+
+; distances are given in stafflinethickness (thicknesses) and
+; staffspace (distances)
+
+(define all-element-descriptions
+ `((Arpeggio . (
+ (X-extent-callback . ,Arpeggio::width_callback)
+ (molecule-callback . ,Arpeggio::brew_molecule)
+ (Y-offset-callbacks . (,Staff_symbol_referencer::callback))
+ (X-offset-callbacks . (,Side_position::aligned_side))
+ (direction . -1)
+ (staff-position . 0.0)
+ (meta . ,(element-description "Arpeggio" arpeggio-interface side-position-interface))
+ ))
+
+ (BarLine . (
+ (break-align-symbol . Staff_bar)
+ (glyph . "|")
+ (break-glyph-function . ,default-break-barline)
+ (barsize-procedure . ,Bar::get_staff_bar_size)
+ (molecule-callback . ,Bar::brew_molecule)
+ (visibility-lambda . ,all-visible)
+ (breakable . #t)
+ (before-line-breaking-callback . ,Bar::before_line_breaking)
+ ;;
+ ;; Ross. page 151 lists other values, we opt for a leaner look
+ ;;
+ (kern . 3.0)
+ (thin-kern . 3.0)
+ (hair-thickness . 1.6)
+ (thick-thickness . 6.0)
+ (meta . ,(element-description "BarLine" bar-line-interface general-element-interface))
+ ))
+
+ (BarNumber . (
+ (molecule-callback . ,Text_item::brew_molecule)
+ (breakable . #t)
+ (visibility-lambda . ,begin-of-line-visible)
+ (padding . 1.0)
+ (direction . 1)
+ (properties-to-font-name . ,properties-to-font-name)
+ (style-to-font-name . ,style-to-font-name)
+ (markup-to-properties . ,markup-to-properties)
+ (font-family . roman)
+ (meta . ,(element-description "BarNumber"
+ text-interface general-element-interface break-aligned-interface))
+ ))
+
+ (Beam . ,basic-beam-properties)
+
+ (BreakAlignment . (
+ (breakable . #t)
+ (stacking-dir . 1)
+ (axes 0)
+ (X-offset-callbacks . (,Break_align_interface::self_align_callback))
+ (space-alist . ,default-break-align-space-alist)
+ (meta . ,(element-description "BreakAlignment"
+ axis-group-interface align-interface
+ )
+ )
+ ))
+
+ (BreakAlignGroup . (
+ (axes . (0))
+ (X-offset-callbacks . (,Break_align_interface::alignment_callback))
+
+ (meta . ,(element-description "BreakAlignGroup" axis-group-interface))
+ ))
+
+ (BreathingSign . (
+ (break-align-symbol . Breathing_sign)
+ (breakable . #t )
+ (molecule-callback . ,Breathing_sign::brew_molecule)
+ (Y-offset-callbacks . (,Breathing_sign::offset_callback))
+ (visibility-lambda . ,begin-of-line-invisible)
+ (meta . ,(element-description "BreathingSign" general-element-interface break-aligned-interface))
+ ))
+
+ (Clef . (
+ (molecule-callback . ,Score_element::brew_molecule)
+ (before-line-breaking-callback . ,Clef::before_line_breaking)
+ (breakable . #t)
+ (break-align-symbol . Clef_item)
+ (visibility-lambda . ,begin-of-line-visible)
+ (Y-offset-callbacks . (,Staff_symbol_referencer::callback))
+ (meta . ,(element-description "Clef" clef-interface break-aligned-interface general-element-interface))
+ ))
+
+ (ChordNames . (
+ (molecule-callback . ,Chord_name::brew_molecule)
+ (after-line-breaking-callback . ,Chord_name::after_line_breaking)
+ (chord-name-function . ,default-chord-name-function)
+ (properties-to-font-name . ,properties-to-font-name)
+ (style-to-font-name . ,style-to-font-name)
+ (markup-to-properties . ,markup-to-properties)
+ (font-size . "0") ;; Hmm, 0 should be the default, maybe??
