Dave Johnson

Turning app from JFrame to JPanel

Got this app that is clock. I want to put the clock into my program as part of the exsisting layout. The clock is currently a JFrame I want to the clock as a JPanel instead.
Here is the code:

import java.awt.*;
import javax.swing.*;
import java.util.*;
class Clock extends JFrame implements Runnable
{
Thread runner;
Font clockFont;
public Clock()
{
super("Java Clock");
setSize(230,100);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
clockFont=new Font("Serif",Font.BOLD,25);
Container contentArea=getContentPane();
ClockPanel cp=new ClockPanel();
contentArea.add(cp);
setContentPane(contentArea);
start();
}
class ClockPanel extends JPanel
{
public void paintComponent(Graphics painter)
{
painter.setColor(Color.white);
painter.fillRect(0,0,300,100);
painter.setFont(clockFont);
painter.setColor(Color.black);
painter.drawString(timeNow(),60,40);
}
}
public String timeNow()
{
Calendar now=Calendar.getInstance();
int hrs=now.get(Calendar.HOUR_OF_DAY);
int min=now.get(Calendar.MINUTE);
int sec=now.get(Calendar.SECOND);
String time=zero(hrs)+":"+zero(min)+":"+zero(sec);
return time;
}
public String zero(int num)
{
String number=(num<10)?("0"+num) :( ""+num);
return number;
}
public void start()
{
if(runner==null)
{
runner=new Thread(this);
}
runner.start();
}
public void run()
{
while(runner==Thread.currentThread())
{
repaint();
try
{
Thread.sleep(1000);
}
catch(InterruptedException e)
{
}
}
}
public static void main(String arg[])
{
Clock c=new Clock();
}
}

Could anyone show me what alterations are necessary to the code? Also what code is needed to add it to the JFrame on the main program i.e. will I need to setSize() or anything?
Thanks, Dave.
[ January 07, 2004: Message edited by: Dave Johnson ]

21 years ago

Application/Applet the plays audio files.

Hi everyone, I am playing around with sound files (wav) in my code. I have managed to get audio files to work in an Applet but not an Application yet.
Could you please be so kind as to show a small application that plays an audio file.
Ideally I will write it as applet/app later. But for now could help get me started please.
Thanks, Dave.

21 years ago

GUI almost there. Please help!

Thankyou Ernest, I had not heard of that method() before.
I'll have to read up on it.
Thanks for sorting this out. As to be honest I have sorted lots of the problems on my own, but that one had me stumped.
I love this place.
Thanks again, Dave.

21 years ago

GUI almost there. Please help!

Hi I am experimenting with my code, learning quite a bit about Layout managers, one way or another.
I have a BorderLayout for my main manager. This puts a JToolBar in the north zone. A Gridlayout JPanel in the west zone. A GridLayout JPanel in the center zone. A GridBagLayout JPanel in the east zone. A FlowLayout JPanel in the south zone.
When the program compiles and runs, it looks fine, room for improvement but okay for now. The problem is that there is a cancel JButton on the JPanel in the east zone. When this is pressed it resets the program to the state it started in.
The program does this, with one minor problem. When the program resets the JPanel in the south zone now sits lower than it did originally. Once one of the buttons in the JPanel in the west zone is pressed it aligns correctly again. It's just for the first stage of reinitialization of the application.
To be honest, I would imagine it would be easier for you to just run the code & see the error for yourself.
There are 5 classes, however I am quite sure it is the first class BarTill that needs altering.
BarTill

