117 lines
3.7 KiB
C++
117 lines
3.7 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "Widgets/SCompoundWidget.h"
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class ITableRow;
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class STableViewBase;
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class UEdGraphNode;
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namespace ESelectInfo { enum Type : int; }
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namespace ETextCommit { enum Type : int; }
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template <typename ItemType> class STreeView;
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/** Item that matched the search results */
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class FFindInConversationResult
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{
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public:
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/** Create a root (or only text) result */
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FFindInConversationResult(const FString& InValue);
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/** Create a BT node result */
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FFindInConversationResult(const FString& InValue, TSharedPtr<FFindInConversationResult>& InParent, UEdGraphNode* InNode);
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/** Called when user clicks on the search item */
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FReply OnClick(TWeakPtr<class FConversationEditor> ConversationEditor, TSharedPtr<FFindInConversationResult> Root);
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/** Create an icon to represent the result */
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TSharedRef<SWidget> CreateIcon() const;
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/** Gets the comment on this node if any */
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FString GetCommentText() const;
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/** Gets the node type */
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FString GetNodeTypeText() const;
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/** Highlights conversation graph nodes */
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void SetNodeHighlight(bool bHighlight);
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/** Any children listed under this conversation node */
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TArray< TSharedPtr<FFindInConversationResult> > Children;
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/** The string value for this result */
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FString Value;
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/** The graph node that this search result refers to */
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TWeakObjectPtr<UEdGraphNode> GraphNode;
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/** Search result parent */
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TWeakPtr<FFindInConversationResult> Parent;
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};
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/** Widget for searching for (BT nodes) across focused Conversation */
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class SFindInConversation : public SCompoundWidget
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{
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public:
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SLATE_BEGIN_ARGS(SFindInConversation){}
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SLATE_END_ARGS()
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void Construct(const FArguments& InArgs, TSharedPtr<class FConversationEditor> InConversationEditor);
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/** Focuses this widget's search box */
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void FocusForUse();
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private:
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typedef TSharedPtr<FFindInConversationResult> FSearchResult;
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typedef STreeView<FSearchResult> STreeViewType;
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/** Called when user changes the text they are searching for */
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void OnSearchTextChanged(const FText& Text);
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/** Called when user commits text */
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void OnSearchTextCommitted(const FText& Text, ETextCommit::Type CommitType);
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/** Get the children of a row */
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void OnGetChildren(FSearchResult InItem, TArray<FSearchResult>& OutChildren);
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/** Called when user clicks on a new result */
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void OnTreeSelectionChanged(FSearchResult Item, ESelectInfo::Type SelectInfo);
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/** Called when a new row is being generated */
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TSharedRef<ITableRow> OnGenerateRow(FSearchResult InItem, const TSharedRef<STableViewBase>& OwnerTable);
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/** Begins the search based on the SearchValue */
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void InitiateSearch();
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/** Find any results that contain all of the tokens */
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void MatchTokens(const TArray<FString>& Tokens);
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/** Find if child contains all of the tokens and add a result accordingly */
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void MatchTokensInChild(const TArray<FString>& Tokens, UEdGraphNode* Child, FSearchResult ParentNode);
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/** Determines if a string matches the search tokens */
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static bool StringMatchesSearchTokens(const TArray<FString>& Tokens, const FString& ComparisonString);
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private:
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/** Pointer back to the behavior tree editor that owns us */
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TWeakPtr<class FConversationEditor> ConversationEditorPtr;
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/** The tree view displays the results */
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TSharedPtr<STreeViewType> TreeView;
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/** The search text box */
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TSharedPtr<class SSearchBox> SearchTextField;
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/** This buffer stores the currently displayed results */
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TArray<FSearchResult> ItemsFound;
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/** we need to keep a handle on the root result, because it won't show up in the tree */
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FSearchResult RootSearchResult;
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/** The string to highlight in the results */
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FText HighlightText;
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/** The string to search for */
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FString SearchValue;
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};
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