How do I draw an image on a JPanel?
To be honest I have no idea even where to start. I tried hacking through the tutorials but it just didn't help me (normally they do, I don't what's up).
Anyway, so what I'm trying to do is build a game. The Graphics2D is great for simple shapes but drawing characters is getting kind of ridiculous (tedious + difficult + looks bad). So, I need to figure out how to display an image on a JPanel.
To that end I have several questions.
1 - What image type do I use? Like jpeg, bmp, gif, etc.
2 - How do I make parts of it transparent?
3 - How do I make it appear on the screen, given some coordinates on the JPanel?
To draw an image directly to a JPanel given certain coordinates, you have to create a custom JPanel and override its paintComponent() method. Like this:
class PaintPanel extends JPanel{
public void paintComponent(Graphics g){
super.paintComponent(g);
//painting code goes here}
}Java can load in and draw GIF and JPEG images. If you decide to use GIF files, any good image editor like Adobe Photoshop should be able to make them transparent for you before the fact. If you want to set transparency within your java program you will have to create a BufferedImage and make certain colors within it transparent, but I would like to know how to do that as much as you do.
Similar Messages
-
Help!How can i draw an image that do not need to be displayed?
I want to draw an image and save it as an jpeg file.
first I have to draw all the elements in an image object.I write a class inherit from Class Component,I want to use the method CreateImage,but I get null everytime.And i cannot use the method getGraphics of this object.Thus i can not draw the image.
when i use an applet,it runs ok.I use panel and frame,and it fails.
How can i draw an image without using applet,because my programme will be used on the server.
Thank you.you could try this to create the hidden image
try
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice gs = ge.getDefaultScreenDevice();
GraphicsConfiguration gc = gs.getDefaultConfiguration();
offImage = gc.createCompatibleImage(100, 100);
offG = offImage.getGraphics();
catch(Exception e)
System.out.println(e.getMessage());
} -
How to draw an Image on a JPanel?
Hi all,
Can any one give code for drawing an image on a JPanel?
thanks,
amarThat's for the JLabel right? ... For a JPanel on a JFrame, you could do something like this:
import java.awt.*;
import java.awt.image.*;
import javax.swing.*;
import javax.swing.event.*;
import java.io.*;
import java.net.URL;
public class TestImagePaint extends JFrame {
private BjPanel bjp;
public TestImagePaint( String imageName ) throws IllegalArgumentException {
if ( imageName == null || !( new File( imageName ).isFile() ) ) {
throw new IllegalArgumentException( "\nIn TestImagePaint constuctor"
+"\t IllegalArgumentException:" );
bjp = new BjPanel( imageName );
getContentPane().add( bjp );
setDefaultCloseOperation(EXIT_ON_CLOSE);
pack();
setBounds( 100, 100, 400, 300 );
setVisible( true );
public static void main( String[] argv ) {
new TestImagePaint( argv[0] );
public class BjPanel extends JPanel {
private URL url;
private Image image;
public BjPanel( String imageName ) {
try {
url = BjPanel.class.getResource( imageName );
image = Toolkit.getDefaultToolkit().getImage( url );
repaint();
catch( Exception e ) {
System.out.println( "Can't get Image: "+imageName+"\n\t"+e );
System.exit( -1 );
public void paint(Graphics g) {
g.drawImage( image, 0, 0, this );
} -
How can I draw an image in the browser using mouse
I have to draw an image in the browser and have to store a file in the server and I don't know how can I do it. Is there anybody who konw it.
Components other than applets cannot be downloaded into client machines
unleess There is a Java Web Start kind of Mechanism present on client and the server also supports
this .Hence your application is between Applet ---Xdownloadable ApplicationXX ---- traditinal Application -
How to draw an image on transparent JPanel?
I want to draw an image on the transparent JPanel. How to do it?
