Addresses scorpio810's review of PR #890 (bugtracker #734):
- The four cas "3"/"4" bridge-skip guards now compare qRound()ed
coordinates, matching how the bridge coordinate itself is computed --
an exact != would miss a pair already grid-equal after rounding but
off by a sub-pixel remainder, and still route a degenerate bridge for
it. Verified no behavior change on the shipped corpus: per-file
self-retrace counts are identical before/after (every coordinate
there already lands exactly on-grid).
- Added tests/qttest/tst_conductorselfretrace.cpp, fixture
qet_bug_repro_resaved.qet (the report's own canonical reproduction):
exports it via the built binary's --export-svg and asserts no
conductor path is self-retracing. Confirmed it actually catches the
regression, not just passes vacuously -- reverted conductor.cpp to
master and reran: fails, 1 self-retracing path found.
Not changed in code: the cas "4" descending-branch dead-code note (kept
for symmetry, as already agreed) and the schema_unifilaire_voltaique2.qet
trade-off (flagged for the reviewer's own visual check).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
generateConductorPath()'s cas "3"/"4" branches each insert a two-point
bridge along one axis, at a coordinate on the other axis computed as
the midpoint of depart/arrivee and then snapped to the routing grid by
a loop that walks it strictly downward until it divides evenly.
When depart and arrivee already agree on the axis the bridge would run
along, no bridge is needed at all -- the midpoint starts on the
correct, already-shared value. But the snap can still walk it off that
value, or, when it happens to already sit on the grid, the two bridge
points just duplicate depart and arrivee outright. Either way the
conductor renders with an unnecessary out-and-back excursion or a
small looping detour at a join that needed neither.
Fix: skip the bridge in exactly that degenerate case, per branch, on
the axis that branch actually bridges on. descendant and montant are
not mirror images of each other in which axis each cas guards on --
each site says so.
Verified against the report's own canonical reproduction
(qet_bug_repro_resaved.qet from the linked gist): 1 self-retracing
path -> 0. Full corpus of 24 shipped example projects (stored
segments, as shipped, not regenerated): 74 -> 65 self-retracing
conductor paths, zero regressions -- only two files changed, both
improved.
One disclosed trade-off, found while checking for regressions: in
schema_unifilaire_voltaique2.qet, 8 terminal pairs closer together
than twice the extension length (docked stubs already cross before
any bridge is considered) go from an existing small rectangular-loop
artifact to a straight out-and-back retrace covering the full gap --
same count of defective paths (8 -> 8), a different shape, still no
connectivity change either way. Not chased further; a real fix for
that narrower "crossed stubs" case is a separate piece of work.
The shipped affuteuse_250h.qet's own 12 self-retracing paths (verified
by stripping all 185 stored <segment> elements and forcing full
regeneration) are unchanged by this fix -- they are a structurally
different point-count signature (a 4-point back-and-forth reachable
from cas "1"/"2", not the cas "3"/"4" grid-snap bridge this fixes),
consistent with what the issue thread already flagged as a separate,
undiagnosed mechanism.
Refs #734 (own root-cause comment, 2026-08-13).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
The F2 color editor recolors one conductor, but the next one drawn
falls straight back to defaultConductorProperties -- the choice made
via F2 is lost the moment you place another wire, and lost again on
restart. LastUsedStyle already solves the same problem for shapes
(pen/brush) and free text (font), session-scoped and deliberately not
QSettings-backed; this extends it with a conductor color, following
the identical has/get/set shape.
F2's handler records the color after pushing its undo command.
Conductor's constructor -- the one place a new conductor's properties
are set from defaultConductorProperties -- overrides just the color
field when a session color has been recorded, leaving every other
default (style, thickness, text) alone.
Verified: build clean, ctest 6/6. Could not get a reliable headless
GUI trace of "F2 one wire, draw a new one, see it inherit the color"
-- drag-and-drop element placement under Xvfb was unreliable in this
environment (one attempt did nothing, another drew an unintended long
conductor undo didn't fully clear). The code path is otherwise
identical to the already-shipped shape/text mechanism this mirrors.
