/*************************************************************************
Return a ColourRect object describing the colours in 'cols' after
having their alpha component modulated by the value 'alpha'.
*************************************************************************/
ColourRect ListboxItem::getModulateAlphaColourRect(const ColourRect& cols, float alpha) const
{
return ColourRect
(
calculateModulatedAlphaColour(cols.d_top_left, alpha),
calculateModulatedAlphaColour(cols.d_top_right, alpha),
calculateModulatedAlphaColour(cols.d_bottom_left, alpha),
calculateModulatedAlphaColour(cols.d_bottom_right, alpha)
);
}
/*************************************************************************
update the internal RenderableFrame with currently set colours and
alpha settings.
*************************************************************************/
void Static::updateRenderableFrameColours(void)
{
float alpha = getEffectiveAlpha();
d_frame.setColours(
calculateModulatedAlphaColour(d_frameCols.d_top_left, alpha),
calculateModulatedAlphaColour(d_frameCols.d_top_right, alpha),
calculateModulatedAlphaColour(d_frameCols.d_bottom_left, alpha),
calculateModulatedAlphaColour(d_frameCols.d_bottom_right, alpha)
);
}
