Switching images in a panel

I'm new to Java, and have loaded an image via the constructor into a panel as follows:
pic3panel = new JPanel();
pic3panel.setLayout( new GridLayout( 1, 1) );
logo1 = new ImageIcon( "image1.jpg" );
image1 = new JLabel( logo1 );
pic3panel.add( image1 );
c.add( pic3panel, BorderLayout.CENTER );
Anyone know how I can change the image later in a member function?

JLabel has a setIcon() method, have you tried that?

Similar Messages

How to drag image in left panel then drop into right panel??

Dear friends.
I have following code, it is runnable, just add two jpg image files is ok, to run.
I tried few days to drag image from left panel then drop into right panel or vice versa, but not success, can any GUI guru help??
Thanks.
Sunny
[1]. main code/calling code:
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class ImagePanelCall extends JComponent {
     public JSplitPane ImagePanelCall() {
          setPreferredSize(new Dimension(1200,300));
          JSplitPane          sp = new JSplitPane();
          sp.setPreferredSize(new Dimension(1200,600));
          sp.setOrientation(JSplitPane.HORIZONTAL_SPLIT);
          add(sp);
          ImagePanel     ip = new ImagePanel();
          ImagePanel     ip1 = new ImagePanel();
          ip.setPreferredSize(new Dimension(600,300));
          ip1.setPreferredSize(new Dimension(600,300));
          sp.setLeftComponent(ip);// add left part
          sp.setRightComponent(ip1);// add right part
          sp.setVisible(true);
          return sp;
     public static void main(String[] args) {
          JFrame frame = new JFrame("Test transformable images");
          ImagePanelCall ic = new ImagePanelCall();
          frame.setPreferredSize(new Dimension(1200,600));
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.getContentPane().add(ic.ImagePanelCall(), BorderLayout.CENTER);
          frame.pack();
          frame.setVisible(true);
}[2]. code 2
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class ImagePanel extends JComponent {
     private static final Cursor DEFAULT_CURSOR = new Cursor(Cursor.DEFAULT_CURSOR);
     private static final Cursor MOVE_CURSOR = new Cursor(Cursor.MOVE_CURSOR);
     private static final Cursor VERTICAL_RESIZE_CURSOR = new Cursor(Cursor.N_RESIZE_CURSOR);
     private static final Cursor HORIZONTAL_RESIZE_CURSOR = new Cursor(Cursor.W_RESIZE_CURSOR);
     private static final Cursor NW_SE_RESIZE_CURSOR = new Cursor(Cursor.NW_RESIZE_CURSOR);
     private static final Cursor NE_SW_RESIZE_CURSOR = new Cursor(Cursor.NE_RESIZE_CURSOR);
     public Vector images;
     * Create an ImagePanel with two images in.
     * A MouseHandler instance is added as mouse listener and mouse motion listener.
     public ImagePanel() {
          images = new Vector();
          images.add(new TransformableImage("swing/dnd/Bird.gif"));
          images.add(new TransformableImage("swing/dnd/Cat.gif"));
          setPreferredSize(new Dimension(600,600));
          MouseHandler mh = new MouseHandler();
          addMouseListener(mh);
          addMouseMotionListener(mh);
     * Simply paint all the images contained in the Vector images, calling their method draw(Graphics2D, ImageObserver).
     public void paintComponent(Graphics g) {
          Graphics2D g2D = (Graphics2D)g;
          for (int i = images.size()-1; i>=0; i--) {
               ((TransformableImage)images.get(i)).draw(g2D, this);
     * Inner class defining the behavior of the mouse.
     final class MouseHandler extends MouseInputAdapter {
          private TransformableImage draggedImage;
          private int transformation;
          private int dx, dy;
          public void mouseMoved(MouseEvent e) {
               Point p = e.getPoint();
               TransformableImage image = getImageAt(p);
               if (image != null) {
                    transformation = image.getTransformation(p);
                    setConvenientCursor(transformation);
               else {
