static public void DoGrid(this WidgetMidiList widget, FloatRect grid, Graphics g)
{
var gs = g.Save();
using (g.Clip = new Region(grid))
{
using (var p0 = new Pen(Color.Black)) foreach (var i in widget.GetHLines(4))
{
g.DrawLines(p0, new Point[] { new FloatPoint(i.XO, grid.Top), new FloatPoint(i.XO, grid.Bottom) });
}
using (var p1 = new Pen(Gray130)) foreach (var i in widget.GetHLines(Convert.ToInt32(Math.Pow(4, 2))))
{
g.DrawLines(p1, new Point[] { new FloatPoint(i.XO, grid.Top), new FloatPoint(i.XO, grid.Bottom) });
}
using (var p2 = new Pen(White)) foreach (var i in widget.GetHLines(Convert.ToInt32(Math.Pow(4, 3))))
{
g.DrawLines(p2, new Point[] { new FloatPoint(i.XO, grid.Top), new FloatPoint(i.XO, grid.Bottom) });
}
g.ResetClip();
}
g.Restore(gs);
}
static public void DoVKeys(this WidgetMidiList widget, FloatRect grid, Graphics g)
{
var gs = g.Save();
// Vertical
using (var linePen = new Pen(Color.Blue, 1)) foreach (var row in widget.GetVLines(widget.LineOffset))
{
var r = new FloatRect(widget.Container.X + 12, row.Top, widget.WidthGutter, widget.LineHeight);
if (row.CanDo)
{
// Note-Number + Piano-KeyName
var str = string.Format("{0:00#} {1,-3}", row.RowIndex, MKeys[row.RowIndex]);
// create rect, then move x/y and shrinks w/h by one pixel.
var rc = new FloatRect(grid.Left, row.Top, grid.Width, widget.LineHeight).Shrink(1);
using (var sb = new SolidBrush(Color.FromArgb(24, row.IsIvory ? Color.White : Color.Black)))
if (row.IsIvory)
{
g.FillRectangle(sb, rc);
}
var r2 = r.Clone();
r2.Location = r2.Location.NegX(10);
g.DrawText(str, Color.White, widget.Font, r2, StringAlignment.Near);
}
}
g.Restore(gs);
}
static public void DoNoteIds(this WidgetMidiList widget, FloatRect grid, Graphics g)
{
var gs = g.Save();
using (g.Clip = new Region(grid))
{
foreach (var i in widget.GetHLines(Convert.ToInt32(Math.Pow(4, 2))))
{
var r2 = new FloatRect(i.XO - 16, grid.Top, 32, 24);
g.FillEllipse(Brushes.Black, r2);
g.DrawText((i.Index / 4).ToString(), Color.White, widget.Font, r2);
}
foreach (var i in widget.GetHLines(Convert.ToInt32(Math.Pow(4, 3))))
{
var r2 = new FloatRect(i.XO - 16, grid.Top + 32, 32, 24);
g.FillEllipse(Brushes.Black, r2);
g.DrawText((i.Index / 64).ToString(), Color.White, widget.Font, r2);
}
g.ResetClip();
}
g.Restore(gs);
}