/*
* XNap
*
* A pure java file sharing client.
*
* See 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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
*
*/
package xnap.gui;
// 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
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); }
}
}