+ (font-family . "roman")
+ (meta . ,(element-description "ChordNames" chord-name-interface))
+ ))
+
+ (NoteCollision . (
+ (axes 0 1)
+ (note-width . 1.65)
+ (meta . ,(element-description "NoteCollision"
+ general-element-interface note-collision-interface axis-group-interface
+ ))
+ ))
+
+ (Crescendo . (
+ (molecule-callback . ,Crescendo::brew_molecule)
+ (thickness . 1.0)
+ (shorten-for-letter . 4.0)
+ (height . 0.6666)
+ (dash-thickness . 1.2)
+ (dash-length . 4.0)
+ (self-alignment-Y . 0)
+ (Y-offset-callbacks . (,Side_position::aligned_on_self))
+ (meta . ,(element-description "Crescendo" hairpin-interface))
+ ))
+
+ (DotColumn . (
+ (axes 0 )
+ (meta . ,(element-description "DotColumn" dot-column-interface general-element-interface axis-group-interface))
+ ))
+
+ (Dots . (
+ (molecule-callback . ,Dots::brew_molecule)
+ (dot-count . 1)
+ (staff-position . 0.0)
+ (Y-offset-callbacks . (,Dots::quantised_position_callback ,Staff_symbol_referencer::callback))
+ (meta . ,(element-description "Dots" dot-interface general-element-interface))
+ ))
+
+ (DynamicText . (
+ (Y-offset-callbacks . (,Side_position::aligned_on_self))
+ (molecule-callback . ,Text_item::brew_molecule)
+ (script-priority . 100)
+ (font-style . dynamic)
+ (properties-to-font-name . ,properties-to-font-name)
+ (style-to-font-name . ,style-to-font-name)
+ (markup-to-properties . ,markup-to-properties)
+ (self-alignment-Y . 0)
+
+ (meta . ,(element-description "DynamicText" text-interface general-element-interface))
+ ))
+
+ (DynamicLineSpanner . (
+ (axes . ( 1))
+ (padding . 3)
+ (minimum-space . 6)
+ (meta . ,(element-description "DynamicLineSpanner" dynamic-interface axis-group-interface side-position-interface))
+ ))
+
+ (LeftEdge . (
+ (break-align-symbol . Left_edge_item)
+ (breakable . #t)
+ (meta . ,(element-description "LeftEdge" break-aligned-interface))
+ ))
+
+ (Fingering . (
+ (molecule-callback . ,Text_item::brew_molecule)
+ (padding . 3.0)
+ (self-alignment-X . 0)
+ (font-style . dynamic)
+ (properties-to-font-name . ,properties-to-font-name)
+ (style-to-font-name . ,style-to-font-name)
+ (markup-to-properties . ,markup-to-properties)
+
+ (meta . ,(element-description "Fingering" finger-interface text-script-interface text-interface side-position-interface))
+ ))
+
+ (GraceAlignment . (
+ (axes . (0))
+ (horizontal-space . 1.2)
+ (padding . 1.0)
+ (before-line-breaking-callback . ,Grace_align_item::before_line_breaking)
+ (meta . ,(element-description "GraceAlignment" axis-group-interface align-interface grace-alignment-interface))
+ ))
+
+ (HaraKiriVerticalGroup . (
+ (Y-offset-callbacks . (,Hara_kiri_group_spanner::force_hara_kiri_callback))
+ (Y-extent-callback . ,Hara_kiri_group_spanner::y_extent)
+ (axes 1)
+ (meta . ,(element-description "HaraKiriVerticalGroup" axis-group-interface hara-kiri-group-interface))
+ ))
+
+ (LyricHyphen . (
+ (thickness . 1.0)
+ (height . 0.4)
+ (minimum-length . 0.5)
+ (molecule-callback . ,Hyphen_spanner::brew_molecule)
+ (Y-extent-callback . ,Score_element::point_dimension_callback)
+ (meta . ,(element-description "LyricHyphen" lyric-hyphen-interface general-element-interface))
+ ))
+
+ (InstrumentName . (
+ (breakable . #t)
+ (Y-offset-callbacks . (,Side_position::centered_on_parent))
+ (molecule-callback . ,Text_item::brew_molecule)
