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o3de/Gems/GraphCanvas/Code/Source/Components/SceneComponent.cpp

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/*
* Copyright (c) Contributors to the Open 3D Engine Project.
* For complete copyright and license terms please see the LICENSE at the root of this distribution.
*
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
*/
#include <functional>
#include <QAction>
#include <QApplication>
#include <QClipboard>
#include <QKeyEvent>
#include <QGraphicsItem>
#include <QGraphicsSceneEvent>
#include <QGraphicsView>
#include <QScreen>
#include <QMimeData>
#include <AzCore/Casting/numeric_cast.h>
#include <AzCore/Component/ComponentApplicationBus.h>
#include <AzCore/Component/EntityUtils.h>
#include <AzCore/Serialization/Utils.h>
#include <AzCore/std/sort.h>
#include <AzToolsFramework/API/ToolsApplicationAPI.h>
#include <AzToolsFramework/Entity/EditorEntityHelpers.h>
#include <Components/SceneComponent.h>
#include <Components/BookmarkManagerComponent.h>
#include <Components/BookmarkAnchor/BookmarkAnchorComponent.h>
#include <Components/Connections/ConnectionComponent.h>
#include <Components/GridComponent.h>
#include <Components/Nodes/NodeComponent.h>
#include <Components/SceneMemberComponent.h>
#include <GraphCanvas/GraphCanvasBus.h>
#include <GraphCanvas/Components/LayerBus.h>
#include <GraphCanvas/Components/Nodes/Comment/CommentBus.h>
#include <GraphCanvas/Components/Nodes/NodeTitleBus.h>
#include <GraphCanvas/Components/Nodes/NodeUIBus.h>
#include <GraphCanvas/Components/Nodes/Wrapper/WrapperNodeBus.h>
#include <GraphCanvas/Components/PersistentIdBus.h>
#include <GraphCanvas/Components/Slots/SlotBus.h>
#include <GraphCanvas/Components/VisualBus.h>
#include <GraphCanvas/Editor/GraphCanvasProfiler.h>
#include <GraphCanvas/Editor/GraphModelBus.h>
#include <GraphCanvas/Styling/Parser.h>
#include <GraphCanvas/tools.h>
#include <GraphCanvas/Types/GraphCanvasGraphSerialization.h>
#include <GraphCanvas/Widgets/EditorContextMenu/ContextMenuActions/ContextMenuAction.h>
#include <GraphCanvas/Widgets/GraphCanvasGraphicsView/GraphCanvasGraphicsView.h>
#include <GraphCanvas/Widgets/GraphCanvasMimeContainer.h>
#include <GraphCanvas/Widgets/MimeEvents/CreateSplicingNodeMimeEvent.h>
#include <GraphCanvas/Utils/ConversionUtils.h>
#include <GraphCanvas/Utils/QtVectorMath.h>
namespace GraphCanvas
{
////////////////
// SceneHelper
////////////////
void SceneHelper::SetSceneId(const AZ::EntityId& sceneId)
{
m_sceneId = sceneId;
}
const AZ::EntityId& SceneHelper::GetSceneId() const
{
return m_sceneId;
}
void SceneHelper::SetEditorId(const EditorId& editorId)
{
m_editorId = editorId;
OnEditorIdSet();
}
const EditorId& SceneHelper::GetEditorId() const
{
return m_editorId;
}
void SceneHelper::OnEditorIdSet()
{
}
////////////////////////////
// MimeDelegateSceneHelper
////////////////////////////
void MimeDelegateSceneHelper::Activate()
{
m_pushedUndoBlock = false;
m_enableConnectionSplicing = false;
m_spliceTimer.setInterval(500);
m_spliceTimer.setSingleShot(true);
QObject::connect(&m_spliceTimer, &QTimer::timeout, [this]() { OnTrySplice(); });
SceneMimeDelegateHandlerRequestBus::Handler::BusConnect(GetSceneId());
SceneMimeDelegateRequestBus::Event(GetSceneId(), &SceneMimeDelegateRequests::AddDelegate, GetSceneId());
m_nudgingController.SetGraphId(GetSceneId());
}
void MimeDelegateSceneHelper::Deactivate()
{
SceneMimeDelegateRequestBus::Event(GetSceneId(), &SceneMimeDelegateRequests::RemoveDelegate, GetSceneId());
SceneMimeDelegateHandlerRequestBus::Handler::BusDisconnect();
}
void MimeDelegateSceneHelper::SetMimeType(const char* mimeType)
{
m_mimeType = mimeType;
}
const QString& MimeDelegateSceneHelper::GetMimeType() const
{
return m_mimeType;
}
bool MimeDelegateSceneHelper::HasMimeType() const
{
return !m_mimeType.isEmpty();
}
bool MimeDelegateSceneHelper::IsInterestedInMimeData(const AZ::EntityId& graphId, const QMimeData* mimeData)
{
bool isInterested = HasMimeType() && mimeData->hasFormat(GetMimeType());
m_enableConnectionSplicing = false;
if (isInterested)
{
// Need a copy since we are going to try to use
// this event not in response to a movement, but in response to a timeout.
m_splicingData = mimeData->data(GetMimeType());
GraphCanvasMimeContainer mimeContainer;
if (mimeContainer.FromBuffer(m_splicingData.constData(), m_splicingData.size()))
{
isInterested = !mimeContainer.m_mimeEvents.empty();
for (GraphCanvas::GraphCanvasMimeEvent* mimeEvent : mimeContainer.m_mimeEvents)
{
if (!mimeEvent->CanGraphHandleEvent(graphId))
{
isInterested = false;
break;
}
}
// Splicing only makes sense when we have a single node.
if (isInterested
&& mimeContainer.m_mimeEvents.size() == 1
&& azrtti_istypeof<CreateSplicingNodeMimeEvent>(mimeContainer.m_mimeEvents.front()))
{
m_enableConnectionSplicing = true;
AZ_Error("GraphCanvas", !m_splicingNode.IsValid(), "Splicing node not properly invalidated in between interest calls.");
m_splicingNode.SetInvalid();
m_splicingPath = QPainterPath();
}
else
{
m_splicingData.clear();
}
}
else
{
isInterested = false;
}
if (!isInterested)
{
m_splicingData.clear();
}
}
return isInterested;
}
void MimeDelegateSceneHelper::HandleMove(const AZ::EntityId& /*sceneId*/, const QPointF& dragPoint, const QMimeData* /*mimeData*/)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
bool enableSplicing = false;
AssetEditorSettingsRequestBus::EventResult(enableSplicing, GetEditorId(), &AssetEditorSettingsRequests::IsDropConnectionSpliceEnabled);
if (m_splicingNode.IsValid() || !m_splicingPath.isEmpty())
{
if (!m_splicingPath.contains(dragPoint))
{
CancelSplice();
}
else if (m_splicingNode.IsValid())
{
PushUndoBlock();
GeometryRequestBus::Event(m_splicingNode, &GeometryRequests::SetPosition, ConversionUtils::QPointToVector(dragPoint) + m_positionOffset);
PopUndoBlock();
}
}
AZ::EntityId targetId;
AZ::Vector2 targetVector(aznumeric_cast<float>(dragPoint.x()), aznumeric_cast<float>(dragPoint.y()));
AZStd::vector< AZ::EntityId > entitiesAtCursor;
SceneRequestBus::EventResult(entitiesAtCursor, GetSceneId(), &SceneRequests::GetEntitiesAt, targetVector);
AZ::EntityId groupTarget;
AZStd::unordered_set< AZ::EntityId > parentGroups;
int groupHitCounter = 0;
int connectionHitCounter = 0;
for (const auto& entityId : entitiesAtCursor)
{
// Handle targeting for connections
if (GraphUtils::IsConnection(entityId))
{
++connectionHitCounter;
QGraphicsItem* connectionObject = nullptr;
VisualRequestBus::EventResult(connectionObject, entityId, &VisualRequests::AsGraphicsItem);
m_splicingPath = connectionObject->shape();
targetId = entityId;
}
// Handle Targeting for Groups
else if (GraphUtils::IsNodeGroup(entityId))
{
// If our this element is already in the list of parent nodes it's fine, we have a more specific group to drop to.
if (parentGroups.find(entityId) != parentGroups.end())
{
continue;
}
// Otherwise, we want to walk up out group parent, and if we find out
AZ::EntityId groupId = entityId;
parentGroups.clear();
bool isMoreSpecificGroupTarget = false;
while (groupId.IsValid())
{
parentGroups.insert(groupId);
GroupableSceneMemberRequestBus::EventResult(groupId, groupId, &GroupableSceneMemberRequests::GetGroupId);
if (groupId == groupTarget && groupTarget.IsValid())
{
isMoreSpecificGroupTarget = true;
}
}
if (isMoreSpecificGroupTarget)
{
groupTarget = entityId;
continue;
}
// Set our group target, and update the number of unique group chains we've seen.
// If we see more then one, we don't want to do anything with this.
groupTarget = entityId;
++groupHitCounter;
}
}
// Only want to do the splicing if it's unambiguous which thing they are over.
if ((enableSplicing || m_enableConnectionSplicing) && !m_splicingNode.IsValid())
{
if (connectionHitCounter == 1)
{
if (m_targetConnection != targetId)
{
m_targetConnection = targetId;
m_targetPosition = dragPoint;
StateController<RootGraphicsItemDisplayState>* stateController = nullptr;
RootGraphicsItemRequestBus::EventResult(stateController, m_targetConnection, &RootGraphicsItemRequests::GetDisplayStateStateController);
if (stateController)
{
m_displayStateStateSetter.AddStateController(stateController);
m_displayStateStateSetter.SetState(RootGraphicsItemDisplayState::Preview);
}
AZStd::chrono::milliseconds spliceDuration(500);
AssetEditorSettingsRequestBus::EventResult(spliceDuration, GetEditorId(), &AssetEditorSettingsRequests::GetDropConnectionSpliceTime);
m_spliceTimer.stop();
m_spliceTimer.setInterval(aznumeric_cast<int>(spliceDuration.count()));
m_spliceTimer.start();
}
}
else
{
if (m_targetConnection.IsValid())
{
m_displayStateStateSetter.ResetStateSetter();
m_targetConnection.SetInvalid();
m_spliceTimer.stop();
}
if (connectionHitCounter > 0)
{
m_splicingPath = QPainterPath();
}
}
}
if (groupTarget.IsValid() && groupHitCounter == 1)
{
if (groupTarget != m_groupTarget)
{
m_groupTargetStateSetter.ResetStateSetter();
m_groupTarget = groupTarget;
StateController<RootGraphicsItemDisplayState>* stateController = nullptr;
RootGraphicsItemRequestBus::EventResult(stateController, m_groupTarget, &RootGraphicsItemRequests::GetDisplayStateStateController);
m_groupTargetStateSetter.AddStateController(stateController);
m_groupTargetStateSetter.SetState(RootGraphicsItemDisplayState::GroupHighlight);
}
}
else
{
m_groupTarget.SetInvalid();
m_groupTargetStateSetter.ResetStateSetter();
}
}
void MimeDelegateSceneHelper::HandleDrop(const AZ::EntityId& /*sceneId*/, const QPointF& dropPoint, const QMimeData* mimeData)
{
GRAPH_CANVAS_PROFILE_FUNCTION();
m_spliceTimer.stop();
m_displayStateStateSetter.ResetStateSetter();
if (m_splicingNode.IsValid())
{
// Once we finalize the node, we want to release the undo state, and push a new undo.
GraphModelRequestBus::Event(GetSceneId(), &GraphModelRequests::RequestUndoPoint);
SceneRequestBus::Event(GetSceneId(), &SceneRequests::ClearSelection);
SceneMemberUIRequestBus::Event(m_splicingNode, &SceneMemberUIRequests::SetSelected, true);
m_nudgingController.FinalizeNudging();
m_lastCreationGroup.clear();
m_lastCreationGroup.insert(m_splicingNode);
m_splicingData.clear();
m_splicingNode.SetInvalid();
m_targetConnection.SetInvalid();
m_splicingPath = QPainterPath();
AssignLastCreationToGroup();
return;
}
if (!mimeData->hasFormat(GetMimeType()))
{
AZ_Error("SceneMimeDelegate", false, "Handling an event that does not meet our Mime requirements");
return;
}
QByteArray arrayData = mimeData->data(GetMimeType());
GraphCanvasMimeContainer mimeContainer;
if (!mimeContainer.FromBuffer(arrayData.constData(), arrayData.size()) || mimeContainer.m_mimeEvents.empty())
{
return;
}
bool success = false;
AZ::Vector2 sceneMousePoint = AZ::Vector2(aznumeric_cast<float>(dropPoint.x()), aznumeric_cast<float>(dropPoint.y()));
AZ::Vector2 sceneDropPoint = sceneMousePoint;
QGraphicsScene* graphicsScene = nullptr;
SceneRequestBus::EventResult(graphicsScene, GetSceneId(), &SceneRequests::AsQGraphicsScene);
if (graphicsScene)
{
graphicsScene->blockSignals(true);
}
SceneRequestBus::Event(GetSceneId(), &SceneRequests::ClearSelection);
m_lastCreationGroup.clear();
for (GraphCanvasMimeEvent* mimeEvent : mimeContainer.m_mimeEvents)
{
if (mimeEvent->ExecuteEvent(sceneMousePoint, sceneDropPoint, GetSceneId()))
{
success = true;
}
}
if (success)
{
SceneNotificationBus::Event(GetSceneId(), &SceneNotifications::PostCreationEvent);
AssignLastCreationToGroup();
}
if (graphicsScene)
{
graphicsScene->blockSignals(false);
emit graphicsScene->selectionChanged();
}
}
void MimeDelegateSceneHelper::HandleLeave(const AZ::EntityId& /*sceneId*/, const QMimeData* /*mimeData*/)
{
CancelSplice();
}
void MimeDelegateSceneHelper::SignalNodeCreated(const NodeId& nodeId)
{
m_lastCreationGroup.insert(nodeId);
}
void MimeDelegateSceneHelper::OnTrySplice()
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
if (m_targetConnection.IsValid())
{
GraphCanvasMimeContainer mimeContainer;
if (mimeContainer.FromBuffer(m_splicingData.constData(), m_splicingData.size()))
{
if (mimeContainer.m_mimeEvents.empty())
{
return;
}
ConnectionRequestBus::EventResult(m_spliceSource, m_targetConnection, &ConnectionRequests::GetSourceEndpoint);
ConnectionRequestBus::EventResult(m_spliceTarget, m_targetConnection, &ConnectionRequests::GetTargetEndpoint);
m_opportunisticSpliceRemovals.clear();
CreateSplicingNodeMimeEvent* mimeEvent = azrtti_cast<CreateSplicingNodeMimeEvent*>(mimeContainer.m_mimeEvents.front());
if (mimeEvent)
{
PushUndoBlock();
m_splicingNode = mimeEvent->CreateSplicingNode(GetSceneId());
if (m_splicingNode.IsValid())
{
SceneRequestBus::Event(GetSceneId(), &SceneRequests::AddNode, m_splicingNode, ConversionUtils::QPointToVector(m_targetPosition), false);
ConnectionSpliceConfig connectionSpliceConfig;
connectionSpliceConfig.m_allowOpportunisticConnections = true;
bool allowNode = GraphUtils::SpliceNodeOntoConnection(m_splicingNode, m_targetConnection, connectionSpliceConfig);
if (!allowNode)
{
AZStd::unordered_set<AZ::EntityId> deleteIds = { m_splicingNode };
SceneRequestBus::Event(GetSceneId(), &SceneRequests::Delete, deleteIds);
m_splicingNode.SetInvalid();
}
else
{
m_displayStateStateSetter.ResetStateSetter();
m_opportunisticSpliceRemovals = connectionSpliceConfig.m_opportunisticSpliceResult.m_removedConnections;
StateController<RootGraphicsItemDisplayState>* stateController = nullptr;
RootGraphicsItemRequestBus::EventResult(stateController, m_splicingNode, &RootGraphicsItemRequests::GetDisplayStateStateController);
m_displayStateStateSetter.AddStateController(stateController);
AZStd::vector< AZ::EntityId > slotIds;
NodeRequestBus::EventResult(slotIds, m_splicingNode, &NodeRequests::GetSlotIds);
AZ::Vector2 centerPoint(0,0);
int totalSamples = 0;
for (const AZ::EntityId& slotId : slotIds)
{
AZStd::vector< AZ::EntityId > connectionIds;
SlotRequestBus::EventResult(connectionIds, slotId, &SlotRequests::GetConnections);
if (!connectionIds.empty())
{
QPointF slotPosition;
SlotUIRequestBus::EventResult(slotPosition, slotId, &SlotUIRequests::GetConnectionPoint);
centerPoint += ConversionUtils::QPointToVector(slotPosition);
++totalSamples;
for (const AZ::EntityId& connectionId : connectionIds)
{
stateController = nullptr;
RootGraphicsItemRequestBus::EventResult(stateController, connectionId, &RootGraphicsItemRequests::GetDisplayStateStateController);
m_displayStateStateSetter.AddStateController(stateController);
}
}
}
if (totalSamples > 0)
{
centerPoint /= aznumeric_cast<float>(totalSamples);
}
m_positionOffset = ConversionUtils::QPointToVector(m_targetPosition) - centerPoint;
GeometryRequestBus::Event(m_splicingNode, &GeometryRequests::SetPosition, m_positionOffset + ConversionUtils::QPointToVector(m_targetPosition));
m_displayStateStateSetter.SetState(RootGraphicsItemDisplayState::Preview);
AnimatedPulseConfiguration pulseConfiguration;
pulseConfiguration.m_drawColor = QColor(255, 255, 255);
pulseConfiguration.m_durationSec = 0.35f;
pulseConfiguration.m_enableGradient = true;
QGraphicsItem* item = nullptr;
SceneMemberUIRequestBus::EventResult(item, m_splicingNode, &SceneMemberUIRequests::GetRootGraphicsItem);
if (item)
{
pulseConfiguration.m_zValue = item->zValue() - 1;
}
const int k_squaresToPulse = 4;
SceneRequestBus::Event(GetSceneId(), &SceneRequests::CreatePulseAroundSceneMember, m_splicingNode, k_squaresToPulse, pulseConfiguration);
bool enableNudging = false;
AssetEditorSettingsRequestBus::EventResult(enableNudging, GetEditorId(), &AssetEditorSettingsRequests::IsNodeNudgingEnabled);
if (enableNudging)
{
AZStd::unordered_set< NodeId > elementIds = { m_splicingNode };
m_nudgingController.StartNudging(elementIds);
}
}
}
PopUndoBlock();
}
}
}
}
void MimeDelegateSceneHelper::CancelSplice()
{
m_displayStateStateSetter.ResetStateSetter();
m_spliceTimer.stop();
m_splicingPath = QPainterPath();
m_nudgingController.CancelNudging();
if (m_splicingNode.IsValid())
{
PushUndoBlock();
AZStd::unordered_set< AZ::EntityId > deleteIds = { m_splicingNode };
SceneRequestBus::Event(GetSceneId(), &SceneRequests::Delete, deleteIds);
m_splicingNode.SetInvalid();
AZ::EntityId connectionId;
SlotRequestBus::EventResult(connectionId, m_spliceSource.GetSlotId(), &SlotRequests::CreateConnectionWithEndpoint, m_spliceTarget);
AZ_Error("GraphCanvas", connectionId.IsValid(), "Failed to recreate a connection after unsplicing a spliced node.");
for (const ConnectionEndpoints& removedConnection : m_opportunisticSpliceRemovals)
{
AZ::EntityId opportunisticConnectionId;
SlotRequestBus::EventResult(opportunisticConnectionId, removedConnection.m_sourceEndpoint.GetSlotId(), &SlotRequests::CreateConnectionWithEndpoint, removedConnection.m_targetEndpoint);
AZ_Error("GraphCanvas", opportunisticConnectionId.IsValid(), "Failed to recreate a connection after unsplicing a spliced node.");
}
m_opportunisticSpliceRemovals.clear();
PopUndoBlock();
}
}
void MimeDelegateSceneHelper::PushUndoBlock()
{
if (!m_pushedUndoBlock)
{
GraphModelRequestBus::Event(GetSceneId(), &GraphModelRequests::RequestPushPreventUndoStateUpdate);
m_pushedUndoBlock = true;
}
}
void MimeDelegateSceneHelper::PopUndoBlock()
{
if (m_pushedUndoBlock)
{
m_pushedUndoBlock = false;
GraphModelRequestBus::Event(GetSceneId(), &GraphModelRequests::RequestPopPreventUndoStateUpdate);
}
}
void MimeDelegateSceneHelper::AssignLastCreationToGroup()
{
if (m_groupTarget.IsValid() && !m_lastCreationGroup.empty())
{
AZStd::unordered_set< NodeId > filteredCreationGroup;
for (const auto& createdNode : m_lastCreationGroup)
{
if (GraphUtils::IsNodeWrapped(createdNode))
{
continue;
}
filteredCreationGroup.insert(createdNode);
}
if (!filteredCreationGroup.empty())
{
NodeGroupRequests* nodeGroupRequests = NodeGroupRequestBus::FindFirstHandler(m_groupTarget);
if (nodeGroupRequests)
{
nodeGroupRequests->AddElementsToGroup(filteredCreationGroup);
const bool growGroupOnly = true;
nodeGroupRequests->ResizeGroupToElements(growGroupOnly);
}
}
}
m_groupTarget.SetInvalid();
m_groupTargetStateSetter.ResetStateSetter();
}
///////////////////////
// GestureSceneHelper
///////////////////////
void GestureSceneHelper::Activate()
{
m_shakeCounter = 0;
m_trackingTarget.SetInvalid();
m_hasDirection = false;
m_timer.setSingleShot(true);
QObject::connect(&m_timer, &QTimer::timeout, [this]() { ResetTracker(); });
}
void GestureSceneHelper::Deactivate()
{
GeometryNotificationBus::Handler::BusDisconnect();
SceneNotificationBus::Handler::BusDisconnect();
AZ::SystemTickBus::Handler::BusDisconnect();
}
void GestureSceneHelper::TrackElement(const AZ::EntityId& elementId)
{
if (m_trackShake)
{
AZ_Error("GraphCanvas", !m_trackingTarget.IsValid(), "Trying to track a second target for gestures while still tracking the first.");
if (GeometryNotificationBus::Handler::BusIsConnected())
{
GeometryNotificationBus::Handler::BusDisconnect();
}
GeometryNotificationBus::Handler::BusConnect(elementId);
m_trackingTarget = elementId;
m_shakeCounter = 0;
m_hasDirection = false;
m_currentAnchor = QCursor::pos();
m_lastPoint = m_currentAnchor;
SceneNotificationBus::Handler::BusConnect(GetSceneId());
}
}
void GestureSceneHelper::ResetTracker()
{
m_hasDirection = false;
m_shakeCounter = 0;
}
void GestureSceneHelper::StopTrack()
{
SceneNotificationBus::Handler::BusDisconnect();
GeometryNotificationBus::Handler::BusDisconnect();
m_trackingTarget.SetInvalid();
}
void GestureSceneHelper::OnPositionChanged(const AZ::EntityId& itemId, const AZ::Vector2& position)
{
AZ_UNUSED(itemId);
AZ_UNUSED(position);
QPointF currentPoint = QCursor::pos();
QPointF currentDirection = currentPoint - m_lastPoint;
float length = QtVectorMath::GetLength(currentDirection);
if (length >= m_movementTolerance)
{
AZ::Vector2 currentVector = ConversionUtils::QPointToVector(currentDirection);
currentVector.Normalize();
AZ::Vector2 anchorVector = ConversionUtils::QPointToVector(currentPoint - m_currentAnchor);
anchorVector.Normalize();
if (m_hasDirection)
{
// Want to keep track of our current moving direction to see if we switched directions
// Also need to keep track of our ovverall moving direction to see if we strayed too far off course.
