ReverseHighlighter.java

Index Score
edu.rice.cs.drjava.ui
DrJava

View: Reasons, Metrics, Source Code

These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.

MetricDescription
JAVA0034JAVA0034 Missing braces in if statement
DECL_COMMENTSComments in declarations
PARAMSNumber of formal parameter declarations
JAVA0108JAVA0108 Incorrect javadoc: no @param tag for 'parameter'
OPERANDSNumber of operands
INTERFACE_COMPLEXITYInterface complexity
SIZESize of the file in bytes
CYCLOMATICCyclomatic complexity
PROGRAM_LENGTHHalstead program length
OPERATORSNumber of operators
BLOCKSNumber of blocks
LOGICAL_LINESNumber of statements
JAVA0179JAVA0179 Local variable hides visible field
UNIQUE_OPERANDSNumber of unique operands
LINESNumber of lines in the source file
PROGRAM_VOCABHalstead program vocabulary
ELOCEffective lines of code
RETURNSNumber of return points from functions
EXEC_COMMENTSComments in executable code
LOOPSNumber of loops
LINE_COMMENTNumber of line comments
JAVA0138JAVA0138 N parameters defined for method (maximum: M)
LOCLines of code
JAVA0143JAVA0143 Synchronized method
COMPARISONSNumber of comparison operators
COMMENTSComment lines
JAVA0177JAVA0177 Variable declaration missing initializer
FUNCTIONSNumber of function declarations
JAVA0020JAVA0020 Field name does not have required form
DOC_COMMENTNumber of javadoc comment lines
JAVA0049JAVA0049 Nested block at depth N (maximum: M)
UNIQUE_OPERATORSNumber of unique operators
JAVA0130JAVA0130 Non-static method does not use instance fields
JAVA0075JAVA0075 Method parameter hides field
EXITSProcedure exits
JAVA0137JAVA0137 Non-abstract class missing constructor
JAVA0008JAVA0008 Empty catch block
JAVA0119JAVA0119 Control variable changed within body of for loop
NEST_DEPTHMaximum nesting depth
PROGRAM_VOLUMEHalstead program volume
JAVA0126JAVA0126 Method declares unchecked exception in throws
JAVA0110JAVA0110 Incorrect javadoc: no @return tag
JAVA0043JAVA0043 Inner class does not use outer class
JAVA0123JAVA0123 Use all three components of for loop
JAVA0117JAVA0117 Missing javadoc: method 'method'
JAVA0068JAVA0068 Modifiers not declared in recommended order
JAVA0145JAVA0145 Tab character used in source file
/*BEGIN_COPYRIGHT_BLOCK * * Copyright (c) 2001-2008, JavaPLT group at Rice University (drjava@rice.edu) * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the names of DrJava, the JavaPLT group, Rice University, nor the * names of its contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * This software is Open Source Initiative approved Open Source Software. * Open Source Initative Approved is a trademark of the Open Source Initiative. * * This file is part of DrJava. Download the current version of this project * from http://www.drjava.org/ or http://sourceforge.net/projects/drjava/ * * END_COPYRIGHT_BLOCK*/ package edu.rice.cs.drjava.ui; import javax.swing.text.*; import java.util.ArrayList; import java.awt.*; import javax.swing.plaf.*; import javax.swing.*; /** Implements the Highlighter interfaces. Implements a simple highlight painter, but stores * the highlights in reverse order. That means that the selection (for copying) is always * the foremost hightlight, and after that, the highlights are drawn from most recent * to oldest. * Based on DefaultHighlighter by Timothy Prinzing, version 1.39 12/19/03 * Unfortunately, as the vector of highlights in DefaultHighlighter was private, there was * no efficient way to make use of inheritance. */ public class ReverseHighlighter extends DefaultHighlighter { /** Creates a new ReverseHighlighter object. */ public ReverseHighlighter() { drawsLayeredHighlights = true; } // ---- Highlighter methods ---------------------------------------------- /** Renders the highlights. * * @param g the graphics context */ public void paint(Graphics g) { // PENDING(prinz) - should cull ranges not visible int len = _highlights.size(); for (int i = 0; i < len; i++) { HighlightInfo info = _highlights.get(i); if (! (info instanceof LayeredHighlightInfo)) { // Avoid allocing unless we need it. Rectangle a = component.getBounds(); Insets insets = component.getInsets(); a.x = insets.left; a.y = insets.top; a.width -= insets.left + insets.right; a.height -= insets.top + insets.bottom; for (; i < len; i++) { info = _highlights.get(i); if (! (info instanceof LayeredHighlightInfo)) { Highlighter.HighlightPainter p = info.getPainter(); p.paint(g, info.getStartOffset(), info.getEndOffset(), a, component); } } } } } /** Called when the UI is being installed into the interface of a JTextComponent. Installs the editor, and * removes any existing