bool CGUISliderControl::ProcessSelector(CGUITexture &nib, unsigned int currentTime, float fScaleY, RangeSelector selector)
{
bool dirty = false;
// we render the nib centered at the appropriate percentage, except where the nib
// would overflow the background image
dirty |= nib.SetHeight(nib.GetTextureHeight() * fScaleY);
dirty |= nib.SetWidth(nib.GetHeight() * 2);
CAspectRatio ratio(CAspectRatio::AR_KEEP);
ratio.align = ASPECT_ALIGN_LEFT | ASPECT_ALIGNY_CENTER;
dirty |= nib.SetAspectRatio(ratio);
dirty |= nib.Process(currentTime);
CRect rect = nib.GetRenderRect();
float offset = GetProportion(selector) * m_width - rect.Width() / 2;
if (offset > m_width - rect.Width())
offset = m_width - rect.Width();
if (offset < 0)
offset = 0;
dirty |= nib.SetPosition(m_guiBackground.GetXPosition() + offset, m_guiBackground.GetYPosition());
dirty |= nib.Process(currentTime); // need to process again as the position may have changed
return dirty;
}
