Changing L&F on a JFrame?

Hi all,
I am currently writing my own look and feel, and I am having trouble with applying this on the JFrame-object. I managed to do this on the JInternalFrame (by using MetalInternalFrameUI)
but I can not find a similiar class for a JFrame. I know that the look and feel for a JFrame is platform-dependent but still, I think it should be possible to do it. If not, is there any way to use JInternalFrame directly as a main container?
Thank you,
Regards Veroslav

Hi Veroslav
You need to tell the L&F manager what you are using. By simply calling
JFrame.setDefaultLookAndFeelDecorated You are telling JFrames to decorate using the L&F if one is provided. If you have not provided one it will use the default L&F implementation.
You need to do something like this.
String rootpaneClassName = "com.yourcompany.YourRootPaneUI";
UIManager.put("RootPaneUI", rootpaneClassName);
UIManager.put(rootpaneClassName, Class.forName(rootpaneClassName));This will tell the L&F manager to use you rootpane UI class opposed to the default.
You can then either set this to individual frames like so.
try
//get it to use our nice buttons and colours, loverly
m_externalFrame.setUndecorated(true);
m_externalFrame.getRootPane().setWindowDecorationStyle(JRootPane.FRAME);
RootPaneUI rpUI = (RootPaneUI)Class.forName(tmp).newInstance();
m_externalFrame.getRootPane().setUI(rpUI);
}catch(Exception ex)
m_exceptionService.handleException(
ex, "Cannot find Branded Look & Feel for Main Frame" );
}You could alternatively write it directly into your L&F class to map all JRootPanes to use your RootPaneUI class
Have a look at the Metal L&F classes ;) to get an idea about the RootPaneUI and TitlePane implementations.
N35Sy

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Looks like no way to do it??depends on the L&F you want.
here's one way
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Changing L&F for the JFrame?

Hi all,
I am currently writing my own look and feel, and I am having trouble with applying this on the JFrame-object. I managed to do this on the JInternalFrame (by using MetalInternalFrameUI)
but I can not find a similiar class for a JFrame. I know that the look and feel for a JFrame is platform-dependent but still, I think it should be possible to do it. If not, is there any way to use JInternalFrame directly as a main container?
Thank you,
Regards Veroslav

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http://java.sun.com/j2se/1.4.1/docs/api/javax/swing/JFrame.html#setDefaultLookAndFeelDecorated(boolean)
http://java.sun.com/j2se/1.4.1/docs/api/java/awt/Frame.html#setUndecorated(boolean)

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Message was edited by:
therathna

