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CrowdControl/Assets/Plugins/NaughtyAttributes/Scripts/Editor/PropertyDrawers/ResizableTextAreaPropertyDr...

81 lines
2.2 KiB
C#

using UnityEngine;
using UnityEditor;
using System.Text.RegularExpressions;
using System;
namespace NaughtyAttributes.Editor
{
[CustomPropertyDrawer(typeof(ResizableTextAreaAttribute))]
public class ResizableTextAreaPropertyDrawer : PropertyDrawerBase
{
protected override float GetPropertyHeight_Internal(SerializedProperty property, GUIContent label)
{
if (property.propertyType == SerializedPropertyType.String)
{
float labelHeight = EditorGUIUtility.singleLineHeight;
float textAreaHeight = GetTextAreaHeight(property.stringValue);
return labelHeight + textAreaHeight;
}
else
{
return GetPropertyHeight(property) + GetHelpBoxHeight();
}
}
protected override void OnGUI_Internal(Rect rect, SerializedProperty property, GUIContent label)
{
EditorGUI.BeginProperty(rect, label, property);
if (property.propertyType == SerializedPropertyType.String)
{
Rect labelRect = new Rect()
{
x = rect.x,
y = rect.y,
width = rect.width,
height = EditorGUIUtility.singleLineHeight
};
EditorGUI.LabelField(labelRect, label.text);
EditorGUI.BeginChangeCheck();
Rect textAreaRect = new Rect()
{
x = labelRect.x,
y = labelRect.y + EditorGUIUtility.singleLineHeight,
width = labelRect.width,
height = GetTextAreaHeight(property.stringValue)
};
string textAreaValue = EditorGUI.TextArea(textAreaRect, property.stringValue);
if (EditorGUI.EndChangeCheck())
{
property.stringValue = textAreaValue;
}
}
else
{
string message = typeof(ResizableTextAreaAttribute).Name + " can only be used on string fields";
DrawDefaultPropertyAndHelpBox(rect, property, message, MessageType.Warning);
}
EditorGUI.EndProperty();
}
private int GetNumberOfLines(string text)
{
string content = Regex.Replace(text, @"\r\n|\n\r|\r|\n", Environment.NewLine);
string[] lines = content.Split(new string[] { Environment.NewLine }, StringSplitOptions.None);
return lines.Length;
}
private float GetTextAreaHeight(string text)
{
float height = (EditorGUIUtility.singleLineHeight - 3.0f) * GetNumberOfLines(text) + 3.0f;
return height;
}
}
}