Width of JPanel on screen

Hi,
For my application I have a jSplitpane with a list on the right hand side and a table on the left. The table is on a jScrollPane and the list is on its own jPanel which is in BorderLayout.
To set the divider location when starting the application I want the divider to be 100 in from the far right edge of the applications frame width. Therfore I have been getting the width of the container that the splitpane is on and setting the divider location to be 100 less than this value.
The method does not work however because the getWidth() method returns the width set before running the application. As I have the splitpane set to be in the centre of the overall container it expands to fill all available space. Therfore is different to what is specified in the code.
My question then is how do I get the width of the overall container on screen (i.e after borderLayout manager has re-sized it to fit)?
Thanks
Alan

Hi
You have to check the actual size after the component has shown on screen. For that you may add window listener on top container of your splitpabe (frame or dialog) and in windowOpened event do actual task. The size at that moment will be the actual size.
Hope this helps

Similar Messages

How to change the width of the variable screen?

Hi
like in the subject mentioned i need to know how i can change the width of the variable screen....
right now i have to scroll if i want to see the right part auf the variable screen...
maybe i can change the width with css?

Hi,
Using CSS specify the table width for the variable screen and include the Css in the header section of the table.

How to change width of table maintenance screen in sm30

Hi,
I want to change the width of table maintenance screen in sm30 of a view. I am trying to change it through screen painter.
But its giving me error - screen or window limit reached. I want to increase the widht to show all the fields at once.
Is there any way for this?
Also, earlier in table maintenance generator of view, there was one step selected. I changed it to two steps and re-generated the TMG. But again Its showing only one screen in sm30.
Kindly tell me which step I have missed out.
Regards,
Seema Naharia

I guess the links below should help in your problem ..
http://www.saptechies.com/how-to-create-table-maintenance-generator/
Window size on SM30
If these do not please tell ..
Regards,
Manthan

Cannot adjust page width to fit to screen size on some PCs with IE

Hello friends, I am using APEX 4.0 and IE9 on different Windows 7 PCs . The page will go way off the screen to the right on one PC, and fits nicely inside the screen on another PC. This problem does not occur in Firefox on any PC. I have used Firebug to try to isolate the template or css settings. Using Theme_4, I have a breadcrumb region and 4 reports regions. One of the reports regions is in column 1 and 3 regions are in column 2. Display point is Page Template Body (3. Items above region content) for all the reports regions. The CSS is #themes/theme_4/css/theme_4_0.css. The template is One Level Tabs (Right Sidebar/Table Based). I tried various width="" using px and % under Edit Page Template-Definition-Body (see below). I tried style="width:800px" within the <div> tags. I have tried various other changes to theme_4_0.css and apex_4_0.css with no visible change to the page width on the obstinate PCs. I reset IE setting and deleted all personal settings on both PCs with no changes to either one, one fits on the screen and the other does not. The issue is that most of our users use IE so most of them will have to live with using the horizontal scroll bar to see the regions in column 2, unless we switch them all to Firefox (not a bad option, except that option works for our users only, we have no control over external browsers). I have tried suggestions from many discussion threads, as this problem has bothered us for quite some time. I know this is an IE problem, but any help is appreciated. Thank you.
"|" represents screen size and "-" is the regions/content for the "bad" PCs.
|----------|----------
The "good" PCs look like this:
|----------|
Peter
<div id="body">
<table class="tbl-body" cellspacing="0" cellpadding="0" border="0" summary="">
<tbody>
<tr>
<td class="tbl-main" width="100%">#REGION_POSITION_02##BOX_BODY#</td>
<td class="tbl-sidebar">#REGION_POSITION_03#</td>
</tr>
</tbody>
</table>
</div>

