mirror of
https://github.com/kevinporetti/UnrealImGui.git
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72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
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// Distributed under the MIT License (MIT) (see accompanying LICENSE file)
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#include "ImGuiPrivatePCH.h"
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#include "ImGuiContextManager.h"
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FImGuiContextProxy& FImGuiContextManager::GetWorldContextProxy(UWorld& World)
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{
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const int32 Index = Utilities::GetWorldContextIndex(World);
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checkf(Index != Utilities::INVALID_CONTEXT_INDEX, TEXT("Couldn't resolve context index for world %s: WorldType = %d"),
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*World.GetName(), World.WorldType);
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#if WITH_EDITOR
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// Make sure that PIE worlds don't try to use editor context.
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checkf(!GEngine->IsEditor() || Index != Utilities::DEFAULT_CONTEXT_INDEX, TEXT("Index for world %s "
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"was resolved to the default context index %d, which in editor is reserved for editor context. PIE worlds "
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"should use values that start from 1. WorldType = %d, NetMode = %d"), *World.GetName(),
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Utilities::DEFAULT_CONTEXT_INDEX, World.WorldType, World.GetNetMode());
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#endif // WITH_EDITOR
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FContextData& Data = FindOrAddContextData(Index);
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// Track worlds to make sure that different worlds don't try to use the same context in the same time.
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if (!Data.World.IsValid())
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{
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Data.World = &World;
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}
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else
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{
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checkf(Data.World == &World, TEXT("Two different worlds, %s and %s, resolved to the same world context index %d."),
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*Data.World->GetName(), *World.GetName(), Index);
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}
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return Data.ContextProxy;
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}
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void FImGuiContextManager::Tick(float DeltaSeconds)
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{
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FContextData* Data = Contexts.Find(1);
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if (!Data || !Data->World.IsValid())
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{
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return;
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}
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for (auto& Entry : Contexts)
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{
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FImGuiContextProxy& ContextProxy = Entry.Value.ContextProxy;
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ContextProxy.SetAsCurrent();
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// Tick context proxy to end the old frame and starts a new one.
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ContextProxy.Tick(DeltaSeconds);
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}
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}
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FImGuiContextManager::FContextData& FImGuiContextManager::FindOrAddContextData(int32 Index)
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{
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FContextData* Data = Contexts.Find(Index);
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if (!Data)
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{
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Data = &Contexts.Add(Index);
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if (!Data->ContextProxy.OnDraw().IsBoundToObject(&ImGuiDemo))
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{
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Data->ContextProxy.OnDraw().AddRaw(&ImGuiDemo, &FImGuiDemo::DrawControls);
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}
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}
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return *Data;
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}
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