101 lines
4.2 KiB
C#
101 lines
4.2 KiB
C#
using UnityEngine;
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using UnityEngine.UI;
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namespace UnityEditor.UI
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{
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[CustomPropertyDrawer(typeof(Navigation), true)]
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/// <summary>
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/// This is a PropertyDrawer for Navigation. It is implemented using the standard Unity PropertyDrawer framework.
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/// </summary>
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public class NavigationDrawer : PropertyDrawer
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{
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private class Styles
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{
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readonly public GUIContent navigationContent;
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public Styles()
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{
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navigationContent = EditorGUIUtility.TrTextContent("Navigation");
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}
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}
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private static Styles s_Styles = null;
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public override void OnGUI(Rect pos, SerializedProperty prop, GUIContent label)
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{
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if (s_Styles == null)
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s_Styles = new Styles();
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Rect drawRect = pos;
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drawRect.height = EditorGUIUtility.singleLineHeight;
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SerializedProperty navigation = prop.FindPropertyRelative("m_Mode");
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SerializedProperty wrapAround = prop.FindPropertyRelative("m_WrapAround");
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Navigation.Mode navMode = GetNavigationMode(navigation);
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EditorGUI.PropertyField(drawRect, navigation, s_Styles.navigationContent);
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++EditorGUI.indentLevel;
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drawRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
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switch (navMode)
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{
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case Navigation.Mode.Horizontal:
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case Navigation.Mode.Vertical:
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{
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EditorGUI.PropertyField(drawRect, wrapAround);
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drawRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
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}
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break;
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case Navigation.Mode.Explicit:
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{
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SerializedProperty selectOnUp = prop.FindPropertyRelative("m_SelectOnUp");
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SerializedProperty selectOnDown = prop.FindPropertyRelative("m_SelectOnDown");
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SerializedProperty selectOnLeft = prop.FindPropertyRelative("m_SelectOnLeft");
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SerializedProperty selectOnRight = prop.FindPropertyRelative("m_SelectOnRight");
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EditorGUI.PropertyField(drawRect, selectOnUp);
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drawRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
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EditorGUI.PropertyField(drawRect, selectOnDown);
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drawRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
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EditorGUI.PropertyField(drawRect, selectOnLeft);
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drawRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
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EditorGUI.PropertyField(drawRect, selectOnRight);
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drawRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
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}
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break;
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}
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--EditorGUI.indentLevel;
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}
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static Navigation.Mode GetNavigationMode(SerializedProperty navigation)
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{
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return (Navigation.Mode)navigation.enumValueIndex;
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}
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public override float GetPropertyHeight(SerializedProperty prop, GUIContent label)
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{
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SerializedProperty navigation = prop.FindPropertyRelative("m_Mode");
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if (navigation == null)
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return EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
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Navigation.Mode navMode = GetNavigationMode(navigation);
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switch (navMode)
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{
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case Navigation.Mode.None:
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return EditorGUIUtility.singleLineHeight;
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case Navigation.Mode.Horizontal:
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case Navigation.Mode.Vertical:
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return 2 * EditorGUIUtility.singleLineHeight + 2 * EditorGUIUtility.standardVerticalSpacing;
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case Navigation.Mode.Explicit:
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return 5 * EditorGUIUtility.singleLineHeight + 5 * EditorGUIUtility.standardVerticalSpacing;
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default:
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return EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
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}
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}
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}
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}
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