BD...
I think your concerns are very reasonable. But I want to sort of refocus things a little bit for you here... it's not really a PC vs Mac issue... Rather, it's specifically an Internet Explorer issue. And you might say that this is synonymous...still 98% of the world uses IE, and you would be correct. Hopefully when the final version of IE7 comes out, it will finally embrace some of the modern day OPEN web standards without trying to make too many standards of its own (this is Microsoft, though).
Anyways, in the meantime, I guess we all try to make the best of it. It's very easy to conclude that iWeb is not a viable tool for you, as long as you have something else to "fall back" on. With my limited knowledge of all things HTML, I have no such luxury. Instead, I have put up a notice on my site for IE users only that the site might not look its best on IE....this notice also encourages IE users to use FireFox, which is very much like Safari and will in 99% of cases display your iWeb pages just like you expect. You can see how I've done this here (but you have to surf from IE)... http://blog.dirtdoog.com
I think many people in the PC world understand the limitations of IE. Certainly many don't, but you have to consider your likely audience, I guess. I believe that your website content is king. If your content is compelling enough to your intended audience, they will jump through hoops to see it in its full glory....but you have to make them aware of the problem. That's why I have chosen to take the path that I have taken.
Let me know what you think.

Centering a Jpanel on screen

Hi.
I'd like to center my JPanel to the center of the screen.
I've looked around, however i can't find out how to do it.
I found about setting the "bounds", however that is based on x, y Co-ordinates, and i'd like it to be centered for people on 800 x 600 resolutions, as well as 1024 x 768 (for example).
The other way i found is by:
Login.setVerticalAlignment(JFrame.CENTER);However that results in an error during compilation:
Compiling 1 source file to W:\Java\Covenant\build\classes
W:\Java\Covenant\src\covenant\Login.java:81: cannot find symbol
symbol : variable CENTER
location: class javax.swing.JFrame
        Login.setHorizontalAlignment(JFrame.CENTER);
W:\Java\Covenant\src\covenant\Login.java:82: cannot find symbol
symbol : variable CENTER
location: class javax.swing.JFrame
        Login.setVerticalAlignment(JFrame.CENTER);
2 errors
BUILD FAILED (total time: 0 seconds)So my question is, how can i do it?
Thanks for any help.

I havn't got another setLocation() or setBounds() in my code, and i havn't sized my frame.
The code is:
    public Login() {
        initComponents();
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">
    private void initComponents() {
        Title = new javax.swing.JLabel();
        Username = new javax.swing.JTextField();
        UsernameLabel = new javax.swing.JLabel();
        PasswordLabel = new javax.swing.JLabel();
        Password = new javax.swing.JPasswordField();
        LoginButton = new javax.swing.JButton();
        FooterText = new javax.swing.JLabel();
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Login");
        setBounds(new java.awt.Rectangle(0, 0, 0, 0));
        setLocationRelativeTo(null);
        setResizable(false);
        Title.setFont(new java.awt.Font("Tahoma", 1, 12));
        Title.setText("The Covenant Farm Program");
        Username.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                UsernameActionPerformed(evt);
        UsernameLabel.setText("Username:");
        PasswordLabel.setText("Password:");
        LoginButton.setText("Login");
        LoginButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                logincheck(evt);
        FooterText.setText("You must be a Covenant Member to use this Program");
        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(65, 65, 65)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(UsernameLabel)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(Username, javax.swing.GroupLayout.PREFERRED_SIZE, 102, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(PasswordLabel)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(LoginButton)
                                    .addComponent(Password, javax.swing.GroupLayout.PREFERRED_SIZE, 104, javax.swing.GroupLayout.PREFERRED_SIZE)))))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(18, 18, 18)
                        .addComponent(FooterText))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(57, 57, 57)
                        .addComponent(Title)))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(Title, javax.swing.GroupLayout.PREFERRED_SIZE, 22, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(17, 17, 17)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(UsernameLabel, javax.swing.GroupLayout.PREFERRED_SIZE, 25, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(Username, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(Password, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(PasswordLabel, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(14, 14, 14)
                .addComponent(LoginButton)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(FooterText, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addContainerGap())
        pack();
    }Thanks for the help :)

Need to Increase the width of the selection screen

Existing scenario is that the selection screen contains 4 parameters in a row and
it has to be increased to 6.When i try to include the 2 parameters on the same row it
says that the max width is 79.I can try and reduce the width of each parameter but it
still cannot accomodate the 2 new parameters.
Can someone please give me some tips on how to go about it.

