Let me demonstrate the hole you are digging yourself into You could do… BufferedImage img = ImageIO.read(this.getClass().getResource(“anigif.gif”)); ImageIcon icon = new ImageIcon(img); JLabel label = new JLabel(icon); add(label); Or you could do… Now, this is woefully inadequate and is designed for example purposes only. It does not support disposal methods or optimized Gifs…so you can … Read more
Quoting from documentation of paint() method This method actually delegates the work of painting to three protected methods: paintComponent, paintBorder, and paintChildren. … A subclass that just wants to specialize the UI (look and feel) delegate’s paint method should just override paintComponent. It looks like the paint() method actually draws the component, including the border … Read more
Instead of blocking on get(), you should publish() intermediate results and process() them on the EDT, for example. Addendum: It looks like you’re trying to simulate flame using a fractal approach. Because this may be computationally expensive, it may be useful to construct the image as a TexturePaint, which can be used to fill any … Read more
Another approach that does not require extending components. import javax.swing.*; import java.awt.*; import java.awt.image.*; import java.awt.event.ActionListener; import java.awt.event.ActionEvent; import java.util.Random; import java.net.URL; import javax.imageio.ImageIO; public class ImageOnImage { ImageOnImage(final BufferedImage bg, BufferedImage fg) { final BufferedImage scaled = new BufferedImage( fg.getWidth()/2,fg.getHeight()/2,BufferedImage.TYPE_INT_RGB); Graphics g = scaled.getGraphics(); g.drawImage(fg,0,0,scaled.getWidth(),scaled.getHeight(),null); g.dispose(); final int xMax = bg.getWidth()-scaled.getWidth(); final int yMax … Read more
Note the extra comments. import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.border.*; class JavaPaintUI extends JFrame { private int tool = 1; int currentX, currentY, oldX, oldY; public JavaPaintUI() { initComponents(); } private void initComponents() { // we want a custom Panel2, not a generic JPanel! jPanel2 = new Panel2(); jPanel2.setBackground(new java.awt.Color(255, 255, 255)); jPanel2.setBorder(BorderFactory.createBevelBorder(BevelBorder.RAISED)); … Read more
I’m sorry to say this, but there are simply so many things wrong with your code… Lets start with: DON’T override any of the paint methods of a top level container. To start with, none of the top level containers are double buffered. Use light weight components instead of heavy weight components (use JFrame instead … Read more
If you want to change the way your component is being drawn (you are adding rectangles), you need to redefine paintComponent() in that component. In your code, you are using getGraphics(). You shouldn’t call getGraphics() on a component. Any painting you do (to the Graphics returned) will be temporary and will be lost the next … Read more
You need to override the method paintComponent(Graphics g) of JPanel and use drawImage() on the Graphics object g as in this example. Also, check these two examples by @trashgod: example. example.
In the approach shown below, the desired text is imaged using TextLayout using a suitably large Font size and scaled to fill the component. There’s a related example here. import java.awt.Dimension; import java.awt.EventQueue; import java.awt.Font; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Rectangle; import java.awt.RenderingHints; import java.awt.font.FontRenderContext; import java.awt.font.TextLayout; import java.awt.image.BufferedImage; import javax.swing.JFrame; import javax.swing.JLabel; /** @see … Read more
What you want to do is use a data structure of Car objects and loop through them in the paintComonent method. Something like List<Car> cars = new ArrayList<>(); …. @Override protected void paintComponent(Graphics g) { super.paintComponent(g); for (Car car : cars) { car.drawCar(g); } } The drawCar method would come from your Car class public … Read more