Class: CTioga2::MetaBuilder::Types::TiogaColorType
- Inherits:
-
CTioga2::MetaBuilder::Type
- Object
- CTioga2::MetaBuilder::Type
- CTioga2::MetaBuilder::Types::TiogaColorType
- Defined in:
- lib/ctioga2/metabuilder/types/styles.rb
Overview
A color for use with Tioga, ie a [red, green, blue] array of values between 0 and 1.0. It accepts HTML-like colors, or three comma-separated values between 0 and 1.
Constant Summary collapse
- HLSRegexp =
/(?:hls):/i
Instance Attribute Summary
Attributes inherited from CTioga2::MetaBuilder::Type
#namespace, #namespace_lookup, #passthrough, #re_shortcuts, #shortcuts, #type
Instance Method Summary collapse
Methods inherited from CTioga2::MetaBuilder::Type
#boolean?, #default_value, from_string, get_param_type, get_type, #initialize, #option_parser_long_option, #option_parser_option, #string_to_type, #type_name, type_name, #type_to_string
Constructor Details
This class inherits a constructor from CTioga2::MetaBuilder::Type
Instance Method Details
#parse_one_color(str) ⇒ Object
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 |
# File 'lib/ctioga2/metabuilder/types/styles.rb', line 35 def parse_one_color(str) if str =~ HLSRegexp hls = true str = str.gsub(HLSRegexp,'') else hls = false end if str =~ /^\s*#([0-9a-fA-F]{6})\s*$/ value = $1.scan(/../).map { |i| i.to_i(16)/255.0 } elsif str =~ /^\s*#([0-9a-fA-F]{3})\s*$/ value = $1.scan(/./).map { |i| i.to_i(16)/15.0 } else begin if Tioga::ColorConstants::const_defined?(str) value = Tioga::ColorConstants::const_get(str) return value end rescue end value = str.split(/\s*,\s*/).map do |s| s.to_f end end if value.size != 3 raise IncorrectInput, "You need exactly three values to make up a color" end if hls # Requires Tioga r599 value = Tioga::FigureMaker.hls_to_rgb(value) end return value end |
#string_to_type_internal(str) ⇒ Object
72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 |
# File 'lib/ctioga2/metabuilder/types/styles.rb', line 72 def string_to_type_internal(str) # We implement a xcolor-like color mix stuff elems = str.split(/!(\d+(?:\.\d+)?)!?/) if (elems.size % 2) == 0 elems << "White" # Implicit mix with white end temp = parse_one_color(elems.shift).dup while elems.size > 0 frac = elems.shift.to_f/100.0 new_color = parse_one_color(elems.shift) 3.times do |i| temp[i] = frac * temp[i] + (1 - frac) * new_color[i] end end return temp end |