asked on

Problems with setting the font and size for my Project. ActionEvent

hey
i have a problem with my java program. The problem is that the font and font size wont change when i try changing them it gives me an error could anyone please help me????

pageTA.setFont(new Font(fontType,fontStyle, fontSize));
not sure how to use this in my actionEvent

here is my program:

//Description: a very simple text editor program using
//menus to allow the user to manipulate text.
//Author:Roman Kaminski Date: Dec 2 /2003

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.JOptionPane;
import java.io.*;
import java.awt.Toolkit;

public class Project3 extends JFrame implements ActionListener
{
private JMenuBar menuMB = new JMenuBar();
private JMenu fileM, editM, helpM;
private JMenuItem openI, saveI, exitI;
private JMenuItem cutI, copyI, pasteI, selectI;
private JMenuItem aboutI;
private JTextArea pageTA = new JTextArea();
private String scratchpad = "";
private JPanel font;
private JLabel fSize, fStyle, blank1, blank2, blank3, blank4, blank5, blank6, blank7, blank8, blank9, blank10, blank11, blank12, blank13;
private Font fonta;

//constructor method
public Project3()
{
this.setTitle("Text Editor");
Toolkit theKit = this.getToolkit();
Dimension wndSize = theKit.getScreenSize();
this.setBounds(wndSize.width/4, wndSize.height/4,
wndSize.width/2, wndSize.height/2);
setFileMenu();
setEditMenu();
setHelpMenu();
this.setJMenuBar(menuMB);
setDefaultCloseOperation(EXIT_ON_CLOSE);
fonta = new Font("Arial Black",Font.PLAIN, 10);

Container pane = this.getContentPane();
pane.setLayout(new GridLayout(2,1));

pageTA.setSize(590, 390);
pane.add(pageTA);
pane.add(new JScrollPane(pageTA));
pageTA.setLineWrap(true);
pageTA.setFont(fonta);
pageTA.setBackground(new Color(190,203,255));

//create panel for font changes
font = new JPanel();
font.setLayout(new GridLayout(2,2));
// font.setLayout(new FlowLayout);
fSize = new JLabel("Size");
blank1 = new JLabel("");
blank2 = new JLabel("");
blank3 = new JLabel("");
blank4 = new JLabel("");
// font.add(blank1);
// font.add(blank2);
// font.add(blank3);
// font.add(blank4);
font.add(fSize);
font.setBackground(new Color(190,203,255));

//create JComboBox for font sizes
String[] fontSizes = {"8","9","10", "12", "14", "16", "18", "20", "22", "24", "26", "28","36","48","72"};
JComboBox fontChange = new JComboBox(fontSizes);
fontChange.addActionListener(this);
font.add(fontChange);
fontChange.setBackground(new Color(190,203,255));

blank9 = new JLabel("");
blank10 = new JLabel("");
blank11 = new JLabel("");
blank12 = new JLabel("");
blank13 = new JLabel("");
// font.add(blank9);
// font.add(blank10);
// font.add(blank11);
// font.add(blank12);
// font.add(blank13);

fStyle = new JLabel("Style");
blank5 = new JLabel("");
blank6 = new JLabel("");
blank7 = new JLabel("");
blank8 = new JLabel("");
// font.add(blank5);
// font.add(blank6);
// font.add(blank7);
// font.add(blank8);

font.add(fStyle);

//create JComboBox for font styles
String[] fontStyles = {"Times New Roman", "Arial", "Comic Sans MS"};
JComboBox fontStyleChange = new JComboBox(fontStyles);
font.add(fontStyleChange);
fontStyleChange.addActionListener(this);
fontStyleChange.setBackground(new Color(190,203,255));

pane.add(font);

this.show();
}//end constructor

//some other methods used in the program
//this is a menu to add items to the File menu
private void setFileMenu()
{
fileM = new JMenu ("File");
fileM.setMnemonic('F');
menuMB.add(fileM);

openI = new JMenuItem("Open");
fileM.add(openI);
openI.setAccelerator(KeyStroke.getKeyStroke('O', Event.CTRL_MASK));

saveI = new JMenuItem("Save");
fileM.add(saveI);
saveI.setAccelerator(KeyStroke.getKeyStroke('S', Event.CTRL_MASK));

exitI = new JMenuItem("Exit");
fileM.add(exitI);
exitI.setAccelerator(KeyStroke.getKeyStroke('E', Event.CTRL_MASK));

//register a listeners for menu items
openI.addActionListener(this);
saveI.addActionListener(this);
exitI.addActionListener(this);

