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lottie: enhance parsing of position's SeparateCoords

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The "s" key does not have to appear at the beginning
of the position block. Previously, such cases would
result in a parsing error — now they are handled correctly.
This commit is contained in:
Mira Grudzinska 2025-05-06 22:15:35 +02:00 • committed by Hermet Park
parent a21ecdc1ae
commit a6898ccf42
2 changed files with 14 additions and 5 deletions
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6
src/loaders/lottie/tvgLottieModel.h
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@ -553,6 +553,12 @@ struct LottieTransform : LottieObject
LottieFloat y = 0.0f;
};
SeparateCoord* separateCoord()
{
if (!coords) coords = new SeparateCoord;
return coords;
}
struct RotationEx
{
LottieFloat x = 0.0f;

13
src/loaders/lottie/tvgLottieParser.cpp
View file

@ -603,11 +603,14 @@ LottieTransform* LottieParser::parseTransform(bool ddd)
enterObject();
while (auto key = nextObjectKey()) {
if (KEY_AS("k")) parsePropertyInternal(transform->position);
else if (KEY_AS("s") && getBool()) transform->coords = new LottieTransform::SeparateCoord;
//check separateCoord to figure out whether "x(expression)" / "x(coord)"
else if (transform->coords && KEY_AS("x")) parseProperty<LottieProperty::Type::Float>(transform->coords->x);
else if (transform->coords && KEY_AS("y")) parseProperty<LottieProperty::Type::Float>(transform->coords->y);
else if (KEY_AS("x")) transform->position.exp = _expression(getStringCopy(), comp, context.layer, context.parent, &transform->position);
else if (KEY_AS("x"))
{
//check separateCoord to figure out whether "x(expression)" / "x(coord)"
if (peekType() == kStringType) transform->position.exp = _expression(getStringCopy(), comp, context.layer, context.parent, &transform->position);
else parseProperty(transform->separateCoord()->x);
}
else if (KEY_AS("y")) parseProperty(transform->separateCoord()->y);
else if (KEY_AS("sid")) registerSlot<LottieProperty::Type::Position>(transform, getString());
else skip(key);
}