+ (break-align-symbol . Instrument_name)
+ (visibility-lambda . ,begin-of-line-visible)
+ (properties-to-font-name . ,properties-to-font-name)
+ (style-to-font-name . ,style-to-font-name)
+ (markup-to-properties . ,markup-to-properties)
+ (font-family . roman)
+ (meta . ,(element-description "InstrumentName" general-element-interface text-interface break-aligned-interface))
+ ))
+
+ (KeySignature . (
+ (molecule-callback . ,Key_item::brew_molecule)
+ (break-align-symbol . Key_item)
+ (visibility-lambda . ,begin-of-line-visible)
+ (breakable . #t)
+ (meta . ,(element-description "KeySignature" key-signature-interface general-element-interface break-aligned-interface))
+ ))
+
+ (Accidentals . (
+ (molecule-callback . ,Local_key_item::brew_molecule)
+ (X-offset-callbacks . (,Side_position::aligned_side))
+ (direction . -1)
+ (left-padding . 0.2)
+ (right-padding . 0.4)
+ (meta . ,(element-description "Accidentals" general-element-interface accidentals-interface))
+ ))
+
+ (LineOfScore . (
+ (axes . (0 1))
+ (meta . ,(element-description "LineOfScore" general-element-interface axis-group-interface))
+ ))
+
+ (LyricExtender . (
+ (molecule-callback . ,Lyric_extender::brew_molecule)
+ (height . 0.8) ; stafflinethickness;
+ (right-trim-amount . 0.5)
+ (Y-extent-callback . ,Score_element::point_dimension_callback)
+ (meta . ,(element-description "LyricExtender" general-element-interface lyric-extender-interface))
+ ))
+
+ (LyricText . (
+ (molecule-callback . ,Text_item::brew_molecule)
+ (X-offset-callbacks . (,Side_position::aligned_on_self))
+ (self-alignment-X . 0)
+ (non-rhythmic . #t)
+ (word-space . 0.6)
+
+ (properties-to-font-name . ,properties-to-font-name)
+ (style-to-font-name . ,style-to-font-name)
+ (markup-to-properties . ,markup-to-properties)
+ (font-family . roman)
+
+ (meta . ,(element-description "LyricText" lyric-syllable-interface text-interface))
+ ))
+
+ (RehearsalMark . (
+ (molecule-callback . ,Text_item::brew_molecule)
+ (breakable . #t)
+ (properties-to-font-name . ,properties-to-font-name)
+ (style-to-font-name . ,style-to-font-name)
+ (markup-to-properties . ,markup-to-properties)
+ (font-style . mark)
+ (visibility-lambda . ,end-of-line-invisible)
+ (padding . 4.0)
+ (meta . ,(element-description "RehearsalMark" general-element-interface mark-interface side-position-interface))
+ ))
+
+ (MultiMeasureRest . (
+ (spacing-procedure . ,Multi_measure_rest::set_spacing_rods)
+ (molecule-callback . ,Multi_measure_rest::brew_molecule)
+ (staff-position . 0)
+ (expand-limit . 10)
+ (padding . 2.0) ; staffspace
+ (minimum-width . 12.5) ; staffspace
+ (meta . ,(element-description "MultiMeasureRest" multi-measure-rest-interface general-element-interface))
+ ))
+
+ (NoteColumn . (
+ (axes . (0 1))
+ (meta . ,(element-description "NoteColumn" general-element-interface axis-group-interface note-column-interface))
+ ))
+
+ (NoteHead . (
+ (style . default)
+ (molecule-callback . ,Note_head::brew_molecule)
+ (Y-offset-callbacks . (,Staff_symbol_referencer::callback))
+ (meta . ,(element-description "NoteHead"
+ rhythmic-head-interface
+ note-head-interface general-element-interface))
+ ))
+
+ (OctavateEight . (
+ (self-alignment-X . 0)
+ (text . "8")
+ (visibility-lambda . ,begin-of-line-visible)
+ (X-offset-callbacks . (,Side_position::centered_on_parent ,Side_position::aligned_on_self))