Refs #461.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Conductor::paint() drew every junction as a fixed 3.0-unit ellipse,
regardless of how wide the conductor carrying it is. The conductor width is
user-settable from 0.4 to 20.0, so at anything above about 3.0 the dot is
narrower than the line it sits on and disappears entirely -- exactly when a
junction most needs to be legible.
The dot now scales with m_properties.cond_size, floored at the historic 3.0
so nothing changes at or below the default width of 1.0. Only the wide
conductors the report is about are affected.
cond_size is used rather than the pen width because the pen is inflated by 4
while the mouse is over the conductor; the junction should not grow on
hover.
Measured with a temporary trace over examples/741.qet: at the default width
the diameter stays 3.00, and with condsize="5" it becomes 15.00. Visually,
a PNG export of that widened project shows two junctions that were invisible
under the line rendering as clear dots. ctest 4/4, Qt 5.15.18.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Fourth and last instance of the ordering defect, and the inner half of the
one fixed in the previous commit. ProjectDBModel::toXml() builds each
section's role list from m_header_data.value(key).keys(), and m_header_data
is a QHash<int, QHash<int, QVariant>> -- so both levels are randomised per
process. Sorting the sections left the roles inside each section still
arriving shuffled, which showed up as <data> children with the same
section="0" swapping places between two saves.
With this, save idempotence across the shipped examples goes from 6 of 23 to
22 of 24.
The two that remain fail for unrelated reasons, not for ordering:
schema_indus.qet stores no uuid attribute on its elements at all, so
fromXml() invents a fresh one on every load; and affuteuse_250h.qet loses a
title block logo's storage attribute and renames a title block template on
save. Both are separate defects.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
When a placed nomenclature or summary table cannot display every row its
model holds, checkInsufficientRowsCount() informs the user with a modal
message box. It used QMessageBox directly rather than QET::QetMessageBox,
so it ignored the non-interactive mode that main.cpp sets for the
command-line verbs, and every headless verb (--info, --resave, --export-*)
blocked forever on a dialog nobody could answer.
This is the same defect fixed in e3d11a499 for the other modals reachable
from the command line; this call site was missed.
Found with a gdb backtrace on a hung --info: the process was parked in
QDialog::exec() under this function.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01L6MRq2Ach1ogvnGcbuqNLr
An element can declare contact groups and a max_slaves that disagree with
each other, and nothing reconciles them.
The element editor keeps the two in step: max_slaves sizes the contact
group table, one row per slot. Nothing does so on load, so a hand
written or generated file can carry five groups and max_slaves=2. That
loads without complaint, isFull() then caps linking at two, and
ContactGroupSelectionDialog still offers all five groups -- so the user
is shown groups that cannot be linked to, with nothing to explain why.
When groups are declared they are the slots: a slave occupies exactly
one, and the selection dialog offers exactly these. So take the limit
from the group count, which is also the number the user can see.
max_slaves stays as the fallback for the elements that declare no
groups, which today is every element in the standard collection.
No element in the collection declares contact groups, so this changes
nothing for existing projects.
Verified with two purpose-built fixtures, since no real element
exercises either path: a coil declaring five groups with max_slaves=2
now takes the limit from the groups, and a coil with max_slaves and no
groups still takes the fallback path unchanged.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
The earlier commit changed MasterElement::isFull() to compare the
contacts in use against max_slaves. That was wrong, and this restores
the original comparison against the number of linked elements.
max_slaves is a number of slots, not of contacts:
- it sizes the contact group table in the element editor, one row per
slot (ElementPropertiesEditorWidget::populateSlaveGroupsTable)
- a group must match the slave's own contact count before it can be
chosen, so a 4 pole slave needs a group declaring 4 and occupies
that single group (ContactGroupSelectionDialog)
- each slave stores exactly one group index
(Element::setGroupIndexForElement)
So a coil declaring 4 slots accepts 4 slaves, whatever their pole
count. Counting contacts made one 4 pole slave fill a 4 slot coil on
its own and refuse three further links that should have been allowed.
ContactUsage stays, and its per-type tally is still what the General
tab needs: how many contacts an auxiliary block must provide is a
different question from how many slots are occupied, and only the
former wants the pole multiplier. The header now says so.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Second half of #819: where a coil declares what contacts it provides, the
General tab now reports each type as used against declared rather than as
a bare count.
