Class LabelView
- All Implemented Interfaces:
Cloneable,SwingConstants,TabableView
- Direct Known Subclasses:
InlineView
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.-
Nested Class Summary
Nested classes/interfaces declared in class javax.swing.text.GlyphView
GlyphView.GlyphPainter -
Field Summary
Fields declared in class javax.swing.text.View
BadBreakWeight, ExcellentBreakWeight, ForcedBreakWeight, GoodBreakWeight, X_AXIS, Y_AXISFields declared in interface javax.swing.SwingConstants
BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoidchangedUpdate(DocumentEvent e, Shape a, ViewFactory f) Gives notification from the document that attributes were changed in a location that this view is responsible for.Fetches the background color to use to render the glyphs.getFont()Fetches the font that the glyphs should be based upon.protected FontMetricsDeprecated.FontMetrics are not used for glyph rendering when running in the JDK.Fetches the foreground color to use to render the glyphs.booleanDetermines if the glyphs should have a strikethrough line.booleanDetermines if the glyphs should be rendered as superscript.booleanDetermines if the glyphs should be rendered as subscript.booleanDetermines if the glyphs should be underlined.protected voidsetBackground(Color bg) Sets the background color for the view.protected voidSets the cached properties from the attributes.protected voidsetStrikeThrough(boolean s) Sets whether or not the view has a strike/line through it.protected voidsetSubscript(boolean s) Sets whether or not the view represents a subscript.protected voidsetSuperscript(boolean s) Sets whether or not the view represents a superscript.protected voidsetUnderline(boolean u) Sets whether or not the view is underlined.Methods declared in class javax.swing.text.GlyphView
breakView, checkPainter, clone, createFragment, getAlignment, getBreakWeight, getEndOffset, getGlyphPainter, getMinimumSpan, getNextVisualPositionFrom, getPartialSpan, getPreferredSpan, getStartOffset, getTabbedSpan, getTabExpander, getText, insertUpdate, modelToView, paint, removeUpdate, setGlyphPainter, viewToModelMethods declared in class javax.swing.text.View
append, forwardUpdate, forwardUpdateToView, getAttributes, getChildAllocation, getContainer, getDocument, getElement, getGraphics, getMaximumSpan, getParent, getResizeWeight, getToolTipText, getView, getViewCount, getViewFactory, getViewIndex, getViewIndex, insert, isVisible, modelToView, modelToView, preferenceChanged, remove, removeAll, replace, setParent, setSize, updateChildren, updateLayout, viewToModelMethods declared in class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods declared in interface javax.swing.text.TabableView
getPartialSpan, getTabbedSpan
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Constructor Details
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LabelView
Constructs a new view wrapped on an element.- Parameters:
elem- the element
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Method Details
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setUnderline
protected void setUnderline(boolean u) Sets whether or not the view is underlined. Note that this setter is protected and is really only meant if you need to update some additional state when set.- Parameters:
u- true if the view is underlined, otherwise false- See Also:
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setStrikeThrough
protected void setStrikeThrough(boolean s) Sets whether or not the view has a strike/line through it. Note that this setter is protected and is really only meant if you need to update some additional state when set.- Parameters:
s- true if the view has a strike/line through it, otherwise false- See Also:
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setSuperscript
protected void setSuperscript(boolean s) Sets whether or not the view represents a superscript. Note that this setter is protected and is really only meant if you need to update some additional state when set.- Parameters:
s- true if the view represents a superscript, otherwise false- See Also:
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setSubscript
protected void setSubscript(boolean s) Sets whether or not the view represents a subscript. Note that this setter is protected and is really only meant if you need to update some additional state when set.- Parameters:
s- true if the view represents a subscript, otherwise false- See Also:
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setBackground
Sets the background color for the view. This method is typically invoked as part of configuring thisView. If you need to customize the background color you should overridesetPropertiesFromAttributesand invoke this method. A value of null indicates no background should be rendered, so that the background of the parentViewwill show through.- Parameters:
bg- background color, or null- Since:
- 1.5
- See Also:
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setPropertiesFromAttributes
protected void setPropertiesFromAttributes()Sets the cached properties from the attributes. -
getFontMetrics
Deprecated.FontMetrics are not used for glyph rendering when running in the JDK.Fetches theFontMetricsused for this view.- Returns:
- the
FontMetricsused for this view
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getBackground
Fetches the background color to use to render the glyphs. This is implemented to return a cached background color, which defaults tonull.- Overrides:
getBackgroundin classGlyphView- Returns:
- the cached background color
- Since:
- 1.3
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getForeground
Fetches the foreground color to use to render the glyphs. This is implemented to return a cached foreground color, which defaults tonull.- Overrides:
getForegroundin classGlyphView- Returns:
- the cached foreground color
- Since:
- 1.3
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getFont
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isUnderline
public boolean isUnderline()Determines if the glyphs should be underlined. If true, an underline should be drawn through the baseline. This is implemented to return the cached underline property.When you request this property,
LabelViewre-syncs its state with the properties of theElement'sAttributeSet. IfElement'sAttributeSetdoes not have this property set, it will revert to false.- Overrides:
isUnderlinein classGlyphView- Returns:
- the value of the cached
underlineproperty - Since:
- 1.3
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isStrikeThrough
public boolean isStrikeThrough()Determines if the glyphs should have a strikethrough line. If true, a line should be drawn through the center of the glyphs. This is implemented to return the cachedstrikeThroughproperty.When you request this property,
LabelViewre-syncs its state with the properties of theElement'sAttributeSet. IfElement'sAttributeSetdoes not have this property set, it will revert to false.- Overrides:
isStrikeThroughin classGlyphView- Returns:
- the value of the cached
strikeThroughproperty - Since:
- 1.3
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isSubscript
public boolean isSubscript()Determines if the glyphs should be rendered as superscript.When you request this property,
LabelViewre-syncs its state with the properties of theElement'sAttributeSet. IfElement'sAttributeSetdoes not have this property set, it will revert to false.- Overrides:
isSubscriptin classGlyphView- Returns:
- the value of the cached
subscriptproperty - Since:
- 1.3
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isSuperscript
public boolean isSuperscript()Determines if the glyphs should be rendered as subscript.When you request this property,
LabelViewre-syncs its state with the properties of theElement'sAttributeSet. IfElement'sAttributeSetdoes not have this property set, it will revert to false.- Overrides:
isSuperscriptin classGlyphView- Returns:
- the value of the cached
superscriptproperty - Since:
- 1.3
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changedUpdate
Gives notification from the document that attributes were changed in a location that this view is responsible for.- Overrides:
changedUpdatein classGlyphView- Parameters:
e- the change information from the associated documenta- the current allocation of the viewf- the factory to use to rebuild if the view has children- See Also:
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