Replace current JScrollPane to another JScrollPane in JPanel - user-interface

Question

I would like to change my current JScrollpane to a new one. I would like it to change after I pressed my button and the method actionPerformed is called.
The problem I currently have is that it only paints the Jscroll at the beginning of the application, when i want to change it, it dosent work.(When the application is running).
What I do is:
In the beginning of the application I make a new JscrollPane and this one is empty. If the button is pressed: Show another JscrollPane with content.
if(btnPressed == true){
//set current empty jscroll pane to a filled one.
jscrollpane = View.createScrollPlane();
//View.createScrollPlane = This method fills the JscrollPane with text.
}
else { //show a empty one
jscrollpane = new JscrollPane();
}
I have tried:
- remove
- add
- revalidate
- repaint
And also:
JscrollPane.setViewPortView(JscrollPane);
I've looked to CardLayout but I would rather not and it dosent allow me since only empty containers can be changed to CardLayout. Currently its on GridBagLayout.
Thanks in advance
RE-edit: the Create-UI method dosent change the current empty Jscrollpanel to the new one. It only initialise it once (at the beginning) but dosent update the Jscroll panel. (when i tried to put it on false) it worked, the boolean did change to true but dosent update the jscroll panel.
package readDataPluginPackage;
import com.change_vision.jude.api.inf.AstahAPI;
import com.change_vision.jude.api.inf.project.ProjectAccessor;
import javafx.embed.swing.JFXPanel;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.beans.PropertyChangeListener;
public class Application {
JPanel mainJPanel;
private JPanel leftJPanel;
private JPanel rightJPanel;
private JButton btnSynchronise;
private JButton btnPreview;
private JScrollPane JScrollPaneReport;
public JScrollPane JScrollPanePreview;
private boolean btnPreviewClicked = false;
public Application() {
$$$setupUI$$$();
btnPreview.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
btnPreviewClicked = true;
JOptionPane.showMessageDialog(null, "Showing..." + btnPreviewClicked);
// ShowXMLFileView showXMLFileView = new ShowXMLFileView();
// JScrollPanePreview = showXMLFileView.createLabelPane();
// if (btnPreview.isEnabled()) {
// ShowXMLFileView showXMLFileView = new ShowXMLFileView();
// JScrollPanePreview = showXMLFileView.createLabelPane();
JOptionPane.showMessageDialog(null, "XML File Preview has been updated.");
createUIComponents();
// JScrollPanePreview.revalidate();
// JScrollPanePreview.repaint();
JOptionPane.showMessageDialog(null, "Components are created again.");
}
// }
});
btnSynchronise.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
JOptionPane.showMessageDialog(null, "Synchronising...");
}
});
}
public static void main(String[] args) {
try {
//Save Astah Project as XML File
ProjectAccessor prjAccessor = AstahAPI.getAstahAPI().getProjectAccessor();
prjAccessor.open("C:\\Users\\delina\\generated\\test.asta");
prjAccessor.exportXMI("C:\\Users\\delina\\generatedXMI\\temp.xml");
prjAccessor.close();
//Show the most recent version of the xml file of the Astah Project
ReadXMLFile rd = new ReadXMLFile();
rd.showXMLFileLines();
} catch (Exception e) {
e.printStackTrace();
}
JFrame frame = new JFrame("Application");
frame.setContentPane(new Application().mainJPanel);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);
}
private void createUIComponents() {
if (btnPreviewClicked == true) {
// ShowXMLFileView showXMLFileView = new ShowXMLFileView();
// JScrollPanePreview = showXMLFileView.createLabelPane();
// JScrollPanePreview.setViewportView(JScrollPanePreview);
leftJPanel.remove(JScrollPanePreview);
ShowXMLFileView showXMLFileView = new ShowXMLFileView();
JScrollPane JScrollPanePreview = showXMLFileView.createLabelPane();
leftJPanel.add(JScrollPanePreview);
JScrollPanePreview.revalidate();
JScrollPanePreview.repaint();
JOptionPane.showMessageDialog(null, "JScrollPanel changed");
} else {
JScrollPanePreview = new JScrollPane();
}
}
/**
* Method generated by IntelliJ IDEA GUI Designer
* >>> IMPORTANT!! <<<
* DO NOT edit this method OR call it in your code!
*
* #noinspection ALL
*/
private void $$$setupUI$$$() {
createUIComponents();
mainJPanel = new JPanel();
mainJPanel.setLayout(new GridBagLayout());
leftJPanel = new JPanel();
leftJPanel.setLayout(new GridBagLayout());
GridBagConstraints gbc;
gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.weightx = 1.0;
gbc.weighty = 1.0;
