Did you try using the onload event in GWT, like you did in the JS?
For example:
public class MyTest implements EntryPoint {
public void onModuleLoad() {
final Image testImg = new Image("http://i.cdn.turner.com/
cnn/.element/img/3.0/global/header/hdr-main.gif?nocache=" +
Math.random());
RootPanel.get().add(testImg);
printImageWidth(testImg); // will print 0
testImg.addLoadHandler(new LoadHandler() {
public void onLoad(LoadEvent event) {
printImageWidth(testImg); // will print a number
}
});
}
public void printImageWidth(Image image) {
System.out.println("image width is: " + image.getWidth());
}
}
On Mar 23, 12:30 pm, Brandon Donnelson <[email protected]>
wrote:
> Is there a way to get the width via the java code? I've documented it
> and made an issue:
>
> Issue:http://code.google.com/p/google-web-toolkit/issues/detail?id=3999&can...
>
> Getting images size width and height attributes does not work in GWT
> Image.
>
> GWT 2.2.0, Mac OSX, Chrome 10.0.648.151
>
> This will not work:
>
> Image testImg = new Image("/images/test.jpg");
>
> FlowPanel panel = new FlowPanel();
> RootPanel.get().add(panel);
> panel.add(testImg);
>
> System.out.println("testImg.getElement.getOffsetWidth=" +
> testImg.getElement().getOffsetWidth()); // nope
> System.out.println("testImg.getWidth=" + testImg.getWidth()); //
> nope
>
> System.out.println("panel.getOffsetWidth()=" +
> panel.getOffsetWidth()); // gets the windows/document/body width if
> image overflows
> System.out.println("panel.getOffsetHeight()=" +
> panel.getOffsetHeight()); // gets the windows/document/body width if
> the image overflows
> System.out.println("root width:" +
> RootPanel.get().getOffsetWidth()); // gets the windows/document/body
> width width if the image overflows
>
> This does work in native javascript:
> <script>
> function getWidthAndHeight() {
> alert("'" + this.name + "' is " + this.width + " by " + this.height
> + " pixels in size.");
> return true;}
>
> function loadFailure() {
> alert("'" + this.name + "' failed to load.");
> return true;}
>
> var myImage = new Image();
> myImage.name = "/images/test.jpg";
> myImage.onload = getWidthAndHeight;
> myImage.onerror = loadFailure;
> myImage.src = "/images/test.jpg";
> </script>
>
> Brandon Donnelsonhttp://gwt-examples.googlecode.comhttp://c.gawkat.com
--
You received this message because you are subscribed to the Google Groups
"Google Web Toolkit" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/google-web-toolkit?hl=en.
