UnrealEngineUWP/Engine/Source/Editor/LevelEditor/Private/SLevelViewportControlsPopup.h

// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.


#pragma once

/**
* Widget that opens a controls help popup when clicked
*/
class SLevelViewportControlsPopup : public SCompoundWidget
{
public:
	SLATE_BEGIN_ARGS(SLevelViewportControlsPopup)
	{}
	SLATE_END_ARGS()

	/**
	* Constructs the menu
	*/
	void Construct(const FArguments& Declaration);
private:
	/**
	 * Gets the current image for the button depending on state
	 */
	const FSlateBrush* GetButtonImage() const;

	/**
	 * Responds to mouse clicks
	 */
	FReply OnClicked() const;

	/**
	 * Gets content for the popup
	 */
	TSharedRef<SWidget> OnGetMenuContent();

private:
	/** Our menu's anchor */
	TSharedPtr<SMenuAnchor> MenuAnchor;
	/** The Button to open the menu*/
	TSharedPtr< SButton > Button;
	/** The Image to display on the button */
	TSharedPtr< SImage > ButtonImage;
	/** Default Button Image */
	const FSlateBrush* Default;
	/** Button Image while hovered */
	const FSlateBrush* Hovered;
	/** Button Image when pressed */
	const FSlateBrush* Pressed;
	/** Size of the viewport controls popup */
	FVector2D PopupSize;
	/** Path to html file for viewport controls */
	FString PopupPath;
};