I do like this:
( In constructor )
setOpaque(false);
String imageName = "coral.jpg";
iimage_Bg = Toolkit.getDefaultToolkit().getImage(imageName);
( In paintComponent( Graphics g ) )
Graphics2D g2D = (Graphics2D) g;
g2D.drawImage( iimage_Bg, 0, 0, getWidth() , getHeight() , Color.white, null );
But it doesn't work. Please help me!
Thank you very much.
coral9527Check the values that are returned from getWidth() and getHeight(). If they either are zero, then paintComponent(Graphics g) never gets called by the components paint(Graphics g) method. I cannot see the how this component has been added or displayed so can give no advice on how you can guarantee getting a valid size. If you have simply added it to a JFrame and called pack(), the size will be zero, as the panel does not contain any components (you would not have this problem if you were adding a JLabel with an ImageIcon for example). Try not packing the frame, and giving it a valid size.
-
How can I draw an image when the mouse is clicked
I am trying to draw X's and O's for a tic-tac-toe board and I cannot conceptualize how to get the X or O to appear if the mouse is pressed on an individual [row][col].
Im using the MouseListener with a mouseAdapter as an inner class of paintComponent. Using the mousePressed method I want to draw the X or O when one square detects a mousepress
How can I get the image on the partiuclar square. Im stumped presently. Any help is appreciated
Thanks.import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class TicTacToe extends JPanel
Rectangle[] cells;
int[] hits;
final int
GRID = 3,
PAD = 25;
public TicTacToe()
// jvm initializes all elements to zero by default
hits = new int[GRID * GRID];
protected void paintComponent(Graphics g)
super.paintComponent(g);
Graphics2D g2 = (Graphics2D)g;
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
int w = getWidth();
int h = getHeight();
int xInc = (w - 2*PAD)/GRID;
int yInc = (h - 2*PAD)/GRID;
if(cells == null)
initCells(xInc, yInc);
// vertical lines
int x1 = PAD + xInc, y1 = PAD, x2 = w-PAD, y2 = h-PAD;
for(int j = 0; j < GRID-1; j++)
g2.drawLine(x1, y1, x1, y2);
x1 += xInc;
// horizontal lines
x1 = PAD; y1 = PAD + yInc;
for(int j = 0; j < GRID-1; j++)
g2.drawLine(x1, y1, x2, y1);
y1 += yInc;
// draw hits
g2.setPaint(Color.red);
for(int j = 0, side = 30; j < hits.length; j++)
if(hits[j] == 1)
int row = j / GRID;
int col = j % GRID;
int x = PAD + xInc/2 + col * xInc - side/2;
int y = PAD + yInc/2 + row * yInc - side/2;
g2.fillRect(x, y, side, side);
//g2.setPaint(Color.blue);
//for(int j = 0; j < cells.length; j++)
// g2.draw(cells[j]);
public void addHit(int cellIndex)
hits[cellIndex] = 1;
repaint();
private void initCells(int width, int height)
cells = new Rectangle[GRID * GRID];
for(int row = 0; row < GRID; row++)
for(int col = 0; col < GRID; col++)
int index = col + row * GRID;
int x = PAD + col * width;
int y = PAD + row * height;
cells[index] = new Rectangle(x, y, width, height);
public static void main(String[] args)
TicTacToe ticTacToe = new TicTacToe();
Selector selector = new Selector(ticTacToe);
ticTacToe.addMouseListener(selector);
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.getContentPane().add(ticTacToe);
f.setSize(400,400);
f.setLocation(200,200);
f.setVisible(true);
class Selector extends MouseAdapter
TicTacToe ticTacToe;
public Selector(TicTacToe ttt)
ticTacToe = ttt;
public void mousePressed(MouseEvent e)
Point p = e.getPoint();
Rectangle[] r = ticTacToe.cells;
for(int j = 0; j < r.length; j++)
if(r[j].contains(p))
ticTacToe.addHit(j);
break;
} -
How do I draw an image through a rectangle?