                    setConvenientCursor(-1);
          public void mousePressed(MouseEvent e) {
               Point p = e.getPoint();
               draggedImage = getImageAt(p);
               if (draggedImage!=null) {
                    dx = p.x-draggedImage.x;
                    dy = p.y-draggedImage.y;
          public void mouseDragged(MouseEvent e) {
               if (draggedImage==null) {
                    return;
               Point p = e.getPoint();
               repaint(draggedImage.x,draggedImage.y,draggedImage.width+1,draggedImage.height+1);
               draggedImage.transform(p, transformation,dx,dy);
               repaint(draggedImage.x,draggedImage.y,draggedImage.width+1,draggedImage.height+1);
          public void mouseReleased(MouseEvent e) {
               Point p = e.getPoint();
               draggedImage = null;
     * Utility method used to get the image located at a Point p.
     * Returns null if there is no image at this point.
     private final TransformableImage getImageAt(Point p) {
          TransformableImage image = null;
          for (int i = 0, n = images.size(); i<n; i++) {
               image = (TransformableImage)images.get(i);
               if (image.contains(p)) {
                    return(image);
          return(null);
     * Sets the convenient cursor according the the transformation (i.e. the position of the mouse over the image).
     private final void setConvenientCursor(int transfo) {
          Cursor currentCursor = getCursor();
          Cursor newCursor = null;
          switch (transfo) {
               case TransformableImage.MOVE : newCursor = MOVE_CURSOR;
                    break;
               case TransformableImage.RESIZE_TOP : newCursor = VERTICAL_RESIZE_CURSOR;
                    break;
               case TransformableImage.RESIZE_BOTTOM : newCursor = VERTICAL_RESIZE_CURSOR;
                    break;
               case TransformableImage.RESIZE_LEFT : newCursor = HORIZONTAL_RESIZE_CURSOR;
                    break;
               case TransformableImage.RESIZE_RIGHT : newCursor = HORIZONTAL_RESIZE_CURSOR;
                    break;
               case TransformableImage.RESIZE_TOP_LEFT_CORNER : newCursor = NW_SE_RESIZE_CURSOR;
                    break;
               case TransformableImage.RESIZE_TOP_RIGHT_CORNER : newCursor = NE_SW_RESIZE_CURSOR;
                    break;
               case TransformableImage.RESIZE_BOTTOM_LEFT_CORNER : newCursor = NE_SW_RESIZE_CURSOR;
                    break;
               case TransformableImage.RESIZE_BOTTOM_RIGHT_CORNER : newCursor = NW_SE_RESIZE_CURSOR;
                    break;
               default : newCursor = DEFAULT_CURSOR;
          if (newCursor != null && currentCursor != newCursor) {
               setCursor(newCursor);
     public static void main(String[] args) {
          JFrame frame = new JFrame("Test transformable images");
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.getContentPane().add(new ImagePanel(), BorderLayout.CENTER);
          frame.pack();
          frame.setVisible(true);
}[3]. code 3
import java.awt.*;
import javax.swing.*;
import java.awt.image.*;
public final class TransformableImage extends Rectangle {
     public static final int MOVE = 0;
     public static final int RESIZE_TOP = 10;
     public static final int RESIZE_BOTTOM = 20;
     public static final int RESIZE_RIGHT = 1;
     public static final int RESIZE_LEFT = 2;
     public static final int RESIZE_TOP_RIGHT_CORNER = 11;
     public static final int RESIZE_TOP_LEFT_CORNER = 12;
     public static final int RESIZE_BOTTOM_RIGHT_CORNER = 21;
     public static final int RESIZE_BOTTOM_LEFT_CORNER = 22;
     public static final int BORDER_THICKNESS = 5;
     public static final int MIN_THICKNESS = BORDER_THICKNESS*2;
     private static final Color borderColor = Color.black;
     private Image image;
     * Create an TransformableImage from the image file filename.
