136 lines
5.2 KiB
C++
136 lines
5.2 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "Engine/DataTable.h"
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#include "Kismet2/ListenerManager.h"
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#include "Widgets/SWidget.h"
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#include "Framework/Commands/UIAction.h"
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#include "AssetData.h"
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struct FDataTableEditorColumnHeaderData
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{
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/** Unique ID used to identify this column */
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FName ColumnId;
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/** Display name of this column */
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FText DisplayName;
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/** The calculated width of this column taking into account the cell data for each row */
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float DesiredColumnWidth;
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/** The FProperty for the variable in this column */
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const FProperty* Property;
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};
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struct FDataTableEditorRowListViewData
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{
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/** Unique ID used to identify this row */
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FName RowId;
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/** Display name of this row */
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FText DisplayName;
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/** The calculated height of this row taking into account the cell data for each column */
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float DesiredRowHeight;
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/** Insertion number of the row */
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uint32 RowNum;
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/** Array corresponding to each cell in this row */
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TArray<FText> CellData;
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};
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typedef TSharedPtr<FDataTableEditorColumnHeaderData> FDataTableEditorColumnHeaderDataPtr;
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typedef TSharedPtr<FDataTableEditorRowListViewData> FDataTableEditorRowListViewDataPtr;
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enum class ERowInsertionPosition
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{
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Above,
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Below,
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Bottom,
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};
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struct UNREALED_API FDataTableEditorUtils
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{
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enum class EDataTableChangeInfo
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{
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/** The data corresponding to a single row has been changed */
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RowData,
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/** The data corresponding to the entire list of rows has been changed */
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RowList,
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};
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enum class ERowMoveDirection
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{
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Up,
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Down,
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};
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class FDataTableEditorManager: public FListenerManager<UDataTable, EDataTableChangeInfo>
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{
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FDataTableEditorManager() {}
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public:
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UNREALED_API static FDataTableEditorManager& Get();
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class UNREALED_API ListenerType: public InnerListenerType<FDataTableEditorManager>
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{
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public:
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virtual void SelectionChange(const UDataTable* DataTable, FName RowName) {}
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};
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};
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typedef FDataTableEditorManager::ListenerType INotifyOnDataTableChanged;
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static bool RemoveRow(UDataTable* DataTable, FName Name);
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static uint8* AddRow(UDataTable* DataTable, FName RowName);
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static uint8* DuplicateRow(UDataTable* DataTable, FName SourceRowName, FName RowName);
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static bool RenameRow(UDataTable* DataTable, FName OldName, FName NewName);
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static bool MoveRow(UDataTable* DataTable, FName RowName, ERowMoveDirection Direction, int32 NumRowsToMoveBy = 1);
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static bool SelectRow(const UDataTable* DataTable, FName RowName);
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static bool DiffersFromDefault(UDataTable* DataTable, FName RowName);
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static bool ResetToDefault(UDataTable* DataTable, FName RowName);
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static uint8* AddRowAboveOrBelowSelection(UDataTable* DataTable, const FName& RowName, const FName& NewRowName, ERowInsertionPosition InsertPosition);
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static void BroadcastPreChange(UDataTable* DataTable, EDataTableChangeInfo Info);
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static void BroadcastPostChange(UDataTable* DataTable, EDataTableChangeInfo Info);
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/** Reads a data table and parses out editable copies of rows and columns */
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static void CacheDataTableForEditing(const UDataTable* DataTable, TArray<FDataTableEditorColumnHeaderDataPtr>& OutAvailableColumns, TArray<FDataTableEditorRowListViewDataPtr>& OutAvailableRows);
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/** Generic version that works with any datatable-like structure */
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static void CacheDataForEditing(const UScriptStruct* RowStruct, const TMap<FName, uint8*>& RowMap, TArray<FDataTableEditorColumnHeaderDataPtr>& OutAvailableColumns, TArray<FDataTableEditorRowListViewDataPtr>& OutAvailableRows);
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/** Returns all script structs that can be used as a data table row. This only includes loaded ones */
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static TArray<UScriptStruct*> GetPossibleStructs();
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/** Fills in an array with all possible DataTable structs, unloaded and loaded */
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static void GetPossibleStructAssetData(TArray<FAssetData>& StructAssets);
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/** Utility function which verifies that the specified struct type is viable for data tables */
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static bool IsValidTableStruct(const UScriptStruct* Struct);
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/** Add a UI action for search for references, useful for customizations */
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static void AddSearchForReferencesContextMenu(class FDetailWidgetRow& RowNameDetailWidget, FExecuteAction SearchForReferencesAction);
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/** Short description for a data or curve handle */
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static FText GetHandleShortDescription(const UObject* TableAsset, FName RowName);
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/** Tooltip text for the data table row type */
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static FText GetRowTypeInfoTooltipText(FDataTableEditorColumnHeaderDataPtr ColumnHeaderDataPtr);
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/** Doc excerpt name for the data table row type */
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static FString GetRowTypeTooltipDocExcerptName(FDataTableEditorColumnHeaderDataPtr ColumnHeaderDataPtr);
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/** Link to variable type doc */
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static const FString VariableTypesTooltipDocLink;
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/** Delegate called when a data table struct is selected */
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DECLARE_DELEGATE_OneParam(FOnDataTableStructSelected, UScriptStruct*);
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/** Creates a combo box that allows selecting from the list of possible row structures */
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static TSharedRef<SWidget> MakeRowStructureComboBox(FOnDataTableStructSelected OnSelected);
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};
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