Initial commit

.gitignore

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+# Visual Studio 2015 user specific files
+.vs/
+.idea/
+
+# Compiled Object files
+*.slo
+*.lo
+*.o
+*.obj
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Compiled Dynamic libraries
+*.so
+*.dylib
+*.dll
+
+# Fortran module files
+*.mod
+
+# Compiled Static libraries
+*.lai
+*.la
+*.a
+*.lib
+
+# Executables
+*.exe
+*.out
+*.app
+*.ipa
+
+# These project files can be generated by the engine
+*.xcodeproj
+*.xcworkspace
+*.sln
+*.suo
+*.opensdf
+*.sdf
+*.VC.db
+*.VC.opendb
+
+# Precompiled Assets
+SourceArt/**/*.png
+SourceArt/**/*.tga
+
+# Binary Files
+Binaries/*
+Plugins/*/Binaries/*
+
+# Builds
+Build/*
+
+# Whitelist PakBlacklist-<BuildConfiguration>.txt files
+!Build/*/
+Build/*/**
+!Build/*/PakBlacklist*.txt
+
+# Don't ignore icon files in Build
+!Build/**/*.ico
+
+# Built data for maps
+*_BuiltData.uasset
+
+# Configuration files generated by the Editor
+Saved/*
+
+# Compiled source files for the engine to use
+Intermediate/*
+Plugins/*/Intermediate/*
+
+# Cache files for the editor to use
+DerivedDataCache/*
+*.user

Config/DefaultEngine.ini

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+
+
+[/Script/EngineSettings.GameMapsSettings]
+GameDefaultMap=/Game/Maps/L_NiagaraDemo.L_NiagaraDemo
+
+
+EditorStartupMap=/Game/Maps/L_NiagaraDemo.L_NiagaraDemo
+
+[/Script/HardwareTargeting.HardwareTargetingSettings]
+TargetedHardwareClass=Desktop
+AppliedTargetedHardwareClass=Desktop
+DefaultGraphicsPerformance=Maximum
+AppliedDefaultGraphicsPerformance=Maximum
+
+[/Script/Engine.Engine]
++ActiveGameNameRedirects=(OldGameName="TP_BlankBP",NewGameName="/Script/NiagaraUI")
++ActiveGameNameRedirects=(OldGameName="/Script/TP_BlankBP",NewGameName="/Script/NiagaraUI")
+
+[/Script/Engine.UserInterfaceSettings]
+RenderFocusRule=NavigationOnly
+HardwareCursors=()
+SoftwareCursors=((Default, /Game/Blueprints/Widgets/WB_Cursor.WB_Cursor_C))
+ApplicationScale=1.000000
+UIScaleRule=ShortestSide
+CustomScalingRuleClass=None
+UIScaleCurve=(EditorCurveData=(Keys=((Time=480.000000,Value=0.444000),(Time=720.000000,Value=0.666000),(Time=1080.000000,Value=1.000000),(Time=8640.000000,Value=8.000000)),DefaultValue=340282346638528859811704183484516925440.000000,PreInfinityExtrap=RCCE_Constant,PostInfinityExtrap=RCCE_Constant),ExternalCurve=None)
+bAllowHighDPIInGameMode=False
+DesignScreenSize=(X=1920,Y=1080)
+bLoadWidgetsOnDedicatedServer=True
+
+[/Script/AndroidRuntimeSettings.AndroidRuntimeSettings]
+bPackageDataInsideApk=True
+
+[/Script/LuminRuntimeSettings.LuminRuntimeSettings]
+IconModelPath=(Path="")
+IconPortalPath=(Path="")
+

Config/DefaultGame.ini

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+
+
+[/Script/EngineSettings.GeneralProjectSettings]
+ProjectID=1471BD1F4F0189ED70E3EBA73914E154
+CopyrightNotice="Copyright (c) 2021 Michal Smoleň "
+LicensingTerms=MIT License
+ProjectName=Niagara UI Demo
+Description=Demo project for the Niagara UI Plugin
+
+[StartupActions]
+bAddPacks=True
+InsertPack=(PackSource="StarterContent.upack",PackName="StarterContent")
+
+[/Script/UnrealEd.ProjectPackagingSettings]
+bSkipEditorContent=True
+

Config/DefaultInput.ini

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+
+
+[/Script/Engine.InputSettings]
+DefaultViewportMouseLockMode=LockAlways
+

LICENSE.txt

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+MIT License
+
+Copyright (c) 2021 Michal Smoleň
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
+OR OTHER DEALINGS IN THE SOFTWARE.

NiagaraUI.uproject

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+{
+	"FileVersion": 3,
+	"EngineAssociation": "4.26",
+	"Category": "",
+	"Description": "",
+	"Modules": [
+		{
+			"Name": "NiagaraUI",
+			"Type": "Runtime",
+			"LoadingPhase": "Default",
+			"AdditionalDependencies": [
+				"Engine"
+			]
+		}
+	]
+}

Plugins/NiagaraUIRenderer/Config/FilterPlugin.ini

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+[FilterPlugin]
+; This section lists additional files which will be packaged along with your plugin. Paths should be listed relative to the root plugin directory, and
+; may include "...", "*", and "?" wildcards to match directories, files, and individual characters respectively.
+;
+; Examples:
+;    /README.txt
+;    /Extras/...
+;    /Binaries/ThirdParty/*.dll

