FontSelectionPanel.java
| Index Score | ||
|---|---|---|
 |
 |
org.xnap.gui.component |
 |
 |
XNap 3 |
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.
| Metric | Description | |
|---|---|---|
| DECL_COMMENTS | Comments in declarations |  |
| DOC_COMMENT | Number of javadoc comment lines | |
| COMMENTS | Comment lines | |
| SIZE | Size of the file in bytes | |
| LINE_COMMENT | Number of line comments | |
| RETURNS | Number of return points from functions | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| JAVA0113 | JAVA0113 Incorrect javadoc: no @author tag | |
| JAVA0076 | JAVA0076 Use of magic number | |
| FUNCTIONS | Number of function declarations | |
| LINES | Number of lines in the source file | |
| EXITS | Procedure exits | |
| JAVA0133 | JAVA0133 Non-synchronized method overrides synchronized method | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| LOGICAL_LINES | Number of statements | |
| PARAMS | Number of formal parameter declarations | |
| UNIQUE_OPERANDS | Number of unique operands | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| ELOC | Effective lines of code | |
| OPERATORS | Number of operators | |
| CYCLOMATIC | Cyclomatic complexity | |
| PROGRAM_LENGTH | Halstead program length | |
| JAVA0114 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0128 | JAVA0128 Public constructor in non-public class | |
| BLOCKS | Number of blocks | |
| OPERANDS | Number of operands | |
| JAVA0177 | JAVA0177 Variable declaration missing initializer | |
| LOC | Lines of code | |
| UNIQUE_OPERATORS | Number of unique operators | |
| EXEC_COMMENTS | Comments in executable code | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0173 | JAVA0173 Unused method parameter | |
| JAVA0130 | JAVA0130 Non-static method does not use instance fields | |
| JAVA0270 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| WHITESPACE | Number of whitespace lines | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
/*
* XNap - A P2P framework and client.
*
* See the file AUTHORS for copyright information.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* This class has been adopted for the XNap project.
*/
// Copyright (C) 2000 Greg Merrill (greghmerrill@yahoo.com)
// Distributed under the terms of the GNU General Public License (version 2)
// For details on the GNU GPL, please visit http://www.gnu.org/copyleft/gpl.html
// To find out more about this and other free software by Greg Merrill,
// please visit http://gregmerrill.imagineis.com
package org.xnap.gui.component;
import java.awt.Canvas;
import java.awt.Color;
import java.awt.Component;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsEnvironment;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.font.FontRenderContext;
import java.awt.font.GlyphVector;
import java.awt.geom.Rectangle2D;
import java.util.Observable;
import java.util.Observer;
import javax.swing.DefaultListCellRenderer;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.ListModel;
import javax.swing.ListSelectionModel;
import javax.swing.border.EmptyBorder;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
/**
A component which allows a user to select a font. Here is a code sample
demonstrating its use:
<a name="codeSample">
<p>
<!-- prefix each pre line with '*' to avoid javadoc whitespace bug -->
<pre>
* import java.awt.*;
* import java.awt.event.*;
* import javax.swing.*;
*
* public class FontSelectionPanelDemo {
* public static void main (String[] args) {
* final JFrame frame = new JFrame();
* JPanel panel = new JPanel(new BorderLayout());
* final FontSelectionPanel fontSelectionPanel = new FontSelectionPanel(
* new Font("Times New Roman", Font.BOLD+Font.ITALIC, 14)
* );
* panel.add(fontSelectionPanel, BorderLayout.CENTER);
* JButton button = new JButton("OK");
* button.addActionListener(new ActionListener () {
* public void actionPerformed (ActionEvent e) {
* try {
* JOptionPane.showMessageDialog(
* frame,
* "Selected font is: " + fontSelectionPanel.getSelectedFont(),
* "Selected Font",
* JOptionPane.INFORMATION_MESSAGE
* );
* }
* catch (FontSelectionPanel.InvalidFontException ife) {
* JOptionPane.showMessageDialog(
* frame,
* "You have not selected a valid font",
* "Invalid Font",
* JOptionPane.ERROR_MESSAGE
* );
* }
* }
* });
* panel.add(button, BorderLayout.SOUTH);
* frame.setContentPane(panel);
* frame.addWindowListener(new WindowAdapter () {
* public void windowClosing (WindowEvent e) { System.exit(0); }
* });
* frame.pack();
* frame.show();
* }
* }
</pre>
<p>
<a name="versionHistory">
<h3>Version History:</h3>
<dl>
<dt><b>1.1</b> (August 19, 2000)
<dd><tt>protected</tt> access to all major components now provided for the
benefit of subclasses<br>
Added methods
{@link #setSelectedFont(java.awt.Font)},
{@link #setSelectedFontFamily(String)},
{@link #setSelectedFontStyle(int)},
{@link #setSelectedFontSize(int)}<br>
GridBag fill strategy modified slightly to improve resizing behavior<br>
Changed sample code to use BorderLayout<br>
Added version history to javadocs
<dt><b>1.0</b> (August 15, 2000)
<dd>Initial release
</dl>
<p>
Copyright (C) 2000 Greg Merrill (
<a href="mailto:greghmerrill@yahoo.com">greghmerrill@yahoo.com</a>).
Distributed under the terms of the GNU General Public License (version 2).
For details on the GNU GPL, please visit
<a href="http://www.gnu.org/copyleft/gpl.html"
>http://www.gnu.org/copyleft/gpl.html</a>.
To find out more about this and other free software by Greg Merrill,
please visit <a href="http://gregmerrill.imagineis.com"
>http://gregmerrill.imagineis.com</a>
@author <a href="mailto:greghmerrill@yahoo.com">Greg Merrill</a>
@version 1.1
*/
public class FontSelectionPanel extends JPanel {
/**
Like {@link #FontSelectionPanel(java.awt.Font)}, except an initialFont of
<code>null</code> will be used.
