paintcomponent

Hallo all. I want to paint a foreign component (i.e. belonging to a different frame's content pane), lets call it frame B, inside a component in frame A. The problem is that when I paint the component it is painted also in the content pane of the frame A, also it flickers or all gets ugly when the frame is re-sized (i.e. painted few times inside the component, some blue squares are appearing, etc.). The issue becomes more visible if I try to, for example, scale or translate the foreign component before painting. After a while I sorted it, I think. But I do not feel good with this solution, for

I have a scrollpane where load an image. I wont this image with her natural size, and if this image is too big, I wont activated the scrollbar, but this instruction g.drawImage(immagine, 0, 0, getWidth(), getHeight(), this); scaled image for placing in scrollpane. What can I do? Class Gui: import java.awt.*; import java.awt.event.*; import java.io.File; import javax.swing.*; public class Gui implements ActionListener { private JFrame frmEditor; private Mappa content; private JMenuItem mntmSfondo; private JScrollPane scrollabile; /** * Launch the application. */ public static void main(String[]

Here is simple example of drawing an oval. public class SwingPainter extends JFrame{ public SwingPainter() { super("Swing Painter"); setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); getContentPane().add(new MySwingComponent()); setSize(200, 200); setVisible(true); } public static void main(String[] args) { new SwingPainter(); } class MySwingComponent extends JComponent { public void paintComponent(Graphics g) { System.out.println("paintComponent"); super.paintComponent(g); g.setColor(Color.red); g.fillOval(10, 10, 50, 50); } @Override protected void paintBorder(Graphics g) { System.out

I'm trying to paint a rectangle on my application in a red shade but I need to make it sort of transparent so that the component under it will still show. However I still want that some colour will still show. The method where I'm drawing is the following: protected void paintComponent(Graphics g) { if (point != null) { int value = this.chooseColour(); // used to return how bright the red is needed if(value !=0){ Color myColour = new Color(255, value,value ); g.setColor(myColour); g.fillRect(point.x, point.y, this.width, this.height); } else{ Color myColour = new Color(value, 0,0 ); g.setColor

I am trying to draw lines using JPanel and I have hit somewhat of a wall. I can get two sides down but once it comes to subtracting from the x cord it all goes wrong. package GUIstuff; import java.awt.Graphics; import javax.swing.JPanel; public class DrawPanel extends JPanel{ public void paintComponent (Graphics g){ super.paintComponent(g); int width = getWidth(); int height = getHeight(); int drawCounter = 0; // counters for all the while statements int drawCounter2 = 0; int drawCounter3 = 0; int drawCounter4 = 0; int x1 = 0; // cords change with the while statemetns int x2 = 0; int y1 = 0;