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EMSUSD-1000 - Implement new Hierarchy Cmd. #3597

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EMSUSD-1000 - Implement new Hierarchy Cmd. #3597

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12 changes: 12 additions & 0 deletions lib/mayaUsd/ufe/ProxyShapeHierarchy.cpp
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Expand Up @@ -251,6 +251,18 @@ ProxyShapeHierarchy::insertChild(const Ufe::SceneItem::Ptr& child, const Ufe::Sc
return insertChildCommand->insertedChild();
}

Ufe::InsertChildCommand::Ptr
ProxyShapeHierarchy::appendChildVerifyRestrictionsCmd(const Ufe::SceneItem::Ptr& child)
{
const auto childCmd = appendChildCmd(child);

if (childCmd && isConnected(downcast(child))) {
throw std::runtime_error("The node you're trying to move has connections.");
}
Comment on lines +259 to +261
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In your Ufe PR it states "Returns a null pointer if the restrictions are not observed." - but here you are throwing. It should be one of the. Either return nullptr here or in Ufe change the doc to state that it will throw runtime_error if the restrictions are not observed.


return childCmd;
}

#ifdef UFE_V3_FEATURES_AVAILABLE
Ufe::SceneItem::Ptr ProxyShapeHierarchy::createGroup(const Ufe::PathComponent& name) const
{
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2 changes: 2 additions & 0 deletions lib/mayaUsd/ufe/ProxyShapeHierarchy.h
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Expand Up @@ -78,6 +78,8 @@ class MAYAUSD_CORE_PUBLIC ProxyShapeHierarchy : public Ufe::Hierarchy
insertChild(const Ufe::SceneItem::Ptr& child, const Ufe::SceneItem::Ptr& pos) override;
Ufe::InsertChildCommand::Ptr
insertChildCmd(const Ufe::SceneItem::Ptr& child, const Ufe::SceneItem::Ptr& pos) override;
Ufe::InsertChildCommand::Ptr
appendChildVerifyRestrictionsCmd(const Ufe::SceneItem::Ptr& child) override;

Ufe::UndoableCommand::Ptr reorderCmd(const Ufe::SceneItemList& orderedList) const override;

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7 changes: 7 additions & 0 deletions lib/mayaUsd/ufe/PulledObjectHierarchy.cpp
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Expand Up @@ -81,6 +81,13 @@ Ufe::InsertChildCommand::Ptr PulledObjectHierarchy::insertChildCmd(
return nullptr;
}

Ufe::InsertChildCommand::Ptr
PulledObjectHierarchy::appendChildVerifyRestrictionsCmd(const Ufe::SceneItem::Ptr& child)
{
TF_CODING_ERROR("Illegal call to unimplemented %s", __func__);
return nullptr;
}

Ufe::SceneItem::Ptr
PulledObjectHierarchy::insertChild(const Ufe::SceneItem::Ptr& child, const Ufe::SceneItem::Ptr& pos)
{
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2 changes: 2 additions & 0 deletions lib/mayaUsd/ufe/PulledObjectHierarchy.h
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Expand Up @@ -74,6 +74,8 @@ class MAYAUSD_CORE_PUBLIC PulledObjectHierarchy : public Ufe::Hierarchy
insertChild(const Ufe::SceneItem::Ptr& child, const Ufe::SceneItem::Ptr& pos) override;
Ufe::InsertChildCommand::Ptr
insertChildCmd(const Ufe::SceneItem::Ptr& child, const Ufe::SceneItem::Ptr& pos) override;
Ufe::InsertChildCommand::Ptr
appendChildVerifyRestrictionsCmd(const Ufe::SceneItem::Ptr& child) override;

Ufe::UndoableCommand::Ptr reorderCmd(const Ufe::SceneItemList& orderedList) const override;

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2 changes: 1 addition & 1 deletion lib/mayaUsd/ufe/UsdAttributes.cpp
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Expand Up @@ -446,7 +446,7 @@ static void removeSrcAttrConnections(PXR_NS::UsdPrim& prim, const PXR_NS::UsdAtt
for (const auto& attribute : prim.GetAttributes()) {
PXR_NS::UsdAttribute dstUsdAttr = attribute.As<PXR_NS::UsdAttribute>();

if (MayaUsd::ufe::isConnected(srcUsdAttr, dstUsdAttr)) {
if (isConnected(srcUsdAttr, dstUsdAttr)) {
UsdShadeConnectableAPI::DisconnectSource(dstUsdAttr, srcUsdAttr);
// Check if we can remove the property.
if (MayaUsd::ufe::canRemoveDstProperty(dstUsdAttr)) {
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5 changes: 3 additions & 2 deletions lib/mayaUsd/ufe/UsdUndoConnectionCommands.cpp
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Expand Up @@ -22,6 +22,7 @@
#include <mayaUsd/ufe/UsdConnections.h>
#include <mayaUsd/ufe/Utils.h>