import java.awt.*;
import javax.swing.*;
public class BarTill extends JApplet
{
public void init()
{
BarTill b=this;
ImageIcon image1 = new ImageIcon("button1.gif");
JButton button1 = new JButton(image1);
ImageIcon image2 = new ImageIcon("button2.gif");
JButton button2 = new JButton(image2);
ImageIcon image3 = new ImageIcon("button3.gif");
JButton button3 = new JButton(image3);
JToolBar bar = new JToolBar();
bar.add(button1);
bar.add(button2);
bar.add(button3);
CardLayout cl = new CardLayout();
CardLayout cl2=new CardLayout();
JPanel emptyPanel = new JPanel();
JPanel emptyPanel2 = new JPanel();
TillPanel tp=new TillPanel(b);
emptyPanel.setBackground(new Color(255,255,255));
emptyPanel2.setBackground(new Color(255,255,255));
JPanel panel2 = new JPanel();
panel2.setLayout(cl);
panel2.add(emptyPanel, "blank");
JPanel panel3=new JPanel();
panel3.setLayout(cl2);
panel3.add(emptyPanel2, "blank");
panel3.add(tp,"");
JPanel panel4=new JPanel();
panel4.setLayout(new FlowLayout(FlowLayout.CENTER));
for(int i=0;i<7;i++)
{
panel2.add(new SubChoicesPanel(tp,i,panel3,cl2), ""+i);
}
ChoicePanel panel1=new ChoicePanel(b,panel2,cl);
JPanel content=new JPanel();
content.setBackground(new Color(255,255,255));
content.setSize(1030,730);
content.setLayout(new BorderLayout());
String text2 = "<html><center>LADS TILLS of Broughton<br>Established 2003</center></html>";
JLabel lads=new JLabel();
lads.setText(text2);
Font f2=new Font("Helvetica",Font.BOLD,18);
lads.setFont(f2);
lads.setForeground(Color.black);
panel4.add(lads);
content.add("North",bar);
content.add("West",panel1);
content.add("Center",panel2);
content.add("East",panel3);
content.add("South",panel4);
setContentPane(content);
}
public static void main(String arg[])
{
BarTill bt=new BarTill();
bt.init();
JFrame f=new JFrame();
f.setSize(1030,735);
f.setTitle("Bar Till");
f.setContentPane(bt);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.show();
}
}

ChoicePanel

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class ChoicePanel extends JPanel implements ActionListener
{
Details d=new Details();
BarTill bar;
JPanel subChoices;
CardLayout choiceChooser;
int info[]=new int[4];
JButton choiceButtons[]=new JButton[7];
static String choices[]=
{
"Draught beer","Bottled beer","Spirits",
"Alco pop","Wine","Soft drinks","Snacks"
};
ChoicePanel(BarTill b,JPanel subChoiceBackPanel, CardLayout cl)
{
bar=b;
subChoices = subChoiceBackPanel;
choiceChooser = cl;
setLayout(new GridLayout(7,1,0,5));
setBackground(new Color(255,255,255));
Font f=new Font("Helvetica",Font.BOLD,24);
for(int i=0;i<choices.length;i++)
{
choiceButtons[i]=new JButton(choices[i]);
choiceButtons[i].setBackground(new Color(d.colors[i][0],d.colors[i][1],d.colors[i][2]));
choiceButtons[i].setFont(f);
add(choiceButtons[i]);
choiceButtons[i].addActionListener(this);
choiceButtons[i].setActionCommand(""+i);
}
}
public void actionPerformed(ActionEvent e)
{
String command = e.getActionCommand();
choiceChooser.show(subChoices, command);
for(int i=0;i<choices.length;i++)
{
if((""+i).equals(command))
{
}
else
{
choiceButtons[i].setBackground(new Color(d.colors[i][0],d.colors[i][1],d.colors[i][2]));
}
}
}
}

