PaintComponent « JPanel « Java Swing Q&A

1. Non-Working paintComponent method stackoverflow.com

Code :

import javax.swing.*;
import java.awt.*;

public class firstGUI extends JPanel {

    public static void main(String[] args) {
        JFrame frame =  new JFrame();
 ...

2. drawing a graph in a JPanel in Net Beans stackoverflow.com

Is there a possible way to override the paintComponent() method in the auto-generated GUI code in NetBeans? I managed to manually draw a graph without using the drag-and-drop components, and I ...

3. Java 2D Graphics - Can't Figure Out paintComponent! stackoverflow.com

I've read all the tutorials I could find with no avail. My setup is I have my JPanel class, which has a member that is a user class "OneTone" which extends ...

4. jpanel dont draw a buffered image but the buffered image can be created as file stackoverflow.com

Hi i have a jpanel to draw on. from this jpanel i make bufferedimages and safe them into a linkedlist. on a button press i want to animate this bufferedimages(play one ...

5. javax.swing.jpanel paintcomponent() stackoverflow.com

hello im new in java programming i need someone who explain me these lines of code:

 public class drawpanel extends JPanel
    {
     public void ...

6. Problems repainting in a JPanel Runnable stackoverflow.com

I am writing a program that will play a song and have a JPanel displaying images during it. The song plays fine, the first image is drawn (I assume from the ...

7. How to draw in jPanel? (swing/graphics Java) stackoverflow.com

Hey guys, I'm working on a project in which I am trying to make a paint program So far I've used netbeans to create a GUI and set up the program. As of ...

8. Java Problem with super.paintComponents(g), it makes a print screen stackoverflow.com

I'm trying to make a paint in java, with classes and hierarchy. But my paint area isn't getting the background color (defined as white) and when i click it makes a ...

9. Java drawing between JPanels stackoverflow.com

I have to following situation: A JPanel is used a "drawing board" where the user can add blocks that have specific connection points which can be used to interconnect to other blocks ...

10. Painting Graphics on JPanel without using PaintComponent method and repaint call stackoverflow.com

I want to paint Graphics on JPanel. Right now, what I am doing is, I use the paintComponent method to define the drawing:

public void paintComponent(Graphics g) {
    super.paintComponent(g);
 ...

11. Is it acceptable to make a graph this way for JPanel? stackoverflow.com

I need to graph some statistical data inside of someone's class which extends a JPanel. Right now the plan is to use paintComponent and the Graphics class as follows:

public void ...

12. Java - using paintComponent for graphics, calling functions from within? stackoverflow.com

I'm really confused with the program flow for how the paintComponent function works within my JPanel. Ideally I'd like to have access to the Graphics object to draw stuff from other ...

13. BG image with Swing without overriding paintComponent stackoverflow.com

I'm currently designing a menu with several screens with multiple buttons on each screen. To use buttons on top of the background image, which is in a jLabel (by default, I ...

14. Adding image to JPanel through ImageIO.read? stackoverflow.com

I'm trying to add a JPanel with a picture in it. I'm using ImageIO.read to get the path but i get an IOException saying : can't read input file The picture is ...

15. Drawing on a java panel - Nothing is appearing stackoverflow.com

I am trying to draw onto a panel which sits in an applet. I have 5 panels and have coloured the backgrounds just so that i can see where they are. ...

16. Overriding the paintComponent method of JPanel forums.netbeans.org

I need to draw a graph over a JPanel by overriding the JPanel's paintComponent() method. While designing gui using netbeans when i drag/drop a JPanel over JFrame it generates code by ...

17. About Jpanel paintcomponent coderanch.com

hello all I am try to display the graphics elements like line with the button component and I choose to display that in Panel using paintComponent But It is display that two time and It is not working properly. could any one tell me what to do in that case and there is any mecanism to get the graphics object instead ...

18. JPanel PaintComponent method gives OutOfMemoryError coderanch.com

Hi I need to display several images on a JPanel, effectively to make a kind of photo gallery. They are generally large jpg files (approx 1mb each), and I'm using the drawImage method of Graphics object to scale them down and draw them to the panel. At the moment, I've got a JPanel, and have overridden the paintComponent(Graphics g) method to ...

19. paintComponent JPanel coderanch.com

Using an offscreen image for the unchanging part of the graphics and drawing the marker on top of it (between the image and the user) is one standard way. import java.awt.*; import java.awt.event.*; import java.awt.geom.Line2D; import java.awt.image.BufferedImage; import javax.swing.*; public class OneWay extends JPanel { BufferedImage image; int pos; protected void paintComponent(Graphics g) { if(image == null) initImage(); g.drawImage(image, 0, 0, ...

20. problem with JPanel paintComponent() coderanch.com

In "Head First Java" this method is described as one that "never needs to be called" ...not sure what this means. does it mean that you won't need to use a main method? In that case, why won't this run import java.awt.*; import javax.swing.*; class MyDrawPanel extends JPanel { public void paintComponent(Graphics g) { g.setColor(Color.orange); g.fillRect(20,50, 100,100); } } ...it compiles, ...

21. paint vs paintComponent for a JPanel java-forums.org

Hi. In my Java applet, I have a class which extends JPanel in order to display 2D graphics. In this class I can override paint(), or paintComponent(), and both appear to work exactly the same. Obviously there is some difference, but I don't know what it is -- can anyone help with a brief explanation? thanks in advance!

22. JPanel PaintComponent java-forums.org

I am trying to animate a dice roll image, but it is not working. here is my code: Java Code: public class DiePanel extends javax.swing.JPanel { private int _LeftDie = 1; private int _RightDie = 1; private Timer timer; private Image LeftImage; private Image RightImage; private ImageIcon icon; /** Creates new form DiePanel */ public DiePanel() { initComponents(); setPlayerPiece(); icon = ...

23. the graphics won't show up when i use the methord paintComponent of JPanel class.HELP java-forums.org

The code below can execute. I want to draw something on the right JPanel. But nothing appeared but the white background when pushed the button. I think there's something wrong with the methord paintComponent. How should I change the code? Someone help!!! Java Code: import java.awt.BorderLayout; import java.awt.Color; import java.awt.FlowLayout; import java.awt.Graphics; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import ...

24. Painting in JPanel with PaintComponent. forums.oracle.com

25. Painting in JPanel with PaintComponent. forums.oracle.com

26. Graphics, JPanel and paintComponent() forums.oracle.com

Graphics, JPanel and paintComponent()... equal Swing related question. And there is a forum for Swing questions. I fixed the problem with adding this piece on the paintComponent() method just before the for loop: comp.fillRect(0, 0, this.getSize().width, this.getSize().height); or you could just do: super.paintComponent(g); But I can't help but feel this an unnecessary reacharound for the problem. Any thoughts Be default a ...