float currentDotProduct = m_lastDirection.Dot(currentVector);
float anchorDotProduct = m_lastDirection.Dot(anchorVector);
float totalLengthMoved = ConversionUtils::QPointToVector(m_currentAnchor - m_lastPoint).GetLength();
// This means we pivoted.
if (currentDotProduct <= -m_straightnessPercent && totalLengthMoved >= m_minimumDistance)
{
m_shakeCounter++;
if (m_shakeCounter >= m_shakeThreshold)
{
if (!AZ::SystemTickBus::Handler::BusIsConnected())
{
AZ::SystemTickBus::Handler::BusConnect();
}
m_handleShakeAction = true;
ResetTracker();
}
m_lastDirection = currentVector;
m_currentAnchor = m_lastPoint;
}
else if (anchorDotProduct <= m_straightnessPercent)
{
ResetTracker();
m_currentAnchor = currentPoint;
}
}
else
{
m_hasDirection = true;
m_lastDirection = currentVector;
m_shakeCounter = 0;
m_timer.stop();
m_timer.start();
}
m_lastPoint = currentPoint;
}
}
void GestureSceneHelper::OnSettingsChanged()
{
// We want to make our movement stuff relative so it deals with different resolutions reasonably well.
// This does not however deal with different monitors with different displays, since that is just
// sadness incarnate.
//
// Also currently doesn't handle screen resolution changing. Probably a signal for that though.
float movementToleranceAmount = 0.0f;
AssetEditorSettingsRequestBus::EventResult(movementToleranceAmount, GetEditorId(), &AssetEditorSettingsRequests::GetMinimumShakePercent);
float precisionTolerance = 0.0f;
AssetEditorSettingsRequestBus::EventResult(precisionTolerance, GetEditorId(), &AssetEditorSettingsRequests::GetShakeDeadZonePercent);
QScreen* screen = QApplication::primaryScreen();
QSize size = screen->size();
QPointF dimension(size.width(), size.height());
float length = QtVectorMath::GetLength(dimension);
m_movementTolerance = length * precisionTolerance;
m_minimumDistance = length * movementToleranceAmount;
AZStd::chrono::milliseconds duration(500);
AssetEditorSettingsRequestBus::EventResult(duration, GetEditorId(), &AssetEditorSettingsRequests::GetMaximumShakeDuration);
m_timer.setInterval(aznumeric_cast<int>(duration.count()));
AssetEditorSettingsRequestBus::EventResult(m_trackShake, GetEditorId(), &AssetEditorSettingsRequests::IsShakeToDespliceEnabled);
AssetEditorSettingsRequestBus::EventResult(m_shakeThreshold, GetEditorId(), &AssetEditorSettingsRequests::GetShakesToDesplice);
AssetEditorSettingsRequestBus::EventResult(m_straightnessPercent, GetEditorId(), &AssetEditorSettingsRequests::GetShakeStraightnessPercent);
}
void GestureSceneHelper::OnSystemTick()
{
if (m_handleShakeAction)
{
m_handleShakeAction = false;
HandleDesplice();
}
AZ::SystemTickBus::Handler::BusDisconnect();
}
void GestureSceneHelper::OnEditorIdSet()
{
OnSettingsChanged();
}
void GestureSceneHelper::HandleDesplice()
{
ScopedGraphUndoBlocker undoBlocker(GetSceneId());
bool despliced = false;
AZStd::vector< AZ::EntityId > selectedItems;
SceneRequestBus::EventResult(selectedItems, GetSceneId(), &SceneRequests::GetSelectedItems);
AZStd::unordered_set< AZ::EntityId > nodeGroups;
AZStd::unordered_set< NodeId > floatingNodeIds;
for (const AZ::EntityId& selectedItem : selectedItems)
{
if (GraphUtils::IsNodeGroup(selectedItem))
{
nodeGroups.insert(selectedItem);
floatingNodeIds.insert(selectedItem);
}
else if (GraphUtils::IsNode(selectedItem) || GraphUtils::IsCollapsedNodeGroup(selectedItem))
{
floatingNodeIds.insert(selectedItem);
}
}
SubGraphParsingConfig subGraphParseConfig;
for (const AZ::EntityId& nodeGroup : nodeGroups)
{
AZStd::vector< AZ::EntityId > groupedItems;
NodeGroupRequestBus::Event(nodeGroup, &NodeGroupRequests::FindGroupedElements, groupedItems);
for (const AZ::EntityId& groupedItem : groupedItems)
{
if (GraphUtils::IsNode(groupedItem)
|| GraphUtils::IsCollapsedNodeGroup(groupedItem))
{
floatingNodeIds.erase(groupedItem);
}
}
bool causeBurst = false;
SubGraphParsingResult subGraphResult = GraphUtils::ParseSceneMembersIntoSubGraphs(groupedItems, subGraphParseConfig);
for (const GraphSubGraph& subGraph : subGraphResult.m_subGraphs)
{
if (subGraph.m_entryConnections.empty() && subGraph.m_exitConnections.empty())
{
continue;
}
causeBurst = true;
GraphUtils::DetachSubGraphAndStitchConnections(subGraph);
}
if (causeBurst)
{
despliced = true;
AnimatedPulseConfiguration pulseConfiguration;
pulseConfiguration.m_durationSec = 0.5;
pulseConfiguration.m_enableGradient = true;
pulseConfiguration.m_drawColor = QColor(255, 255, 255);
QGraphicsItem* rootItem = nullptr;
SceneMemberUIRequestBus::EventResult(rootItem, nodeGroup, &SceneMemberUIRequests::GetRootGraphicsItem);
QRectF boundingArea;
if (rootItem)
{
pulseConfiguration.m_zValue = rootItem->zValue() + 1;
boundingArea = rootItem->sceneBoundingRect();
}
SceneRequestBus::Event(GetSceneId(), &SceneRequests::CreatePulseAroundArea, boundingArea, 3, pulseConfiguration);
}
}
AZStd::vector< AZ::EntityId > floatingElements(floatingNodeIds.begin(), floatingNodeIds.end());
SubGraphParsingResult subGraphResult = GraphUtils::ParseSceneMembersIntoSubGraphs(floatingElements, subGraphParseConfig);
if (subGraphResult.m_subGraphs.size() == 1)
{
for (const GraphSubGraph& subGraph : subGraphResult.m_subGraphs)
{
if (subGraph.m_entryConnections.empty() && subGraph.m_exitConnections.empty())
{
continue;
}
GraphUtils::DetachSubGraphAndStitchConnections(subGraph);
QRectF boundingRect;
int maxZValue = 0;
for (const AZ::EntityId& elementId : subGraph.m_containedNodes)
{
QGraphicsItem* item = nullptr;
SceneMemberUIRequestBus::EventResult(item, elementId, &SceneMemberUIRequests::GetRootGraphicsItem);
if (item)
{
if (item->zValue() > maxZValue)
{
maxZValue = aznumeric_cast<int>(item->zValue());
}
if (boundingRect.isEmpty())
{
boundingRect = item->sceneBoundingRect();
}
else
{
boundingRect |= item->sceneBoundingRect();
}
}
}
AnimatedPulseConfiguration pulseConfiguration;
pulseConfiguration.m_durationSec = 0.5;
pulseConfiguration.m_enableGradient = true;
pulseConfiguration.m_zValue = maxZValue + 1;
pulseConfiguration.m_drawColor = QColor(255, 255, 255);
SceneRequestBus::Event(GetSceneId(), &SceneRequests::CreatePulseAroundArea, boundingRect, 3, pulseConfiguration);
despliced = true;
}
}
if (despliced)
{
SceneRequestBus::Event(GetSceneId(), &SceneRequests::SignalDesplice);
}
}
///////////////
// Copy Utils
///////////////
void SerializeToBuffer(const GraphSerialization& serializationTarget, AZStd::vector<char>& buffer)
{
AZ::SerializeContext* serializeContext = AZ::EntityUtils::GetApplicationSerializeContext();
AZ::IO::ByteContainerStream<AZStd::vector<char>> stream(&buffer);
AZ::Utils::SaveObjectToStream(stream, AZ::DataStream::ST_BINARY, &serializationTarget, serializeContext);
}
void SerializeToClipboard(const GraphSerialization& serializationTarget)
{
AZ_Error("Graph Canvas", !serializationTarget.GetSerializationKey().empty(), "Serialization Key not server for scene serialization. Cannot push to clipboard.");
if (serializationTarget.GetSerializationKey().empty())
{
return;
}
AZStd::vector<char> buffer;
SerializeToBuffer(serializationTarget, buffer);
QMimeData* mime = new QMimeData();
mime->setData(serializationTarget.GetSerializationKey().c_str(), QByteArray(buffer.cbegin(), static_cast<int>(buffer.size())));
QClipboard* clipboard = QApplication::clipboard();
clipboard->setMimeData(mime);
}
///////////////////
// SceneComponent
///////////////////
constexpr unsigned int k_particleLimit = 250;
void BuildEndpointMap(GraphData& graphData)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
graphData.m_endpointMap.clear();
for (auto& connectionEntity : graphData.m_connections)
{
auto* connection = connectionEntity ? AZ::EntityUtils::FindFirstDerivedComponent<ConnectionComponent>(connectionEntity) : nullptr;
if (connection)
{
graphData.m_endpointMap.emplace(connection->GetSourceEndpoint(), connection->GetTargetEndpoint());
graphData.m_endpointMap.emplace(connection->GetTargetEndpoint(), connection->GetSourceEndpoint());
}
}
}
class GraphCanvasSceneDataEventHandler : public AZ::SerializeContext::IEventHandler
{
public:
/// Called to rebuild the Endpoint map
void OnWriteEnd(void* classPtr) override
{
auto* sceneData = reinterpret_cast<GraphData*>(classPtr);
BuildEndpointMap((*sceneData));
}
};
/////////////////////////////////
// GraphCanvasConstructSaveData
/////////////////////////////////
bool SceneComponent::GraphCanvasConstructSaveData::VersionConverter(AZ::SerializeContext& serializeContext, AZ::SerializeContext::DataElementNode& classElement)
{
if (classElement.GetVersion() == 1)
{
AZ::Crc32 typeId = AZ_CRC("Type", 0x8cde5729);
AZ::SerializeContext::DataElementNode* dataNode = classElement.FindSubElement(typeId);
ConstructType constructType = ConstructType::Unknown;
if (dataNode)
{
GraphCanvasConstructType deprecatedType = GraphCanvasConstructType::Unknown;
dataNode->GetData(deprecatedType);
if (deprecatedType == GraphCanvasConstructType::BlockCommentNode)
{
constructType = ConstructType::NodeGroup;
}
else if (deprecatedType == GraphCanvasConstructType::CommentNode)
{
constructType = ConstructType::CommentNode;
}
else if (deprecatedType == GraphCanvasConstructType::BookmarkAnchor)
{
constructType = ConstructType::BookmarkAnchor;
}
}
classElement.RemoveElementByName(typeId);
classElement.AddElementWithData(serializeContext, "Type", constructType);
}
return true;
}
///////////////////
// SceneComponent
///////////////////
void SceneComponent::Reflect(AZ::ReflectContext* context)
{
GraphSerialization::Reflect(context);
AZ::SerializeContext* serializeContext = azrtti_cast<AZ::SerializeContext*>(context);
if (!serializeContext)
{
return;
}
serializeContext->Class<GraphData>()
->Version(2)
->EventHandler<GraphCanvasSceneDataEventHandler>()
->Field("m_nodes", &GraphData::m_nodes)
->Field("m_connections", &GraphData::m_connections)
->Field("m_userData", &GraphData::m_userData)
->Field("m_bookmarkAnchors", &GraphData::m_bookmarkAnchors)
;
serializeContext->Class<GraphCanvasConstructSaveData>()
->Version(2, &GraphCanvasConstructSaveData::VersionConverter)
->Field("Type", &GraphCanvasConstructSaveData::m_constructType)
->Field("DataContainer", &GraphCanvasConstructSaveData::m_saveDataContainer)
;
serializeContext->Class<ViewParams>()
->Version(1)
->Field("Scale", &ViewParams::m_scale)
->Field("AnchorX", &ViewParams::m_anchorPointX)
->Field("AnchorY", &ViewParams::m_anchorPointY)
;
serializeContext->Class<SceneComponentSaveData>()
->Version(3)
->Field("Constructs", &SceneComponentSaveData::m_constructs)
->Field("ViewParams", &SceneComponentSaveData::m_viewParams)
->Field("BookmarkCounter", &SceneComponentSaveData::m_bookmarkCounter)
;
serializeContext->Class<SceneComponent, GraphCanvasPropertyComponent>()
->Version(3)
->Field("SceneData", &SceneComponent::m_graphData)
->Field("ViewParams", &SceneComponent::m_viewParams)
;
}
SceneComponent::SceneComponent()
: m_allowReset(false)
, m_deleteCount(0)
, m_dragSelectionType(DragSelectionType::OnRelease)
, m_isLoading(false)
, m_isPasting(false)
, m_activateScene(true)
, m_isDragSelecting(false)
, m_originalPosition(0,0)
, m_forceDragReleaseUndo(false)
, m_isDraggingEntity(false)
, m_isDraggingConnection(false)
, m_enableSpliceTracking(false)
, m_enableNodeDragConnectionSpliceTracking(false)
, m_enableNodeDragCouplingTracking(false)
, m_bookmarkCounter(0)
{
m_spliceTimer.setInterval(500);
m_spliceTimer.setSingleShot(true);
QObject::connect(&m_spliceTimer, &QTimer::timeout, [this]() { OnTrySplice(); });
}
SceneComponent::~SceneComponent()
{
DestroyItems(m_graphData.m_nodes);
DestroyItems(m_graphData.m_connections);
DestroyItems(m_graphData.m_bookmarkAnchors);
AZ::ComponentApplicationBus::Broadcast(&AZ::ComponentApplicationRequests::DeleteEntity, m_grid);
}
void SceneComponent::Init()
{
GRAPH_CANVAS_PROFILE_FUNCTION();
GraphCanvasPropertyComponent::Init();
// Make the QGraphicsScene Ui element for managing Qt scene items
m_graphicsSceneUi = AZStd::make_unique<GraphCanvasGraphicsScene>(*this);
AZ::EntityBus::Handler::BusConnect(GetEntityId());
AZ::Entity* gridEntity = GridComponent::CreateDefaultEntity();
m_grid = gridEntity->GetId();
InitItems(m_graphData.m_nodes);
InitConnections();
InitItems(m_graphData.m_bookmarkAnchors);
// Grids needs to be active for the save information parsing to work correctly
ActivateItems(AZStd::initializer_list<AZ::Entity*>{ AzToolsFramework::GetEntity(m_grid) });
////
EntitySaveDataRequestBus::Handler::BusConnect(GetEntityId());
}
void SceneComponent::Activate()
{
GRAPH_CANVAS_PROFILE_FUNCTION();
GraphCanvasPropertyComponent::Activate();
// Need to register this before activating saved nodes. Otherwise data is not properly setup.
const AZ::EntityId& entityId = GetEntityId();
SceneRequestBus::Handler::BusConnect(entityId);
SceneMimeDelegateRequestBus::Handler::BusConnect(entityId);
SceneBookmarkActionBus::Handler::BusConnect(entityId);
// Only want to activate the scene if we have something to activate
// Otherwise elements may be repeatedly activated/registered to the scene.
