bool SES_DrawWire::addNextNetPoint(Schematic& schematic,
const Point& pos) noexcept {
Q_ASSERT(mSubState == SubState_PositioningNetPoint);
// abort if p2 == p0 (no line drawn)
if (pos == mFixedStartAnchor->getPosition()) {
abortPositioning(true);
return false;
} else {
bool finishCommand = false;
try {
// create a new undo command group to make all changes atomic
QScopedPointer<UndoCommandGroup> cmdGroup(
new UndoCommandGroup("Add schematic netline"));
// remove p1 if p1 == p0 || p1 == p2
if ((mPositioningNetPoint1->getPosition() ==
mFixedStartAnchor->getPosition()) ||
(mPositioningNetPoint1->getPosition() ==
mPositioningNetPoint2->getPosition())) {
QScopedPointer<CmdSchematicNetSegmentRemoveElements> cmdRemove(
new CmdSchematicNetSegmentRemoveElements(
mPositioningNetPoint1->getNetSegment()));
cmdRemove->removeNetPoint(*mPositioningNetPoint1);
cmdRemove->removeNetLine(*mPositioningNetLine1);
cmdRemove->removeNetLine(*mPositioningNetLine2);
QScopedPointer<CmdSchematicNetSegmentAddElements> cmdAdd(
new CmdSchematicNetSegmentAddElements(
mPositioningNetPoint1->getNetSegment()));
mPositioningNetLine2 =
cmdAdd->addNetLine(*mFixedStartAnchor, *mPositioningNetPoint2);
mUndoStack.appendToCmdGroup(cmdAdd.take());
mUndoStack.appendToCmdGroup(cmdRemove.take());
}
// find anchor under cursor
SI_NetLineAnchor* otherAnchor = nullptr;
SI_NetSegment* otherNetSegment = nullptr;
QString otherForcedNetName;
if (SI_NetPoint* netpoint =
findNetPoint(schematic, pos, mPositioningNetPoint2)) {
otherAnchor = netpoint;
otherNetSegment = &netpoint->getNetSegment();
} else if (SI_SymbolPin* pin = findSymbolPin(schematic, pos)) {
otherAnchor = pin;
otherNetSegment = pin->getNetSegmentOfLines();
// connect pin if needed
if (!otherNetSegment) {
Q_ASSERT(pin->getComponentSignalInstance());
mUndoStack.appendToCmdGroup(new CmdCompSigInstSetNetSignal(
*pin->getComponentSignalInstance(),
&mPositioningNetPoint2->getNetSignalOfNetSegment()));
otherForcedNetName =
pin->getComponentSignalInstance()->getForcedNetSignalName();
}
} else if (SI_NetLine* netline =
findNetLine(schematic, pos, mPositioningNetLine2)) {
// split netline
otherNetSegment = &netline->getNetSegment();
QScopedPointer<CmdSchematicNetSegmentAddElements> cmdAdd(
new CmdSchematicNetSegmentAddElements(*otherNetSegment));
otherAnchor = cmdAdd->addNetPoint(pos);
cmdAdd->addNetLine(*otherAnchor, netline->getStartPoint());
cmdAdd->addNetLine(*otherAnchor, netline->getEndPoint());
mUndoStack.appendToCmdGroup(cmdAdd.take()); // can throw
QScopedPointer<CmdSchematicNetSegmentRemoveElements> cmdRemove(
new CmdSchematicNetSegmentRemoveElements(*otherNetSegment));
cmdRemove->removeNetLine(*netline);
mUndoStack.appendToCmdGroup(cmdRemove.take()); // can throw
}
// if anchor found under the cursor, replace "mPositioningNetPoint2" with
// it
if (otherAnchor) {
if ((!otherNetSegment) ||
(otherNetSegment == &mPositioningNetPoint2->getNetSegment())) {
QScopedPointer<CmdSchematicNetSegmentAddElements> cmdAdd(
new CmdSchematicNetSegmentAddElements(
mPositioningNetPoint2->getNetSegment()));
cmdAdd->addNetLine(*otherAnchor,
mPositioningNetLine2->getStartPoint());
mUndoStack.appendToCmdGroup(cmdAdd.take()); // can throw