     * The TransformableImage bounds (inherited from the class Rectangle) are setted to the corresponding values.
     public TransformableImage(String filename) {
          ImageIcon ic = new ImageIcon(filename);
          image = ic.getImage();
          setBounds(0,0,ic.getIconWidth(), ic.getIconHeight());
     * Draw the image rescaled to fit the bounds.
     * A black rectangle is drawn around the image.
     public final void draw(Graphics2D g, ImageObserver observer) {
          Color oldColor = g.getColor();
          g.setColor(borderColor);
          g.drawImage(image, x, y, width, height, observer);
          g.draw(this);
          g.setColor(oldColor);
     * Return an int corresponding to the transformation available according to the mouse location on the image.
     * If the point p is in the border, with a thickness of BORDER_THICKNESS, around the image, the corresponding
     * transformation is returned (RESIZE_TOP, ..., RESIZE_BOTTOM_LEFT_CORNER).
     * If the point p is located in the center of the image (i.e. out of the border), the MOVE transformation is returned.
     * We allways suppose that p is contained in the image bounds.
     public final int getTransformation(Point p) {
          int px = p.x;
          int py = p.y;
          int transformation = 0;
          if (py<(y+BORDER_THICKNESS)) {
               transformation += RESIZE_TOP;
          else
          if (py>(y+height-BORDER_THICKNESS-1)) {
               transformation += RESIZE_BOTTOM;
          if (px<(x+BORDER_THICKNESS)) {
               transformation += RESIZE_LEFT;
          else
          if (px>(x+width-BORDER_THICKNESS-1)) {
               transformation += RESIZE_RIGHT;
          return(transformation);
     * Move the left side of the image, verifying that the width is > to the MIN_THICKNESS.
     public final void moveX1(int px) {
          int x1 = x+width;
          if (px>x1-MIN_THICKNESS) {
               x = x1-MIN_THICKNESS;
               width = MIN_THICKNESS;
          else {
               width += (x-px);
               x = px;
     * Move the right side of the image, verifying that the width is > to the MIN_THICKNESS.
     public final void moveX2(int px) {
          width = px-x;
          if (width<MIN_THICKNESS) {
               width = MIN_THICKNESS;
     * Move the top side of the image, verifying that the height is > to the MIN_THICKNESS.
     public final void moveY1(int py) {
          int y1 = y+height;
          if (py>y1-MIN_THICKNESS) {
               y = y1-MIN_THICKNESS;
               height = MIN_THICKNESS;
          else {
               height += (y-py);
               y = py;
     * Move the bottom side of the image, verifying that the height is > to the MIN_THICKNESS.
     public final void moveY2(int py) {
          height = py-y;
          if (height<MIN_THICKNESS) {
               height = MIN_THICKNESS;
     * Apply a given transformation with the given Point to the image.
     * The shift values dx and dy are needed for move tho locate the image at the same relative position from the cursor (p).
     public final void transform(Point p, int transformationType, int dx, int dy) {
          int px = p.x;
          int py = p.y;
          switch (transformationType) {
               case MOVE : x = px-dx; y = py-dy;
                    break;
               case RESIZE_TOP : moveY1(py);
                    break;
               case RESIZE_BOTTOM : moveY2(py);
                    break;
               case RESIZE_LEFT : moveX1(px);
                    break;
               case RESIZE_RIGHT : moveX2(px);
                    break;
               case RESIZE_TOP_LEFT_CORNER : moveX1(px);moveY1(py);
                    break;
               case RESIZE_TOP_RIGHT_CORNER : moveX2(px);moveY1(py);
                    break;
               case RESIZE_BOTTOM_LEFT_CORNER : moveX1(px);moveY2(py);
                    break;
               case RESIZE_BOTTOM_RIGHT_CORNER : moveX2(px);moveY2(py);
                    break;
               default :
}

