Swing/AWT/SWT :: JPanel In JFrame - Components Do Not Appear

Apr 4, 2014

I trying to replace original (and empty) JPanel in JFrame with my own made one, components does no appear right, when I pass the mouse first button appears:

MainViewClass:
...
private void initComponents() {
...
MenujPanel = new MenuSuperior();
MenujPanel.setBorder(
BorderFactory.createTitledBorder("Dados Pessoais"));

[Code] .....

Here is the video:

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Swing/AWT/SWT :: Disabling JPanel And All Its Components?

Oct 8, 2001

Let me explain by simplifying the GUI to a simple frame in which I have a JCheckbox and a JPanel mypanel.mypanel has a Textfield tf,JComboBox cmb as it's components.So now if I deselect the JCheckbox, all the components in the mypanel should be disabled. I used a code like:

[code]mycheckbox.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
if(mycheckbox.isSelected())
mypanel.setEnabled(true); else
mypanel.setEnabled(false); } });[code]

but the components inside the panels are not disabled. In my actual program I have a large number of different kinds of components in mypanel.So disabling/enabling each of them on each actionPerformed of the mycheckbox will be laborious. Isn't there any way by which I can disable/enable the mypanel to disable/enable all the components in it?

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Swing/AWT/SWT :: Resize JPanel Vertically Instead Of Inner Components?

Jan 10, 2014

My JPanel when adding components to it will never make its self larger but it will make my components inside smaller even though I have set the minimum and preferred sizes for those components? I am using the GridBagLayout for my layout manager as I am trying to get used to it.

package manning;

import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridBagConstraints;

[code]....

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Swing/AWT/SWT :: JPanel Inside A Jframe?

Apr 9, 2014

I have a Jframe and i want to add inside 4 different jpanel.This is easy.

what is difficult is how can i change them dynamically with 4 other new jpanels and 4 other new jpanels?

I have try with BorderLayout but not working.

It's a wizard like but not the same.

I have a jpanel with jbuttons jpanel with a jtable jpanel with textarea and jpanel with jlabels. All this have to change with other 4 jpanels, where to look?

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Swing/AWT/SWT :: Why Jpanel Is Not Inserted In Jframe

Apr 4, 2014

I pick this code from Head first Java

package GUI;
import javax.swing.JFrame;
import javax.swing.JPanel;
import java.awt.Graphics;
import java.awt.Color;
public class gui5 {
int x=0;
int y=0;
public static void main(String... x) {

[code]...

but just a Jframe is appearing no Jpanel no green color circle?What is wrong with code

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Swing/AWT/SWT :: Cannot Instantiate JPanel And Add It To JFrame

Mar 27, 2014

I am try to do an application based in multiples JFrames, each one with its particular responsibilities, and use one JPanel as a menu with buttons that connect one JFrame to another, But this menu is instantiated at run in view (layout made by netbeans) the Main Jframe appears with its internal JPanel, but the instantiated JPanel does not appear or does not show it's buttons. (notice only run method in the second class):

JPanel Menu that will be used in all alone JFrames of application:

public class MenuSuperior extends javax.swing.JPanel {
public MenuSuperior() {
initComponents();
} private void initComponents() {

[Code] .....

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Swing/AWT/SWT :: Automatic Resizing Of JPanel In JFrame?

Jan 29, 2015

I have created a JFrame that contains 3 JPanel.

My problem is, when i clicked in the bouton to expand the Frame,the 3 JPanel are fixed and do not expanded with the Jframe.

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Display Image On JLabel Or JPanel With Respect Of Components Size?

Mar 27, 2015

i have very critical problem in my collage project i have try many code but still i cant solve this problem, i want to display image on jlabel or jpanel with respect of components size without use of drawimage method

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Resize JFrame To Show Components

Apr 9, 2014

I have the following project:

Java Code:

package boxmatrics;

import java.awt.BorderLayout;
import java.awt.FlowLayout;
import javax.swing.JFrame;

public class BoxMatrics {
public static void main(String[] args) {

[code]....

Why I have to resize the window(JFrame window) manually, with the mouse, in order to see the components?Where do I need to call repaint(); ?

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Why JFrame Not Showing Components Such As JComboBoxes

Sep 4, 2014

my JFrame is not showing anything, (Perhaps test it in your own IDE on your own PCs/laptop)

// Project: RestaurantBillCalculator.java Calculates a table's bill.
 