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Hello,
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I made some of the changes with no luck. Here is some of the code:
---------from ConstructRoom.java--------
//Imports
public class ConstructRoom extends JFrame
//----Member objects and varibles
private static String theTitle; //Varible for title of frame
private JFrame theFrame; //Object for the JFrame
// ----------------------------------------------------------- ConstructRoom
public ConstructRoom(String theTitle)
super(theTitle); //JFrame super class
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}//end ConstructRoom(String theTitle)
// -------------------------------------------------------------------- main
public static void main(String args[])
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}//end class ConstructRoom extends JFrame
--------from DimensionsPanel.java
//Imports
public class DimensionsPanel extends JPanel
//----Member objects and varibles
private JPanel dimensionsPanel; //The main panel to hold all info
private Box panelBox; //Box for all boxes which is added to the JPanel
private Box furnListBox; //Box for all related items of the furnList
private Box dimensionsBox; //Box for all dimensions (x, y, z)
private Box xFieldBox; //Box for all related items of the xField
private Box yFieldBox; //Box for related items of the yField
private Box zFieldBox; //Box for related items of the zField
private Box buttonsBox; //Box for all buttons
private Box clearBox; //Box for related clear button items
private Box buildBox; //Box for related build button items
private JLabel furnListLabel; //Label for the furnList comboBox
private JLabel xFieldLabel; //Label for the xField
private JLabel yFieldLabel; //Label for yField
private JLabel zFieldLabel; //Label for zField
private JTextField xField; //Text field to enter the x dimension
private JTextField yField; //Text field to enter the y dimension
private JTextField zField; //Text field to enter the z dimension
private JComboBox furnList; //List of selectable furniture objects
private JButton clearButton; //Clear button
private JButton buildButton; //Build button
// --------------------------------------------------------- DimensionsPanel
public DimensionsPanel()
//----Setting up dimensions panel
dimensionsPanel = new JPanel();
dimensionsPanel.setLayout(new BorderLayout());
dimensionsPanel.setPreferredSize(new Dimension(150,150));
dimensionsPanel.setBorder(new TitledBorder(new EtchedBorder(),
"Select Furniture and Enter Dimensions"));
//----Initializing GUI components
furnListLabel = new JLabel("Select from list ");
furnList = new JComboBox();
xFieldLabel = new JLabel("Enter Width ");
xField = new JTextField();
yFieldLabel = new JLabel("Enter Height ");
yField = new JTextField();
zFieldLabel = new JLabel("Enter Depth ");
zField = new JTextField();
buildButton = new JButton("Build Object");
clearButton = new JButton("Clear Object");
//-----Setting up the combo box and adding items
furnList.addActionListener(new ComboProcessor());
furnList.addItem(" "); //Default item
furnList.addItem("Color Cube");
furnList.setMaximumRowCount(6); //Max number of items before scrolling
furnList.setSelectedItem(" "); //Set initial to default item
//--Add the furnList to its box for placement in the JPanel
furnListBox = Box.createHorizontalBox();
furnListBox.add(Box.createHorizontalStrut(5));
furnListBox.add(furnListLabel); //Adding the combo box label
furnListBox.add(furnList); //Adding the combo box
furnListBox.add(Box.createHorizontalStrut(5)); //Spacing
//-------------------------------- Start Dimensions Components
//----Setting up the xField
xField.setEnabled(false); //Disabled at start
xField.setFocusTraversalKeysEnabled(false); //Disabling the Tab Key
//----Adding the event listeners
xField.addActionListener(new XTextProcessor()); //Enter Key
xField.addMouseListener(new ClickProcessor()); //Mouse Click
//--Add the xField to its box for placement in the dimensionsBox
xFieldBox = Box.createHorizontalBox();
xFieldBox.add(Box.createHorizontalStrut(10)); //Spacing
xFieldBox.add(Box.createGlue()); //Take up extra space
xFieldBox.add(xFieldLabel); //Adding the text field label
xFieldBox.add(xField); //Adding the text field
xFieldBox.add(Box.createHorizontalStrut(100)); //Spacing
//----Setting up the yfield
yField.setEnabled(false); //Disabled at start
yField.setFocusTraversalKeysEnabled(false); //Disabling TAB KEY
//----Adding the event listeners
yField.addActionListener(new YTextProcessor()); //Enter Key
yField.addMouseListener(new ClickProcessor()); //Mouse Click
//--Add the yField to its box for placement in the dimensionsBox
yFieldBox = Box.createHorizontalBox();
yFieldBox.add(Box.createHorizontalStrut(10)); //Spacing
yFieldBox.add(Box.createGlue()); //Take up extra space
yFieldBox.add(yFieldLabel); //Adding the text field label
yFieldBox.add(yField); //Adding the text field
yFieldBox.add(Box.createHorizontalStrut(100)); //Spacing
//----Setting up the zfield
zField.setEnabled(false); //Disabled at start
zField.setFocusTraversalKeysEnabled(false); //Disabling TAB KEY
//----Adding the event listeners
zField.addActionListener(new ZTextProcessor()); //Enter Key
zField.addMouseListener(new ClickProcessor()); //Mouse Click
//--Add the zField to its box for placement in the dimensionsBox
zFieldBox = Box.createHorizontalBox();
zFieldBox.add(Box.createHorizontalStrut(10)); //Spacing
zFieldBox.add(Box.createGlue()); //Take up extra space
zFieldBox.add(zFieldLabel); //Adding the text field label
zFieldBox.add(zField); //Adding the text field
zFieldBox.add(Box.createHorizontalStrut(100)); //Spacing
//----Adding all dimension components to the dimensionsBox
dimensionsBox = Box.createVerticalBox();
dimensionsBox.add(xFieldBox); //Adding the xFieldBox
dimensionsBox.add(Box.createVerticalStrut(10)); //Spacing
dimensionsBox.add(yFieldBox); //Adding the yFieldBox
dimensionsBox.add(Box.createVerticalStrut(10)); //Spacing
dimensionsBox.add(zFieldBox); //Adding the zFieldBox
//-------------------------------- End Dimension Components
//----Setting up the clearButton
clearButton.setEnabled(false); //Disabled at start
//----Adding the event listener
clearButton.addActionListener(new ClearProcessor());
//--Add the clear button to its box for placement
clearBox = Box.createHorizontalBox();
clearBox.add(Box.createHorizontalStrut(5)); //Spacing
clearBox.add(clearButton); //Adding the clearButton
//----Setting up the buildButton
buildButton.setEnabled(false); //Disabled at start
//--Add the action listener here
buildBox = Box.createHorizontalBox();
buildBox.add(buildButton); //Adding the buildButton
buildBox.add(Box.createHorizontalStrut(5)); //Spacing
//----Adding both buttons the buttonsBox
buttonsBox = Box.createHorizontalBox();
buttonsBox.add(clearBox); //Adding the clearBox
buttonsBox.add(Box.createHorizontalStrut(10)); //Spacing
buttonsBox.add(buildBox); //Adding the buildBox
//----Create the JPanel (dimensionsPanel)
//--Creating the main box to be added to the JPanel
panelBox = Box.createVerticalBox();
panelBox.add(furnListBox); //Adding the furnListBox components
panelBox.add(Box.createVerticalStrut(10)); //Spacing
panelBox.add(dimensionsBox); //Adding the dimensionBox components
panelBox.add(Box.createVerticalStrut(10)); //Spacing
panelBox.add(buttonsBox); //Adding the buttonsBox components
panelBox.add(Box.createVerticalStrut(10)); //Spacing
dimensionsPanel.add(panelBox); //Adding all components to the JPanel
System.out.println("end dimensionpanel");
}//end DimensionsPanel()
//------ActionListeners
}//end class DimensionsPanel extends JPanel