I have worked with c# in the past, and i remember being able to draw an image but drawing it within the bounds of the rectangle. I would do this so collision detection was easy. Any suggestions?
btw since im so very new to the language, i am even having trouble with g.drawImage stuff :(
any help would be amazing -_-hollow wrote:
hmm ya i was messing around with that already, i guess im just retarded. i will keep looking thanks! ><No, you are not retarded. You are just incredibly impatient. Take a step back and ease yourself into the language. Take the time to read some articles while you're at it. I would also take a look at JavaFX2, it is a more modern approach to client application development and is less clunky than Java2D with a very active community. It might be that you are more comfortable with it. -
How do you change the image in a JPanel?
Hey! (firstly, i need to use image on a JPanel, label&icon not an option).
I've made my JPanel class
public class DrawingPanel extends JPanel {
Image img;
DrawingPanel() {
Image img = Toolkit.getDefaultToolkit().getImage("13.jpg"); //default image at startup
public void paintComponent (Graphics g) {
super.paintComponent (g);
// Use the image width & height to find the starting point
int imgX = getSize ().width/2 - img.getWidth (this);
int imgY = getSize ().height/2 - img.getHeight (this);
//Draw image centered in the middle of the panel
g.drawImage (img, 0, 0, this);
} // paintComponent
} // DrawingPanelAnd I've made my instance of it and added it to the Frame:
DrawingPanel imagePanel = new DrawingPanel();Now, I need to change the image on the JPanel according to the user's input. I have the string of the location of the new image. How do I update the JPanel to display this new image? Any help greatly appreciated!!Well... You could just add a method in your class which sets the image according to the new image name you provided. Something like this:
public class DrawingPanel extends JPanel {
Image img;
DrawingPanel() {
img = Toolkit.getDefaultToolkit().getImage("13.jpg"); //default image at startup
public void setImage(String imageName) {
img = Toolkit.getDefaultToolkit().getImage(imageName); //Loading the desired image
public void paintComponent (Graphics g) {
super.paintComponent (g);
// Use the image width & height to find the starting point
int imgX = getSize ().width/2 - img.getWidth (this);
int imgY = getSize ().height/2 - img.getHeight (this);
//Draw image centered in the middle of the panel
g.drawImage (img, 0, 0, this);
} // paintComponent
} // DrawingPanel -
How to use a backgroud image in a JPanel.....
hi,
How can I display a background image for a JPanel.....
I have searched this forum but all solutions I found are where JPanel at the end has to be displayed on a frame in an application...
I need to use JPanel on Applet.......
Actually I am switching JPanels on JApplet as screens for a game....
I need to display background image for one of the JPanel class that has to be called by an Applet class....
Thanks a lot for any help.Thanks a lot for your help.
How do we specify URL to use an image from net. Is itt like I open an image file on some website & use its address? Kindly add here some website too so that its more clear for me.
Thanks a lot for any help & all help your provided previously.
String imageFilePath = "urlOfMyImageFile"; // I am asking about parameter to be used here
ImageIcon ii = new ImageIcon(imageFilePath);
Image image = ii.getImage(); -
How do you draw an image into a certain field in applet layout?
i need to to take a image drawn from a function and place it in the "center" field of a borderlayout applet...
Check out the link shown below for a complete example on how to do this:
http://forum.java.sun.com/thread.jsp?forum=31&thread=226875
V.V. -
How can I draw a image in transparent mode
I write a applet which derived from JApplet. I want to draw a icon on It's content panel transparently, but it seems that ImageIcon can't handle *.ico.
What should I do?It's solved.
.gif can do this thing. -
How do I save an image to a canvas of JPanel
I have an application. It takes the graphics of a JPanel and converts them into png format. I can get the image back and convert it into a bufferedimage. I know this because I use imageio and write it to png format and checked that it is saved. But I cannot draw the image on the JPanel. I makes absolutley no difference if I use a JPanel or Canvas. If someone could tell me how to this as I am getting compile time errors every way I try it and I have to have it finished very soon. If anyone could tell me how to do it I would really appreciate it. I have been searching the forums and internet but I cannot find an example.
