float FalagardSlider::getValueFromThumb(void) const
{
Slider* w = (Slider*)d_window;
// get area the thumb is supposed to use as it's area.
const WidgetLookFeel& wlf = getLookNFeel();
const Rectf area(wlf.getNamedArea("ThumbTrackArea").getArea().getPixelRect(*w));
// get accesss to the thumb
Thumb* theThumb = w->getThumb();
// slider is vertical
if (d_vertical)
{
// pixel extent of total available area the thumb moves in
float slideExtent = area.getHeight() - theThumb->getPixelSize().d_height;
// calculate value represented by current thumb position
float thumbValue = (CoordConverter::asAbsolute(
theThumb->getYPosition(), w->getPixelSize().d_height) - area.top()) / (slideExtent / w->getMaxValue());
// return final thumb value according to slider settings
return d_reversed ? thumbValue : w->getMaxValue() - thumbValue;
}
// slider is horizontal
else
{
// pixel extent of total available area the thumb moves in
float slideExtent = area.getWidth() - theThumb->getPixelSize().d_width;
// calculate value represented by current thumb position
float thumbValue = (CoordConverter::asAbsolute(
theThumb->getXPosition(), w->getPixelSize().d_width) - area.left()) / (slideExtent / w->getMaxValue());
// return final thumb value according to slider settings
return d_reversed ? w->getMaxValue() - thumbValue : thumbValue;
}
}
float FalagardScrollbar::getValueFromThumb(void) const
{
Scrollbar* w = (Scrollbar*)d_window;
const WidgetLookFeel& wlf = getLookNFeel();
const Rectf area(wlf.getNamedArea("ThumbTrackArea").getArea().getPixelRect(*w));
Thumb* theThumb = w->getThumb();
float posExtent = w->getDocumentSize() - w->getPageSize();
if (d_vertical)
{
float slideExtent = area.getHeight() - theThumb->getPixelSize().d_height;
return (CoordConverter::asAbsolute(theThumb->getYPosition(), w->getPixelSize().d_height) - area.top()) / (slideExtent / posExtent);
}
else
{
float slideExtent = area.getWidth() - theThumb->getPixelSize().d_width;
return (CoordConverter::asAbsolute(theThumb->getXPosition(), w->getPixelSize().d_width) - area.left()) / (slideExtent / posExtent);
}
}