NO : 3/4, NC : 1/2, inverseurs : 0/1, autres : 0/0
MasterElement::contactCapacity() sums contactCount over the element's
SlaveContactGroup list, per type, reusing the same ContactUsage tally the
used count is built on. The mapping from ElementData::SlaveState onto the
tally's own type is factored into one helper so the used count and the
declared capacity cannot classify a contact differently.
Falls back to the plain count from the previous commit when an element
declares no groups, which is every element in the standard collection
today -- nothing in the corpus declares slaveContactGroups, so this
changes no existing display.
A type used beyond what is declared reads as e.g. "1/0". That is
deliberate: it says this contact does not fit the part.
Display only. Whether a declared capacity should also feed
MasterElement::isFull() is the open question in #819 and is not touched
here.
Verified end to end against a purpose-built fixture, since no existing
element exercises this path: a coil declaring two NO groups of two, one
NC group of two and one changeover group of one parses and reports
NO=4 NC=2 SW=1 other=0 total=7, matching the declaration exactly.
tst_contactusage gains a case covering capacity summed across groups
(10 cases, all passing).
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
MasterElement::isFull() decided whether a coil had room left with
connected_elements.size() >= max_slaves
which counts linked *elements*. A slave stands for as many contacts as
its "number" kind information declares, so a 4 pole contact consumed a
single contact from the coil's budget instead of four. 36 elements in
the standard collection declare a number between 2 and 4, so this is
reachable, not theoretical.
Add ContactUsage, a header-only tally holding the two rules that are
easy to get wrong:
- a slave counts once per contact it declares, not once per element
- a changeover is counted once, as sw, and never as one NO plus one
NC. CrossRefItem::NOElements() and NCElements() both return
changeovers, so a count built by adding those two lists together
reports one changeover as two contacts.
The upcoming per-type displays (the used count in the element's General
tab, and the per-type budget on the cross reference) need exactly this
count, so it lives in one place rather than being written out three
times, and isFull() now reads it too.
The header carries no graphics dependency, so the counting rules are
unit tested on their own in tests/qttest/tst_contactusage.cpp,
following the same pattern as diagramsortkeys.h.
Verified: all 9 unit tests pass, and both rules were mutation checked
(counting elements instead of contacts fails 2 tests, counting a
changeover as both NO and NC fails 3). The 23 example projects still
load and export without crash or hang, and qet-lint reports no
regressions against its baseline.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
update instead of the image a placeholder box is drawn and a warning is given during export.
Current dxf version is extremely old and does not support any image embedding. Future possible
update is the introduction of a newer dxf version export option which would allow to embed a link to an external
image file.
Shapes and images can now be resized, rotated, and skewed directly
on the canvas, not just moved. Both share one small transform
struct (rotation, then skew, then scale, anchored on a movable
pivot) and one handle widget, so a corner drag, an edge skew, or
grabbing the rotate handle behaves the same way and runs through
the same matrix math everywhere, instead of every item type
reinventing its own.
Shapes also gained a proper pen tool (bezier paths, corner/smooth/
symmetric nodes), arc support, and mirroring. Images gained
non-destructive cropping and colour-keyed transparency, both
remember their own settings, so reopening the dialog picks up
where you left off instead of starting over.
Properties dialogs for both were extended to match (position,
size, angle, skew), with undo/redo wired through for every handle
drag.
Old XML files can read easily as the transformation is only added
if needed and the old syntax is still used and understood if it is
not needed.
New QLineEdit (m_potential_le) between Type and Nom: an optional,
symbol-author-chosen grouping identifier shared by terminals that
belong to the same physical terminal within a multi-terminal block.
Stored as TerminalData::m_potential (new field, persisted as the
"potential" XML attribute, empty by default).
Used by relatedPotentialTerminal() in terminal.cpp: when
potential_isolating is enabled on a Terminal-type element, terminals
sharing a non-empty, matching potential value now stay electrically
linked to each other instead of every terminal in the block being
isolated from every other one.
Tooltip on the field for explanation
Elements already inherited QetGraphicsItem::isMovable()/setMovable() --
the same mechanism images and drawn shapes use for their "lock position"
checkbox -- but nothing exposed it in the element properties panel, and
Element::toXml()/fromXml() never persisted it.
