// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
using System;
using System.Collections.Generic;
using UnityEngine;
namespace Microsoft.MixedReality.Toolkit.UI
{
///
/// Theme Engine to control initialized GameObject's scale based on state changes
///
public class InteractableScaleTheme : InteractableThemeBase
{
protected Vector3 originalScale;
protected Transform hostTransform;
public InteractableScaleTheme()
{
Types = new Type[] { typeof(Transform) };
Name = "Scale Theme";
}
///
public override ThemeDefinition GetDefaultThemeDefinition()
{
return new ThemeDefinition()
{
ThemeType = GetType(),
StateProperties = new List()
{
new ThemeStateProperty()
{
Name = "Scale",
Type = ThemePropertyTypes.Vector3,
Values = new List(),
Default = new ThemePropertyValue() { Vector3 = Vector3.one}
},
},
CustomProperties = new List()
{
new ThemeProperty()
{
Name = "Relative Scale",
Tooltip = "Should the scale be relative to initial Gameobject scale, or absolute",
Type = ThemePropertyTypes.Bool,
Value = new ThemePropertyValue() { Bool = false }
},
},
};
}
///
public override void Init(GameObject host, ThemeDefinition settings)
{
hostTransform = host.transform;
originalScale = hostTransform.localScale;
base.Init(host, settings);
}
///
public override ThemePropertyValue GetProperty(ThemeStateProperty property)
{
ThemePropertyValue start = new ThemePropertyValue();
start.Vector3 = hostTransform != null ? hostTransform.localScale : Vector3.zero;
return start;
}
///
public override void SetValue(ThemeStateProperty property, int index, float percentage)
{
Vector3 lerpTarget = property.Values[index].Vector3;
bool relative = Properties[0].Value.Bool;
if (relative)
{
lerpTarget = Vector3.Scale(originalScale, lerpTarget);
}
SetScale(Vector3.Lerp(property.StartValue.Vector3, lerpTarget, percentage));
}
///
protected override void SetValue(ThemeStateProperty property, ThemePropertyValue value)
{
SetScale(value.Vector3);
}
private void SetScale(Vector3 newScale)
{
if (hostTransform != null)
{
hostTransform.localScale = newScale;
}
}
}
}