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javax.swing.text
Class LabelView

java.lang.Object
  |
  +--javax.swing.text.View
        |
        +--javax.swing.text.GlyphView
              |
              +--javax.swing.text.LabelView

All Implemented Interfaces:

Cloneable, SwingConstants, TabableView

Direct Known Subclasses:

InlineView

public class LabelView

extends GlyphView

implements TabableView

A LabelView is a styled chunk of text that represents a view mapped over an element in the text model. It caches the character level attributes used for rendering.

Inner classes inherited from class javax.swing.text.GlyphView

GlyphView.GlyphPainter

Fields inherited from class javax.swing.text.View

BadBreakWeight, ExcellentBreakWeight, ForcedBreakWeight, GoodBreakWeight, X_AXIS, Y_AXIS

Fields inherited from interface javax.swing.SwingConstants

BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NORTH, NORTH_EAST, NORTH_WEST, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST

Constructor Summary

LabelView(Element elem)
Constructs a new view wrapped on an element.

Method Summary

void	changedUpdate(DocumentEvent e, Shape a, ViewFactory f) Gives notification from the document that attributes were changed in a location that this view is responsible for.
Color	getBackground() Fetch the background color to use to render the glyphs.
Font	getFont() Fetch the font that the glyphs should be based upon.
protected FontMetrics	getFontMetrics() Deprecated. FontMetrics are not used for glyph rendering when running in the Java2 SDK.
Color	getForeground() Fetch the foreground color to use to render the glyphs.
boolean	isStrikeThrough() Determine if the glyphs should have a strikethrough line.
boolean	isSubscript() Determine if the glyphs should be rendered as superscript.
boolean	isSuperscript() Determine if the glyphs should be rendered as subscript.
boolean	isUnderline() Determine if the glyphs should be underlined.
protected void	setPropertiesFromAttributes() Set the cached properties from the attributes.
protected void	setStrikeThrough(boolean s) Set whether or not the view has a strike/line through it.
protected void	setSubscript(boolean s) Set whether or not the view represents a subscript.
protected void	setSuperscript(boolean s) Set whether or not the view represents a superscript.
protected void	setUnderline(boolean u) Set whether or not the view is underlined.

Methods inherited from class javax.swing.text.GlyphView

breakView, checkPainter, clone, createFragment, getAlignment, getBreakWeight, getEndOffset, getGlyphPainter, getNextVisualPositionFrom, getPartialSpan, getPreferredSpan, getStartOffset, getTabbedSpan, getTabExpander, getText, insertUpdate, modelToView, paint, removeUpdate, setGlyphPainter, viewToModel

Methods inherited from class javax.swing.text.View

append, forwardUpdate, forwardUpdateToView, getAttributes, getChildAllocation, getContainer, getDocument, getElement, getGraphics, getMaximumSpan, getMinimumSpan, getParent, getResizeWeight, getView, getViewCount, getViewFactory, getViewIndex, insert, isVisible, modelToView, modelToView, preferenceChanged, remove, removeAll, replace, setParent, setSize, updateChildren, updateLayout, viewToModel

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.swing.text.TabableView

getPartialSpan, getTabbedSpan

Constructor Detail

LabelView

public LabelView(Element elem)

Constructs a new view wrapped on an element.

Parameters:

elem - the element

Method Detail

setUnderline

protected void setUnderline(boolean u)

Set whether or not the view is underlined.

setStrikeThrough

protected void setStrikeThrough(boolean s)

Set whether or not the view has a strike/line through it.

setSuperscript

protected void setSuperscript(boolean s)

Set whether or not the view represents a superscript.

setSubscript

protected void setSubscript(boolean s)

Set whether or not the view represents a subscript.

setPropertiesFromAttributes

protected void setPropertiesFromAttributes()

Set the cached properties from the attributes.

getFontMetrics

protected FontMetrics getFontMetrics()

Deprecated. FontMetrics are not used for glyph rendering when running in the Java2 SDK.

Fetch the FontMetrics used for this view.

getBackground

public Color getBackground()

Fetch the background color to use to render the glyphs. If there is no background color, null should be returned. This is implemented to return a cached background color.

Overrides:

getBackground in class GlyphView

getForeground

public Color getForeground()

Fetch the foreground color to use to render the glyphs. If there is no foreground color, null should be returned. This is implemented to return a cached foreground color.

Overrides:

getForeground in class GlyphView

getFont

public Font getFont()

Fetch the font that the glyphs should be based upon. This is implemented to return a cached font.

Overrides:

getFont in class GlyphView

isUnderline

public boolean isUnderline()

Determine if the glyphs should be underlined. If true, an underline should be drawn through the baseline.

Overrides:

isUnderline in class GlyphView

isStrikeThrough

public boolean isStrikeThrough()

Determine if the glyphs should have a strikethrough line. If true, a line should be drawn through the center of the glyphs.

Overrides:

isStrikeThrough in class GlyphView

isSubscript

public boolean isSubscript()

Determine if the glyphs should be rendered as superscript.

Overrides:

isSubscript in class GlyphView

isSuperscript

public boolean isSuperscript()

Determine if the glyphs should be rendered as subscript.

Overrides:

isSuperscript in class GlyphView

changedUpdate

public void changedUpdate(DocumentEvent e,
                          Shape a,
                          ViewFactory f)

Gives notification from the document that attributes were changed in a location that this view is responsible for.

Overrides:

changedUpdate in class GlyphView

Parameters:

e - the change information from the associated document

a - the current allocation of the view

f - the factory to use to rebuild if the view has children

See Also:

View.changedUpdate(javax.swing.event.DocumentEvent, java.awt.Shape, javax.swing.text.ViewFactory)