+ (Y-offset-callbacks . (,Side_position::aligned_side))
+ (molecule-callback . ,Text_item::brew_molecule)
+ (font-shape . "italic")
+ (properties-to-font-name . ,properties-to-font-name)
+ (style-to-font-name . ,style-to-font-name)
+ (markup-to-properties . ,markup-to-properties)
+
+ (meta . ,(element-description "OctavateEight" text-interface general-element-interface))
+ ))
+
+ (PaperColumn . (
+ (axes 0)
+ (before-musical-spacing-factor . 0.4)
+ (meta . ,(element-description "PaperColumn" paper-column-interface axis-group-interface spaceable-element-interface))
+ ))
+ (NonMusicalPaperColumn . (
+ (axes 0)
+ (before-musical-spacing-factor . 1.0)
+ (meta . ,(element-description "NonMusicalPaperColumn" paper-column-interface axis-group-interface spaceable-element-interface))
+ ))
+
+ (Rest . (
+ (after-line-breaking-callback . ,Rest::after_line_breaking)
+ (molecule-callback . ,Rest::brew_molecule)
+ (minimum-beam-collision-distance . 1.5)
+ (meta . ,(element-description "Rest"
+ rhythmic-head-interface
+ rest-interface general-element-interface))
+ ))
+ (RestCollision . (
+ (minimum-distance . 0.75)
+ (meta . ,(element-description "RestCollision" rest-collision-interface general-element-interface))
+ ))
+
+ (Script . (
+ (molecule-callback . ,Script::brew_molecule)
+ (X-offset-callbacks . (,Side_position::centered_on_parent))
+ (meta . ,(element-description "Script" script-interface side-position-interface))
+ ))
+
+ (ScriptColumn . (
+ (before-line-breaking-callback . ,Script_column::before_line_breaking)
+ (meta . ,(element-description "ScriptColumn" script-column-interface))
+ ))
+
+ (Slur . ,default-basic-slur-properties)
+ (SpacingSpanner . (
+ (spacing-procedure . ,Spacing_spanner::set_springs)
+
+ ;; assume that notes at least this long are present.
+ (maximum-duration-for-spacing . ,(make-moment 1 8))
+ (meta . ,(element-description "SpacingSpanner" general-element-interface spacing-spanner-interface))
+ ))
+ (SpanBar . (
+
+ (break-align-symbol . Staff_bar)
+ (barsize-procedure . ,Span_bar::get_bar_size)
+ (molecule-callback . ,Bar::brew_molecule)
+ (visibility-lambda . ,begin-of-line-invisible)
+ (X-extent-callback . ,Span_bar::width_callback)
+ (Y-offset-callbacks . (,Span_bar::center_on_spanned_callback))
+
+ (breakable . #t)
+ (glyph . "|")
+ (before-line-breaking-callback . ,Span_bar::before_line_breaking)
+ ;; ugh duplication!
+
+ ;;
+ ;; Ross. page 151 lists other values, we opt for a leaner look
+ ;;
+ (kern . 3.0)
+ (thin-kern . 3.0)
+ (hair-thickness . 1.6)
+ (thick-thickness . 6.0)
+ (meta . ,(element-description "SpanBar" span-bar-interface bar-line-interface general-element-interface))
+ ))
+
+ (StanzaNumber . (
+ (breakable . #t)
+ (molecule-callback . ,Text_item::brew_molecule)
+ (break-align-symbol . Clef_item)
+ (visibility-lambda . ,begin-of-line-visible)
+ (meta . ,(element-description "StanzaNumber" break-aligned-interface text-interface))
+ ))
+
+ (StaffSymbol . (
+ (molecule-callback . ,Staff_symbol::brew_molecule)
+ (staff-space . 1.0)
+ (line-count . 5 )
+ (meta . ,(element-description "StaffSymbol" staff-symbol-interface general-element-interface))
+ ))
+ (SostenutoPedal . (
+ (molecule-callback . ,Text_item::brew_molecule)
+ (X-offset-callbacks . (,Side_position::aligned_on_self))
+ (Y-offset-callbacks .
