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Sebastian Cabrera 2021-08-02 05:44:37 -04:00
parent 53eb92e9af
commit 270ab7d11f
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Library/PackageCache/com.unity.ugui@1.0.0/Editor/UI/LayoutPropertiesPreview.cs Normal file
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using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using UnityEngine.UI;
using System.Globalization;
namespace UnityEditor.Events
{
[CustomPreview(typeof(GameObject))]
/// <summary>
/// Custom preview drawing that will draw the layout properties of a given object.
/// </summary>
class LayoutPropertiesPreview : ObjectPreview
{
private const float kLabelWidth = 110;
private const float kValueWidth = 100;
class Styles
{
public GUIStyle labelStyle = new GUIStyle(EditorStyles.label);
public GUIStyle headerStyle = new GUIStyle(EditorStyles.boldLabel);
public Styles()
{
labelStyle.padding.right += 4;
headerStyle.padding.right += 4;
}
}
private GUIContent m_Title;
private Styles m_Styles = new Styles();
public override void Initialize(UnityEngine.Object[] targets)
{
base.Initialize(targets);
}
public override GUIContent GetPreviewTitle()
{
if (m_Title == null)
{
m_Title = EditorGUIUtility.TrTextContent("Layout Properties");
}
return m_Title;
}
public override bool HasPreviewGUI()
{
GameObject go = target as GameObject;
if (!go)
return false;
// Prevent allocations in the editor by using TryGetComponent
ILayoutElement layoutElement;
return go.TryGetComponent(out layoutElement);
}
public override void OnPreviewGUI(Rect r, GUIStyle background)
{
if (Event.current.type != EventType.Repaint)
return;
if (m_Styles == null)
m_Styles = new Styles();
GameObject go = target as GameObject;
RectTransform rect = go.transform as RectTransform;
if (rect == null)
return;
// Apply padding
RectOffset previewPadding = new RectOffset(-5, -5, -5, -5);
r = previewPadding.Add(r);
// Prepare rects for columns
r.height = EditorGUIUtility.singleLineHeight;
Rect labelRect = r;
Rect valueRect = r;
Rect sourceRect = r;
labelRect.width = kLabelWidth;
valueRect.xMin += kLabelWidth;
valueRect.width = kValueWidth;
sourceRect.xMin += kLabelWidth + kValueWidth;
// Headers
GUI.Label(labelRect, "Property", m_Styles.headerStyle);
GUI.Label(valueRect, "Value", m_Styles.headerStyle);
GUI.Label(sourceRect, "Source", m_Styles.headerStyle);
labelRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
valueRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
sourceRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
// Prepare reusable variable for out argument
ILayoutElement source = null;
// Show properties
ShowProp(ref labelRect, ref valueRect, ref sourceRect, "Min Width", LayoutUtility.GetLayoutProperty(rect, e => e.minWidth, 0, out source).ToString(CultureInfo.InvariantCulture.NumberFormat), source);
ShowProp(ref labelRect, ref valueRect, ref sourceRect, "Min Height", LayoutUtility.GetLayoutProperty(rect, e => e.minHeight, 0, out source).ToString(CultureInfo.InvariantCulture.NumberFormat), source);
ShowProp(ref labelRect, ref valueRect, ref sourceRect, "Preferred Width", LayoutUtility.GetLayoutProperty(rect, e => e.preferredWidth, 0, out source).ToString(CultureInfo.InvariantCulture.NumberFormat), source);
ShowProp(ref labelRect, ref valueRect, ref sourceRect, "Preferred Height", LayoutUtility.GetLayoutProperty(rect, e => e.preferredHeight, 0, out source).ToString(CultureInfo.InvariantCulture.NumberFormat), source);
float flexible = 0;
flexible = LayoutUtility.GetLayoutProperty(rect, e => e.flexibleWidth, 0, out source);
ShowProp(ref labelRect, ref valueRect, ref sourceRect, "Flexible Width", flexible > 0 ? ("enabled (" + flexible.ToString(CultureInfo.InvariantCulture.NumberFormat) + ")") : "disabled", source);
flexible = LayoutUtility.GetLayoutProperty(rect, e => e.flexibleHeight, 0, out source);
ShowProp(ref labelRect, ref valueRect, ref sourceRect, "Flexible Height", flexible > 0 ? ("enabled (" + flexible.ToString(CultureInfo.InvariantCulture.NumberFormat) + ")") : "disabled", source);
if (!rect.GetComponent<LayoutElement>())
{
Rect noteRect = new Rect(labelRect.x, labelRect.y + 10, r.width, EditorGUIUtility.singleLineHeight);
GUI.Label(noteRect, "Add a LayoutElement to override values.", m_Styles.labelStyle);
}
}
private void ShowProp(ref Rect labelRect, ref Rect valueRect, ref Rect sourceRect, string label, string value, ILayoutElement source)
{
GUI.Label(labelRect, label, m_Styles.labelStyle);
GUI.Label(valueRect, value, m_Styles.labelStyle);
GUI.Label(sourceRect, source == null ? "none" : source.GetType().Name, m_Styles.labelStyle);
labelRect.y += EditorGUIUtility.singleLineHeight;
valueRect.y += EditorGUIUtility.singleLineHeight;
sourceRect.y += EditorGUIUtility.singleLineHeight;
}
}
}