Alignment of items in a Java Applet JPanel
I'm trying to get the top right square to be the same width as the two below it and I'd like to get the JTextArea below to match width as well. Any ideas?
It seems like no matter what I set the sizes to it's doing whatever it wants. For instance the Output JTextArea is set to just one column. The top image is (700x250) and the two half-images are (350x250).
public class MyApplet extends Applet{
private static final long serialVersionUID = 1L;
private JTextArea input_data;
private JTextArea input_jmax;
private JTextArea input_gibbs;
private JTextArea input_burnin;
private JTextArea output_text;
private JLabel output_graph;
private JLabel output_burn1;
private JLabel output_burn2;
private static Graphics g=null;
public void init () {
//INPUT
this.input_data = new JTextArea("Enter Data", 30, 30);
JScrollPane data_pane= new JScrollPane(input_data);
this.input_jmax = new JTextArea("Polya-Tree Levels", 1, 30);
this.input_gibbs = new JTextArea("Gibbs Iterates", 1, 30);
this.input_burnin = new JTextArea("Burnin", 1, 30);
//OUTPUT
Dimension D;
D = new Dimension(700, 250);
Image start;
this.output_text = new JTextArea("####################Output####################",15,1);
this.output_text.setEditable(false);
JScrollPane output_pane= new JScrollPane(output_text);
this.output_burn1 = new JLabel();
D = new Dimension(345,250);
start = createImage((int) D.getWidth(), (int) D.getHeight());
g = start.getGraphics();
g.setColor(Color.WHITE);
g.fillRect(0,0,345,250);
output_burn1.setIcon(new ImageIcon(start));
this.output_burn2 = new JLabel();
D = new Dimension(345, 250);
start = createImage((int) D.getWidth(), (int) D.getHeight());
g = start.getGraphics();
g.setColor(Color.WHITE);
g.fillRect(0,0,345,250);
output_burn2.setIcon(new ImageIcon(start));
this.output_graph = new JLabel();
start = createImage((int) D.getWidth(), (int) D.getHeight());
g = start.getGraphics();
g.setColor(Color.WHITE);
g.fillRect(0,0,700,250);
output_graph.setIcon(new ImageIcon(start));
//BUTTON
JButton b = new JButton("Process Data");
//set size
setSize(1200, 600);
setBackground(Color.lightGray);
JPanel burninPanel = new JPanel();
burninPanel.setLayout(new BoxLayout(burninPanel, BoxLayout.X_AXIS));
burninPanel.add(output_burn1);
burninPanel.add(Box.createHorizontalStrut(10));
burninPanel.add(output_burn2);
/*
//Create Input Side
* */
JPanel inputPanel = new JPanel();
inputPanel.setLayout(new BoxLayout(inputPanel, BoxLayout.Y_AXIS));
inputPanel.setBackground(Color.LIGHT_GRAY);
inputPanel.add(data_pane);
inputPanel.add(Box.createVerticalStrut(10));
inputPanel.add(input_jmax);
inputPanel.add(Box.createVerticalStrut(10));
inputPanel.add(input_gibbs);
inputPanel.add(Box.createVerticalStrut(10));
inputPanel.add(input_burnin);
inputPanel.add(Box.createVerticalStrut(10));
inputPanel.add(b);
//Create Output Side
JPanel outputPanel = new JPanel();
outputPanel.setBackground(Color.lightGray);
outputPanel.setLayout(new BoxLayout(outputPanel, BoxLayout.Y_AXIS));
outputPanel.add(output_graph);
outputPanel.add(Box.createVerticalStrut(10));
outputPanel.add(burninPanel);
outputPanel.add(Box.createVerticalStrut(10));
outputPanel.add(output_pane);
this.setLayout(new GridLayout(1, 2));
this.setVisible(true);
GroupLayout layout = new GroupLayout(this);
layout.setAutoCreateGaps(true);
layout.setAutoCreateContainerGaps(true);
layout.setHorizontalGroup(layout.createSequentialGroup()
.addGroup(layout.createSequentialGroup()
.addComponent(inputPanel)
.addComponent(outputPanel)
)
);
layout.setVerticalGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup()
.addComponent(inputPanel)
.addComponent(outputPanel)
)
);
this.setLayout(layout);
this.setVisible(true);
// specify that action events sent by the
// button or the input TextField should be handled
// by the same CapitalizerAction object
Multiplicity ca = new Multiplicity(input_data, input_jmax, input_gibbs, input_burnin, output_text,output_graph);
b.addActionListener(ca);
//this.input.addActionListener(ca);
}
}
Solution
It turns out that you can't add an image of the same size to the stack. Instead of placing all the items an "outputPanel" I put each one in it's own panel and added all the panels to the outputPanel. Such a stupid thing!
