float FalagardSlider::getValueFromThumb(void) const
{
// get area the thumb is supposed to use as it's area.
const WidgetLookFeel& wlf = WidgetLookManager::getSingleton().getWidgetLook(d_lookName);
Rect area(wlf.getNamedArea("ThumbTrackArea").getArea().getPixelRect(*this));
// get accesss to the thumb
Thumb* theThumb = static_cast<Thumb*>(WindowManager::getSingleton().getWindow(getName() + "__auto_thumb__"));
// slider is vertical
if (d_vertical)
{
// pixel extent of total available area the thumb moves in
float slideExtent = area.getHeight() - theThumb->getAbsoluteHeight();
// calculate value represented by current thumb position
float thumbValue = (theThumb->getAbsoluteYPosition() - area.d_top) / (slideExtent / d_maxValue);
// return final thumb value according to slider settings
return d_reversed ? thumbValue : d_maxValue - thumbValue;
}
// slider is horizontal
else
{
// pixel extent of total available area the thumb moves in
float slideExtent = area.getWidth() - theThumb->getAbsoluteWidth();
// calculate value represented by current thumb position
float thumbValue = (theThumb->getAbsoluteXPosition() - area.d_left) / (slideExtent / d_maxValue);
// return final thumb value according to slider settings
return d_reversed ? d_maxValue - thumbValue : thumbValue;
}
}
float FalagardScrollbar::getValueFromThumb(void) const
{
const WidgetLookFeel& wlf = WidgetLookManager::getSingleton().getWidgetLook(d_lookName);
Rect area(wlf.getNamedArea("ThumbTrackArea").getArea().getPixelRect(*this));
Thumb* theThumb = static_cast<Thumb*>(WindowManager::getSingleton().getWindow(getName() + "__auto_thumb__"));
float posExtent = d_documentSize - d_pageSize;
if (d_vertical)
{
float slideExtent = area.getHeight() - theThumb->getAbsoluteHeight();
return (theThumb->getAbsoluteYPosition() - area.d_top) / (slideExtent / posExtent);
}
else
{
float slideExtent = area.getWidth() - theThumb->getAbsoluteWidth();
return (theThumb->getAbsoluteXPosition() - area.d_left) / (slideExtent / posExtent);
}
}
