Probably using ClientBundle wrong but can't figure out what is wrong?

[markww]

Hi,

I'm trying to use ClientBundle with an image. My interface:

    public interface MyImages extends ClientBundle {

        @Source("orange.png")

        ImageResource orange();

    }

The image "orange.png" is in the same package as the above class.

Now I try to use it:

    public void drawCanvas() {

        MyImages resources = GWT.create(MyImages.class);

Image orange = new Image(resources.orange());    

        System.out.println("size: " + orange.getWidth() + ", " + orange.getHeight(); // prints 500x500

        ImageElement ie = ImageElement.as(orange.getElement());

        System.out.println("size: " + ie.getWidth() + ", " + ie.getHeight(); // prints 1x1

        

        canvasContext.drawImage(ie, 0, 0);

    }

The Image instance prints its width/height, correct at 500x500 pixels. I try to convert it to an ImageElement so I can draw it to a canvas, it prints its width as 1x1 pixels. Which is incorrect. So of course, nothing gets drawn to the canvas. 

Am I using ClientBundle wrong? I have other methods for loading/drawing the image which work fine. I just wanted to try this interface out,

Thanks

[Alfredo Quiroga]

When you go to draw try passing orange.getElement()

Sent from my iPhone

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[markww]

Hi,

Context2d.drawImage() wants an ImageElement, but orange.getElement() only produces an Element instance. This is why in the example I had:

     ImageElement.as(orange.getElement());

Thanks

On Saturday, 10 November 2012 14:07:27 UTC-5, Alfredo Quiroga-Villamil wrote:

When you go to draw try passing orange.getElement()

Sent from my iPhone

Hi,

I'm trying to use ClientBundle with an image. My interface:

    public interface MyImages extends ClientBundle {

        @Source("orange.png")

        ImageResource orange();

    }

The image "orange.png" is in the same package as the above class.

Now I try to use it:

    public void drawCanvas() {

        MyImages resources = GWT.create(MyImages.class);

Image orange = new Image(resources.orange());    

        System.out.println("size: " + orange.getWidth() + ", " + orange.getHeight(); // prints 500x500

        ImageElement ie = ImageElement.as(orange.getElement());

        System.out.println("size: " + ie.getWidth() + ", " + ie.getHeight(); // prints 1x1

        

        canvasContext.drawImage(ie, 0, 0);

    }

The Image instance prints its width/height, correct at 500x500 pixels. I try to convert it to an ImageElement so I can draw it to a canvas, it prints its width as 1x1 pixels. Which is incorrect. So of course, nothing gets drawn to the canvas. 

Am I using ClientBundle wrong? I have other methods for loading/drawing the image which work fine. I just wanted to try this interface out,

Thanks

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[Alfredo Quiroga-Villamil]

Interesting, I was on my cell phone before, couldn't check to see but could have sworn that it would take an Element. In any case, if it all fails I guess try then:

ImageElement element = ImageElement.as(image.getElement());
element.setWidth(image.getWidth());
element.setHeight(image.getHeight());

Depending on how involved you need to get with canvas stuff, you might also want to take a look at:

http://www.emitrom.com/announcements/lienzo/alpha

Regards,

Alfredo

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Alfredo Quiroga-Villamil

AOL/Yahoo/Gmail/MSN IM:  lawwton