multivalent
Interface ContextListener

All Known Implementing Classes:

ActionSpan, AnchorSpan, AwkSpan, BackgroundSpan, BitMagnify, BIUSpan, BlinkSpan, Blur, BoldSpan, Bounds, BoxSpan, Brighten, CapSpan, CharNum, CLGeneral, CSSGeneral, Cypher, Darken, DeleteSpan, EdgeDetect, ElideSpan, FamilySpan, FontSpan, ForegroundSpan, HyperlinkSpan, InsertSpan, InvisibleSpan, ItalicSpan, LabelSpan, Lens, LensOp, Magnify, Mirror, MonospacedSpan, MoveTextSpan, Notemark, OutlineSpan, OverstrikeSpan, PlainSpan, PlainView, PointSpan, RelPointSpan, ReplaceWithSpan, Rescale, Rotate, Ruler, ScriptSpan, SelectionSpan, Sharpen, SidebarSpan, SignalLens, SignalSpan, Span, SpanPDF, StrokeSpan, SubSupSpan, UnderlineSpan

public interface ContextListener

Implemented by everything that can affect appearance through the graphics context, especially structural behaviors, lenses, spans. Defines base constants used to set self-reported priority in getPriority().

Version:

$Revision: 1.3 $ $Date: 2003/06/02 05:02:06 $

See Also:

for stylesheet-specific priorities.

Field Summary

static int	LITTLE Delta constant used to set self-reported priority.
static int	LOT Delta constant used to set self-reported priority.
static int	PRIORITY_LENS
static int	PRIORITY_MAX
static int	PRIORITY_MIN
static int	PRIORITY_SELECTION
static int	PRIORITY_SPAN
static int	PRIORITY_STRUCT
static int	SOME Delta constant used to set self-reported priority.

Method Summary

boolean	appearance(Context cx, boolean all) Resets the graphics context every time the object is added to or dropped from the set active over the portion of the document being drawn.
int	getPriority() Self-reported priority relative to others of the same class, e.g., other spans.

Field Detail

LITTLE

static final int LITTLE

Delta constant used to set self-reported priority.

See Also:

Constant Field Values

SOME

static final int SOME

Delta constant used to set self-reported priority.

See Also:

Constant Field Values

LOT

static final int LOT

Delta constant used to set self-reported priority.

See Also:

Constant Field Values

PRIORITY_MIN

static final int PRIORITY_MIN

See Also:

Constant Field Values

PRIORITY_STRUCT

static final int PRIORITY_STRUCT

See Also:

Constant Field Values

PRIORITY_SPAN

static final int PRIORITY_SPAN

See Also:

Constant Field Values

PRIORITY_LENS

static final int PRIORITY_LENS

See Also:

Constant Field Values

PRIORITY_MAX

static final int PRIORITY_MAX

See Also:

Constant Field Values

PRIORITY_SELECTION

static final int PRIORITY_SELECTION

See Also:

Constant Field Values

Method Detail

appearance

boolean appearance(Context cx,
                   boolean all)

Resets the graphics context every time the object is added to or dropped from the set active over the portion of the document being drawn. These behaviors can come from the style sheet, be ad hoc spans, be lenses, or come from elsewhere. Should be fast.

Parameters:

all - all attributes or exclude those that are not inherited

getPriority

int getPriority()

Self-reported priority relative to others of the same class, e.g., other spans. Use the constants defined here, such as PRIORITY_LENS, modified by LITTLE/SOME/{#link LOT}.