Swing/AWT/SWT :: How To Rotate Arrow
Mar 11, 2015
i want to rotate this shape using AffineTransform without changing its position and its size. i want the arrow to be in a straight line. how can i proceed??
I have use this but the place of the arrow is changing.
AffineTransform at = new AffineTransform();
at.rotate(Math.toRadians(45));
c.transform(at);
here is my code for arrow
import javax.swing.SwingUtilities;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.BorderFactory;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
[Code]....
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Jan 25, 2007
I need to change the value only when I press one of the arrows in a JSpinner component.How can I add a listener to the arrow buttons. I tried ChangeListener but it was not what I needed
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Jul 21, 2014
I have written a code to rotate a Jlabel but i am facing some problems.
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.MouseInfo;
import javax.imageio.ImageIO;
[Code] ....
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Feb 23, 2015
So I need to create a square and make it rotate when the letter R is pressed and then make it stop when the letter R is pressed again. I need make it rotate using a maths equation that I can't figure it out myself right this moment.
Code for square:
package lab2;
public class Square {
public double [][] vertices = new double[4][2]; //not good to make this public
public Square(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4) {
vertices[0][0]=x1;
vertices[0][1]=y1;
vertices[1][0]=x2;
[Code] ....
In the Square code there is a method to write an equation to rotate it but I can't figure that part out ....
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Aug 3, 2014
I've started creating a simple game in Java, so now I'm stuck. I wanted to make moving character by fast alternating arrow keys, but I don't know how. I can make a boolean variable, which disables moving by pressing the same key again, but the player can just hold the key and character is still moving. I thought about changing position of character when the key is pressed, instead of increasing speed, but then the movement wouldn't be smooth. I think this may sound incomprehensible, so I will add a link to game like an example of what I mean.
Play Mini Sports Challenge game online - Y8.COM
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May 20, 2014
is possibile to change the color of the sorting arrow that appears in the columns of the Table View by css? My attempts have failed and I have not found any documentation, nor is there any reference in the Modena css.
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Apr 5, 2014
I have a list of Tabs which are dynamic depending on how many cars are in a database. If there are 10 cars there will be 10 tabs called car 1, car 2, car 3, etc. Each tab simply displays a photo and details of the car.
I have a JMenuItem that says start SlideShow and end SlideShow
What i would like to do is automatically slide through tabs when the start Slideshow is clicked.
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Jul 28, 2014
Is there any way to Rotate jPanel in java (without using Paint Function).
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May 23, 2014
I have been trying to rotate an image on a certain degree, and still remain on the same position. I have tried g.rotate, but it just rotate around a center, and it does not keep the same position as before.
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Apr 11, 2015
I need my Java program (I'm working in Eclipse if it matters) to detect if an image is a portrait or a landscape, but since i am directly downloading them from my camera they only have it written somewhere in metadata, the image width and height is the same for landscape and portrait. I have the rotation code and the rest of the program working, but I need to somehow get a variable (for example integer one) to tell me if it is a portrait or a landscape image. I tried getting to the metadata but my Eclipse decided that import com.drew.metadata.Metadata; cannot be resolved.
BufferedImage image = ImageIO.read(new File(imagePath, imageName)); and after I get the variable "orientation" it looks like this
int orientation = ???;
BufferedImage newImage = oldImage;
if (orientation>1){
newImage = rotate(oldImage);
}
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May 13, 2014
I'm trying to replicate the rol(rotate left) instruction in assembly though can only get as far as shifting the bits with '<<' or doing Long.rotateLeft(var, 5). Both of these method don't wrap around the bits as the rol instruction does.
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Mar 13, 2014
package id.ac.ub.ptiik.computergraphics;
import static org.lwjgl.opengl.GL11.*;
import static org.lwjgl.util.glu.GLU.*;
public class CG04_3DTransformation extends CGApplication {
protected boolean wireframe = true;
[Code] .....
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Jun 14, 2014
I am having a problem rotating a shape I am using the transformation rotation matrix and don't seem to be getting the results I expected. Now I know a lot of programmers will just tell me to use the Graphics2D rotate(theta) Method.But I would like to create this ability through writing the code.
package com.trigonometry;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;
[Code] ....
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Aug 28, 2014
Since the upgrade to JavaFX 8u20 my ProgressIndicator won't rotate anymore when using Caspian style. Is there any workaround for this?
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.ProgressIndicator;
import javafx.stage.Stage;
public class TestApp2 extends Application {
public static void main(String[] args) {
[Code] ....
