private void draw_grid(dom_model _dom_model, Graphics _gr)
{
_gr.DrawRectangles(m_ramka, _dom_model.AllRects);
for (var _level = 1; _level <= c_levels; ++_level)
{
var _lev_rc = _dom_model.Level(_level);
_gr.DrawLine(Pens.Black, _lev_rc.Location, PointF.Add(_lev_rc.Location, new SizeF(_lev_rc.Width, 0)));
}
}
private void draw_dom(DOMPrice[] asks, DOMPrice[] bids, Graphics graphics, Point _offset)
{
var _dom_model = new dom_model(graphics, m_my_font);
var _bmp = new Bitmap((int)_dom_model.FullRect.Width + 6, (int)_dom_model.FullRect.Height, graphics);
using (var _gr = Graphics.FromImage(_bmp))
{
draw_bg(_dom_model, _gr);
var _max_total_vol = max_volume;
draw_bids(bids, _dom_model, _gr, _max_total_vol);
draw_asks(asks, _dom_model, _gr, _max_total_vol);
draw_grid(_dom_model, _gr);
graphics.DrawImage(_bmp, _offset);
}
}
private void draw_bids(DOMPrice[] bids, dom_model _dom_model, Graphics _gr, double maxTotalVol)
{
const int _middle = c_levels / 2;
var _max_size = bids.Max(_1 => _1.Size);
for (var i = _middle; i < Math.Min(bids.Length + _middle, c_levels); ++i)
{
var _rc = _dom_model.Bid(i);
var _size = bids[i - _middle].Size;
draw_bg_gradientr2l(m_bid_clr, _gr, _rc, _max_size, _size);
_gr.DrawString(Volume2String(_size), m_my_font, i == _middle ? Brushes.White : Brushes.Black,
_rc, m_str_format);
var _rc_p = _dom_model.Price(i);
var _price = bids[i - _middle].Price;
draw_bg_gradientl2r(m_tot_vol_clr, _gr, _rc_p, maxTotalVol, get_volume_for_price(_price));
_gr.DrawString(Price2String(_price, m_price_format), m_my_font, Brushes.Black, _rc_p, m_str_format);
}
}
private void draw_asks(DOMPrice[] asks, dom_model _dom_model, Graphics _gr, double maxTotalVol)
{
const int _middle = c_levels / 2 - 1;
var _max_size = asks.Max(_1 => _1.Size);
for (var i = _middle; i > Math.Max(_middle - asks.Length, 0); --i)
{
var _rc = _dom_model.Ask(i);
var _size = asks[_middle - i].Size;
draw_bg_gradientl2r(m_ask_clr, _gr, _rc, _max_size, _size);
_gr.DrawString(Volume2String(_size), m_my_font, i == _middle ? Brushes.White : Brushes.Black,
_rc, m_str_format);
var _price = asks[_middle - i].Price;
var _rc_p = _dom_model.Price(i);
draw_bg_gradientl2r(m_tot_vol_clr, _gr, _rc_p, maxTotalVol, get_volume_for_price(_price));
_gr.DrawString(Price2String(_price, m_price_format), m_my_font, Brushes.Black, _rc_p, m_str_format);
}
}
private void draw_bg(dom_model _dom_model, Graphics _gr)
{
_gr.FillRectangle(m_bid_bg, _dom_model.BidRect);
_gr.FillRectangle(m_price_bg, _dom_model.PriceRect);
_gr.FillRectangle(m_ask_bg, _dom_model.AskRect);
}
