ValidFiniteRect

Page layout, pagination, Form XObjects

Description

Private helper of TPDFlibDynamicComponentSession that validates that a rectangle uses finite numbers and strictly positive dimensions

Function TPDFlibDynamicComponentSession.ValidFiniteRect(Left, Top,
  Width, Height: Double): Boolean;

`Left`, `Top`	Rectangle origin, which may be any finite value including negative offsets
`Width`, `Height`	Rectangle extents, which must be finite and strictly positive

ComposeNextLayout validates the destination slot and the natural content canvas with this check before any component work starts

The origin coordinates are checked only for finiteness, while the extents must also be greater than zero

`True`	All four values are neither `NaN` nor infinite and both extents are greater than zero
`False`	Any value is `NaN` or infinite, or either extent is zero or negative