Hi Naveen,
SAP has 80 columns max for display on the screen.
if u want to accomadate more than six parameter the reduce the visible length.
example.
SELECTION-SCREEN : BEGIN OF LINE.
PARAMETERS : p_reg1 TYPE char20 VISIBLE LENGTH 12.
PARAMETERS : p_reg2 TYPE char20 VISIBLE LENGTH 12.
PARAMETERS : p_reg3 TYPE char20 VISIBLE LENGTH 12.
PARAMETERS : p_reg4 TYPE char20 VISIBLE LENGTH 12.
PARAMETERS : p_reg5 TYPE char20 VISIBLE LENGTH 12.
PARAMETERS : p_reg6 TYPE char20 VISIBLE LENGTH 12.
SELECTION-SCREEN : END OF LINE.
also see to it that u dont cross the limit of 80 columns
while writting the comments
example
SELECTION-SCREEN : <b>COMMENT 4(10)</b> text-006,
: POSITION 35.
PARAMETERS : p_sumrep RADIOBUTTON GROUP rad1 .
SELECTION-SCREEN : <b>COMMENT 38(10</b>) text-048,
<b>Please Reward Points & Mark Helpful Answers</b>
To mark Helpful Answers ;click radio Button next to the post.
RadioButtons
<b>o</b> Helpful Answer
<b>o</b> Very helpful Answer
<b>o</b> Problem Solved.
Click any of the above button next to the post; as per the anwers
<b>To close the thread; Click Probelm solved Radio Button next to the post , which u feel is best possible answers</b>

How to increase size of individual column width in the filter screen of WAD

Hello all ,
Have a web application built in WAD. I have ran it in portal and want to put the filter on material.When the filter screen displayed , I selected the filter value on material and added it to selections. I am not able to see the full description of the material due to the width of the column is less which is hided to drag. Do we have any option to increase the individual column width in filter screen?
Request you to respond .
Regards,
Lakshmi.

Hi Vijay,
Iam doing fine .Thank you.
We tried different options in WAD . still it is not working . once the filter screen displayed in your report result (Portal) ,it will show you two tabs screen , will select and transfer the selections from left had side to right hand side.iam able to drag the left tab but not the right one due to iam not able to see the full description of info object.By dragging we can increase the full screen size but not the individual tab size.
Regards,
Lakshmi.

Keep max width of JPanel; allow changes to height.

Hey guys, quick question (hopefully): I am populating a JPanel with other panels and I want the widths of the inner items to always be the maximum width available inside the container. The height changes dynamically throughout the use of the program. I am using grouplayout. I have tried setting the preferred size but I run into two problem:
1. Often the sizing is in the constructor, so setting the widths to getMaximumSize() returns 0.
2. Setting size requires changes to both width and height; how do I change one permanently while allowing the other to change dynamically.
Thanks
Edited by: Crystal_Pepsi on Jan 26, 2010 10:04 AM

There should never be a need to explicitly set sizes with group layout. Post an example of what you are doing and explain the deficiency in the resulting product.

Java x-meta-x width of a monitor screen

hi my company use x-meta-x to configure the width on the screen. i am not familiar with x-meta-x at all. i just want to know is there anyway i can get the width of a screen size. currently, i use tookit.getscreensize(), however this return me x-meta-x width which is much bigger than my monitor width. does anyone know how to get the correct monitor width.
thanks

yaliu07 wrote:
i am not sure what is a viewport, but my screen size is much larger than my single monitor physical display.
thanksThat's a viewport: you only see a portion of the displayable screen.
You might see if the GraphicsMode will help. Look at the GraphicsDevice object in the API, there is a nice example include in the API preface to the object.

How to set Width of a JPanel?