+ (,Side_position::aligned_side
+ ,Side_position::centered_on_parent))
+ (no-spacing-rods . #t)
+ (font-shape . "italic")
+ (properties-to-font-name . ,properties-to-font-name)
+ (style-to-font-name . ,style-to-font-name)
+ (markup-to-properties . ,markup-to-properties)
+
+ (self-alignment-X . 0)
+ (meta . ,(element-description "SostenutoPedal" text-interface general-element-interface))
+ ))
+
+ (Stem . (
+ (before-line-breaking-callback . ,Stem::before_line_breaking)
+ (molecule-callback . ,Stem::brew_molecule)
+ (thickness . 0.8)
+ (beamed-lengths . (0.0 2.5 2.0 1.5))
+ (beamed-minimum-lengths . (0.0 1.5 1.25 1.0))
+
+;; Stems in unnatural (forced) direction should be shortened,
+;; according to [Roush & Gourlay]. Their suggestion to knock off
+;; a whole staffspace seems a bit drastical: we'll do half.
+
+ (lengths . (3.5 3.5 3.5 4.5 5.0))
+ (stem-shorten . (0.5))
+ ; if stem is on middle line, choose this direction.
+ (default-neutral-direction . 1)
+ (X-offset-callbacks . (,Stem::off_callback))
+ (meta . ,(element-description "Stem" stem-interface general-element-interface))
+ ))
+
+ (StemTremolo . (
+ (molecule-callback . ,Stem_tremolo::brew_molecule)
+ (beam-width . 2.0) ; staff-space
+ (beam-thickness . 0.42) ; staff-space
+ (beam-space-function . ,default-beam-space-function)
+ (meta . ,(element-description "StemTremolo" stem-tremolo-interface general-element-interface))
+ ))
+
+ (SeparationItem . (
+ (meta . ,(element-description "SeparationItem" separation-item-interface general-element-interface))
+ ))
+ (SeparatingGroupSpanner . (
+ (spacing-procedure . ,Separating_group_spanner::set_spacing_rods)
+ (meta . ,(element-description "SeparatingGroupSpanner" separation-spanner-interface))
+ ))
+
+ (SustainPedal . (
+ (no-spacing-rods . #t)
+ (molecule-callback . ,Sustain_pedal::brew_molecule)
+ (self-alignment-X . 0)
+ (X-offset-callbacks . (,Side_position::aligned_on_self))
+ (Y-offset-callbacks .
+ (,Side_position::aligned_side
+ ,Side_position::centered_on_parent))
+
+ (meta . ,(element-description "SustainPedal" sustain-pedal-interface side-position-interface))
+ ))
+
+ (SystemStartDelimiter . (
+ (molecule-callback . ,System_start_delimiter::brew_molecule)
+ (after-line-breaking-callback . ,System_start_delimiter::after_line_breaking)
+ (collapse-height . 1.0)
+ (thickness . 1.6)
+ (arch-height . 1.5)
+ (arch-angle . 50.0)
+ (arch-thick . 0.25)
+ (arch-width . 1.5)
+ (bracket-thick . 0.25)
+ (bracket-width . 2.0)
+ (meta . ,(element-description "SystemStartDelimiter" system-start-delimiter general-element-interface))
+ ))
+
+ (TextScript . (
+ (molecule-callback . ,Text_item::brew_molecule)
+ (no-spacing-rods . #t)
+ (padding . 0.5)
+ (meta . ,(element-description "TextScript" text-script-interface text-interface side-position-interface general-element-interface))
+ ))
+ (TextSpanner . (
+ (molecule-callback . ,Text_spanner::brew_molecule)
+ (font-shape . "italic")
+ (properties-to-font-name . ,properties-to-font-name)
+ (style-to-font-name . ,style-to-font-name)
+ (markup-to-properties . ,markup-to-properties)