Regards,
SeamusHere's some code I'm using that successfully loads an image and draws it on either a JPanel or a Canvas (I've used both):
public BufferedImage image=null;
public DrawingPanel canvas=null; // DrawingPanel is my class that extends JPanel
// ... code to create frames and panels
canvas = new DrawingPanel();
public LoadImage()
// Load the image as a BufferedImage
try
image = ImageIO.read(new File("Imagefile.png"));
try
MediaTracker mediaTracker = new MediaTracker(canvas);
mediaTracker.addImage(image,0);
mediaTracker.waitForID(0);
catch (InterruptedException ie)
System.err.println(ie);
catch (IOException e)
private class DrawingPanel extends JPanel
public void paintComponent(Graphics g)
// Get 2D graphics context
Graphics2D g2D = (Graphics2D) g;
// Draw the image on a JPanel
g2D.drawImage(image,0,0,this);
}HTH! -
How can we draw circles,images in flex? (ex as in
ms-paint)http://livedocs.adobe.com/flex/3/html/help.html?content=Drawing_Vector_Graphics_1.html
-
How to use the Rectangle class to draw an image and center it in a JPanel
I sent an earlier post on how to center an image in a JPanel using the Rectangle class. I was asked to send an executable code which will show the malfunction. The code below is an executable code and a small part of a very big project. To simplifiy things, it is just a JFrame and a JPanel with an open dialog. Once executed the JFrame and the FileDialog will open. You can then navigate to a .gif or a .jpg picture and open it. What I want is for the picture to be centered in the middle of the JPanel and not the upper left corner. It is also important to stress that, I am usinig the Rectangle class to draw the Image. The region of interest is where the rectangle is created. In the constructor of the CenterRect class, I initialize the Rectangle class. Then I use paintComponent in the CenterRect class to draw the Image. The other classes are just support classes. The MyImage class is an extended image class which also has a draw() method. Any assistance in getting the Rectangle to show at the center of the JPanel without affecting the size and shape of the image will be greatly appreciated.
I have divided the code into three parts. They are all supposed to be on one file in order to execute.
import java.awt.*;
import java.awt.image.*;
import javax.swing.*;
public class CenterRect extends JPanel {
public static Rectangle srcRect;
Insets insets = null;
Image image;
MyImage imp;
private double magnification;
private int dstWidth, dstHeight;
public CenterRect(MyImage imp){
insets = getInsets();
this.imp = imp;
int width = imp.getWidth();
int height = imp.getHeight();
ImagePanel.init();
srcRect = new Rectangle(0,0, width, height);
srcRect.setLocation(0,0);
setDrawingSize(width, height);
magnification = 1.0;
public void setDrawingSize(int width, int height) {
dstWidth = width;
dstHeight = height;
setSize(dstWidth, dstHeight);
public void paintComponent(Graphics g) {
Image img = imp.getImage();
try {
if (img!=null)
g.drawImage(img,0,0, (int)(srcRect.width*magnification), (int)(srcRect.height*magnification),
srcRect.x, srcRect.y, srcRect.x+srcRect.width, srcRect.y+srcRect.height, null);
catch(OutOfMemoryError e) {e.printStackTrace();}
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Opener().openImage();
class Opener{
private String dir;
private String name;
private static String defaultDirectory;
JFrame parent;
public Opener() {
initComponents();
public void initComponents(){
parent = new JFrame();
parent.setContentPane(ImagePanel.panel);
parent.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
parent.setExtendedState(JFrame.MAXIMIZED_BOTH);
parent.setVisible(true);
public void openDialog(String title, String path){
if (path==null || path.equals("")) {
FileDialog fd = new FileDialog(parent, title);
defaultDirectory = "dir.image";
if (defaultDirectory!=null)
fd.setDirectory(defaultDirectory);
fd.setVisible(true);
name = fd.getFile();
if (name!=null) {
dir = fd.getDirectory();
defaultDirectory = dir;
fd.dispose();
if (parent==null)
return;
} else {
int i = path.lastIndexOf('/');
if (i==-1)
i = path.lastIndexOf('\\');
if (i>0) {
dir = path.substring(0, i+1);
name = path.substring(i+1);
} else {
dir = "";
name = path;
public MyImage openImage(String directory, String name) {
MyImage imp = openJpegOrGif(dir, name);
return imp;
public void openImage() {
openDialog("Open...", "");
String directory = dir;
String name = this.name;
if (name==null)
return;
MyImage imp = openImage(directory, name);
if (imp!=null) imp.show();
MyImage openJpegOrGif(String dir, String name) {
MyImage imp = null;
Image img = Toolkit.getDefaultToolkit().getImage(dir+name);
if (img!=null) {
imp = new MyImage(name, img);
FileInfo fi = new FileInfo();
fi.fileFormat = fi.GIF_OR_JPG;
fi.fileName = name;
fi.directory = dir;
imp.setFileInfo(fi);
return imp;
}This is the second part. It is a continuation of the first part. They are all supposed to be on one file.