*/
public FontSelectionPanel () {
this(null);
}
/**
Like {@link #FontSelectionPanel(java.awt.Font, String[], int[])}, except that
a default list of styles
(<code>{"Plain", "Bold", "Italic", "Bold Italic"}</code>) and font
sizes (<code>{8, 9, 10, 12, 14}</code>) will be used.
@param initialFont see
{@link #FontSelectionPanel(java.awt.Font, String[], int[])}
*/
public FontSelectionPanel (Font initialFont) {
this(
initialFont,
// Don't change the following two values without changing the javadocs
new String [] {"Plain", "Bold", "Italic", "Bold Italic"},
new int [] {8, 9, 10, 12, 14}
);
}
/**
Construct a new FontSelectionPanel whose family, style & size widget
selections are set according to the supplied initial Font. Additionally,
the style & size values available will be dictated by the values in
styleDisplayNames and predefinedSizes, respectively.
@param initialFont the newly constructed FontSelectionPanel's family,
style, and size widgets will be set according to this value. This value
may be null, in which case an initial font will be automatically created.
This auto-created font will have a family, style, and size corresponding
to the first avaiable value in the widget form family, style, and size
respectively.
@param styleDisplayNames must contain exactly four members. The members
of this array represent the following styles, in order: Font.PLAIN,
Font.BOLD, Font.ITALIC, and Font.BOLD+Font.ITALIC
@param predefinedSizes must contain one or more predefined font sizes which
will be available to the user as a convenience for populating the font
size text field; all values must be greater than 0.
*/
public FontSelectionPanel (
Font initialFont,
String[] styleDisplayNames,
int[] predefinedSizes
) {
super(new GridBagLayout());
this.setBorder(new EmptyBorder(12, 12, 11, 11));
GridBagConstraints gbc = new GridBagConstraints();
String[] availableFontFamilyNames =
GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames();
if (initialFont == null) { initialFont = new Font(
availableFontFamilyNames[0], Font.PLAIN, predefinedSizes[0]
);}
// Font family
fontFamilyList_ = new JList(availableFontFamilyNames);
fontFamilyList_.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
fontFamilyList_.setVisibleRowCount(8);
ListSelectionListener phraseCanvasUpdater = new ListSelectionListener () {
public void valueChanged (ListSelectionEvent e) {
if (!e.getValueIsAdjusting()) {
observable_.setChanged();
observable_.notifyObservers();
}
}
};
fontFamilyList_.addListSelectionListener(phraseCanvasUpdater);
gbc.fill = GridBagConstraints.BOTH;
gbc.gridheight = 2;
this.add(new JScrollPane(fontFamilyList_), gbc);
// Font style
fontStyleList_ = new FontStyleList(styleDisplayNames);
fontStyleList_.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
fontStyleList_.setVisibleRowCount(4);
fontStyleList_.addListSelectionListener(phraseCanvasUpdater);
gbc.gridx = 1;
gbc.insets = new Insets(0, 10, 0, 0);
// fontStyleList_ is put into a JScrollPane only because it puts a nice
// border around it which is consistent with the border around
// fontFamilyList_
this.add(new JScrollPane(fontStyleList_), gbc);
// Font size
fontSize_ = new JTextField();
fontSize_.setHorizontalAlignment(JTextField.RIGHT);
fontSize_.setColumns(4);
gbc.gridx = 2;
gbc.gridheight = 1;
gbc.fill = GridBagConstraints.HORIZONTAL;
this.add(fontSize_, gbc);
fontSizeList_ = new JList(
validateAndConvertPredefinedSizes(predefinedSizes)
);
fontSizeList_.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
// Will be able to see more than 1 row because gbc.fill set to BOTH
fontSizeList_.setVisibleRowCount(1);
fontSizeList_.setCellRenderer(new ListCellRenderer());
gbc.gridy = 1;
gbc.insets = new Insets(10, 10, 0, 0);
gbc.fill = GridBagConstraints.BOTH;
this.add(new JScrollPane(fontSizeList_), gbc);
// Phrase Canvas (displays current font selection)
phraseCanvas_ = new PhraseCanvas(
initialFont.getFamily(), initialFont, Color.black
);
addObserver(new Observer () {
public void update (Observable o, Object arg) {
try {
phraseCanvas_.setPhrase((String)fontFamilyList_.getSelectedValue());
phraseCanvas_.setFont(FontSelectionPanel.this.getSelectedFont());
}
catch (InvalidFontException e) {
phraseCanvas_.setPhrase("");
}
phraseCanvas_.invalidate();
phraseCanvas_.repaint();
}
});
phraseCanvas_.setSize(
(int)this.getPreferredSize().getWidth(), 100
);
gbc.gridy = 2;
gbc.gridx = 0;
gbc.gridwidth = 3;
gbc.insets = new Insets(10, 0, 0, 0);
gbc.fill = GridBagConstraints.HORIZONTAL;
// put into JScrollPane for formatting purposes (no scrolling ever occurs)
this.add(new JScrollPane(phraseCanvas_), gbc);
// Use FontSizeSynchronizer to ensure consistency between text field &
// list for font size
FontSizeSynchronizer fontSizeSynchronizer =
new FontSizeSynchronizer(fontSizeList_, fontSize_);
fontSizeList_.addListSelectionListener(fontSizeSynchronizer);
fontSize_.getDocument().addDocumentListener(fontSizeSynchronizer);
// Set initial widget values here at the end of the constructor to
// ensure that all listeners have been added beforehand
fontFamilyList_.setSelectedValue(initialFont.getFamily(), true);
fontStyleList_.setSelectedStyle(initialFont.getStyle());
fontSize_.setText(String.valueOf(initialFont.getSize()));
}
/** JList for font family */
protected JList fontFamilyList_;
/** FontStlyeList (subclass of JList) for font style */
protected FontStyleList fontStyleList_;
/** JTextField for font size */
protected JTextField fontSize_;
/** JList for font size */
protected JList fontSizeList_;
/** PhraseCanvas in which font samples are displayed */
protected PhraseCanvas phraseCanvas_;
/**
@exception IllegalArgumentException thrown if <ul>
<li>predefinedSizes does not contain one or more integer values
<li>predefinedSizes contains any integers with a value of less than 1
</ul>
*/
private Integer[] validateAndConvertPredefinedSizes (int[] predefinedSizes) {
if (predefinedSizes == null) { throw new IllegalArgumentException(
"int[] predefinedSizes may not be null"
);}
if (predefinedSizes.length < 1) { throw new IllegalArgumentException(
"int[] predefinedSizes must contain one or more values"
);}
Integer[] predefinedSizeIntegers = new Integer[predefinedSizes.length];
for (int i=0; i < predefinedSizes.length; i++) {
if (predefinedSizes[i] < 1) { throw new IllegalArgumentException(
"int[] predefinedSizes may not contain integers with value less than 1"
);}
predefinedSizeIntegers[i] = new Integer(predefinedSizes[i]);
}
return predefinedSizeIntegers;
}
/**
Adds an Observer to this FontSelectionPanel; the supplied Observer will
have its update() method called any time the Font currently specified
in the FontSelectionPanel changes. (The <tt>arg</tt> supplied to the
Observer will be <tt>null</tt>.)
