-- Module Style-Descriptors (T.415:03/1993)

Style-Descriptors {2 8 1 5 10} DEFINITIONS ::=
BEGIN

EXPORTS
  Presentation-Style-Descriptor, Presentation-Attributes, Content-Type,
    Content-Architecture-Class, Layout-Style-Descriptor, Fill-Order,
    Block-Alignment;

IMPORTS
  Object-or-Class-Identifier, Style-Identifier, Category-Name,
    Object-Id-Expression
    FROM Identifiers-and-Expressions --  see 7.8 
      
  Comment-String, Transparency, Colour, Border, Layout-Object-Type,
    Content-Background-Colour, Content-Foreground-Colour, Sealed
    FROM Layout-Descriptors --  see 7.9 
      
  Colour-Expression, Colour-Table
    FROM Colour-Attributes --  see 7.14
      
  Character-Attributes
    FROM Character-Presentation-Attributes {2 8 1 6 2
      } --  see ITU-T Rec. T.416 | ISO/IEC 8613-6
  Raster-Graphics-Attributes
    FROM Raster-Gr-Presentation-Attributes {2 8 1 7 2
      } --  see ITU-T Rec. T.417 | ISO/IEC 8613-7
  Geometric-Graphics-Attributes
    FROM Geo-Gr-Presentation-Attributes {2 8 1 8 2}; --  see ITU-T Rec. T.418 | ISO/IEC 8613-8

Presentation-Style-Descriptor ::= SET {
  style-identifier           Style-Identifier,
  user-readable-comments     [0] IMPLICIT Comment-String OPTIONAL,
  user-visible-name          [1] IMPLICIT Comment-String OPTIONAL,
  application-comments       [25] IMPLICIT OCTET STRING OPTIONAL,
  transparency               [2] IMPLICIT Transparency OPTIONAL,
  presentation-attributes    [3] IMPLICIT Presentation-Attributes OPTIONAL,
  colour                     [4] IMPLICIT Colour OPTIONAL,
  colour-of-layout-object    [29]  Colour-Expression OPTIONAL,
  object-colour-table        [30] IMPLICIT Colour-Table OPTIONAL,
  content-background-colour  [31]  Content-Background-Colour OPTIONAL,
  content-foreground-colour  [32]  Content-Foreground-Colour OPTIONAL,
  content-colour-table       [33] IMPLICIT Colour-Table OPTIONAL,
  border                     [5] IMPLICIT Border OPTIONAL,
  sealed                     [6] IMPLICIT Sealed OPTIONAL,
  derived-from               [7] IMPLICIT Style-Identifier OPTIONAL
}

Presentation-Attributes ::= SET {
  content-architecture-class
    CHOICE {a  Content-Architecture-Class,
            b  Content-Type} OPTIONAL,
  character-attributes           [0] IMPLICIT Character-Attributes OPTIONAL,
  raster-graphics-attributes
    [1] IMPLICIT Raster-Graphics-Attributes OPTIONAL,
  geometric-graphics-attributes
    [2] IMPLICIT Geometric-Graphics-Attributes OPTIONAL,
  --  the following tags are reserved for additional types
  --  of presentation attributes:
  --  [3] videotex, for use in conjunction with CCITT Recommendations
  --  [4] audio
  --  [5] dynamic-graphics
  ext-cont-arch-pres-attributes  [6] IMPLICIT SEQUENCE OF EXTERNAL OPTIONAL
}

Content-Type ::= [APPLICATION 2] IMPLICIT INTEGER {formatted-raster-graphics(1)
}

--  The integer representation for content architecture class,
--  Content-Type, is only to be used if the value of the document
--  profile attribute "document application profile" is an integer.
--  The value 'formatted-raster-graphics' represents the formatted raster
--  graphics content architecture as defined in ITU-T Rec. T.417 | ISO/IEC 8613-7.
Content-Architecture-Class ::= OBJECT IDENTIFIER

Layout-Style-Descriptor ::= SET {
  style-identifier        Style-Identifier,
  user-readable-comments  [0] IMPLICIT Comment-String OPTIONAL,
  user-visible-name       [1] IMPLICIT Comment-String OPTIONAL,
  application-comments    [25] IMPLICIT OCTET STRING OPTIONAL,
  layout-directives       [4] IMPLICIT Layout-Directives OPTIONAL,
  sealed                  [6] IMPLICIT Sealed OPTIONAL,
  derived-from            [7] IMPLICIT Style-Identifier OPTIONAL
}