class MyImage implements ImageObserver{
private int imageUpdateY, imageUpdateW,width,height;
private boolean imageLoaded;
private static int currentID = -1;
private int ID;
private static Component comp;
protected ImageProcessor ip;
private String title;
protected Image img;
private static int xbase = -1;
private static int ybase,xloc,yloc;
private static int count = 0;
private static final int XINC = 8;
private static final int YINC = 12;
private int originalScale = 1;
private FileInfo fileInfo;
ImagePanel win;
/** Constructs an ImagePlus from an AWT Image. The first argument
* will be used as the title of the window that displays the image. */
public MyImage(String title, Image img) {
this.title = title;
ID = --currentID;
if (img!=null)
setImage(img);
public boolean imageUpdate(Image img, int flags, int x, int y, int w, int h) {
imageUpdateY = y;
imageUpdateW = w;
imageLoaded = (flags & (ALLBITS|FRAMEBITS|ABORT)) != 0;
return !imageLoaded;
public int getWidth() {
return width;
public int getHeight() {
return height;
/** Replaces the ImageProcessor, if any, with the one specified.
* Set 'title' to null to leave the image title unchanged. */
public void setProcessor(String title, ImageProcessor ip) {
if (title!=null) this.title = title;
this.ip = ip;
img = ip.createImage();
boolean newSize = width!=ip.getWidth() || height!=ip.getHeight();
width = ip.getWidth();
height = ip.getHeight();
if (win!=null && newSize) {
win = new ImagePanel(this);
public void draw(){
CenterRect ic = null;
win = new ImagePanel(this);
if (win!=null){
win.addIC(this);
win.getCanvas().repaint();
ic = win .getCanvas();
win.panel.add(ic);
int width = win.imp.getWidth();
int height = win.imp.getHeight();
Point ijLoc = new Point(10,32);
if (xbase==-1) {
xbase = 5;
ybase = ijLoc.y;
xloc = xbase;
yloc = ybase;
if ((xloc+width)>ijLoc.x && yloc<(ybase+20))
yloc = ybase+20;
int x = xloc;
int y = yloc;
xloc += XINC;
yloc += YINC;
Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
count++;
if (count%6==0) {
xloc = xbase;
yloc = ybase;
int scale = 1;
while (xbase+XINC*4+width/scale>screen.width || ybase+YINC*4+height/scale>screen.height)
if (scale>1) {
originalScale = scale;
ic.setDrawingSize(width/scale, height/scale);
/** Returns the current AWT image. */
public Image getImage() {
if (img==null && ip!=null)
img = ip.createImage();
return img;
/** Replaces the AWT image, if any, with the one specified. */
public void setImage(Image img) {
waitForImage(img);
this.img = img;
JPanel panel = ImagePanel.panel;
width = img.getWidth(panel);
height = img.getHeight(panel);
ip = null;
/** Opens a window to display this image and clears the status bar. */
public void show() {
show("");
/** Opens a window to display this image and displays
* 'statusMessage' in the status bar. */
public void show(String statusMessage) {
if (img==null && ip!=null){
img = ip.createImage();
if ((img!=null) && (width>=0) && (height>=0)) {
win = new ImagePanel(this);
draw();
private void waitForImage(Image img) {
if (comp==null) {
comp = ImagePanel.panel;
if (comp==null)
comp = new JPanel();
imageLoaded = false;
if (!comp.prepareImage(img, this)) {
double progress;
while (!imageLoaded) {
if (imageUpdateW>1) {
progress = (double)imageUpdateY/imageUpdateW;
if (!(progress<1.0)) {
progress = 1.0 - (progress-1.0);
if (progress<0.0) progress = 0.9;
public void setFileInfo(FileInfo fi) {
fi.pixels = null;
fileInfo = fi;
} -
How can I draw image in a vbean?