gbc.fill = GridBagConstraints.BOTH;
mainJPanel.add(leftJPanel, gbc);
btnSynchronise = new JButton();
btnSynchronise.setText("Synchronise");
gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 2;
gbc.weightx = 1.0;
gbc.fill = GridBagConstraints.HORIZONTAL;
leftJPanel.add(btnSynchronise, gbc);
btnPreview = new JButton();
btnPreview.setText("Preview");
gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 1;
gbc.weightx = 1.0;
gbc.fill = GridBagConstraints.HORIZONTAL;
leftJPanel.add(btnPreview, gbc);
gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.weightx = 1.0;
gbc.weighty = 1.0;
gbc.fill = GridBagConstraints.BOTH;
leftJPanel.add(JScrollPanePreview, gbc);
JScrollPanePreview.setBorder(BorderFactory.createTitledBorder("XML File Preview"));
rightJPanel = new JPanel();
rightJPanel.setLayout(new GridBagLayout());
gbc = new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 0;
gbc.weightx = 1.0;
gbc.weighty = 1.0;
gbc.fill = GridBagConstraints.BOTH;
mainJPanel.add(rightJPanel, gbc);
JScrollPaneReport = new JScrollPane();
gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.weightx = 1.0;
gbc.weighty = 1.0;
gbc.fill = GridBagConstraints.BOTH;
rightJPanel.add(JScrollPaneReport, gbc);
JScrollPaneReport.setBorder(BorderFactory.createTitledBorder("Synchronise report"));
}
/**
* #noinspection ALL
*/
public JComponent $$$getRootComponent$$$() {
return mainJPanel;
}
}
package readDataPluginPackage;
import com.change_vision.jude.api.inf.project.ProjectAccessor;
import com.change_vision.jude.api.inf.project.ProjectAccessorFactory;
import com.change_vision.jude.api.inf.project.ProjectEvent;
import com.change_vision.jude.api.inf.project.ProjectEventListener;
import com.change_vision.jude.api.inf.ui.IPluginExtraTabView;
import com.change_vision.jude.api.inf.ui.ISelectionListener;
import javax.swing.*;
import java.awt.*;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
public class ShowUserInterface extends JPanel implements IPluginExtraTabView, ProjectEventListener {
public ShowUserInterface() {
initComponents();
}
private void initComponents() {
setLayout(new BorderLayout());
add(createLabelPane());
addProjectEventListener();
}
private void addProjectEventListener() {
try {
ProjectAccessor projectAccessor = ProjectAccessorFactory.getProjectAccessor();
projectAccessor.addProjectEventListener(this);
} catch (ClassNotFoundException e) {
e.getMessage();
}
}
private Container createLabelPane() {
JLabel label = new JLabel("AuguSoft Synchronise");
JScrollPane pane = new JScrollPane(label);
Method privateMethod = null;
Application app = null;
Object o = null;
JComponent jComponent = null;
try {
app = new Application();
privateMethod = Application.class.getDeclaredMethod("$$$setupUI$$$");
privateMethod.setAccessible(true);
o = privateMethod.invoke(app);
jComponent = app.$$$getRootComponent$$$();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
return jComponent;
}
#Override
public void projectChanged(ProjectEvent e) {
}
#Override
public void projectClosed(ProjectEvent e) {
}
#Override
public void projectOpened(ProjectEvent e) {
}
#Override
public void addSelectionListener(ISelectionListener listener) {
}
#Override
public Component getComponent() {
return this;
}
#Override
public String getDescription() {
return "Show AuguSoft Synchronise here";
}
#Override
public String getTitle() {
return "AuguSoft View";
}
public void activated() {
}
public void deactivated() {
}
}

Answer 1

So, with doing nothing else but looking at you code, I noticed that in your createUIComponents method, you are shadowing the JScrollPanePreview property...
public class Application {
//...
public JScrollPane JScrollPanePreview;
//...
public Application() {..}
private void createUIComponents() {
if (btnPreviewClicked == true) {
//...
leftJPanel.remove(JScrollPanePreview);
ShowXMLFileView showXMLFileView = new ShowXMLFileView();
JScrollPane JScrollPanePreview = showXMLFileView.createLabelPane();
//...
} else {
JScrollPanePreview = new JScrollPane();
}
}
This means that the next time you come to replace the JScrollPanePreview, you won't have the correct reference to remove it.
To my mind (and I don't have you full code base or intention), I'd simply replace the JScrollPanePreview view port (besides, I'm not sure how you can assign a Container to a JScrollPane anyway :P)
private void createUIComponents() {
if (btnPreviewClicked == true) {
JScrollPanePreview.setViewportView(showXMLFileView.createLabelPane());
} else {
JScrollPanePreview = new JScrollPane();
}
}
Just as an observation ;)