highlights. * @param c the editor component * @see Highlighter#install */ public void install(JTextComponent c) { component = c; removeAllHighlights(); } /** Called when the UI is being removed from the interface of a JTextComponent. * @param c the component * @see Highlighter#deinstall */ public void deinstall(JTextComponent c) { component = null; } //static edu.rice.cs.util.Log _log = new edu.rice.cs.util.Log("highlighter.txt",true); /** Adds a highlight to the view. Returns a tag that can be used to refer to the highlight. * @param p0 the start offset of the range to highlight >= 0 * @param p1 the end offset of the range to highlight >= p0 * @param p the painter to use to actually render the highlight * @return an object that can be used as a tag to refer to the highlight * @exception BadLocationException if the specified location is invalid */ public Object addHighlight(int p0, int p1, Highlighter.HighlightPainter p) throws BadLocationException { Document doc = component.getDocument(); HighlightInfo i = (getDrawsLayeredHighlights() && (p instanceof LayeredHighlighter.LayerPainter)) ? new LayeredHighlightInfo() : new HighlightInfo(); i._painter = p; i.p0 = doc.createPosition(p0); i.p1 = doc.createPosition(p1); int insertPos = _highlights.size(); if (p instanceof DrJavaHighlightPainter) { while (insertPos > 0) { HighlightInfo hli = _highlights.get( insertPos-1 ); if (hli.getPainter() instanceof DrJavaHighlightPainter) --insertPos; else break; } } else if (p instanceof DefaultHighlightPainter) { while (insertPos > 0) { HighlightInfo hli = _highlights.get( insertPos-1 ); if (hli.getPainter() instanceof DefaultHighlightPainter) --insertPos; else break; } } else if (p instanceof DefaultFrameHighlightPainter) { while (insertPos > 0) { HighlightInfo hli = _highlights.get( insertPos-1 ); if (hli.getPainter() instanceof DefaultHighlightPainter || hli.getPainter() instanceof DefaultFrameHighlightPainter) --insertPos; else break; } } else { insertPos = 0; } _highlights.add(insertPos, i); //_log.log(p.toString() + ", pos: " + insertPos); safeDamageRange(p0, p1); return i; } /** Removes a highlight from the view. * * @param tag the reference to the highlight */ public void removeHighlight(Object tag) { if (tag instanceof LayeredHighlightInfo) { LayeredHighlightInfo lhi = (LayeredHighlightInfo)tag; if (lhi.width > 0 && lhi.height > 0) { component.repaint(lhi.x, lhi.y, lhi.width, lhi.height); } } else { HighlightInfo info = (HighlightInfo) tag; safeDamageRange(info.p0, info.p1); } _highlights.remove(tag); } /** Removes all highlights. */ public void removeAllHighlights() { TextUI mapper = component.getUI(); if (getDrawsLayeredHighlights()) { int len = _highlights.size(); if (len != 0) { int minX = 0; int minY = 0; int maxX = 0; int maxY = 0; int p0 = -1; int p1 = -1; for (int i = 0; i < len; i++) { HighlightInfo hi = _highlights.get(i); if (hi instanceof LayeredHighlightInfo) { LayeredHighlightInfo info = (LayeredHighlightInfo)hi; minX = Math.min(minX, info.x); minY = Math.min(minY, info.y); maxX = Math.max(maxX, info.x + info.width); maxY = Math.max(maxY, info.y + info.height); } else { if (p0 == -1) { p0 = hi.p0.getOffset(); p1 = hi.p1.getOffset(); } else { p0 = Math.min(p0, hi.p0.getOffset()); p1 = Math.max(p1, hi.p1.getOffset()); } } } if (minX != maxX && minY != maxY) { component.repaint(minX, minY, maxX - minX, maxY - minY); } if (p0 != -1) { try { safeDamageRange(p0, p1); } catch (BadLocationException e) {} } _highlights.clear(); } } else if (mapper != null) { int len = _highlights.size(); if (len != 0) { int p0 = Integer.MAX_VALUE; int p1 = 0; for (int i = 0; i < len; i++) { HighlightInfo info = _highlights.get(i); p0 = Math.min(p0, info.p0.getOffset()); p1 = Math.max(p1, info.p1.getOffset()); } try { safeDamageRange(p0, p1); } catch (BadLocationException e) {} _highlights.clear(); } } } /** Changes a highlight. * * @param tag the highlight tag * @param p0 the beginning of the range >= 0 * @param p1 the end of the range >= p0 * @exception BadLocationException if the specified location is invalid */ public void changeHighlight(Object tag, int p0, int p1) throws BadLocationException { Document doc = component.getDocument(); if (tag instanceof LayeredHighlightInfo) { LayeredHighlightInfo lhi = (LayeredHighlightInfo)tag; if (lhi.width > 0 && lhi.height > 0) { component.repaint(lhi.x, lhi.y, lhi.width, lhi.height); } // Mark the highlights region as invalid, it will reset itself // next time asked to paint. lhi.width = lhi.height = 0; lhi.p0 = doc.createPosition(p0); lhi.p1 = doc.createPosition(p1); safeDamageRange(Math.min(p0, p1), Math.max(p0, p1)); } else { HighlightInfo info = (HighlightInfo) tag; int oldP0 = info.p0.getOffset(); int oldP1 = info.p1.getOffset(); if (p0 == oldP0) safeDamageRange(Math.min(oldP1, p1), Math.max(oldP1, p1)); else if (p1 == oldP1) safeDamageRange(Math.min(p0, oldP0), Math.max(p0, oldP0)); else { safeDamageRange(oldP0, oldP1); safeDamageRange(p0, p1); } info.p0 = doc.createPosition(p0); info.p1 = doc.createPosition(p1); // TODO: figure out what is wrong here. The preceding lines are dead code. } } /** Makes a copy of the highlights. Does not actually clone each highlight, * but only makes references to them. * * @return the copy * @see Highlighter#getHighlights */ public Highlighter.Highlight[] getHighlights() { int size = _highlights.size(); if (size == 0) { return noHighlights; } Highlighter.Highlight[] h = _highlights.toArray(EMTPY_HIGHLIGHTS); return h; } private static final Highlight[] EMTPY_HIGHLIGHTS = new Highlighter.Highlight[0]; /** When leaf Views (such as LabelView) are rendering they should * call into this method. If a highlight is in the given region it will * be drawn immediately. * * @param g Graphics used to draw * @param p0 starting offset of view * @param p1 ending offset of view * @param viewBounds Bounds of View * @param editor JTextComponent * @param view View instance being rendered */ public void paintLayeredHighlights(Graphics g, int p0, int p1, Shape viewBounds, JTextComponent editor, View view) { for (int counter = _highlights.size() - 1; counter >= 0; counter--) { Object tag = _highlights.get(counter); if (tag instanceof LayeredHighlightInfo) { LayeredHighlightInfo lhi = (LayeredHighlightInfo)tag; int start = lhi.getStartOffset(); int end = lhi.getEndOffset(); if ((p0 < start && p1 > start) || (p0 >= start && p0 < end)) { lhi.paintLayeredHighlights(g, p0, p1, viewBounds, editor, view); } } } } /** Queues damageRange() call into event dispatch thread to be sure that views are in consistent state. */ private void safeDamageRange(final Position p0, final Position p1) { safeDamager.damageRange(p0, p1); } /** Queues damageRange() call into event dispatch thread to be sure that views are in consistent state. */ private void safeDamageRange(int a0, int a1) throws BadLocationException { Document doc = component.getDocument(); safeDamageRange(doc.createPosition(a0), doc.createPosition(a1)); } /** If true, highlights are drawn as the Views draw the text. That is * the Views will call into <code>paintLayeredHighlight</code> which * will result in a rectangle being drawn before the text is drawn * (if the offsets are in a highlighted region that is). For this to * work the painter supplied must be an instance of * LayeredHighlightPainter. */ public void setDrawsLayeredHighlights(boolean newValue) { drawsLayeredHighlights = newValue; } public boolean getDrawsLayeredHighlights() { return drawsLayeredHighlights; } // ---- member variables -------------------------------------------- private final static Highlighter.Highlight[] noHighlights = new Highlighter.Highlight[0]; private ArrayList<HighlightInfo> _highlights = new ArrayList<HighlightInfo>(); // Vector<HighlightInfo> private JTextComponent component; private boolean drawsLayeredHighlights; private SafeDamager safeDamager = new SafeDamager(); /** Simple highlight painter that draws a rectangular box around text. */ public static class DefaultFrameHighlightPainter extends LayeredHighlighter.LayerPainter { /** Constructs a new highlight painter. If c is null, the JTextComponent will be queried for its selection color. * @param c the color for the highlight * @param t the thickness in pixels */ public DefaultFrameHighlightPainter(Color c, int t) { color = c; thickness = t; } /** @return the color of the highlight */ public Color getColor() { return color; } /** @return thickness in pixels */ public int getThickness() { return thickness; } // --- HighlightPainter methods --------------------------------------- private void drawRectThick(Graphics g, int x, int y, int width, int height, int thick) { if (thick < 2) { g.drawRect(x, y, width, height); } else { g.fillRect(x, y, width, thick); g.fillRect(x, y+height-thick, width, thick); g.fillRect(x, y, thick, height); g.fillRect(x+width-thick, y, thick, height); } } /** Paints a highlight. * @param g the graphics context * @param offs0 the starting model offset >= 0 * @param offs1 the ending model offset >= offs1 * @param bounds the bounding box for the highlight * @param c the editor */ public void paint(Graphics g, int offs0, int offs1, Shape bounds, JTextComponent c) { Rectangle alloc = bounds.getBounds(); try { // --- determine locations --- TextUI mapper = c.getUI(); Rectangle p0 = mapper.modelToView(c, offs0); Rectangle p1 = mapper.modelToView(c, offs1); // --- render --- Color color = getColor(); if (color == null) g.setColor(c.getSelectionColor()); else g.setColor(color); if (p0.y == p1.y) { // same line, render a rectangle Rectangle r = p0.union(p1); drawRectThick(g, r.x, r.y, r.width, r.height, thickness); } else { // different lines int p0ToMarginWidth = alloc.x + alloc.width - p0.x; drawRectThick(g, p0.x, p0.y, p0ToMarginWidth, p0.height, thickness); if ((p0.y + p0.height) != p1.y) drawRectThick(g, alloc.x, p0.y + p0.height, alloc.width, p1.y - (p0.y + p0.height), thickness); drawRectThick(g, alloc.x, p1.y, (p1.x - alloc.x), p1.height, thickness); } } catch (BadLocationException e) { /* can't render */ } } // --- LayerPainter methods ---------------------------- /** Paints a portion of a highlight. * @param g the graphics context * @param offs0 the starting model offset >= 0 * @param offs1 the ending model offset >= offs1 * @param bounds the bounding box of the view, which is not necessarily the region to paint. * @param c the editor * @param view View painting for * @return region drawing occured in */ public Shape paintLayer(Graphics g, int offs0, int offs1, Shape bounds, JTextComponent c, View view) { Color color = getColor(); if (color == null) g.setColor(c.getSelectionColor()); else g.setColor(color); if (offs0 == view.getStartOffset() && offs1 == view.getEndOffset()) { // Contained in view, can just use bounds. Rectangle alloc; if (bounds instanceof Rectangle) alloc = (Rectangle)bounds; else alloc = bounds.getBounds(); drawRectThick(g, alloc.x, alloc.y, alloc.width, alloc.height, thickness); return alloc; } else { // Should only render part of View. try { // --- determine locations --- Shape shape = view.modelToView(offs0, Position.Bias.Forward, offs1,Position.Bias.Backward, bounds); Rectangle r = (shape instanceof Rectangle) ? (Rectangle)shape : shape.getBounds(); drawRectThick(g, r.x, r.y, r.width, r.height, thickness); return r; } catch (BadLocationException e) { /* can't render */ } } // Only if exception return null; } private Color color; private int thickness; } /** Simple highlight painter that underlines text. */ public static class DefaultUnderlineHighlightPainter extends LayeredHighlighter.LayerPainter { /** Constructs a new highlight painter. If c< is null, the JTextComponent will be queried for its selection color. * @param c the color for the highlight * @param t the thickness in pixels */ public DefaultUnderlineHighlightPainter(Color c, int t) { color = c; thickness = t; } /** @return the color of the highlight */ public Color getColor() { return color; } /** @return thickness in pixels */ public int getThickness() { return thickness; } // --- HighlightPainter methods --------------------------------------- private void drawUnderline(Graphics g, int x, int y, int width, int height, int thick) { g.fillRect(x, y+height-thick, width, thick); } /** Paints a highlight. * @param g the graphics context * @param offs0 the starting model offset >= 0 * @param offs1 the ending model offset >= offs1 * @param bounds the bounding box for the highlight * @param c the editor */ public void paint(Graphics g, int offs0, int offs1, Shape bounds, JTextComponent c) { Rectangle alloc = bounds.getBounds(); try { // --- determine locations --- TextUI mapper = c.getUI(); Rectangle p0 = mapper.modelToView(c, offs0); Rectangle p1 = mapper.modelToView(c, offs1); // --- render --- Color color = getColor(); if (color == null) g.setColor(c.getSelectionColor()); else g.setColor(color); if (p0.y == p1.y) { // same line, render a rectangle Rectangle r = p0.union(p1); drawUnderline(g, r.x, r.y, r.width, r.height, thickness); } else { // different lines int p0ToMarginWidth = alloc.x + alloc.width - p0.x; drawUnderline(g, p0.x, p0.y, p0ToMarginWidth, p0.height, thickness); if ((p0.y + p0.height) != p1.y) drawUnderline(g, alloc.x, p0.y + p0.height, alloc.width, p1.y - (p0.y + p0.height), thickness); drawUnderline(g, alloc.x, p1.y, (p1.x - alloc.x), p1.height, thickness); } } catch (BadLocationException e) { /* can't render */ } } // --- LayerPainter methods ---------------------------- /** Paints a portion of a highlight. * @param g the graphics context * @param offs0 the starting model offset >= 0 * @param offs1 the ending model offset >= offs1 * @param bounds the bounding box of the view, which is not necessarily the region to paint. * @param c the editor * @param view View painting for * @return