Home/ Questions/Q 7874851
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-03T02:52:55+00:00

In the pure Java version, calling width() or height() on Image or on ImageLayer

  • 0

In the pure Java version, calling width() or height() on Image or on ImageLayer works. But with HTML5 backend I get zero if I call it too early.

Image image = assets().getImage("images/myimage.png"); 
ImageLayer layer = graphics().createImageLayer(image);
float w1 = image.width(); 
float w2 = layer.width();

I tried right after the getImage() in the initialization code of the game and also from the paint() method, the first time paint() is called. But I always get zero with the HTML5 backend (Chrome, MacOs).
However, if I call width() after the second call to the paint() method I get the correct width.
So it seems that with the HTML5 backend the semantics is different: the width() method returns the correct width of an image / layer after it has been rendered a first time.

Is my interpretation correct and how to get the size before rendering?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Have you tried using the AssetWatcher? It looks like those first width calls are outracing the document’s ability to load the image.

    Here’s a simple example of the AssetWatcher in action:

    And here’s an implementation of AssetWatcher from the PlayN Showcase sample:

    • 0