Follows #6592. Paste now also skips the names that effects in the
document's brush art use when it picks a free name for a pasted SVG
filter. When no free name keeps the filter within the 64 KB limit (a
one-letter name at the limit with every free letter and digit taken),
the paste is refused instead of keeping the name of the document's
filter. Clipboard::import_into and import_text_styles return a Result,
and their callers pass the error on before the document changes.
When the document has a loop of styles and patterns under one set of names, its styles
were still matched one by one, so a style could be matched to another copy with the same
attributes and the pattern then compared with the wrong style name. Each definition of
such a loop is now the document's under the name found for it.
A brush whose art sets type in a style renamed on the way in was compared before the
rename was known, so loading the file again added the brush and what uses it again.
Loading now places brushes with the styles, symbols and patterns, each after what it uses.
Paste keeps its order.
A style that paints with a pattern whose type is set in that style could be matched to the
document's style of the same name and attributes while the pattern came in under a free
name, so the loaded style painted with the document's other pattern. When the document does
not have such a loop under one set of names, each of its styles, symbols and patterns is now
added.
The names a loop of styles and patterns has in the document were searched by trying every
combination, up to 256, so a loop of nine with a numbered copy each was not matched and a
repeat load added it again. The names are now picked one definition at a time, comparing each
definition as soon as the names of those it uses are picked.
A loaded character style kept a size, scale, leading, shift or stroke width that
charStyle.new refuses. Such a style is now skipped and listed in the reply's skipped names.
Load Character Styles and Load Paragraph Styles left out every style of the other kind,
so a pattern that a loaded style paints with kept a reference to a paragraph or character
style the document did not get. The styles of the kind not loaded now come along when such a
pattern or symbol sets type in them, renamed like any other.
The order in which styles, symbols and patterns are placed is worked out from one graph of
their uses instead of scanning every definition left in each round.
Loading styles placed every definition in a loop of uses, and everything that used one, in one group and tried the product of all their candidate names under one cap of 256. Separate loops multiplied: nine self-referencing patterns, each in the document under its name and as a numbered copy from an earlier load, gave 512 combinations, none were tried, and a repeat load added more numbered copies. One loop with no candidate stopped every other loop from matching.
The loops are now the strongly connected components of the uses among those definitions. Each loop is matched with its own search and cap, and a definition that only uses a loop is placed after it, with the loop's names known.
The Character Styles and Paragraph Styles panel menus get Load Character
Styles... or Load Paragraph Styles..., and Load All Styles..., which add the
styles of a document picked in an open dialog in one undo step
(charStyle.load, paraStyle.load, textStyle.loadAll). The swatches,
patterns and symbols the styles use come along as Paste brings them, in
use order, so a style or pattern renamed on the way in keeps its links.
A style the document already has, under its name or a numbered copy of
it, is not added again; another style whose name is taken is added under
a free name. The file's Normal styles, and styles with a blank name or
attributes that do not read, are not loaded.
Character Style Options and New Character Style get a Character Color
section and an OpenType Features section.
Character Color sets the fill and stroke (None or a document swatch;
a global swatch or a tint of one stays linked, with a Tint from 0% to
100%), the stroke Weight, and Overprint Fill and Overprint Stroke. A
gradient or pattern paint the style already has stays until another
paint is chosen.
OpenType Features sets Figure, Position, Standard and Discretionary
Ligatures, Contextual, Stylistic and Titling Alternates, Swash,
Ordinals, Fractions and Stylistic Sets 1 to 20. A changed control
replaces only its own tags in the style's feature list, so other tags
stay, and Default Figure and Default Position are stored as their
features turned off, distinct from unset.
Empty controls stay unset, and each section's Reset Panel clears only
its own attributes.
charStyle.new, charStyle.edit and charStyle.setAttrs check a changed
fill, stroke, stroke weight or feature list: tints from 0 to 1, links
to global swatches of the document (the color follows the swatch),
weights from 0 to 4000000, and known feature tags, at most 256. Values
the style or the text it is made from already has are kept.
charStyle.duplicate keeps the copied style's values in the same way, so
a style with a language tag that is not in the list can be duplicated.
Editing a global swatch now also updates the fill and stroke stored in
character styles, so their text no longer shows as overriding the style
and text styled later takes the new color. swatch.unused counts a swatch
a character style links to as used.
charStyle.new now validates attrs against the target text's attributes, so a
language tag that is not in the list but that the selected run already holds
(a native file can store any tag) is kept. Any other unlisted tag is still an
error.
Character Style Options and New Character Style get an Advanced
Character Formats section with Horizontal Scale, Vertical Scale,
Baseline Shift, Character Rotation and Language. Empty fields stay
unset, an explicit 100%, 0 degrees or English: USA stays distinct from
unset, and Reset Panel on the section clears only these five. Scales
take 1% to 10000% and baseline shift -1296 pt to 1296 pt, as
text.setRangeStyle does; rotation is stored from -180 to 180 degrees.
Language sets the language the characters are shaped in; hyphenation
and spelling do not change.
A field still as it opened keeps its stored value without the range
check, so a style captured from a scaled type object can be renamed.
The same applies to Basic's Size and Leading minimum.
charStyle.edit keeps a language tag that is not in the list when the
style already has it, so a style read from a file with such a tag can
be edited.
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