I gave you a simple solution in your other posting. You never responded to the suggestion stating why the given solution wouldn't work, so it can't be that urgent.

Getting the bounds of a drawn image on a panel

Hello, I have a problem with getting the bounds of a drawn image on a panel...Since it is drawn as graphics, i tried getClipBounds and since my class extends JPanel i tried to get the bounds from the panel but neither of them worked properly. It only gets the bounds of a jframe that contains the panel.Then i tried to put the panel in a layeredpane and then a container; but this time the image disappeared completely. Hope someone can help or tell me what I am doing wrong. Thanks in advance. Here is the code below:
By the way what I am trying to do in this code is basically zooming the image in and out by dragging or the mouse wheel. But I need to get the bounds so that I can use this.
* To change this template, choose Tools | Templates
* and open the template in the editor.
* @author Admin
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Point;
import java.awt.RenderingHints;
import java.awt.Toolkit;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.event.MouseWheelEvent;
import java.awt.event.MouseWheelListener;
import java.awt.geom.AffineTransform;
import java.awt.geom.NoninvertibleTransformException;
import java.awt.geom.Point2D;
import javax.swing.JFrame;
import javax.swing.JLayeredPane;
import javax.swing.JPanel;
public class ZoomDemo extends JPanel {
AffineTransform tx = new AffineTransform();
String imagePath = "D:/Documents and Settings/Admin/Belgelerim/tsrm/resim.jpg";
Image image = Toolkit.getDefaultToolkit().getImage(imagePath);
int width = image.getWidth(this);
int height = image.getHeight(this);
int scrwidth = Toolkit.getDefaultToolkit().getScreenSize().width;
int scrheight = Toolkit.getDefaultToolkit().getScreenSize().height;
double zoomfac = 1.0;
int xAdj;
int yAdj;
int prevY;
double scale = 1.0;
Point pt;
public static int x;
public static int y;
public static int w;
public static int h;
public ZoomDemo() {
this.addMouseWheelListener(new ZoomHandler());
this.addMouseListener(new ZoomHandler());
this.addMouseMotionListener(new ZoomHandler());
repaint();
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D) g;
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2.drawImage(image, tx, this);
// x =    (int) g2.getClipBounds().getX();
// y=     (int) g2.getClipBounds().getY();
// w=     (int) g2.getClipBounds().getWidth();
// h=     (int) g2.getClipBounds().getHeight();
// System.out.println(x+" "+y+" "+w+" "+h);
// public int getRectx(){
//    return x;
//public int getRecty(){
//    return y;
//public int getRectw(){
//    return w;
//public int getRecth(){
//    return h;
private class ZoomHandler implements MouseWheelListener,MouseListener, MouseMotionListener {
public void mousePressed(MouseEvent e){
    System.out.println("Mouse Pressed");
xAdj = e.getX();
yAdj = e.getY();
prevY = getY();
public void mouseDragged(MouseEvent e){
       System.out.println("Mouse Dragged");
boolean zoomed = false;
if(e.getY()<prevY){
     zoomfac = zoomfac + 0.1;
     prevY = e.getY();
     zoomed = true;
else if(e.getY()>prevY){
     zoomfac = zoomfac - 0.1;
     prevY = e.getY();
     zoomed = true;
   scale = zoomfac;
Point2D p1 = new Point((int)xAdj-(width/2),(int)yAdj-(height/2));
Point2D p2 = null;
try {
p2 = tx.inverseTransform(p1, null);
} catch (NoninvertibleTransformException ex) {
// should not get here
ex.printStackTrace();
return;
tx.setToIdentity();
tx.translate(p1.getX(), p1.getY());
tx.scale(scale, scale);
tx.translate(-p2.getX(), -p2.getY());
tx.transform(p1, p2);
ZoomDemo.this.revalidate();
ZoomDemo.this.repaint();
public void mouseWheelMoved(MouseWheelEvent e) {
if (e.getScrollType() == MouseWheelEvent.WHEEL_UNIT_SCROLL) {
Point2D p1 = e.getPoint();
Point2D p2 = null;
try {
p2 = tx.inverseTransform(p1, null);
} catch (NoninvertibleTransformException ex) {
// should not get here
ex.printStackTrace();
return;
scale -= (0.1 * e.getWheelRotation());
scale = Math.max(0.1, scale);
tx.setToIdentity();
tx.translate(p1.getX(), p1.getY());
tx.scale(scale, scale);
tx.translate(-p2.getX(), -p2.getY());
ZoomDemo.this.revalidate();
ZoomDemo.this.repaint();
        public void mouseClicked(MouseEvent e) {
            //throw new UnsupportedOperationException("Not supported yet.");
        public void mouseReleased(MouseEvent e) {
            //throw new UnsupportedOperationException("Not supported yet.");
        public void mouseEntered(MouseEvent e) {
           // throw new UnsupportedOperationException("Not supported yet.");
        public void mouseExited(MouseEvent e) {
           // throw new UnsupportedOperationException("Not supported yet.");
        public void mouseMoved(MouseEvent e) {
           // throw new UnsupportedOperationException("Not supported yet.");
public static void main(String[] args) {
//SwingUtilities.invokeLater(new ZoomDemo());
int scrwidth = Toolkit.getDefaultToolkit().getScreenSize().width;
int scrheight = Toolkit.getDefaultToolkit().getScreenSize().height;
JFrame f = new JFrame("Zoom");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setSize(scrwidth , scrheight);
//JLayeredPane lp = new JLayeredPane();
//f.add(lp);
ZoomDemo zd = new ZoomDemo();
zd.getBounds();
f.add(zd);
//int x = (int) zd.getX();
//int y = (int) zd.getY();
//int w = (int) zd.getWidth();
//int h = (int) zd.getHeight();
//System.out.println(x+" "+y+" "+w+" "+h);
//zd.setBounds(x ,y ,w ,h );
//lp.add(zd, JLayeredPane.DEFAULT_LAYER);
//f.setLocationRelativeTo(null);
f.setVisible(true);
//lp.setVisible(true);
//zd.setVisible(true);
}Edited by: .mnemonic. on May 26, 2009 11:07 PM
Edited by: .mnemonic. on May 27, 2009 11:00 AM