SubChoicesPanel

import java.text.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class SubChoicesPanel extends JPanel implements ActionListener
{
static String choices[]=
{
" Draught beer "," Bottled beer "," Spirits ",
" Alco pop "," Wine "," Soft drinks ",
" Snacks "
};
static String selection[][]=
{
{
" Bitter "," Lager "," Guinness ",
" Cider "," Kronenburg "
},
{
" Budweiser "," Becks "," Guinness ",
" Holsten Pils "," Herforder Pils "
},
{
" Vodka "," Whiskey "," Brandy ",
" Martini "," Baileys(small) "," Baileys(large) "
},
{
" Bacardi Breezer "," Smirnoff Ice "," VK ",
" Reef "," Red Square "
},
{
" White(glass) "," White(bottle) ",
" Red(glass) "," Red(bottle) "
},
{
" Half Pint "," Pint "
},
{
" Salted Peanuts "," Crisps "
}
};
Details d=new Details();
NumberFormat formatter = new DecimalFormat("0.00");
TillPanel till;
JPanel p3;
CardLayout c;
static int tally [][]=new int [choices.length][selection.length];
static int groupTally[]=new int [choices.length];
static double indCost[][]=new double[choices.length][selection.length];
static double catCost[]=new double[choices.length];
static double grandTotal;
JLabel subChoiceLabels[][]=new JLabel[choices.length][selection.length];
JButton plus[][]=new JButton[choices.length][selection.length];
JButton minus[][]=new JButton[choices.length][selection.length];
JLabel l[][]=new JLabel[choices.length][selection.length];
String s="Grand Total";
SubChoicesPanel(TillPanel tp,int num,JPanel panel3,CardLayout cl)
{
for(int i=0;i<choices.length;i++)
{
for(int j=0;j<selection[i].length;j++)
{
tally[i][j]=0;
indCost[i][j]=0;
}
groupTally[i]=0;
catCost[i]=0;
}
till=tp;
p3=panel3;
c=cl;
setLayout(new GridLayout(0,4,1,5));
setBackground(Color.white);
for(int j=0;j<selection[num].length;j++)
{
String number = formatter.format(d.prices[num][j]);
subChoiceLabels[num][j]=new JLabel("<html><center><font size=2>"+selection[num][j]+
"<br><font size=2>"+"�"+number,JLabel.CENTER);
subChoiceLabels[num][j].setBackground(new Color(d.colors[num][0],d.colors[num][1],d.colors[num][2]));
subChoiceLabels[num][j].setOpaque(true);
plus[num][j]=new JButton("<html><h2>+");
minus[num][j]=new JButton("<html><h2>-");
l[num][j]=new JLabel("<html><h2>0",JLabel.CENTER);
l[num][j].setOpaque(true);
l[num][j].setBackground(new Color(d.colors[num][0],d.colors[num][1],d.colors[num][2]));
add(subChoiceLabels[num][j]);
add(plus[num][j]);
plus[num][j].addActionListener(this);
add(minus[num][j]);
minus[num][j].addActionListener(this);
add(l[num][j]);
}
}
void display()
{
String numbers = formatter.format(Math.abs(grandTotal));
Font f3=new Font("monospaced",Font.PLAIN,11);
till.st.setFont(f3);
till.st.setText("");
till.t.setText("");
till.gt.setText("<html><center><h1>"+s+"<br><font size=8>"+"�"+numbers);
for(int i=0;i<choices.length;i++)
{
for(int j=0;j<selection[i].length;j++)
{
String number = formatter.format(Math.abs(indCost[i][j]));
till.st.append(""+selection[i][j]);
till.st.append(""+tally[i][j]);
till.st.append(" �"+number);
till.st.append("\n");
}
}
for(int i=0;i<choices.length;i++)
{
String number = formatter.format(Math.abs(catCost[i]));
till.t.setFont(f3);
till.t.append(""+choices[i]);
till.t.append(""+groupTally[i]);
till.t.append(" �"+number);
till.t.append("\n");
}
}
public void actionPerformed(ActionEvent e)
{
Object o=e.getSource();
String command = e.getActionCommand();
c.show(p3,"");
for(int i=0;i<choices.length;i++)
{
for(int j=0;j<selection[i].length;j++)
{
if(o==plus[i][j])
{
tally[i][j]+=1;
indCost[i][j]+=d.prices[i][j];
catCost[i]+=d.prices[i][j];
grandTotal+=d.prices[i][j];
groupTally[i]+=1;
l[i][j].setText("<html><h2>"+tally[i][j]);
display();
}
else
if(o==minus[i][j]&&tally[i][j]>0)
{
tally[i][j]-=1;
indCost[i][j]-=d.prices[i][j];
catCost[i]-=d.prices[i][j];
grandTotal-=d.prices[i][j];
groupTally[i]-=1;
l[i][j].setText("<html><h2>"+tally[i][j]);
display();
}
else
if(o==minus[i][j]&&tally[i][j]==0)
{
l[i][j].setText("<html><h2>"+tally[i][j]);
display();
}
}
}
}
}

