Enum GroupKind 

pub enum GroupKind {
    Transparency {
        params: GroupParams,
    },
    SoftMask {
        params: SoftMaskParams,
    },
    Masked {
        mask: DisplayList,
        params: SoftMaskParams,
    },
    OptionalContent {
        ocg_id: u32,
        default_visible: bool,
    },
}

What a GroupFrame is capturing, determining what gets emitted when it closes.

Variants

Transparency

Opened by begintransparencygroup. On close, the captured display_list becomes the children of a DisplayElement::Group with these params.

Fields

params: GroupParams

SoftMask

Opened by beginsoftmask. While active, paint ops emit into the frame’s display_list to build the mask form. endsoftmask transmutes the frame to Self::Masked without popping.

Fields

params: SoftMaskParams

Masked

Implicitly opened by endsoftmask. While active, paint ops emit into display_list as the content the mask attenuates. On clearsoftmask the frame pops and emits a DisplayElement::SoftMasked carrying mask, the captured content, and params.

Fields

mask: DisplayList

params: SoftMaskParams

OptionalContent

Opened by beginoptionalcontent. On close, the captured display_list becomes the children of a DisplayElement::OcgGroup whose visibility is OcgVisibility::Single { ocg_id, default_visible }.

Fields

ocg_id: u32

default_visible: bool