private void SkinMouseWheelHandler(Event e)
{
MouseEvent me = (MouseEvent)e;
IViewport vp = Viewport;
if (e.DefaultPrevented || null == vp || !vp.Visible)
{
return;
}
var delta = me.CurrentEvent.delta.y;
int nSteps = (int)Math.Abs(delta);
NavigationUnit navigationUnit;
// Scroll event.delta "steps". If the VSB is up, scroll vertically,
// if -only- the HSB is up then scroll horizontally.
if (null != VerticalScrollBar && VerticalScrollBar.Visible)
{
navigationUnit = (delta < 0) ? NavigationUnit.Down : NavigationUnit.Up;
for (int vStep = 0; vStep < nSteps; vStep++)
{
float?vspDelta = vp.GetVerticalScrollPositionDelta(navigationUnit);
//if (null != vspDelta)
vp.VerticalScrollPosition += (float)vspDelta;
}
e.PreventDefault();
}
else if (null != HorizontalScrollBar && HorizontalScrollBar.Visible)
{
navigationUnit = (delta < 0) ? NavigationUnit.Right : NavigationUnit.Left;
for (int hStep = 0; hStep < nSteps; hStep++)
{
float hspDelta = vp.GetHorizontalScrollPositionDelta(navigationUnit);
//if (null != hspDelta)
vp.HorizontalScrollPosition += hspDelta;
}
e.PreventDefault();
}
}
private void MouseWheelHandler(Event e)
{
//Debug.Log("VScrollBar->MouseWheelHandler: " + e.Target);
IViewport vp = Viewport;
if (e.DefaultPrevented || null == vp || !vp.Visible)
{
return;
}
/* If the scrollbar is a part of the scroller, but is not visible, do not process mouse wheel
* this way we are giving a chance for the horizontal scroll to work */
if (!Visible)
{
return;
}
MouseEvent me = (MouseEvent)e;
//Debug.Log(me.CurrentEvent.delta.y);
var delta = me.CurrentEvent.delta.y;
int nSteps = (int)Math.Abs(delta);
//Debug.Log("MouseWheelHandler. delta: " + delta);
// Scroll event.delta "steps".
nSteps = 1; // TEMP
NavigationUnit navigationUnit = (delta > 0) ? NavigationUnit.Down : NavigationUnit.Up;
for (int vStep = 0; vStep < nSteps; vStep++)
{
//Debug.Log("vStep: " + vStep);
float vspDelta = vp.GetVerticalScrollPositionDelta(navigationUnit);
//Debug.Log(" vspDelta: " + vspDelta);
//if (null != vspDelta)
vp.VerticalScrollPosition += vspDelta;
}
e.PreventDefault();
}