How can I draw image in a vbean?
this is my code :
import java.awt.BorderLayout;
import java.awt.Image;
import java.awt.Graphics;
import java.net.MalformedURLException;
import java.net.URL;
import com.sun.jimi.core.Jimi;
import oracle.forms.handler.IHandler;
import oracle.forms.properties.ID;
import oracle.forms.ui.VBean;
public class PrintEmailLogo extends VBean {
URL url;
Image img;
boolean ImageLoaded = false;
public void paint(Graphics g) {
if (ImageLoaded) {
System.out.println("yes~~~");
g.drawImage(img, 0, 0, null);
} else
System.out.println("no~~~");
public boolean imageUpdate(Image img, int infoflags, int x, int y, int w,
int h) {
if (infoflags == ALLBITS) {
System.out.println("yes");
ImageLoaded = true;
repaint();
return false;
} else
return true;
public void init(IHandler arg0) {
super.init(arg0);
try {
url = new URL("file:print/77G.gif");
img = Jimi.getImage(url);
Image offScreenImage = createImage(size().width, size().height);
Graphics offScreenGC = offScreenImage.getGraphics();
System.out.println(offScreenGC.drawImage(img, 0, 0, this));
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
but when I run it in forms
when it run Graphics offScreenGC = offScreenImage.getGraphics();
It throw a exception:
java.lang.NullPointerException at com.avicit.aepcs.calendar.PrintEmailLogo.init(PrintEmailLogo.java:72) at oracle.forms.handler.UICommon.instantiate(Unknown Source) at oracle.forms.handler.UICommon.onCreate(Unknown Source) at oracle.forms.handler.JavaContainer.onCreate(Unknown Source) at oracle.forms.engine.Runform.onCreateHandler(Unknown Source) at oracle.forms.engine.Runform.processMessage(Unknown Source) at oracle.forms.engine.Runform.processSet(Unknown Source) at oracle.forms.engine.Runform.onMessageReal(Unknown Source) at oracle.forms.engine.Runform.onMessage(Unknown Source) at oracle.forms.engine.Runform.processEventEnd(Unknown Source) at oracle.ewt.lwAWT.LWComponent.redispatchEvent(Unknown Source) at oracle.ewt.lwAWT.LWComponent.processEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source)
I change it to:
import java.awt.BorderLayout;
import java.awt.Image;
import java.awt.Graphics;
import java.net.MalformedURLException;
import java.net.URL;
import javax.swing.JFrame;
import com.sun.jimi.core.Jimi;
import oracle.forms.handler.IHandler;
import oracle.forms.properties.ID;
import oracle.forms.ui.VBean;
public class PrintEmailLogo extends VBean {
URL url;
Image img;
public void paint(Graphics g) {
try {
url = new URL("file:print/77G.gif");
img = Jimi.getImage(url);
g.drawImage(img, 0, 0, this));
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
public void init(IHandler arg0) {
super.init(arg0);
But it display nothing.
