/*
* @(#)FontSelection.java 1.2 98/07/31
*/
import java.lang.Integer;
import java.awt.*;
import java.awt.font.*;
import java.awt.geom.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.Vector;
/*
* This applet displays a String with the user's selected
* fontname, style and size attributes.
*/
public class FontSelection extends JApplet implements ItemListener {
JLabel fontLabel, sizeLabel, styleLabel;
FontPanel fontC;
JComboBox fonts, sizes, styles;
int index = 0;
String fontchoice = "fontchoice";
int stChoice = 0;
String siChoice = "10";
public void init() {
getContentPane().setLayout( new BorderLayout() );
JPanel topPanel = new JPanel();
JPanel fontPanel = new JPanel();
JPanel sizePanel = new JPanel();
JPanel stylePanel = new JPanel();
JPanel sizeAndStylePanel = new JPanel();
topPanel.setLayout( new BorderLayout() );
fontPanel.setLayout( new GridLayout( 2, 1 ) );
sizePanel.setLayout( new GridLayout( 2, 1 ) );
stylePanel.setLayout( new GridLayout( 2, 1 ) );
sizeAndStylePanel.setLayout( new BorderLayout() );
topPanel.add( BorderLayout.WEST, fontPanel );
sizeAndStylePanel.add( BorderLayout.WEST, sizePanel );
sizeAndStylePanel.add( BorderLayout.CENTER, stylePanel );
topPanel.add( BorderLayout.CENTER, sizeAndStylePanel );
getContentPane().add( BorderLayout.NORTH, topPanel );
fontLabel = new JLabel();
fontLabel.setText("Fonts");
Font newFont = getFont().deriveFont(1);
fontLabel.setFont(newFont);
fontLabel.setHorizontalAlignment(JLabel.CENTER);
fontPanel.add(fontLabel);
sizeLabel = new JLabel();
sizeLabel.setText("Sizes");
sizeLabel.setFont(newFont);
sizeLabel.setHorizontalAlignment(JLabel.CENTER);
sizePanel.add(sizeLabel);
styleLabel = new JLabel();
styleLabel.setText("Styles");
styleLabel.setFont(newFont);
styleLabel.setHorizontalAlignment(JLabel.CENTER);
stylePanel.add(styleLabel);
GraphicsEnvironment gEnv = GraphicsEnvironment.getLocalGraphicsEnvironment();
String envfonts[] = gEnv.getAvailableFontFamilyNames();
Vector vector = new Vector();
for ( int i = 1; i < envfonts.length; i++ ) {
vector.addElement(envfonts[i]);
}
fonts = new JComboBox( vector );
fonts.setMaximumRowCount( 9 );
fonts.addItemListener(this);
fontchoice = envfonts[0];
fontPanel.add(fonts);
sizes = new JComboBox( new Object[]{ "10", "12", "14", "16", "18"} );
sizes.setMaximumRowCount( 9 );
sizes.addItemListener(this);
sizePanel.add(sizes);
styles = new JComboBox( new Object[]{
"PLAIN",
"BOLD",
"ITALIC",
"BOLD & ITALIC"} );
styles.setMaximumRowCount( 9 );
styles.addItemListener(this);
sizes.setMaximumRowCount( 9 );
stylePanel.add(styles);
fontC = new FontPanel();
fontC.setBackground(Color.white);
getContentPane().add( BorderLayout.CENTER, fontC);
}
/*
* Detects a state change in any of the Lists. Resets the variable corresponding
* to the selected item in a particular List. Invokes changeFont with the currently
* selected fontname, style and size attributes.
*/
public void itemStateChanged(ItemEvent e) {
if ( e.getStateChange() != ItemEvent.SELECTED ) {
return;
}
Object list = e.getSource();
if ( list == fonts ) {
fontchoice = (String)fonts.getSelectedItem();
} else if ( list == styles ) {
index = styles.getSelectedIndex();
stChoice = index;
} else {
siChoice = (String)sizes.getSelectedItem();
}
fontC.changeFont(fontchoice, stChoice, siChoice);
}
public static void main(String s[]) {
JFrame f = new JFrame("FontSelection");
f.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {System.exit(0);}
});
JApplet fontSelection = new FontSelection();
f.getContentPane().add(fontSelection, BorderLayout.CENTER);
fontSelection.init();
f.setSize(new Dimension(550,250));
f.setVisible(true);
}
}
class FontPanel extends JPanel {
Font thisFont;
public FontPanel(){
thisFont = new Font("Arial", Font.PLAIN, 10);
}
// Resets thisFont to the currently selected fontname, size and style attributes.
public void changeFont(String f, int st, String si){
Integer newSize = new Integer(si);
int size = newSize.intValue();
thisFont = new Font(f, st, size);
repaint();
}
public void paintComponent (Graphics g) {
super.paintComponent( g );
Graphics2D g2 = (Graphics2D) g;
int w = getWidth();
int h = getHeight();
g2.setColor(Color.darkGray);
g2.setFont(thisFont);
String change = "Pick a font, size, and style to change me";
FontMetrics metrics = g2.getFontMetrics();
int width = metrics.stringWidth( change );
int height = metrics.getHeight();
g2.drawString( change, w/2-width/2, h/2-height/2 );
}
}
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