IntRect RenderScrollbar::trackPieceRectWithMargins(ScrollbarPart partType, const IntRect& oldRect)
{
RenderScrollbarPart* partRenderer = m_parts.get(partType);
if (!partRenderer)
return oldRect;
partRenderer->layout();
IntRect rect = oldRect;
if (orientation() == HorizontalScrollbar) {
rect.setX(rect.x() + partRenderer->marginLeft());
rect.setWidth(rect.width() - (partRenderer->marginLeft() + partRenderer->marginRight()));
} else {
rect.setY(rect.y() + partRenderer->marginTop());
rect.setHeight(rect.height() - (partRenderer->marginTop() + partRenderer->marginBottom()));
}
return rect;
}
IntRect RenderScrollbar::trackRect(int startLength, int endLength)
{
RenderScrollbarPart* part = m_parts.get(TrackBGPart);
if (part)
part->layout();
if (orientation() == HorizontalScrollbar) {
int marginLeft = part ? part->marginLeft() : 0;
int marginRight = part ? part->marginRight() : 0;
startLength += marginLeft;
endLength += marginRight;
int totalLength = startLength + endLength;
return IntRect(x() + startLength, y(), width() - totalLength, height());
}
int marginTop = part ? part->marginTop() : 0;
int marginBottom = part ? part->marginBottom() : 0;
startLength += marginTop;
endLength += marginBottom;
int totalLength = startLength + endLength;
return IntRect(x(), y() + startLength, width(), height() - totalLength);
}