public override void CursorPressed(Mogre.Vector2 cursorPos)
{
Mogre.OverlayManager om = Mogre.OverlayManager.Singleton;
if (isExpanded)
{
if (scrollHandleElement.IsVisible) // check for scrolling
{
Mogre.Vector2 co = Widget.CursorOffset(scrollHandleElement, cursorPos);
if (co.SquaredLength <= 81f)
{
isDragging = true;
dragOffset = co.y;
return;
}
else if (Widget.IsCursorOver(scrollTrackElement, cursorPos))
{
float newTop = scrollHandleElement.Top + co.y;
float lowerBoundary = scrollTrackElement.Height - scrollHandleElement.Height;
scrollHandleElement.Top = (UIMathHelper.clamp <int>((int)newTop, 0, (int)lowerBoundary));
float scrollPercentage = UIMathHelper.clamp <float>(newTop / lowerBoundary, 0f, 1f);
setDisplayIndex((uint)(scrollPercentage * (Items.Count - itemElements.Count) + 0.5f));
return;
}
}
if (!IsCursorOver(expandedBoxElement, cursorPos, 3f))
{
retract();
}
else
{
float l = itemElements[0]._getDerivedLeft() * om.ViewportWidth + 5f;
float t = itemElements[0]._getDerivedTop() * om.ViewportHeight + 5f;
float r = l + itemElements[itemElements.Count - 1].Width - 10f;
float b = itemElements[itemElements.Count - 1]._getDerivedTop() * om.ViewportHeight + itemElements[itemElements.Count - 1].Height - 5;
if (cursorPos.x >= l && cursorPos.x <= r && cursorPos.y >= t && cursorPos.y <= b)
{
if (highlightIndex != selectionIndex)
{
SelectItem((uint)highlightIndex);
}
retract();
}
}
}
else
{
if (Items.Count < 2) // don't waste time showing a menu if there's no choice
{
return;
}
if (IsCursorOver(smallBoxElement, cursorPos, 4f))
{
expandedBoxElement.Show();
smallBoxElement.Hide();
// calculate how much vertical space we need
float idealHeight = itemsShown * (smallBoxElement.Height - 8f) + 20f;
expandedBoxElement.Height = (idealHeight);
scrollTrackElement.Height = (expandedBoxElement.Height - 20f);
expandedBoxElement.Left = (smallBoxElement.Left - 4f);
// if the expanded menu goes down off the screen, make it go up instead
if (smallBoxElement._getDerivedTop() * om.ViewportHeight + idealHeight > om.ViewportHeight)
{
expandedBoxElement.Top = (smallBoxElement.Top + smallBoxElement.Height - idealHeight + 3f);
// if we're in thick style, hide the caption because it will interfere with the expanded menu
if (textAreaElement.HorizontalAlignment == GuiHorizontalAlignment.GHA_CENTER)
{
textAreaElement.Hide();
}
}
else
{
expandedBoxElement.Top = (smallBoxElement.Top + 3f);
}
isExpanded = true;
highlightIndex = selectionIndex;
setDisplayIndex((uint)highlightIndex);
if (itemsShown < Items.Count) // update scrollbar position
{
scrollHandleElement.Show();
float lowerBoundary = scrollTrackElement.Height - scrollHandleElement.Height;
scrollHandleElement.Top = ((int)(displayIndex * lowerBoundary / (Items.Count - itemElements.Count)));
}
else
{
scrollHandleElement.Hide();
}
}
}
}
public void Hide()
{
_TextArea.Hide();
}