m_activateScene = !m_graphData.m_nodes.empty() || !m_graphData.m_bookmarkAnchors.empty();
m_mimeDelegateSceneHelper.SetSceneId(entityId);
m_gestureSceneHelper.SetSceneId(entityId);
m_nudgingController.SetGraphId(entityId);
m_mimeDelegateSceneHelper.Activate();
m_gestureSceneHelper.Activate();
}
void SceneComponent::Deactivate()
{
GRAPH_CANVAS_PROFILE_FUNCTION();
m_mimeDelegateSceneHelper.Deactivate();
m_gestureSceneHelper.Deactivate();
GraphCanvasPropertyComponent::Deactivate();
SceneBookmarkActionBus::Handler::BusDisconnect();
SceneMimeDelegateRequestBus::Handler::BusDisconnect();
SceneRequestBus::Handler::BusDisconnect();
AssetEditorSettingsNotificationBus::Handler::BusDisconnect();
m_activeDelegates.clear();
DeactivateItems(m_graphData.m_connections);
DeactivateItems(m_graphData.m_nodes);
DeactivateItems(m_graphData.m_bookmarkAnchors);
DeactivateItems(AZStd::initializer_list<AZ::Entity*>{ AzToolsFramework::GetEntity(m_grid) });
SceneMemberRequestBus::Event(m_grid, &SceneMemberRequests::ClearScene, GetEntityId());
}
void SceneComponent::OnSystemTick()
{
ProcessEnableDisableQueue();
}
void SceneComponent::OnEntityExists(const AZ::EntityId& /*entityId*/)
{
AZ::Entity* entity = GetEntity();
// A less then ideal way of doing version control on the scenes
BookmarkManagerComponent* bookmarkComponent = entity->FindComponent<BookmarkManagerComponent>();
if (bookmarkComponent == nullptr)
{
entity->CreateComponent<BookmarkManagerComponent>();
}
AZ::EntityBus::Handler::BusDisconnect(GetEntityId());
}
void SceneComponent::WriteSaveData(EntitySaveDataContainer& saveDataContainer) const
{
GRAPH_CANVAS_PROFILE_FUNCTION();
SceneComponentSaveData* saveData = saveDataContainer.FindCreateSaveData<SceneComponentSaveData>();
saveData->ClearConstructData();
for (AZ::Entity* currentEntity : m_graphData.m_nodes)
{
GraphCanvasConstructSaveData* constructSaveData = nullptr;
if (GraphUtils::IsComment(currentEntity->GetId()))
{
constructSaveData = aznew GraphCanvasConstructSaveData();
constructSaveData->m_constructType = ConstructType::CommentNode;
}
else if (GraphUtils::IsNodeGroup(currentEntity->GetId()))
{
constructSaveData = aznew GraphCanvasConstructSaveData();
constructSaveData->m_constructType = ConstructType::NodeGroup;
}
if (constructSaveData)
{
EntitySaveDataRequestBus::Event(currentEntity->GetId(), &EntitySaveDataRequests::WriteSaveData, constructSaveData->m_saveDataContainer);
saveData->m_constructs.push_back(constructSaveData);
}
}
saveData->m_constructs.reserve(saveData->m_constructs.size() + m_graphData.m_bookmarkAnchors.size());
for (AZ::Entity* currentEntity : m_graphData.m_bookmarkAnchors)
{
GraphCanvasConstructSaveData* constructSaveData = aznew GraphCanvasConstructSaveData();
constructSaveData->m_constructType = ConstructType::BookmarkAnchor;
EntitySaveDataRequestBus::Event(currentEntity->GetId(), &EntitySaveDataRequests::WriteSaveData, constructSaveData->m_saveDataContainer);
saveData->m_constructs.push_back(constructSaveData);
}
saveData->m_viewParams = m_viewParams;
saveData->m_bookmarkCounter = m_bookmarkCounter;
}
void SceneComponent::ReadSaveData(const EntitySaveDataContainer& saveDataContainer)
{
GRAPH_CANVAS_PROFILE_FUNCTION();
if (const SceneComponentSaveData* saveData = saveDataContainer.FindSaveDataAs<SceneComponentSaveData>())
{
for (const GraphCanvasConstructSaveData* currentConstruct : saveData->m_constructs)
{
AZ::Entity* constructEntity = nullptr;
switch (currentConstruct->m_constructType)
{
case ConstructType::CommentNode:
GraphCanvasRequestBus::BroadcastResult(constructEntity, &GraphCanvasRequests::CreateCommentNode);
break;
case ConstructType::NodeGroup:
GraphCanvasRequestBus::BroadcastResult(constructEntity, &GraphCanvasRequests::CreateNodeGroup);
break;
case ConstructType::BookmarkAnchor:
GraphCanvasRequestBus::BroadcastResult(constructEntity, &GraphCanvasRequests::CreateBookmarkAnchor);
break;
default:
break;
}
if (constructEntity)
{
constructEntity->Init();
constructEntity->Activate();
EntitySaveDataRequestBus::Event(constructEntity->GetId(), &EntitySaveDataRequests::ReadSaveData, currentConstruct->m_saveDataContainer);
Add(constructEntity->GetId());
}
}
m_viewParams = saveData->m_viewParams;
m_bookmarkCounter = saveData->m_bookmarkCounter;
}
}
AZStd::any* SceneComponent::GetUserData()
{
return &m_graphData.m_userData;
}
const AZStd::any* SceneComponent::GetUserDataConst() const
{
return &m_graphData.m_userData;
}
void SceneComponent::SetEditorId(const EditorId& editorId)
{
if (m_editorId != editorId)
{
m_editorId = editorId;
m_mimeDelegateSceneHelper.SetEditorId(editorId);
m_gestureSceneHelper.SetEditorId(editorId);
OnSettingsChanged();
AssetEditorSettingsNotificationBus::Handler::BusConnect(m_editorId);
StyleManagerNotificationBus::Handler::BusConnect(m_editorId);
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnStylesChanged);
StyleNotificationBus::Event(m_grid, &StyleNotifications::OnStyleChanged);
}
}
EditorId SceneComponent::GetEditorId() const
{
return m_editorId;
}
AZ::EntityId SceneComponent::GetGrid() const
{
return m_grid;
}
GraphicsEffectId SceneComponent::CreatePulse(const AnimatedPulseConfiguration& pulseConfiguration)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AnimatedPulse* animatedPulse = aznew AnimatedPulse(pulseConfiguration);
ConfigureAndAddGraphicsEffect(animatedPulse);
return animatedPulse->GetEffectId();
}
GraphicsEffectId SceneComponent::CreatePulseAroundArea(const QRectF& area, int gridSteps, AnimatedPulseConfiguration& pulseConfiguration)
{
AZ::EntityId gridId = GetGrid();
AZ::Vector2 minorPitch(0, 0);
GridRequestBus::EventResult(minorPitch, gridId, &GridRequests::GetMinorPitch);
pulseConfiguration.m_controlPoints.reserve(4);
for (QPointF currentPoint : { area.topLeft(), area.topRight(), area.bottomRight(), area.bottomLeft()})
{
QPointF directionVector = currentPoint - area.center();
directionVector = QtVectorMath::Normalize(directionVector);
QPointF finalPoint(currentPoint.x() + directionVector.x() * minorPitch.GetX() * gridSteps, currentPoint.y() + directionVector.y() * minorPitch.GetY() * gridSteps);
pulseConfiguration.m_controlPoints.emplace_back(currentPoint, finalPoint);
}
return CreatePulse(pulseConfiguration);
}
GraphicsEffectId SceneComponent::CreatePulseAroundSceneMember(const AZ::EntityId& memberId, int gridSteps, AnimatedPulseConfiguration pulseConfiguration)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
QGraphicsItem* graphicsItem = nullptr;
SceneMemberUIRequestBus::EventResult(graphicsItem, memberId, &SceneMemberUIRequests::GetRootGraphicsItem);
if (graphicsItem)
{
QRectF target = graphicsItem->sceneBoundingRect();
return CreatePulseAroundArea(target, gridSteps, pulseConfiguration);
}
return AZ::EntityId();
}
GraphicsEffectId SceneComponent::CreateCircularPulse(const AZ::Vector2& point, float initialRadius, float finalRadius, AnimatedPulseConfiguration pulseConfiguration)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
static const int k_circleSegemnts = 9;
pulseConfiguration.m_controlPoints.clear();
pulseConfiguration.m_controlPoints.reserve(k_circleSegemnts);
float step = AZ::Constants::TwoPi / static_cast<float>(k_circleSegemnts);
// Start it at some random offset just to hide the staticness of it.
float currentAngle = AZ::Constants::TwoPi * (static_cast<float>(std::rand()) / static_cast<float>(RAND_MAX));
for (int i = 0; i < k_circleSegemnts; ++i)
{
QPointF outerPoint;
outerPoint.setX(point.GetX() + initialRadius * std::sin(currentAngle));
outerPoint.setY(point.GetY() + initialRadius * std::cos(currentAngle));
QPointF innerPoint;
innerPoint.setX(point.GetX() + finalRadius * std::sin(currentAngle));
innerPoint.setY(point.GetY() + finalRadius * std::cos(currentAngle));
currentAngle += step;
if (currentAngle > AZ::Constants::TwoPi)
{
currentAngle -= AZ::Constants::TwoPi;
}
pulseConfiguration.m_controlPoints.emplace_back(outerPoint, innerPoint);
}
return CreatePulse(pulseConfiguration);
}
GraphicsEffectId SceneComponent::CreateOccluder(const OccluderConfiguration& occluderConfiguration)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
Occluder* occluder = aznew Occluder(occluderConfiguration);
ConfigureAndAddGraphicsEffect(occluder);
return occluder->GetEffectId();
}
GraphicsEffectId SceneComponent::CreateGlow(const FixedGlowOutlineConfiguration& configuration)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
GlowOutlineGraphicsItem* outlineGraphicsItem = aznew GlowOutlineGraphicsItem(configuration);
ConfigureAndAddGraphicsEffect(outlineGraphicsItem);
return outlineGraphicsItem->GetEffectId();
}
GraphicsEffectId SceneComponent::CreateGlowOnSceneMember(const SceneMemberGlowOutlineConfiguration& configuration)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
QGraphicsItem* graphicsItem = nullptr;
VisualRequestBus::EventResult(graphicsItem, configuration.m_sceneMember, &VisualRequests::AsGraphicsItem);
if (m_hiddenElements.count(graphicsItem) == 0)
{
GlowOutlineGraphicsItem* outlineGraphicsItem = aznew GlowOutlineGraphicsItem(configuration);
ConfigureAndAddGraphicsEffect(outlineGraphicsItem);
return outlineGraphicsItem->GetEffectId();
}
else
{
return GraphicsEffectId();
}
}
GraphicsEffectId SceneComponent::CreateParticle(const ParticleConfiguration& configuration)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
if constexpr (k_particleLimit == 0)
{
return GraphicsEffectId();
}
ParticleGraphicsItem* particleGraphicsItem = aznew ParticleGraphicsItem(configuration);
ConfigureAndAddGraphicsEffect(particleGraphicsItem);
m_activeParticles.emplace_back(particleGraphicsItem->GetEffectId());
if (m_activeParticles.size() >= k_particleLimit)
{
CancelGraphicsEffect(m_activeParticles.front());
}
return particleGraphicsItem->GetEffectId();
}
AZStd::vector< GraphicsEffectId > SceneComponent::ExplodeSceneMember(const AZ::EntityId& memberId, float fillPercent)
{
AZStd::vector< GraphicsEffectId > effectIds;
if (GraphUtils::IsNode(memberId) || GraphUtils::IsNodeGroup(memberId))
{
const Styling::StyleHelper* styleHelper = nullptr;
QColor drawColor;
if (GraphUtils::IsCollapsedNodeGroup(memberId))
{
AZ::EntityId sourceGroupId;
CollapsedNodeGroupRequestBus::EventResult(sourceGroupId, memberId, &CollapsedNodeGroupRequests::GetSourceGroup);
AZ::Color azColor;
NodeGroupRequestBus::EventResult(azColor, sourceGroupId, &NodeGroupRequests::GetGroupColor);
drawColor = ConversionUtils::AZToQColor(azColor);
}
else if (GraphUtils::IsNode(memberId))
{
PaletteIconConfiguration iconConfiguration;
NodeTitleRequestBus::Event(memberId, &NodeTitleRequests::ConfigureIconConfiguration, iconConfiguration);
StyleManagerRequestBus::EventResult(styleHelper, m_editorId, &StyleManagerRequests::FindPaletteIconStyleHelper, iconConfiguration);
}
else
{
AZ::Color azColor;
NodeGroupRequestBus::EventResult(azColor, memberId, &NodeGroupRequests::GetGroupColor);
drawColor = ConversionUtils::AZToQColor(azColor);
}
QGraphicsItem* graphicsItem = nullptr;
SceneMemberUIRequestBus::EventResult(graphicsItem, memberId, &SceneMemberUIRequests::GetRootGraphicsItem);
if (graphicsItem)
{
QRectF boundingRect = graphicsItem->sceneBoundingRect();
AZ::Vector2 minorPitch;
GridRequestBus::EventResult(minorPitch, GetGrid(), &GridRequests::GetMinorPitch);
AZ::Vector2 boxSize = minorPitch;
AZ::Vector2 impulseVector = minorPitch;
ParticleConfiguration baseConfiguration;
baseConfiguration.m_boundingArea = QRectF(0,0, boxSize.GetX(), boxSize.GetY());
baseConfiguration.m_hasGravity = true;
baseConfiguration.m_alphaFade = true;
baseConfiguration.m_alphaStart = 1.0f;
baseConfiguration.m_alphaEnd = 0.0f;
baseConfiguration.m_styleHelper = styleHelper;
baseConfiguration.m_color = drawColor;
baseConfiguration.m_zValue = aznumeric_cast<int>(graphicsItem->zValue());
boundingRect.adjust(minorPitch.GetX() * 0.5f, minorPitch.GetY() * 0.5f, -minorPitch.GetX() * 0.5f, -minorPitch.GetY() * 0.5f);
int yPos = aznumeric_cast<int>(boundingRect.top());
int xPos = aznumeric_cast<int>(boundingRect.left());
while (yPos < boundingRect.bottom())
{
while (xPos < boundingRect.right())
{
float skipChance = static_cast<float>(rand()) / static_cast<float>(RAND_MAX);
if (skipChance <= fillPercent)
{
baseConfiguration.m_boundingArea.moveTopLeft(QPointF(xPos, yPos));
double impulseVariance = static_cast<double>(rand()) / static_cast<double>(RAND_MAX);
double directionSpray = ((boundingRect.center().x() - xPos)/boundingRect.width()) * 2.0;
double xImpulse = impulseVector.GetX() * 10.0 * -directionSpray + impulseVector.GetX() * 6.0 * impulseVariance;
double yImpulse = -impulseVector.GetY() * 4.0 - impulseVector.GetY() * 2.0 * impulseVariance;
baseConfiguration.m_initialImpulse = QPointF(xImpulse, yImpulse);
baseConfiguration.m_lifespan = AZStd::chrono::milliseconds(400 + rand() % 125);
baseConfiguration.m_fadeTime = baseConfiguration.m_lifespan;
effectIds.emplace_back(CreateParticle(baseConfiguration));
}
xPos += aznumeric_cast<int>(minorPitch.GetX());
}
yPos += aznumeric_cast<int>(minorPitch.GetY());
xPos = aznumeric_cast<int>(boundingRect.left());
}
}
}
return effectIds;
}
void SceneComponent::CancelGraphicsEffect(const GraphicsEffectId& effectId)
{
QGraphicsItem* graphicsItem = nullptr;
GraphicsEffectRequestBus::EventResult(graphicsItem, effectId, &GraphicsEffectRequests::AsQGraphicsItem);
DestroyGraphicsItem(effectId, graphicsItem);
}
bool SceneComponent::AddNode(const AZ::EntityId& nodeId, const AZ::Vector2& position, bool isPaste)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZ::Entity* nodeEntity(AzToolsFramework::GetEntity(nodeId));
AZ_Assert(nodeEntity, "Node (ID: %s) Entity not found!", nodeId.ToString().data());
AZ_Assert(nodeEntity->GetState() == AZ::Entity::State::Active, "Only active node entities can be added to a scene");
QGraphicsItem* item = nullptr;
SceneMemberUIRequestBus::EventResult(item, nodeId, &SceneMemberUIRequests::GetRootGraphicsItem);
AZ_Assert(item && !item->parentItem(), "Nodes must have a \"root\", unparented visual/QGraphicsItem");
auto foundIt = AZStd::find_if(m_graphData.m_nodes.begin(), m_graphData.m_nodes.end(), [&nodeEntity](const AZ::Entity* node) { return node->GetId() == nodeEntity->GetId(); });
if (foundIt == m_graphData.m_nodes.end())
{
m_graphData.m_nodes.emplace(nodeEntity);
AddSceneMember(nodeId, true, position);
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnNodeAdded, nodeId, isPaste);
m_mimeDelegateSceneHelper.SignalNodeCreated(nodeId);
return true;
}
return false;
}
void SceneComponent::AddNodes(const AZStd::vector<AZ::EntityId>& nodeIds)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
for (const auto& nodeId : nodeIds)
{
AZ::Vector2 position;
GeometryRequestBus::EventResult(position, nodeId, &GeometryRequests::GetPosition);
AddNode(nodeId, position, false);
}
}
bool SceneComponent::RemoveNode(const AZ::EntityId& nodeId)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
auto foundIt = AZStd::find_if(m_graphData.m_nodes.begin(), m_graphData.m_nodes.end(), [&nodeId](const AZ::Entity* node) { return node->GetId() == nodeId; });
if (foundIt != m_graphData.m_nodes.end())
{
VisualNotificationBus::MultiHandler::BusDisconnect(nodeId);
GeometryNotificationBus::MultiHandler::BusDisconnect(nodeId);
m_graphData.m_nodes.erase(foundIt);
SceneMemberNotificationBus::Event(nodeId, &SceneMemberNotifications::PreOnRemovedFromScene, GetEntityId());
QGraphicsItem* item = nullptr;
SceneMemberUIRequestBus::EventResult(item, nodeId, &SceneMemberUIRequests::GetRootGraphicsItem);
RemoveItemFromScene(item);
UnregisterSelectionItem(nodeId);
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnNodeRemoved, nodeId);
SceneMemberRequestBus::Event(nodeId, &SceneMemberRequests::ClearScene, GetEntityId());
return true;
}
return false;
}
AZStd::vector<AZ::EntityId> SceneComponent::GetNodes() const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZStd::vector<AZ::EntityId> result;
for (const auto& nodeRef : m_graphData.m_nodes)
{
result.push_back(nodeRef->GetId());
}
return result;
}
AZStd::vector<AZ::EntityId> SceneComponent::GetSelectedNodes() const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZStd::vector<AZ::EntityId> result;
if (m_graphicsSceneUi)
{
const QList<QGraphicsItem*> selected(m_graphicsSceneUi->selectedItems());
result.reserve(selected.size());
for (QGraphicsItem* item : selected)
{
auto entry = m_itemLookup.find(item);
if (entry != m_itemLookup.end())
{
AZ::Entity* entity = nullptr;
AZ::ComponentApplicationBus::BroadcastResult(entity, &AZ::ComponentApplicationRequests::FindEntity, entry->second);
if (m_graphData.m_nodes.count(entity) > 0)
{
result.push_back(entity->GetId());
}
}
}
}
return result;
}
void SceneComponent::DeleteNodeAndStitchConnections(const AZ::EntityId& node)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
if (node.IsValid())
{
const AZ::EntityId& entityId = GetEntityId();
GraphModelRequestBus::Event(entityId, &GraphModelRequests::RequestPushPreventUndoStateUpdate);
float explosionDensity = 0.6f;
if (GraphUtils::IsNodeGroup(node))
{
explosionDensity = 0.3f;
}
ExplodeSceneMember(node, explosionDensity);
GraphUtils::DetachNodeAndStitchConnections(node);
Delete({ node });
GraphModelRequestBus::Event(entityId, &GraphModelRequests::RequestPopPreventUndoStateUpdate);
GraphModelRequestBus::Event(entityId, &GraphModelRequests::RequestUndoPoint);
}
}
AZ::EntityId SceneComponent::CreateConnectionBetween(const Endpoint& sourceEndpoint, const Endpoint& targetEndpoint)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
if (!sourceEndpoint.IsValid() || !targetEndpoint.IsValid())
{
return AZ::EntityId();
}
AZ::EntityId connectionId;
bool isValidConnection = false;
SlotRequestBus::EventResult(isValidConnection, sourceEndpoint.GetSlotId(), &SlotRequests::CanCreateConnectionTo, targetEndpoint);
if (isValidConnection)
{
SlotRequestBus::EventResult(connectionId, sourceEndpoint.GetSlotId(), &SlotRequests::CreateConnectionWithEndpoint, targetEndpoint);
}
return connectionId;
}
bool SceneComponent::AddConnection(const AZ::EntityId& connectionId)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZ_Assert(connectionId.IsValid(), "Connection ID %s is not valid!", connectionId.ToString().data());
AZ::Entity* connectionEntity(AzToolsFramework::GetEntity(connectionId));
auto connection = connectionEntity ? AZ::EntityUtils::FindFirstDerivedComponent<ConnectionComponent>(connectionEntity) : nullptr;
AZ_Warning("Graph Canvas", connection->GetEntity()->GetState() == AZ::Entity::State::Active, "Only active connection entities can be added to a scene");
AZ_Warning("Graph Canvas", connection, "Couldn't find the connection's component (ID: %s)!", connectionId.ToString().data());
if (connection)
{
auto foundIt = AZStd::find_if(m_graphData.m_connections.begin(), m_graphData.m_connections.end(), [&connection](const AZ::Entity* connectionEntity) { return connectionEntity->GetId() == connection->GetEntityId(); });
if (foundIt == m_graphData.m_connections.end())
{
AddSceneMember(connectionId);
m_graphData.m_connections.emplace(connection->GetEntity());
Endpoint sourceEndpoint;
ConnectionRequestBus::EventResult(sourceEndpoint, connectionId, &ConnectionRequests::GetSourceEndpoint);
Endpoint targetEndpoint;
ConnectionRequestBus::EventResult(targetEndpoint, connectionId, &ConnectionRequests::GetTargetEndpoint);
m_graphData.m_endpointMap.emplace(sourceEndpoint, targetEndpoint);
m_graphData.m_endpointMap.emplace(targetEndpoint, sourceEndpoint);
SlotRequestBus::Event(sourceEndpoint.GetSlotId(), &SlotRequests::AddConnectionId, connectionId, targetEndpoint);
SlotRequestBus::Event(targetEndpoint.GetSlotId(), &SlotRequests::AddConnectionId, connectionId, sourceEndpoint);
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnConnectionAdded, connectionId);
return true;
}
}
return false;
}
void SceneComponent::AddConnections(const AZStd::vector<AZ::EntityId>& connectionIds)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
for (const auto& connectionId : connectionIds)
{
AddConnection(connectionId);
}
}
bool SceneComponent::RemoveConnection(const AZ::EntityId& connectionId)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZ_Assert(connectionId.IsValid(), "Connection ID %s is not valid!", connectionId.ToString().data());
auto foundIt = AZStd::find_if(m_graphData.m_connections.begin(), m_graphData.m_connections.end(), [&connectionId](const AZ::Entity* connection) { return connection->GetId() == connectionId; });
if (foundIt != m_graphData.m_connections.end())
{
VisualNotificationBus::MultiHandler::BusDisconnect(connectionId);
GeometryNotificationBus::MultiHandler::BusDisconnect(connectionId);
Endpoint sourceEndpoint;
ConnectionRequestBus::EventResult(sourceEndpoint, connectionId, &ConnectionRequests::GetSourceEndpoint);
Endpoint targetEndpoint;
ConnectionRequestBus::EventResult(targetEndpoint, connectionId, &ConnectionRequests::GetTargetEndpoint);
m_graphData.m_endpointMap.erase(sourceEndpoint);
m_graphData.m_endpointMap.erase(targetEndpoint);
m_graphData.m_connections.erase(foundIt);
QGraphicsItem* item{};
SceneMemberUIRequestBus::EventResult(item, connectionId, &SceneMemberUIRequests::GetRootGraphicsItem);
AZ_Assert(item, "Connections must have a visual/QGraphicsItem");
RemoveItemFromScene(item);
UnregisterSelectionItem(connectionId);
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnConnectionRemoved, connectionId);
SlotRequestBus::Event(targetEndpoint.GetSlotId(), &SlotRequests::RemoveConnectionId, connectionId, sourceEndpoint);
SlotRequestBus::Event(sourceEndpoint.GetSlotId(), &SlotRequests::RemoveConnectionId, connectionId, targetEndpoint);
return true;
}
return false;
}
AZStd::vector<AZ::EntityId> SceneComponent::GetConnections() const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZStd::vector<AZ::EntityId> result;
for (const auto& connection : m_graphData.m_connections)
{
result.push_back(connection->GetId());
}
return result;
}
AZStd::vector<AZ::EntityId> SceneComponent::GetSelectedConnections() const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZStd::vector<AZ::EntityId> result;
if (m_graphicsSceneUi)
{
const QList<QGraphicsItem*> selected(m_graphicsSceneUi->selectedItems());
result.reserve(selected.size());
for (QGraphicsItem* item : selected)
{
auto entry = m_itemLookup.find(item);
if (entry != m_itemLookup.end())
{
AZ::Entity* entity{};
AZ::ComponentApplicationBus::BroadcastResult(entity, &AZ::ComponentApplicationRequests::FindEntity, entry->second);
if (entity && AZ::EntityUtils::FindFirstDerivedComponent<ConnectionComponent>(entity))
{
result.push_back(entity->GetId());
}
}
}
}
return result;
}
AZStd::vector<AZ::EntityId> SceneComponent::GetConnectionsForEndpoint(const Endpoint& firstEndpoint) const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZStd::vector<AZ::EntityId> result;
for (const auto& connection : m_graphData.m_connections)
{
Endpoint sourceEndpoint;
ConnectionRequestBus::EventResult(sourceEndpoint, connection->GetId(), &ConnectionRequests::GetSourceEndpoint);
Endpoint targetEndpoint;
ConnectionRequestBus::EventResult(targetEndpoint, connection->GetId(), &ConnectionRequests::GetTargetEndpoint);
if (sourceEndpoint == firstEndpoint || targetEndpoint == firstEndpoint)
{
result.push_back(connection->GetId());
}
}
return result;
}
bool SceneComponent::IsEndpointConnected(const Endpoint& endpoint) const
{
return m_graphData.m_endpointMap.count(endpoint) > 0;
}
AZStd::vector<Endpoint> SceneComponent::GetConnectedEndpoints(const Endpoint& firstEndpoint) const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZStd::vector<Endpoint> connectedEndpoints;
auto otherEndpointsRange = m_graphData.m_endpointMap.equal_range(firstEndpoint);
for (auto otherIt = otherEndpointsRange.first; otherIt != otherEndpointsRange.second; ++otherIt)
{
connectedEndpoints.push_back(otherIt->second);
}
return connectedEndpoints;
}
bool SceneComponent::CreateConnection(const Endpoint& sourceEndpoint, const Endpoint& targetEndpoint)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZ::Entity* foundEntity = nullptr;
if (FindConnection(foundEntity, sourceEndpoint, targetEndpoint))
{
AZ_Warning("Graph Canvas", false, "Attempting to create duplicate connection between source endpoint (%s, %s) and target endpoint(%s, %s)",
sourceEndpoint.GetNodeId().ToString().data(), sourceEndpoint.GetSlotId().ToString().data(),
targetEndpoint.GetNodeId().ToString().data(), targetEndpoint.GetSlotId().ToString().data());
return false;
}
// Hunt through our nodes for both the source and target endpoint at the same time.
