"replace" as the 2nd argument. This allows a simpler 'tag add
<command> <value>' than the existing awkward 'tag <command>
"[tag <command>]; <value>'. Using "add" also helps avoid
mistakes like one that was in the code for a long time which
overwrites one of the helper window callbacks. With this done,
added some additional callbacks to the "library manager" to
update when a new file is created by "select save" or "writeall".
Also added "Refresh" buttons to these windows, just in case.
Implemented a zoom function on the mouse scroll wheel when the
Control key is pressed. This is a stop-gap for a problem with
overriding button bindings that re-establish themselves when the
tool (box, wiring, etc.) changes. That needs to have a more
comprehensive solution (such as tool-specific bindings).
contains brackets which are not indicating a cell array. Also
fixed a related issue with the PDK toolkit code, in which the
gencell routines fail if an instance name contains brackets which
are not indicating a cell array.
used in a re-entrant manner. Applied to an existing layout,
it will no longer keep generating new instances and ports over
top existing ones. Could use improvement by attempting to
retain the location of a device when the instance changes
device type (such as when a device parameter was changed in
the netlist). However, the current set of changes should
help, whether the re-entrant use is purposeful or accidental.
correctly handle subcircuits that are used before they are
defined, and will determine whether the imported spice does or
does not contain a top level, and either return to the top level
or any top level cell found in the netlist.
better supports re-entrant use, especially for the use case where
the import was abandoned before saving, or the generated cells
were not saved (which is easy to do, because the top level cell
is always written out to disk, but the rest of the cells will only
be written when "writeall" is executed). The new code detects
input cells that did not have any layout file (has flag "not-found"
after loading) and deletes them and their instances so that they
can be regenerated from scratch.
to pick up properties from an existing cell and prints an error
message instead. This will likely cause non-default properties
of an instance to be lost if the SPICE import is used in a
re-entrant manner (not exactly a common use-case).
bounds should be called whenever an entry is changed and either
the entry window loses focus or the <Enter> key is pressed.
This had ended up disabled when the scrollbar was added to the
dialog window, causing the window hierarchy to change, which
invalidated the regexp used to identify the entry and checkbox
widgets.
generation dialog window. The window is now made to fit the
list of parameters when it is made, but can be reduced in size
which allows the scrollbar to function. Event bindings for the
mouse scrollwheel were added so that it can subsitute for the
scrollbar within the parameter window.
window in the toolkit, which was to the "tkwait" command, which
waits for a change in state. What was intended was to wait for
a change in state to visible only; once visible, the "tkwait"
command should not invoked or else the process will block.
(truly) missing a terminal (such as a MOSCAP made with a gate
extending into but not crossing a diffusion region). Added the
most requested GUI feature, which is a vertical scrollbar on the
parameterized device window (could be improved by maximizing
window height without exceeding display height).
that the feature for implementing callbacks on a selection list
was already implemented via the add_dependency procedure.
Modified the GDS read to remove cell instances that are placed
directly on top of one another in the same cell. Modified the
GDS read to make a better selection of a default font size for
text that specifies a font but not a size, using the minimum
width for the layer the text is placed on. Modified the GDS
read to remove text with empty-string placeholders (created when
a pin layer is read but no text exists to go along with it, due
to GDS not having a specific way to make pins, such that pins
have to be split between one record for geometry and another
for text).
optional argument that is a callback function, so that the act
of selecting something from the drop-down menu can cause things
to happen such as changing the GUI window contents for the item
selected.
conversion, largely converted from the python script in open_pdks,
which itself was derived from an efabless script, and none of
which have been particularly well tested.
Instead of a 6-character suffix generated randomly, the 6-character
suffix is generated by a hash algorithm from the device parameters.
If the cell parameters are changed, then the cell itself changes.
If the instance name was default (derived from the cell name) then
the instance name changes accordingly. The result is that there
cannot be two (auto-)generated cells with the same parameters but
with different cell names.
the bottom in non-interacting areas means that any change in DRC
to a subcell must be handled before checking DRC in the parent.
Previously the order of checks was reversed, moving parent cells
to the beginning of the check list. This prevents the error cited
in the previous commit which was showing up as a delayed DRC check
when creating parameterized cells.
processes "interaction areas". This should eliminate weirdnesses
where errors will fail to show up in a subcell that does not
interact with paint or other subcells in the top level edit cell.
These errors cannot be reported directly in the top level cell,
but a new error message has been created to direct the user to
check the subcell for errors. Also: Modified the toolkit procedures
to force DRC to be run on newly created or modified parameterized
cell layouts. There is some oddity about the process that causes
DRC errors to be delayed unless a print statement is put before the
DRC check; I would like to investigate this further.
from a selection, which can then be used to index into other lists.
This lets one selection be made on a list of arbitrary names, and
then additional parameters can be linked together with the same
index). Also, implemented (finally!) the "offset" parameters of
the "slots" function (as advertised in the documentation).
R. Timothy Edwards