ElementsPanelWidget::duplicateDiagram() round-trips the folio through XML
and then gives the copied *elements* fresh uuids, because element.uuid is
the primary key of the project database and a duplicate silently fails to
insert. Conductors now have the same problem and needed the same loop:
conductor.uuid is likewise a primary key, its insert is a plain INSERT
rather than INSERT OR IGNORE, and a failure only reaches qDebug(). Without
this, every wire on a duplicated folio is missing from the wiring list and
from the per-element wire count, with nothing shown to the user.
Verified against the real schema: inserting the same conductor uuid for a
second folio fails with "UNIQUE constraint failed: conductor.uuid", leaving
one row where two were expected.
Also harden the uuid read in Conductor::fromXml(). The default argument of
QDomElement::attribute() is evaluated whether or not the attribute exists,
so a uuid was minted for every conductor on every load and thrown away; and
the default only applies when the attribute is *absent*, so a present but
empty or malformed uuid="" parsed to a null QUuid rather than a fresh one --
and null uuids collide with each other exactly as duplicates do.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Slice 1 of discussion #503 (from-to wiring list built on projectDataBase).
Conductor is the one item type on a diagram without a stable identity
of its own -- Element and Diagram both have a uuid, Conductor didn't.
This is the prerequisite the wiring-list tables need: a conductor
table keyed by uuid, the same way the existing element table is keyed
by Element::uuid().
- Conductor gets a QUuid m_uuid, generated in the constructor, with
uuid()/newUuid() accessors mirroring Element's exact pattern.
- toXml()/fromXml() read/write a "uuid" attribute the same way
Element already does, including the same generate-on-missing
fallback (QUuid(e.attribute("uuid", QUuid::createUuid().toString())))
for projects saved before this change.
- PasteDiagramCommand::redo() calls newUuid() on every pasted
conductor (content.conductors(), all three categories), mirroring
the existing per-element newUuid() call right above it -- otherwise
copy-paste would duplicate a conductor's uuid.
Backward compatibility: Conductor::valideXml() doesn't require the
"uuid" attribute, so old files parse unchanged. Verified by opening a
genuinely pre-uuid project (examples/industrial.qet, 150 folios, 671
conductors, legacy integer terminal1/terminal2 references with no
uuid attribute at all) -- loads and renders correctly, gets uuids
assigned on load, and those uuids are stable across a second
load/save cycle (byte-identical uuid values). Verified paste
separately: copying a selection with conductors and pasting produces
distinct new uuids for every pasted conductor, none colliding with
the originals or each other.
clazy is a compiler plugin which allows clang to understand Qt
semantics. You get more than 50 Qt related compiler warnings, ranging
from unneeded memory allocations to misusage of API, including fix-its
for automatic refactoring.
https://invent.kde.org/sdk/clazy
Add a combo box in the tool bar of diagram editor
to quickly change the size of the graphics handler item.
The sarto commit :D
NOTE
only available for diagram editor, element editor will
come later.
ispyisail