AZStd::pair<bool, bool> findResult(false, false);
AZStd::find_if(m_graphData.m_nodes.begin(), m_graphData.m_nodes.end(), [&findResult, &sourceEndpoint, &targetEndpoint](const AZ::Entity* node)
{
findResult.first = findResult.first || node->GetId() == sourceEndpoint.GetNodeId();
findResult.second = findResult.second || node->GetId() == targetEndpoint.GetNodeId();
return findResult.first && findResult.second;
}
);
if (!findResult.first)
{
AZ_Error("Scene", false, "The source node with id %s is not in this scene, a connection cannot be made", sourceEndpoint.GetNodeId().ToString().data());
return false;
}
else if (!findResult.second)
{
AZ_Error("Scene", false, "The target node with id %s is not in this scene, a connection cannot be made", targetEndpoint.GetNodeId().ToString().data());
return false;
}
AZ::EntityId connectionEntity;
SlotRequestBus::EventResult(connectionEntity, sourceEndpoint.GetSlotId(), &SlotRequests::CreateConnectionWithEndpoint, targetEndpoint);
return true;
}
bool SceneComponent::DisplayConnection(const Endpoint& sourceEndpoint, const Endpoint& targetEndpoint)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZ::Entity* foundEntity = nullptr;
if (FindConnection(foundEntity, sourceEndpoint, targetEndpoint))
{
AZ_Warning("Graph Canvas", false, "Attempting to create duplicate connection between source endpoint (%s, %s) and target endpoint(%s, %s)",
sourceEndpoint.GetNodeId().ToString().data(), sourceEndpoint.GetSlotId().ToString().data(),
targetEndpoint.GetNodeId().ToString().data(), targetEndpoint.GetSlotId().ToString().data());
return false;
}
// Hunt through our nodes for both the source and target endpoint at the same time.
AZStd::pair<bool, bool> findResult(false, false);
AZStd::find_if(m_graphData.m_nodes.begin(), m_graphData.m_nodes.end(), [&findResult, &sourceEndpoint, &targetEndpoint](const AZ::Entity* node)
{
findResult.first = findResult.first || node->GetId() == sourceEndpoint.GetNodeId();
findResult.second = findResult.second || node->GetId() == targetEndpoint.GetNodeId();
return findResult.first && findResult.second;
}
);
if (!findResult.first)
{
AZ_Error("Scene", false, "The source node with id %s is not in this scene, a connection cannot be made", sourceEndpoint.GetNodeId().ToString().data());
return false;
}
else if (!findResult.second)
{
AZ_Error("Scene", false, "The target node with id %s is not in this scene, a connection cannot be made", targetEndpoint.GetNodeId().ToString().data());
return false;
}
AZ::EntityId connectionEntity;
SlotRequestBus::EventResult(connectionEntity, sourceEndpoint.GetSlotId(), &SlotRequests::DisplayConnectionWithEndpoint, targetEndpoint);
return true;
}
bool SceneComponent::Disconnect(const Endpoint& sourceEndpoint, const Endpoint& targetEndpoint)
{
AZ::Entity* connectionEntity = nullptr;
if (FindConnection(connectionEntity, sourceEndpoint, targetEndpoint) && RemoveConnection(connectionEntity->GetId()))
{
delete connectionEntity;
return true;
}
return false;
}
bool SceneComponent::DisconnectById(const AZ::EntityId& connectionId)
{
if (RemoveConnection(connectionId))
{
AZ::ComponentApplicationBus::Broadcast(&AZ::ComponentApplicationRequests::DeleteEntity, connectionId);
return true;
}
return false;
}
bool SceneComponent::FindConnection(AZ::Entity*& connectionEntity, const Endpoint& sourceEndpoint, const Endpoint& targetEndpoint) const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZ::Entity* foundEntity = nullptr;
AZStd::vector< ConnectionId > connectionIds;
SlotRequestBus::EventResult(connectionIds, sourceEndpoint.GetSlotId(), &SlotRequests::GetConnections);
for (const ConnectionId& connectionId : connectionIds)
{
Endpoint testTargetEndpoint;
ConnectionRequestBus::EventResult(testTargetEndpoint, connectionId, &ConnectionRequests::GetTargetEndpoint);
if (targetEndpoint == testTargetEndpoint)
{
AZ::ComponentApplicationBus::BroadcastResult(foundEntity, &AZ::ComponentApplicationRequests::FindEntity, connectionId);
break;
}
}
if (foundEntity)
{
connectionEntity = foundEntity;
return true;
}
return false;
}
bool SceneComponent::AddBookmarkAnchor(const AZ::EntityId& bookmarkAnchorId, const AZ::Vector2& position)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZ::Entity* anchorEntity(AzToolsFramework::GetEntity(bookmarkAnchorId));
AZ_Assert(anchorEntity, "BookmarkAnchor (ID: %s) Entity not found!", bookmarkAnchorId.ToString().data());
AZ_Assert(anchorEntity->GetState() == AZ::Entity::State::Active, "Only active node entities can be added to a scene");
QGraphicsItem* item = nullptr;
SceneMemberUIRequestBus::EventResult(item, bookmarkAnchorId, &SceneMemberUIRequests::GetRootGraphicsItem);
AZ_Assert(item && !item->parentItem(), "BookmarkAnchors must have a \"root\", unparented visual/QGraphicsItem");
auto foundIt = AZStd::find_if(m_graphData.m_bookmarkAnchors.begin(), m_graphData.m_bookmarkAnchors.end(), [&anchorEntity](const AZ::Entity* entity) { return entity->GetId() == anchorEntity->GetId(); });
if (foundIt == m_graphData.m_bookmarkAnchors.end())
{
m_graphData.m_bookmarkAnchors.emplace(anchorEntity);
AddSceneMember(bookmarkAnchorId, true, position);
return true;
}
return false;
}
bool SceneComponent::RemoveBookmarkAnchor(const AZ::EntityId& bookmarkAnchorId)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
auto foundIt = AZStd::find_if(m_graphData.m_bookmarkAnchors.begin(), m_graphData.m_bookmarkAnchors.end(), [&bookmarkAnchorId](const AZ::Entity* anchorEntity) { return anchorEntity->GetId() == bookmarkAnchorId; });
if (foundIt != m_graphData.m_bookmarkAnchors.end())
{
VisualNotificationBus::MultiHandler::BusDisconnect(bookmarkAnchorId);
GeometryNotificationBus::MultiHandler::BusDisconnect(bookmarkAnchorId);
m_graphData.m_bookmarkAnchors.erase(foundIt);
QGraphicsItem* item = nullptr;
SceneMemberUIRequestBus::EventResult(item, bookmarkAnchorId, &SceneMemberUIRequests::GetRootGraphicsItem);
RemoveItemFromScene(item);
UnregisterSelectionItem(bookmarkAnchorId);
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnSceneMemberRemoved, bookmarkAnchorId);
SceneMemberRequestBus::Event(bookmarkAnchorId, &SceneMemberRequests::ClearScene, GetEntityId());
return true;
}
return false;
}
bool SceneComponent::Add(const AZ::EntityId& entityId, bool isPaste)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZ::Entity* actual = nullptr;
AZ::ComponentApplicationBus::BroadcastResult(actual, &AZ::ComponentApplicationRequests::FindEntity, entityId);
if (!actual)
{
return false;
}
if (AZ::EntityUtils::FindFirstDerivedComponent<NodeComponent>(actual))
{
AZ::Vector2 position;
GeometryRequestBus::EventResult(position, entityId, &GeometryRequests::GetPosition);
return AddNode(entityId, position, isPaste);
}
else if (AZ::EntityUtils::FindFirstDerivedComponent<ConnectionComponent>(actual))
{
return AddConnection(entityId);
}
else if (AZ::EntityUtils::FindFirstDerivedComponent<BookmarkAnchorComponent>(actual))
{
AZ::Vector2 position;
GeometryRequestBus::EventResult(position, entityId, &GeometryRequests::GetPosition);
return AddBookmarkAnchor(entityId, position);
}
else
{
AZ_Error("Scene", false, "The entity does not appear to be a valid scene membership candidate (ID: %s)", entityId.ToString().data());
}
return false;
}
bool SceneComponent::Remove(const AZ::EntityId& entityId)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZ::Entity* actual = nullptr;
AZ::ComponentApplicationBus::BroadcastResult(actual, &AZ::ComponentApplicationRequests::FindEntity, entityId);
if (!actual)
{
return false;
}
if (m_pressedEntity == entityId)
{
VisualNotificationBus::Event(m_pressedEntity, &VisualNotifications::OnMouseRelease, m_pressedEntity, nullptr);
}
if (AZ::EntityUtils::FindFirstDerivedComponent<NodeComponent>(actual))
{
return RemoveNode(entityId);
}
else if (AZ::EntityUtils::FindFirstDerivedComponent<ConnectionComponent>(actual))
{
return RemoveConnection(entityId);
}
else if (AZ::EntityUtils::FindFirstDerivedComponent<BookmarkAnchorComponent>(actual))
{
return RemoveBookmarkAnchor(entityId);
}
else
{
AZ_Error("Scene", false, "The entity does not appear to be a valid scene membership candidate (ID: %s)", entityId.ToString().data());
}
return false;
}
bool SceneComponent::Show(const AZ::EntityId& graphMember)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
if (m_graphicsSceneUi)
{
QGraphicsItem* graphicsItem = nullptr;
SceneMemberUIRequestBus::EventResult(graphicsItem, graphMember, &SceneMemberUIRequests::GetRootGraphicsItem);
if (graphicsItem)
{
auto hiddenIter = m_hiddenElements.find(graphicsItem);
bool isWrapped = false;
NodeRequestBus::EventResult(isWrapped, graphMember, &NodeRequests::IsWrapped);
if (!isWrapped)
{
if (hiddenIter != m_hiddenElements.end())
{
if (GeometryRequestBus::FindFirstHandler(graphMember) != nullptr)
{
AZ::Vector2 position(0, 0);
GeometryRequestBus::EventResult(position, graphMember, &GeometryRequests::GetPosition);
graphicsItem->setPos(ConversionUtils::AZToQPoint(position));
}
graphicsItem->show();
SceneMemberNotificationBus::Event(graphMember, &SceneMemberNotifications::OnSceneMemberShown);
m_hiddenElements.erase(hiddenIter);
return true;
}
}
else
{
if (hiddenIter != m_hiddenElements.end())
{
m_hiddenElements.erase(hiddenIter);
}
graphicsItem->show();
return true;
}
}
}
return false;
}
bool SceneComponent::Hide(const AZ::EntityId& graphMember)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
if (m_graphicsSceneUi)
{
QGraphicsItem* graphicsItem = nullptr;
SceneMemberUIRequestBus::EventResult(graphicsItem, graphMember, &SceneMemberUIRequests::GetRootGraphicsItem);
if (graphicsItem)
{
graphicsItem->hide();
auto insertResult = m_hiddenElements.insert(graphicsItem);
if (insertResult.second)
{
SceneMemberNotificationBus::Event(graphMember, &SceneMemberNotifications::OnSceneMemberHidden);
}
return insertResult.second;
}
}
return false;
}
bool SceneComponent::IsHidden(const AZ::EntityId& graphMember) const
{
QGraphicsItem* graphicsItem = nullptr;
SceneMemberUIRequestBus::EventResult(graphicsItem, graphMember, &SceneMemberUIRequests::GetRootGraphicsItem);
return m_hiddenElements.find(graphicsItem) != m_hiddenElements.end();
}
bool SceneComponent::Enable(const NodeId& nodeId)
{
if (!AZ::SystemTickBus::Handler::BusIsConnected())
{
AZ::SystemTickBus::Handler::BusConnect();
}
m_queuedDisable.erase(nodeId);
auto insertResult = m_queuedEnable.insert(nodeId);
return insertResult.second;
}
void SceneComponent::EnableVisualState(const NodeId& nodeId)
{
if (!AZ::SystemTickBus::Handler::BusIsConnected())
{
AZ::SystemTickBus::Handler::BusConnect();
}
m_queuedVisualDisable.erase(nodeId);
m_queuedVisualEnable.insert(nodeId);
}
void SceneComponent::EnableSelection()
{
AZStd::vector< NodeId > selectedNodes = GetSelectedNodes();
for (NodeId nodeId : selectedNodes)
{
Enable(nodeId);
}
}
bool SceneComponent::Disable(const NodeId& nodeId)
{
if (!AZ::SystemTickBus::Handler::BusIsConnected())
{
AZ::SystemTickBus::Handler::BusConnect();
}
m_queuedEnable.erase(nodeId);
auto insertResult = m_queuedDisable.insert(nodeId);
return insertResult.second;
}
void SceneComponent::DisableVisualState(const NodeId& nodeId)
{
if (!AZ::SystemTickBus::Handler::BusIsConnected())
{
AZ::SystemTickBus::Handler::BusConnect();
}
m_queuedVisualEnable.erase(nodeId);
m_queuedVisualDisable.insert(nodeId);
}
void SceneComponent::DisableSelection()
{
AZStd::vector< NodeId > selectedNodes = GetSelectedNodes();
for (NodeId nodeId : selectedNodes)
{
// Temporarily disable collapsed node groups until we figure out how disabled groups should work.
//
// Node groups can still be partially disabled if they're connections are disabled, but you won't be able
// to disable them directly.
if (!GraphUtils::IsCollapsedNodeGroup(nodeId))
{
Disable(nodeId);
}
}
}
void SceneComponent::ProcessEnableDisableQueue()
{
if (!m_queuedDisable.empty())
{
GraphModelRequestBus::Event(GetEntityId(), &GraphModelRequests::DisableNodes, m_queuedDisable);
m_queuedDisable.clear();
}
if (!m_queuedEnable.empty())
{
GraphModelRequestBus::Event(GetEntityId(), &GraphModelRequests::EnableNodes, m_queuedEnable);
m_queuedEnable.clear();
}
if (!m_queuedVisualDisable.empty())
{
GraphUtils::SetNodesEnabledState(m_queuedVisualDisable, RootGraphicsItemEnabledState::ES_Disabled);
m_queuedVisualDisable.clear();
}
if (!m_queuedVisualEnable.empty())
{
GraphUtils::SetNodesEnabledState(m_queuedVisualEnable, RootGraphicsItemEnabledState::ES_Enabled);
m_queuedVisualEnable.clear();
}
AZ::SystemTickBus::Handler::BusDisconnect();
}
void SceneComponent::ClearSelection()
{
if (m_graphicsSceneUi)
{
QSignalBlocker signalBlocker(m_graphicsSceneUi.get());
m_graphicsSceneUi->clearSelection();
// Always signal the selection change when being told to clear selection.
// Makes it easier to synchronize selections states across multiple panels.
