Steffen Otto wrote:
I am using JSVGCanvas to show some text data from a database. I am using a progressbar to indicate the working progress. At this time I use GVTTreeRendererAdapter > gvtRenderingCompleted(GVTTreeRendererEvent e) event to get the end of rendering and set my progressbar to 100%. But itīs not so good because my progressbar stands still for a time. Did anybody know a better way to indicate the progress continously from rendering start to rendering end?
There really isn't a way currently.
For this to happen you would have to have the 'paint' methods of the various elements in the GVT tree call an event handler. This would likely add a noticeable amount of overhead to rendering. You would also then need a count of the total number of objects in the GVT tree. This is something that could be added to the source relatively unobtrusively but I can't really see a truly 'clean' way to pull it off (you would have to modify Batik sources).
There is an option to do 'progressive' painting where the document is updated to the screen as it is drawn (it's been a while so there is some possibility of bitrot here). This would give users some feedback as drawing progresses.
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