Class: Lutaml::Ea::Diagram::StyleParser

Inherits:
Object
  • Object
show all
Defined in:
lib/lutaml/ea/diagram/style_parser.rb

Overview

Style parser for EA diagram formats

  • matches Enterprise Architect’s exact visual style

This parser converts EA-specific style information into CSS-compatible properties that exactly match EA’s visual output.

Constant Summary collapse

EA_COLORS =

EA’s exact color scheme from real SVG analysis

{
  # Element background colors
  class_fill: "#FFFFCC",           # Light yellow for classes
  datatype_fill: "#FFCCFF",        # Light pink for data types
  type_fill: "#CCFFCC",            # Light green for types
  package_fill: "#FFFFFF",         # White for packages
  enumeration_fill: "#FFFFCC",     # Same as classes
  interface_fill: "#FFFFCC",       # Same as classes

  # Text colors
  text_normal: "#000000",          # Black for normal text
  text_italic: "#000000",          # Black for italic text
  text_bold: "#000000",            # Black for bold text
  # Dark blue for small text (like in legend)
  text_small: "#003060",

  # Border colors
  border_normal: "#000000",        # Black borders
  border_compartment: "#000000",   # Black compartment lines

  # Background
  diagram_background: "#FFFFFF", # Pure white background

  # Special colors for different element types
  legend_gml: "#A0FFC0",           # Light green for GML legend
  legend_citygml: "#FFFFCC",       # Light yellow for CityGML legend
  # Dark blue background for legend text
  legend_text_background: "#003060",
}.freeze
EA_TYPOGRAPHY =

EA’s exact typography from real SVG analysis

{
  # Font families
  primary_font: "Cambria",
  secondary_font: "Carlito",

  # Font sizes (in points)
  normal_size: "7pt",
  small_size: "7pt",
  stereotype_size: "7pt",
  class_name_size: "7pt",
  attribute_size: "7pt",

  # Font weights
  normal_weight: "0",
  bold_weight: "700",

  # Font styles
  normal_style: "normal",
  italic_style: "italic",
}.freeze
EA_STROKES =

EA’s exact stroke styling

{
  border_width: "1",               # Main element borders
  compartment_width: "1",          # Compartment separator lines
  connector_width: "1",            # Connector lines

  # Line styling
  linecap: "round",
  linejoin: "bevel",
  shape_rendering: "auto",
}.freeze

Instance Method Summary collapse

Instance Method Details

#parse_connector_style(connector) ⇒ Hash

Parse connector style from EA data to match EA’s exact visual output

Parameters:

  • connector (Hash) —

    EA connector data

Returns:

  • (Hash) —

    CSS-compatible style properties that match EA exactly



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# File 'lib/lutaml/ea/diagram/style_parser.rb', line 107

def parse_connector_style(connector) # rubocop:disable Metrics/AbcSize,Metrics/MethodLength
  base_style = {
    stroke: EA_COLORS[:border_normal],
    stroke_width: EA_STROKES[:connector_width],
    stroke_linecap: EA_STROKES[:linecap],
    stroke_linejoin: EA_STROKES[:linejoin],
    fill: "none",
    shape_rendering: EA_STROKES[:shape_rendering],
  }

  # Apply connector type specific styling (EA has different styles for
  # different connectors)
  case connector[:type]
  when "generalization"
    base_style[:stroke_dasharray] = "5,5"
  when "aggregation"
    base_style[:stroke] = "#666666"
    base_style[:stroke_dasharray] = "10,5"
  when "composition"
    base_style[:stroke] = "#333333"
    base_style[:stroke_dasharray] = "10,5"
  when "dependency"
    base_style[:stroke] = "#999999"
    base_style[:stroke_dasharray] = "2,2"
  end

  # Parse EA style string if present
  if connector[:style]
    ea_style = parse_ea_style_string(connector[:style])
    base_style.merge!(ea_style)
  end

  base_style
end

#parse_element_style(element) ⇒ Hash

Parse element style from EA data to match EA’s exact visual output

Parameters:

  • element (Hash) —

    EA element data

Returns:

  • (Hash) —

    CSS-compatible style properties that match EA exactly



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# File 'lib/lutaml/ea/diagram/style_parser.rb', line 80

def parse_element_style(element) # rubocop:disable Metrics/MethodLength
  base_style = get_base_element_style(element[:type])

  # Apply EA-specific style overrides based on element analysis
  style = base_style.dup

  # Parse EA style string if present (EA uses specific format)
  if element[:style]
    ea_style = parse_ea_style_string(element[:style])
    style.merge!(ea_style)
  end

  # Apply stereotype-specific styling
  # (EA has specific colors for stereotypes)
  if element[:stereotype]
    style.merge!(stereotype_style(element[:stereotype]))
  end

  # Apply element-specific EA styling
  style.merge!(element_specific_style(element))

  style
end