ReshadePluginsCore/libs/UEngine/UETools.hpp

#pragma once
#include "UMG_classes.hpp"
#include <spdlog/spdlog.h>
#include <unordered_map>
#include <atomic>

inline std::atomic_bool g_Console_Enabled { false };

namespace SDK {
	class UEngine;
	class UObject;
	class UWorld;
	class UWidget;
	class APawn;
	class UGameplayStatics;
	class UConsole;
	class UInputSettings;
	class UKismetStringLibrary;
	class UGameInstance;
	class ULocalPlayer;
	class APlayerController;
}

struct WidgetTrackInfo {
	std::string ClassName;
	std::string RootWidgetClass;
	std::string OuterClass;
	bool WasInViewport = false;
	int ConstructCount = 0;
	int DestructCount = 0;
	std::chrono::steady_clock::time_point FirstSeen;
};
static std::unordered_map<std::string, WidgetTrackInfo> g_WidgetTracker;

/**
 * @brief Gets the current game resolution (not native display) and aspect ratio.
 * @param outWidth screen width.
 * @param outHeight screen height.
 * @param outAspectRatio aspect ratio computed.
 */
void GetResolution(int& outWidth, int& outHeight, float& outAspectRatio);

// Unreal Engine functions
/**
 * @brief Gets the current player Pawn from the world.
 * @param world Optional UWorld pointer.
 * @return Player Pawn or nullptr.
 */
SDK::APawn* GetPawnFromWorld(SDK::UWorld* world = nullptr);

/**
 * @brief Reactivate the development console.
 * @param logger spdlog.
 */
void ReactivateDevConsole(std::shared_ptr<spdlog::logger> logger);

/**
 * @brief Reposition from left a widget that only displays at left and nothing at right
 * @param Widget UUserWdget to offset.
 * @param offset left offset to apply.
 * @param Alignment widget aligment (0.5, 0.5) is centered for eg.
 */
void ApplyPositionOffset(SDK::UUserWidget* Widget, float offset, SDK::FVector2D Alignment);

float ApplyOffsetsSmart(SDK::UWidget* Widget, float Left, float Right, int MaxDepth);

/**
 * @brief Apply offsets recursively to UVCanvasPanelSlot.
 * @param widget UUserWidget* pointer.
 * @param left offset.
 * @param right offset.
 * @param ExcludeObjects excluded objects in depth check
 * @param ExcludeClass excluded class widgets in depth check
 */
void ApplyOffsetsRecursive(SDK::UWidget* widget, float left, float right = 0,
						   const std::vector<SDK::UObject*>& ExcludeObjects = {}, 
						   const std::vector<std::string>& ExcludeClass = {}, int MaxDepth = INT_MAX);

/**
 * @brief Apply offsets recursively to Overlay.
 * @param widget UUserWidget* pointer.
 * @param Offset (left and right offsets).
 * @param alignment widget (left, right, center, fill ...)
 * @param ExcludeNames excluded class widgets in depth check
 * @param MaxDepth Max depth to go through root component
 */
void ApplyOverlayOffsetRecursive(SDK::UWidget* Widget, float left, float right, SDK::EHorizontalAlignment alignment,
								 const std::vector<std::string>& ExcludeNames = {}, int MaxDepth = INT_MAX);

/**
 * @brief Apply transform to a widget.
 * @param Widget UWidget* pointer.
 * @param OffsetX (left offset).
 * @param OffsetY (top offset).
 */
void ApplyTransformOffset(SDK::UWidget* Widget, float OffsetX, float OffsetY = 0);

void FindAndApplyCanvasRecursive(SDK::UWidget* widget, float offset, int MaxDepth = INT_MAX, int currentDepth = 0);

/**
 * @brief Tracks potential widgets candidates for HUD & UI at construction
 * @param widget UUserWidget* pointer.
 */
void TrackWidgetConstruct(SDK::UUserWidget* widget);

/**
 * @brief Tracks potential widgets candidates for HUD & UI at destruction
 * @param widget UUserWidget* pointer.
 */
void TrackWidgetDestruct(SDK::UUserWidget* widget);

/**
 * @brief Dump and log previously searched UI & HUD wisgets
 * @param logger the log object.
 */
void DumpUIAnalysis(std::shared_ptr<spdlog::logger> logger);

/**
 * @brief Clear previously tracked widgets
 */
void ClearWidgetTracking();

/**
 * @brief Dump all widgets
 * @param Widget a UWidget instance to browse
 * @param Depth the depth to start from
 * @param MaxDepth the maximal depth to reach
 */
void DumpWidgetRecursive(SDK::UWidget* Widget, int Depth = 0, int MaxDepth = 2);