Layout-Directives ::= SET {
  indivisibility
    CHOICE {to-layout-object-class  [0] IMPLICIT Object-or-Class-Identifier,
            to-layout-category      [1] IMPLICIT Category-Name,
            to-layout-object-type   [2] IMPLICIT Layout-Object-Type,
            null                    [15] IMPLICIT NULL} OPTIONAL,
  separation                   [3] IMPLICIT Separation OPTIONAL,
  offset                       [4] IMPLICIT Offset OPTIONAL,
  fill-order                   [5] IMPLICIT Fill-Order OPTIONAL,
  concatenation                [6] IMPLICIT Concatenation OPTIONAL,
  new-layout-object
    CHOICE {to-layout-object-class  [7] IMPLICIT Object-or-Class-Identifier,
            to-layout-category      [8] IMPLICIT Category-Name,
            to-layout-object-type   [9] IMPLICIT Layout-Object-Type,
            null                    [16] IMPLICIT NULL} OPTIONAL,
  same-layout-object           [10] IMPLICIT Same-Layout-Object OPTIONAL,
  layout-object-class
    [11] IMPLICIT Object-or-Class-Identifier OPTIONAL,
  logical-stream-category      [19] IMPLICIT Category-Name OPTIONAL,
  logical-stream-sub-category  [20] IMPLICIT Category-Name OPTIONAL,
  layout-category              [12] IMPLICIT Category-Name OPTIONAL,
  synchronization
    CHOICE {a  [13] IMPLICIT Object-or-Class-Identifier,
            b  [17]  Object-Id-Expression,
            c  [18] IMPLICIT NULL} OPTIONAL,
  block-alignment              [14] IMPLICIT Block-Alignment OPTIONAL,
  floatability-range           [24] IMPLICIT Floatability-Range OPTIONAL
}

Separation ::= SET {
  leading   [0] IMPLICIT INTEGER OPTIONAL,
  trailing  [1] IMPLICIT INTEGER OPTIONAL,
  centre    [2] IMPLICIT INTEGER OPTIONAL
}

Offset ::= SET {
  leading     [3] IMPLICIT INTEGER OPTIONAL,
  trailing    [2] IMPLICIT INTEGER OPTIONAL,
  left-hand   [1] IMPLICIT INTEGER OPTIONAL,
  right-hand  [0] IMPLICIT INTEGER OPTIONAL
}

Fill-Order ::= INTEGER {normal(0), reverse(1)}

Concatenation ::= INTEGER {non-concatenated(0), concatenated(1)}

Same-Layout-Object ::= SET {
  logical-object
    CHOICE {a  [0] IMPLICIT Object-or-Class-Identifier,
            b  [4]  Object-Id-Expression,
            c  [5] IMPLICIT NULL},
  layout-object
    CHOICE {d                        [1] IMPLICIT Object-or-Class-Identifier,
            to-stream-root-category  [6] IMPLICIT Category-Name,
            to-stream-sub-category   [7] IMPLICIT Category-Name,
            to-layout-category       [2] IMPLICIT Category-Name,
            e                        [3] IMPLICIT Layout-Object-Type} OPTIONAL
}

Floatability-Range ::= SET {
  forward-limit
    [0]  SEQUENCE {logical-object
                     CHOICE {a  [2] IMPLICIT Object-or-Class-Identifier,
                             b  [3]  Object-Id-Expression,
                             c  [4] IMPLICIT NULL},
                   layout-object
                     CHOICE {to-layout-object-class
                               [5] IMPLICIT Object-or-Class-Identifier,
                             to-stream-root-category
                               [6] IMPLICIT Category-Name,
                             to-stream-sub-category
                               [7] IMPLICIT Category-Name,
                             to-layout-category
                               [8] IMPLICIT Category-Name,
                             to-layout-object-type
                               [9] IMPLICIT Layout-Object-Type,
                             d                        [10] IMPLICIT NULL
                   } OPTIONAL} OPTIONAL,
  backward-limit
    [1]  SEQUENCE {logical-object
                     CHOICE {e  [2] IMPLICIT Object-or-Class-Identifier,
                             f  [3]  Object-Id-Expression,
                             g  [4] IMPLICIT NULL},
                   layout-object
                     CHOICE {to-layout-object-class
                               [5] IMPLICIT Object-or-Class-Identifier,
                             to-stream-root-category
                               [6] IMPLICIT Category-Name,
                             to-stream-sub-category
                               [7] IMPLICIT Category-Name,
                             to-layout-category
                               [8] IMPLICIT Category-Name,
                             to-layout-object-type
                               [9] IMPLICIT Layout-Object-Type,
                             h                        [10] IMPLICIT NULL
                   } OPTIONAL} OPTIONAL
}

Block-Alignment ::= INTEGER {right-hand(0), left-hand(1), centred(2), null(3)}

END

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