region drawing occured in */ public Shape paintLayer(Graphics g, int offs0, int offs1, Shape bounds, JTextComponent c, View view) { Color color = getColor(); if (color == null) g.setColor(c.getSelectionColor()); else g.setColor(color); if (offs0 == view.getStartOffset() && offs1 == view.getEndOffset()) { // Contained in view, can just use bounds Rectangle alloc; if (bounds instanceof Rectangle) alloc = (Rectangle)bounds; else alloc = bounds.getBounds(); drawUnderline(g, alloc.x, alloc.y, alloc.width, alloc.height, thickness); return alloc; } else { // Should only render part of View. try { // --- determine locations --- Shape shape = view.modelToView(offs0, Position.Bias.Forward, offs1,Position.Bias.Backward, bounds); Rectangle r = (shape instanceof Rectangle) ? (Rectangle)shape : shape.getBounds(); drawUnderline(g, r.x, r.y, r.width, r.height, thickness); return r; } catch (BadLocationException e) { /* can't render */ } } // Only if exception return null; } private Color color; private int thickness; } class HighlightInfo implements Highlighter.Highlight { Position p0; Position p1; Highlighter.HighlightPainter _painter; public int getStartOffset() { return p0.getOffset(); } public int getEndOffset() { return p1.getOffset(); } public Highlighter.HighlightPainter getPainter() { return _painter; } } /** This class is a wrapper for the DefaultHighlightPainter that allows us to tell whether a highlight was * requested by DrJava or by Swing (as in selected text). */ public static class DrJavaHighlightPainter extends DefaultHighlightPainter { public DrJavaHighlightPainter(Color c) { super(c); } } /** LayeredHighlightPainter is used when a drawsLayeredHighlights is * true. It maintains a rectangle of the region to paint. */ class LayeredHighlightInfo extends HighlightInfo { void union(Shape bounds) { if (bounds == null) return; Rectangle alloc; if (bounds instanceof Rectangle) alloc = (Rectangle)bounds; else alloc = bounds.getBounds(); if (width == 0 || height == 0) { x = alloc.x; y = alloc.y; width = alloc.width; height = alloc.height; } else { width = Math.max(x + width, alloc.x + alloc.width); height = Math.max(y + height, alloc.y + alloc.height); x = Math.min(x, alloc.x); width -= x; y = Math.min(y, alloc.y); height -= y; } } /** Restricts the region based on the receivers offsets and messages the painter to paint the region.*/ void paintLayeredHighlights(Graphics g, int p0, int p1, Shape viewBounds, JTextComponent editor, View view) { int start = getStartOffset(); int end = getEndOffset(); // Restrict the region to what we represent p0 = Math.max(start, p0); p1 = Math.min(end, p1); // Paint the appropriate region using the painter and union the effected region with our bounds. LayeredHighlighter.LayerPainter lp = (LayeredHighlighter.LayerPainter) _painter; union(lp.paintLayer(g, p0, p1, viewBounds, editor, view)); } int x; int y; int width; int height; } /** This class invokes <code>mapper.damageRange</code> in EventDispatchThread. The only one instance per Highlighter * is cretaed. When a number of ranges should be damaged it collects them into queue and damages them in consecutive * order in <code>run</code> call. */ class SafeDamager implements Runnable { private ArrayList<Position> p0 = new ArrayList<Position>(10); private ArrayList<Position> p1 = new ArrayList<Position>(10); private Document lastDoc = null; /** Executes range(s) damage and cleans range queue. */ public synchronized void run() { if (component != null) { TextUI mapper = component.getUI(); if (mapper != null && lastDoc == component.getDocument()) { // Doc must match to properly display highlights int len = p0.size(); for (int i = 0; i < len; i++){ mapper.damageRange(component, p0.get(i).getOffset(), p1.get(i).getOffset()); } } } p0.clear(); p1.clear(); // release reference lastDoc = null; } /** Adds range to be damaged to the range queue. If the range queue is empty (the first call or run() was already * invoked) then adds this class instance into EventDispatch queue. The method also tracks if the current document * changed or component is null. In this case it removes all ranges added before from range queue. */ public synchronized void damageRange(Position pos0, Position pos1) { if (component == null) { p0.clear(); lastDoc = null; return; } boolean addToQueue = p0.isEmpty(); Document curDoc = component.getDocument(); if (curDoc != lastDoc) { if (!p0.isEmpty()) { p0.clear(); p1.clear(); } lastDoc = curDoc; } p0.add(pos0); p1.add(pos1); if (addToQueue) EventQueue.invokeLater(this); } } }

The table below shows all metrics for ReverseHighlighter.java.

