Class: Ccharts::Settings::BarSettings

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

Overview

bar

Instance Method Summary collapse

Constructor Details

#initialize ⇒ BarSettings

Returns a new instance of BarSettings.



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# File 'lib/ccharts/settings.rb', line 182

def initialize
  @rise = nil
  @bg = nil
  @show_labels = false
  @show_prices = false
  @plain = false
end

Instance Method Details

#background(v) ⇒ Object 



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# File 'lib/ccharts/settings.rb', line 191

def background(v); @bg = v; self; end

#plain(v) ⇒ Object 



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# File 'lib/ccharts/settings.rb', line 194

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

#rise(v) ⇒ Object 



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# File 'lib/ccharts/settings.rb', line 190

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

#show_labels(v) ⇒ Object 



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# File 'lib/ccharts/settings.rb', line 192

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

#show_prices(v) ⇒ Object 



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# File 'lib/ccharts/settings.rb', line 193

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

#to_ffi ⇒ Object 



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# File 'lib/ccharts/settings.rb', line 196

def to_ffi
  s = FFI::BarSettings.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(:bg_color, @bg)
  s[:show_labels] = @show_labels ? 1 : 0
  s[:show_prices] = @show_prices ? 1 : 0
  [s, keep]
end