BORDER_WIDTH
BRect(BORDER_WIDTH - PEN_SIZE,
fpbitmap->Bounds().Width() + BORDER_WIDTH + PEN_SIZE,
DrawBitmap(fpbitmap, BPoint(BORDER_WIDTH, BORDER_HEIGHT));
range = rctbitmap.Width() + (BORDER_WIDTH * 2) - rctview.Width();
prop = rctview.Width() / (rctbitmap.Width() + (BORDER_WIDTH * 2));
width = fpbitmap->Bounds().Width() + B_V_SCROLL_BAR_WIDTH + (BORDER_WIDTH * 2);