MetricValueDescription
BLOCKS98.00Number of blocks
BLOCK_COMMENT35.00Number of block comment lines
COMMENTS189.00Comment lines
COMMENT_DENSITY 0.56Comment density
COMPARISONS54.00Number of comparison operators
CYCLOMATIC111.00Cyclomatic complexity
DECL_COMMENTS40.00Comments in declarations
DOC_COMMENT130.00Number of javadoc comment lines
ELOC340.00Effective lines of code
EXEC_COMMENTS16.00Comments in executable code
EXITS48.00Procedure exits
FUNCTIONS34.00Number of function declarations
HALSTEAD_DIFFICULTY120.41Halstead difficulty
HALSTEAD_EFFORT 0.00Halstead effort
INTERFACE_COMPLEXITY124.00Interface complexity
JAVA0001 0.00JAVA0001 Package name does not contain only lower case letters
JAVA0002 0.00JAVA0002 Package name does not begin with a top level domain name or country code
JAVA0003 0.00JAVA0003 Minimize use of on-demand (.*) imports
JAVA0004 0.00JAVA0004 Unnecessary import from java.lang
JAVA0005 1.00JAVA0005 Imports not in specified order
JAVA0006 0.00JAVA0006 Empty finally block
JAVA0007 0.00JAVA0007 Should not declare public field
JAVA0008 2.00JAVA0008 Empty catch block
JAVA0009 0.00JAVA0009 Protected member in final class
JAVA0010 0.00JAVA0010 Non-instantiable class does not contain a non-private static member
JAVA0011 0.00JAVA0011 Abstract class does not contain an abstract method
JAVA0012 0.00JAVA0012 Non-constructor method with same name as declaring class
JAVA0013 0.00JAVA0013 Non-blank final field is not static
JAVA0014 0.00JAVA0014 Class with only static members has non-private constructor
JAVA0015 0.00JAVA0015 Package class contains public nested type
JAVA0016 0.00JAVA0016 Abstract class contains public constructor
JAVA0017 0.00JAVA0017 Class name does not have required form
JAVA0018 0.00JAVA0018 Method name does not have required form
JAVA0019 0.00JAVA0019 Interface name does not have required form
JAVA0020 2.00JAVA0020 Field name does not have required form
JAVA0021 0.00JAVA0021 Interface method name does not have required form
JAVA0022 0.00JAVA0022 Static final field name does not have required form
JAVA0023 0.00JAVA0023 Empty finalize method
JAVA0024 0.00JAVA0024 Empty class
JAVA0025 0.00JAVA0025 Method override is empty
JAVA0026 0.00JAVA0026 Finalize method with parameters
JAVA0029 0.00JAVA0029 Private method not used
JAVA0030 0.00JAVA0030 Private field not used
JAVA0031 0.00JAVA0031 Case statement not properly closed
JAVA0032 0.00JAVA0032 Switch statement missing default
JAVA0033 0.00JAVA0033 default: not last case in switch statement
JAVA003426.00JAVA0034 Missing braces in if statement
JAVA0035 0.00JAVA0035 Missing braces in for statement
JAVA0036 0.00JAVA0036 Missing braces in while statement
JAVA0038 0.00JAVA0038 Non-case label in switch statement
JAVA0039 0.00JAVA0039 Break statement with label
JAVA0040 0.00JAVA0040 Switch statement contains N cases (maximum: M)
JAVA0041 0.00JAVA0041 Nested synchronized block
JAVA0042 0.00JAVA0042 Empty synchronized statement
JAVA0043 1.00JAVA0043 Inner class does not use outer class
JAVA0044 0.00JAVA0044 Serializable class with no instance variables
JAVA0045 0.00JAVA0045 Serializable class with only transient fields
JAVA0046 0.00JAVA0046 Name of class not derived from Exception ends with 'Exception'
JAVA0047 0.00JAVA0047 Serializable class derives from invalid base class
JAVA0048 0.00JAVA0048 Name of class derived from Exception does not end with 'Exception'
JAVA0049 2.00JAVA0049 Nested block at depth N (maximum: M)
JAVA0050 0.00JAVA0050 Class derives from java.lang.Error
JAVA0051 0.00JAVA0051 Class derives from java.lang.RuntimeException
JAVA0052 0.00JAVA0052 Class derives from java.lang.Throwable
JAVA0053 0.00JAVA0053 Unused label
JAVA0054 0.00JAVA0054 Inheritance depth N exceeds maximum M
JAVA0055 0.00JAVA0055 Class should be interface
JAVA0056 0.00JAVA0056 Unnecessary abstract modifier for interface or annotation
JAVA0057 0.00JAVA0057 Unnecessary default constructor
JAVA0058 0.00JAVA0058 Constructor calls super()
JAVA0059 0.00JAVA0059 Method override only calls super()
JAVA0061 0.00JAVA0061 Inaccessible member in anonymous class
JAVA0062 0.00JAVA0062 Public class missing public member or protected constructor
JAVA0063 0.00JAVA0063 Identifier name should not contain '$'
JAVA0064 0.00JAVA0064 N variations of identifier name (maximum: M)
JAVA0065 0.00JAVA0065 Unnecessary final modifier for method in final class
JAVA0066 0.00JAVA0066 Unnecessary modifier for interface nested type
JAVA0067 0.00JAVA0067 Array descriptor on identifier name
JAVA0068 1.00JAVA0068 Modifiers not declared in recommended order
