Re: Displaying Images

From:

"cjavatalk" <cjavatalk@THRWHITE.remove-dii-this>

Newsgroups:

comp.lang.java.gui

Date:

Wed, 27 Apr 2011 15:30:58 GMT

Message-ID:

<1172361289.337228.245520@h3g2000cwc.googlegroups.com>

To: comp.lang.java.gui
On Feb 18, 7:13 pm, "Sean C." <BrknSh...@gmail.com> wrote:

Hey, All!

I'm writing a rather complex GUI program using Java 6 and NetBeans IDE
5.5. My project is coming along sharply, but I'm getting hung up on the
simplest of concepts.

I've read the tutorials, looked at the source code to them, searched the
net, read tons of source code and can't seem to make it work in my
project. What I'm talking about is simply displaying a picture on an
element of my forms.

For example, displaying a graphic on my About screen that is related to
the program. Or, showing screenshots that are previews of the various
themes for the Metal look and feel that I have already made.

I've got these images stored under my project source tree in a folder
called resources, but as far as I can tell, the only way these images get
compiled into the resources folder in the JAR are if they are actually
loaded at design time in the IDE.

I don't mind if I have to add these images to the JAR after I've compiled,
if I'm able to load them at runtime. I've tried loading them using a
path-like string, but that doesn't work. I've tried loading them using
getResource() and that doesn't seem to work as well.

I've been pouring over the JavaDocs for the APIs and I'm just getting more
and more confused. I've seen constructors that require an Icon object,
but when I look up that Icon object, it seems to want anImageobject for
its constructor. And when I looked upImage, it didn't want a string
either. I've tried building the path using an URL object and can't seem
to get any of this to work.

If someone could please post a code snippet that shows how to load animagefile from the resources folder of the JAR file into a LayeredPane
object (or another object that may work better), I would greatly appreciate
it. It's driving me crazy that the simplest thing (nice-to-have, but *not*
needed) is bogging me down.

Thank you all for your time in reading this very long-winded message. I
hope to hear from some of you in the near future. Have a great day.

Cheers,

Sean

Hope this
helps////////////////////////////////////////////////////////////////////
protected final ImageIcon completeIcon = createImageIcon("Images/
Complete16.gif");
///////////////////////////////////////////////////////////////////////////////////
  private static ImageIcon createImageIcon(String path)
  {
      //imgURL is the loading path of where in the system the picture
is located
      java.net.URL imgURL = RRStartUp.class.getResource(path);
      if (imgURL != null)
      {
          //sets the image icon in frame top left

          return new ImageIcon(imgURL);
        }
        else
        {
          System.err.println("Couldn't find file: " +
RRStartUp.class.getResource(path));
          return null;
        }
      }
      private static Image getFDImage()
      {
          //imgURL is the loading path of where in the system the
picture is located
          //RRStartUp is your main class
          java.net.URL imgURL = RRStartUp.class.getResource("Images/
medImage.jpg");
          if (imgURL != null)
          {
              //sets the picture in content pane
              return new ImageIcon(imgURL).getImage();

            }
            else
            {
              return null;
            }
     }

//////////////////////////////////////////////////////////////////////////////////
you can do this :
//////////////////////////////////////////////////////////////////////////////////
JButton complete = new JButton(" Completion ", completeIcon);
/////////////////////////////////////////////////////////////////////////////////
Or:
/////////////////////////////////////////////////////////////////////////////////
ImageIcon secImage = createImageIcon("Images/ChangePassword.jpg");
JLabel picture2 = new JLabel();

          if (secImage != null)
          {
              //////// create a object label to hold first image
              picture2 = new JLabel(secImage);
              //sets picture in pictureLabel
              picture2.setIcon(secImage);
            }
/////////////////////////////////////////////////////////////////////////////////
then set it to a panel:
/////////////////////////////////////////////////////////////////////////////////
panel.add(picture2, BorderLayout.CENTER);
/////////////////////////////////////////////////////////////////////////////////

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