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// Unity C# reference source

// Copyright (c) Unity Technologies. For terms of use, see

// https://unity3d.com/legal/licenses/Unity_Reference_Only_License

using UnityEngine;

using System;

namespace UnityEditor

{

// Resolution/Aspect ratio menu for the GameView, with an optional toggle for low-resolution aspect ratios

internal class GameViewSizeMenu : FlexibleMenu

{

const float kTopMargin = 7f;

const float kMargin = 9f;

IGameViewSizeMenuUser m_GameView;

float frameHeight { get { return kTopMargin * 2 + EditorGUI.kSingleLineHeight; } }

float contentOffset { get { return frameHeight + EditorGUI.kControlVerticalSpacing; } }

public GameViewSizeMenu(IFlexibleMenuItemProvider itemProvider, int selectionIndex, FlexibleMenuModifyItemUI modifyItemUi, IGameViewSizeMenuUser gameView)

: base(itemProvider, selectionIndex, modifyItemUi, gameView.SizeSelectionCallback)

{

m_GameView = gameView;

}

public override Vector2 GetWindowSize()

{

var lowAspectRatiosContentSize = EditorStyles.toggle.CalcSize(GameView.Styles.lowResAspectRatiosContextMenuContent);

var size = CalcSize();

size.x = Mathf.Max(size.x, lowAspectRatiosContentSize.x + kMargin * 2);

size.y += frameHeight + EditorGUI.kControlVerticalSpacing;

return size;

}

public override void OnGUI(Rect rect)

{

var frameRect = new Rect(rect.x, rect.y, rect.width, frameHeight);

GUI.Label(frameRect, "", EditorStyles.viewBackground);

GUI.enabled = !m_GameView.forceLowResolutionAspectRatios;

var toggleRect = new Rect(kMargin, kTopMargin, rect.width, EditorGUI.kSingleLineHeight);

m_GameView.lowResolutionForAspectRatios = GUI.Toggle(toggleRect, m_GameView.forceLowResolutionAspectRatios || m_GameView.lowResolutionForAspectRatios, GameView.Styles.lowResAspectRatiosContextMenuContent);

GUI.enabled = true;

rect.height = rect.height - contentOffset;

rect.y = rect.y + contentOffset;

base.OnGUI(rect);

}

}

} // namespace