TillPanel

import javax.swing.border.Border;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
class TillPanel extends JPanel implements ActionListener
{
BarTill till;
JTextArea t;
JTextArea st;
JButton cancel=new JButton();
JButton gt=new JButton();
void buildConstraints(GridBagConstraints gbc,int gx,int gy,int gw,int gh,int wx, int wy)
{
gbc.gridx=gx;
gbc.gridy=gy;
gbc.gridwidth=gw;
gbc.gridheight=gh;
gbc.weightx=wx;
gbc.weighty=wy;
}
TillPanel(BarTill b)
{
till=b;
Font f=new Font("Helvetica",Font.BOLD,28);
GridBagLayout gridBag=new GridBagLayout();
setBackground(Color.blue);
GridBagConstraints constraints=new GridBagConstraints();
setLayout(gridBag);
buildConstraints(constraints,0,0,10,1,1,10);
constraints.fill=GridBagConstraints.NONE;
String text = "<html><center>Cancel<br>Transaction!</center></html>";
cancel.setText(text);
cancel.setBackground(Color.red);
gridBag.setConstraints(cancel,constraints);
cancel.setFont(f);
cancel.addActionListener(this);
add(cancel);
buildConstraints(constraints,0,1,1,1,1,1);
constraints.fill=GridBagConstraints.NONE;
String text2 = "<html><center>LADS TILLS of Broughton<br>Established 2003</center></html>";
JLabel lads=new JLabel();
lads.setText(text2);
gridBag.setConstraints(lads,constraints);
Font f2=new Font("Helvetica",Font.BOLD,18);
lads.setFont(f2);
lads.setForeground(Color.yellow);
//add(lads);
buildConstraints(constraints,0,2,1,1,1,1);
st=new JTextArea(12,33);
Font f3=new Font("monospaced",Font.PLAIN,11);
st.setFont(f3);
st.setBackground(Color.white);
JScrollPane scroll=new JScrollPane(st,
ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS,
ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
Border blackline = BorderFactory.createLineBorder(Color.black);
st.setBorder(blackline);
gridBag.setConstraints(scroll,constraints);
st.setEditable(false);
add(scroll);
buildConstraints(constraints,0,3,1,1,1,1);
constraints.fill=GridBagConstraints.NONE;
t=new JTextArea(8,35);
t.setFont(f3);
t.setBackground(Color.white);
JScrollPane scroll2=new JScrollPane(t,
ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER,
ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
t.setBorder(blackline);
gridBag.setConstraints(scroll2,constraints);
t.setEditable(false);
add(scroll2);
buildConstraints(constraints,0,4,1,1,1,1);
constraints.fill=GridBagConstraints.NONE;
String text5 = "<html><center><h1>Grand Total<br><font size=8>�0.00</center></html>";
gt.setText(text5);
gt.setBackground(Color.red);
gridBag.setConstraints(gt,constraints);
gt.setFont(f);
gt.addActionListener(this);
add(gt);
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==cancel)
{
int response=JOptionPane.showConfirmDialog(null,
"<html><h2>Are you sure you want to cancel this transaction!",
"Cancellation!",JOptionPane.YES_NO_OPTION);
if(response==0)
{
till.init();
}
}
else
if(e.getSource()==gt)
{
gt.setBackground(Color.green);
JOptionPane.showMessageDialog(null,
"<html><h2>Till is now open! Please insert cash & close till to restart!");
till.init();
}
}
}

Details

I would be extremely grateful if some could run this and tell me why I have got this problem.
Many thanks, Dave.