I am overwirting paintComponent(Graphics g) method to
draw some g2D in a JPanel.
I want the drawing processing shown on screen (not flashed out after drawn because it is VERY SLOW).
So that I CAN NOT use setsize() or setBound() because to change JPanle.width because this is NOT what I wanted(the graphics is shown AFTER is drawn).
Everytime I call paintComponent(), the width of JPanel is changed.
My question is : How can change JPanel.width without calling method like setsize() or setBound() .
Thanks a lot!!

My code too large, I just show some idea here:
class caller (){
myPanel p;
Graphics2D g2 = (Graphics2D)p.getGraphics();
//I nee to increase the p.width before call my_paint
//I CAN NOT use setsize() or setBound()
//because I want show the drawing process
//on screen( and that is fast)
p.my_paint(g2); // how to set p.width ??
public class myPanel extends JPanel
public void my_paint(Graphics2D g2)
//Do my drawing here ,
// I need to draw thousands of Line2D.
public void paintComponent(Graphics g){
Graphics2D g2 = (Graphics2D)g;
my_paint(g2);

Saving an off screen Swing JPanel to a BufferedImage

First, thanks for reading this. I have read through almost the whole forum and tried countless deviations of examples given here, but to no success.
The situation is that from an Java 1.3 Applet, I am creating the ability for a user to create a simple graphic using standard Swing JTextArea components. This gives him/her the ability to place text arbitrarily on an JPanel. This works fine. The problem comes when the user wants to preview the image with the parametes replaced in the JTextAreas.
We are generating GIF files after the user puts in the data. The problem occurs when we create an off screen JPanel with new JTextAreas with the parameters replaced with the test data filled in. We seem unable to create a BufferedImage from the un-shown JPanel.
I have tried putting the JPanel in a JFrame and showing it before I call paint/print, etc. The only thing that seems to happen is that the JPanel background color is rendered to the GIF file, but not the JTextAreas on the JPanel. I have sucessfully written directly to the Graphics of the JPanel using drawString and generated a GIF, but that does not accomplish our goal.
Any help would be appreciated. A test routine is included to give you the code. TIA.
Kurt
void test() {
int height = 400;
int width = 400;
JFrame jf = new JFrame();
jf.setBounds(0, 0, width, height);
JPanel p = new JPanel();
p.setBackground(Color.blue);
p.setSize(width,height);
JTextArea ta = new JTextArea();
ta.setBackground(Color.black);
ta.setForeground(Color.red);
ta.setText("This is the text to set");
ta.setColumns(10);
ta.setRows(3);
ta.setEditable(true);
ta.setEnabled(true);
ta.setVisible(true);
p.add(ta);
p.validate();
jf.getContentPane().add(p);
jf.validate();
saveToFile(p);
// This was taken and slightly modified for the AnimagedGifEncoder
void saveToFile(JComponent source) {
int w = source.getWidth();
int h = source.getHeight();
int type = BufferedImage.TYPE_INT_RGB;
BufferedImage image = new BufferedImage(w, h, type);
Graphics2D g2 = image.createGraphics();
source.paint(g2);
g2.dispose();
AnimatedGifEncoder gif = new AnimatedGifEncoder();
gif.start("D:/tmp/gifs/mygif.gif");
gif.setDelay(1000);
gif.addFrame(image);
gif.finish();

