swing - Java efficient overlay over transparent components -



swing - Java efficient overlay over transparent components -

i have custom jcomponent performs come complicated painting. set non-opaque background of parent shows through parts not paint.

i need mouse overlay (a simple shape) follows mouse. shouldn't need repaint component below every time mouse moves. i'm thinking buffer jcomponent because it's non-opaque, calling .paint(buffer) not paint background of parent.

any ideas?

thanks in advance.

i have custom jcomponent performs come complicated painting.

maybe complication painting can done bufferedimage. component draws image don't have invoke complicated code every time. image recreated whenever properties affecting image changed.

java swing overlay

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