You'll need a stable point in the component to track and orient to the scaling transform(s).
From this you can construct whatever you need in the way of image location and size.
Let's try a center–of–image tracking point:
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.awt.image.BufferedImage;
import javax.swing.*;
import javax.swing.event.MouseInputAdapter;
public class ZD extends JPanel {
    BufferedImage image;
    Point center;
    AffineTransform at = new AffineTransform();
    Point2D.Double origin = new Point2D.Double(0,0);
    public ZD(BufferedImage image) {
        this.image = image;
        center = new Point(image.getWidth()/2, image.getHeight()/2);
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        Graphics2D g2 = (Graphics2D)g;
        g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
                            RenderingHints.VALUE_INTERPOLATION_BICUBIC);
        g2.drawRenderedImage(image, at);
        g2.setPaint(Color.red);
        g2.fill(new Ellipse2D.Double(origin.x-1.5, origin.y-1.5, 4, 4));
        g2.setPaint(Color.blue);
        g2.fill(new Ellipse2D.Double(center.x-1.5, center.y-1.5, 4, 4));
    private void setTransform(double scale) {
        // keep image centered over Point "center"
        double x = center.x - scale*image.getWidth()/2;
        double y = center.y - scale*image.getHeight()/2;
        origin.setLocation(x, y);
        at.setToTranslation(x, y);
        at.scale(scale, scale);
    public static void main(String[] args) throws java.io.IOException {
        java.net.URL url = ZD.class.getResource("images/hawk.jpg");
        BufferedImage image = javax.imageio.ImageIO.read(url);
        ZD test = new ZD(image);
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add(test);
        f.setSize(500,500);
        f.setLocation(100,100);
        f.setVisible(true);
        test.addMouseListener(test.mia);
        test.addMouseMotionListener(test.mia);
    /** MouseAdapter okay in j2se 1.6+ */
    private MouseInputAdapter mia = new MouseInputAdapter() {
        final double SCALE_INC = 0.05;
        final int SCALE_STEP = 20;
        double scale = 1.0;
        double lastStep;
        public void mousePressed(MouseEvent e) {
            Point p = e.getPoint();
            center.setLocation(p);
            //System.out.printf("center = [%3d, %3d]%n", p.x, p.y);
            setTransform(scale);
            repaint();
        public void mouseDragged(MouseEvent e) {
            // scale up/down with relative vertical motion
            int step = (e.getY() - center.y)/SCALE_STEP;
            if(step != lastStep) {
                scale += SCALE_INC*((step < lastStep) ? -1 : 1);
                //System.out.printf("step = %3d scale = %.3f%n", step, scale);
                setTransform(scale);
                lastStep = step;
                repaint();
}

I can't view multiple images in tabbed panels in photoshop CC (do not have this problem in PS5 or 6)

I can't set up multiple images in tabbed panels in photoshop CC (do not have this problem in PS5 or 6). Has anyone had this problem with CC and if so do they know the fix?

I just discovered something really weird. If I open the images in
photoshop (and the tabs are not showing) and then open another window on
top of photoshop (for example word or safari) , then the images and tabs
show in the photoshop window. But if I move Pshop to the front screen then
the tabs disappear!