Problem with JFrame and JPanel

Okay, well I'm busy doing a lodge management program for a project and I have programmed this JFrame
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
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               public void mouseReleased(MouseEvent e)
                    imgPanel_mouseReleased(e);
               public void mouseEntered(MouseEvent e)
                    imgPanel_mouseEntered(e);
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               public void mouseDragged(MouseEvent e)
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          c.setBounds(x,y,width,height);
          container.add(c);
     private void imgPanel_mousePressed(MouseEvent e)
          for(int a = 1; a < cottageIcon.length; a++)
               if(withinBounds(e.getX(),e.getY(),cottageIcon[a].getBounds()))
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                    selectedCottage = a;
                    keepMoving = true;
     private void imgPanel_mouseReleased(MouseEvent e)
          System.out.println("called");
          selectedCottage = 0;
          keepMoving = false;
     private void imgPanel_mouseDragged(MouseEvent e)
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               int x = e.getX();
                int y = e.getY();
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          int contHeight = containerComponent.getHeight();
          int subComponentX = subComponent.getX();
          int subComponentY = subComponent.getY();
          int subComponentWidth = subComponent.getWidth();
          int subComponentHeight = subComponent.getHeight();
          if((subComponentX < 0) || (subComponentY < 0) || (subComponentX > contWidth) || (subComponentY > contHeight))
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          return true;
     public boolean withinBounds(int mouseX, int mouseY, Rectangle componentRectangle)
          int componentX = (int)componentRectangle.getX();
          int componentY = (int)componentRectangle.getY();
          int componentHeight = (int)componentRectangle.getHeight();
          int componentWidth = (int)componentRectangle.getWidth();
          if((mouseX >= componentX) && (mouseX <= (componentX + componentWidth)) && (mouseY >= componentY) && (mouseY <= (componentY + componentWidth)))
               return true;
          return false;
     public static void main(String[] args)
          JFrame.setDefaultLookAndFeelDecorated(true);
          //JDialog.setDefaultLookAndFeelDecorated(true);
          try
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          catch (Exception ex)
               System.out.println("Failed loading L&F: ");
               System.out.println(ex);
          FinalTest ft = new FinalTest();
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Image;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class JImagePanel extends JPanel
private Image image;
public JImagePanel(String imgFileName)
     image = new ImageIcon(imgFileName).getImage();
    setLayout(null);
public void paintComponent(Graphics g)
    g.drawImage(image, 0, 0, null);
public Dimension getImageSize()
            Dimension size = new Dimension(image.getWidth(null), image.getHeight(null));
         return size;
public int getImageWidth()
          int width = image.getWidth(null);
          return width;
public int getImageHeight()
          int height = image.getHeight(null);
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}Now the problem I'm having is changing that class to a JFrame, it seems simple but I keep having problems like when it runs from another JFrame nothing pops up. I can do it like this:
FinalTest ft = new FinalTest();
ft.setVisible(false);
JPanel example = ft.contentPanehowever I will probably be marked down on this for bad code. I'm not asking for the work to be done for me, but I'm really stuck on this and just need some pointers so I can carry on with the project. Thanks,
Steve