- ElementPropertiesWidget::generalWidget(): add a "Verrouiller la
position" checkbox mirroring ShapeGraphicsItemPropertiesWidget's
m_lock_pos_cb, toggling the element's inherited setMovable().
- Element::toXml()/fromXml(): persist is_movable, same attribute name
and default-true behavior as DiagramImageItem/QetShapeItem.
Verified via headless --resave round-trip: is_movable="0" survives
load -> save unchanged, existing elements without the attribute default
to movable.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HdWpDp3TrPKbHnv7YUcNJj
QString::toDouble() reports a successful conversion for "nan"/"inf"/
"-inf" -- confirmed directly -- so the existing conv_ok checks in
Element::valideXml() and Terminal::valideXml() never caught a
non-finite x/y. A NaN-positioned element reaching the scene can hang
QGraphicsScene::addItem() forever: an existing conductor's itemChange()
runs a collision test (calculateTextItemPosition() ->
QGraphicsItem::collidesWithPath()) whose underlying QPathClipper spins
without terminating when fed a NaN-valued QPainterPath, since NaN
breaks the ordering comparisons the clipping algorithm's termination
depends on (#781). Short of that, a non-finite value that doesn't
happen to trigger a collision test simply gets written straight back
out on save with nothing to stop it (#782).
Element::valideXml() and Terminal::valideXml() now also check
qIsFinite() on the parsed x/y, rejecting the whole item the same way a
missing attribute already does. DynamicElementTextItem::fromXml() has
no such reject-the-item gate (void return, no caller check), so its x/y
are clamped to 0 instead -- the same fallback the attribute lookup
already uses when x/y is missing entirely.
Verified against both original findings' exact repro steps:
- #781: Habitat-Unifilaire.qet with x="nan" on one element -- hung
(SIGTERM'd by a 25s timeout) on an unfixed build, resaves cleanly
(exit 0) on this one.
- #782: grafcet.qet with y="nan" on a dynamic_elmt_text -- the value
passed straight through to the resaved file on an unfixed build;
clamped to 0 on this one. The specific field is now stable (y="0" on
two consecutive resaves) where it read "nan" both times before.
(grafcet.qet has an unrelated, already-known, unmerged fix
(PR #779) for element/terminal-order non-determinism, so a whole-file
diff across resaves still differs for reasons unconnected to this
change -- checked the specific once-NaN field in isolation instead.)
- Also checked -inf on affuteuse_250h.qet: same rejection, same result.
Full qet-dbcheck.py sweep of the unmutated example corpus (23
projects), 0 regressions.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Saving an unmodified project produced a different byte stream on
every run: QGraphicsScene::items() returns items in stacking order,
and ties between same-Z items follow the scene's internal index --
not any content-derived order -- so it isn't reproducible across
process runs. The legacy terminal-id table inherits the same
instability, since ids are assigned sequentially in element order.
Sort list_elements and list_conductors into a deterministic order
before serializing, using a key built from data that's actually
stable across loads (position), not Element::uuid()/Conductor::uuid():
for an item with no persisted uuid attribute, fromXml() invents a
fresh random one on every load, so sorting by uuid would still be
non-deterministic across process runs for any legacy file -- which
this corpus has plenty of.
Also fixes a second, related source of byte-level non-determinism
found while verifying the above: Conductor::toXml() unconditionally
wrote m_uuid back out, including the synthetic value fromXml() just
invented for a conductor with no uuid attribute in the file. Every
conductor in every example project checked has no persisted uuid at
all, so this alone meant no project with conductors could ever
resave identically, regardless of ordering. Conductor gets a
m_persist_uuid flag, false only when the uuid it's holding was
synthesized rather than loaded, so toXml() stops writing a value
that was never meant to be permanent.
Deliberately NOT applying the same uuid-persistence fix to Element:
element uuids are cross-referenced by other elements' <links_uuids>
blocks for master/slave/report linking (element.cpp, tmp_uuids_link,
matched by elmt->uuid() == stored uuid on load). Making an element's
own uuid non-persistent would silently break that match for any
linked element without one already -- a real regression, not a
theoretical one. Left as a smaller, separate residual: 1-6 elements
per project across the corpus (a few tenths of a percent) still get
a fresh uuid on each load, same class of bug, needs the link-aware
version of this fix instead of this one.