@param o observer to be added
@see java.util.Observer
*/
public void addObserver (Observer o) { observable_.addObserver(o); }
/**
Removes an Observer from this FontSelectionPanel.
@param o Observer to be removed
@see java.util.Observer
*/
public void deleteObserver (Observer o) { observable_.deleteObserver(o); }
/** Observable used for registering/notifying Observers */
protected PublicChangeObservable observable_ = new PublicChangeObservable();
/**
Returns the currently selected font family
@return currently selected font family
@exception NoFontFamilySelectedException thrown if no font family is
currently selected
*/
public String getSelectedFontFamily () throws NoFontFamilySelectedException {
String fontFamily = (String)fontFamilyList_.getSelectedValue();
if (fontFamily == null) { throw new NoFontFamilySelectedException(
"No font family is currently selected"
);}
return fontFamily;
}
/**
Returns the currently selected font style.
@return currently selected font style. This value will correspond to one
of the font styles specified in {@link java.awt.Font}
@exception NoFontStyleSelectedException thrown if no font
style is currently selected
*/
public int getSelectedFontStyle () throws NoFontStyleSelectedException {
return fontStyleList_.getSelectedStyle();
}
/**
Returns the currently selected font size.
@return currently selected font size.
@exception NoFontSizeSpecifiedException thrown if no font size is
currently specified
@exception InvalidFontSizeException thrown if the font size
currently specified is invalid
*/
public int getSelectedFontSize ()
throws NoFontSizeSpecifiedException, InvalidFontSizeException {
String fontSize = fontSize_.getText();
if ((fontSize == null) || (fontSize.equals(""))) {
throw new NoFontSizeSpecifiedException("No font size specified");
}
if (fontSize.length() > maxNumCharsInFontSize_) {
throw new InvalidFontSizeException("Too many characters in font size");
}
try { return Integer.parseInt(fontSize); }
catch (NumberFormatException e) { throw new InvalidFontSizeException(
"The number specified in the font size text field (" + fontSize_.getText() +
") is not a valid integer."
);}
}
/**
Returns the currently selected font.
@return currently selected font.
@exception InvalidFontException thrown if no valid font is currently
specified; the actual class of the exception thrown may be
{@link FontSelectionPanel.InvalidFontException},
{@link FontSelectionPanel.NoFontFamilySelectedException},
{@link FontSelectionPanel.NoFontStyleSelectedException},
{@link FontSelectionPanel.NoFontSizeSpecifiedException},
or {@link FontSelectionPanel.InvalidFontSizeException}
*/
public Font getSelectedFont () throws InvalidFontException {
return new Font(
getSelectedFontFamily(),
getSelectedFontStyle(),
getSelectedFontSize()
);
}
/**
Changes the currently selected font by assigning all widget values to match
the family/style/size values of the supplied font
@param font font whose values should be used to set widgets
@exception IllegalArgumentException thrown if the family or style of the
font supplied are not available or invalid
*/
public void setSelectedFont (Font font) {
setSelectedFontFamily(font.getFamily());
setSelectedFontStyle(font.getStyle());
setSelectedFontSize(font.getSize());
}
/**
Sets the currently selected font family.
@param family family to which selection should change
@exception IllegalArgumentException thrown if the supplied font family is
not among the list of available font families
*/
public void setSelectedFontFamily (String family) {
ListModel familyListModel = fontFamilyList_.getModel();
for (int i=0; i < familyListModel.getSize(); i++) {
String s = familyListModel.getElementAt(i).toString();
if (s.equalsIgnoreCase(family)) {
fontFamilyList_.setSelectedIndex(i);
fontFamilyList_.ensureIndexIsVisible(i);
return;
}
}
throw new IllegalArgumentException(
"The font family supplied, '" + family + "', is not in the list of availalbe " +
"font families."
);
}
/**
Sets the currently selected font style.
@param style style to which selection should change
@exception IllegalArgumentException thrown if the supplied font style is
not one of Font.PLAIN, Font.BOLD, Font.ITALIC, or Font.BOLD+Font.ITALIC
*/
public void setSelectedFontStyle (int style) {
fontStyleList_.setSelectedStyle(style);
}
/**
Sets the currently selected font size.