// Import statements for different classes
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.JComboBox;

[code]....

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When Close Out Singleton JFrame And Then Open It Again - Components Are Gone

Nov 30, 2014

I made UpdateInmateDisplayer a Singleton so that I could access it from the private class ButtonHandler. It works to display the first inmate's number on the screen but when I close out the window and click the Book Inmate button in CurInmatesDisplayer again, it only shows a blank window. I've tried adding the components again from the ButtonHandler in CurInmatesDisplayer but it doesn't work.

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Scrollpane Scrollbars To Entire Jframe When Resizing / Adding Components

Jul 23, 2013

I am trying to add scrollbars to my frame containing many different components and appearing when user resizes the window with the mouse adds pictures and admin of this online application adds labels or other components.

I want scrollbars to appear when the frame  is resized and has components you don't see under so you can scroll down.
 
If I have for example this code, how i add the scrollbars when i make frame smaller ?
 
public class Test extends JFrame {
private JPanel contentPane;
/**
* Launch the application.
*/
public static void main(String[] args) {
   EventQueue.invokeLater(new Runnable() {

[Code] ....

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JPanel Not Showing Up In JFrame

Apr 5, 2014

I'm attempting to add a Jpanel in a JFrame but it isn't working out.

import javax.swing.JFrame;
import javax.swing.JPanel;
public class stepone {
public static void main (String[]args){
JFrame frame = new JFrame("CSC LAB 12");
JPanel colorJPanel = new JPanel();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

[code]....

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Resizing JPanel And JFrame At Same Time

Jan 7, 2015

I am trying to develop a GUI through hard coding. I encountered a challenge:

I created a Jframe and onto this I added a JPanel. I assigned thge flow layout manager of the frame to null(because i want to do the positioning of my components manually)

The program is running perfect except when i click the maximise button of the frame, the JPanel does not change its size.

With Netbeans IDE - i found that the propert is Horizontal Resizable propert. I have tried to look for the method but in vain.

I am trying to develop identical things from hard coding and in drag and drop environment. so with drag and drop its easy but in hard coding how do I work it out?

Here is the code :

public class JPanelDemo {
JFrame frame;
JPanel panel;
JPanelDemo(){
createFrame();

[Code] ....

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Put A Button On Jpanel In Jframe With Background

Jan 2, 2014

I am trying to put a button (in a container) on a jpanel in a jframe with a background but the container is covering up the background with white color.Below I have an excellent SCCE:

Java Code:

package drawFramePackage;
//drawFramePackage
// Author: Nathan Nelson
import javax.imageio.ImageIO;
import javax.swing.JButton;
import javax.swing.JPanel;
import java.awt.Dimension;
import javax.swing.JFrame;

[code]...

Basically I just need to set the containers background to transparent.

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Integrating Maps In JFrame Or JPanel

Nov 1, 2013

Is there any way to Integrate google or other maps in JFrame or JPanel with panning and zooming functionality. ?

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Swing/AWT/SWT :: Why Must All Components In A Container Have The Same Alignment

Dec 10, 2014

I have a JPanel with vertical BoxLayout. It contains four components. I set the JPanel to LEFT_ALIGNMENT, which has no effect on its components. I set the first component to LEFT_ALIGNMENT, which has no effect. Only after I have set all four components to LEFT_ALIGNMENT do any of them align properly.

This suggests that it is impossible to have varying alignments in a container. They must all be the same alignment.

I accept that this is just the way things are: "Java works in mysterious ways." And I'm sure that it is possible to work around this limitation by stacking boxes that themselves have different internal alignments.

But I still wonder what in the world was going on in the minds of the Java developers. Is there a rational reason for this oddity?

This raises my most serious criticism of Swing: the hidden gotcha. Swing is a tangled mess of cross-connecting requirements that are impossible to divine by simple inspection of the documentation. If you want to use, say, a JRadioButton, it's not enough to study the documentation on JRadioButtons; you must also consult lots of documents for which there is no obvious connection to JRadioButton other than it being part of Swing.

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Swing/AWT/SWT :: How To Serialize Java Components

Mar 9, 2015

I am trying to send a JPanel object to the server. While doing so I get the error -

java.io.NotSerializableException: javax.swing.filechooser.WindowsFileSystemView
at java.io.ObjectOutputStream.writeObject0(Unknown Source)
at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source)
at java.io.ObjectOutputStream.writeSerialData(Unknown Source)
at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)

[code]....

