Class WrappedSyntaxView.WrappedLine

java.lang.Object

javax.swing.text.View

org.fife.ui.rsyntaxtextarea.WrappedSyntaxView.WrappedLine

All Implemented Interfaces:

SwingConstants

Enclosing class:

WrappedSyntaxView

class WrappedSyntaxView.WrappedLine
extends View

Simple view of a line that wraps if it doesn't fit within the horizontal space allocated. This class tries to be lightweight by carrying little state of its own and sharing the state of the outer class with its siblings.

Version:

0.2

Field Summary

Fields

Modifier and Type	Field	Description
private int	nlines
private boolean	widthChangePending

Fields inherited from class View

BadBreakWeight, ExcellentBreakWeight, ForcedBreakWeight, GoodBreakWeight, X_AXIS, Y_AXIS

Fields inherited from interface 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

Constructor	Description
WrappedLine(Element elem)

Method Summary

Modifier and Type	Method	Description
(package private) final int	calculateLineCount()	Calculate the number of lines that will be rendered by logical line when it is wrapped.
float	getPreferredSpan(int axis)	Determines the preferred span for this view along an axis.
private void	handleDocumentEvent(DocumentEvent e, Shape a, ViewFactory f)
void	insertUpdate(DocumentEvent e, Shape a, ViewFactory f)
Shape	modelToView(int pos, Shape a, Position.Bias b)	Provides a mapping from the document model coordinate space to the coordinate space of the view mapped to it.
void	paint(Graphics g, Shape a)	Renders using the given rendering surface and area on that surface.
void	removeUpdate(DocumentEvent e, Shape a, ViewFactory f)
int	viewToModel(float fx, float fy, Shape a, Position.Bias[] bias)	Provides a mapping from the view coordinate space to the logical coordinate space of the model.

Methods inherited from class View

append, breakView, changedUpdate, createFragment, forwardUpdate, forwardUpdateToView, getAlignment, getAttributes, getBreakWeight, getChildAllocation, getContainer, getDocument, getElement, getEndOffset, getGraphics, getMaximumSpan, getMinimumSpan, getNextVisualPositionFrom, getParent, getResizeWeight, getStartOffset, getToolTipText, getView, getViewCount, getViewFactory, getViewIndex, getViewIndex, insert, isVisible, modelToView, modelToView, preferenceChanged, remove, removeAll, replace, setParent, setSize, updateChildren, updateLayout, viewToModel

Methods inherited from class Object

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

Field Details

nlines

private int nlines

widthChangePending

private boolean widthChangePending

Constructor Details

WrappedLine

WrappedLine(Element elem)

Method Details

calculateLineCount

final int calculateLineCount()

Calculate the number of lines that will be rendered by logical line when it is wrapped.

getPreferredSpan

public float getPreferredSpan(int axis)

Determines the preferred span for this view along an axis.

Specified by:

getPreferredSpan in class View

Parameters:

axis - may be either X_AXIS or 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:

• View.getPreferredSpan(int)

paint

public void paint(Graphics g,
 Shape a)

Renders using the given rendering surface and area on that surface. The view may need to do layout and create child views to enable itself to render into the given allocation.

Specified by:

paint in class View

Parameters:

g - the rendering surface to use

a - the allocated region to render into

See Also:

• View.paint(Graphics, Shape)

modelToView

public Shape modelToView(int pos,
 Shape a,
 Position.Bias b)
                  throws BadLocationException

Provides a mapping from the document model coordinate space to the coordinate space of the view mapped to it.

Specified by:

modelToView in class View

Parameters:

pos - the position to convert

a - the allocated region to render into

Returns:

the bounding box of the given position is returned

Throws:

BadLocationException - if the given position does not represent a valid location in the associated document.

viewToModel

public int viewToModel(float fx,
 float fy,
 Shape a,
 Position.Bias[] bias)

Provides a mapping from the view coordinate space to the logical coordinate space of the model.

Specified by:

viewToModel in class View

Parameters:

fx - the X coordinate

fy - the Y coordinate

a - the allocated region to render into

Returns:

the location within the model that best represents the given point in the view

See Also:

• View.viewToModel(float, float, Shape, Position.Bias[])

handleDocumentEvent

private void handleDocumentEvent(DocumentEvent e,
 Shape a,
 ViewFactory f)

insertUpdate

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

Overrides:

insertUpdate in class View

removeUpdate

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

Overrides:

removeUpdate in class View