21 years ago

Is there anyway of aligning text in JTextArea? Looking through the API it doesn't seem as though the class has anyway of doing so.
If I show you a example of output it might demonstrate the problem:
line8 count8 cost8
line9 count9 cost9
line10 count10 cost10
What I would prefer is this:
line8 count8 cost8
line9 count9 cost9
line10 count10 cost10
Is this sort of allignment possible?

21 years ago

The answer I was looking for was:
NumberFormat formatter = new DecimalFormat("0.00");
Thanks to Tanja again

21 years ago

Thanks again Tanja, your a real help.
One other question. Using this code that Tanja kindly supplied, I noticed that if you add 3 + 1.5 you get 4.5. I want it to display 4.50 instead. Any ideas?

21 years ago

Thanks Tanja & welcome to JavaRanch.
Is there anyway of actually formatting the actual double ddd instead of creating a string version number and formatting that?
[ January 04, 2004: Message edited by: Dave Johnson ]

21 years ago

Here is some code:

The result of this is: 7.1499999999999995
Where as I would have wanted the output: 7.15
I have that NumberFormat or DecimalFormat offer help with this. What I want is an example showing how these classes would work in something like the above code. So if you could add the missing code to the above or know a good link apart from the API please tell.
Thanks, Dave.

21 years ago

Tally will not add up

I'm not sure why you can't get running.
I wrote them in this order: 1. BarTill, 2. ChoicePanel, 3. SubChoicesPanel 4. TillPanel.
But as Bartill has the main method(), that will have to be run.
Hope that helps, Dave.

