Class: Redwood::HorizontalSelector

Inherits:

Object

• Object
• Redwood::HorizontalSelector

show all

Defined in:

lib/sup/horizontal-selector.rb

Instance Attribute Summary (collapse)

• - (Object) label

  Returns the value of attribute label.

Instance Method Summary (collapse)

• - (HorizontalSelector) initialize(label, vals, labels, base_color = :horizontal_selector_unselected_color, selected_color = :horizontal_selector_selected_color) constructor

  A new instance of HorizontalSelector.

• - (Object) line(width = nil)
• - (Object) roll_left
• - (Object) roll_right
• - (Object) set_to(val)
• - (Object) val

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# File 'lib/sup/horizontal-selector.rb', line 6

def initialize label, vals, labels, base_color=:horizontal_selector_unselected_color, selected_color=:horizontal_selector_selected_color
  @label = label
  @vals = vals
  @labels = labels
  @base_color = base_color
  @selected_color = selected_color
  @selection = 0
end

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# File 'lib/sup/horizontal-selector.rb', line 4

def label
  @label
end

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# File 'lib/sup/horizontal-selector.rb', line 19

def line width=nil
  label =
    if width
      sprintf "%#{width}s ", @label
    else
      "#{@label} "
    end

  [[@base_color, label]] + 
    (0 ... @labels.length).inject([]) do |array, i|
      array + [
        if i == @selection
          [@selected_color, @labels[i]]
        else
          [@base_color, @labels[i]]
        end] + [[@base_color, "  "]]
    end + [[@base_color, ""]]
end

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# File 'lib/sup/horizontal-selector.rb', line 38

def roll_left
  @selection = (@selection - 1) % @labels.length
end

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# File 'lib/sup/horizontal-selector.rb', line 42

def roll_right
  @selection = (@selection + 1) % @labels.length
end

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# File 'lib/sup/horizontal-selector.rb', line 15

def set_to val; @selection = @vals.index(val) end

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# File 'lib/sup/horizontal-selector.rb', line 17

def val; @vals[@selection] end