#include <usdUfe/ufe/Utils.h>
#include <usdUfe/ufe/UsdSceneItem.h>
#include <usdUfe/undo/UsdUndoBlock.h>
#include <usdUfe/utils/usdUtils.h>
Expand Down Expand Up @@ -155,7 +156,7 @@ void UsdUndoCreateConnectionCommand::execute()
return;
}

if (MayaUsd::ufe::isConnected(srcUsdAttr->usdAttribute(), dstUsdAttr->usdAttribute())) {
if (isConnected(srcUsdAttr->usdAttribute(), dstUsdAttr->usdAttribute())) {
return;
}

Expand Down Expand Up @@ -287,7 +288,7 @@ void UsdUndoDeleteConnectionCommand::execute()
UsdAttribute* dstUsdAttr = usdAttrFromUfeAttr(dstAttr);

if (!srcUsdAttr || !dstUsdAttr
|| !MayaUsd::ufe::isConnected(srcUsdAttr->usdAttribute(), dstUsdAttr->usdAttribute())) {
|| !isConnected(srcUsdAttr->usdAttribute(), dstUsdAttr->usdAttribute())) {
return;
}
#if PXR_VERSION < 2302
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14 changes: 0 additions & 14 deletions lib/mayaUsd/ufe/Utils.cpp
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Expand Up @@ -347,20 +347,6 @@ TfTokenVector getProxyShapePurposes(const Ufe::Path& path)
return purposes;
}

bool isConnected(const PXR_NS::UsdAttribute& srcUsdAttr, const PXR_NS::UsdAttribute& dstUsdAttr)
{
PXR_NS::SdfPathVector connectedAttrs;
dstUsdAttr.GetConnections(&connectedAttrs);

for (PXR_NS::SdfPath path : connectedAttrs) {
if (path == srcUsdAttr.GetPath()) {
return true;
}
}

return false;
}

bool canRemoveSrcProperty(const PXR_NS::UsdAttribute& srcAttr)
{

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5 changes: 0 additions & 5 deletions lib/mayaUsd/ufe/Utils.h
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Expand Up @@ -116,11 +116,6 @@ PXR_NS::UsdTimeCode getTime(const Ufe::Path& path);
MAYAUSD_CORE_PUBLIC
PXR_NS::TfTokenVector getProxyShapePurposes(const Ufe::Path& path);

//! Check if the src and dst attributes are connected.
//! \return True, if they are connected.
MAYAUSD_CORE_PUBLIC
bool isConnected(const PXR_NS::UsdAttribute& srcUsdAttr, const PXR_NS::UsdAttribute& dstUsdAttr);
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Moving it to usdUfe/ufe as I see this function doesn't need the maya and mayaUsd .h included in lib/mayaUsd/ufe/Utils.h


//! Check if a source connection property is allowed to be removed.
//! \return True, if the property can be removed.
MAYAUSD_CORE_PUBLIC
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13 changes: 13 additions & 0 deletions lib/usdUfe/ufe/UsdHierarchy.cpp
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Expand Up @@ -257,6 +257,19 @@ UsdHierarchy::insertChildCmd(const Ufe::SceneItem::Ptr& child, const Ufe::SceneI
return UsdUndoInsertChildCommand::create(fItem, downcast(child), downcast(pos));
}

Ufe::InsertChildCommand::Ptr
UsdHierarchy::appendChildVerifyRestrictionsCmd(const Ufe::SceneItem::Ptr& child)
{
const auto childCmd = appendChildCmd(child);
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A better and cleaner solution would be to create a new cmd that inherits from UsdUndoInsertChildCommand and in the new constructor check the restrictions and throw the exception.


if (childCmd && isConnected(downcast(child))) {
throw std::runtime_error("The node you're trying to move has connections.");
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We should update this message according to the updated and approved UI linked in the related story

}

return childCmd;
}


Ufe::SceneItem::Ptr
UsdHierarchy::insertChild(const Ufe::SceneItem::Ptr& child, const Ufe::SceneItem::Ptr& pos)
{
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2 changes: 2 additions & 0 deletions lib/usdUfe/ufe/UsdHierarchy.h
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Expand Up @@ -84,6 +84,8 @@ class USDUFE_PUBLIC UsdHierarchy : public Ufe::Hierarchy
insertChild(const Ufe::SceneItem::Ptr& child, const Ufe::SceneItem::Ptr& pos) override;
Ufe::InsertChildCommand::Ptr
insertChildCmd(const Ufe::SceneItem::Ptr& child, const Ufe::SceneItem::Ptr& pos) override;
Ufe::InsertChildCommand::Ptr
appendChildVerifyRestrictionsCmd(const Ufe::SceneItem::Ptr& child) override;

