internal static Task <Rect> Select(SelectControl2.ModeType mode, Rect previousRegion)
{
_taskCompletionSource = new TaskCompletionSource <Rect>();
Selectors.Clear();
foreach (var monitor in Monitor.AllMonitorsGranular())
{
var selector = new RegionSelector();
selector.Select(monitor, mode, previousRegion, RegionSelected, RegionChanged, RegionAborted);
Selectors.Add(selector);
}
//Return only when the region gets selected.
return(_taskCompletionSource.Task);
}
public void Select(Monitor monitor, SelectControl2.ModeType mode, Rect previousRegion, Action <Rect> selected, Action <Monitor> changed, Action aborted)
{
//Resize to fit given window.
Left = monitor.Bounds.Left;
Top = monitor.Bounds.Top;
Width = monitor.Bounds.Width;
Height = monitor.Bounds.Height;
Monitor = monitor;
_scale = monitor.Dpi / 96d;
_selected = selected;
_changed = changed;
_aborted = aborted;
SelectControl.BackImage = CaptureBackground();
SelectControl.Mode = mode;
if (mode == SelectControl2.ModeType.Region)
{
//Since each region selector is attached to a single screen, the selection must be translated.
if (!previousRegion.IsEmpty)
{
previousRegion.Offset(monitor.Bounds.Left * -1, monitor.Bounds.Right * -1);
}
SelectControl.Selected = previousRegion;
SelectControl.Windows.Clear();
}
else if (mode == SelectControl2.ModeType.Window)
{
var win = Native.EnumerateWindows();
//Take into consederation each screen dpi.
//Adjust the position of the window.
SelectControl.Windows = win.AdjustPosition(monitor.Bounds.Left, monitor.Bounds.Top);
}
//Call the selector to select the region.
SelectControl.IsPickingRegion = true;
Show();
}
