public void OnGUI(Event evt)
{
if (evt.type != EventType.Layout)
{
return;
}
var hFactor = 0.0f;
var vFactor = 0.0f;
bool horizontalPan = GetPanFactor(evt.mousePosition.x, m_ViewRect.xMin, m_ViewRect.xMax, out hFactor);
bool verticalPan = GetPanFactor(evt.mousePosition.y, m_ViewRect.yMin, m_ViewRect.yMax, out vFactor);
if (horizontalPan)
{
var translation = m_State.timeAreaTranslation;
translation.x += hFactor * k_MaxPanSpeed;
m_State.SetTimeAreaTransform(translation, m_State.timeAreaScale);
}
if (verticalPan)
{
var translation = m_Window.treeView.scrollPosition;
translation.y -= vFactor * k_MaxPanSpeed;
m_Window.treeView.scrollPosition = translation;
}
}