OnSelectionChanged();
}
}
void SceneComponent::SetSelectedArea(const AZ::Vector2& topLeft, const AZ::Vector2& topRight)
{
if (m_graphicsSceneUi)
{
QPainterPath path;
path.addRect(QRectF{ QPointF {topLeft.GetX(), topLeft.GetY()}, QPointF { topRight.GetX(), topRight.GetY() } });
m_graphicsSceneUi->setSelectionArea(path);
}
}
void SceneComponent::SelectAll()
{
if (m_graphicsSceneUi)
{
QPainterPath path;
path.addRect(m_graphicsSceneUi->sceneRect());
m_graphicsSceneUi->setSelectionArea(path);
}
}
void SceneComponent::SelectAllRelative(ConnectionType connectionDirection)
{
AZStd::vector<AZ::EntityId> seedNodes = GetSelectedNodes();
AZStd::unordered_set<AZ::EntityId> selectableNodes;
GraphUtils::FindConnectedNodes(seedNodes, selectableNodes, { connectionDirection });
AssetEditorRequestBus::Event(GetEditorId(), &AssetEditorRequests::OnSelectionManipulationBegin);
for (const AZ::EntityId& nodeId : selectableNodes)
{
SceneMemberUIRequestBus::Event(nodeId, &SceneMemberUIRequests::SetSelected, true);
}
AssetEditorRequestBus::Event(GetEditorId(), &AssetEditorRequests::OnSelectionManipulationEnd);
}
void SceneComponent::SelectConnectedNodes()
{
AZStd::vector<AZ::EntityId> seedNodes = GetSelectedNodes();
AZStd::unordered_set<AZ::EntityId> selectableNodes;
GraphUtils::FindConnectedNodes(seedNodes, selectableNodes, { ConnectionType::CT_Input, ConnectionType::CT_Output });
AssetEditorRequestBus::Event(GetEditorId(), &AssetEditorRequests::OnSelectionManipulationBegin);
for (const AZ::EntityId& nodeId : selectableNodes)
{
SceneMemberUIRequestBus::Event(nodeId, &SceneMemberUIRequests::SetSelected, true);
}
AssetEditorRequestBus::Event(GetEditorId(), &AssetEditorRequests::OnSelectionManipulationEnd);
}
bool SceneComponent::HasSelectedItems() const
{
return m_graphicsSceneUi ? !m_graphicsSceneUi->selectedItems().isEmpty() : false;
}
bool SceneComponent::HasMultipleSelection() const
{
return m_graphicsSceneUi ? m_graphicsSceneUi->selectedItems().count() > 1 : false;
}
bool SceneComponent::HasCopiableSelection() const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
bool hasCopiableSelection = false;
if (m_graphicsSceneUi)
{
const QList<QGraphicsItem*> selected(m_graphicsSceneUi->selectedItems());
for (QGraphicsItem* item : selected)
{
auto entry = m_itemLookup.find(item);
if (entry != m_itemLookup.end())
{
AZ::Entity* entity = nullptr;
AZ::ComponentApplicationBus::BroadcastResult(entity, &AZ::ComponentApplicationRequests::FindEntity, entry->second);
if (m_graphData.m_nodes.count(entity) > 0)
{
hasCopiableSelection = true;
break;
}
else if (m_graphData.m_bookmarkAnchors.count(entity) > 0)
{
hasCopiableSelection = true;
break;
}
}
}
}
return hasCopiableSelection;
}
bool SceneComponent::HasEntitiesAt(const AZ::Vector2& scenePoint) const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
bool retVal = false;
if (m_graphicsSceneUi)
{
QList<QGraphicsItem*> itemsThere = m_graphicsSceneUi->items(QPointF(scenePoint.GetX(), scenePoint.GetY()));
for (QGraphicsItem* item : itemsThere)
{
auto entry = m_itemLookup.find(item);
if (entry != m_itemLookup.end() && entry->second != m_grid)
{
retVal = true;
break;
}
}
}
return retVal;
}
AZStd::vector<AZ::EntityId> SceneComponent::GetSelectedItems() const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZStd::vector<AZ::EntityId> result;
if (m_graphicsSceneUi)
{
const QList<QGraphicsItem*> selected(m_graphicsSceneUi->selectedItems());
result.reserve(selected.size());
for (QGraphicsItem* item : selected)
{
auto entry = m_itemLookup.find(item);
if (entry != m_itemLookup.end())
{
result.push_back(entry->second);
}
}
}
return result;
}
QGraphicsScene* SceneComponent::AsQGraphicsScene()
{
return m_graphicsSceneUi.get();
}
void SceneComponent::CopySelection() const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZStd::vector<AZ::EntityId> entities = GetSelectedItems();
Copy(entities);
}
void SceneComponent::Copy(const AZStd::vector<AZ::EntityId>& selectedItems) const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnCopyBegin);
GraphSerialization serializationTarget(m_copyMimeType);
SerializeEntities({ selectedItems.begin(), selectedItems.end() }, serializationTarget);
SerializeToClipboard(serializationTarget);
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnCopyEnd);
}
void SceneComponent::CutSelection()
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZStd::vector<AZ::EntityId> entities = GetSelectedItems();
Cut(entities);
}
void SceneComponent::Cut(const AZStd::vector<AZ::EntityId>& selectedItems)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
Copy(selectedItems);
AZStd::unordered_set<AZ::EntityId> deletedItems(selectedItems.begin(), selectedItems.end());
Delete(deletedItems);
}
void SceneComponent::Paste()
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
QPointF pasteCenter = SignalGenericAddPositionUseBegin();
PasteAt(pasteCenter);
SignalGenericAddPositionUseEnd();
}
void SceneComponent::PasteAt(const QPointF& scenePos)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnPasteBegin);
{
QScopedValueRollback pastingRollback(m_isPasting, true);
if (m_graphicsSceneUi)
{
m_graphicsSceneUi->blockSignals(true);
m_graphicsSceneUi->clearSelection();
}
AZ::Vector2 pastePos{ static_cast<float>(scenePos.x()), static_cast<float>(scenePos.y()) };
QClipboard* clipboard = QApplication::clipboard();
// Trying to paste unknown data into our scene.
if (!clipboard->mimeData()->hasFormat(m_copyMimeType.c_str()))
{
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnUnknownPaste, scenePos);
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnPasteEnd);
return;
}
QByteArray byteArray = clipboard->mimeData()->data(m_copyMimeType.c_str());
GraphSerialization serializationSource(byteArray);
DeserializeEntities(scenePos, serializationSource);
if (m_graphicsSceneUi)
{
m_graphicsSceneUi->blockSignals(false);
}
}
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnPasteEnd);
OnSelectionChanged();
ViewRequestBus::Event(m_viewId, &ViewRequests::RefreshView);
}
void SceneComponent::SerializeEntities(const AZStd::unordered_set<AZ::EntityId>& itemIds, GraphSerialization& serializationTarget) const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
GraphData& serializedEntities = serializationTarget.GetGraphData();
GraphUtils::ParseMembersForSerialization(serializationTarget, itemIds);
if (serializedEntities.m_nodes.empty()
&& serializedEntities.m_bookmarkAnchors.empty())
{
return;
}
// Calculate the position of selected items relative to the position from either the context menu mouse point or the scene center
AZ::Vector2 aggregatePos = AZ::Vector2::CreateZero();
// Can't do this with the above listing. Because when nodes get serialized, they may add other nodes to the list.
// So once we are fully added in, we can figure out our positions.
for (AZ::Entity* entity : serializedEntities.m_nodes)
{
QGraphicsItem* graphicsItem = nullptr;
SceneMemberUIRequestBus::EventResult(graphicsItem, entity->GetId(), &SceneMemberUIRequests::GetRootGraphicsItem);
AZ::Vector2 itemPos = AZ::Vector2::CreateZero();
if (graphicsItem)
{
QPointF scenePosition = graphicsItem->scenePos();
itemPos.SetX(aznumeric_cast<float>(scenePosition.x()));
itemPos.SetY(aznumeric_cast<float>(scenePosition.y()));
}
aggregatePos += itemPos;
}
for (AZ::Entity* entity : serializedEntities.m_bookmarkAnchors)
{
QGraphicsItem* graphicsItem = nullptr;
SceneMemberUIRequestBus::EventResult(graphicsItem, entity->GetId(), &SceneMemberUIRequests::GetRootGraphicsItem);
AZ::Vector2 itemPos = AZ::Vector2::CreateZero();
if (graphicsItem)
{
QPointF scenePosition = graphicsItem->scenePos();
itemPos.SetX(aznumeric_cast<float>(scenePosition.x()));
itemPos.SetY(aznumeric_cast<float>(scenePosition.y()));
}
aggregatePos += itemPos;
}
AZ::Vector2 averagePos = aggregatePos / aznumeric_cast<float>(serializedEntities.m_nodes.size() + serializedEntities.m_bookmarkAnchors.size());
serializationTarget.SetAveragePosition(averagePos);
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnEntitiesSerialized, serializationTarget);
}
void SceneComponent::DeserializeEntities(const QPointF& scenePoint, const GraphSerialization& serializationSource)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZ::EntityId groupTarget = FindTopmostGroupAtPoint(scenePoint);
AZ::Vector2 deserializePoint = AZ::Vector2(aznumeric_cast<float>(scenePoint.x()), aznumeric_cast<float>(scenePoint.y()));
const AZ::Vector2& averagePos = serializationSource.GetAveragePosition();
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnEntitiesDeserialized, serializationSource);
const GraphData& pasteSceneData = serializationSource.GetGraphData();
AZStd::unordered_map< PersistentGraphMemberId, PersistentGraphMemberId > persistentGraphMemberRemapping;
AZStd::unordered_set<AZ::EntityId> groupableDeserializedEntities;
for (auto& nodeRef : pasteSceneData.m_nodes)
{
AZStd::unique_ptr<AZ::Entity> entity(nodeRef);
entity->Init();
entity->Activate();
AZ::Vector2 prevNodePos;
GeometryRequestBus::EventResult(prevNodePos, entity->GetId(), &GeometryRequests::GetPosition);
GeometryRequestBus::Event(entity->GetId(), &GeometryRequests::SetPosition, (prevNodePos - averagePos) + deserializePoint);
SceneMemberNotificationBus::Event(entity->GetId(), &SceneMemberNotifications::OnSceneMemberDeserialized, GetEntityId(), serializationSource);
SceneMemberUIRequestBus::Event(entity->GetId(), &SceneMemberUIRequests::SetSelected, true);
if (Add(entity->GetId(), true))
{
entity.release();
AZ::EntityId nodeId = nodeRef->GetId();
PersistentGraphMemberId previousId;
PersistentMemberRequestBus::EventResult(previousId, nodeId, &PersistentMemberRequests::GetPreviousGraphMemberId);
PersistentGraphMemberId newId;
PersistentMemberRequestBus::EventResult(newId, nodeId, &PersistentMemberRequests::GetPersistentGraphMemberId);
persistentGraphMemberRemapping[previousId] = newId;
if (GraphUtils::IsGroupableElement(nodeId))
{
groupableDeserializedEntities.insert(nodeId);
}
}
}
for (auto& bookmarkRef : pasteSceneData.m_bookmarkAnchors)
{
AZStd::unique_ptr<AZ::Entity> entity(bookmarkRef);
entity->Init();
entity->Activate();
AZ::Vector2 prevPos;
GeometryRequestBus::EventResult(prevPos, entity->GetId(), &GeometryRequests::GetPosition);
GeometryRequestBus::Event(entity->GetId(), &GeometryRequests::SetPosition, (prevPos - averagePos) + deserializePoint);
SceneMemberNotificationBus::Event(entity->GetId(), &SceneMemberNotifications::OnSceneMemberDeserialized, GetEntityId(), serializationSource);
SceneMemberUIRequestBus::Event(entity->GetId(), &SceneMemberUIRequests::SetSelected, true);
if (Add(entity->GetId()))
{
entity.release();
AZ::EntityId bookmarkId = bookmarkRef->GetId();
PersistentGraphMemberId previousId;
PersistentMemberRequestBus::EventResult(previousId, bookmarkId, &PersistentMemberRequests::GetPreviousGraphMemberId);
PersistentGraphMemberId newId;
PersistentMemberRequestBus::EventResult(newId, bookmarkId, &PersistentMemberRequests::GetPersistentGraphMemberId);
persistentGraphMemberRemapping[previousId] = newId;
if (GraphUtils::IsGroupableElement(bookmarkId))
{
groupableDeserializedEntities.insert(bookmarkId);
}
}
}
// Now go through and recreate all of the connections.
const AZStd::unordered_multimap<Endpoint, Endpoint>& connectedEndpoints = serializationSource.GetConnectedEndpoints();
for (const auto& mapPair : connectedEndpoints)
{
SlotRequestBus::Event(mapPair.first.GetSlotId(), &SlotRequests::CreateConnectionWithEndpoint, mapPair.second);
}
PersistentIdNotificationBus::Event(GetEditorId(), &PersistentIdNotifications::OnPersistentIdsRemapped, persistentGraphMemberRemapping);
if (groupTarget.IsValid())
{
auto groupableIter = groupableDeserializedEntities.begin();
while (groupableIter != groupableDeserializedEntities.end())
{
// Remove any groupable elements that are apart of another group.
// And just assign everything that is a 'root' element to our new area.
AZ::EntityId groupId;
GroupableSceneMemberRequestBus::EventResult(groupId, (*groupableIter), &GroupableSceneMemberRequests::GetGroupId);
if (groupId.IsValid())
{
groupableIter = groupableDeserializedEntities.erase(groupableIter);
}
else
{
++groupableIter;
}
}
NodeGroupRequestBus::Event(groupTarget, &NodeGroupRequests::AddElementsToGroup, groupableDeserializedEntities);
}
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::PostCreationEvent);
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnEntitiesDeserializationComplete, serializationSource);
}
void SceneComponent::DuplicateSelection()
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZStd::vector<AZ::EntityId> entities = GetSelectedItems();
Duplicate(entities);
}
void SceneComponent::DuplicateSelectionAt(const QPointF& scenePos)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZStd::vector<AZ::EntityId> entities = GetSelectedItems();
DuplicateAt(entities, scenePos);
}
void SceneComponent::Duplicate(const AZStd::vector<AZ::EntityId>& itemIds)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
QPointF duplicateCenter = SignalGenericAddPositionUseBegin();
DuplicateAt(itemIds, duplicateCenter);
SignalGenericAddPositionUseEnd();
}
void SceneComponent::DuplicateAt(const AZStd::vector<AZ::EntityId>& itemIds, const QPointF& scenePos)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnDuplicateBegin);
{
QScopedValueRollback isPastingRollback(m_isPasting, true);
if (m_graphicsSceneUi)
{
m_graphicsSceneUi->blockSignals(true);
m_graphicsSceneUi->clearSelection();
}
GraphSerialization serializationTarget;
SerializeEntities({ itemIds.begin(), itemIds.end() }, serializationTarget);
AZStd::vector<char> buffer;
SerializeToBuffer(serializationTarget, buffer);
GraphSerialization deserializationTarget(QByteArray(buffer.cbegin(), static_cast<int>(buffer.size())));
DeserializeEntities(scenePos, deserializationTarget);
if (m_graphicsSceneUi)
{
m_graphicsSceneUi->blockSignals(false);
}
}
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnDuplicateEnd);
OnSelectionChanged();
ViewRequestBus::Event(m_viewId, &ViewRequests::RefreshView);
}
void SceneComponent::DeleteSelection()
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
if (m_graphicsSceneUi)
{
const QList<QGraphicsItem*> selected(m_graphicsSceneUi->selectedItems());
AZStd::unordered_set<AZ::EntityId> toDelete;
for (QGraphicsItem* item : selected)
{
auto entry = m_itemLookup.find(item);
if (entry != m_itemLookup.end())
{
toDelete.insert(entry->second);
}
}
Delete(toDelete);
}
}
void SceneComponent::Delete(const AZStd::unordered_set<AZ::EntityId>& itemIds)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
if (itemIds.empty())
{
return;
}
// Block the graphics scene from sending selection update events as we remove items.
if (m_graphicsSceneUi)
{
if (m_deleteCount == 0)
{
m_graphicsSceneUi->blockSignals(true);
}
}
// Need to deal with recursive deleting because of Wrapper Nodes
++m_deleteCount;
SceneMemberBuckets sceneMembers;
SieveSceneMembers(itemIds, sceneMembers);
const bool internalConnectionsOnly = false;
auto nodeConnections = GraphUtils::FindConnectionsForNodes(sceneMembers.m_nodes, internalConnectionsOnly);
sceneMembers.m_connections.insert(nodeConnections.begin(), nodeConnections.end());
for (const auto& connection : sceneMembers.m_connections)
{
if (Remove(connection))
{
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnPreConnectionDeleted, connection);
AZ::ComponentApplicationBus::Broadcast(&AZ::ComponentApplicationRequests::DeleteEntity, connection);
}
}
for (const auto& node : sceneMembers.m_nodes)
{
NodeRequestBus::Event(node, &NodeRequests::SignalNodeAboutToBeDeleted);
if (Remove(node))
{
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnPreNodeDeleted, node);
AZ::ComponentApplicationBus::Broadcast(&AZ::ComponentApplicationRequests::DeleteEntity, node);
}
}
for (const auto& bookmarkAnchor : sceneMembers.m_bookmarkAnchors)
{
if (Remove(bookmarkAnchor))
{
AZ::ComponentApplicationBus::Broadcast(&AZ::ComponentApplicationRequests::DeleteEntity, bookmarkAnchor);
}
}
--m_deleteCount;
if (m_deleteCount == 0)
{
if (m_graphicsSceneUi)
{
m_graphicsSceneUi->blockSignals(false);
// Once complete, signal selection is changed
emit m_graphicsSceneUi->selectionChanged();
}
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::PostDeletionEvent);
}
}
void SceneComponent::DeleteGraphData(const GraphData& graphData)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZStd::unordered_set<AZ::EntityId> itemIds;
graphData.CollectItemIds(itemIds);
Delete(itemIds);
}
void SceneComponent::ClearScene()
{
DeleteGraphData(m_graphData);
AZStd::unordered_map<GraphicsEffectId, QGraphicsItem*> removalPair;
auto enumerationCallback = [&removalPair](GraphicsEffectRequests* graphicsInterface) -> bool
{
QGraphicsItem* graphicsItem = graphicsInterface->AsQGraphicsItem();
if (graphicsItem)
{
removalPair[graphicsInterface->GetEffectId()] = graphicsItem;
}
// Enumerate over all handlers
return true;
};
GraphicsEffectRequestBus::EnumerateHandlers(enumerationCallback);
for (auto effectPair : removalPair)
{
DestroyGraphicsItem(effectPair.first, effectPair.second);
}
}
void SceneComponent::SuppressNextContextMenu()
{
if (m_graphicsSceneUi)
{
m_graphicsSceneUi->SuppressNextContextMenu();
}
}
const AZStd::string& SceneComponent::GetCopyMimeType() const
{
return m_copyMimeType;
}
void SceneComponent::SetMimeType(const char* mimeType)
{
m_mimeDelegateSceneHelper.SetMimeType(mimeType);
m_copyMimeType = AZStd::string::format("%s::copy", mimeType);
}
AZStd::vector<AZ::EntityId> SceneComponent::GetEntitiesAt(const AZ::Vector2& position) const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZStd::vector<AZ::EntityId> result;
if (m_graphicsSceneUi)
{
QList<QGraphicsItem*> itemsThere = m_graphicsSceneUi->items(QPointF(position.GetX(), position.GetY()));
for (QGraphicsItem* item : itemsThere)
{
auto entry = m_itemLookup.find(item);
if (entry != m_itemLookup.end() && entry->second != m_grid)
{
result.emplace_back(AZStd::move(entry->second));
}
}
}
return result;
}
AZStd::vector<AZ::EntityId> SceneComponent::GetEntitiesInRect(const QRectF& rect, Qt::ItemSelectionMode mode) const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZStd::vector<AZ::EntityId> result;
if (m_graphicsSceneUi)
{
QList<QGraphicsItem*> itemsThere = m_graphicsSceneUi->items(rect, mode);
for (QGraphicsItem* item : itemsThere)
{
auto entry = m_itemLookup.find(item);
if (entry != m_itemLookup.end() && entry->second != m_grid)
{
result.emplace_back(AZStd::move(entry->second));
}
}
}
return result;
}
AZStd::vector<Endpoint> SceneComponent::GetEndpointsInRect(const QRectF& rect) const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZStd::vector<Endpoint> result;
AZStd::vector<AZ::EntityId> entitiesThere = GetEntitiesInRect(rect, Qt::ItemSelectionMode::IntersectsItemShape);
for (AZ::EntityId nodeId : entitiesThere)
{
if (NodeRequestBus::FindFirstHandler(nodeId) != nullptr)
{
AZStd::vector<AZ::EntityId> slotIds;
NodeRequestBus::EventResult(slotIds, nodeId, &NodeRequestBus::Events::GetSlotIds);
for (AZ::EntityId slotId : slotIds)
{
QPointF point;
SlotUIRequestBus::EventResult(point, slotId, &SlotUIRequestBus::Events::GetConnectionPoint);
if (rect.contains(point))
{
result.emplace_back(Endpoint(nodeId, slotId));
}
}
}
}
AZStd::sort(result.begin(), result.end(), [&rect](Endpoint a, Endpoint b) {
QPointF pointA;
SlotUIRequestBus::EventResult(pointA, a.GetSlotId(), &SlotUIRequestBus::Events::GetConnectionPoint);
QPointF pointB;
SlotUIRequestBus::EventResult(pointB, b.GetSlotId(), &SlotUIRequestBus::Events::GetConnectionPoint);
return (rect.center() - pointA).manhattanLength() < (rect.center() - pointB).manhattanLength();
});
return result;
}
void SceneComponent::RegisterView(const AZ::EntityId& viewId)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
if (m_activateScene)
{
m_activateScene = false;
GraphModelRequestBus::Event(GetEntityId(), &GraphModelRequests::RequestPushPreventUndoStateUpdate);
ActivateItems(m_graphData.m_nodes);
ActivateItems(m_graphData.m_connections);
ActivateItems(m_graphData.m_bookmarkAnchors);
NotifyConnectedSlots();
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnStylesChanged); // Forces activated elements to refresh their visual elements.