21 years ago

Tally will not add up

Here is the class which I am struggling with: SubChoicesPanel

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class SubChoicesPanel extends JPanel implements ActionListener
{
int a=choices.length*selection.length;
TillPanel till;
JPanel p3;
CardLayout c;
int tally []=new int [a];
JLabel subChoiceLabels[]=new JLabel[a];
JButton plus[]=new JButton[a];
JButton minus[]=new JButton[a];
JLabel l[]=new JLabel[a];
static int colors[][]=
{
{
255,230,100
},
{
255,210,100
},
{
255,190,100
},
{
255,170,100
},
{
255,150,100
},
{
255,130,100
},
{
255,110,100
}
};
static String subChoices[][]=
{
{
"Bitter","�2.04 per pint","Lager","�2.53 per pint","Guinness","�2.62 per pint",
"Cider","�2.31 per pint","Kronenburg","�2.72 per pint"
},
{
"Budweiser","�2.00 per bottle","Becks","�2.10 per bottle",
"Guinness","�1.95 per bottle","Holsten Pils","�1.96 per bottle",
"Herforder Pils","�2.43 per bottle"
},
{
"Vodka","�1.32 per 25ml","Whiskey","�1.32 per 25ml",
"Brandy","�1.43 per 25ml","Martini","�1.02 per 50 ml",
"Baileys","�1.50 per 25ml","Baileys","�2.75 per 50ml"
},
{
"Bacardi Breezer","�2.00 per bottle","Smirnoff Ice","�2.05 per bottle",
"VK","�2.10 per bottle","Reef","�2.15 per bottle",
"Red Square","�2.20 per bottle"
},
{
"White","�0.95 per glass","White","�3.50 per bottle",
"Red","�0.99 per glass","Red","�3.76 per bottle"
},
{
"Half Pint","�0.75","Pint","�1.50"
},
{
"Salted Peanuts","�0.54 per packet","Crisps","�0.30 per packet"
}
};
static String choices[]=
{
" Draught beer ",
" Bottled beer ",
" Spirits ",
" Alco pop ",
" Wine ",
" Soft drinks ",
" Snacks "
};
static String selection[][]=
{
{
" Bitter ",
" Lager ",
" Guinness ",
" Cider ",
" Kronenburg "
},
{
" Budweiser ",
" Becks ",
" Guinness ",
" Holsten Pils ",
" Herforder Pils "
},
{
" Vodka ",
" Whiskey ",
" Brandy ",
" Martini ",
" Baileys(small) ",
" Baileys(large) "
},
{
" Bacardi Breezer ",
" Smirnoff Ice ",
" VK ",
" Reef ",
" Red Square "
},
{
" White(glass) ",
" White(bottle) ",
" Red(glass) ",
" Red(bottle) "
},
{
" Half Pint ",
" Pint "
},
{
" Salted Peanuts ",
" Crisps "
}
};
static double prices[][]=
{
{
2.04,2.53,2.62,2.31,2.72
},
{
2.00,2.10,1.95,1.96,2.43
},
{
1.32,1.32,1.43,1.02,1.50,2.75
},
{
2.00,2.05,2.10,2.15,2.20
},
{
0.95,3.50,0.99,3.76
},
{
0.75,1.50
},
{
0.54,0.30
}
};
SubChoicesPanel(TillPanel tp,int num,JPanel panel3,CardLayout cl)
{
till=tp;
p3=panel3;
c=cl;
int j=0;
setLayout(new GridLayout(0,4,1,5));
setBackground(Color.white);
for(int i=0;i<subChoices[num].length;i++)
{
subChoiceLabels[j]=new JLabel("<html><center><h3>"+subChoices[num][i]+
"<br><font size=2>"+subChoices[num][++i],JLabel.CENTER);
subChoiceLabels[j].setBackground(new Color(colors[num][0],colors[num][1],colors[num][2]));
subChoiceLabels[j].setOpaque(true);
plus[j]=new JButton("<html><h1>+");
minus[j]=new JButton("<html><h1>-");
l[j]=new JLabel("<html><h1>0",JLabel.CENTER);
l[j].setOpaque(true);
l[j].setBackground(new Color(colors[num][0],colors[num][1],colors[num][2]));
add(subChoiceLabels[j]);
add(plus[j]);
plus[j].addActionListener(this);
add(minus[j]);
minus[j].addActionListener(this);
add(l[j]);
j++;
}
}
void display()
{
Font f3=new Font("monospaced",Font.PLAIN,11);
till.st.setFont(f3);
till.st.setText("");
till.t.setText("");
for(int i=0;i<choices.length;i++)
{
for(int j=0;j<selection[i].length;j++)
{
till.st.append(""+selection[i][j]);
till.st.append(""+tally[i]); //THIS BIT IS WRONG!!!!!
till.st.append("\n");
}
}
for(int i=0;i<choices.length;i++)
{
till.t.setFont(f3);
till.t.append(""+choices[i]);
till.t.append("\n");
}
}
public void actionPerformed(ActionEvent e)
{
Object o=e.getSource();
String command = e.getActionCommand();
c.show(p3,"");
for(int count=0;count<a;count++)
{
if(o==plus[count])
{
tally[count]+=1;
l[count].setText("<html><h1>"+tally[count]);
display();
}
else
if(o==minus[count]&&tally[count]>0)
{
tally[count]-=1;
l[count].setText("<html><h1>"+tally[count]);
display();
}
else
if(o==minus[count]&&tally[count]==0)
{
l[count].setText("<html><h1>"+tally[count]);
display();
}
}
}
}

There are other classes used which I'll put at the end. The class generates a CardLayout of JPanels. There are plus & minus buttons, as these are pressed the JLabel increments & decrements accordlingly. So far so good. The problem is that this panel then redraws another panel TillPanel and updates the tally accordingly. i.e. if the user selects bitter the JLabel incements 1 and the tally in BillPanel increases, the output isn't quite right. I think that my next step would be to make the arrays plus, minus etc into multiple arrays, this would help accesing them.
I am aware that this is a long piece of code & understand people not wanting to get involved in it. It might be easier to just run it to see what I mean.
Here are the other classes:
BillTill