+ (type . "line")
+ (direction . 1)
+ (meta . ,(element-description "TextSpanner" text-spanner-interface general-element-interface))
+ ))
+ (Tie . (
+ (molecule-callback . ,Tie::brew_molecule)
+ (spacing-procedure . ,Tie::set_spacing_rods)
+ (staffline-clearance . 0.24)
+ (details . ((ratio . 0.333) (height-limit . 1.0)))
+ (thickness . 1.2)
+ (x-gap . 0.2)
+ (minimum-length . 2.5)
+ (meta . ,(element-description "Tie" tie-interface general-element-interface))
+ ))
+
+ (TieColumn . (
+ (after-line-breaking-callback . ,Tie_column::after_line_breaking)
+ (meta . ,(element-description "TieColumn" tie-column-interface general-element-interface))
+ ))
+
+ (TimeSignature . (
+ (molecule-callback . ,Time_signature::brew_molecule)
+ (break-align-symbol . Time_signature)
+ (visibility-lambda . ,all-visible)
+ (breakable . #t)
+ (properties-to-font-name . ,properties-to-font-name)
+ (style-to-font-name . ,style-to-font-name)
+ (markup-to-properties . ,markup-to-properties)
+ (font-style . timesig)
+
+ (meta . ,(element-description "TimeSignature" time-signature-interface general-element-interface))
+ ))
+
+ (TupletBracket . (
+ (number-gap . 2.0)
+ (delta-y . 0)
+ (thick . 1.0)
+ (after-line-breaking-callback . ,Tuplet_spanner::after_line_breaking)
+ (molecule-callback . ,Tuplet_spanner::brew_molecule)
+ (properties-to-font-name . ,properties-to-font-name)
+ (style-to-font-name . ,style-to-font-name)
+ (markup-to-properties . ,markup-to-properties)
+ (font-shape . "italic")
+ (meta . ,(element-description "TupletBracket"
+ general-element-interface tuplet-bracket-interface))
+ ))
+
+ (UnaChordaPdeal . (
+ (molecule-callback . ,Text_item::brew_molecule)
+ (font-shape . "italic")
+ (properties-to-font-name . ,properties-to-font-name)
+ (style-to-font-name . ,style-to-font-name)
+ (markup-to-properties . ,markup-to-properties)
+ (no-spacing-rods . #t)
+ (self-alignment-X . 0)
+ (X-offset-callbacks . (,Side_position::aligned_on_self))
+ (Y-offset-callbacks .
+ (,Side_position::aligned_side
+ ,Side_position::centered_on_parent))
+ (meta . ,(element-description "UnaChordaPedal" text-interface general-element-interface))
+ ))
+
+ (VoltaBracket . (
+ (molecule-callback . ,Volta_spanner::brew_molecule)
+ (direction . 1)
+ (padding . 5)
+ (properties-to-font-name . ,properties-to-font-name)
+ (style-to-font-name . ,style-to-font-name)
+ (markup-to-properties . ,markup-to-properties)
+ (font-style . volta)
+
+ (thickness . 1.6) ; stafflinethickness
+ (height . 2.0) ; staffspace;
+ (minimum-space . 25)
+ (meta . ,(element-description "VoltaBracket" volta-bracket-interface side-position-interface))
+ ))
+
+ (VerticalAlignment . (
+ (axes 1)
+ (Y-extent-callback . ,Axis_group_interface::group_extent_callback)
+ (X-extent-callback . #f)
+ (stacking-dir . -1)
+ (meta . ,(element-description "VerticalAlignment" align-interface axis-group-interface))
+ ))
+
+ (VerticalAxisGroup . (
+ (axes 1)
+ (meta . ,(element-description "VerticalAxisGroup" axis-group-interface))
+ ))
+))
+
+
+
+; (display (map pair? all-element-descriptions))
+