Verified against 8 example projects (the ones with conductors, plus
the two zero-conductor control cases from FINDINGS.md F002), 5
resaves each in isolated HOME/XDG environments:
- Element and conductor ORDER: 0 churning sections across the whole
corpus (previously the majority of diagrams in industrial.qet,
m_000.qet and tremie_vibrante.qet churned on every run).
- Conductor uuid VALUES: 0 churn (previously every conductor in
every project, since none have a persisted uuid).
- 6 of 8 projects are now byte-for-byte identical (md5) across all 5
runs. The remaining 2 (industrial.qet, m_000.qet) differ only in
the handful of element uuids covered by the known Element residual
above -- confirmed by checking those uuids specifically, not
inferred.
- Element/conductor counts before and after resave match exactly on
every project (no data loss from the sort).
Fixes#754.
The conductor table keyed on Terminal::uuid(), which comes from the catalog
.elmt definition and is empty for every element authored before that field
existed. A conductor was dropped unless *both* its terminals had one, so the
tables this slice adds were empty on almost every project in existence:
examples corpus conductor rows in the database
industrial.qet 0 of 671
affuteuse_250h.qet 0 of 263
tremie_vibrante.qet 0 of 77
741.qet 0 of 67
Across the 23 example projects, 16 of the 20 that contain conductors have
zero terminal uuids -- 2366 of 3002 conductors -- and overall coverage is
7.3%. Meanwhile --export-cables, already on master, lists all 671 conductors
of industrial.qet from the document. A feature that only works on newly
authored elements is not one users can rely on.
Terminal::stableUuid() returns the terminal's own uuid when it has one and
otherwise derives one from its local position and orientation inside its
element. That is not an invented scheme: it is what the project format
already does. TerminalData::fromXml() says so where it parses the field --
"if the attribute not exists, means, the element is created with an older
version of qet. So use the legacy approach to identify terminals" -- and the
legacy approach is the terminal's position. m_pos is read from the definition
and is not touched by moving the element on a folio, so the identity survives
loads, saves and folio moves. Derived values are UUID v5 in a fixed namespace,
so they are reproducible without being stored, and cannot collide with the v4
uuids the element editor generates.
Every project in the corpus now has exactly as many conductor rows as the
document has conductors -- 20 of 20 measured, 0 mismatches. (schema_indus.qet
is excluded: it blocks on a modal dialog at zero CPU under any CLI flag, the
pre-existing hang PR #661 addresses.)
Two things this deliberately does not key on:
- The terminal name. It is not stable: QET rewrites a terminal named "_" as
unnamed, which would have silently changed the identity of 1421 of
industrial.qet's 1790 terminals on their first resave. Measured across the
corpus, dropping it costs nothing -- geometry alone yields exactly the same
three collisions -- and it means renaming a terminal no longer changes what
it is.
- Uniqueness in the face of a definition that declares two terminals at the
same point and orientation. Three cases exist in the whole corpus. They
merge to a single terminal row, which is harmless: two terminals identical
in position and orientation are indistinguishable in every observable
respect, and every conductor on either still resolves to the right element
and terminal name. Both affected projects (industrial, perceuse) return
their full conductor count.
The only conductor still skipped is one whose terminal has no parent element,
which has no identity to key on at all.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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>
Follow-up to #740, which fixed the slave-side "(n-Xn)" cross-reference
label. The master-side item - the small table/cross drawn next to a
report or master element, listing where each of its slaves is used -
was still missing from DXF export. Measured against examples/
industrial.qet with the PDF export as an oracle (renders the whole
scene, so it shows what should be there):
before after PDF
slave xrefs "(n-Xn)" 41 41 41 (already fixed, #740)
folio/position strings 358 403 403
DXF now matches the PDF exactly.
## Why this needed a different approach than #740
The slave label is a plain QGraphicsTextItem - one string, trivial to
walk and re-emit as a single DXF TEXT entity, which is what #740 did.
The master-side item (CrossRefItem) is not: it paints itself with
~600 lines of hand-written QPainter calls across three modes
(drawAsCross/drawAsContacts/drawAsPlcTable), including a header
table, contact symbols, and rules. Hand-porting that logic to emit
DXF primitives directly would mean maintaining two divergent
implementations of the same drawing that have to be kept in sync by
hand forever.
