Swing/AWT/SWT :: Replacing Regular Writing Cursor For System Mouse Pointer When Hovering JTextField?

Apr 23, 2015

When I hover over a JTextField, I want to change the writing cursor from this to the system regular mouse pointer. How could I do it?

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Getting Name Of Component For Mouse Cursor Position?

Nov 4, 2014

I am developing an application where blind person can interact with computer i have completed the part where computer responds as per command given by user.The part where i am stuck is i want to give voice feedback as user moves the curser for example if mouse is on d drive then user should get feedback that its d drive....i want to do it for whole windows ...

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Change Mouse Cursor In Java

Feb 24, 2014

I decided to change the mouse cursor based on the theme of the game. This is the code that I wrote for the declaration of the cursor:

ImageIcon imageIcon = new ImageIcon ("cursor / cursor.gif");
Image img = imageIcon.getImage ();
Toolkit t = Toolkit.getDefaultToolkit ();
Cursor cursor = t.createCustomCursor (img, new Point (0,0), "cur");
this.setCursor (cursor);

Having to click on different JButton in the menu of the game, a few screens later, I have to manage something in particular, such as determining the point of clicks that allows the action to take place?

In particular I would like to change the point of hotspots. The size of 136x163 is cursor.gif

Image - TinyPic - Servizio di hosting d'immagini, condivisione immagini & hosting di video gratuito

As you can see in the image I want to create the point of hotspots in the red dot of the image. How should I do to pass the correct coordinates in Point?

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Make Mouse Cursor Visible On Movement

Mar 25, 2014

I've been creating a digital clock using Java, and have made the mouse cursor invisible after a set period of time (40-seconds) and had the thought to make it visible again if mouse was moved.

Here's the code that makes it invisible:

ActionListener mouseTimeout = new ActionListener() {
public void actionPerformed(ActionEvent e) {
setCursor(blankCursor);
}
};
/* Make mouse cursor disappear after 40 seconds */
Timer mTimeout = new Timer(40000, mouseTimeout);
mTimeout.start();

And here is what I have so far for making it visible again:

MouseMotionListener mouse = new MouseMotionListener() {
@Override
public void mouseDragged(MouseEvent e)
{
}
@Override
public void mouseMoved(MouseEvent e)
{
}
};

I have tried using "setCursor(DEFAULT_CURSOR)" but NetBeans says that it "cannot find symbol" .....

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Writing A Program For System Of Linear Equations

Sep 22, 2013

So i was assigned to write a program that would print the answer to the system of two linear equation. the form of ax+by=c and dx+ey=f..I wrote this program, but it is incorrect since I tried it out on my terminal and I keep getting incorrect values.

import java.util.Scanner;
public class Quest4 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);

[code]....

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Swing/AWT/SWT :: Replacing Old With New Data When Submit Button Clicked For Second Time

Mar 11, 2014

I have created a gui which accepts username in the text field and once clicking on submit button it fetches user details and throws it on gui via JTable.

But when i click submit for the second time using different username the background process goes well and good the vector that i pass to jtable changes with new data but the values in gui still contain the old data.

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Swing/AWT/SWT :: Code Prevent Cursor From Moving When Inside A Cell Of JTable

Jun 24, 2014

Tried creating a simple sample but all works as expected.

The following code prevents the cursor from moving when inside a cell of a JTable.

public void keyPressed(KeyEvent e) {
if ( (e.getKeyCode() == KeyEvent.VK_KP_LEFT) || (e.getKeyCode() == KeyEvent.VK_KP_RIGHT)
|| (e.getKeyCode() == KeyEvent.VK_RIGHT) || (e.getKeyCode() == KeyEvent.VK_LEFT) )
{
//Do nothing
e.consume();
}
}
});

When editing a cell, the existing code would use the right/left cursor keys to move from cell to cell as opposed to from character to character when editing a cell. I planned to override the functionality by tossing in the above code as a test to see if it stops the functionality before I override it.

After placing in the above code, the above functionality no longer occurs, but now the cursor moves within the cell as I wanted which is to move from character to character instead of cell to cell. Its great it works, but it really shouldn't. Essentially the default behavior has been restored when it should have really disabled the left/right keys.

I assume there is some underlying class someplace that is doing something to affect the behavior. Since a sample can't be provided I am wondering in what scenarios would the e.consume() restore default functionality?

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Swing/AWT/SWT :: Null Pointer Exception When Retrieving Data From Table

Mar 31, 2015

I am trying to export data from a jtable to a pdf report but every time i try running the code it gives me this exception:

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at GUI.QC_receiving_book.printButtonActionPerformed(QC_receiving_book.java:309)
at GUI.QC_receiving_book.access$600(QC_receiving_book.java:26)
at GUI.QC_receiving_book$7.actionPerformed(QC_receiving_book.java:165)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)

[Code] ....

I tried avoiding the null exception by using the if statement but it didn't work. The row I choose from the table is full meaning there are no empty attributes. and all the data are imported from a mysql database to the table as String so there can't be any casting errors.