@param size size to which selection should change
*/
public void setSelectedFontSize (int size) {
fontSize_.setText(String.valueOf(size));
}
/** Maximum number of characters permissibile in a valid font size */
protected int maxNumCharsInFontSize_ = 3;
/**
This class synchronizes font size value between the list containing
available font sizes & the text field in which font size is ultimately
specified.
*/
protected class FontSizeSynchronizer
implements DocumentListener, ListSelectionListener {
/**
@param list list containing predefined font sizes
@param textField text field in which font size is specified
*/
public FontSizeSynchronizer (JList list, JTextField textField) {
list_ = list;
textField_ = textField;
}
/** @see javax.swing.event.ListSelectionListener */
public void valueChanged (ListSelectionEvent e) {
if (updating_) { return; }
updating_ = true;
if (!e.getValueIsAdjusting()) {
Object selectedValue = ((JList)e.getSource()).getSelectedValue();
if (selectedValue != null) {
textField_.setText(selectedValue.toString());
}
observable_.setChanged();
observable_.notifyObservers();
}
updating_ = false;
}
/** @see javax.swing.event.DocumentListener */
public void changedUpdate (DocumentEvent e) { handle(e); }
/** @see javax.swing.event.DocumentListener */
public void insertUpdate (DocumentEvent e) { handle(e); }
/** @see javax.swing.event.DocumentListener */
public void removeUpdate (DocumentEvent e) { handle(e); }
/** Handles all DocumentEvents */
protected void handle (DocumentEvent e) {
if (updating_) { return; }
updating_ = true;
try {
Integer currentFontSizeInteger = Integer.valueOf(textField_.getText());
boolean currentSizeWasInList = false;
Object listMember;
for (int i=0; i < list_.getModel().getSize(); i++) {
listMember = list_.getModel().getElementAt(i);
if (listMember.equals(currentFontSizeInteger)) {
list_.setSelectedValue(currentFontSizeInteger, true);
currentSizeWasInList = true;
break;
}
}
if (!currentSizeWasInList) { list_.clearSelection(); }
}
catch (NumberFormatException nfe) { list_.clearSelection(); }
observable_.setChanged();
observable_.notifyObservers();
updating_ = false;
}
protected JList list_;
protected JTextField textField_;
protected boolean updating_;
}
//
// Static inner classes
//
/**
Represents a list of the four font styles: plain, bold, italic, and
bold italic
*/
protected static class FontStyleList extends JList {
/**
Construct a new FontStyleList, using the supplied values for style
display names
@param styleDisplayNames must contain exactly four members. The members
of this array represent the following styles, in order: Font.PLAIN,
Font.BOLD, Font.ITALIC, and Font.BOLD+Font.ITALIC
@exception IllegalArgumentException thrown if styleDisplayNames does not
contain exactly four String values
*/
public FontStyleList (String[] styleDisplayNames) {
super(validateStyleDisplayNames(styleDisplayNames));
}
private static String[] validateStyleDisplayNames (
String[] styleDisplayNames
) {
if (styleDisplayNames == null) { throw new IllegalArgumentException(
"String[] styleDisplayNames may not be null"
);}
if (styleDisplayNames.length != 4) { throw new IllegalArgumentException(
"String[] styleDisplayNames must have a length of 4"
);}
for (int i=0; i < styleDisplayNames.length; i++) {
if (styleDisplayNames[i] == null) { throw new IllegalArgumentException(
"No member of String[] styleDisplayNames may be null"
);}
}
return styleDisplayNames;
}
/**
@return currently selected font style
@exception NoFontStyleSelectedException thrown if no font style is
currently selected
*/
public int getSelectedStyle () throws NoFontStyleSelectedException {
switch (this.getSelectedIndex()) {
case 0: return Font.PLAIN; case 1: return Font.BOLD;
case 2: return Font.ITALIC; case 3: return Font.BOLD+Font.ITALIC;
default: throw new NoFontStyleSelectedException(
"No font style is currently selected"
);
}
}
/**
Change the currently selected style in this FontStyleList
@param style new selected style for this FontStyleList
@exception IllegalArgumentException thrown if style is not one of
Font.PLAIN, Font.BOLD, Font.ITALIC, or Font.BOLD+Font.ITALIC
*/
public void setSelectedStyle (int style) {
switch (style) {
case Font.PLAIN: this.setSelectedIndex(0); break;
case Font.BOLD: this.setSelectedIndex(1); break;
case Font.ITALIC: this.setSelectedIndex(2); break;
case Font.BOLD+Font.ITALIC: this.setSelectedIndex(3); break;
default: throw new IllegalArgumentException(
"int style must come from java.awt.Font"
);
}
}
}
/**
An implementation of {@link javax.swing.ListCellRenderer} which right
justifies all cells.
*/
protected static class ListCellRenderer extends DefaultListCellRenderer {
public Component getListCellRendererComponent (
JList list,
Object value,
int index,
boolean isSelected,
boolean cellHasFocus
) {
JLabel label = (JLabel)super.getListCellRendererComponent(
list, value, index, isSelected, cellHasFocus
);
label.setHorizontalAlignment(JLabel.RIGHT);
return label;
}
}
/**
Subclass of {@link java.util.Observable} which allows <tt>public</tt> access
to the setChanged() method.
*/
protected static class PublicChangeObservable extends Observable {
/** @see java.util.Observable#setChanged() */
public void setChanged () { super.setChanged(); }
}
/**
Component for displaying a "phrase" (a brief, one or two word String) using
a particular font & a particular color.
*/
public static class PhraseCanvas extends Canvas {
/**
Constructs a new PhraseCanvas with the supplied phrase, font, and color.