## Approach: a QPaintEngine that intercepts CrossRefItem's own paint()
DxfPaintEngine/DxfPaintDevice (sources/dxfpaintdevice.{h,cpp}) is a
QPaintEngine/QPaintDevice pair - the same mechanism QPrinter and
QSvgGenerator use to redirect QPainter output elsewhere. Constructing
a QPainter on a DxfPaintDevice and calling item->paint() on it produces
DXF entities instead of pixels, using the exact same drawing code that
already renders correctly on screen. CrossRefItem::paint() is
unmodified.
Scope is deliberately narrow - only the QPainter calls CrossRefItem's
paint() is observed to make: drawLines -> LINE, drawRects/drawPath's
fill case -> outline-only LWPOLYLINE (no HATCH support in v1 - DXF's
fill primitive is a separate, more involved entity type; documented as
a known limitation rather than attempted here), drawEllipse -> CIRCLE
or a flattened polygon for rotated ellipses, drawPath's arc case (from
drawArc/drawPie) -> chord-flattened LINE segments, drawPolygon ->
LWPOLYLINE, drawTextItem -> TEXT. drawPixmap is intentionally
unimplemented (qWarning + skip) since CrossRefItem never calls it -
this is not a general-purpose DXF paint engine, and isn't meant to be
in this PR.
CrossRefItem::paint() is protected, per the normal QGraphicsItem
contract - added a small paintForExport() wrapper rather than making
paint() itself public, or reaching around access control.
## Explicitly out of scope
QetShapeItem::toDXF() and QetGraphicsTableItem::toDXF() (both already
implemented and working) are untouched. Rewriting working exporters
onto this engine to prove an architectural point would be a large,
unrelated diff with no user-visible benefit - if that consolidation is
wanted later, it's a separate proposal once this engine has shipped
and proven out on the one item that currently has no DXF export at
all.
## Testing
Built clean on Qt5/Linux. Verified via the GUI export dialog
(Fichier > Exporter > DXF) against examples/industrial.qet, 50 folios:
export completes without error or crash, all 50 .dxf files are
structurally well-formed (balanced SECTION/ENDSEC, single EOF each),
and grepping the folio-position pattern gives the before/after/PDF
numbers above. Spot-checked several real label strings (e.g. "18-B18",
"20-A2") present as TEXT entity values in the output, not just an
artifact of the count matching.
QVector<int>(Qt::DisplayRole) creates a vector of size 0 (since Qt::DisplayRole == 0), not a vector containing DisplayRole. Fixed
to {Qt::DisplayRole}.
The sam applies to QVector<int>(role) which gets changed to {role}.
DynamicElementTextItem's slave cross-reference sub-item
(m_slave_Xref_item, the small "_(1-D3)_"-style text next to a slave
element pointing back to its master) hardcoded Qt::black in three
places: on creation, on hover-leave, and when restoring color after
text editing. The PARENT text item's color is a real, user-configurable
property (color()/setColor(), persisted in the diagram XML, exposed in
the text editor's color picker) -- but the slave-Xref sub-item never
used it, so a user applying a dark theme/stylesheet had no way to make
this specific text visible even by explicitly setting a text color,
unlike every other text item in the diagram.
Fix: use color() (the parent DynamicElementTextItem's own configured
color, inherited from DiagramTextItem) instead of the Qt::black
constant in all three places. This doesn't change the default
appearance (color() defaults to black, same as before) but makes the
slave-Xref text finally respect whatever color the user sets on the
parent text field, giving dark-theme users the same escape hatch
already available for all other diagram text.
Verified: clean rebuild, only the intended object file recompiled and
linked successfully.
Not verified: a live visual confirmation of the slave-Xref text
picking up a non-default color, since reproducing this requires
constructing a master/slave-linked element pair with composite text
containing %{label} in an actual multi-folio project, which was out of
scope for the time available. Confidence rests on this being a direct,
mechanical substitution of an existing, already-used accessor
(color()) for a hardcoded constant, applied identically to the exact
three call sites that previously hardcoded Qt::black for this item,
with no other logic changed.
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