettings.



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# File 'lib/ccharts/settings.rb', line 150

def initialize
  @rise = nil
  @area = nil
  @min_above = 0
  @min_below = 0
  @plain = false
end

Instance Method Details

#area(v) ⇒ Object 



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# File 'lib/ccharts/settings.rb', line 159

def area(v); @area = v; self; end

#min_above(v) ⇒ Object 



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# File 'lib/ccharts/settings.rb', line 160

def min_above(v); @min_above = v; self; end

#min_below(v) ⇒ Object 



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# File 'lib/ccharts/settings.rb', line 161

def min_below(v); @min_below = v; self; end

#plain(v) ⇒ Object 



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# File 'lib/ccharts/settings.rb', line 162

def plain(v); @plain = !!v; self; end

#rise(v) ⇒ Object 



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# File 'lib/ccharts/settings.rb', line 158

def rise(v); @rise = v; self; end

#to_ffi ⇒ Object 



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# File 'lib/ccharts/settings.rb', line 164

def to_ffi
  s = FFI::SparkSettings.malloc
  keep = []
  set = lambda do |field, val|
    p = FFI.color_ptr(val, @plain)
    keep << p
    s[field] = p.to_i
  end
  set.call(:rise_color, @rise)
  set.call(:area_color, @area)
  s[:min_above] = @min_above
  s[:min_below] = @min_below
  [s, keep]
end