Your approach "putting the JPanel in a JFrame and showing it before I call paint/print" was ok, but it must be done in another thread, this sample is doing a similar job.
You will see that when the print dialog is shown, the frame is fully visible with the button,
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.print.*;
public class PrintF extends JFrame
     JPanel pan = new JPanel();
     JButton pri = new JButton("Print");
     JButton b1 = new JButton("The Click");
public PrintF()
     super("This is a full frame print test");
     setBounds(1,1,500,350);
     addWindowListener(new WindowAdapter()
    {     public void windowClosing(WindowEvent ev)
               dispose();
               System.exit(0);
     getContentPane().add("Center",pan);
     pan.setBackground(Color.white);
     pan.add(new JLabel("Label 1"));
     pan.add(pri);
     pri.addActionListener(new ActionListener()
     {     public void actionPerformed( ActionEvent e )
               TheT t = new TheT(b1);
//               printIt();
     setVisible(true);
public class TheT extends Thread implements Printable
     JFrame frame = new JFrame("The printed frame");
public TheT(JButton b)
     frame.setBounds(50,50,400,350);
     frame.getContentPane().setLayout(null);
     frame.getContentPane().add(b);
     b.setBounds(20,80,150,30);
     start();
public void run()
     frame.setVisible(true);
     printIt();
     frame.dispose();
private void printIt()
     PrinterJob pj = PrinterJob.getPrinterJob();
     PageFormat pf = pj.defaultPage();
     pf.setOrientation(pf.LANDSCAPE);
     pj.setPrintable(this,pf);
     if (pj.printDialog())
          try
               pj.print();
          catch (Exception e){}
public int print(Graphics g, PageFormat pf, int pi)
                                            throws PrinterException
     if (pi > 0)
          setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
          return Printable.NO_SUCH_PAGE;
     setCursor(new Cursor(Cursor.WAIT_CURSOR));
     g.translate((int)pf.getImageableX()+2,(int)pf.getImageableY()+2);
     try
          Robot     r     = new Robot();
          Rectangle rect = frame.getBounds();
          Image     image = r.createScreenCapture(rect);
          g.drawImage(image,2,2,null);
     catch(AWTException awe)
          System.out.println("robot excepton occurred");
     return(Printable.PAGE_EXISTS);
public static void main (String[] args)
     new PrintF();
}       Noah

How to restrict the width in selection screen,

HI all,
Can anyone help me in solving this issue. i am not able to remove the horizontal scroll bar in my selection screen. i gave line-size as 200 if i reduce it the entire program is getting colapsed. is there anyother way of restricting the width of the selection screen.
Advance Thankz,
Regards
Guhapriyan

Hi Guhapriyan,
If your (horizontal) scrollbar is displaying, then two things need to be considered:
1. The width of the screen (and in some manner the screen resolution).
2. The total length of number of controls (e.g. inputfields), texts and spaces between them.
In case of too many controls you'll need to understand, that dispite SAP shows texts on your screen in a proportional format, actually internally it uses a fixed format. Therefore a text of 132 characters long showing on a 80 'column' width screen will show almost all the text AND a horizontal scrollbar.
To solve it you need to keep track of lengths and positions.
Important: The standard width of a selection screen is 80 characters. You must modify your 1000 screen via transaction SE80 (and prevent regeneration).
Regards,
Rob.

Screen wide slideshow with flexible page width?

I managed to place images that adjust to any browser width that are full screen wide, now I would like to know if I can achieve the same but with a couple of images into a slide show.
I don't mean a full screen slideshow only about 350 px height in the middle of the page.

i've been trying to find out if this is possible too. my only thought is for now until they have full width slideshows that you would have to create a gif that changed the photos for you. i haven't tried it yet because i was hoping to find a better answer but i think that's the only way to accomplish this currently

Background, screen-width and screen-height

can you help me a bit guys? how shall I create a movie where
the background will be always 100% of screen-width and 100% of
screen-height but the rest of the movie will be not affected by
screen resolution - it means will be of fixed size.
example: have a photo in front (200x300px) which needs to be
always of that size and the background will resize according to the
screen resoluiton ...
it is even possible? thanks for any help ...

Hello,
Could you please try unchecking the sticky footer option from Site properties and then check if you face the same issue or not?
Regards,
Sachin

Need a scroll and fit to width in screen on presentation mode

I am using wireframe presentation in indesign, in web page design some pages are height is going high length, that time presentation mode shrink the page, that one is not good. that time we need some customisation for particular page width need to fit screen, and rest of things need scroll down. This feature really important for web page designer.

You'll need to make a feature request here:
Adobe - Feature Request/Bug Report Form
Normally, Adobe product managers don't view the forums. This is a user forum. They do read feature requests.

Width of JPanel on screen

Similar Messages

Maybe you are looking for