clamp_offset_to_content()

MAYAFLUX_API glm::vec2 MayaFlux::Kinesis::clamp_offset_to_content ( glm::vec2  offset, glm::vec2  viewport_extent, AABB2D  content_bounds  )

noexcept

Clamp a content-space offset so a viewport of the given extent never scrolls past the edges of a content region, per axis.

An axis where content is smaller than the viewport clamps to zero rather than to a degenerate range: there is nothing to scroll on that axis.

Definition at line 13 of file ScrollState.cpp.

{
    const float max_x = std::max(0.F, content_bounds.width() - viewport_extent.x);
    const float max_y = std::max(0.F, content_bounds.height() - viewport_extent.y);
 
    return { std::clamp(offset.x, 0.F, max_x), std::clamp(offset.y, 0.F, max_y) };
}

References offset.

Referenced by apply_scroll().

Here is the caller graph for this function: