PdfInterpreter class

Executes page content streams against a PdfDevice.

Coverage: paths, transforms, device color spaces, clipping, text positioning/showing (with metric-accurate advances), form XObjects, image XObjects and inline images (decoding delegated to the device), shadings, patterns, soft masks, Type3 fonts, and annotation appearance streams.

Constructors

PdfInterpreter({required CosDocument cos, required PdfDevice device, bool scanImagesOnly = false})

Properties

cos → CosDocument

final

device → PdfDevice

final

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

drawAnnotation(PdfPage page, PdfAnnotation annotation) → void

Draws a single annotation's appearance stream — the one-annotation slice of drawAnnotations, for callers that need an annotation rendered in isolation (e.g. a live drag preview).

drawAnnotations(PdfPage page, {bool skip(PdfAnnotation)?}) → void

Draws the page's annotation appearance streams, normally called after drawPage so they paint over the content (§12.5.5).

drawPage(PdfPage page) → void

drawPageOperations(PdfPage page, List<ContentOperation> operations) → void

Runs an already-parsed page content stream. Parsing (and the underlying stream decompression) dominates rendering on graphics-rich pages, so a renderer that interprets a page more than once — e.g. the image-collect pass and the paint pass in PdfPageRenderer.renderPicture — parses the content once and feeds the same operations to both passes.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

run(List<ContentOperation> operations, CosDictionary resources) → void

Runs a parsed content stream against resources (used by tests).

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Properties

debugFontCacheLength → int

Number of fonts currently held in the shared cache (test hook).

no setter

Static Methods

clearFontCache() → void

Empties the shared font cache. Tests that assert on load behaviour or measure cold timings call this first; ordinary rendering never needs to.