Ufe::UndoableCommand::Ptr reorderCmd(const Ufe::SceneItemList& orderedList) const override;

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89 changes: 89 additions & 0 deletions lib/usdUfe/ufe/Utils.cpp
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Expand Up @@ -428,6 +428,95 @@ Ufe::BBox3d combineUfeBBox(const Ufe::BBox3d& ufeBBox1, const Ufe::BBox3d& ufeBB
return combinedBBox;
}

bool isConnected(const PXR_NS::UsdAttribute& srcUsdAttr, const PXR_NS::UsdAttribute& dstUsdAttr)
{
PXR_NS::SdfPathVector connectedAttrs;
dstUsdAttr.GetConnections(&connectedAttrs);

for (PXR_NS::SdfPath path : connectedAttrs) {
if (path == srcUsdAttr.GetPath()) {
return true;
}
}

return false;
}

bool isConnected(const UsdSceneItem::Ptr& usdItem)
{

if (!usdItem) {
return false;
}

const auto prim = usdItem->prim();

if (!prim) {
return false;
}

const auto primAttrs = prim.GetAuthoredAttributes();

for (const auto& attr : primAttrs) {
const auto kBaseNameAndType
= PXR_NS::UsdShadeUtils::GetBaseNameAndType(PXR_NS::TfToken(attr.GetName()));

if (kBaseNameAndType.second != PXR_NS::UsdShadeAttributeType::Output
&& kBaseNameAndType.second != PXR_NS::UsdShadeAttributeType::Input) {
continue;
}

if (kBaseNameAndType.second == PXR_NS::UsdShadeAttributeType::Input) {
// The attribute could be a destination for connected sources, so check for its
// connections.
PXR_NS::UsdShadeSourceInfoVector sourcesInfo
= pxr::UsdShadeConnectableAPI::GetConnectedSources(attr);

if (!sourcesInfo.empty()) {
return true;
}
}

if (kBaseNameAndType.second == PXR_NS::UsdShadeAttributeType::Output) {
const auto primParent = prim.GetParent();

if (!primParent) {
continue;
}

// The attribute could be a source connection, we have to explore the siblings.
for (auto&& child : primParent.GetChildren()) {
if (child == prim) {
continue;
}

for (const auto& otherAttr : child.GetAttributes()) {
const auto childAttrBaseNameAndType = PXR_NS::UsdShadeUtils::GetBaseNameAndType(
PXR_NS::TfToken(otherAttr.GetName()));

if (childAttrBaseNameAndType.second == PXR_NS::UsdShadeAttributeType::Input
&& isConnected(attr, otherAttr)) {
return true;
}
}
}

// Check also if there are connections to the parent.
for (const auto& otherAttr : primParent.GetAttributes()) {
const auto parentAttrBaseNameAndType = PXR_NS::UsdShadeUtils::GetBaseNameAndType(
PXR_NS::TfToken(otherAttr.GetName()));

if (parentAttrBaseNameAndType.second == PXR_NS::UsdShadeAttributeType::Output
&& isConnected(attr, otherAttr)) {
return true;
}
}
}
}

return false;
}

void applyRootLayerMetadataRestriction(const UsdPrim& prim, const std::string& commandName)
{
// return early if prim is the pseudo-root.
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10 changes: 10 additions & 0 deletions lib/usdUfe/ufe/Utils.h
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Expand Up @@ -304,6 +304,16 @@ bool isEditTargetLayerModifiable(
USDUFE_PUBLIC
Ufe::BBox3d combineUfeBBox(const Ufe::BBox3d& ufeBBox1, const Ufe::BBox3d& ufeBBox2);

//! Check if the src and dst attributes are connected.
//! \return True, if they are connected.
USDUFE_PUBLIC
bool isConnected(const PXR_NS::UsdAttribute& srcUsdAttr, const PXR_NS::UsdAttribute& dstUsdAttr);

//! Check if the usdItem is connected (i.e. if there are in or out connections).
//! \return True, if it is connected.
USDUFE_PUBLIC
bool isConnected(const UsdSceneItem::Ptr& usdItem);
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Moving out this function from LookdevXUsd


//! Set both the start and stop wait cursor functions.
USDUFE_PUBLIC
void setWaitCursorFns(WaitCursorFn startFn, WaitCursorFn stopFn);
Expand Down
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