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class BarTill extends JApplet
{
public void init()
{
BarTill b=this;
CardLayout cl = new CardLayout();
CardLayout cl2=new CardLayout();
JPanel emptyPanel = new JPanel();
JPanel emptyPanel2 = new JPanel();
TillPanel tp=new TillPanel();
emptyPanel.setBackground(new Color(255,255,255));
emptyPanel2.setBackground(new Color(255,255,255));
JPanel panel2 = new JPanel();
panel2.setLayout(cl);
panel2.add(emptyPanel, "blank");
JPanel panel3=new JPanel();
panel3.setLayout(cl2);
panel3.add(emptyPanel2, "blank");
panel3.add(tp,"");
for(int i=0;i<7;i++)
{
panel2.add(new SubChoicesPanel(tp,i,panel3,cl2), ""+i);
}
ChoicePanel panel1=new ChoicePanel(b,panel2,cl);
JPanel content=new JPanel();
content.setBackground(new Color(255,255,255));
content.setSize(1030,700);
content.setLayout(new FlowLayout(FlowLayout.LEFT));
content.add(panel1);
content.add(panel2);
content.add(panel3);
setContentPane(content);
}
public static void main(String arg[])
{
BarTill bt=new BarTill();
bt.init();
JFrame f=new JFrame();
f.setSize(1030,800);
f.setTitle("Bar Till");
f.setContentPane(bt);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.show();
}
}

ChoicePanel:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class ChoicePanel extends JPanel implements ActionListener
{
BarTill bar;
JPanel subChoices;
CardLayout choiceChooser;
int info[]=new int[4];
JButton choiceButtons[]=new JButton[7];
static String choices[]=
{
"Draught beer","Bottled beer","Spirits",
"Alco pop","Wine","Soft drinks","Snacks"
};
static int colors[][]=
{
{
255,230,100
},
{
255,210,100
},
{
255,190,100
},
{
255,170,100
},
{
255,150,100
},
{
255,130,100
},
{
255,110,100
}
};
ChoicePanel(BarTill b,JPanel subChoiceBackPanel, CardLayout cl)
{
bar=b;
subChoices = subChoiceBackPanel;
choiceChooser = cl;
setLayout(new GridLayout(7,1,0,5));
setBackground(new Color(255,255,255));
Font f=new Font("Helvetica",Font.BOLD,34);
for(int i=0;i<choices.length;i++)
{
choiceButtons[i]=new JButton(choices[i]);
choiceButtons[i].setBackground(new Color(colors[i][0],colors[i][1],colors[i][2]));
choiceButtons[i].setFont(f);
add(choiceButtons[i]);
choiceButtons[i].addActionListener(this);
choiceButtons[i].setActionCommand(""+i);
}
}
public void actionPerformed(ActionEvent e)
{
String command = e.getActionCommand();
choiceChooser.show(subChoices, command);
for(int i=0;i<choices.length;i++)
{
if((""+i).equals(command))
{
}
else
{
choiceButtons[i].setBackground(new Color(colors[i][0],colors[i][1],colors[i][2]));
}
}
}
}

TillPanel:

import java.awt.*;
import java.awt.event.*;
import javax.swing.border.Border;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
class TillPanel extends JPanel implements ActionListener
{
JTextArea t;
JTextArea st;
JButton cancel=new JButton();
JButton gt=new JButton();
void buildConstraints(GridBagConstraints gbc,int gx,int gy,int gw,int gh,int wx, int wy)
{
gbc.gridx=gx;
gbc.gridy=gy;
gbc.gridwidth=gw;
gbc.gridheight=gh;
gbc.weightx=wx;
gbc.weighty=wy;
}
static String choices[]=
{
" Draught beer ",
" Bottled beer ",
" Spirits ",
" Alco pop ",
" Wine ",
" Soft drinks ",
" Snacks "
};
static String selection[][]=
{
{
" Bitter ",
" Lager ",
" Guinness ",
" Cider ",
" Kronenburg "
},
{
" Budweiser ",
" Becks ",
" Guinness ",
" Holsten Pils ",
" Herforder Pils "
},
{
" Vodka ",
" Whiskey ",
" Brandy ",
" Martini ",
" Baileys(small) ",
" Baileys(large) "
},
{
" Bacardi Breezer ",
" Smirnoff Ice ",
" VK ",
" Reef ",
" Red Square "
},
{
" White(glass) ",
" White(bottle) ",
" Red(glass) ",
" Red(bottle) "
},
{
" Half Pint ",
" Pint "
},
{
" Salted Peanuts ",
" Crisps "
}
};
TillPanel()
{
Font f=new Font("Helvetica",Font.BOLD,32);
GridBagLayout gridbag=new GridBagLayout();
setBackground(Color.blue);
GridBagConstraints constraints=new GridBagConstraints();
setLayout(gridbag);
buildConstraints(constraints,0,0,10,1,1,10);
constraints.fill=GridBagConstraints.NONE;
String text = "<html><center>Cancel<br>Transaction!</center></html>";
cancel.setText(text);
cancel.setBackground(Color.red);
gridbag.setConstraints(cancel,constraints);
cancel.setFont(f);
cancel.addActionListener(this);
add(cancel);
/*buildConstraints(constraints,0,1,1,1,1,1);
constraints.fill=GridBagConstraints.NONE;
String text2 = "<html><center>LADS TILLS of Broughton<br>Established 2003</center></html>";
JLabel lads=new JLabel();
lads.setText(text2);
gridbag.setConstraints(lads,constraints);
Font f2=new Font("Helvetica",Font.BOLD,18);
lads.setFont(f2);
lads.setForeground(Color.yellow);
add(lads);*/
buildConstraints(constraints,0,2,1,1,1,1);
st=new JTextArea(23,30);
Font f3=new Font("monospaced",Font.PLAIN,11);
st.setFont(f3);
for(int i=0;i<choices.length;i++)
{
for(int j=0;j<selection[i].length;j++)
{
st.append("");
st.append("\n");
}
}
st.setBackground(Color.white);
JScrollPane scroll=new JScrollPane(st,
ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS,
ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
Border blackline = BorderFactory.createLineBorder(Color.black);
st.setBorder(blackline);
gridbag.setConstraints(scroll,constraints);
st.setEditable(false);
add(scroll);
buildConstraints(constraints,0,3,1,1,1,1);
constraints.fill=GridBagConstraints.NONE;
t=new JTextArea(8,32);
for(int i=0;i<choices.length;i++)
{
t.setFont(f3);
t.append("");
t.append("\n");
}
t.setBackground(Color.white);
JScrollPane scroll2=new JScrollPane(t,
ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER,
ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
t.setBorder(blackline);
gridbag.setConstraints(scroll2,constraints);
t.setEditable(false);
add(scroll2);
buildConstraints(constraints,0,4,1,1,1,1);
constraints.fill=GridBagConstraints.NONE;
String text5 = "<html><center>Grand Total<br>�0.00</center></html>";
gt.setText(text5);
gt.setBackground(Color.red);
gridbag.setConstraints(gt,constraints);
gt.setFont(f);
gt.addActionListener(this);
add(gt);
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==cancel)
{
System.out.println("Cancel button is listening");
}
else
if(e.getSource()==gt)
{
System.out.println("Grand Total button is listening");
}
}
}

Any constructive advice would be gratefully received.
Thanks, Dave.

21 years ago

I could have used monospace font aswell (damn I'm slow!).

21 years ago

Got it, isCellEditable(int row, int col). Seems to stop any altering. Right I'm off to bed, so I can be up nice & early & drive myself mad with GUI's. Thanks again, Dave.

21 years ago

JTable sounds like a good idea Ken. Only problem I can see with JTable is that the fields can be edited & it doesn't inherit setEditable(). Maybe there is an equivalent in JTable, I'll keep reading the API.

21 years ago