kawigi.editor
Class VBView

java.lang.Object
  javax.swing.text.View
      javax.swing.text.PlainView
          kawigi.editor.GenericView
              kawigi.editor.VBView

All Implemented Interfaces:

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

public class VBView
extends GenericView

Implementation of a Visual Basic implementation of a View that hilights syntax attributes.

Field Summary

protected static java.util.Hashtable<java.lang.String,java.awt.Color>

colorHash A map from token to its color.

Fields inherited from class kawigi.editor.GenericView

classColor, commentColor, directiveColor, highlightKey1, highlightKey2, keywordColor, lineIndex, operatorColor, parseIndex, stringColor, tagColor, typeColor

Fields inherited from class javax.swing.text.PlainView

metrics

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

VBView(javax.swing.text.Element e)
Creates an instance of VBView and passes along the Element.

Method Summary

protected int	drawSelectedText(java.awt.Graphics g, int x, int y, int p0, int p1) Overridden from PlainView - this method gets called to render every element of selected text, so that I could change how it's displayed if I want.
protected int	drawTabbedText(java.lang.String s, int x, int y, java.awt.Graphics g, int startOffset, boolean selected) Renders the text segment onto the given Grapnics context.
protected int	drawUnselectedText(java.awt.Graphics g, int x, int y, int p0, int p1) Overridden from PlainView - this method gets called to render every element of unselected text.
protected void	findIntervals(java.util.ArrayList<Interval> list, java.lang.String text, java.lang.String[] startEnd, boolean block) Helper function to help with getIntervals.
protected Interval	findName(java.lang.String text, int index, int startline, int endline, int endindex, java.lang.String[] startEnd, boolean block) Searches for a String identifier for a block in the text after the block start token.
protected java.awt.Color	getColor(java.lang.String word) Returns the color to use on the given token.
java.util.ArrayList<Interval>	getIntervals() Returns an ArrayList of Interval objects representing code block intervals in the document.
static void	initColors() Initializes the keywords/tokens and their colors.

Methods inherited from class kawigi.editor.GenericView

getColors, getTabSize, paint, readKeywords, resetTabStop, updateDamage

Methods inherited from class javax.swing.text.PlainView

changedUpdate, damageLineRange, drawLine, getLineBuffer, getPreferredSpan, insertUpdate, lineToRect, modelToView, nextTabStop, removeUpdate, setSize, updateMetrics, viewToModel

Methods inherited from class javax.swing.text.View

append, breakView, 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, updateChildren, updateLayout, viewToModel

Methods inherited from class java.lang.Object

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

Field Detail

colorHash

protected static java.util.Hashtable<java.lang.String,java.awt.Color> colorHash

A map from token to its color.

Constructor Detail

VBView

public VBView(javax.swing.text.Element e)

Creates an instance of VBView and passes along the Element.

Method Detail

initColors

public static void initColors()

Initializes the keywords/tokens and their colors. What this basically does is calls GenericView.getColors and GenericView.readKeywords. It is called when the class is loaded and any time when the color settings might have changed.

drawUnselectedText

protected int drawUnselectedText(java.awt.Graphics g,
                                 int x,
                                 int y,
                                 int p0,
                                 int p1)
                          throws javax.swing.text.BadLocationException

Overridden from PlainView - this method gets called to render every element of unselected text.

Overrides:

drawUnselectedText in class javax.swing.text.PlainView

Throws:

javax.swing.text.BadLocationException

drawSelectedText

protected int drawSelectedText(java.awt.Graphics g,
                               int x,
                               int y,
                               int p0,
                               int p1)
                        throws javax.swing.text.BadLocationException

Overridden from PlainView - this method gets called to render every element of selected text, so that I could change how it's displayed if I want.

Overrides:

drawSelectedText in class javax.swing.text.PlainView

Throws:

javax.swing.text.BadLocationException

drawTabbedText

protected int drawTabbedText(java.lang.String s,
                             int x,
                             int y,
                             java.awt.Graphics g,
                             int startOffset,
                             boolean selected)

Renders the text segment onto the given Grapnics context. Originally, this looked a lot like drawTabbedText from the javax.swing.text.Utilities class with a little bit of tokenizing, but now it's pretty much modified to my own style. Unfortunately, at some point in time, my indentation got all weird (probably as a result of me using tabs and the original implementation mixing spaces and tabs), so there may be some weird-looking parts left in the code. This is the magic of my syntax hilighting for VB.

getColor

protected java.awt.Color getColor(java.lang.String word)

Returns the color to use on the given token. This will return the default foreground color, if no special color is assigned to that token.

getIntervals

public java.util.ArrayList<Interval> getIntervals()

Returns an ArrayList of Interval objects representing code block intervals in the document. This version is specifically for finding blocks in the Visual Basic language.

Overrides:

getIntervals in class GenericView

findIntervals

protected void findIntervals(java.util.ArrayList<Interval> list,
                             java.lang.String text,
                             java.lang.String[] startEnd,
                             boolean block)

Helper function to help with getIntervals. Puts the intervals into the list in an in-order traversal of blocks between startEnd[0] and startEnd[1]. This is modified from the C-syntax-based one in GenericView to work better with VB's string and comment syntax.

Overrides:

findIntervals in class GenericView

findName

protected Interval findName(java.lang.String text,
                            int index,
                            int startline,
                            int endline,
                            int endindex,
                            java.lang.String[] startEnd,
                            boolean block)

Searches for a String identifier for a block in the text after the block start token. Overridden from GenericView for VB. This language is like one big special case, relative to the other three allowed by TopCoder.

Overrides:

findName in class GenericView