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a569f6b356
UETOOL-213 - Minimize Slate FString -> FText conversion (remove SLATE_TEXT_ATTRIBUTE) This fixes any editor/engine specific code that was passing text to Slate as FString rather than FText. [CL 2399803 by Jamie Dale in Main branch]
97 lines
2.8 KiB
C++
97 lines
2.8 KiB
C++
// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "NameTypes.h"
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#include "SWidget.h"
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#include "SharedPointer.h"
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#include "SlateEnums.h"
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#include "SCompoundWidget.h"
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#include "SComboBox.h"
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//#include "UnrealString.h"
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/**
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* A combo box that shows FName content.
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*/
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class SNameComboBox : public SCompoundWidget
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{
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public:
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DECLARE_DELEGATE_RetVal_OneParam(FString, FGetNameComboLabel, TSharedPtr<FName>);
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typedef TSlateDelegates< TSharedPtr<FName> >::FOnSelectionChanged FOnNameSelectionChanged;
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SLATE_BEGIN_ARGS( SNameComboBox )
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: _ColorAndOpacity( FSlateColor::UseForeground() )
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, _ContentPadding(FMargin(4.0, 2.0))
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, _OnGetNameLabelForItem()
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{}
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/** Selection of FNames to pick from */
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SLATE_ARGUMENT( TArray< TSharedPtr<FName> >*, OptionsSource )
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/** Text color and opacity */
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SLATE_ATTRIBUTE( FSlateColor, ColorAndOpacity )
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/** Visual padding of the button content for the combobox */
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SLATE_ATTRIBUTE( FMargin, ContentPadding )
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/** Called when the FName is chosen. */
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SLATE_EVENT( FOnNameSelectionChanged, OnSelectionChanged)
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/** Called when the combo box is opened */
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SLATE_EVENT( FOnComboBoxOpening, OnComboBoxOpening )
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/** Called when combo box needs to establish selected item */
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SLATE_ARGUMENT( TSharedPtr<FName>, InitiallySelectedItem )
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/** [Optional] Called to get the label for the currently selected item */
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SLATE_EVENT( FGetNameComboLabel, OnGetNameLabelForItem )
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SLATE_END_ARGS()
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void Construct( const FArguments& InArgs );
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/** Called to create a widget for each FName */
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TSharedRef<SWidget> MakeItemWidget( TSharedPtr<FName> StringItem );
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void SetSelectedItem (TSharedPtr<FName> NewSelection);
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/** Returns the currently selected FName */
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TSharedPtr<FName> GetSelectedItem()
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{
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return SelectedItem;
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}
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/** Request to reload the name options in the combobox from the OptionsSource attribute */
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void RefreshOptions();
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/** Clears the selected item in the name combo */
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void ClearSelection();
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private:
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TSharedPtr<FName> OnGetSelection() const {return SelectedItem;}
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/** Called when selection changes in the combo pop-up */
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void OnSelectionChanged(TSharedPtr<FName> Selection, ESelectInfo::Type SelectInfo);
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/** Helper method to get the text for a given item in the combo box */
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FText GetSelectedNameLabel() const;
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FText GetItemNameLabel(TSharedPtr<FName> StringItem) const;
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private:
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/** Called to get the text label for an item */
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FGetNameComboLabel GetTextLabelForItem;
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/** The FName item selected */
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TSharedPtr<FName> SelectedItem;
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/** Array of shared pointers to FNames so combo widget can work on them */
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TArray< TSharedPtr<FName> > Names;
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/** The combo box */
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TSharedPtr< SComboBox< TSharedPtr<FName> > > NameCombo;
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/** Forwarding Delegate */
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FOnNameSelectionChanged SelectionChanged;
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};
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