GraphModelRequestBus::Event(GetEntityId(), &GraphModelRequests::RequestPopPreventUndoStateUpdate);
}
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnViewRegistered);
if (!m_viewId.IsValid() || m_viewId == viewId)
{
m_viewId = viewId;
EditorId editorId;
ViewRequestBus::EventResult(editorId, viewId, &ViewRequests::GetEditorId);
SetEditorId(editorId);
ViewNotificationBus::Handler::BusConnect(m_viewId);
ViewRequestBus::Event(m_viewId, &ViewRequests::SetViewParams, m_viewParams);
}
else
{
AZ_Error("Scene", false, "Trying to register scene to two different views.");
}
}
void SceneComponent::RemoveView(const AZ::EntityId& viewId)
{
if (m_viewId == viewId)
{
m_editorId = EditorId();
m_viewId.SetInvalid();
ViewNotificationBus::Handler::BusDisconnect();
}
else
{
AZ_Error("Scene", !m_viewId.IsValid(), "Trying to unregister scene from the wrong view.");
}
}
ViewId SceneComponent::GetViewId() const
{
return m_viewId;
}
void SceneComponent::DispatchSceneDropEvent(const AZ::Vector2& scenePos, const QMimeData* mimeData)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
QPointF scenePoint(scenePos.GetX(), scenePos.GetY());
for (const AZ::EntityId& delegateId : m_delegates)
{
bool isInterested;
SceneMimeDelegateHandlerRequestBus::EventResult(isInterested, delegateId, &SceneMimeDelegateHandlerRequests::IsInterestedInMimeData, GetEntityId(), mimeData);
if (isInterested)
{
SceneMimeDelegateHandlerRequestBus::Event(delegateId, &SceneMimeDelegateHandlerRequests::HandleDrop, GetEntityId(), scenePoint, mimeData);
}
}
// Force the focus onto the GraphicsScene after a drop.
AZ::EntityId viewId = GetViewId();
QTimer::singleShot(0, [viewId]()
{
GraphCanvasGraphicsView* graphicsView = nullptr;
ViewRequestBus::EventResult(graphicsView, viewId, &ViewRequests::AsGraphicsView);
if (graphicsView)
{
graphicsView->setFocus(Qt::FocusReason::MouseFocusReason);
}
});
}
bool SceneComponent::AddGraphData(const GraphData& graphData)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
bool success = true;
for (const AZStd::unordered_set<AZ::Entity*>& entitySet : { graphData.m_nodes, graphData.m_bookmarkAnchors, graphData.m_connections })
{
for (AZ::Entity* itemRef : entitySet)
{
if (itemRef->GetState() == AZ::Entity::State::Init)
{
itemRef->Activate();
}
success = Add(itemRef->GetId()) && success;
}
}
return success;
}
void SceneComponent::RemoveGraphData(const GraphData& graphData)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZStd::unordered_set<AZ::EntityId> itemIds;
graphData.CollectItemIds(itemIds);
for (const AZ::EntityId& itemId : itemIds)
{
Remove(itemId);
}
}
void SceneComponent::SetDragSelectionType(DragSelectionType selectionType)
{
m_dragSelectionType = selectionType;
}
void SceneComponent::SignalDragSelectStart()
{
m_isDragSelecting = true;
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnDragSelectStart);
}
void SceneComponent::SignalDragSelectEnd()
{
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnDragSelectEnd);
m_isDragSelecting = false;
}
bool SceneComponent::IsDragSelecting() const
{
return m_isDragSelecting;
}
void SceneComponent::SignalConnectionDragBegin()
{
// Bit of a hack to get the connections to play nicely with some signalling.
if (HasSelectedItems())
{
ClearSelection();
}
else
{
OnSelectionChanged();
}
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnConnectionDragBegin);
m_isDraggingConnection = true;
}
void SceneComponent::SignalConnectionDragEnd()
{
m_isDraggingConnection = false;
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnConnectionDragEnd);
}
bool SceneComponent::IsDraggingConnection() const
{
return m_isDraggingConnection;
}
void SceneComponent::SignalDesplice()
{
CancelNudging();
}
QRectF SceneComponent::GetSelectedSceneBoundingArea() const
{
QRectF boundingRect;
for (const auto& sceneMemberList : { m_graphData.m_nodes, m_graphData.m_bookmarkAnchors })
{
for (const auto& sceneMember : sceneMemberList)
{
QGraphicsItem* sceneItem = nullptr;
VisualRequestBus::EventResult(sceneItem, sceneMember->GetId(), &VisualRequests::AsGraphicsItem);
if (sceneItem && sceneItem->isSelected())
{
if (boundingRect.isEmpty())
{
boundingRect = sceneItem->sceneBoundingRect();
}
else
{
boundingRect |= sceneItem->sceneBoundingRect();
}
}
}
}
return boundingRect;
}
QRectF SceneComponent::GetSceneBoundingArea() const
{
QRectF boundingRect;
for (const auto& sceneMemberList : { m_graphData.m_nodes, m_graphData.m_bookmarkAnchors })
{
for (const auto& sceneMember : sceneMemberList)
{
QGraphicsItem* sceneItem = nullptr;
VisualRequestBus::EventResult(sceneItem, sceneMember->GetId(), &VisualRequests::AsGraphicsItem);
if (sceneItem)
{
if (boundingRect.isEmpty())
{
boundingRect = sceneItem->sceneBoundingRect();
}
else
{
boundingRect |= sceneItem->sceneBoundingRect();
}
}
}
}
return boundingRect;
}
void SceneComponent::SignalLoadStart()
{
m_isLoading = true;
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnGraphLoadBegin);
}
void SceneComponent::SignalLoadEnd()
{
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnGraphLoadComplete);
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::PostOnGraphLoadComplete);
m_isLoading = false;
}
bool SceneComponent::IsLoading() const
{
return m_isLoading;
}
bool SceneComponent::IsPasting() const
{
return m_isPasting;
}
void SceneComponent::RemoveUnusedNodes()
{
AZStd::vector< NodeId > nodeIds = GetNodes();
AZStd::unordered_set< AZ::EntityId > unusedIds;
AZStd::unordered_set< NodeId > wrapperNodes;
for (const NodeId& nodeId : nodeIds)
{
// Going to skip node groups for now.
if (GraphUtils::IsCollapsedNodeGroup(nodeId)
|| GraphUtils::IsNodeGroup(nodeId)
|| GraphUtils::IsComment(nodeId))
{
continue;
}
bool hasConnections = false;
NodeRequestBus::EventResult(hasConnections, nodeId, &NodeRequests::HasConnections);
if (!hasConnections)
{
if (GraphUtils::IsWrapperNode(nodeId))
{
wrapperNodes.insert(nodeId);
}
else
{
unusedIds.insert(nodeId);
}
}
}
for (const NodeId& wrapperNodeId : wrapperNodes)
{
AZStd::vector< NodeId > wrappedNodes;
WrapperNodeRequestBus::EventResult(wrappedNodes, wrapperNodeId, &WrapperNodeRequests::GetWrappedNodeIds);
bool canDelete = true;
for (const NodeId& wrappedNodeId : wrappedNodes)
{
if (unusedIds.count(wrappedNodeId) == 0)
{
canDelete = false;
break;
}
}
if (canDelete)
{
unusedIds.insert(wrapperNodeId);
}
}
{
ScopedGraphUndoBlocker undoBlocker(GetEntityId());
Delete(unusedIds);
GraphModelRequestBus::Event(GetEntityId(), &GraphModelRequests::OnRemoveUnusedNodes);
}
GraphModelRequestBus::Event(GetEntityId(), &GraphModelRequests::RequestUndoPoint);
}
void SceneComponent::HandleProposalDaisyChainWithGroup(const NodeId& startNode, SlotType slotType, ConnectionType connectionType, const QPoint& screenPoint, const QPointF& focusPoint, AZ::EntityId groupTarget)
{
AZ::Vector2 stepAmount = GraphUtils::FindMinorStep(GetEntityId());
Endpoint newEndpoint;
AZ::EntityId connectionId;
AZStd::vector< SlotId > slotIds;
NodeRequestBus::EventResult(slotIds, startNode, &NodeRequests::GetVisibleSlotIds);
for (const SlotId& slotId : slotIds)
{
if (!GraphUtils::IsSlot(slotId, slotType, connectionType))
{
continue;
}
newEndpoint = Endpoint(startNode, slotId);
break;
}
if (newEndpoint.IsValid())
{
AZ::EntityId newConnectionId;
SlotRequestBus::EventResult(newConnectionId, newEndpoint.GetSlotId(), &SlotRequests::DisplayConnection);
if (newConnectionId.IsValid())
{
QPointF connectionPoint;
SlotUIRequestBus::EventResult(connectionPoint, newEndpoint.GetSlotId(), &SlotUIRequests::GetConnectionPoint);
QPointF jut;
SlotUIRequestBus::EventResult(jut, newEndpoint.GetSlotId(), &SlotUIRequests::GetJutDirection);
connectionPoint.setX(connectionPoint.x() + 2.0f * stepAmount.GetX() * jut.x());
// Because the size of the nodes are clamped to a size, they don't get resized until they are rendered.
// This makes doing this sort of fine tuned positioning weird. Since it does it based on the wrong size, then it resizes
// and ruins everything. Going to just hack this for nowt o give it an extra half step if it's going backwards(which is where this case matters)
if (jut.x() < 0)
{
connectionPoint.setX(connectionPoint.x() - stepAmount.GetX() * 0.5f);
}
connectionPoint.setY(connectionPoint.y() + 2.0f * stepAmount.GetY() * jut.y());
// Delta vector we need to move the scene by
QPointF repositioning = connectionPoint - focusPoint;
ViewRequestBus::Event(GetViewId(), &ViewRequests::PanSceneBy, repositioning, AZStd::chrono::milliseconds(250));
ConnectionRequestBus::Event(newConnectionId, &ConnectionRequests::ChainProposalCreation, connectionPoint, screenPoint, groupTarget);
}
}
}
void SceneComponent::StartNudging(const AZStd::unordered_set<AZ::EntityId>& fixedNodes)
{
if (m_enableNudging)
{
m_nudgingController.StartNudging(fixedNodes);
}
}
void SceneComponent::FinalizeNudging()
{
if (m_enableNudging)
{
m_nudgingController.FinalizeNudging();
}
}
void SceneComponent::CancelNudging()
{
if (m_enableNudging)
{
m_nudgingController.CancelNudging();
}
}
AZ::EntityId SceneComponent::FindTopmostGroupAtPoint(QPointF scenePoint)
{
return FindGroupTarget(scenePoint);
}
void SceneComponent::RemoveUnusedElements()
{
{
ScopedGraphUndoBlocker undoBlocker(GetEntityId());
RemoveUnusedNodes();
GraphModelRequestBus::Event(GetEntityId(), &GraphModelRequests::OnRemoveUnusedElements);
}
GraphModelRequestBus::Event(GetEntityId(), &GraphModelRequests::RequestUndoPoint);
}
QPointF SceneComponent::SignalGenericAddPositionUseBegin()
{
m_allowReset = false;
return GetViewCenterScenePoint() + m_genericAddOffset;
}
void SceneComponent::SignalGenericAddPositionUseEnd()
{
AZ::Vector2 minorPitch;
GridRequestBus::EventResult(minorPitch, m_grid, &GridRequests::GetMinorPitch);
// Don't want to shift it diagonally, because we also shift things diagonally when we drag/drop in stuff
// So we'll just move it straight down.
m_genericAddOffset += QPointF(0, minorPitch.GetY() * 2);
m_allowReset = true;
}
bool SceneComponent::AllowContextMenu() const
{
return !IsDragSelecting() && !IsDraggingConnection();
}
bool SceneComponent::OnMousePress(const AZ::EntityId& sourceId, const QGraphicsSceneMouseEvent* event)
{
if (event->button() == Qt::LeftButton && sourceId != m_grid)
{
m_enableSpliceTracking = false;
m_enableNodeDragConnectionSpliceTracking = false;
m_enableNodeDragCouplingTracking = false;
m_enableNodeChainDragConnectionSpliceTracking = false;
m_spliceTarget.SetInvalid();
m_pressedEntity = sourceId;
m_gestureSceneHelper.TrackElement(m_pressedEntity);
GeometryRequestBus::EventResult(m_originalPosition, m_pressedEntity, &GeometryRequests::GetPosition);
}
return false;
}
bool SceneComponent::OnMouseRelease(const AZ::EntityId& /*sourceId*/, const QGraphicsSceneMouseEvent* /*event*/)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
if (m_isDraggingEntity)
{
{
ScopedGraphUndoBlocker undoBlocker(GetEntityId());
for (AZ::EntityId groupableElement : m_draggedGroupableElements)
{
GroupableSceneMemberRequestBus::Event(groupableElement, &GroupableSceneMemberRequests::RemoveFromGroup);
}
if (m_dragTargetGroup.IsValid())
{
NodeGroupRequestBus::Event(m_dragTargetGroup, &NodeGroupRequests::AddElementsToGroup, m_draggedGroupableElements);
const bool growGroupOnly = true;
NodeGroupRequestBus::Event(m_dragTargetGroup, &NodeGroupRequests::ResizeGroupToElements, growGroupOnly);
}
m_dragTargetGroup.SetInvalid();
m_forcedLayerStateSetter.ResetStateSetter();
m_forcedGroupDisplayStateStateSetter.ResetStateSetter();
m_draggedGroupableElements.clear();
m_ignoredDragTargets.clear();
}
// Set the dragging element after the group resize. Otherwise the group will send out a position change, and remove the thing
// it just attempted to position.
m_isDraggingEntity = false;
AZ::Vector2 finalPosition;
GeometryRequestBus::EventResult(finalPosition, m_pressedEntity, &GeometryRequests::GetPosition);
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnSceneMemberDragComplete);
if (m_forceDragReleaseUndo || !finalPosition.IsClose(m_originalPosition))
{
m_forceDragReleaseUndo = false;
GraphModelRequestBus::Event(GetEntityId(), &GraphModelRequests::RequestUndoPoint);
}
}
m_isDraggingEntity = false;
m_dragTargetGroup.SetInvalid();
m_enableSpliceTracking = false;
m_spliceTimer.stop();
m_spliceTarget.SetInvalid();
m_spliceTargetDisplayStateStateSetter.ResetStateSetter();
m_pressedEntityDisplayStateStateSetter.ResetStateSetter();
m_couplingEntityDisplayStateStateSetter.ResetStateSetter();
m_gestureSceneHelper.StopTrack();
m_pressedEntity.SetInvalid();
return false;
}
void SceneComponent::OnPositionChanged(const AZ::EntityId& itemId, const AZ::Vector2& position)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
if (m_pressedEntity.IsValid()
&& itemId == m_pressedEntity)
{
if (!m_isDraggingEntity)
{
m_isDraggingEntity = true;
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnSceneMemberDragBegin);
AssetEditorSettingsRequestBus::EventResult(m_enableNodeDragConnectionSpliceTracking, GetEditorId(), &AssetEditorSettingsRequests::IsDragConnectionSpliceEnabled);
AssetEditorSettingsRequestBus::EventResult(m_enableNodeDragCouplingTracking, GetEditorId(), &AssetEditorSettingsRequests::IsDragNodeCouplingEnabled);
AZStd::vector< AZ::EntityId > selectedEntities = GetSelectedNodes();
// Precache all of the groups so we can filter out elements that belong to them in our final set.
AZStd::unordered_set< AZ::EntityId > selectedGroups;
for (AZ::EntityId selectedId : selectedEntities)
{
if (GraphUtils::IsNodeGroup(selectedId))
{
m_ignoredDragTargets.insert(selectedId);
selectedGroups.insert(selectedId);
}
}
for (AZ::EntityId selectedId : selectedEntities)
{
if (GraphUtils::IsGroupableElement(selectedId) && !GraphUtils::IsNodeWrapped(selectedId))
{
// If you are already grouped. Sanity check if your parent group is being moved as well. If it is, don't do anything.
// Otherwise, remove yourself from that group and insert yourself into the overall list.
