org.gjt.sp.jedit.syntax

Class SyntaxView

java.lang.Object

javax.swing.text.View

javax.swing.text.PlainView

org.gjt.sp.jedit.syntax.SyntaxView

All Implemented Interfaces:

javax.swing.SwingConstants, javax.swing.text.TabExpander

public class SyntaxView
extends javax.swing.text.PlainView

A Swing view implementation that colorizes lines of a SyntaxDocument using a TokenMarker.

This class should not be used directly; a SyntaxEditorKit should be used instead.

Field Summary

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, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST

Constructor Summary

Constructors

Constructor and Description
SyntaxView(javax.swing.text.Element elem) Creates a new SyntaxView for painting the specified element.

Method Summary

Modifier and Type	Method and Description
void	drawLine(int lineIndex, java.awt.Graphics g, int x, int y) Paints the specified line.

Methods inherited from class javax.swing.text.PlainView

changedUpdate, getPreferredSpan, insertUpdate, modelToView, nextTabStop, paint, removeUpdate, setSize, viewToModel

Methods inherited from class javax.swing.text.View

append, breakView, createFragment, 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, viewToModel

Methods inherited from class java.lang.Object

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

Constructor Detail

SyntaxView

public SyntaxView(javax.swing.text.Element elem)

Creates a new SyntaxView for painting the specified element.

Parameters:

elem - The element

Method Detail

drawLine

public void drawLine(int lineIndex,
                     java.awt.Graphics g,
                     int x,
                     int y)

Paints the specified line.

This method performs the following:

• Gets the token marker and color table from the current document, typecast to a SyntaxDocument.
• Tokenizes the required line by calling the markTokens() method of the token marker.
• Paints each token, obtaining the color by looking up the the Token.id value in the color table.

If either the document doesn't implement SyntaxDocument, or if the returned token marker is null, the line will be painted with no colorization.

Overrides:

drawLine in class javax.swing.text.PlainView

Parameters:

lineIndex - The line number

g - The graphics context

x - The x co-ordinate where the line should be painted

y - The y co-ordinate where the line should be painted