filterview 0.2

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Release Notes

This release should be fully usable as a standard object. It works with multiple instances and also in GOP. It does not save its state at all yet.

Change log

*store filter gain value as gain in pixels, and make gain value survive eraseme/drawme cycles

*refactor vis(), drawme, and new to make for cleaner new vs update handling

*use glist_getcanvas() to send canvas_id to Tcl so GOP works

*set to version 0.2 for next release

*use a fixed resolution of 5 pixels when calculating the response graph

*delete all gain$tag lines before creating in case any exist from previous filtertype

*renamed color vars for consistency

*run set_for_editmode at the end of drawme to properly setup the bindings

*localize filtergain tag to each instance (missed this one before...)

*GUI objects must have a deletefn with canvas_deletelinesfor() or they crash on close

*set initial filter band lines to be relative to the object so they draw correctly

*add a symbol method for setting the filter type