- java.lang.Object
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- javax.swing.text.View
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- javax.swing.text.CompositeView
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- javax.swing.text.BoxView
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- javax.swing.text.FlowView
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- javax.swing.text.ParagraphView
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- javax.swing.text.html.ParagraphView
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- All Implemented Interfaces:
SwingConstants,TabExpander
public class ParagraphView extends ParagraphView
Displays the a paragraph, and uses css attributes for its configuration.
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Nested Class Summary
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Nested classes/interfaces declared in class javax.swing.text.FlowView
FlowView.FlowStrategy
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Field Summary
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Fields declared in class javax.swing.text.ParagraphView
firstLineIndent
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Fields declared in class javax.swing.text.FlowView
layoutPool, layoutSpan, strategy
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Fields declared in class javax.swing.text.View
BadBreakWeight, ExcellentBreakWeight, ForcedBreakWeight, GoodBreakWeight, X_AXIS, Y_AXIS
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Fields 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
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Constructor Summary
Constructors Constructor Description ParagraphView(Element elem)Constructs a ParagraphView for the given element.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected SizeRequirementscalculateMinorAxisRequirements(int axis, SizeRequirements r)Calculate the needs for the paragraph along the minor axis.AttributeSetgetAttributes()Fetches the attributes to use when rendering.floatgetMaximumSpan(int axis)Determines the maximum span for this view along an axis.floatgetMinimumSpan(int axis)Determines the minimum span for this view along an axis.floatgetPreferredSpan(int axis)Determines the preferred span for this view.protected StyleSheetgetStyleSheet()Convenient method to get the StyleSheet.booleanisVisible()Indicates whether or not this view should be displayed.voidpaint(Graphics g, Shape a)Renders using the given rendering surface and area on that surface.voidsetParent(View parent)Establishes the parent view for this view.protected voidsetPropertiesFromAttributes()Sets up the paragraph from css attributes instead of the values found in StyleConstants (i.e. which are used by the superclass).-
Methods declared in class javax.swing.text.ParagraphView
breakView, changedUpdate, createRow, findOffsetToCharactersInString, flipEastAndWestAtEnds, getAlignment, getBreakWeight, getClosestPositionTo, getFlowSpan, getFlowStart, getLayoutView, getLayoutViewCount, getNextNorthSouthVisualPositionFrom, getPartialSize, getTabBase, getTabSet, nextTabStop, setFirstLineIndent, setJustification, setLineSpacing
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Methods declared in class javax.swing.text.FlowView
getFlowAxis, getViewIndexAtPosition, insertUpdate, layout, loadChildren, removeUpdate
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Methods declared in class javax.swing.text.BoxView
baselineLayout, baselineRequirements, calculateMajorAxisRequirements, childAllocation, forwardUpdate, getAxis, getChildAllocation, getHeight, getOffset, getResizeWeight, getSpan, getViewAtPoint, getWidth, isAfter, isAllocationValid, isBefore, isLayoutValid, layoutChanged, layoutMajorAxis, layoutMinorAxis, modelToView, paintChild, preferenceChanged, replace, setAxis, setSize, viewToModel
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Methods declared in class javax.swing.text.CompositeView
getBottomInset, getInsideAllocation, getLeftInset, getNextEastWestVisualPositionFrom, getNextVisualPositionFrom, getRightInset, getTopInset, getView, getViewAtPosition, getViewCount, getViewIndex, modelToView, setInsets, setParagraphInsets
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Methods declared in class javax.swing.text.View
append, breakView, createFragment, forwardUpdateToView, getBreakWeight, getContainer, getDocument, getElement, getEndOffset, getGraphics, getParent, getStartOffset, getToolTipText, getViewFactory, getViewIndex, insert, modelToView, remove, removeAll, updateChildren, updateLayout, viewToModel
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Constructor Detail
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ParagraphView
public ParagraphView(Element elem)
Constructs a ParagraphView for the given element.- Parameters:
