multivalent.std.span
Class BackgroundSpan

java.lang.Object
  multivalent.VObject
      multivalent.Behavior
          multivalent.Span
              multivalent.std.span.BackgroundSpan

All Implemented Interfaces:

ContextListener, EventListener, java.util.EventListener

Direct Known Subclasses:

ForegroundSpan

public class BackgroundSpan

extends Span

Background span with editable color.

Version:

$Revision: 1.3 $ $Date: 2002/02/02 13:16:26 $

Field Summary

static java.lang.String	ATTR_COLOR Color of background.
static java.lang.String	ATTR_COLORS List of color names, separated by spaces, such as "Yellow Orange Green Blue".
static java.lang.String	MSG_CHANGE Change the color to arg, which can be String or Color.
static java.lang.String	MSG_EDIT Pop up dialog asking user color choice.

Fields inherited from class multivalent.Span

GI_END, GI_START, MSG_DELETE, MSG_MORPH, MSG_UNATTACHED, pend, pstart

Fields inherited from class multivalent.Behavior

ATTR_BEHAVIOR, name_

Fields inherited from class multivalent.VObject

attr_

Fields inherited from interface multivalent.ContextListener

LITTLE, LOT, PRIORITY_LENS, PRIORITY_MAX, PRIORITY_MIN, PRIORITY_SELECTION, PRIORITY_SPAN, PRIORITY_STRUCT, SOME

Constructor Summary

BackgroundSpan()

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.
java.awt.Color	getColor()
void	restore(ESISNode n, java.util.Map<java.lang.String,java.lang.Object> attr, Layer layer) Given ESIS subtree, pluck class-specific information from attributes, call super.restore() for locations.
ESISNode	save() Stuff instance state into attributes; if save buffer not null, write out corresponding XML.
boolean	semanticEventAfter(SemanticEvent se, java.lang.String msg) Recognize "deleteSpan " and "morphSpan ".
boolean	semanticEventBefore(SemanticEvent se, java.lang.String msg) Morphing and deletion menu items in popup.
void	setColor(java.awt.Color color) Set to Context.COLOR_INVALID to invalidate, null for transparent.
java.lang.String	toString() Subclasses should extend to check any attributes they add.

Methods inherited from class multivalent.Span

buildAfter, checkRep, close, closeAll, contains, contains, destroy, event, getEnd, getPriority, getStart, isSet, markDirty, move, move, move, moveq, moveq, moveq, moveqSwap, open, repaint, repaint, stretch

Methods inherited from class multivalent.Behavior

buildBefore, clipboardAfter, clipboardBefore, createUI, eventAfter, eventBefore, formatAfter, formatBefore, getBrowser, getDocument, getInstance, getInstance, getLayer, getLogger, getName, getPreference, getRoot, isEditable, paintAfter, paintBefore, putPreference, redo, restoreChildren, setName, undo

Methods inherited from class multivalent.VObject

attrEntrySetIterator, attrKeysIterator, clearAttributes, getAttr, getAttr, getAttributes, getGlobal, getValue, hasAttributes, putAttr, removeAttr, setAttributes

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

MSG_CHANGE

public static final java.lang.String MSG_CHANGE

Change the color to arg, which can be String or Color.

"changeColor": arg= color, as String or Color.

See Also:

Constant Field Values

MSG_EDIT

public static final java.lang.String MSG_EDIT

Pop up dialog asking user color choice.

"editColor".

See Also:

Constant Field Values

ATTR_COLORS

public static final java.lang.String ATTR_COLORS

List of color names, separated by spaces, such as "Yellow Orange Green Blue".

See Also:

Constant Field Values

ATTR_COLOR

public static final java.lang.String ATTR_COLOR

Color of background.

See Also:

Constant Field Values

Constructor Detail

BackgroundSpan

public BackgroundSpan()

Method Detail

setColor

public void setColor(java.awt.Color color)

Set to Context.COLOR_INVALID to invalidate, null for transparent.

getColor

public java.awt.Color getColor()

appearance

public boolean appearance(Context cx,
                          boolean all)

Description copied from interface: ContextListener

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.

Specified by:

appearance in interface ContextListener

Overrides:

appearance in class Span

all - all attributes or exclude those that are not inherited

semanticEventBefore

public boolean semanticEventBefore(SemanticEvent se,
                                   java.lang.String msg)

Description copied from class: Span

Morphing and deletion menu items in popup.

Overrides:

semanticEventBefore in class Span

semanticEventAfter

public boolean semanticEventAfter(SemanticEvent se,
                                  java.lang.String msg)

Description copied from class: Span

Recognize "deleteSpan " and "morphSpan ".

Overrides:

semanticEventAfter in class Span

save

public ESISNode save()

Description copied from class: Span

Stuff instance state into attributes; if save buffer not null, write out corresponding XML. Subclass should override if have interesting content (can stuff content into attr then super.save()). If span is not attached to tree at save time, its old attachment points are retained. This way, spans that can't be attached presently can be tried again without degradation.

Overrides:

save in class Span

restore

public void restore(ESISNode n,
                    java.util.Map<java.lang.String,java.lang.Object> attr,
                    Layer layer)

Description copied from class: Span

Given ESIS subtree, pluck class-specific information from attributes, call super.restore() for locations. Attributes named start and end are reserved to hold Robust Location data.

Overrides:

restore in class Span

See Also:

RobustLocation

toString

public java.lang.String toString()

Description copied from class: Span

Subclasses should extend to check any attributes they add.

Overrides:

toString in class Span