CeciNEstPasUnProgrammeur wrote:
I'd actually consider your GUI being a JPanel instead of a JFrame quite good design - makes it easy to put the stuff into an applet when necessary...
Anyway, you should set setVisible() to true to make it appear, not to false. Otherwise, I don't seem to understand your problem.That is actually my problem. I am trying to convert this JFrame to a JPanel

How to show the updated content of a JFrame

I have a JFrame with JPanel and JMenuBar (and JMenus). I would like when the user select some item from the menu to change the JPanel of the JFrame, but I can't figure out why this code doesn't work.
Problem is in the methods operation1Performed() and operation2Performed(). What is the command
import javax.swing.*;
import java.awt.event.*;
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     private JFrame frame;
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          panel=getDefaultPanel();
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          JMenu menu=new JMenu("Modul");
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          frame.setVisible(true);

First: New code for one of your methods
     public void operation2Performed() {
          System.out.println("operation2");
          JPanel t_panel=new JPanel();
          JLabel label=new JLabel("Operation2 performed");
          t_panel.add(label);
          frame.remove(panel);
          frame.getContentPane().add(t_panel);
          setPanel(t_panel);
          frame.validate();
From that you can make operation1 work too. What was happening was that you have two panels. You have to remove the one and then add the next one. Then you need to tell the frame that you've made a change.
Cheers,
Rachel

How to change the color of the progress bar and string

Is their anyway to change the color of the progress bar and the string which shows the progress of the bar. The current color of the bar is purple and i would like it to be red or blue so that it stands out against the background of the JFrame i am using. I dont want to change the color of the JFrame
Thanks in advance

import java.awt.*;
import javax.swing.*;
public class ProgressEx {
    public static void main(String[] args) {
        UIManager.put("ProgressBar.background", Color.WHITE);
        UIManager.put("ProgressBar.foreground", Color.BLACK);
        UIManager.put("ProgressBar.selectionBackground", Color.YELLOW);
        UIManager.put("ProgressBar.selectionForeground", Color.RED);
        UIManager.put("ProgressBar.shadow", Color.GREEN);
        UIManager.put("ProgressBar.highlight", Color.BLUE);
        JFrame f = new JFrame("Test");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JProgressBar pb1 = new JProgressBar();
        pb1.setStringPainted(true);
        pb1.setValue(50);
        JProgressBar pb2 = new JProgressBar();
        pb2.setIndeterminate(true);
        Container cp = f.getContentPane();
        cp.add(pb1, BorderLayout.NORTH);
        cp.add(pb2, BorderLayout.SOUTH);
        f.pack();
        f.setVisible(true);
}

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