elem- the element that this view is responsible for
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Method Detail
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setParent
public void setParent(View parent)
Establishes the parent view for this view. This is guaranteed to be called before any other methods if the parent view is functioning properly.This is implemented to forward to the superclass as well as call the
setPropertiesFromAttributesmethod to set the paragraph properties from the css attributes. The call is made at this time to ensure the ability to resolve upward through the parents view attributes.- Overrides:
setParentin classCompositeView- Parameters:
parent- the new parent, or null if the view is being removed from a parent it was previously added to
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getAttributes
public AttributeSet getAttributes()
Fetches the attributes to use when rendering. This is implemented to multiplex the attributes specified in the model with a StyleSheet.- Overrides:
getAttributesin classView- Returns:
- the attributes to use when rendering
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setPropertiesFromAttributes
protected void setPropertiesFromAttributes()
Sets up the paragraph from css attributes instead of the values found in StyleConstants (i.e. which are used by the superclass). Since- Overrides:
setPropertiesFromAttributesin classParagraphView
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getStyleSheet
protected StyleSheet getStyleSheet()
Convenient method to get the StyleSheet.- Returns:
- the StyleSheet
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calculateMinorAxisRequirements
protected SizeRequirements calculateMinorAxisRequirements(int axis, SizeRequirements r)
Calculate the needs for the paragraph along the minor axis.If size requirements are explicitly specified for the paragraph, use that requirements. Otherwise, use the requirements of the superclass
ParagraphView.If the
axisparameter is neitherView.X_AXISnorView.Y_AXIS,IllegalArgumentExceptionis thrown. If therparameter isnull,a newSizeRequirementsobject is created, otherwise the suppliedSizeRequirementsobject is returned.- Overrides:
calculateMinorAxisRequirementsin classParagraphView- Parameters:
axis- the minor axisr- the inputSizeRequirementsobject- Returns:
- the new or adjusted
SizeRequirementsobject - Throws:
IllegalArgumentException- if theaxisparameter is invalid- See Also:
SizeRequirements
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isVisible
public boolean isVisible()
Indicates whether or not this view should be displayed. If none of the children wish to be displayed and the only visible child is the break that ends the paragraph, the paragraph will not be considered visible. Otherwise, it will be considered visible and return true.
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paint
public void paint(Graphics g, Shape a)
Renders using the given rendering surface and area on that surface. This is implemented to delegate to the superclass after stashing the base coordinate for tab calculations.- Overrides:
paintin classParagraphView- Parameters:
g- the rendering surface to usea- the allocated region to render into- See Also:
View.paint(java.awt.Graphics, java.awt.Shape)
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getPreferredSpan
public float getPreferredSpan(int axis)
Determines the preferred span for this view. Returns 0 if the view is not visible, otherwise it calls the superclass method to get the preferred span. axis.- Overrides:
getPreferredSpanin classBoxView- Parameters:
axis- may be either View.X_AXIS or View.Y_AXIS- Returns:
- the span the view would like to be rendered into; typically the view is told to render into the span that is returned, although there is no guarantee; the parent may choose to resize or break the view
- See Also:
BoxView.getPreferredSpan(int)
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getMinimumSpan
public float getMinimumSpan(int axis)
Determines the minimum span for this view along an axis. Returns 0 if the view is not visible, otherwise it calls the superclass method to get the minimum span.- Overrides:
getMinimumSpanin classBoxView- Parameters:
axis- may be eitherView.X_AXISorView.Y_AXIS- Returns:
- the minimum span the view can be rendered into
- See Also:
BoxView.getMinimumSpan(int)
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getMaximumSpan
public float getMaximumSpan(int axis)
Determines the maximum span for this view along an axis. Returns 0 if the view is not visible, otherwise it calls the superclass method ot get the maximum span.- Overrides:
getMaximumSpanin classBoxView- Parameters:
axis- may be eitherView.X_AXISorView.Y_AXIS- Returns:
- the maximum span the view can be rendered into
- See Also:
BoxView.getMaximumSpan(int)
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