JAVA0071 0.00JAVA0071 Strings compared with ==
JAVA0073 0.00JAVA0073 Integer division in floating-point context
JAVA0074 0.00JAVA0074 Use of Object.notify()
JAVA0075 2.00JAVA0075 Method parameter hides field
JAVA0076 2.00JAVA0076 Use of magic number
JAVA0077 0.00JAVA0077 Private field not used in declaring class
JAVA0078 0.00JAVA0078 Floating point values compared with ==
JAVA0079 0.00JAVA0079 Use of instance to reference static member
JAVA0080 1.00JAVA0080 Import declaration not used
JAVA0081 0.00JAVA0081 Boolean literal in comparison
JAVA0082 0.00JAVA0082 Unnecessary widening cast
JAVA0083 0.00JAVA0083 Unnecessary instanceof test
JAVA0084 0.00JAVA0084 Should use compound assignment operator
JAVA0085 0.00JAVA0085 Use of sun.* class
JAVA0087 0.00JAVA0087 Use of Thread.sleep()
JAVA0089 0.00JAVA0089 Use of restricted package
JAVA0092 0.00JAVA0092 Use of restricted type
JAVA0093 0.00JAVA0093 Redundant assignment
JAVA0094 0.00JAVA0094 Field hides a superclass field
JAVA0095 0.00JAVA0095 Uninitialized private field
JAVA0096 0.00JAVA0096 Field in nested class hides outer field
JAVA0098 2.00JAVA0098 Minimize use of implicit field initializers
JAVA0100 0.00JAVA0100 Class contains N non-final fields (maximum: M)
JAVA0101 0.00JAVA0101 Unnecessary modifier for field in interface
JAVA0102 0.00JAVA0102 Last statement in finalize() not super.finalize()
JAVA0103 0.00JAVA0103 Explicit call to finalize()
JAVA0104 0.00JAVA0104 finalize() only calls super.finalize()
JAVA0105 0.00JAVA0105 Duplicate import declaration
JAVA0106 0.00JAVA0106 Unnecessary import from current package
JAVA010812.00JAVA0108 Incorrect javadoc: no @param tag for 'parameter'
JAVA0109 0.00JAVA0109 Incorrect javadoc: no parameter 'parameter'
JAVA0110 0.00JAVA0110 Incorrect javadoc: no @return tag
JAVA0111 0.00JAVA0111 Incorrect javadoc: @return tag for void method
JAVA0112 0.00JAVA0112 Incorrect javadoc: no exception 'exception' in throws
JAVA0113 1.00JAVA0113 Incorrect javadoc: no @author tag
JAVA0114 1.00JAVA0114 Incorrect javadoc: no @version tag
JAVA0115 1.00JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception'
JAVA0116 0.00JAVA0116 Missing javadoc: field 'field'
JAVA0117 1.00JAVA0117 Missing javadoc: method 'method'
JAVA0118 0.00JAVA0118 Missing javadoc: type 'type'
JAVA0119 1.00JAVA0119 Control variable changed within body of for loop
JAVA0123 1.00JAVA0123 Use all three components of for loop
JAVA0125 0.00JAVA0125 Continue statement with label
JAVA0126 0.00JAVA0126 Method declares unchecked exception in throws
JAVA0128 0.00JAVA0128 Public constructor in non-public class
JAVA0130 2.00JAVA0130 Non-static method does not use instance fields
JAVA0131 0.00JAVA0131 Compatible method does not override base
JAVA0132 0.00JAVA0132 Method overload with compatible signature
JAVA0133 0.00JAVA0133 Non-synchronized method overrides synchronized method
JAVA0135 0.00JAVA0135 Only one of Object.equals and Object.hashCode defined: missing 'method'
JAVA0136 0.00JAVA0136 N methods defined in class (maximum: M)
JAVA0137 2.00JAVA0137 Non-abstract class missing constructor
JAVA0138 6.00JAVA0138 N parameters defined for method (maximum: M)
JAVA0139 0.00JAVA0139 Definition of main other than public static void main(java.lang.String[])
JAVA0141 0.00JAVA0141 Unnecessary modifier for method in interface
JAVA0143 2.00JAVA0143 Synchronized method
JAVA0144 0.00JAVA0144 Line exceeds maximum M characters
JAVA0145 0.00JAVA0145 Tab character used in source file
JAVA0150 0.00JAVA0150 java.lang.Error (or subclass) thrown
JAVA0153 0.00JAVA0153 Inefficient conversion of integer to string
JAVA0159 0.00JAVA0159 Inefficient conversion of string to integer
JAVA0160 0.00JAVA0160 Method does not throw specified exception
JAVA0161 0.00JAVA0161 Conditional wait() not in loop
JAVA0163 0.00JAVA0163 Empty statement
JAVA0165 0.00JAVA0165 Conflicting return statement in finally block
JAVA0166 0.00JAVA0166 Generic exception caught
JAVA0167 0.00JAVA0167 ThreadDeath not rethrown
JAVA0169 0.00JAVA0169 Unnecessary catch block: exception 'exception'
JAVA0170 0.00JAVA0170 Caught exception not derived from java.lang.Exception
JAVA0171 0.00JAVA0171 Unused local variable
JAVA0173 0.00JAVA0173 Unused method parameter
JAVA0174 0.00JAVA0174 Assigned local variable never used
JAVA0175 0.00JAVA0175 Successive assignment to variable
JAVA0176 0.00JAVA0176 Local variable name does not have required form
JAVA0177 3.00JAVA0177 Variable declaration missing initializer
JAVA0179 4.00JAVA0179 Local variable hides visible field
JAVA0233 0.00JAVA0233 Definition of serialVersionUID other than 'private static final long serialVersionUID'
