Files
UnrealEngineUWP/Engine/Source/Editor/MaterialEditor/Private/MaterialEditorInstanceDetailCustomization.h
2014-03-14 14:13:41 -04:00

70 lines
3.3 KiB
C++

// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.
#pragma once
DECLARE_DELEGATE_OneParam(FGetShowHiddenParameters, bool&);
/*-----------------------------------------------------------------------------
FMaterialInstanceParameterDetails
-----------------------------------------------------------------------------*/
class FMaterialInstanceParameterDetails : public IDetailCustomization
{
public:
/** Makes a new instance of this detail layout class for a specific detail view requesting it */
static TSharedRef<class IDetailCustomization> MakeInstance(UMaterialEditorInstanceConstant* MaterialInstance, FGetShowHiddenParameters InShowHiddenDelegate);
/** Constructor */
FMaterialInstanceParameterDetails(UMaterialEditorInstanceConstant* MaterialInstance, FGetShowHiddenParameters InShowHiddenDelegate);
/** IDetailCustomization interface */
virtual void CustomizeDetails(IDetailLayoutBuilder& DetailLayout) OVERRIDE;
static TOptional<float> OnGetValue(TSharedRef<IPropertyHandle> PropertyHandle);
static void OnValueCommitted(float NewValue, ETextCommit::Type CommitType, TSharedRef<IPropertyHandle> PropertyHandle);
private:
/** Builds the custom parameter groups category */
void CreateGroupsWidget(TSharedRef<IPropertyHandle> ParameterGroupsProperty, class IDetailCategoryBuilder& GroupsCategory);
/** Builds the widget for an individual parameter group */
void CreateSingleGroupWidget(struct FEditorParameterGroup& ParameterGroup, TSharedPtr<IPropertyHandle> ParameterGroupProperty, class IDetailGroup& DetailGroup );
/** These methods generate the custom widgets for the various parameter types */
void CreateParameterValueWidget(class UDEditorParameterValue* Parameter, TSharedPtr<IPropertyHandle> ParameterProperty, IDetailGroup& DetailGroup );
void CreateMaskParameterValueWidget(class UDEditorParameterValue* Parameter, TSharedPtr<IPropertyHandle> ParameterProperty, IDetailGroup& DetailGroup );
void CreateFontParameterValueWidget(class UDEditorParameterValue* Parameter, TSharedPtr<IPropertyHandle> ParameterProperty, IDetailGroup& DetailGroup );
/** Returns true if the parameter is in the visible expressions list */
bool IsVisibleExpression(class UDEditorParameterValue* Parameter);
/** Returns true if the parameter should be displayed */
EVisibility ShouldShowExpression(class UDEditorParameterValue* Parameter) const;
/** Returns true if the parameter is being overridden */
bool IsOverriddenExpression(class UDEditorParameterValue* Parameter);
/** Gets the expression description of this parameter from the the base material */
FString GetParameterExpressionDescription(class UDEditorParameterValue* Parameter) const;
/**
* Called when a parameter is overridden;
*/
void OnOverrideParameter(bool NewValue, class UDEditorParameterValue* Parameter);
/** Reset to default implementation. Resets Parameter to default */
void ResetToDefault( class UDEditorParameterValue* Parameter );
/** Returns true if the refraction options should be displayed */
EVisibility ShouldShowMaterialRefractionSettings() const;
private:
/** Object that stores all of the possible parameters we can edit */
UMaterialEditorInstanceConstant* MaterialEditorInstance;
/** Delegate to call to determine if hidden parameters should be shown */
FGetShowHiddenParameters ShowHiddenDelegate;
};