Creating an image from a panel

Hi everybody,
I have a panel which extends JPanel, and wrote an image() method to extract the drawn image off the panel. For some reason, though, when I call this method, I get a dialog with a black box centered in it, and not the appropriate image.
My SSCCE is as follows:
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import javax.swing.ImageIcon;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.SwingUtilities;
public class MyPanel extends JPanel {
    private BufferedImage image;
    public BufferedImage image() {
        int x = getWidth();
        int y = getHeight();
        //image = new BufferedImage(x, y, BufferedImage.TYPE_INT_RGB);
        image = new BufferedImage(200, 200, BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = image.createGraphics();
        SwingUtilities.paintComponent( g2, this, new JPanel(), 0, 0, x, y );
        g2.dispose();
        return image;
    public static void main( String args[] ) {
         MyPanel canvas = new MyPanel() {
              public void paintComponent( Graphics g ) {
                   Graphics2D g2 = (Graphics2D)g;
                   for( int i = 1; i <= 20; i++ ) {
                        int pos = i*50;
                        g2.drawString( "This is a test", pos, pos );
         JDialog test = new JDialog();
        JLabel label = new JLabel( new ImageIcon( canvas.image() ) );
        JScrollPane scroller = new JScrollPane( label );
        scroller.setPreferredSize( new Dimension( 500, 500 ) );
        test.add( scroller );
        test.pack();
        test.setVisible( true );
}I'm pretty sure it has something to do with the sizing of the image and the timing of the repainting--when I uncomment the commented line in image(), I get an error saying width and height can't be less than or equal to 0. But anyway, I need to paint and then show an image of what was painted, not the actual painted panel--that's what I'm having trouble with. If anyone could help me out, I'd appreciate it. Can anyone help me fix this, please?
Thanks,
Jezzica85
Edited by: jezzica85 on Jun 1, 2009 6:16 AM

Odd choice to both have the panel with a getImage() method, and also override paintComponent(Graphics).
Here is an alternate form of your code.
import java.awt.*;
import java.awt.image.BufferedImage;
import javax.swing.*;
public class MyPanel extends JPanel {
private BufferedImage image;
public BufferedImage image() {
    int x = 200;
    int y = 200;
    image = new BufferedImage(x,y, BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = image.createGraphics();
    g2.setColor(Color.yellow);
    g2.fillRect(0,0,x,y);
    g2.setColor(Color.black);
    for( int i = 1; i <= 20; i++ ) {
      int pos = i*50;
      g2.drawString( "This is a test", pos, pos );
    g2.dispose();
    return image;
public static void main( String args[] ) {
    Runnable r = new Runnable() {
      public void run() {
        MyPanel canvas = new MyPanel();
        JDialog test = new JDialog();
        JLabel label = new JLabel( new ImageIcon( canvas.image() ) );
        JOptionPane.showMessageDialog(null, label);
        JScrollPane scroller = new JScrollPane( label );
        scroller.setPreferredSize( new Dimension( 500, 500 ) );
        JOptionPane.showMessageDialog(null, scroller);
    EventQueue.invokeLater(r);
}

Displaying thumbnail images in another panel when it mouse clicked

hi,
I am using JAI, what i am trying to do is i am decoding the tiff file and creating thumbnail of that images and adding thumbnail images to one panel and enlarged images to another panel using DisplayJAI. Now when i will click i thumbnail images on left panel then that image should be display to another panel on right side. Adding both panel to JSplit panel.
I have no idia how to do it, i tried to do in different way but not able to do that. I hope anybody can give me the hints about this.
Thanks

i am adding thumbnail of all images in left panel and enlarged view of each thumbnail is added in right panel , and what i require that when i click thumbnail in left side it's corresponding enlarged image should be visible, suppose in right panel page no. 1 is visible and when i click thumbnail of 13 page in left panel that should be in viewport of right panel.You should put your right panel inside a JScrollPane and call [scrollRectToVisible() |http://java.sun.com/javase/6/docs/api/javax/swing/JComponent.html#scrollRectToVisible(java.awt.Rectangle)] from your panel. You can put the rectangles corresponding to enlarged images in a hash map with the keys being some unique attribute of your thumbnails in left panel. That will help in getting the rectangle to make visible, real fast. Or, you can just put the rectangles in some array indexed according to the thumbnails in left panel.
I also want to hide the left panel, i think it's possible by Frame.Yes it is possible, but you said you have both your panels in a split pane, so maybe you can use its setDividerLocation() function to hide your left panel.
Thanks!

How can I drag and drop an icon/image into a panel??

