private void UpdateSelectionGizmo(WSceneView view)
{
if (!m_transformGizmo.Enabled && m_selectionList.Count > 0)
{
// Show the Transform Gizmo.
m_transformGizmo.Enabled = true;
m_transformGizmo.SetPosition(m_selectionList[0].Transform.Position);
m_transformGizmo.SetLocalRotation(m_selectionList[0].Transform.Rotation);
}
else if (m_transformGizmo.Enabled && m_selectionList.Count == 0)
{
// Hide the Transform Gizmo.
m_transformGizmo.Enabled = false;
}
if (!m_transformGizmo.Enabled)
{
return;
}
if (WInput.GetKeyDown(Key.Q) && !WInput.GetMouseButton(1))
{
m_transformGizmo.SetMode(FTransformMode.None);
}
if (WInput.GetKeyDown(Key.W) && !WInput.GetMouseButton(1))
{
m_transformGizmo.SetMode(FTransformMode.Translation);
}
if (WInput.GetKeyDown(Key.E) && !WInput.GetMouseButton(1))
{
m_transformGizmo.SetMode(FTransformMode.Rotation);
}
if (WInput.GetKeyDown(Key.R) && !WInput.GetMouseButton(1))
{
m_transformGizmo.SetMode(FTransformMode.Scale);
}
if (WInput.GetKeyDown(Key.OemOpenBrackets))
{
m_transformGizmo.DecrementSize();
}
if (WInput.GetKeyDown(Key.OemCloseBrackets))
{
m_transformGizmo.IncrementSize();
}
if (WInput.GetKeyDown(Key.OemTilde))
{
if (m_transformGizmo.TransformSpace == FTransformSpace.World)
{
m_transformGizmo.SetTransformSpace(FTransformSpace.Local);
}
else
{
m_transformGizmo.SetTransformSpace(FTransformSpace.World);
}
UpdateGizmoTransform();
}
if (WInput.GetMouseButtonDown(0))
{
FRay mouseRay = view.ProjectScreenToWorld(WInput.MousePosition);
if (m_transformGizmo.CheckSelectedAxes(mouseRay))
{
m_transformGizmo.StartTransform();
}
}
if (WInput.GetMouseButtonUp(0))
{
if (m_transformGizmo.IsTransforming)
{
// When we end let go of the gizmo, we want to make one last action which specifies that it is done,
// so that the next gizmo move doesn't merge with the previous.
WUndoCommand undoAction = CreateUndoActionForGizmo(true);
if (undoAction != null)
{
m_world.UndoStack.Push(undoAction);
}
m_transformGizmo.EndTransform();
}
}
if (m_transformGizmo.IsTransforming)
{
FRay mouseRay = view.ProjectScreenToWorld(WInput.MousePosition);
if (m_transformGizmo.TransformFromInput(mouseRay, view))
{
WUndoCommand undoAction = CreateUndoActionForGizmo(false);
if (undoAction != null)
{
m_world.UndoStack.Push(undoAction);
}
}
}
m_transformGizmo.UpdateForSceneView(view);
}