JAVA0234 0.00JAVA0234 Class is Serializable but does not define serialVersionUID
JAVA0235 0.00JAVA0235 Class defines serialVersionUID but does not implement Serializable
JAVA0236 0.00JAVA0236 Attempt to clone an object which does not implement Cloneable
JAVA0237 0.00JAVA0237 Class implements Cloneable but does not have public clone method
JAVA0238 0.00JAVA0238 Clone method does not call super.clone()
JAVA0239 0.00JAVA0239 Class declares 'readObject' or 'writeObject' but does not implement Serializable
JAVA0240 0.00JAVA0240 Serializable class which declares readObject or writeObject but not both
JAVA0241 0.00JAVA0241 'readObject' or 'writeObject' should be declared private in Serializable class
JAVA0242 0.00JAVA0242 Transient field in non-Serializable class
JAVA0243 0.00JAVA0243 'readResolve' or 'writeReplace' should be declared private or protected
JAVA0244 0.00JAVA0244 Field or method name in subclass differs only by case from inherited field or method
JAVA0245 0.00JAVA0245 JUnit TestCase with non-trivial constructor
JAVA0246 0.00JAVA0246 JUnit assertXXX statement missing message parameter
JAVA0247 0.00JAVA0247 JUnit 'setUp()' and 'tearDown()' should call super method
JAVA0248 0.00JAVA0248 JUnit method 'setUp' or 'tearDown' with incorrect signature
JAVA0249 0.00JAVA0249 JUnit TestCase 'suite()' should be declared static
JAVA0250 0.00JAVA0250 JUnit TestCase declares testXXX method with incorrect signature
JAVA0251 0.00JAVA0251 Use '%n' for line breaks in printf/format for platform independence
JAVA0252 0.00JAVA0252 'enum' is a Java 1.5 reserved word
JAVA0253 0.00JAVA0253 Not all enum constants consumed in switch statement
JAVA0254 0.00JAVA0254 Use enhanced for loop construct instead of Iterator
JAVA0255 0.00JAVA0255 Result of method invocation not used
JAVA0256 0.00JAVA0256 Assignment of external collection/array to field
JAVA0257 0.00JAVA0257 Use of 'Constant Interface' anti-pattern
JAVA0258 0.00JAVA0258 Implement Iterable for foreach compatibility
JAVA0259 1.00JAVA0259 Return of collection/array field
JAVA0260 0.00JAVA0260 Use 'enum' instead of Enumerated Type pattern
JAVA0261 0.00JAVA0261 Use specialized Enum collection types
JAVA0262 0.00JAVA0262 Use of char in integer context
JAVA0263 0.00JAVA0263 Long literal ends with 'l' instead of 'L'
JAVA0264 0.00JAVA0264 Integer math in long context - check for overflow
JAVA0265 0.00JAVA0265 Use of Throwable.printStackTrace()
JAVA0266 0.00JAVA0266 Use of System.out
JAVA0267 0.00JAVA0267 Use of System.err
JAVA0269 0.00JAVA0269 Contents of StringBuffer never used
JAVA0270 0.00JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array
JAVA0271 0.00JAVA0271 Minimize use of on-demand (.*) static imports
JAVA0272 0.00JAVA0272 Thread.run() called
JAVA0273 0.00JAVA0273 Non-final derivative of Thread calls start() in constructor
JAVA0274 0.00JAVA0274 Serializable class has a synchronized readObject()
JAVA0275 0.00JAVA0275 Serializable class has a synchronized writeObject() and no other synchronized methods
JAVA0276 0.00JAVA0276 Unnecessary use of String constructor
JAVA0277 0.00JAVA0277 Iterator.next() implementation does not throw NoSuchElementException
JAVA0278 0.00JAVA0278 Unnecessary use of Boolean constructor
JAVA0279 0.00JAVA0279 Serialization method readObject or readObjectNoData calls an overridable method
JAVA0280 0.00JAVA0280 IllegalMonitorStateException caught
JAVA0281 0.00JAVA0281 Iterator.next() not called in loop
JAVA0282 0.00JAVA0282 Call to Iterator.next() in loop which does not test Iterator.hasNext()
JAVA0283 0.00JAVA0283 Control variable not updated in loop body
JAVA0284 0.00JAVA0284 Explicit garbage collection
JAVA0285 0.00JAVA0285 Dereference of potentially null variable
JAVA0286 0.00JAVA0286 Dereference of null variable
JAVA0287 0.00JAVA0287 Unnecessary null check
JAVA0288 0.00JAVA0288 Inconsistent null check
LINES699.00Number of lines in the source file
LINE_COMMENT24.00Number of line comments
LOC423.00Lines of code
LOGICAL_LINES243.00Number of statements
LOOPS 9.00Number of loops
NEST_DEPTH 6.00Maximum nesting depth
OPERANDS1329.00Number of operands
OPERATORS2156.00Number of operators
PARAMS69.00Number of formal parameter declarations
PROGRAM_LENGTH3485.00Halstead program length
PROGRAM_VOCAB352.00Halstead program vocabulary
PROGRAM_VOLUME 0.00Halstead program volume
RETURNS55.00Number of return points from functions
SIZE25953.00Size of the file in bytes
UNIQUE_OPERANDS298.00Number of unique operands
UNIQUE_OPERATORS54.00Number of unique operators
WHITESPACE87.00Number of whitespace lines