}//end setFileMenu

private void setEditMenu()
{
editM = new JMenu("Edit");
menuMB.add(editM);
editM.setMnemonic('E');

cutI = new JMenuItem("Cut");
editM.add(cutI);
cutI.setAccelerator(KeyStroke.getKeyStroke('D', Event.CTRL_MASK));

copyI = new JMenuItem("Copy");
editM.add(copyI);
copyI.setAccelerator(KeyStroke.getKeyStroke('C', Event.CTRL_MASK));

pasteI = new JMenuItem("Paste");
editM.add(pasteI);
pasteI.setAccelerator(KeyStroke.getKeyStroke('P', Event.CTRL_MASK));

selectI = new JMenuItem("Select All");
editM.add(selectI);
selectI.setAccelerator(KeyStroke.getKeyStroke('L', Event.CTRL_MASK));

cutI.addActionListener(this);
copyI.addActionListener(this);
pasteI.addActionListener(this);
selectI.addActionListener(this);
}//end setEditMenu

public void setHelpMenu()
{
helpM = new JMenu("Help");
menuMB.add(helpM);
helpM.setMnemonic('H');

aboutI= new JMenuItem("Text Editor");
helpM.add(aboutI);
aboutI.setAccelerator(KeyStroke.getKeyStroke('A', Event.CTRL_MASK));
aboutI.addActionListener(this);
}//end setHelpMenu

public class OpenFile
{
public OpenFile()
{
//place code in a try block to handle exceptions
JFileChooser chooser = new JFileChooser();
int temp = chooser.showOpenDialog(null);
File file = chooser.getSelectedFile();
BufferedReader br = null;
String one = "";
String two = "";
if(file!=null)
{
try
{
br = new BufferedReader(new FileReader(file));
}//end try

catch(Exception a)
{
}
pageTA.setText("");
try
{
while ((two = br.readLine()) != null)
{
try
{
pageTA.append(two);
}//ent try
catch(Exception d)
{
break;
}//end catch
}//end while
br.close();
}//end tty

catch(IOException b)
{
try
{
br.close();
}
catch(IOException c)
{

}//end catch
}//end catch
}//end if
}//end constructor
}//end inner class

public class SaveFile
{
PrintWriter pw = null;
JFileChooser chooser = new JFileChooser();
int temp = chooser.showSaveDialog(null);
File fileOne = chooser.getSelectedFile();

public SaveFile()
{
try
{
pw = new PrintWriter(new FileOutputStream(fileOne), true);
pw.write(pageTA.getText());
}//end try
catch (FileNotFoundException ex)
{
System.out.println("Catch message is: " + ex.getMessage());
}//emd catch
pw.close();

}//end constructor

}//end inner class

public void actionPerformed(ActionEvent e)
{
JMenuItem mItem = (JMenuItem)e.getSource();

if(mItem == exitI)
{
System.exit(0);
}
else if (mItem == openI)
{
OpenFile open = new OpenFile();
}
else if (mItem == saveI)
{
SaveFile save = new SaveFile();
}
else if (mItem == cutI)
{
scratchpad = pageTA.getSelectedText();
pageTA.replaceRange("",pageTA.getSelectionStart(),
pageTA.getSelectionEnd());
}
else if (mItem == copyI)
{
scratchpad = pageTA.getSelectedText();
}

else if (mItem == pasteI)
{
pageTA.insert(scratchpad, pageTA.getCaretPosition());
}

else if (mItem == selectI)
{
pageTA.selectAll();
}
else if (mItem == aboutI)
{
JOptionPane.showMessageDialog(null,"Roman Kaminski");
}
else
{
JComboBox tempcb = (JComboBox)e.getSource();
int fontS = Integer.parseInt(tempcb.getSelectedItem().toString());
}
}//end actionPerformed

public static void main(String[]args)
{
Project3 app1 = new Project3();
}//end main

}//end class

CEHJ

You have two immediate problems:

You don't check the type in your ActionListener(it may not be a menu item)
You get the font size incorrectly

CEHJ

Your combo boxes should have instance scope and should be interrogated in your action listener. A new font should be created based on the values of these boxes and set if not equal to the current one.

Roman_Kaminski

ASKER

i dont understand what to do could u show me in that part of the code

Roman_Kaminski

ASKER

No One IS Geting Points cause no one helped me fix this. but i will give out points to who ever answers this question:

who won the war between germania and ugoslovic in 1376???

zzynx

ugoslovic

ASKER CERTIFIED SOLUTION

CEHJ

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

Roman_Kaminski

ASKER

there was no war between germania and uglaslavic??? lol

thank you CEHJ i gave the points to u

CEHJ

:-)