Item editor implementation

Source/ProjectEleriEditor/Public/ItemEditorWindow.h

@@ -0,0 +1,116 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "AssetRegistry/AssetData.h"
+#include "Types/SlateEnums.h"
+#include "Widgets/SCompoundWidget.h"
+#include "Widgets/Views/SListView.h"
+
+class IDetailsView;
+class ITableRow;
+class SSearchBox;
+class STableViewBase;
+class STextBlock;
+class UItemDataAsset;
+struct FPropertyChangedEvent;
+
+/** One row shown in the item list of the editor window. */
+struct FItemListEntry
+{
+	/** Registry data of the data asset (never loads the asset on its own). */
+	FAssetData AssetData;
+
+	/** Human readable item name (FText source), used as the row label and for sorting. */
+	FString ItemName;
+
+	/** Underlying value of the ItemCategory enum (e.g. Category::Plant), INDEX_NONE if unknown. */
+	int32 CategoryValue = INDEX_NONE;
+
+	/** Lower-cased text used for filtering (name + category + asset + package path). */
+	FString SearchText;
+};
+
+/**
+ * Editor tool window that lets the user type an item name, pick the matching
+ * ItemDataAsset and edit its properties directly on the asset.
+ */
+class SItemEditorWindow : public SCompoundWidget
+{
+public:
+	SLATE_BEGIN_ARGS(SItemEditorWindow) {}
+	SLATE_END_ARGS()
+
+	void Construct(const FArguments& InArgs);
+	virtual ~SItemEditorWindow();
+
+	/** Re-queries the Asset Registry for every UItemDataAsset in the project. */
+	void RefreshAssetList();
+
+private:
+	using FItemEntry = TSharedPtr<FItemListEntry>;
+
+	// Slate callbacks
+	TSharedRef<ITableRow> OnGenerateRow(FItemEntry InItem, const TSharedRef<STableViewBase>& InOwnerTable);
+	void OnSearchTextChanged(const FText& InText);
+	void OnSearchTextCommitted(const FText& InText, ETextCommit::Type InCommitType);
+	void OnItemSelectionChanged(FItemEntry InItem, ESelectInfo::Type InSelectInfo);
+	void OnItemDoubleClicked(FItemEntry InItem);
+	void OnAssetPropertyChanged(const FPropertyChangedEvent& InEvent);
+
+	// Toolbar / button handlers
+	FReply OnRefreshClicked();
+	FReply OnSaveClicked();
+	FReply OnOpenAssetEditorClicked();
+	FReply OnFindInContentBrowserClicked();
+	void OnAutoSaveCheckChanged(ECheckBoxState InState);
+
+	// Category filter
+	void InitCategoryFilter();
+	TSharedRef<SWidget> MakeCategoryFilterWidget();
+	TSharedRef<SWidget> MakeCategoryCheckBox(int32 InCategoryValue, const FText& InLabel);
+	ECheckBoxState IsCategoryChecked(int32 InCategoryValue) const;
+	void OnCategoryToggled(int32 InCategoryValue, ECheckBoxState InState);
+
+	// Helpers
+	void ApplyFilter();
+	void SelectFirstVisibleItem();
+	FItemEntry FindEntryForAsset(const UItemDataAsset* InAsset);
+	UItemDataAsset* LoadAssetForEntry(FItemEntry InItem);
+	UItemDataAsset* GetCurrentAsset() const;
+	void UpdateEntryFromLoadedAsset(FItemEntry InEntry, const UItemDataAsset* InAsset);
+	void SaveCurrentAsset();
+	void SetStatusMessage(const FString& InMessage, bool bIsError = false);
+	void OpenInAssetEditor(UItemDataAsset* InAsset);
+	void ShowInContentBrowser(UItemDataAsset* InAsset);
+
+	FText GetSelectionStatusText() const;
+
+	static FString GetEntryDisplayName(const FItemListEntry& InEntry);
+	static FString BuildEntrySearchText(const FItemListEntry& InEntry);
+	static FString GetTaggedItemName(const FAssetData& InAsset);
+
+	/** All data assets of type UItemDataAsset found in the project (registry only). */
+	TArray<TSharedPtr<FItemListEntry>> ItemEntries;
+
+	/** Subset of ItemEntries currently visible after applying the search filter. */
+	TArray<FItemEntry> FilteredItems;
+
+	/** Ordered category values offered as filter chips (underlying Category enum values). */
+	TArray<int32> CategoryFilterValues;
+
+	/** ItemCategory values that should be shown in the list; empty means show every category. */
+	TSet<int32> SelectedCategoryValues;
+
+	/** The data asset currently being edited. */
+	TWeakObjectPtr<UItemDataAsset> CurrentAsset;
+
+	TSharedPtr<SSearchBox> SearchBox;
+	TSharedPtr<SListView<FItemEntry>> ListView;
+	TSharedPtr<IDetailsView> DetailsView;
+	TSharedPtr<STextBlock> StatusText;
+
+	FText SearchFilterText;
+	bool bAutoSaveOnChange = false;
+};

Source/ProjectEleriEditor/Public/ProjectEleriEditorModule.h

@@ -1,10 +1,20 @@
 #pragma once
+
+#include "CoreMinimal.h"
 #include "Modules/ModuleInterface.h"
-#include "Modules/ModuleManager.h"
 
 class FProjectEleriEditorModule : public IModuleInterface
 {
-    public:
-    virtual void StartupModule() override;
-    virtual void ShutdownModule() override;
-};
+public:
+	virtual void StartupModule() override;
+	virtual void ShutdownModule() override;
+
+	/** Opens (or focuses) the Item Editor window. */
+	void OpenItemEditorTab();
+
+private:
+	void RegisterMenus();
+
+	/** Tab id of the Item Editor window. */
+	static const FName ItemEditorTabName;
+};