private void DrawSegmentedBox(UIMeshAnchoringV2 obj, Vector3 minAnchor, Vector3 maxAnchor)
{
var upperLeft = new Vector3(minAnchor.x, maxAnchor.y, minAnchor.z);
var lowerRight = new Vector3(maxAnchor.x, minAnchor.y, minAnchor.z);
int dottedSize = 5;
Handles.DrawDottedLine(minAnchor, upperLeft, dottedSize);
Handles.DrawDottedLine(upperLeft, maxAnchor, dottedSize);
Handles.DrawDottedLine(maxAnchor, lowerRight, dottedSize);
Handles.DrawDottedLine(lowerRight, minAnchor, dottedSize);
}
public override void OnInspectorGUI()
{
UIMeshAnchoringV2 obj = (UIMeshAnchoringV2)target;
if (!(obj.transform.parent is RectTransform))
{
EditorGUILayout.HelpBox("The parent object must have a Rect Transform.", MessageType.Error);
}
DrawDefaultInspector();
SnapAnchorsToCroners(obj);
serializedObject.ApplyModifiedProperties();
}
void SnapAnchorsToCroners(UIMeshAnchoringV2 obj)
{
if (obj.refParentTransform == null)
{
return;
}
Vector3[] corners = new Vector3[4];
obj.refParentTransform.GetWorldCorners(corners);
if (GUILayout.Button("Snap Anchors to Corners"))
{
Undo.RecordObject(obj, "Snap acnhros to corners.");
obj.minAnchor = new Vector2(
(obj.refBounds.min.x - corners[0].x) / (corners[2].x - corners[0].x),
(obj.refBounds.min.y - corners[0].y) / (corners[2].y - corners[0].y));
obj.maxAnchor = new Vector2(
(obj.refBounds.max.x - corners[0].x) / (corners[2].x - corners[0].x),
(obj.refBounds.max.y - corners[0].y) / (corners[2].y - corners[0].y));
}
}
protected virtual void OnSceneGUI()
{
UIMeshAnchoringV2 obj = (UIMeshAnchoringV2)target;
Vector3[] corners = new Vector3[4];
if (obj.refParentTransform == null)
{
return;
}
obj.refParentTransform.GetWorldCorners(corners);
Vector3 minAnchor;
Vector3 maxAnchor;
float size = 1;
float handleSize = HandleUtility.GetHandleSize(new Vector3(size, size, 1));
Vector3 snap = Vector3.one * 0.5f;
DrawSegmentedBox(obj, obj.GetMinAnchorCurrentWorldPosition(corners), obj.GetMaxAnchorCurrentWorldPosition(corners));
EditorGUI.BeginChangeCheck();
if (SceneView.lastActiveSceneView.in2DMode)
{
minAnchor = Handles.FreeMoveHandle(obj.GetMinAnchorCurrentWorldPosition(corners), Quaternion.identity, 3, Vector3.one, DrawMinHandlesCap);
maxAnchor = Handles.FreeMoveHandle(obj.GetMaxAnchorCurrentWorldPosition(corners), Quaternion.identity, 3, Vector3.one, DrawMaxHandlesCap);
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(obj, "Anchors Positions Changed");
obj.minAnchor = new Vector2(
Mathf.Clamp01((corners[0].x - minAnchor.x) / (corners[0].x - corners[2].x)),
Mathf.Clamp01((corners[0].y - minAnchor.y) / (corners[0].y - corners[2].y)));
obj.maxAnchor = new Vector2(
Mathf.Clamp01((corners[0].x - maxAnchor.x) / (corners[0].x - corners[2].x)),
Mathf.Clamp01((corners[0].y - maxAnchor.y) / (corners[0].y - corners[2].y)));
obj.SetOffsets(corners);
}
}
}