public class MyApplet extends Applet{
private static final long serialVersionUID = 1L;
private JTextArea input_data;
private JTextArea input_jmax;
private JTextArea input_gibbs;
private JTextArea input_burnin;
private JTextArea output_text;
private JLabel output_graph;
private JLabel output_burn1;
private JLabel output_burn2;
private static Graphics g=null;
public void init () {
//INPUT
this.input_data = new JTextArea("Data", 30, 30);
JScrollPane data_pane= new JScrollPane(input_data);
this.input_jmax = new JTextArea("Polya-Tree Levels", 1, 30);
this.input_gibbs = new JTextArea("Gibbs Iterates", 1, 30);
this.input_burnin = new JTextArea("Burn-in", 1, 30);
//OUTPUT
Dimension D;
Image start;
this.output_burn1 = new JLabel();
D = new Dimension(345,200);
start = createImage((int) D.getWidth(), (int) D.getHeight());
g = start.getGraphics();
g.setColor(Color.WHITE);
g.fillRect(0,0,345,200);
output_burn1.setIcon(new ImageIcon(start));
this.output_burn2 = new JLabel();
D = new Dimension(345, 200);
start = createImage((int) D.getWidth(), (int) D.getHeight());
g = start.getGraphics();
g.setColor(Color.WHITE);
g.fillRect(0,0,345,200);
output_burn2.setIcon(new ImageIcon(start));
this.output_graph = new JLabel();
D = new Dimension(700, 200);
start = createImage((int) D.getWidth(), (int) D.getHeight());
g = start.getGraphics();
g.setColor(Color.WHITE);
g.fillRect(0,0,700,200);
output_graph.setIcon(new ImageIcon(start));
//BUTTON
JButton b = new JButton("Process Data");
//set size
setSize(1200, 600);
setBackground(Color.lightGray);
//Create Input Side
JPanel buttonPanel = new JPanel();
buttonPanel.setBackground(Color.LIGHT_GRAY);
buttonPanel.add(b);
JPanel inputPanel = new JPanel();
inputPanel.setLayout(new BoxLayout(inputPanel, BoxLayout.Y_AXIS));
inputPanel.setBackground(Color.LIGHT_GRAY);
inputPanel.add(data_pane);
inputPanel.add(Box.createVerticalStrut(10));
inputPanel.add(input_jmax);
inputPanel.add(Box.createVerticalStrut(10));
inputPanel.add(input_gibbs);
inputPanel.add(Box.createVerticalStrut(10));
inputPanel.add(input_burnin);
inputPanel.add(Box.createVerticalStrut(10));
inputPanel.add(buttonPanel);
//Create Output Side
JPanel estPanel = new JPanel();
estPanel.setBackground(Color.LIGHT_GRAY);
estPanel.add(output_graph);
JPanel burninPanel = new JPanel();
burninPanel.setBackground(Color.LIGHT_GRAY);
burninPanel.setLayout(new BoxLayout(burninPanel, BoxLayout.X_AXIS));
burninPanel.add(output_burn1);
burninPanel.add(Box.createHorizontalStrut(10));
burninPanel.add(output_burn2);
this.output_text = new JTextArea("",15,1);
this.output_text.setEditable(false);
JScrollPane output_pane= new JScrollPane(output_text);
JPanel outputPanel = new JPanel();
outputPanel.setBackground(Color.lightGray);
outputPanel.setLayout(new BoxLayout(outputPanel, BoxLayout.Y_AXIS));
outputPanel.add(estPanel);
outputPanel.add(Box.createVerticalStrut(10));
outputPanel.add(burninPanel);
outputPanel.add(Box.createVerticalStrut(10));
outputPanel.add(output_pane);
this.setVisible(true);
GroupLayout layout = new GroupLayout(this);
layout.setAutoCreateGaps(true);
layout.setAutoCreateContainerGaps(true);
layout.setHorizontalGroup(layout.createSequentialGroup()
.addGroup(layout.createSequentialGroup()
.addComponent(inputPanel)
.addComponent(outputPanel)
)
);
layout.setVerticalGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(LEADING)
.addComponent(inputPanel)
.addComponent(outputPanel)
)
);
this.setLayout(layout);
this.setVisible(true);
// specify that action events sent by the
// button or the input TextField should be handled
// by the same CapitalizerAction object
Multiplicity ca = new Multiplicity(input_data, input_jmax, input_gibbs, input_burnin, output_text,output_graph,output_burn1,output_burn2);
b.addActionListener(ca);
}
}
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