A list of captions with a layout object attached to it

Error raised when the provided caption file has syntax errors and could not be parsed.

Ties together a number with a unit, to represent a size. Use as value objects! (don't change after creation)

A single caption, including the time and styling information for its display.

A set of captions in potentially multiple languages, all representing the same underlying content. The .layout_info attribute, keeps inf

Error raised when the input is invalid (i.e. a unicode string)

Should encapsulate all the information needed to determine (as correctly as possible) the layout (positioning) of elements on the screen. In

Error raised when the provided caption file was not containing any actual captions.

Represent a point in 2d space.

Used for specifying the extent of a rectangle (how much it stretches), or the padding in a rectangle (how much space should be left empty until

A single node within a caption, representing either text, a style, or a linebreak. Rules: 1. All nodes should have the property

Generic error raised when the reading of the caption file failed.

Error raised when a Caption is initialized with invalid timings.

Represents padding information. Consists of 4 Size objects, representing padding from (in this order): before (up), after (down), start (left) and

The Caption class has been refactored and now its instances must be used as immutable objects. Some of the code in this module, however, reli

Error raised when absolute positioning cannot be converted to percentage

Converts SCC time to microseconds, keeping track of frames passed

Creates and maintains a collection of Captions

A _PositioningTracker that provides if needed a default value (14, 0), or uses the last positioning value set anywhere in the document

Will return instances of the given node_creator. This is used as a means of creating new InstructionNodeCreator instances, because these need

Dictionary-like object, that treats one key as 'active', and notifies observers if the active key changed

List of captions. When appending new elements, it will correct the end time of the last ones, so they end when the new caption gets added. "l

Value object, that can contain text information, or interpretable commands (such as explicit line breaks or turning italics on/off). These no

Quick implementation of a set that tracks the order. If this is a performance bottleneck, replace it with some other implementation.

Enumeration object specifying the horizontal alignment preferences

Creates _InstructionNode instances from characters and commands, storing them internally

This makes the xml instance capable of providing layout information for every one of its nodes (it adds a 'layout_info' attribute on each node)

Encapsulates the methods for determining the layout information about an element (with the element's region playing an important role).

Ported the legacy DFXPWriter from 0.4.5

Represents the spatial coordinates of a rectangle Don't instantiate by hand. use Region.from_points or Region.from_extent

Creates the DFXP regions, and knows how retrieve them, for assigning region IDs to every element # todo - needs to remember the IDs created,

Converts a given unicode string to a CaptionSet. This can be then later used for converting into any other supported formats

A dfxp writer, that ignores all positioning, using a single provided value

Adds a couple useful methods to its subclasses, nothing fancy.

Enumeration-like object, specifying the units of measure for length Usage: unit = UnitEnum.PIXEL unit = UnitEnum.EM if un

Enumeration object, specifying the allowed vertical alignment options Usage: alignment = VerticalAlignmentEnum.TOP if alignment =

Helps determine the positioning of a node, having kept track of positioning-related commands.