I am not sure what is a proper way to close JSVGCanvas, and all its inner objects and threads. Do I have to use "stopProcessing" method or is calling of "dispose" method sufficient?. I want to free all image caches too. Does method flushImageCache() from JSVGComponent fulfil my needs or do I need to call flush() from JGVTComponent?
In what order should I call these methods?
I am also curious if it is safe to call above mentioned methods before my JSVGCanvas is fully started (ie before gvtBuildCompleted, gvtRenderingCompleted methods are called).
I think that is important because i occassionally ran into an exception (in 1.5.1 release):
java.lang.NullPointerException
at org.apache.batik.swing.svg.JSVGComponent.stopThenRun(JSVGComponent.java:606)
at org.apache.batik.swing.svg.JSVGComponent.setSVGDocument(JSVGComponent.java:575)
at org.apache.batik.swing.svg.JSVGComponent.dispose(JSVGComponent.java:364)
I think that the whole JSVGCanvas lifecycle is a bit complicated. I haven't found any detailed description of it, so it is not obvious for me which methods may be called asynchronously on JSVGCanvas and when they may be called.
I have also a short question about listeners related to JSVGCanvas object.Is it true that all methods in listeners registered on JSVGCanvas events (for example in GVTTreeRendererListeners) are invoked from AWT event dispatching thread? I discovered it recently and I am not sure if it is an intentional behaviour.
Lukasz Matuszczak
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