List<Selector> GetVisibleSelectors()
{
var ret = new List<Selector>();
var chord = SelectedChord;
if ((SelectedChord != null && SelectedChord.IsDeleted) || chord == null || chord.HasNotes == false)
return ret;
Point p = PointToClient(MousePosition);
var minMaxY = GetChordYMinMax(chord);
var start = GetClientPointFromTick(chord.DownTick);
var end = GetClientPointFromTick(chord.UpTick);
var chordScreen = new Rectangle(start, minMaxY.X, end - start, minMaxY.Y - minMaxY.X);
var distC = p.Distance(chordScreen);
if (distC <= Utility.ShowSelectorDist)
{
for (int sl = 0; sl < 2; sl++)
{
var selector = new Rectangle(
chordScreen.X,
chordScreen.Top,
Utility.SelectorWidth,
chordScreen.Height);
Point startPos;
if (sl == 0)
{
selector.X += chordScreen.Width - Utility.SelectorWidth;
startPos = new Point(
chordScreen.Right - selector.Width,
chordScreen.Top);
}
else
{
startPos = new Point(chordScreen.X,
chordScreen.Top);
}
var sel = new Selector()
{
StartPoint = startPos,
CurrentPoint = startPos,
Chord = SelectedChord,
IsRight = sl == 0
};
Rectangle r = sel.GetCurrentRect(this);
var dist = p.Distance(r);
sel.IsMouseOver = false;
if (dist <= Utility.ShowSelectorDist)
{
sel.IsMouseNear = true;
if (r.Contains(p))
{
sel.IsMouseOver = true;
}
}
ret.Add(sel);
}
}
return ret;
}
void DrawSelector(Graphics g,
Selector sel)
{
var c = Utility.noteBGBrushSel.Color;
var color = Color.FromArgb(40, 80, 40);
if (sel == null || sel.Chord.HasNotes == false)
return;
var trans = sel.IsMouseOver ? 205 : sel.IsMouseNear ? 120 : 80;
var r = sel.GetCurrentRect(this);
using (Pen pn = new Pen(Color.FromArgb(trans, color), 1.0f))
{
int w = 3;
if (sel.IsMouseOver == false)
w = 2;
for (int j = 0; j < w; j++)
{
Point[] p = new Point[2];
if (sel.IsRight)
{
p[0] = new Point(
r.X + Utility.SelectorWidth - 1 + j,
r.Y - 1);
p[1] = new Point(
r.X + Utility.SelectorWidth - 1 + j,
r.Y + r.Height + 2);
}
else
{
p[0] = new Point(
r.X - 1 + j,
r.Y - 1);
p[1] = new Point(
r.X - 1 + j,
r.Y + r.Height + 2);
}
g.DrawLine(pn, p[0], p[1]);
}
g.DrawLine(pn,
r.X,
r.Y - 1,
r.X + r.Width,
r.Y - 2);
g.DrawLine(pn,
r.X,
r.Y + r.Height + 2,
r.X + r.Width,
r.Y + r.Height + 2);
}
}