This is the part of the source code with the problem and i will also post the printing method. I tried debugging the class and when stepping into the first if statement it opened the jTable.java file and pointed at the getSelectedRow() method and this sentence "variable information not available.source compiled without -g option"

private void printButtonActionPerformed(java.awt.event.ActionEvent evt) {
if(samplesTable.getSelectedRow() >= 0){
int row = samplesTable.getSelectedRow();
System.out.println(row);
for(int x=0;x<samplesTable.getColumnCount();x++){
String value = samplesTable.getModel().getValueAt(row, x).toString();

[Code] ....

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Swing/AWT/SWT :: Adjusting Size Of Box With Mouse

Oct 16, 2014

I'm running the code below which compiles ok using latest version of Java and on Sublime. The problem when it complies the output screen is blank and I can only see the text by adjusting the size of the box with my mouse - and then it colours in black. Code and screenshot below. Is there something wrong with the paint/graf part of the code?

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class BackArray extends JFrame {
int store[] = {2,6,4,8,34,67,19,99,10,12,89,68,45,37};
int xcoord = 100;
boolean firsttime=true;

[code]....

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Swing/AWT/SWT :: Right Button Event Mouse In Jtable

Feb 18, 2014

I'm trying to can make right button event to show a popup of copy/paste in a jtable but I put these code and doesn't works:

public class UI implements ActionListener, DocumentListener, MouseListener{
private JFrame ventana;
private JTable table;
private JPanel panel;
private JScrollPane tableScrollPane;

[Code] .....

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Swing/AWT/SWT :: Paint Application - Mouse Events In Same Class

Apr 15, 2015

I have my paint application, i use the following mouse event to draw my shapes (mousePressed, mouseReleased, mouseDragged). Now after the user paint a circle for example, he must be able to drag the shape; to be able to do this. i think i must again implement the different mouse Events. I have done it and the drag is not working. How can i achieve this. can we implement multiple (mousePressed, mouseReleased, mouseDragged) in the same java class??

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Swing/AWT/SWT :: Wait For Mouse Click Before Running While Loop

Oct 7, 2013

I've got the game working just fine, but I don't like the way it starts playing the second you hit the "Run Last Class" button in Eclipse, and would really like to have the game start, then wait for the user to click a button before running the core WHILE loop. Everything is implemented in a single class, and here is the playGame method that starts the ball moving:

private void playGame(){
while (!gameover){
moveBall();
checkForCollisions();
}

All I want to do is pause before the WHILE loop until the users clicks the mouse button, nothing fancier than that! I've done quite a bit of reading, and it looks like ActionEvent may be the way to go, but I'm not clear on how to use it correctly in this scenario.

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Java Swing - Mouse Over To Highlight Desktop Icon

Jul 7, 2014

When we place the mouse cursor over an desktop icon it will get highlighted. How can I achieve this through java swings?

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Swing/AWT/SWT :: Autocomplete In JTextField

Apr 2, 2014

I have been reading several suggested solutions for implementing autocomplete for a JTextField. However, the documentation is a bit confusing to me. It seems like they mostly require switching to a JComboBox. Can I or can I not continue to use a JTextField and implement an autocomplete feature? I also saw what I thought was a built-in autocomplete "decorator" for swing objects (although it was not clear if it can be used for JTextField) but most of the implementations seem to start from scratch. Any simplest way to implement this (assuming those 2 conditions are not mutually exclusive)?

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Swing/AWT/SWT :: Jscrollpane Not Shown Until Adjust Window Size With Mouse?

Nov 16, 2014

So for a test i have a small array set as a jlist which is the contents of my jscrollpane, and it appears as if nothing is there until i adjust the window size by dragging it out or in... whats going on?

Here is the full code

import java.awt.BorderLayout;
import java.awt.ComponentOrientation;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;

[Code] ...

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Swing/AWT/SWT :: Detecting Mouse Click Inside A Box Painted In Frame?

Feb 9, 2015

In the method mouseClicked(MouseEvent me) the co-ords of the click are obtained.

* if they are within the confines of the rectangle rect, console output System.out.println("inside box") is displayed
* in either case the click co-ords are displayed in the console

I'm getting the co-ords of the mouse clicks but no message when the click is inside the box

import java.awt.*;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
/*
Experiment 04 was successful. So now (Experiment 05) I must try and see if I can identify mouse clicks that occur within the rectangle.
*/

public class AFrame extends Frame implements MouseListener {
ARectangle rect;
public AFrame(ARectangle rect) {

[Code] ....

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Swing/AWT/SWT :: Continuous Flash When Moving Mouse Next To Text Of Button

Jan 27, 2015

Just run the following code and move the mouse next to the text of the button and you will see exactly what I am talking about. Any way to prevent this continuous flash?

import java.awt.Dimension;
import javax.swing.JButton;
public class GUI {
public static void main (String[] args) {
javax.swing.JFrame frame = new javax.swing.JFrame();
javax.swing.JPanel panel = new javax.swing.JPanel();

[Code] .....

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Swing/AWT/SWT :: Scrolled Composite Doesn't Scroll By Mouse Wheel

Sep 7, 2014

Mouse wheel is working properly on macosx but not working on windows.

