/// <summary>
/// Calculate the combined bounds of all widgets attached to the specified game object or its children (in relative-to-object space).
/// </summary>
static public Bounds CalculateRelativeWidgetBounds (Transform relativeTo, Transform content, ConsiderActiveType considerActiveType)
{
if (content != null && relativeTo != null)
{
bool isSet = false;
Matrix4x4 toLocal = relativeTo.worldToLocalMatrix;
Vector3 min = new Vector3(float.MaxValue, float.MaxValue, float.MaxValue);
Vector3 max = new Vector3(float.MinValue, float.MinValue, float.MinValue);
CalculateRelativeWidgetBounds(content, considerActiveType, true, ref toLocal, ref min, ref max, ref isSet);
if (isSet)
{
Bounds b = new Bounds(min, Vector3.zero);
b.Encapsulate(max);
return b;
}
}
return new Bounds(Vector3.zero, Vector3.zero);
}
static void CalculateRelativeWidgetBounds (Transform content, ConsiderActiveType considerActiveType, bool isRoot,
ref Matrix4x4 toLocal, ref Vector3 vMin, ref Vector3 vMax, ref bool isSet)
{
if (content == null) return;
if (considerActiveType == ConsiderActiveType.activeInHierarchy)
{
if (!NGUITools.GetActive(content.gameObject))
return;
}
else if (considerActiveType == ConsiderActiveType.activeSelf)
{
if (!NGUITools.GetActiveSelf(content.gameObject))
return;
}
if (content.GetComponent<UINoBounds>() != null) return;
// If this isn't a root node, check to see if there is a panel present
UIPanel p = isRoot ? null : content.GetComponent<UIPanel>();
// Ignore disabled panels as a disabled panel means invisible children
if (p != null && !p.enabled) return;
// If there is a clipped panel present simply include its dimensions
if (p != null && p.clipping != UIDrawCall.Clipping.None)
{
Vector3[] corners = p.worldCorners;
for (int j = 0; j < 4; ++j)
{
Vector3 v = toLocal.MultiplyPoint3x4(corners[j]);
if (v.x > vMax.x) vMax.x = v.x;
if (v.y > vMax.y) vMax.y = v.y;
if (v.z > vMax.z) vMax.z = v.z;
if (v.x < vMin.x) vMin.x = v.x;
if (v.y < vMin.y) vMin.y = v.y;
if (v.z < vMin.z) vMin.z = v.z;
isSet = true;
}
}
else // No panel present
{
// If there is a widget present, include its bounds
UIWidget w = content.GetComponent<UIWidget>();
if (w != null && w.enabled)
{
Vector3[] corners = w.worldCorners;
for (int j = 0; j < 4; ++j)
{
Vector3 v = toLocal.MultiplyPoint3x4(corners[j]);
if (v.x > vMax.x) vMax.x = v.x;
if (v.y > vMax.y) vMax.y = v.y;
if (v.z > vMax.z) vMax.z = v.z;
if (v.x < vMin.x) vMin.x = v.x;
if (v.y < vMin.y) vMin.y = v.y;
if (v.z < vMin.z) vMin.z = v.z;
isSet = true;
}
}
// Iterate through children including their bounds in turn
for (int i = 0, imax = content.childCount; i < imax; ++i)
CalculateRelativeWidgetBounds(content.GetChild(i), considerActiveType, false, ref toLocal, ref vMin, ref vMax, ref isSet);
}
}
/// <summary>
/// Calculate the combined bounds of all widgets attached to the specified game object or its children (in relative-to-object space).
/// </summary>
static public Bounds CalculateRelativeWidgetBounds (Transform trans, ConsiderActiveType considerActiveType)
{
return CalculateRelativeWidgetBounds(trans, trans, considerActiveType);
}