public void Update()
{
if (!m_State.isDragging)
{
PickingHit hit;
ScreenPickingUtility.GetHovered(
handles,
Input.mousePosition,
camera,
k_PickingDistance,
out hit);
m_State.SetHovered(GetHandle(hit.target));
m_State.Update(HandleUtility.ProjectScreenPositionOnHandle(
m_State.activeHandle,
Input.mousePosition,
camera));
}
else
{
m_State.Update(HandleUtility.ProjectScreenPositionOnHandle(
m_State.activeHandle,
Input.mousePosition,
camera));
}
if (Input.GetMouseButtonDown(0))
{
m_State.StartDrag(HandleUtility.ProjectScreenPositionOnHandle(
m_State.activeHandle,
Input.mousePosition,
camera));
}
else if (Input.GetMouseButtonUp(0))
{
m_State.StopDrag();
}
}
internal void OnGUI(EditorWindow window, Rect rect, Event evt)
{
if (window == null)
{
return;
}
Assert.IsNotNull(window, "Cannot draw a Editor Window Context with a null window.");
Assert.IsNotNull(evt, "IMGUIController.OnGUI cannot be called outside an OnGUI method");
camera = Camera.current;
var id = GUIUtility.GetControlID(FocusType.Passive);
switch (evt.GetTypeForControl(id))
{
case EventType.Layout:
ScreenPickingUtility.GetHovered(
handles,
GetMousePosition(evt, rect),
camera,
k_PickingDistance,
out s_Hit);
HandleUtility.AddControl(id, s_Hit.distance);
break;
case EventType.MouseMove:
//Verify that no unity control is currently considered nearest.
//We also set hovered if nearest control is 0 because the unity picking distance might not be the same as this context.
if (HandleUtility.nearestControl == id || HandleUtility.nearestControl == 0)
{
m_State.SetHovered(GetHandle(s_Hit.target));
}
else
{
m_State.SetHovered(null);
}
if (m_State.activeHandle)
{
m_State.Update(MARSHandles.HandleUtility.ProjectScreenPositionOnHandle(
m_State.activeHandle,
GetMousePosition(evt, rect),
camera));
window.Repaint();
}
break;
case EventType.MouseDown:
if (evt.button != 0)
{
break;
}
if (m_State.StartDrag(MARSHandles.HandleUtility.ProjectScreenPositionOnHandle(
m_State.activeHandle,
GetMousePosition(evt, rect),
camera)))
{
GUIUtility.hotControl = id;
evt.Use();
}
break;
case EventType.MouseUp:
if (m_State.StopDrag())
{
GUIUtility.hotControl = 0;
evt.Use();
}
break;
case EventType.MouseDrag:
if (GUIUtility.hotControl == id)
{
m_State.Update(MARSHandles.HandleUtility.ProjectScreenPositionOnHandle(
m_State.activeHandle,
GetMousePosition(evt, rect),
camera));
ToolsUtility.InvalidateHandlePosition();
evt.Use();
}
break;
case EventType.Repaint:
Repaint(rect);
break;
}
}