Here is my layout structure, i implemented mousewheel listener but its not triggering tho.

And my scrolledcomposite declaration:

final ScrolledComposite scrolledComposite = new ScrolledComposite(mainComposite, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
scrolledComposite.setExpandHorizontal(true);
scrolledComposite.setExpandVertical(true);
scrolledComposite.setBackground(SWTResourceManager.getColor(SWT.COLOR_MAGENTA));

final Composite listComposite = new Composite(scrolledComposite, SWT.NONE);
GridLayout layout = new GridLayout();

[Code] ...

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Swing/AWT/SWT :: Inputting One Letter Into JTextField

Mar 9, 2014

I'm writing a java program in eclipse of a tic-tac-toe game. I have to create it using JTextField's only I'm having trouble where the JTextField will only accept one letter and will only accept X and O is there any particular way to do this I started off with this piece of code

String text=tf1.getText();
if(text.length()>1) {
System.out.println("this is not allowed");
tf1.setText("");

But it doesn't work so is there something I'm missing....

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Swing/AWT/SWT :: How To Get Data From JTextField Over To JTable

Jun 20, 2014

I am trying to get the data entered in a JTextField into a JTable but not clear on how. The LeftPanel is where the button is located and the RightPanel is where the JTable is. I want the actionPerformed to update the row of the JTable but I can't figure out how. There is another class that controls the GUI but did not think it was necessary to include. Also, I am aware that I am getting an error at the addRow line, can't seem to alleviate it.

public class LeftPanel extends JPanel {

private static final long serialVersionUID = -2311952438693382407L;
private RightPanel rPanel;
public LeftPanel(){
Dimension size = getPreferredSize();
size.width = 250;
setPreferredSize(size);

[code]....

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Swing/AWT/SWT :: How To Make JTextField Editable

Jul 10, 2014

I'm having a hard time finding out the way to make JTextField editable. In what circumstances it can be disabled to write? [even the text in the field can't be selected, not to mention being uneditable. I did the followings to make it editable.

1. In its Properties panel(frame or whatever), checked the "editable" item.
2. In the code I made it run the code below :

void makeFieldsEditable(Boolean flag) {
Left_Name_field.setEditable(flag);
Left_Name_field.setEnabled(flag);
...
}

Is it related with the properties of the control(JTextField)'s surrounding panel, or even the largest containing frame? Using Netbeans ....

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Swing/AWT/SWT :: How To Get One Value From JTextField To Show In Another Classes

May 17, 2014

I want the text that the user inputs into the JTextField in the user input panel to be what shows up in the JTextField in the totals panel.

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Scanner;
import javax.swing.*;
import javax.swing.border.TitledBorder;

[Code] ......

I know that I will need to take advantage of the get and set methods, could I get an example of this? How to write the code.

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Swing/AWT/SWT :: Unwanted Echo Of JTextField

Oct 29, 2014

I recently began writing a much larger program than I will show. I have boiled the problem down to this SSCCE.

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
class TextButton extends JRadioButton

[Code] ....

What i wanted was a JRadioButton with no label carrying around a JTextField. When I added a restore configuration feature in the real program, i found that the text destined for the JTextField was being echoed into the JRadioButton.

Perhaps it is obvious but i sure don't see what I am doing wrong. I am using Java 1.7.0 for development if that makes a difference.

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Swing/AWT/SWT :: Making JButton That Switches Text From 2 JTextFields On Click With Mouse

Aug 6, 2014

I have made a window using JFrame and on my JPanel I have added 3 components: 2 JTextFields ("field1" and "field2") and inbetween them a JButton ("switch"). My goal is to switch the value of field1 to field2 and vice versa when the JButton is clicked. I thought this ActionListener which I have added to my JButton would achieve my goal:

public void actionPerformed(ActionEvent e) {
field2.setText(field1.getText());
field1.setText(field2.getText());
}

However, it changes the value of field2 into the value of field1 but not the other way around.

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Swing/AWT/SWT :: Icons Should Drag Starting At Point Where Mouse Originally Clicked Down

Apr 23, 2014

I am working on a simple app that should emulate a desktop with some icons that you can drag around. I was instructed to use the MouseListener and MouseMotionListener. The icons should drag starting at the point where the mouse originally clicked down on it (ie not dragging from the top right corner).

I am drawing my icons to a jpanel, and I seem to be having two problems:The hitboxes are offThe icon is being dragged from the top right corner, despite having setup up a mouse offset at the beginning of the drag..Here are the relevant classes, the Desktop.draw() method is being called from my DrawPanel

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class Desktop implements MouseListener, MouseMotionListener{
static DesktopIcon[] icons;

[code]...

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Swing/AWT/SWT :: How To Get Text From Jtextfield And Transfer It Between Classes

Apr 8, 2014

Im writing a program that records the score in a dart game. One component of the program is a stage where players enter their name.This information needs to be displayed in another part of the program. These two components are in two different classes. My problem is I dont know how to get that information from one class to another.

Im using Jtextfield in Jframe to record the information.

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