AZ::EntityId owningGroup;
GroupableSceneMemberRequestBus::EventResult(owningGroup, selectedId, &GroupableSceneMemberRequests::GetGroupId);
if (owningGroup.IsValid())
{
AZ::EntityId previousGroup;
while (owningGroup.IsValid())
{
if (selectedGroups.find(owningGroup) != selectedGroups.end())
{
break;
}
GroupableSceneMemberRequestBus::EventResult(owningGroup, owningGroup, &GroupableSceneMemberRequests::GetGroupId);
}
if (!owningGroup.IsValid())
{
m_draggedGroupableElements.insert(selectedId);
}
}
else
{
m_draggedGroupableElements.insert(selectedId);
}
}
}
if (GraphUtils::IsConnectableNode(m_pressedEntity) && (m_enableNodeDragConnectionSpliceTracking || m_enableNodeDragCouplingTracking)
|| (GraphUtils::IsNodeGroup(m_pressedEntity) && m_enableNodeDragConnectionSpliceTracking))
{
if (GraphUtils::IsNodeGroup(m_pressedEntity))
{
NodeGroupRequestBus::Event(m_pressedEntity, &NodeGroupRequests::FindGroupedElements, selectedEntities);
}
m_inputCouplingTarget.SetInvalid();
m_outputCouplingTarget.SetInvalid();
m_couplingTarget.SetInvalid();
m_selectedSubGraph.Clear();
SubGraphParsingConfig config;
SubGraphParsingResult subGraphResult = GraphUtils::ParseSceneMembersIntoSubGraphs(selectedEntities, config);
if (subGraphResult.m_subGraphs.size() == 1)
{
m_enableNodeChainDragConnectionSpliceTracking = true;
m_selectedSubGraph = subGraphResult.m_subGraphs.front();
}
else
{
m_enableNodeChainDragConnectionSpliceTracking = false;
}
if (m_enableNodeDragCouplingTracking)
{
if (GraphUtils::IsNodeGroup(m_pressedEntity))
{
m_enableNodeDragCouplingTracking = false;
}
else if (selectedEntities.size() > 1)
{
m_selectedSubGraph.Clear();
SubGraphParsingConfig config2;
config2.m_createNonConnectableSubGraph = true;
SubGraphParsingResult subGraphResult2 = GraphUtils::ParseSceneMembersIntoSubGraphs(selectedEntities, config2);
if (subGraphResult2.m_subGraphs.size() == 1)
{
m_selectedSubGraph = subGraphResult2.m_subGraphs.front();
if (m_selectedSubGraph.m_entryNodes.size() == 1
&& m_selectedSubGraph.m_exitNodes.size() == 1)
{
m_enableNodeDragCouplingTracking = true;
m_inputCouplingTarget = (*m_selectedSubGraph.m_entryNodes.begin());
m_outputCouplingTarget = (*m_selectedSubGraph.m_exitNodes.begin());
}
else
{
for (auto entryNode : m_selectedSubGraph.m_entryNodes)
{
if (entryNode == m_pressedEntity)
{
m_enableNodeDragCouplingTracking = true;
m_inputCouplingTarget = entryNode;
}
}
for (auto entryNode : m_selectedSubGraph.m_exitNodes)
{
if (entryNode == m_pressedEntity)
{
m_enableNodeDragCouplingTracking = true;
m_outputCouplingTarget = entryNode;
}
}
}
}
else
{
m_enableNodeDragCouplingTracking = false;
}
}
else if (selectedEntities.size() == 1)
{
m_enableSpliceTracking = true;
m_inputCouplingTarget = m_pressedEntity;
m_outputCouplingTarget = m_pressedEntity;
}
else
{
m_enableSpliceTracking = false;
m_inputCouplingTarget.SetInvalid();
m_outputCouplingTarget.SetInvalid();
}
}
m_enableSpliceTracking = m_enableNodeChainDragConnectionSpliceTracking || m_enableNodeDragCouplingTracking;
if (m_enableSpliceTracking)
{
m_pressedEntityDisplayStateStateSetter.ResetStateSetter();
StateController<RootGraphicsItemDisplayState>* stateController;
RootGraphicsItemRequestBus::EventResult(stateController, m_pressedEntity, &RootGraphicsItemRequests::GetDisplayStateStateController);
m_pressedEntityDisplayStateStateSetter.AddStateController(stateController);
}
}
GraphCanvasGraphicsView* graphicsView = nullptr;
ViewRequestBus::EventResult(graphicsView, m_viewId, &ViewRequests::AsGraphicsView);
QPointF scenePoint;
if (graphicsView)
{
QPointF cursorPoint = QCursor::pos();
QPointF viewPoint = graphicsView->mapFromGlobal(cursorPoint.toPoint());
scenePoint = graphicsView->mapToScene(viewPoint.toPoint());
DetermineDragGroupTarget(scenePoint);
}
}
}
if (!GraphUtils::IsConnection(itemId))
{
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnNodePositionChanged, itemId, position);
if (m_allowReset)
{
m_genericAddOffset.setX(0);
m_genericAddOffset.setY(0);
}
}
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnSceneMemberPositionChanged, itemId, position);
if (m_graphicsSceneUi)
{
m_graphicsSceneUi->update();
}
}
void SceneComponent::OnEscape()
{
ClearSelection();
}
void SceneComponent::OnViewParamsChanged(const ViewParams& viewParams)
{
m_genericAddOffset.setX(0);
m_genericAddOffset.setY(0);
m_viewParams = viewParams;
}
void SceneComponent::AddDelegate(const AZ::EntityId& delegateId)
{
m_delegates.insert(delegateId);
}
void SceneComponent::RemoveDelegate(const AZ::EntityId& delegateId)
{
m_delegates.erase(delegateId);
}
AZ::u32 SceneComponent::GetNewBookmarkCounter()
{
return ++m_bookmarkCounter;
}
void SceneComponent::OnStylesLoaded()
{
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnStylesChanged);
}
void SceneComponent::OnSettingsChanged()
{
m_gestureSceneHelper.OnSettingsChanged();
AssetEditorSettingsRequestBus::EventResult(m_enableNudging, GetEditorId(), &AssetEditorSettingsRequests::IsNodeNudgingEnabled);
if (!m_enableNudging)
{
m_nudgingController.CancelNudging();
}
}
void SceneComponent::ConfigureAndAddGraphicsEffect(GraphicsEffectInterface* graphicsEffect)
{
graphicsEffect->SetGraphId(GetEntityId());
graphicsEffect->SetEditorId(GetEditorId());
QGraphicsItem* graphicsItem = graphicsEffect->AsQGraphicsItem();
m_graphicsSceneUi->addItem(graphicsItem);
}
void SceneComponent::OnSceneDragEnter(const QMimeData* mimeData)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
m_activeDelegates.clear();
for (const AZ::EntityId& delegateId : m_delegates)
{
bool isInterested = false;
SceneMimeDelegateHandlerRequestBus::EventResult(isInterested, delegateId, &SceneMimeDelegateHandlerRequests::IsInterestedInMimeData, GetEntityId(), mimeData);
if (isInterested)
{
m_activeDelegates.insert(delegateId);
}
}
}
void SceneComponent::OnSceneDragMoveEvent(const QPointF& scenePoint, const QMimeData* mimeData)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
for (const AZ::EntityId& delegateId : m_activeDelegates)
{
SceneMimeDelegateHandlerRequestBus::Event(delegateId, &SceneMimeDelegateHandlerRequests::HandleMove, GetEntityId(), scenePoint, mimeData);
}
}
void SceneComponent::OnSceneDropEvent(const QPointF& scenePoint, const QMimeData* mimeData)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
for (const AZ::EntityId& dropHandler : m_activeDelegates)
{
SceneMimeDelegateHandlerRequestBus::Event(dropHandler, &SceneMimeDelegateHandlerRequests::HandleDrop, GetEntityId(), scenePoint, mimeData);
}
AZ::EntityId viewId = GetViewId();
// Force the focus onto the GraphicsView after a drop.
QTimer::singleShot(0, [viewId]()
{
GraphCanvasGraphicsView* graphicsView = nullptr;
ViewRequestBus::EventResult(graphicsView, viewId, &ViewRequests::AsGraphicsView);
if (graphicsView)
{
graphicsView->setFocus(Qt::FocusReason::MouseFocusReason);
}
});
}
void SceneComponent::OnSceneDragExit(const QMimeData* mimeData)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
for (const AZ::EntityId& dropHandler : m_activeDelegates)
{
SceneMimeDelegateHandlerRequestBus::Event(dropHandler, &SceneMimeDelegateHandlerRequests::HandleLeave, GetEntityId(), mimeData);
}
m_activeDelegates.clear();
}
bool SceneComponent::HasActiveMimeDelegates() const
{
return !m_activeDelegates.empty();
}
template<typename Container>
void SceneComponent::InitItems(const Container& entities) const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
for (const auto& entityRef : entities)
{
AZ::Entity* entity = entityRef;
if (entity)
{
if (entity->GetState() == AZ::Entity::State::Constructed)
{
entity->Init();
}
}
}
}
template<typename Container>
void SceneComponent::ActivateItems(const Container& entities)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
for (const auto& entityRef : entities)
{
AZ::Entity* entity = entityRef;
if (entity)
{
if (entity->GetState() == AZ::Entity::State::Init)
{
entity->Activate();
}
AddSceneMember(entity->GetId());
}
}
}
template<typename Container>
void SceneComponent::DeactivateItems(const Container& entities)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
for (const auto& entityRef : entities)
{
AZ::Entity* entity = entityRef;
if (entity)
{
if (entity->GetState() == AZ::Entity::State::Active)
{
GeometryNotificationBus::MultiHandler::BusDisconnect(entity->GetId());
QGraphicsItem* item = nullptr;
SceneMemberUIRequestBus::EventResult(item, entity->GetId(), &SceneMemberUIRequests::GetRootGraphicsItem);
SceneMemberRequestBus::Event(entity->GetId(), &SceneMemberRequests::ClearScene, GetEntityId());
RemoveItemFromScene(item);
entity->Deactivate();
}
}
}
}
template<typename Container>
void SceneComponent::DestroyItems(const Container& entities) const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
for (auto& entityRef : entities)
{
delete entityRef;
}
}
void SceneComponent::DestroyGraphicsItem(const GraphicsEffectId& effectId, QGraphicsItem* graphicsItem)
{
if (graphicsItem)
{
GraphicsEffectRequestBus::Event(effectId, &GraphicsEffectRequests::OnGraphicsEffectCancelled);
RemoveItemFromScene(graphicsItem);
delete graphicsItem;
}
// Remove the effect id from our active particle list so we can limit their numbers properly
AZStd::remove(m_activeParticles.begin(), m_activeParticles.end(), effectId);
}
void SceneComponent::InitConnections()
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
BuildEndpointMap(m_graphData);
InitItems(m_graphData.m_connections);
}
void SceneComponent::NotifyConnectedSlots()
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
for (auto& connection : m_graphData.m_connections)
{
AZ::Entity* entity = connection;
auto* connectionEntity = entity ? AZ::EntityUtils::FindFirstDerivedComponent<ConnectionComponent>(entity) : nullptr;
if (connectionEntity)
{
SlotRequestBus::Event(connectionEntity->GetSourceEndpoint().GetSlotId(), &SlotRequests::AddConnectionId, connectionEntity->GetEntityId(), connectionEntity->GetTargetEndpoint());
SlotRequestBus::Event(connectionEntity->GetTargetEndpoint().GetSlotId(), &SlotRequests::AddConnectionId, connectionEntity->GetEntityId(), connectionEntity->GetSourceEndpoint());
}
}
}
void SceneComponent::OnSelectionChanged()
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
if((m_isDragSelecting && (m_dragSelectionType != DragSelectionType::Realtime)))
{
// Nothing to do.
return;
}
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnSelectionChanged);
}
void SceneComponent::RegisterSelectionItem(const AZ::EntityId& itemId)
{
QGraphicsItem* selectionItem = nullptr;
SceneMemberUIRequestBus::EventResult(selectionItem, itemId, &SceneMemberUIRequests::GetSelectionItem);
m_itemLookup[selectionItem] = itemId;
}
void SceneComponent::UnregisterSelectionItem(const AZ::EntityId& itemId)
{
QGraphicsItem* selectionItem = nullptr;
SceneMemberUIRequestBus::EventResult(selectionItem, itemId, &SceneMemberUIRequests::GetSelectionItem);
m_itemLookup.erase(selectionItem);
m_hiddenElements.erase(selectionItem);
}
void SceneComponent::AddSceneMember(const AZ::EntityId& sceneMemberId, bool positionItem, const AZ::Vector2& position)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
QGraphicsItem* graphicsItem = nullptr;
SceneMemberUIRequestBus::EventResult(graphicsItem, sceneMemberId, &SceneMemberUIRequests::GetRootGraphicsItem);
if (graphicsItem)
{
if (m_graphicsSceneUi)
{
m_graphicsSceneUi->addItem(graphicsItem);
}
RegisterSelectionItem(sceneMemberId);
if (positionItem)
{
GeometryRequestBus::Event(sceneMemberId, &GeometryRequests::SetPosition, position);
}
SceneMemberRequestBus::Event(sceneMemberId, &SceneMemberRequests::SetScene, GetEntityId());
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnSceneMemberAdded, sceneMemberId);
GeometryNotificationBus::MultiHandler::BusConnect(sceneMemberId);
VisualNotificationBus::MultiHandler::BusConnect(sceneMemberId);
SceneMemberRequestBus::Event(sceneMemberId, &SceneMemberRequests::SignalMemberSetupComplete);
}
}
void SceneComponent::RemoveItemFromScene(QGraphicsItem* graphicsItem)
{
if (graphicsItem)
{
if (m_graphicsSceneUi && graphicsItem->scene() == m_graphicsSceneUi.get())
{
m_graphicsSceneUi->removeItem(graphicsItem);
}
m_hiddenElements.erase(graphicsItem);
}
}
void SceneComponent::SieveSceneMembers(const AZStd::unordered_set<AZ::EntityId>& itemIds, SceneMemberBuckets& sceneMembers) const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
AZStd::unordered_set< AZ::EntityId > wrapperNodes;
for (const auto& node : m_graphData.m_nodes)
{
if (itemIds.find(node->GetId()) != itemIds.end())
{
sceneMembers.m_nodes.insert(node->GetId());
if (GraphUtils::IsWrapperNode(node->GetId()))
{
wrapperNodes.insert(node->GetId());
}
}
}
// Wrapper nodes handle copying/deleting everything internal to themselves.
// So we need to sanitize our filtering to avoid things that are wrapped when the wrapper
// is also copied.
for (const auto& wrapperNode : wrapperNodes)
{
AZStd::vector< AZ::EntityId > wrappedNodes;
WrapperNodeRequestBus::EventResult(wrappedNodes, wrapperNode, &WrapperNodeRequests::GetWrappedNodeIds);
for (const auto& wrappedNode : wrappedNodes)
{
sceneMembers.m_nodes.erase(wrappedNode);
}
}
for (const auto& connection : m_graphData.m_connections)
{
if (itemIds.find(connection->GetId()) != itemIds.end())
{
sceneMembers.m_connections.insert(connection->GetId());
}
}
for (const auto& bookmarkAnchors : m_graphData.m_bookmarkAnchors)
{
if (itemIds.find(bookmarkAnchors->GetId()) != itemIds.end())
{
sceneMembers.m_bookmarkAnchors.insert(bookmarkAnchors->GetId());
}
}
}
QPointF SceneComponent::GetViewCenterScenePoint() const
{
AZ::Vector2 viewCenter(0,0);
ViewId viewId = GetViewId();
ViewRequestBus::EventResult(viewCenter, viewId, &ViewRequests::GetViewSceneCenter);
return QPointF(viewCenter.GetX(), viewCenter.GetY());
}
void SceneComponent::OnDragCursorMove(const QPointF& cursorPoint)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
if (m_enableSpliceTracking)
{
AZStd::unordered_set< AZ::EntityId > intersectedEntities;
AZStd::unordered_map< AZ::EntityId, AZ::EntityId > displayMapping;
for (auto spliceSource : { m_pressedEntity, m_inputCouplingTarget, m_outputCouplingTarget })
{
QGraphicsItem* graphicsItem = nullptr;
SceneMemberUIRequestBus::EventResult(graphicsItem, spliceSource, &SceneMemberUIRequests::GetRootGraphicsItem);
if (graphicsItem)
{
// We'll use the bounding rect to determine visibility.
// But we'll use the cursor position to determine snapping
QRectF boundingRect = graphicsItem->sceneBoundingRect();
AZStd::vector< AZ::EntityId > sceneEntities = GetEntitiesInRect(boundingRect, Qt::ItemSelectionMode::IntersectsItemShape);
for (const AZ::EntityId& entityId : sceneEntities)
{
if (entityId == spliceSource
|| m_selectedSubGraph.m_containedNodes.find(entityId) != m_selectedSubGraph.m_containedNodes.end()
|| m_selectedSubGraph.m_containedConnections.find(entityId) != m_selectedSubGraph.m_containedConnections.end())
{
continue;
}
auto insertResult = intersectedEntities.insert(entityId);
if (insertResult.second)
{
displayMapping[entityId] = spliceSource;
}
}
}
}
if (!intersectedEntities.empty())
{
bool ambiguousNode = false;
AZ::EntityId hoveredNode;
AZStd::vector< AZ::EntityId > ambiguousConnections;
for (const AZ::EntityId& currentEntity : intersectedEntities)
{
if (GraphUtils::IsSpliceableConnection(currentEntity)
&& m_selectedSubGraph.m_containedConnections.find(currentEntity) == m_selectedSubGraph.m_containedConnections.end())
{
ambiguousConnections.push_back(currentEntity);
}
else if (GraphUtils::IsConnectableNode(currentEntity))
{
bool isWrapped = false;
NodeRequestBus::EventResult(isWrapped, currentEntity, &NodeRequests::IsWrapped);
if (isWrapped)
{
AZ::EntityId parentId;
NodeRequestBus::EventResult(parentId, currentEntity, &NodeRequests::GetWrappingNode);
while (parentId.IsValid())
{
if (parentId == m_inputCouplingTarget
|| parentId == m_outputCouplingTarget)
{
break;
}
NodeRequestBus::EventResult(isWrapped, currentEntity, &NodeRequests::IsWrapped);
if (isWrapped)
{
NodeRequestBus::EventResult(parentId, parentId, &NodeRequests::GetWrappingNode);
}
else
{
break;
}
}
if (parentId == m_inputCouplingTarget
|| parentId == m_outputCouplingTarget)
{
continue;
}
}
if (hoveredNode.IsValid())
{
ambiguousNode = true;
}
hoveredNode = currentEntity;
}
}
AZStd::chrono::milliseconds spliceTime(500);
if (m_enableNodeDragCouplingTracking && !ambiguousNode && hoveredNode.IsValid())
{
AZ::EntityId entityTarget = displayMapping[hoveredNode];
if (entityTarget != m_couplingTarget)
{
m_couplingTarget = entityTarget;
StateController<RootGraphicsItemDisplayState>* stateController = nullptr;
RootGraphicsItemRequestBus::EventResult(stateController, entityTarget, &RootGraphicsItemRequests::GetDisplayStateStateController);
m_couplingEntityDisplayStateStateSetter.ResetStateSetter();
m_couplingEntityDisplayStateStateSetter.AddStateController(stateController);
}
InitiateSpliceToNode(hoveredNode);
AssetEditorSettingsRequestBus::EventResult(spliceTime, GetEditorId(), &AssetEditorSettingsRequests::GetDragCouplingTime);
}
else if (m_enableNodeDragConnectionSpliceTracking)
{
m_couplingTarget.SetInvalid();
m_couplingEntityDisplayStateStateSetter.ResetStateSetter();
InitiateSpliceToConnection(ambiguousConnections);
AssetEditorSettingsRequestBus::EventResult(spliceTime, GetEditorId(), &AssetEditorSettingsRequests::GetDragConnectionSpliceTime);
}
else
{
m_spliceTarget.SetInvalid();
m_couplingTarget.SetInvalid();
m_couplingEntityDisplayStateStateSetter.ResetStateSetter();
}
// If we move, no matter what. Restart the timer, so long as we have a valid target.
m_spliceTimer.stop();
if (m_spliceTarget.IsValid())
{
m_spliceTimer.setInterval(aznumeric_cast<int>(spliceTime.count()));
m_spliceTimer.start();
}
}
else
{
m_spliceTarget.SetInvalid();
m_couplingTarget.SetInvalid();
m_couplingEntityDisplayStateStateSetter.ResetStateSetter();
m_spliceTargetDisplayStateStateSetter.ResetStateSetter();
m_pressedEntityDisplayStateStateSetter.ReleaseState();
m_spliceTimer.stop();
}
}
if (!m_draggedGroupableElements.empty())
{
DetermineDragGroupTarget(cursorPoint);
}
}
void SceneComponent::DetermineDragGroupTarget(const QPointF& cursorPoint)
{
AZ::EntityId bestGroup = FindGroupTarget(cursorPoint, m_ignoredDragTargets);
if (bestGroup != m_dragTargetGroup)
{
m_dragTargetGroup = bestGroup;
m_forcedGroupDisplayStateStateSetter.ResetStateSetter();
if (m_dragTargetGroup.IsValid())
{
StateController<RootGraphicsItemDisplayState>* displayStateController = nullptr;
RootGraphicsItemRequestBus::EventResult(displayStateController, m_dragTargetGroup, &RootGraphicsItemRequests::GetDisplayStateStateController);
m_forcedGroupDisplayStateStateSetter.AddStateController(displayStateController);
m_forcedGroupDisplayStateStateSetter.SetState(RootGraphicsItemDisplayState::Inspection);
StateController<AZStd::string>* layerStateController = nullptr;
LayerControllerRequestBus::EventResult(layerStateController, m_dragTargetGroup, &LayerControllerRequests::GetLayerModifierController);
m_forcedLayerStateSetter.AddStateController(layerStateController);
m_forcedLayerStateSetter.SetState("dropTarget");
}
}
}
AZ::EntityId SceneComponent::FindGroupTarget(const QPointF& scenePoint, const AZStd::unordered_set<AZ::EntityId>& ignoreElements)
{
auto entitiesAtPoint = GetEntitiesAt(ConversionUtils::QPointToVector(scenePoint));
AZStd::unordered_set< AZ::EntityId > groupParentChain;
AZ::EntityId bestGroup;
for (auto testEntity : entitiesAtPoint)
{
if (ignoreElements.find(testEntity) != ignoreElements.end())
{
continue;
}
// Only care about groups here. Can ignore anything else for this.
if (GraphUtils::IsNodeGroup(testEntity))
{
bool allowGroup = true;
// Safe guard against trying to drag a parent group into a child and creating an infinite loop.
AZStd::unordered_set<AZ::EntityId> testParentChain;
AZ::EntityId groupedId = testEntity;
while (groupedId.IsValid())
{
GroupableSceneMemberRequests* groupableRequests = GroupableSceneMemberRequestBus::FindFirstHandler(groupedId);
if (groupableRequests)
{
if (ignoreElements.find(groupedId) != ignoreElements.end())
{
allowGroup = false;
break;
}
if (GraphUtils::IsNodeGroup(groupedId))
{
testParentChain.insert(groupedId);
}
groupedId = groupableRequests->GetGroupId();
}
else
{
break;
}
}
if (!allowGroup)
{
continue;
}
////
if (bestGroup.IsValid())
{
// If this group is apart of the previous chain, we can ignore it as we have the more specific group.
if (groupParentChain.find(testEntity) == groupParentChain.end())
{
AZ::EntityId groupedId2 = testEntity;
for (AZ::EntityId testParent : testParentChain)
{
if (GraphUtils::IsNodeGroup(testParent))
{
testParentChain.insert(testParent);
}
// If we discover a more specific version. We can update to that.
if (groupedId2 == bestGroup)
{
bestGroup = testEntity;
groupParentChain = testParentChain;
break;
}
}
// If we have two equally 'valid' groups then we want to just ignore them both as the drop is ambiguous.
if (bestGroup != testEntity)
{
bestGroup.SetInvalid();
break;
}
}
}
else
{
bestGroup = testEntity;
groupParentChain = testParentChain;
}
}
}
return bestGroup;
}
void SceneComponent::OnTrySplice()
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
GraphModelRequestBus::Event(GetEntityId(), &GraphModelRequests::RequestPushPreventUndoStateUpdate);
m_spliceTargetDisplayStateStateSetter.ResetStateSetter();
m_pressedEntityDisplayStateStateSetter.ReleaseState();
m_couplingEntityDisplayStateStateSetter.ReleaseState();
// Make sure we have a valid target for whatever we are trying to 'splice' against.
