124 lines
4.6 KiB
C#
124 lines
4.6 KiB
C#
/// Credit Ben MacKinnon @Dover8
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/// Sourced from - https://github.com/Dover8/Unity-UI-Extensions/tree/range-slider
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/// Usage: Extension of the standard slider. Two handles determine a low and high value between a Min and Max.
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/// Raises a UnityEvent passing the low and high values
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using UnityEditor;
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using UnityEditor.UI;
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namespace UnityEngine.UI.Extensions
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{
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[CustomEditor(typeof(RangeSlider), true)]
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[CanEditMultipleObjects]
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public class RangeSliderEditor : SelectableEditor
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{
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SerializedProperty m_LowHandleRect;
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SerializedProperty m_HighHandleRect;
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SerializedProperty m_FillRect;
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SerializedProperty m_MinValue;
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SerializedProperty m_MaxValue;
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SerializedProperty m_WholeNumbers;
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SerializedProperty m_LowValue;
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SerializedProperty m_HighValue;
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//need ref values for the editor MinMaxSlider
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float low = 0;
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float high = 1;
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SerializedProperty m_OnValueChanged;
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protected override void OnEnable()
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{
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base.OnEnable();
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m_LowHandleRect = serializedObject.FindProperty("m_LowHandleRect");
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m_HighHandleRect = serializedObject.FindProperty("m_HighHandleRect");
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m_FillRect = serializedObject.FindProperty("m_FillRect");
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m_MinValue = serializedObject.FindProperty("m_MinValue");
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m_MaxValue = serializedObject.FindProperty("m_MaxValue");
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m_WholeNumbers = serializedObject.FindProperty("m_WholeNumbers");
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m_LowValue = serializedObject.FindProperty("m_LowValue");
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low = m_LowValue.floatValue;
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m_HighValue = serializedObject.FindProperty("m_HighValue");
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high = m_HighValue.floatValue;
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m_OnValueChanged = serializedObject.FindProperty("m_OnValueChanged");
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}
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public override void OnInspectorGUI()
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{
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base.OnInspectorGUI();
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EditorGUILayout.Space();
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serializedObject.Update();
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//grab the updated value affected by m_WholeNumbers
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low = m_LowValue.floatValue;
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high = m_HighValue.floatValue;
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EditorGUILayout.PropertyField(m_LowHandleRect);
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EditorGUILayout.PropertyField(m_HighHandleRect);
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EditorGUILayout.PropertyField(m_FillRect);
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if (m_LowHandleRect.objectReferenceValue != null && m_HighHandleRect.objectReferenceValue != null)
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{
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EditorGUI.BeginChangeCheck();
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EditorGUILayout.PropertyField(m_MinValue);
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EditorGUILayout.PropertyField(m_MaxValue);
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EditorGUILayout.PropertyField(m_WholeNumbers);
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//We're going to do a fair bit of layout here
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EditorGUILayout.BeginHorizontal();
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//Low Label and value
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EditorGUILayout.BeginVertical();
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EditorGUILayout.BeginHorizontal();
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GUILayout.FlexibleSpace();
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GUILayout.Label("Low");
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GUILayout.FlexibleSpace();
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EditorGUILayout.EndHorizontal();
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low = EditorGUILayout.DelayedFloatField(low, GUILayout.MaxWidth(100));
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EditorGUILayout.EndVertical();
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GUILayout.FlexibleSpace();
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//Slider
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EditorGUILayout.BeginVertical();
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GUILayout.FlexibleSpace();
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EditorGUILayout.MinMaxSlider(ref low, ref high, m_MinValue.floatValue, m_MaxValue.floatValue, GUILayout.ExpandWidth(true));
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EditorGUILayout.EndVertical();
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GUILayout.FlexibleSpace();
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//High label and value
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EditorGUILayout.BeginVertical();
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EditorGUILayout.BeginHorizontal();
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GUILayout.FlexibleSpace();
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GUILayout.Label("High");
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GUILayout.FlexibleSpace();
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EditorGUILayout.EndHorizontal();
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high = EditorGUILayout.DelayedFloatField(high, GUILayout.MaxWidth(100));
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EditorGUILayout.EndVertical();
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EditorGUILayout.EndHorizontal();
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m_LowValue.floatValue = low;
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m_HighValue.floatValue = high;
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EditorGUILayout.Space();
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EditorGUILayout.PropertyField(m_OnValueChanged);
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}
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else
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{
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EditorGUILayout.HelpBox("Specify a RectTransform for the RangeSlider fill or the RangeSlider handles or both. Each must have a parent RectTransform that it can slide within.", MessageType.Info);
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}
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serializedObject.ApplyModifiedProperties();
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}
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}
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}
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