Singularity/Library/PackageCache/com.unity.mathematics@1.2.6/Unity.Mathematics.Editor/PrimitiveVectorDrawer.cs
2024-05-06 11:45:45 -07:00

241 lines
10 KiB
C#

using System;
using UnityEditor;
using UnityEngine;
namespace Unity.Mathematics.Editor
{
[CustomPropertyDrawer(typeof(bool2)), CustomPropertyDrawer(typeof(bool3)), CustomPropertyDrawer(typeof(bool4))]
[CustomPropertyDrawer(typeof(double2)), CustomPropertyDrawer(typeof(double3)), CustomPropertyDrawer(typeof(double4))]
[CustomPropertyDrawer(typeof(float2)), CustomPropertyDrawer(typeof(float3)), CustomPropertyDrawer(typeof(float4))]
[CustomPropertyDrawer(typeof(int2)), CustomPropertyDrawer(typeof(int3)), CustomPropertyDrawer(typeof(int4))]
[CustomPropertyDrawer(typeof(uint2)), CustomPropertyDrawer(typeof(uint3)), CustomPropertyDrawer(typeof(uint4))]
[CustomPropertyDrawer(typeof(DoNotNormalizeAttribute))]
class PrimitiveVectorDrawer : PropertyDrawer
{
private string _PropertyType;
string GetPropertyType(SerializedProperty property)
{
if (_PropertyType == null)
{
_PropertyType = property.type;
var isManagedRef = property.type.StartsWith("managedReference", StringComparison.Ordinal);
if (isManagedRef)
{
var startIndex = "managedReference<".Length;
var length = _PropertyType.Length - startIndex - 1;
_PropertyType = _PropertyType.Substring("managedReference<".Length, length);
}
}
return _PropertyType;
}
static class Content
{
public static readonly string doNotNormalizeCompatibility = L10n.Tr(
$"{typeof(DoNotNormalizeAttribute).Name} only works with {typeof(quaternion)} and primitive vector types."
);
public static readonly string doNotNormalizeTooltip =
L10n.Tr("This value is not normalized, which may produce unexpected results.");
public static readonly GUIContent[] labels2 = { new GUIContent("X"), new GUIContent("Y") };
public static readonly GUIContent[] labels3 = { new GUIContent("X"), new GUIContent("Y"), new GUIContent("Z") };
public static readonly GUIContent[] labels4 = { new GUIContent("X"), new GUIContent("Y"), new GUIContent("Z"), new GUIContent("W") };
}
public override bool CanCacheInspectorGUI(SerializedProperty property)
{
return false;
}
public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
{
var height = EditorGUIUtility.singleLineHeight;
if (!EditorGUIUtility.wideMode)
height += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
return height;
}
public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
var subLabels = Content.labels4;
var startIter = "x";
var propertyType = GetPropertyType(property);
switch (propertyType[propertyType.Length - 1])
{
case '2':
subLabels = Content.labels2;
break;
case '3':
subLabels = Content.labels3;
break;
case '4':
subLabels = Content.labels4;
break;
default:
{
if (property.type == nameof(quaternion))
startIter = "value.x";
else if (attribute is DoNotNormalizeAttribute)
{
EditorGUI.HelpBox(EditorGUI.PrefixLabel(position, label), Content.doNotNormalizeCompatibility, MessageType.None);
return;
}
break;
}
}
if (attribute is DoNotNormalizeAttribute && string.IsNullOrEmpty(label.tooltip))
label.tooltip = Content.doNotNormalizeTooltip;
label = EditorGUI.BeginProperty(position, label, property);
var valuesIterator = property.FindPropertyRelative(startIter);
MultiPropertyField(position, subLabels, valuesIterator, label);
EditorGUI.EndProperty();
}
void MultiPropertyField(Rect position, GUIContent[] subLabels, SerializedProperty valuesIterator, GUIContent label)
{
#if UNITY_2022_1_OR_NEWER
EditorGUI.MultiPropertyField(position, subLabels, valuesIterator, label, EditorGUI.PropertyVisibility.All);
#else
EditorGUICopy.MultiPropertyField(position, subLabels, valuesIterator, label);
#endif
}
}
#if !UNITY_2022_1_OR_NEWER
internal class EditorGUICopy
{
internal const float kSpacingSubLabel = 4;
private const float kIndentPerLevel = 15;
internal const float kPrefixPaddingRight = 2;
internal static int indentLevel = 0;
private static readonly int s_FoldoutHash = "Foldout".GetHashCode();
// internal static readonly SVC<float> kVerticalSpacingMultiField = new SVC<float>("--theme-multifield-vertical-spacing", 0.0f);
// kVerticalSpacingMultiField should actually look like the above line ^^^ but we don't have access to SVC<T>,
// so instead we just set this value to what is observed in the debugger with the Unity dark theme.