Dear Friends:
How can I drag and drop an icon/image from one panel into another target panel at any position in target panel at my will??
any good example code available??
I search for quite a while, cannot find a very good one.
please help
Thanks
Sunny

[url http://java.sun.com/developer/JDCTechTips/2003/tt0318.html#1]DRAGGING TEXT AND IMAGES WITH SWING

Adding different images to different panels

If I am having a class which is extending Applet not JApplet and in that I am having CardLayout with 4 different panels. If I want to add 4 different images 2 these Panels what is the solution? Can anyone please help?

sorry
myPanel p1, p2, p3, p4;
class myPanel extends Panel
Image image;
public myPanel(Image img)
image = img;
public void paint (Graphics g)
if (image == null)
return;
g.drawImage(image, 0, 0, this);
}

Display a color image in front panel.

Hi there,
How do I display a color image in front panel? Which graphic indicator should be used to display a color image? I do not want to use Imaq WindDraw.
Thanks in advance.
Hugh

Try this "draw flatten jpg to pic ctrl.vi"
Ian F
Since LabVIEW 5.1... 7.1.1... 2009, 2010
依恩与LabVIEW
LVVILIB.blogspot.com
Attachments:
draw_flatten_jpg_to_pic_ctrl.vi ‏35 KB

Adding Image to a Panel

Dear All,
I am having one problem. I am having an Applet .i want to add an Image to a panel and that Panel i have to add to Applet. how can add any one help pls.
Regards,
Viswa

Create an image icon ImageIcon icon = new ImageIcon("someimage.gif") and then add this to a label JLabel label = new JLabel(icon) then just add this label to your panel.
Cath

Putting an image in a Panel

i have an applet, i want to put an image in a panel. the image(one image) in the panel will also be changable by button event handling.
thank you

You need to follow this steps:
- Create a class who extends Icon class.
- Rewrite paintIcon method using tool in Graphics class (drawImage..)
- Create a JLabel using your cutom icon
- Insert the JLabel into your panel.
That's it!

Saving Image of front panel in an application

See attached image.
Using my source code, I can save the image of the front panel with no problem. However, when i build an application and run this, the image of the front panel does not save. Can anyone help?
Attachments:
Save Image of Front Panel.JPG ‏19 KB

This piece of code does the trick, don't mind the wiring.
André
Message Edited by andre.buurman@carya on 09-17-2007 05:39 PM
Regards,
André
Using whatever version of LV the customer requires. (LV5.1-LV2012) (www.carya.nl)
Attachments:
Top level dir.PNG ‏10 KB

Clearing an Image from a panel

I made an Image object and drew it on a panel using method paintComponent. How can I remove the Image from the panel afterwards?
Thanks

Just use the remove method of the JPanel.
JPanel.remove(imageRefernce);You may also need to call the repaint method as well if it doesn't disapear.

Could not apply background image to the panel group layout in spaces application

I tried to apply background image to the panel group layout with css class and also with inline style such as below
background-image:url('/content/conn/intra-dot-content/path/mywebcenter/lever/backgroundmain.jpg');background-position:center; background-repeat:repeat-y;
The background image does not show up. but it work with panel border layout. Is there any work around for the issue

You can try styleclass, which is always better choice than inlinestyle
page:
<af:panelGroupLayout id="pgl30"
                                   styleClass="testPGbackground">
                <af:outputText value="outputText5" id="ot8"/>
              </af:panelGroupLayout>
css:
.testPGbackground {
    background-image:url('/images/unselectedTabStart.png');
It works for me.
I tried with inline style also and it worked.
bac
<af:panelGroupLayout id="pgl30"
                                   inlineStyle="background-image: url(/incview/images/unselectedTabStart.png);">
                <af:outputText value="outputText5" id="ot8"/>
              </af:panelGroupLayout>
NOTE: You need to mention image url with context-name here, which could be a way of hard coding context name and in future it could be very difficult to change contextname. As recommended styleclass is better solution.
Thanks
Sanjeev

Transfer Image to remote panel

Hello all
I want to transfer Image to Remote Panel.
Must I instull full version of IMAQ Vision to PC with Remote Panel or not?
With respect
Iskander

Hello Iskander,
NI-IMAQ is the driver that allows National Instruments' frame grabber cards to communicate with your computer. This driver allows you to acquire, save, and display images; whereas Vision allows you to process these images. The Vision Development Module includes a license for Vision Acquisition Software.
You can also download Vision Acquisition Software, which includes NI-IMAQ, NI-IMAQ for 1394, and NI-IMAQdx, here:
Regards,
Jasper S

Switching images in a panel

Similar Messages

Maybe you are looking for