How to fix this error?

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Swing/AWT/SWT :: Auto Resize Components

Sep 5, 2014

I have swing UI designed and I want the components to resize when the frame is manually resized. The design is as shown in the fig Project UI.jpg

The panel 4 and panel 5 will change their contents according to the list item clicked. Panel 4 just has text area but panel 5 a panel with numerous components as label, combo box, text field,check box will be present.Now if the frame resizes, I won't all the components to resize according to the frame size.

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Swing/AWT/SWT :: What Are Parent And Child Components

Aug 11, 2014

I keep hearing these two term when it comes to painting in Swing, however, I'm not sure which is which. To my understanding is that the child components are the ones that already exist on screen (could be a JButton, JFrame, or custom painting) . and the parent components are the one to be added/drawn next. (hence, if we override the paintChildren() method when painting, the components that were already on the screen don't appear any more).

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Swing/AWT/SWT :: Aspect Ratio Of Components

Aug 18, 2011

Any good way to keep a certain aspect ratio of a Component, when the Container is resized?

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Swing/AWT/SWT :: Panel Not Showing Added Components

Apr 27, 2014

My panel named panelIncomeInfo are not showing the components that I have added.

public class PayrollGUI {
private JPanel panelIncomeInfo = new JPanel ();
private JPanel panel = new JPanel ();
private JPanel panelPayCheckInfo = new JPanel ();
private JButton close = new JButton ("Close");

[Code] .....

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Painting In Swing - Parent And Child Components?

Aug 11, 2014

I keep hearing these two term when it comes to painting in Swing, however, I'm not sure which is which. To my understanding is that the child components are the ones that already exist on screen (could be a JButton, JFrame, or custom painting) . and the parent components are the one to be added/drawn next. (hence, if we override the paintChildren() method when painting, the components that were already on the screen don't appear any more) ....

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Swing/AWT/SWT :: Progress Bar Dialog Sometimes Doesn't Display Components

Mar 7, 2014

I wish to display a progress bar during a lengthy file translation process. When I created a ProgressBar class to do this and tested it with a short test program, it seemed to work fine. But when I add my ProgressBar class to a package containing various other classes, put that package in a jar file, and then execute the class using the progress bar from a menu in my main program, the frame of the progress bar shows up with the appropriate caption but the JLabel, JProgressBar, and JButton are not displayed. I have gone over my code numerous times and checked that the ProgressBar class constructor is getting the proper arguments.

// package gov.nasa.jpl.ephemeris;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
/**
* Progress bar with message text above the bar and a Cancel button below it
*/
public class ProgressBar extends JFrame {
private boolean _cancelled = false;
private JProgressBar _progressBar = null;

[Code] ....

I have also been wondering whether I need a separate instance of the border for each panel, or whether I can just create one instance and use it for all three panels.

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Swing/AWT/SWT :: Screen Resolution - Components Adjustment And Alignment

Mar 30, 2015

I'm working on Ubuntu with resolution 1600*900; I used MigLayout to place the components of the application; but when I go with higher resolutions,components adjustment and alignment are not up to the mark.

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Swing/AWT/SWT :: Can't Get Gridbag Layout Components To Display As Required

May 4, 2014

I have quite a specific view for how I want my components layed out. No matter what I try I can get them to display how I want! I'm using three JPanels. There's a main panel that goes inside the tabbed pane. This main panel contains two other panels. The First panel is a gridbaglayout panel, with labels on the left column, and components on the right column. The second panel is underneath the second, and contains a label, and a button beneath it. THis uses a basic box layout, with one component per line. The label doesn't always appear (depends if a component is changed). With everything showing, this is how it looks so far:

However, I want the Labels on the left of the pane. The right hand column should be aligned horizontally and have more space from the labels. Ideally I'd like a gap between the last label/checkbox and the Note label.

This is my current code for the panel/s inside the tabbed pane window.

videoPanel = new JPanel();
applyVidBtn = new JButton("Apply Settings");
applyVidBtn.setVisible(false);
warningLbl = new JLabel("Note. Applying these settings causes a program restart.");
warningLbl.setVisible(false);

[Code] .....

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