private static void UpdateControl(Control control, ITrackItem item, TrackView trackView)
{
control.Left = (int)Math.Round(trackView.Width * (item.Start / trackView.Length));
control.Width = (int)Math.Round(trackView.Width * (item.Length / trackView.Length));
control.Top = item.Track * trackView.GetTrackHeight();
control.Text = item.Label;
}
private static void UpdateItem(Control control, ITrackItem item, TrackView trackView)
{
item.Label = control.Text;
item.Start = control.Left * trackView.Length / trackView.Width;
item.Length = control.Width * trackView.Length / trackView.Width;
item.Track = control.Top / trackView.GetTrackHeight();
}
private static void Init(Control control, TrackView trackView, ITrackItem item)
{
bool Dragging = false;
Point DragStart = Point.Empty;
control.MouseDown += delegate(object sender, MouseEventArgs e)
{
Dragging = true;
DragStart = e.Location;
control.Capture = true;
};
control.MouseUp += delegate(object sender, MouseEventArgs e)
{
Dragging = false;
control.Capture = false;
};
control.MouseMove += delegate(object sender, MouseEventArgs e)
{
if (Dragging)
{
//left min
var left = Math.Max(0, e.X + control.Left - DragStart.X);
//left max
left = Math.Min(left, trackView.Width - control.Width);
control.Left = left;
//top min
var top = Math.Max(0, e.Y + control.Top - DragStart.Y);
//top max
top = Math.Min(top, trackView.Height - control.Height);
//top in track granularity
control.Top = (top / trackView.GetTrackHeight()) * trackView.GetTrackHeight();
UpdateItem(control, item, trackView);
}
};
}
private static void UpdateItem(Control control, ITrackItem item, TrackView trackView)
{
item.Label = control.Text;
item.Start = control.Left * trackView.Length / trackView.Width;
item.Length = control.Width * trackView.Length / trackView.Width;
item.Track = control.Top / trackView.GetTrackHeight();
}
private static void UpdateControl(Control control, ITrackItem item, TrackView trackView)
{
control.Left = (int)Math.Round(trackView.Width * (item.Start / trackView.Length));
control.Width = (int)Math.Round(trackView.Width * (item.Length / trackView.Length));
control.Top = item.Track * trackView.GetTrackHeight();
control.Text = item.Label;
}
private static void Init(Control control, TrackView trackView, ITrackItem item)
{
bool Dragging = false;
Point DragStart = Point.Empty;
control.MouseDown += delegate (object sender, MouseEventArgs e)
{
Dragging = true;
DragStart = e.Location;
control.Capture = true;
};
control.MouseUp += delegate (object sender, MouseEventArgs e)
{
Dragging = false;
control.Capture = false;
};
control.MouseMove += delegate (object sender, MouseEventArgs e)
{
if (Dragging)
{
//left min
var left = Math.Max(0, e.X + control.Left - DragStart.X);
//left max
left = Math.Min(left, trackView.Width - control.Width);
control.Left = left;
//top min
var top = Math.Max(0, e.Y + control.Top - DragStart.Y);
//top max
top = Math.Min(top, trackView.Height - control.Height);
//top in track granularity
control.Top = (top / trackView.GetTrackHeight()) * trackView.GetTrackHeight();
UpdateItem(control, item, trackView);
}
};
}
public TrackItemVisual(TrackView trackView, ITrackItem trackItem)
{
this.trackView = trackView;
TrackItem = trackItem;
BackColor = trackView.NewColor();
Parent = trackView;
Init(this, trackView, trackItem);
UpdateControl(this, trackItem, trackView);
}
public TrackItemVisual(TrackView trackView, ITrackItem trackItem)
{
this.trackView = trackView;
TrackItem = trackItem;
BackColor = trackView.NewColor();
Parent = trackView;
Init(this, trackView, trackItem);
UpdateControl(this, trackItem, trackView);
}