// Then check the preconditions for the various other tracking elements.
if (m_enableSpliceTracking && m_spliceTarget.IsValid()
&& ( (m_enableNodeDragCouplingTracking && (m_inputCouplingTarget.IsValid() || m_outputCouplingTarget.IsValid()))
|| (m_enableNodeDragConnectionSpliceTracking && m_pressedEntity.IsValid())
|| (m_enableNodeChainDragConnectionSpliceTracking && !m_selectedSubGraph.m_containedNodes.empty())
)
)
{
AnimatedPulseConfiguration pulseConfiguration;
pulseConfiguration.m_durationSec = 0.35f;
pulseConfiguration.m_enableGradient = true;
AZ::EntityId pulseTarget = m_pressedEntity;
if (GraphUtils::IsConnection(m_spliceTarget))
{
if (m_enableNodeChainDragConnectionSpliceTracking)
{
if (GraphUtils::SpliceSubGraphOntoConnection(m_selectedSubGraph, m_spliceTarget))
{
m_forceDragReleaseUndo = true;
pulseConfiguration.m_drawColor = QColor(255, 255, 255);
StartNudging(m_selectedSubGraph.m_containedNodes);
}
else
{
pulseConfiguration.m_drawColor = QColor(255, 0, 0);
}
}
else
{
ConnectionSpliceConfig spliceConfig;
spliceConfig.m_allowOpportunisticConnections = false;
if (GraphUtils::SpliceNodeOntoConnection(m_pressedEntity, m_spliceTarget, spliceConfig))
{
m_forceDragReleaseUndo = true;
pulseConfiguration.m_drawColor = QColor(255, 255, 255);
StartNudging(m_selectedSubGraph.m_containedNodes);
}
else
{
pulseConfiguration.m_drawColor = QColor(255, 0, 0);
}
}
}
else if (GraphUtils::IsNode(m_spliceTarget))
{
pulseTarget = m_couplingTarget;
QRectF targetRect;
QGraphicsItem* targetItem = nullptr;
SceneMemberUIRequestBus::EventResult(targetItem, m_spliceTarget, &SceneMemberUIRequests::GetRootGraphicsItem);
if (targetItem)
{
targetRect = targetItem->sceneBoundingRect();
}
QGraphicsItem* draggingEntity = nullptr;
AZStd::unordered_set< GraphCanvas::ConnectionType > allowableTypes;
if (m_inputCouplingTarget == m_outputCouplingTarget)
{
allowableTypes.insert(GraphCanvas::ConnectionType::CT_Input);
allowableTypes.insert(GraphCanvas::ConnectionType::CT_Output);
SceneMemberUIRequestBus::EventResult(draggingEntity, m_inputCouplingTarget, &SceneMemberUIRequests::GetRootGraphicsItem);
}
else if (m_couplingTarget == m_inputCouplingTarget)
{
allowableTypes.insert(GraphCanvas::ConnectionType::CT_Input);
}
else
{
allowableTypes.insert(GraphCanvas::ConnectionType::CT_Output);
}
SceneMemberUIRequestBus::EventResult(draggingEntity, m_couplingTarget, &SceneMemberUIRequests::GetRootGraphicsItem);
if (draggingEntity && targetItem)
{
QRectF draggingRect = draggingEntity->sceneBoundingRect();
GraphCanvas::ConnectionType allowedType = GraphCanvas::ConnectionType::CT_None;
// Reference point is we are gathering slots from the pressed node.
// So we want to determine which side is offset from, and grabs the nodes from the other side.
if (draggingRect.x() > targetRect.x())
{
allowedType = GraphCanvas::ConnectionType::CT_Input;
}
else
{
allowedType = GraphCanvas::ConnectionType::CT_Output;
}
AZStd::vector< Endpoint > connectableEndpoints;
if (allowableTypes.count(allowedType) > 0)
{
AZStd::vector< AZ::EntityId > slotIds;
NodeRequestBus::EventResult(slotIds, m_couplingTarget, &NodeRequests::GetSlotIds);
for (const AZ::EntityId& testSlotId : slotIds)
{
if (GraphUtils::IsSlotVisible(testSlotId))
{
GraphCanvas::ConnectionType connectionType = GraphCanvas::ConnectionType::CT_Invalid;
SlotRequestBus::EventResult(connectionType, testSlotId, &SlotRequests::GetConnectionType);
if (connectionType == allowedType)
{
connectableEndpoints.emplace_back(m_couplingTarget, testSlotId);
}
}
}
}
CreateConnectionsBetweenConfig config;
config.m_connectionType = CreateConnectionsBetweenConfig::CreationType::SinglePass;
if (!connectableEndpoints.empty() && GraphUtils::CreateConnectionsBetween(connectableEndpoints, m_spliceTarget, config))
{
m_forceDragReleaseUndo = true;
pulseConfiguration.m_drawColor = QColor(255, 255, 255);
}
else
{
pulseConfiguration.m_drawColor = QColor(255, 0, 0);
}
}
}
QGraphicsItem* item = nullptr;
SceneMemberUIRequestBus::EventResult(item, pulseTarget, &SceneMemberUIRequests::GetRootGraphicsItem);
if (item)
{
pulseConfiguration.m_zValue = item->zValue() - 1;
}
CreatePulseAroundSceneMember(pulseTarget, 3, pulseConfiguration);
m_spliceTarget.SetInvalid();
}
GraphModelRequestBus::Event(GetEntityId(), &GraphModelRequests::RequestPopPreventUndoStateUpdate);
}
void SceneComponent::InitiateSpliceToNode(const NodeId& nodeId)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
if (m_spliceTarget != nodeId)
{
m_spliceTargetDisplayStateStateSetter.ResetStateSetter();
m_spliceTarget = nodeId;
if (m_spliceTarget.IsValid())
{
m_couplingEntityDisplayStateStateSetter.SetState(RootGraphicsItemDisplayState::InspectionTransparent);
StateController<RootGraphicsItemDisplayState>* stateController;
RootGraphicsItemRequestBus::EventResult(stateController, m_spliceTarget, &RootGraphicsItemRequests::GetDisplayStateStateController);
m_spliceTargetDisplayStateStateSetter.AddStateController(stateController);
m_spliceTargetDisplayStateStateSetter.SetState(RootGraphicsItemDisplayState::Preview);
}
else
{
m_couplingEntityDisplayStateStateSetter.ReleaseState();
}
}
}
void SceneComponent::InitiateSpliceToConnection(const AZStd::vector<ConnectionId>& connectionIds)
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
m_spliceTarget.SetInvalid();
m_spliceTargetDisplayStateStateSetter.ResetStateSetter();
if (!connectionIds.empty())
{
m_pressedEntityDisplayStateStateSetter.SetState(RootGraphicsItemDisplayState::InspectionTransparent);
}
else if (m_pressedEntityDisplayStateStateSetter.HasState())
{
m_pressedEntityDisplayStateStateSetter.ReleaseState();
}
GraphCanvasGraphicsView* graphicsView = nullptr;
ViewRequestBus::EventResult(graphicsView, m_viewId, &ViewRequests::AsGraphicsView);
QPointF scenePoint;
if (graphicsView)
{
QPointF cursorPoint = QCursor::pos();
QPointF viewPoint = graphicsView->mapFromGlobal(cursorPoint.toPoint());
scenePoint = graphicsView->mapToScene(viewPoint.toPoint());
}
for (const ConnectionId& connectionId : connectionIds)
{
bool containsCursor = false;
QGraphicsItem* spliceTargetItem = nullptr;
SceneMemberUIRequestBus::EventResult(spliceTargetItem, connectionId, &SceneMemberUIRequests::GetRootGraphicsItem);
if (spliceTargetItem)
{
containsCursor = spliceTargetItem->contains(scenePoint);
}
if (containsCursor)
{
m_spliceTarget = connectionId;
StateController<RootGraphicsItemDisplayState>* stateController;
RootGraphicsItemRequestBus::EventResult(stateController, m_spliceTarget, &RootGraphicsItemRequests::GetDisplayStateStateController);
m_spliceTargetDisplayStateStateSetter.AddStateController(stateController);
m_spliceTargetDisplayStateStateSetter.SetState(RootGraphicsItemDisplayState::Preview);
}
}
}
//////////////////////////////
// GraphCanvasGraphicsScenes
//////////////////////////////
GraphCanvasGraphicsScene::GraphCanvasGraphicsScene(SceneComponent& scene)
: m_scene(scene)
, m_suppressContextMenu(false)
{
// Workaround for QTBUG-18021
setItemIndexMethod(QGraphicsScene::NoIndex);
setMinimumRenderSize(2.0f);
connect(this, &QGraphicsScene::selectionChanged, this, [this]() { m_scene.OnSelectionChanged(); });
setSceneRect(-20000, -20000, 40000, 40000);
}
AZ::EntityId GraphCanvasGraphicsScene::GetEntityId() const
{
return m_scene.GetEntityId();
}
void GraphCanvasGraphicsScene::SuppressNextContextMenu()
{
m_suppressContextMenu = true;
}
void GraphCanvasGraphicsScene::keyPressEvent(QKeyEvent* event)
{
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnKeyPressed, event);
QGraphicsScene::keyPressEvent(event);
}
void GraphCanvasGraphicsScene::keyReleaseEvent(QKeyEvent* event)
{
SceneNotificationBus::Event(GetEntityId(), &SceneNotifications::OnKeyReleased, event);
QGraphicsScene::keyPressEvent(event);
}
void GraphCanvasGraphicsScene::contextMenuEvent(QGraphicsSceneContextMenuEvent* contextMenuEvent)
{
if (!m_suppressContextMenu && m_scene.AllowContextMenu())
{
const QPoint& screenPos = contextMenuEvent->screenPos();
const QPointF& scenePos = contextMenuEvent->scenePos();
contextMenuEvent->ignore();
ContextMenuAction::SceneReaction reaction = ContextMenuAction::SceneReaction::Unknown;
// Send the event to all items at this position until one item accepts the event.
for (QGraphicsItem* item : itemsAtPosition(contextMenuEvent->screenPos(), contextMenuEvent->scenePos(), contextMenuEvent->widget()))
{
AZ::EntityId memberId;
auto mapIter = m_scene.m_itemLookup.find(item);
if (mapIter != m_scene.m_itemLookup.end())
{
memberId = mapIter->second;
}
if (!memberId.IsValid())
{
continue;
}
else if (memberId == m_scene.GetGrid())
{
// Scene context menu might add elements to the scene. So we'll want to highlight the group to ensure we communicate
// that the group will be affected by these adds.
m_contextMenuGroupTarget = m_scene.FindGroupTarget(scenePos);
SignalGroupHighlight();
AssetEditorRequestBus::EventResult(reaction, m_scene.GetEditorId(), &AssetEditorRequests::ShowSceneContextMenuWithGroup, screenPos, scenePos, m_contextMenuGroupTarget);
}
else
{
// Want to early out before I do the selection manipulation for the node groups.
// unless it's in the title. Then I treat it like normal.
if (GraphUtils::IsNodeGroup(memberId))
{
bool isInTitle = false;
NodeGroupRequestBus::EventResult(isInTitle, memberId, &NodeGroupRequests::IsInTitle, scenePos);
if (!isInTitle)
{
continue;
}
}
bool isMemberSelected = false;
SceneMemberUIRequestBus::EventResult(isMemberSelected, memberId, &SceneMemberUIRequests::IsSelected);
bool shouldAppendSelection = contextMenuEvent->modifiers().testFlag(Qt::ControlModifier);
// clear the current selection if you are not multi selecting and clicking on an unselected node
if (!isMemberSelected && !shouldAppendSelection)
{
m_scene.ClearSelection();
}
if (!isMemberSelected)
{
SceneMemberUIRequestBus::Event(memberId, &SceneMemberUIRequests::SetSelected, true);
}
contextMenuEvent->accept();
GraphModelRequestBus::Event(GetEntityId(), &GraphModelRequests::RequestPushPreventUndoStateUpdate);
if (GraphUtils::IsNodeGroup(memberId))
{
AssetEditorRequestBus::EventResult(reaction, m_scene.GetEditorId(), &AssetEditorRequests::ShowNodeGroupContextMenu, memberId, screenPos, scenePos);
}
else if (GraphUtils::IsConnection(memberId))
{
// Connection Context Menu might add elements to the scene. So we'll want to highlight the group to ensure we communicate
// that the group will be affected by these adds.
m_contextMenuGroupTarget = m_scene.FindGroupTarget(scenePos);
SignalGroupHighlight();
AssetEditorRequestBus::EventResult(reaction, m_scene.GetEditorId(), &AssetEditorRequests::ShowConnectionContextMenuWithGroup, memberId, screenPos, scenePos, m_contextMenuGroupTarget);
}
else if (GraphUtils::IsBookmarkAnchor(memberId))
{
AssetEditorRequestBus::EventResult(reaction, m_scene.GetEditorId(), &AssetEditorRequests::ShowBookmarkContextMenu, memberId, screenPos, scenePos);
}
else if (GraphUtils::IsComment(memberId))
{
AssetEditorRequestBus::EventResult(reaction, m_scene.GetEditorId(), &AssetEditorRequests::ShowCommentContextMenu, memberId, screenPos, scenePos);
}
else
{
bool isNode = GraphUtils::IsNode(memberId);
bool isCollapsedGroup = GraphUtils::IsCollapsedNodeGroup(memberId);
if (GraphUtils::IsNode(memberId))
{
AZStd::vector< SlotId > slotIds;
NodeRequestBus::EventResult(slotIds, memberId, &NodeRequests::GetSlotIds);
AZ::Vector2 azScenePoint = ConversionUtils::QPointToVector(scenePos);
SlotId targetSlotId;
for (const SlotId& slotId : slotIds)
{
bool isSlotContextMenu = false;
VisualRequestBus::EventResult(isSlotContextMenu, slotId, &VisualRequests::Contains, azScenePoint);
if (isSlotContextMenu)
{
if (GraphUtils::IsSlotVisible(slotId))
{
targetSlotId = slotId;
break;
}
}
}
if (targetSlotId.IsValid())
{
AssetEditorRequestBus::EventResult(reaction, m_scene.GetEditorId(), &AssetEditorRequests::ShowSlotContextMenu, targetSlotId, screenPos, scenePos);
}
}
if (reaction == ContextMenuAction::SceneReaction::Unknown)
{
if (GraphUtils::IsComment(memberId)
|| isNode)
{
AssetEditorRequestBus::EventResult(reaction, m_scene.GetEditorId(), &AssetEditorRequests::ShowNodeContextMenu, memberId, screenPos, scenePos);
}
else if (isCollapsedGroup)
{
AssetEditorRequestBus::EventResult(reaction, m_scene.GetEditorId(), &AssetEditorRequests::ShowCollapsedNodeGroupContextMenu, memberId, screenPos, scenePos);
}
}
}
GraphModelRequestBus::Event(GetEntityId(), &GraphModelRequests::RequestPopPreventUndoStateUpdate);
}
break;
}
if (reaction == ContextMenuAction::SceneReaction::PostUndo)
{
GraphModelRequestBus::Event(GetEntityId(), &GraphModelRequests::RequestUndoPoint);
}
}
else
{
m_suppressContextMenu = false;
}
CleanupHighlight();
}
QList<QGraphicsItem*> GraphCanvasGraphicsScene::itemsAtPosition(const QPoint& screenPos, const QPointF& scenePos, QWidget* widget) const
{
GRAPH_CANVAS_DETAILED_PROFILE_FUNCTION();
QGraphicsView* view = widget ? qobject_cast<QGraphicsView*>(widget->parentWidget()) : nullptr;
if (!view)
{
return items(scenePos, Qt::IntersectsItemShape, Qt::DescendingOrder, QTransform());
}
const QRectF pointRect(QPointF(widget->mapFromGlobal(screenPos)), QSizeF(1, 1));
if (!view->isTransformed())
{
return items(pointRect, Qt::IntersectsItemShape, Qt::DescendingOrder);
}
const QTransform viewTransform = view->viewportTransform();
if (viewTransform.type() <= QTransform::TxScale)
{
return items(viewTransform.inverted().mapRect(pointRect), Qt::IntersectsItemShape,
Qt::DescendingOrder, viewTransform);
}
return items(viewTransform.inverted().map(pointRect), Qt::IntersectsItemShape,
Qt::DescendingOrder, viewTransform);
}
void GraphCanvasGraphicsScene::mousePressEvent(QGraphicsSceneMouseEvent* event)
{
if (event->button() == Qt::RightButton)
{
// IMPORTANT: When the user right-clicks on the scene,
// and there are NO items at the click position, the
// current selection is lost. See documentation:
//
// "If there is no item at the given position on the scene,
// the selection area is reset, any focus item loses its
// input focus, and the event is then ignored."
// http://doc.qt.io/qt-5/qgraphicsscene.html#mousePressEvent
//
// This ISN'T the behavior we want. We want to preserve
// the current selection to allow scene interactions. To get around
// this behavior, we'll accept the event and by-pass its
// default implementation.
event->accept();
return;
}
QGraphicsScene::mousePressEvent(event);
}
void GraphCanvasGraphicsScene::mouseReleaseEvent(QGraphicsSceneMouseEvent* event)
{
m_scene.OnSelectionChanged();
QGraphicsScene::mouseReleaseEvent(event);
m_scene.FinalizeNudging();
}
void GraphCanvasGraphicsScene::mouseMoveEvent(QGraphicsSceneMouseEvent* event)
{
QPointF scenePos = event->scenePos();
QPointF lastScenePos = event->lastScenePos();
// These events seem to fire off regardless of mouse input(so long as mouse is down) which causes weird behavior(broken ctrl+left selection).
// Only process these if there was actual movement.
if (scenePos == lastScenePos)
{
return;
}
QGraphicsScene::mouseMoveEvent(event);
if ((m_scene.m_enableSpliceTracking || m_scene.m_isDraggingEntity) && event->lastPos() != event->pos())
{
m_scene.OnDragCursorMove(scenePos);
}
}
void GraphCanvasGraphicsScene::dragEnterEvent(QGraphicsSceneDragDropEvent * event)
{
QGraphicsScene::dragEnterEvent(event);
m_scene.OnSceneDragEnter(event->mimeData());
if (m_scene.HasActiveMimeDelegates())
{
event->accept();
event->acceptProposedAction();
}
}
void GraphCanvasGraphicsScene::dragLeaveEvent(QGraphicsSceneDragDropEvent* event)
{
QGraphicsScene::dragLeaveEvent(event);
m_scene.OnSceneDragExit(event->mimeData());
}
void GraphCanvasGraphicsScene::dragMoveEvent(QGraphicsSceneDragDropEvent* event)
{
QGraphicsScene::dragMoveEvent(event);
m_scene.OnSceneDragMoveEvent(event->scenePos(), event->mimeData());
if (m_scene.HasActiveMimeDelegates())
{
event->accept();
event->acceptProposedAction();
}
}
void GraphCanvasGraphicsScene::dropEvent(QGraphicsSceneDragDropEvent* event)
{
bool accepted = event->isAccepted();
event->setAccepted(false);
QGraphicsScene::dropEvent(event);
if (!event->isAccepted() && m_scene.HasActiveMimeDelegates())
{
event->accept();
m_scene.OnSceneDropEvent(event->scenePos(), event->mimeData());
}
else
{
event->setAccepted(accepted);
}
}
void GraphCanvasGraphicsScene::SignalGroupHighlight()
{
if (m_contextMenuGroupTarget.IsValid())
{
StateController<RootGraphicsItemDisplayState>* displayStateController = nullptr;
RootGraphicsItemRequestBus::EventResult(displayStateController, m_contextMenuGroupTarget, &RootGraphicsItemRequests::GetDisplayStateStateController);
m_forcedGroupDisplayStateStateSetter.AddStateController(displayStateController);
m_forcedGroupDisplayStateStateSetter.SetState(RootGraphicsItemDisplayState::Inspection);
StateController<AZStd::string>* layerStateController = nullptr;
LayerControllerRequestBus::EventResult(layerStateController, m_contextMenuGroupTarget, &LayerControllerRequests::GetLayerModifierController);
m_forcedLayerStateSetter.AddStateController(layerStateController);
m_forcedLayerStateSetter.SetState("dropTarget");
}
}
void GraphCanvasGraphicsScene::CleanupHighlight()
{
m_contextMenuGroupTarget.SetInvalid();
m_forcedGroupDisplayStateStateSetter.ResetStateSetter();
m_forcedLayerStateSetter.ResetStateSetter();
}
}
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