@param phrase phrase to be displayed in this PhraseCanvas
@param font Font to use when rendering the phrase
@param color Color to use when rendering the phrase
*/
public PhraseCanvas (String phrase, Font font, Color color) {
phrase_ = phrase;
font_ = font;
color_ = color;
}
/** @see java.awt.Canvas#paint(java.awt.Graphics) */
public void paint (Graphics g) {
// Workaround for bug in Font.createGlyphVector(), in review by
// Sun with review id 108400.
Font dummyFont = new Font(
font_.getFamily(), font_.getStyle(), font_.getSize()+1
);
dummyFont.createGlyphVector(
new FontRenderContext(null, antialiasOn_, false),
phrase_
);
GlyphVector glyphVector = font_.createGlyphVector(
new FontRenderContext(null, antialiasOn_, false),
phrase_
);
// Use precedent set by applications like MS Word to place
// glyph vector in the canvas:
// 1. If the total width of the glyph vector is less than the
// width of the canvas, the glyph vector will be horizontally centered
// in the canvas; else the glyph vector will be left-aligned
// 2. If the total height of the glyph vector is less than the height of
// the canvas, the glyph vector will be vertically centered in the
// canvas; else the glyph vector will be bottom-aligned
Rectangle2D logicalBounds = glyphVector.getLogicalBounds();
double x;
if (logicalBounds.getWidth() < this.getWidth()) {
x = (this.getWidth()/2) - (logicalBounds.getWidth()/2);
}
else { x = 0; }
double y;
if (logicalBounds.getHeight() < this.getHeight()) {
y = (this.getHeight()/2) + (logicalBounds.getHeight()/2);
}
else { y = this.getHeight(); }
g.setColor(color_);
Graphics2D g2d = (Graphics2D)g;
g2d.drawGlyphVector(glyphVector, (float)x, (float)y);
}
/** Returns the phrase to be rendered by this PhraseCanvas.
@return phrase to be rendered by this PhraseCanvas */
public String getPhrase () { return phrase_; }
/** Sets the phrase to be rendered by this PhraseCanvas.
@param phrase new phrase to be rendered by this PhraseCanvas;
this new value will be rendered the next time
{@link #paint(java.awt.Graphics)} is called */
public void setPhrase (String phrase) { phrase_ = phrase; }
protected String phrase_;
/** Returns the font to use when rendering the phrase.
@return font to use when rendering the phrase */
public Font getFont () { return font_; }
/** Sets the font to use when rendering the phrase.
@param font new font to use when rendering the phrase;
this new value will be used to render the phrase the next time
{@link #paint(java.awt.Graphics)} is called */
public void setFont (Font font) { font_ = font; }
protected Font font_;
/** Returns the color to use when rendering the phrase.
@return color to use when rendering the phrase */
public Color getColor () { return color_; }
/** Sets the color to use when rendering the phrase.
@param color new color to use when rendering the phrase;
this new value will be used to render the phrase the next time
{@link #paint(java.awt.Graphics)} is called */
public void setColor (Color color) { color_ = color; }
protected Color color_;
/** Returns true iff anti-aliasing is used when rendering the phrase.
@return whether or not anti-aliasing is used when
rendering the phrase */
public boolean isAntialiasOn () { return antialiasOn_; }
/** Turn anti-aliasing on or off.
@param antialiasOn whether or not to use anti-aliasing when
rendering the phrase this new value will be used to render the phrase
the next time {@link #paint(java.awt.Graphics)} is called */
public void setAntialiasOn (boolean antialiasOn) {
antialiasOn_ = antialiasOn;
}
protected boolean antialiasOn_;
}
/** Indicates that an invalid font is currently specified */
public static class InvalidFontException extends Exception {
public InvalidFontException (String msg) { super(msg); }
}
/** Indicates that no font family is currently selected */
public static class NoFontFamilySelectedException
extends InvalidFontException {
public NoFontFamilySelectedException (String msg) { super(msg); }
}
/** Indicates that no font style is currently selected */
public static class NoFontStyleSelectedException
extends InvalidFontException {
public NoFontStyleSelectedException (String msg) { super(msg); }
}
/** Indicates that no font size is currently specified */
public static class NoFontSizeSpecifiedException
extends InvalidFontException {
public NoFontSizeSpecifiedException (String msg) { super(msg); }
}
/** Indicates that an invalid font size is currently specified */
public static class InvalidFontSizeException extends InvalidFontException {
public InvalidFontSizeException (String msg) { super(msg); }
}
}
The table below shows all metrics for FontSelectionPanel.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 75.00 | Number of blocks | |
| BLOCK_COMMENT | 21.00 | Number of block comment lines | |
| COMMENTS | 336.00 | Comment lines | |
| COMMENT_DENSITY | 1.02 | Comment density | |
| COMPARISONS | 28.00 | Number of comparison operators | |
| CYCLOMATIC | 81.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 60.00 | Comments in declarations | |
| DOC_COMMENT | 283.00 | Number of javadoc comment lines | |
