private void picKeyboard_MouseDown(object sender, MouseEventArgs e)
{
mMouseDownPos = mCtrl.PointToClient(Cursor.Position);
var knobY = mMouseDownPos.Y / ChannelHeight;
var knobX = -1;
for (int i = 0; i < KnobPos.Length; i++)
{
var x = mMouseDownPos.X - KnobPos[i].X - 1.5;
var y = mMouseDownPos.Y - knobY * ChannelHeight - KnobPos[i].Y;
var r = Math.Sqrt(x * x + y * y);
if (r <= KnobRadius + 5)
{
knobX = i;
}
}
mIsDrag = 0 <= knobX;
mChannelNo = knobY;
if (MuteButton.X <= mMouseDownPos.X && mMouseDownPos.X < MuteButton.X + MuteButton.Width)
{
if (e.Button == MouseButtons.Right)
{
if (mPlayer.Channel(knobY).Enable)
{
for (int i = 0; i < 16; ++i)
{
if (knobY == i)
{
mSender.MuteChannel(i, true);
}
else
{
mSender.MuteChannel(i, false);
}
}
}
else
{
for (int i = 0; i < 16; ++i)
{
if (knobY == i)
{
mSender.MuteChannel(i, false);
}
else
{
mSender.MuteChannel(i, true);
}
}
}
}
else
{
mSender.MuteChannel(knobY, mPlayer.Channel(knobY).Enable);
}
}
mKnobNo = knobX;
}
