Files
UnrealEngine/Engine/Plugins/Runtime/StateTree/Source/StateTreeEditorModule/Private/SStateTreeViewRow.h
2025-05-18 13:04:45 +08:00

140 lines
5.4 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "Widgets/Views/STableRow.h"
#include "Widgets/Views/SListView.h"
class STableViewBase;
class UStateTreeState;
enum class EStateTreeTransitionTrigger : uint8;
enum class EStateTreeNodeFormatting : uint8;
struct FStateTreeStateLink;
struct FStateTreeEditorNode;
class UStateTreeEditorData;
class SStateTreeView;
class SBorder;
class SInlineEditableTextBlock;
class SScrollBox;
class FStateTreeViewModel;
class SStateTreeViewRow : public STableRow<TWeakObjectPtr<UStateTreeState>>
{
public:
SLATE_BEGIN_ARGS(SStateTreeViewRow)
{
}
SLATE_END_ARGS()
void Construct(const FArguments& InArgs, const TSharedRef<STableViewBase>& InOwnerTableView, TWeakObjectPtr<UStateTreeState> InState, const TSharedPtr<SScrollBox>& ViewBox, TSharedPtr<FStateTreeViewModel> InStateTreeViewModel);
~SStateTreeViewRow();
void RequestRename() const;
private:
enum class ETransitionDescRequirement : uint8
{
Any,
RequiredTrue,
RequiredFalse,
};
/**
* Filtering options used to build the description of the transitions.
* The default setup includes only enabled transition,
* with or without breakpoints and requires exact trigger match (no partial mask)
*/
struct FTransitionDescFilterOptions
{
FTransitionDescFilterOptions() {};
ETransitionDescRequirement Enabled = ETransitionDescRequirement::RequiredTrue;
ETransitionDescRequirement WithBreakpoint = ETransitionDescRequirement::Any;
bool bUseMask = false;
};
TSharedRef<SWidget> MakeTasksWidget(const TSharedPtr<SScrollBox>& ViewBox);
TSharedRef<SWidget> MakeConditionsWidget(const TSharedPtr<SScrollBox>& ViewBox);
void MakeTransitionsWidget();
TSharedRef<SWidget> MakeTransitionWidget(const EStateTreeTransitionTrigger Trigger, const FSlateBrush* Icon);
TSharedRef<SWidget> MakeTransitionWidgetInternal(const EStateTreeTransitionTrigger Trigger, const FTransitionDescFilterOptions FilterOptions = {});
void MakeFlagsWidget();
FSlateColor GetTitleColor(const float Alpha = 1.0f, const float Lighten = 0.0f) const;
FSlateColor GetActiveStateColor() const;
FText GetStateDesc() const;
FText GetStateIDDesc() const;
FSlateColor GetSubTreeMarkerColor() const;
EVisibility GetSubTreeVisibility() const;
EVisibility GetConditionVisibility() const;
EVisibility GetStateBreakpointVisibility() const;
FText GetStateBreakpointTooltipText() const;
const FSlateBrush* GetSelectorIcon() const;
FText GetSelectorTooltip() const;
FText GetStateTypeTooltip() const;
const FStateTreeEditorNode* GetTaskNodeByID(FGuid TaskID) const;
EVisibility GetTaskIconVisibility(FGuid TaskID) const;
const FSlateBrush* GetTaskIcon(FGuid TaskID) const;
FSlateColor GetTaskIconColor(FGuid TaskID) const;
FText GetTaskDesc(FGuid TaskID, EStateTreeNodeFormatting Formatting) const;
const FStateTreeEditorNode* GetConditionNodeByID(FGuid ConditionID) const;
EVisibility GetConditionIconVisibility(FGuid ConditionID) const;
const FSlateBrush* GetConditionIcon(FGuid ConditionID) const;
FSlateColor GetConditionIconColor(FGuid ConditionID) const;
FText GetConditionDesc(FGuid ConditionID, EStateTreeNodeFormatting Formatting) const;
FText GetOperandText(const int32 ConditionIndex) const;
FText GetOpenParens(const int32 ConditionIndex) const;
FText GetCloseParens(const int32 ConditionIndex) const;
EVisibility GetLinkedStateVisibility() const;
FText GetLinkedStateDesc() const;
bool GetStateWarnings(FText* OutText) const;
EVisibility GetWarningsVisibility() const;
FText GetWarningsTooltipText() const;
EVisibility GetStateDescriptionVisibility() const;
FText GetStateDescription() const;
EVisibility GetTransitionDashVisibility() const;
FText GetLinkTooltip(const FStateTreeStateLink& Link, const FGuid NodeID) const;
FText GetTransitionsDesc(const EStateTreeTransitionTrigger Trigger, const FTransitionDescFilterOptions FilterOptions = {}) const;
const FSlateBrush* GetTransitionsIcon(const EStateTreeTransitionTrigger Trigger) const;
EVisibility GetTransitionsVisibility(const EStateTreeTransitionTrigger Trigger) const;
EVisibility GetTransitionsBreakpointVisibility(const EStateTreeTransitionTrigger Trigger) const;
bool HasParentTransitionForTrigger(const UStateTreeState& State, const EStateTreeTransitionTrigger Trigger) const;
bool IsRootState() const;
bool IsLeafState() const;
bool IsStateSelected() const;
bool HandleVerifyNodeLabelTextChanged(const FText& InText, FText& OutErrorMessage) const;
void HandleNodeLabelTextCommitted(const FText& NewLabel, ETextCommit::Type CommitType) const;
FReply HandleDragDetected(const FGeometry&, const FPointerEvent&) const;
void HandleDragLeave(const FDragDropEvent& DragDropEvent) const;
TOptional<EItemDropZone> HandleCanAcceptDrop(const FDragDropEvent& DragDropEvent, EItemDropZone DropZone, TWeakObjectPtr<UStateTreeState> TargetState) const;
FReply HandleAcceptDrop(const FDragDropEvent& DragDropEvent, EItemDropZone DropZone, TWeakObjectPtr<UStateTreeState> TargetState) const;
void HandleAssetChanged();
void HandleStatesChanged(const TSet<UStateTreeState*>& ChangedStates, const FPropertyChangedEvent& PropertyChangedEvent);
TSharedPtr<FStateTreeViewModel> StateTreeViewModel;
TWeakObjectPtr<UStateTreeState> WeakState;
TWeakObjectPtr<UStateTreeEditorData> WeakEditorData;
TSharedPtr<SInlineEditableTextBlock> NameTextBlock;
TSharedPtr<SBorder> FlagsContainer;
TSharedPtr<SHorizontalBox> TransitionsContainer;
FDelegateHandle AssetChangedHandle;
FDelegateHandle StatesChangedHandle;
};