| ELOC | 328.00 | Effective lines of code | |
| EXEC_COMMENTS | 12.00 | Comments in executable code | |
| EXITS | 69.00 | Procedure exits | |
| FUNCTIONS | 43.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 0.56 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 108.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 0.00 | JAVA0002 Package name does not begin with a top level domain name or country code | |
| JAVA0003 | 0.00 | JAVA0003 Minimize use of on-demand (.*) imports | |
| JAVA0004 | 0.00 | JAVA0004 Unnecessary import from java.lang | |
| JAVA0005 | 0.00 | JAVA0005 Imports not in specified order | |
| JAVA0006 | 0.00 | JAVA0006 Empty finally block | |
| JAVA0007 | 0.00 | JAVA0007 Should not declare public field | |
| JAVA0008 | 0.00 | JAVA0008 Empty catch block | |
| JAVA0009 | 0.00 | JAVA0009 Protected member in final class | |
| JAVA0010 | 0.00 | JAVA0010 Non-instantiable class does not contain a non-private static member | |
| JAVA0011 | 0.00 | JAVA0011 Abstract class does not contain an abstract method | |
| JAVA0012 | 0.00 | JAVA0012 Non-constructor method with same name as declaring class | |
| JAVA0013 | 0.00 | JAVA0013 Non-blank final field is not static | |
| JAVA0014 | 0.00 | JAVA0014 Class with only static members has non-private constructor | |
| JAVA0015 | 0.00 | JAVA0015 Package class contains public nested type | |
| JAVA0016 | 0.00 | JAVA0016 Abstract class contains non-protected constructor | |
| JAVA0017 | 0.00 | JAVA0017 Class name does not have required form | |
| JAVA0018 | 0.00 | JAVA0018 Method name does not have required form | |
| JAVA0019 | 0.00 | JAVA0019 Interface name does not have required form | |
| JAVA0020 | 0.00 | JAVA0020 Field name does not have required form | |
| JAVA0021 | 0.00 | JAVA0021 Interface method name does not have required form | |
| JAVA0022 | 0.00 | JAVA0022 Static final field name does not have required form | |
| JAVA0023 | 0.00 | JAVA0023 Empty finalize method | |
| JAVA0024 | 0.00 | JAVA0024 Empty class | |
| JAVA0025 | 0.00 | JAVA0025 Method override is empty | |
| JAVA0026 | 0.00 | JAVA0026 Finalize method with parameters | |
| JAVA0029 | 0.00 | JAVA0029 Private method not used | |
| JAVA0030 | 0.00 | JAVA0030 Private field not used | |
| JAVA0031 | 0.00 | JAVA0031 Case statement not properly closed | |
| JAVA0032 | 0.00 | JAVA0032 Switch statement missing default | |
| JAVA0033 | 0.00 | JAVA0033 default: not last case in switch statement | |
| JAVA0034 | 0.00 | JAVA0034 Missing braces in if statement | |
| JAVA0035 | 0.00 | JAVA0035 Missing braces in for statement | |
| JAVA0036 | 0.00 | JAVA0036 Missing braces in while statement | |
| JAVA0038 | 0.00 | JAVA0038 Non-case label in switch statement | |
| JAVA0039 | 0.00 | JAVA0039 Break statement with label | |
| JAVA0040 | 0.00 | JAVA0040 Switch statement contains N cases (maximum: M) | |
| JAVA0041 | 0.00 | JAVA0041 Nested synchronized block | |
| JAVA0042 | 0.00 | JAVA0042 Empty synchronized statement | |
| JAVA0043 | 0.00 | JAVA0043 Inner class does not use outer class | |
| JAVA0044 | 0.00 | JAVA0044 Serializable class with no instance variables | |
| JAVA0045 | 0.00 | JAVA0045 Serializable class with only transient fields | |
| JAVA0046 | 0.00 | JAVA0046 Name of class not derived from Exception ends with 'Exception' | |
| JAVA0047 | 0.00 | JAVA0047 Serializable class derives from invalid base class | |
| JAVA0048 | 0.00 | JAVA0048 Name of class derived from Exception does not end with 'Exception' | |
| JAVA0049 | 0.00 | JAVA0049 Nested block at depth N (maximum: M) | |
| JAVA0050 | 0.00 | JAVA0050 Class derives from java.lang.Error | |
| JAVA0051 | 0.00 | JAVA0051 Class derives from java.lang.RuntimeException | |
| JAVA0052 | 0.00 | JAVA0052 Class derives from java.lang.Throwable | |
| JAVA0053 | 0.00 | JAVA0053 Unused label | |
| JAVA0054 | 0.00 | JAVA0054 Inheritance depth N exceeds maximum M | |
| JAVA0055 | 0.00 | JAVA0055 Class should be interface | |
| JAVA0056 | 0.00 | JAVA0056 Unnecessary abstract modifier for interface or annotation | |
| JAVA0057 | 0.00 | JAVA0057 Unnecessary default constructor | |
| JAVA0058 | 0.00 | JAVA0058 Constructor calls super() | |
| JAVA0059 | 1.00 | JAVA0059 Method override only calls super() | |
| JAVA0061 | 0.00 | JAVA0061 Inaccessible member in anonymous class | |
| JAVA0062 | 0.00 | JAVA0062 Public class missing public member or protected constructor | |
| JAVA0063 | 0.00 | JAVA0063 Identifier name should not contain '$' | |
| JAVA0064 | 0.00 | JAVA0064 N variations of identifier name (maximum: M) | |
| JAVA0065 | 0.00 | JAVA0065 Unnecessary final modifier for method in final class | |
| JAVA0066 | 0.00 | JAVA0066 Unnecessary modifier for interface nested type | |
| JAVA0067 | 0.00 | JAVA0067 Array descriptor on identifier name | |
| JAVA0068 | 0.00 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0071 | 0.00 | JAVA0071 Strings compared with == | |
| JAVA0073 | 2.00 | JAVA0073 Integer division in floating-point context | |
| JAVA0074 | 0.00 | JAVA0074 Use of Object.notify() | |
| JAVA0075 | 0.00 | JAVA0075 Method parameter hides field | |
