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80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "SViewportToolBar.h"
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/**
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* Custom widget to display a toggle/drop down menu.
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* Displayed as shown:
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* +--------+-------------+
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* | Toggle | Menu button |
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* +--------+-------------+
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*/
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class UNREALED_API SViewportToolBarComboMenu : public SCompoundWidget
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{
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public:
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SLATE_BEGIN_ARGS(SViewportToolBarComboMenu) : _BlockLocation(EMultiBlockLocation::Start), _MinDesiredButtonWidth(-1.0f) {}
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/** We need to know about the toolbar we are in */
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SLATE_ARGUMENT( TSharedPtr<class SViewportToolBar>, ParentToolBar );
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/** Content for the drop down menu */
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SLATE_EVENT( FOnGetContent, OnGetMenuContent )
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/** Called upon state change with the value of the next state */
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SLATE_EVENT( FOnCheckStateChanged, OnCheckStateChanged )
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/** Sets the current checked state of the checkbox */
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SLATE_ATTRIBUTE( ECheckBoxState, IsChecked )
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/** Icon shown on the toggle button */
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SLATE_ATTRIBUTE( FSlateIcon, Icon )
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/** Label shown on the menu button */
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SLATE_ATTRIBUTE( FText, Label )
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/** Overall style */
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SLATE_ATTRIBUTE( FName, Style )
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/** ToolTip shown on the menu button */
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SLATE_ATTRIBUTE( FText, MenuButtonToolTip )
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/** ToolTip shown on the toggle button */
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SLATE_ATTRIBUTE( FText, ToggleButtonToolTip )
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/** The button location */
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SLATE_ARGUMENT( EMultiBlockLocation::Type, BlockLocation )
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/** The minimum desired width of the menu button contents */
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SLATE_ARGUMENT( float, MinDesiredButtonWidth )
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SLATE_END_ARGS( )
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/**
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* Construct this widget
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*
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* @param InArgs The declaration data for this widget
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*/
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void Construct( const FArguments& InArgs );
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private:
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/**
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* Called when the menu button is clicked. Will toggle the visibility of the menu content
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*/
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FReply OnMenuClicked();
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/**
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* Called when the mouse enters a menu button. If there was a menu previously opened
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* we open this menu automatically
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*/
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void OnMouseEnter( const FGeometry& MyGeometry, const FPointerEvent& MouseEvent );
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private:
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/** Our menus anchor */
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TSharedPtr<SMenuAnchor> MenuAnchor;
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/** Parent tool bar for querying other open menus */
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TWeakPtr<class SViewportToolBar> ParentToolBar;
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};
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