It isn't paint continuous.
what's wrong in my vbean?
please help me.The following code works fine for me:
package oracle.forms.fd;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import oracle.forms.handler.IHandler;
import oracle.forms.properties.ID;
import oracle.forms.ui.CustomEvent;
import oracle.forms.ui.VBean;
public class test extends VBean {
private URL url;
private URL m_codeBase;
private Image img;
public void paint(Graphics g) {
// draw the image
g.drawImage(img, 0, 0, this);
public void init(IHandler arg0) {
super.init(arg0);
// load image file
img = loadImage("file:///c:/coyote.jpg");
public test()
super();
* Load an image from JAR file, Client machine or Internet URL *
private Image loadImage(String imageName)
URL imageURL = null;
boolean loadSuccess = false;
Image img = null ;
//JAR
imageURL = getClass().getResource(imageName);
if (imageURL != null)
try
img = Toolkit.getDefaultToolkit().getImage(imageURL);
loadSuccess = true;
return img ;
catch (Exception ilex)
System.out.println("Error loading image from JAR: " + ilex.toString());
else
System.out.println("Unable to find " + imageName + " in JAR");
//DOCBASE
if (loadSuccess == false)
System.out.println("Searching docbase for " + imageName);
try
if (imageName.toLowerCase().startsWith("http://")||imageName.toLowerCase().startsWith("https://"))
imageURL = new URL(imageName);
else if(imageName.toLowerCase().startsWith("file:"))
imageURL = new URL(imageName);
else
imageURL = new URL(m_codeBase.getProtocol() + "://" + m_codeBase.getHost() + ":" + m_codeBase.getPort() + imageName);
System.out.println("Constructed URL: " + imageURL.toString());
try
img = createImage((java.awt.image.ImageProducer) imageURL.getContent());
loadSuccess = true;
System.out.println("Image found: " + imageURL.toString());
return img ;
catch (Exception ilex)
System.out.println("Error reading image - " + ilex.toString());
catch (java.net.MalformedURLException urlex)
System.out.println("Error creating URL - " + urlex.toString());
//CODEBASE
if (loadSuccess == false)
System.out.println("Searching codebase for " + imageName);
try
imageURL = new URL(m_codeBase, imageName);
System.out.println("Constructed URL: " + imageURL.toString());
try
img = createImage((java.awt.image.ImageProducer) imageURL.getContent());
loadSuccess = true;
System.out.println("Image found: " + imageURL.toString());
return img ;
catch (Exception ilex)
System.out.println("Error reading image - " + ilex.toString());
catch (java.net.MalformedURLException urlex)
System.out.println("Error creating URL - " + urlex.toString());
if (loadSuccess == false)
System.out.println("Error image " + imageName + " could not be located");
return img ;
}Francois
Maybe you are looking for
-
Upgrading Win7 32-bit to Win7 64-bit
I really don't know if this is the correct category since I'm new here. Anyways I plan on upgrading my 32-bit Win7 to a 64-bit version. Yes my system is capable of installing it. But i have read around that if you upgrade 32 to 64 you could choose th
-
Send PDF form IPad document doesnt appear in email.
I use the Ipad for sending PDF's to clients and internal coworkers the emial looks like it makes it out looking at the sent mail from the ipad but the attachment is compromized - outlook user says "no attachment" If I save a draft of the email first
-
Hi Experts I have a requirement where i need to populate the me21n shopping basket with a Purchase requisition, since i have to create a PO with reference to the PR. The me21n transaction is invoked using call transaction from a workflow method. I wa
-
How do I create a 3D pyramid using Illustrator CC?
I have been trying to create a 3D pyramid using Illustrator CC. All the tutorials I have found have been telling me I need to create a custom bevel, but the Bevels.ai file is not in the plugins folder as it used to be. How do I create a custom bevel
-
Error downloading Master Collection "image not recognized".
I'm trying to upgrade to the Adobe CS6 Master Collection for my Macbook Pro, but when I download the file from here: Download CS6 products (in English), I get an error that says, "image not recognized", once downloaded and I try to open it. So, how d