| JAVA0076 | 15.00 | JAVA0076 Use of magic number | |
| JAVA0077 | 0.00 | JAVA0077 Private field not used in declaring class | |
| JAVA0078 | 0.00 | JAVA0078 Floating point values compared with == | |
| JAVA0079 | 0.00 | JAVA0079 Use of instance to reference static member | |
| JAVA0080 | 0.00 | JAVA0080 Import declaration not used | |
| JAVA0081 | 0.00 | JAVA0081 Boolean literal in comparison | |
| JAVA0082 | 0.00 | JAVA0082 Unnecessary widening cast | |
| JAVA0083 | 0.00 | JAVA0083 Unnecessary instanceof test | |
| JAVA0084 | 0.00 | JAVA0084 Should use compound assignment operator | |
| JAVA0085 | 0.00 | JAVA0085 Use of sun.* class | |
| JAVA0087 | 0.00 | JAVA0087 Use of Thread.sleep() | |
| JAVA0089 | 0.00 | JAVA0089 Use of restricted package | |
| JAVA0092 | 0.00 | JAVA0092 Use of restricted type | |
| JAVA0093 | 0.00 | JAVA0093 Redundant assignment | |
| JAVA0094 | 0.00 | JAVA0094 Field hides a superclass field | |
| JAVA0095 | 0.00 | JAVA0095 Uninitialized private field | |
| JAVA0096 | 0.00 | JAVA0096 Field in nested class hides outer field | |
| JAVA0098 | 2.00 | JAVA0098 Minimize use of implicit field initializers | |
| JAVA0100 | 0.00 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0101 | 0.00 | JAVA0101 Unnecessary modifier for field in interface | |
| JAVA0102 | 0.00 | JAVA0102 Last statement in finalize() not super.finalize() | |
| JAVA0103 | 0.00 | JAVA0103 Explicit call to finalize() | |
| JAVA0104 | 0.00 | JAVA0104 finalize() only calls super.finalize() | |
| JAVA0105 | 0.00 | JAVA0105 Duplicate import declaration | |
| JAVA0106 | 0.00 | JAVA0106 Unnecessary import from current package | |
| JAVA0108 | 2.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 1.00 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0111 | 0.00 | JAVA0111 Incorrect javadoc: @return tag for void method | |
| JAVA0112 | 0.00 | JAVA0112 Incorrect javadoc: no exception 'exception' in throws | |
| JAVA0113 | 10.00 | JAVA0113 Incorrect javadoc: no @author tag | |
| JAVA0114 | 10.00 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0115 | 0.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 5.00 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0118 | 0.00 | JAVA0118 Missing javadoc: type 'type' | |
| JAVA0119 | 0.00 | JAVA0119 Control variable changed within body of for loop | |
| JAVA0123 | 0.00 | JAVA0123 Use all three components of for loop | |
| JAVA0125 | 0.00 | JAVA0125 Continue statement with label | |
| JAVA0126 | 0.00 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0128 | 2.00 | JAVA0128 Public constructor in non-public class | |
| JAVA0130 | 1.00 | JAVA0130 Non-static method does not use instance fields | |
| JAVA0131 | 0.00 | JAVA0131 Compatible method does not override base | |
| JAVA0132 | 0.00 | JAVA0132 Method overload with compatible signature | |
| JAVA0133 | 1.00 | JAVA0133 Non-synchronized method overrides synchronized method | |
| JAVA0135 | 0.00 | JAVA0135 Only one of Object.equals and Object.hashCode defined: missing 'method' | |
| JAVA0136 | 0.00 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0137 | 0.00 | JAVA0137 Non-abstract class missing constructor | |
| JAVA0138 | 0.00 | JAVA0138 N parameters defined for method (maximum: M) | |
| JAVA0139 | 0.00 | JAVA0139 Definition of main other than public static void main(java.lang.String[]) | |
| JAVA0141 | 0.00 | JAVA0141 Unnecessary modifier for method in interface | |
| JAVA0143 | 0.00 | JAVA0143 Synchronized method | |
| JAVA0144 | 0.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 6.00 | JAVA0145 Tab character used in source file | |
| JAVA0150 | 0.00 | JAVA0150 java.lang.Error (or subclass) thrown | |
| JAVA0153 | 0.00 | JAVA0153 Inefficient conversion of integer to string | |
| JAVA0159 | 0.00 | JAVA0159 Inefficient conversion of string to integer | |
| JAVA0160 | 0.00 | JAVA0160 Method does not throw specified exception | |
| JAVA0161 | 0.00 | JAVA0161 Conditional wait() not in loop | |
| JAVA0163 | 0.00 | JAVA0163 Empty statement | |
| JAVA0165 | 0.00 | JAVA0165 Conflicting return statement in finally block | |
| JAVA0166 | 0.00 | JAVA0166 Generic exception caught | |
| JAVA0167 | 0.00 | JAVA0167 ThreadDeath not rethrown | |
| JAVA0169 | 0.00 | JAVA0169 Unnecessary catch block: exception 'exception' | |
| JAVA0170 | 0.00 | JAVA0170 Caught exception not derived from java.lang.Exception | |
| JAVA0171 | 0.00 | JAVA0171 Unused local variable | |
| JAVA0173 | 1.00 | JAVA0173 Unused method parameter | |
| JAVA0174 | 0.00 | JAVA0174 Assigned local variable never used | |
| JAVA0175 | 0.00 | JAVA0175 Successive assignment to variable | |
| JAVA0176 | 0.00 | JAVA0176 Local variable name does not have required form | |
| JAVA0177 | 3.00 | JAVA0177 Variable declaration missing initializer | |
| JAVA0179 | 0.00 | JAVA0179 Local variable hides visible field | |
| JAVA0233 | 0.00 | JAVA0233 Definition of serialVersionUID other than 'private static final long serialVersionUID' | |
| JAVA0234 | 9.00 | JAVA0234 Class is Serializable but does not define serialVersionUID | |
| JAVA0235 | 0.00 | JAVA0235 Class defines serialVersionUID but does not implement Serializable | |