internal const float kVerticalSpacingMultiField = 2;
internal enum PropertyVisibility
{
All,
OnlyVisible
}
// This code is basically EditorGUI.MultiPropertyField(Rect, GUIContent[], SerializedProperty, GUIContent),
// but with the property visibility assumed to be "All" instead of "OnlyVisible". We really want to have "All"
// because it's possible for someone to hide something in the inspector with [HideInInspector] but then manually
// draw it themselves later. In this case, if you called EditorGUI.MultiPropertyField() directly, you'd
// end up with some fields that point to some unrelated visible property.
public static void MultiPropertyField(Rect position, GUIContent[] subLabels, SerializedProperty valuesIterator, GUIContent label)
{
int id = GUIUtility.GetControlID(s_FoldoutHash, FocusType.Keyboard, position);
position = MultiFieldPrefixLabel(position, id, label, subLabels.Length);
position.height = EditorGUIUtility.singleLineHeight;
MultiPropertyFieldInternal(position, subLabels, valuesIterator, PropertyVisibility.All);
}
internal static void BeginDisabled(bool disabled)
{
// Unused, but left here to minimize changes in EditorGUICopy.MultiPropertyFieldInternal().
}
internal static void EndDisabled()
{
// Unused, but left here to minimize changes in EditorGUICopy.MultiPropertyFieldInternal().
}
internal static float CalcPrefixLabelWidth(GUIContent label, GUIStyle style = null)
{
if (style == null)
style = EditorStyles.label;
return style.CalcSize(label).x;
}
internal static void MultiPropertyFieldInternal(Rect position, GUIContent[] subLabels, SerializedProperty valuesIterator, PropertyVisibility visibility, bool[] disabledMask = null, float prefixLabelWidth = -1)
{
int eCount = subLabels.Length;
float w = (position.width - (eCount - 1) * kSpacingSubLabel) / eCount;
Rect nr = new Rect(position) {width = w};
float t = EditorGUIUtility.labelWidth;
int l = indentLevel;
indentLevel = 0;
for (int i = 0; i < subLabels.Length; i++)
{
EditorGUIUtility.labelWidth = prefixLabelWidth > 0 ? prefixLabelWidth : CalcPrefixLabelWidth(subLabels[i]);
if (disabledMask != null)
BeginDisabled(disabledMask[i]);
EditorGUI.PropertyField(nr, valuesIterator, subLabels[i]);
if (disabledMask != null)
EndDisabled();
nr.x += w + kSpacingSubLabel;
switch (visibility)
{
case PropertyVisibility.All:
valuesIterator.Next(false);
break;
case PropertyVisibility.OnlyVisible:
valuesIterator.NextVisible(false);
break;
}
}
EditorGUIUtility.labelWidth = t;
indentLevel = l;
}
internal static bool LabelHasContent(GUIContent label)
{
if (label == null)
{
return true;
}
// @TODO: find out why checking for GUIContent.none doesn't work
return label.text != string.Empty || label.image != null;
}
internal static float indent => indentLevel * kIndentPerLevel;
internal static Rect MultiFieldPrefixLabel(Rect totalPosition, int id, GUIContent label, int columns)
{
if (!LabelHasContent(label))
{
return EditorGUI.IndentedRect(totalPosition);
}
if (EditorGUIUtility.wideMode)
{
Rect labelPosition = new Rect(totalPosition.x + indent, totalPosition.y, EditorGUIUtility.labelWidth - indent, EditorGUIUtility.singleLineHeight);
Rect fieldPosition = totalPosition;
fieldPosition.xMin += EditorGUIUtility.labelWidth + kPrefixPaddingRight;
// If there are 2 columns we use the same column widths as if there had been 3 columns
// in order to make columns line up neatly.
if (columns == 2)
{
float columnWidth = (fieldPosition.width - (3 - 1) * kSpacingSubLabel) / 3f;
fieldPosition.xMax -= (columnWidth + kSpacingSubLabel);
}
EditorGUI.HandlePrefixLabel(totalPosition, labelPosition, label, id);
return fieldPosition;
}
else
{
Rect labelPosition = new Rect(totalPosition.x + indent, totalPosition.y, totalPosition.width - indent, EditorGUIUtility.singleLineHeight);
Rect fieldPosition = totalPosition;
fieldPosition.xMin += indent + kIndentPerLevel;
fieldPosition.yMin += EditorGUIUtility.singleLineHeight + kVerticalSpacingMultiField;
EditorGUI.HandlePrefixLabel(totalPosition, labelPosition, label, id);
return fieldPosition;
}
}
}
#endif
}