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Feb 16, 2014
I have a problem with progress bar implementation to my project. Let me explain it;
I have Jframe named GUI. Filled with 2 datechooser combo box and 1 Buton.
And i have a Swingworker class named "MySwingWorker" for my long running task just like this;
package exampleproject;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.logging.Level;
import java.util.logging.Logger;
[code]....
Just i want add a progress bar for listening MySwingWorker's setProgress updates. When buton clicked swingworker should executed and progress bar should come to screen. I read many articles about that but not understand correctly. Because i am beginner in JAVA.
Question1: Should i (create new class) or (implement to current gui or swingworker class) for progressbar?
Question2: Should i fired progress bar first and execute swingworker from progressbar class? or should i execute swingworker first and fired progress bar later and how?
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Jul 26, 2014
Is it a good idea to use the factory design pattern for say if I needed to create four different JDialogs for the same parent frame?
factory design interface
package client;
public interface Dialog {
void getInstanceOf ();
void initComponents ();
}
One of the four JDialog class would look something like this without the comments.
package client;
import javax.swing.JDialog;
@SuppressWarnings("serial")
public class AddCustomerDialog extends JDialog implements Dialog{
public AddCustomerDialog () {
//Some stuff goes here to set the settings for JDialog instance
[code]....
Of course you would have your factory class
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Mar 19, 2014
I would like to be able to change the locale in my Swing application at runtime and have all the text elements on the GUI update themselves with localized text from a ResourceBundle of the new locale.If there a simple way of achieving this without having to create an event model for all GUI pages?
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Apr 19, 2014
can we create web applications using swings? if yes how to create web app using swing?
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Jan 17, 2015
I have created a jtable with two columns so I need add checkboxes dynamically in to the first column.Bıt I couldn find something like add.How can do this.This is what I have so far
public CheckBoxes(){
table=new JTable(new TableModels());
TableColumnModel columnModel = null;
JCheckBox box;
for (int i = 0; i <2; i++) {
[Code] ....
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Dec 20, 2014
I've almost finished building an Editor in Java, but i'm a bit stuck on creating a JCheckBox that saves your credentials (as in password only) . I would like it to be on a JPanel under the password input box and above the Login and Register buttons.
Code:
Login.java (Main class for this problem)
[URL] ....
The main thing here is using GridLayout, which is what im currently working with but can't seem to get it under the password input box.. check: [URL] ....
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Mar 17, 2014
How to add combo box to swing ....
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Feb 12, 2014
how to open a GUI on top of another GUI? I have built a GUI and have a button that when pressed I want to open a new GUI which is another java application within the project, it seems pretty straight forward and I just need to insert 'new [name of application]()'
Button btnEdit = new Button(shell, SWT.NONE);
btnEdit.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
new edit();
}
});
btnEdit.setBounds(76, 10, 75, 25);
btnEdit.setText("Edit");
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Sep 13, 2014
What is the best way to run a Swing application on the web? Should I convert it to an applet or do something else?
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Jan 6, 2014
I find myself asking these two questions because I see them as relating. First question is; I always write
Java Code: f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); mh_sh_highlight_all('java');
(where f is a JFrame object)
to set the close for the JFrame. What I don't get about this is what is going on in the parenthesis. I looked in the Java Documentation, and it says an int goes inside. In that case, I don't really get what the word JFrame is doing there. Overall, please explain what is inside the parenthesis of that line and why it has to be there.The second question is a generic question. I notice a lot of times an object will be created, and as its parameter, you will have to instantiate an object. an example would be
Java Code: Class f = new Class(new Object) mh_sh_highlight_all('java');
What does it mean when an object gets created inside of a new object? Why is putting Java Code: new Object mh_sh_highlight_all('java');
ever necessary when concerning the two parenthesis?
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Jan 16, 2015
I am trying to add a JMenuBar to this program with just one dropdown to select one option but I am getting an error with the setJMenuBar(menuBar); line as it does not extend JFram. How I would add a menu to this program another way.
public class Calculator extends JPanel implements ActionListener{
private static final long serialVersionUID = 1L;
JMenuBar menuBar = new JMenuBar();
JMenu noteMenu = new JMenu("Note");
JMenuItem newNote = new JMenuItem("New Note");
public static final int WIDTH = 350;
public static final int HEIGHT = 560;
[Code] ....
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Oct 3, 2014
According to what I read, "when programming in Swing, your GUI creation code should be placed on the Event Dispatch Thread (EDT). This will prevent potential race conditions that could lead to deadlock." (See below for code.)
Why is this? How could making a GUI lead to deadlock?
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
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