| JAVA0236 | 0.00 | JAVA0236 Attempt to clone an object which does not implement Cloneable | |
| JAVA0237 | 0.00 | JAVA0237 Class implements Cloneable but does not have public clone method | |
| JAVA0238 | 0.00 | JAVA0238 Clone method does not call super.clone() | |
| JAVA0239 | 0.00 | JAVA0239 Class declares 'readObject' or 'writeObject' but does not implement Serializable | |
| JAVA0240 | 0.00 | JAVA0240 Serializable class which declares readObject or writeObject but not both | |
| JAVA0241 | 0.00 | JAVA0241 'readObject' or 'writeObject' should be declared private in Serializable class | |
| JAVA0242 | 0.00 | JAVA0242 Transient field in non-Serializable class | |
| JAVA0243 | 0.00 | JAVA0243 'readResolve' or 'writeReplace' should be declared private or protected | |
| JAVA0244 | 0.00 | JAVA0244 Field or method name in subclass differs only by case from inherited field or method | |
| JAVA0245 | 0.00 | JAVA0245 JUnit TestCase with non-trivial constructor | |
| JAVA0246 | 0.00 | JAVA0246 JUnit assertXXX statement missing message parameter | |
| JAVA0247 | 0.00 | JAVA0247 JUnit 'setUp()' and 'tearDown()' should call super method | |
| JAVA0248 | 0.00 | JAVA0248 JUnit method 'setUp' or 'tearDown' with incorrect signature | |
| JAVA0249 | 0.00 | JAVA0249 JUnit TestCase 'suite()' should be declared static | |
| JAVA0250 | 0.00 | JAVA0250 JUnit TestCase declares testXXX method with incorrect signature | |
| JAVA0251 | 0.00 | JAVA0251 Use '%n' for line breaks in printf/format for platform independence | |
| JAVA0252 | 0.00 | JAVA0252 'enum' is a Java 1.5 reserved word | |
| JAVA0253 | 0.00 | JAVA0253 Not all enum constants consumed in switch statement | |
| JAVA0254 | 0.00 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| JAVA0255 | 0.00 | JAVA0255 Result of method invocation not used | |
| JAVA0256 | 0.00 | JAVA0256 Assignment of external collection/array to field | |
| JAVA0257 | 0.00 | JAVA0257 Use of 'Constant Interface' anti-pattern | |
| JAVA0258 | 0.00 | JAVA0258 Implement Iterable for foreach compatibility | |
| JAVA0259 | 0.00 | JAVA0259 Return of collection/array field | |
| JAVA0260 | 0.00 | JAVA0260 Use 'enum' instead of Enumerated Type pattern | |
| JAVA0261 | 0.00 | JAVA0261 Use specialized Enum collection types | |
| JAVA0262 | 0.00 | JAVA0262 Use of char in integer context | |
| JAVA0263 | 0.00 | JAVA0263 Long literal ends with 'l' instead of 'L' | |
| JAVA0264 | 0.00 | JAVA0264 Integer math in long context - check for overflow | |
| JAVA0265 | 0.00 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0266 | 0.00 | JAVA0266 Use of System.out | |
| JAVA0267 | 0.00 | JAVA0267 Use of System.err | |
| JAVA0269 | 0.00 | JAVA0269 Contents of StringBuffer never used | |
| JAVA0270 | 1.00 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0271 | 0.00 | JAVA0271 Minimize use of on-demand (.*) static imports | |
| JAVA0272 | 0.00 | JAVA0272 Thread.run() called | |
| JAVA0273 | 0.00 | JAVA0273 Non-final derivative of Thread calls start() in constructor | |
| JAVA0274 | 0.00 | JAVA0274 Serializable class has a synchronized readObject() | |
| JAVA0275 | 0.00 | JAVA0275 Serializable class has a synchronized writeObject() and no other synchronized methods | |
| JAVA0276 | 0.00 | JAVA0276 Unnecessary use of String constructor | |
| JAVA0277 | 0.00 | JAVA0277 Iterator.next() implementation does not throw NoSuchElementException | |
| JAVA0278 | 0.00 | JAVA0278 Unnecessary use of Boolean constructor | |
| JAVA0279 | 0.00 | JAVA0279 Serialization method readObject or readObjectNoData calls an overridable method | |
| JAVA0280 | 0.00 | JAVA0280 IllegalMonitorStateException caught | |
| JAVA0281 | 0.00 | JAVA0281 Iterator.next() not called in loop | |
| JAVA0282 | 0.00 | JAVA0282 Call to Iterator.next() in loop which does not test Iterator.hasNext() | |
| JAVA0283 | 0.00 | JAVA0283 Control variable not updated in loop body | |
| JAVA0284 | 0.00 | JAVA0284 Explicit garbage collection | |
| JAVA0285 | 0.00 | JAVA0285 Dereference of potentially null variable | |
| JAVA0286 | 0.00 | JAVA0286 Dereference of null variable | |
| JAVA0287 | 0.00 | JAVA0287 Unnecessary null check | |
| JAVA0288 | 0.00 | JAVA0288 Inconsistent null check | |
| JAVA0289 | 1.00 | null | |
| LINES | 763.00 | Number of lines in the source file | |
| LINE_COMMENT | 32.00 | Number of line comments | |
| LOC | 382.00 | Lines of code | |
| LOGICAL_LINES | 217.00 | Number of statements | |
| LOOPS | 4.00 | Number of loops | |
| NEST_DEPTH | 4.00 | Maximum nesting depth | |
| OPERANDS | 863.00 | Number of operands | |
| OPERATORS | 1694.00 | Number of operators | |
| PARAMS | 42.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 2557.00 | Halstead program length | |
| PROGRAM_VOCAB | 340.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 66.00 | Number of return points from functions | |
| SIZE | 28773.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 287.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 53.00 | Number of unique operators | |
| WHITESPACE | 45.00 | Number of whitespace lines | |