QScopedPointer<CmdSchematicNetSegmentRemoveElements> cmdRemove(
new CmdSchematicNetSegmentRemoveElements(
mPositioningNetPoint2->getNetSegment()));
cmdRemove->removeNetPoint(*mPositioningNetPoint2);
cmdRemove->removeNetLine(*mPositioningNetLine2);
mUndoStack.appendToCmdGroup(cmdRemove.take()); // can throw
} else {
// change net signal if needed
NetSignal* thisSignal =
&mPositioningNetPoint2->getNetSignalOfNetSegment();
NetSignal* otherSignal = &otherNetSegment->getNetSignal();
if (thisSignal != otherSignal) {
NetSignal* resultingNetSignal = nullptr;
SI_NetSegment* netSegmentToChangeSignal = nullptr;
if (otherNetSegment->getForcedNetNames().count() > 0) {
resultingNetSignal = &otherNetSegment->getNetSignal();
netSegmentToChangeSignal =
&mPositioningNetPoint2->getNetSegment();
} else if (mPositioningNetPoint2->getNetSegment()
.getForcedNetNames()
.count() > 0) {
resultingNetSignal =
&mPositioningNetPoint2->getNetSignalOfNetSegment();
netSegmentToChangeSignal = otherNetSegment;
} else if (otherSignal->hasAutoName() &&
(!thisSignal->hasAutoName())) {
resultingNetSignal =
&mPositioningNetPoint2->getNetSignalOfNetSegment();
netSegmentToChangeSignal = otherNetSegment;
} else {
resultingNetSignal = &otherNetSegment->getNetSignal();
netSegmentToChangeSignal =
&mPositioningNetPoint2->getNetSegment();
}
mUndoStack.appendToCmdGroup(
new CmdChangeNetSignalOfSchematicNetSegment(
*netSegmentToChangeSignal, *resultingNetSignal));
}
// combine both net segments
mUndoStack.appendToCmdGroup(new CmdCombineSchematicNetSegments(
mPositioningNetPoint2->getNetSegment(), *mPositioningNetPoint2,
*otherNetSegment, *otherAnchor));
}
if (!otherForcedNetName.isEmpty()) {
// change net name if connected to a pin with forced net name
try {
CircuitIdentifier name =
CircuitIdentifier(otherForcedNetName); // can throw
NetSignal* signal =
schematic.getProject().getCircuit().getNetSignalByName(*name);
if (signal) {
mUndoStack.appendToCmdGroup(
new CmdChangeNetSignalOfSchematicNetSegment(
mPositioningNetPoint2->getNetSegment(), *signal));
} else {
QScopedPointer<CmdNetSignalEdit> cmd(new CmdNetSignalEdit(
schematic.getProject().getCircuit(),
mPositioningNetPoint2->getNetSignalOfNetSegment()));
cmd->setName(name, false);
mUndoStack.appendToCmdGroup(cmd.take());
}
} catch (const Exception& e) {
QMessageBox::warning(
&mEditor, tr("Invalid net name"),
QString(
tr("Could not apply the forced net name because '%1' is "
"not a valid net name."))
.arg(otherForcedNetName));
}
}
finishCommand = true;
} else {
finishCommand = false;
}
} catch (const UserCanceled& e) {
return false;
} catch (const Exception& e) {
QMessageBox::critical(&mEditor, tr("Error"), e.getMsg());
return false;
}
try {
// finish the current command
mUndoStack.commitCmdGroup();
mSubState = SubState_Idle;
// abort or start a new command
if (finishCommand) {
mUndoStack.beginCmdGroup(QString()); // this is ugly!
abortPositioning(true);
return false;
} else {
return startPositioning(schematic, pos, mPositioningNetPoint2);
}
} catch (const Exception& e) {
QMessageBox::critical(&mEditor, tr("Error"), e.getMsg());
if (mSubState != SubState_Idle) {
abortPositioning(false);
}
return false;
}
}
}