Plugins/NiagaraUIRenderer/Source/NiagaraUIRenderer/NiagaraUIRenderer.Build.cs

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+// Copyright Epic Games, Inc. All Rights Reserved.
+
+using UnrealBuildTool;
+
+public class NiagaraUIRenderer : ModuleRules
+{
+	public NiagaraUIRenderer(ReadOnlyTargetRules Target) : base(Target)
+	{
+		PCHUsage = ModuleRules.PCHUsageMode.UseExplicitOrSharedPCHs;
+
+		PublicIncludePaths.AddRange(
+			new string[] {
+				// ... add public include paths required here ...
+			}
+			);
+
+
+		PrivateIncludePaths.AddRange(
+			new string[] {
+				// ... add other private include paths required here ...
+			}
+			);
+
+
+		PublicDependencyModuleNames.AddRange(
+			new string[]
+			{
+				"Core",
+				"UMG",
+				// ... add other public dependencies that you statically link with here ...
+			}
+			);
+
+
+		PrivateDependencyModuleNames.AddRange(
+			new string[]
+			{
+				"CoreUObject",
+				"Engine",
+				"Slate",
+				"SlateCore",
+				"Niagara",
+				// ... add private dependencies that you statically link with here ...	
+			}
+			);
+
+
+		DynamicallyLoadedModuleNames.AddRange(
+			new string[]
+			{
+				// ... add any modules that your module loads dynamically here ...
+			}
+			);
+	}
+}

Plugins/NiagaraUIRenderer/Source/NiagaraUIRenderer/Private/NiagaraSystemWidget.cpp

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+// Fill out your copyright notice in the Description page of Project Settings.
+
+
+#include "NiagaraSystemWidget.h"
+#include "SNiagaraUISystemWidget.h"
+#include "Materials/MaterialInterface.h"
+#include "NiagaraUIActor.h"
+#include "NiagaraUIComponent.h"
+
+TSharedRef<SWidget> UNiagaraSystemWidget::RebuildWidget()
+{
+	niagaraSlateWidget = SNew(SNiagaraUISystemWidget);
+
+	InitializeNiagaraUI();
+
+	return niagaraSlateWidget.ToSharedRef();
+}
+
+void UNiagaraSystemWidget::SynchronizeProperties()
+{
+	Super::SynchronizeProperties();
+
+	if (!niagaraSlateWidget.IsValid())
+	{
+		return;
+	}
+
+	if (!NiagaraActor || !NiagaraComponent)
+		InitializeNiagaraUI();
+
+}
+
+void UNiagaraSystemWidget::ReleaseSlateResources(bool bReleaseChildren)
+{
+	Super::ReleaseSlateResources(bReleaseChildren);
+
+	niagaraSlateWidget.Reset();
+
+	if (NiagaraActor)
+		NiagaraActor->Destroy();
+}
+
+#if WITH_EDITOR
+const FText UNiagaraSystemWidget::GetPaletteCategory()
+{
+	return NSLOCTEXT("NiagaraUIRenderer", "Palette Category", "Niagara");
+}
+
+void UNiagaraSystemWidget::PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent)
+{
+	Super::PostEditChangeProperty(PropertyChangedEvent);
+
+	InitializeNiagaraUI();
+}
+#endif
+
+void UNiagaraSystemWidget::InitializeNiagaraUI()
+{
+	if (UWorld* World = GetWorld())
+	{
+		if (!World->PersistentLevel)
+			return;
+
+
+		if (!NiagaraActor)
+		{
+			FActorSpawnParameters spawnParams;
+			spawnParams.SpawnCollisionHandlingOverride = ESpawnActorCollisionHandlingMethod::AlwaysSpawn;
+			NiagaraActor = World->SpawnActor<ANiagaraUIActor>(FVector::ZeroVector, FRotator::ZeroRotator, spawnParams);
+		}
+
+		NiagaraComponent = NiagaraActor->SpawnNewNiagaraUIComponent(NiagaraSystemReference, AutoActivate, ShowDebugSystemInWorld);
+
+		niagaraSlateWidget->SetNiagaraComponentReference(NiagaraComponent, FNiagaraWidgetProperties(&MaterialRemapList, AutoActivate, ShowDebugSystemInWorld, FakeDepthScale, FakeDepthScaleDistance));
+	}
+}
+
+void UNiagaraSystemWidget::ActivateSystem(bool Reset)
+{
+	if (NiagaraComponent)
+		NiagaraComponent->Activate(Reset);
+}
+
+void UNiagaraSystemWidget::DeactivateSystem()
+{
+	if (NiagaraComponent)
+		NiagaraComponent->Deactivate();
+}
+
+UNiagaraUIComponent* UNiagaraSystemWidget::GetNiagaraComponent()
+{
+	return NiagaraComponent;
+}

Plugins/NiagaraUIRenderer/Source/NiagaraUIRenderer/Private/NiagaraUIActor.cpp

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+// Fill out your copyright notice in the Description page of Project Settings.
+
+
+#include "NiagaraUIActor.h"
+#include "NiagaraUIComponent.h"
+#include "Components/SceneComponent.h"
+
+PRAGMA_DISABLE_OPTIMIZATION
+
+ANiagaraUIActor::ANiagaraUIActor()
+{
+	if (!RootComponent)
+		RootComponent = CreateDefaultSubobject<USceneComponent>(USceneComponent::GetDefaultSceneRootVariableName());
+}
+
+UNiagaraUIComponent* ANiagaraUIActor::SpawnNewNiagaraUIComponent(UNiagaraSystem* NiagaraSystemTemplate, bool AutoActivate, bool ShowDebugSystem)
+{
+	UNiagaraUIComponent* newComponent = NewObject<UNiagaraUIComponent>(this);
+
+	newComponent->SetupAttachment(RootComponent);
+	newComponent->SetAutoActivate(AutoActivate);
+	newComponent->SetHiddenInGame(!ShowDebugSystem);
+	newComponent->RegisterComponent();
+	newComponent->SetAsset(NiagaraSystemTemplate);
+	newComponent->SetAutoDestroy(false);
+
+	return newComponent;
+}
+PRAGMA_ENABLE_OPTIMIZATION