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Let several text stages share one named look

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A picture with a title, a caption and a credit meant typing the same
font, size and colour into every text stage, and changing the look meant
typing them all again. A project now holds named styles: a stage follows
one, and editing it moves every stage that follows it at once.

The front-ends learn nothing effect-specific. A ParamSpec can be marked
.styled(), saying a style carries it rather than the stage, and
Effect::styleKind() names the pool it comes from -- so styleSpecs(kind)
is to a style what params() is to a stage, and a second text-ish effect
would slot into the styles that already exist. The look is what a style
carries; the words and the placement stay on the stage, which is what
lets two stages share a typography in two different corners.

stageValues() resolves one in a single place, and a stage keeps a full
set of values of its own beside the style, so switching it to Custom,
dropping the style, or opening the project in a build that does not know
it renders exactly the same picture. A style moves stages together; it
never holds the only copy of anything.

The command line builds no styles and passes none, so it renders what it
always did.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Si
2026-09-19 21:55:55 +02:00
co-authored by Claude Opus 5
parent eb417bb41a
commit 3aade6f361
17 changed files with 890 additions and 131 deletions
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src/core/effect.cpp
+1 -19
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@@ -4,25 +4,7 @@ namespace effector {
ParamValues Effect::defaults() const {
ParamValues values;
for (const auto& spec : params()) {
switch (spec.type) {
case ParamSpec::Type::Int:
values[spec.key] = static_cast<long>(spec.defaultValue);
break;
case ParamSpec::Type::Double:
values[spec.key] = spec.defaultValue;
break;
case ParamSpec::Type::Bool:
values[spec.key] = spec.defaultValue != 0.0;
break;
case ParamSpec::Type::Choice:
case ParamSpec::Type::Path:
case ParamSpec::Type::Text:
case ParamSpec::Type::Color:
values[spec.key] = spec.defaultChoice;
break;
}
}
for (const auto& spec : params()) values[spec.key] = paramDefault(spec);
return values;
}