/// <span class="code-SummaryComment"><summary></span>
/// Releases the mouse, and raises the CropImage Event
/// <span class="code-SummaryComment"></summary></span>
protected override void OnMouseLeftButtonUp(MouseButtonEventArgs e)
{
base.OnMouseLeftButtonUp(e);
if (this.IsMouseCaptured)
{
DisplayCanvasEventArgs args;
switch (m_mode)
{
case DisplayCanvasModeID.FocusPoint:
args = new DisplayCanvasEventArgs(DisplayCanvasEventID.FocusPointed);
args.clip.X = (int)e.GetPosition(this).X;
args.clip.Y = (int)e.GetPosition(this).Y;
RunEvent(this, args);
break;
case DisplayCanvasModeID.BoxCreate:
args = new DisplayCanvasEventArgs(DisplayCanvasEventID.NodeCreated);
args.clip = rubber.GetClientRect();
args.HasBox = true;
RunEvent(this, args);
break;
case DisplayCanvasModeID.BoxUpdate:
if (anchors.activeAnchorID != AnchorID.None)
{
args = new DisplayCanvasEventArgs(DisplayCanvasEventID.NodeUpdated);
args.clip = rubber.GetClientRect();
args.HasBox = true;
rubber.ReInit(); // Фиксируем изменения рамки
}
else
{
// Нажали мимо рамки - потеря фокуса
args = new DisplayCanvasEventArgs(DisplayCanvasEventID.FocusPointed);
args.clip.X = (int)e.GetPosition(this).X;
args.clip.Y = (int)e.GetPosition(this).Y;
args.HasBox = false;
}
RunEvent(this, args);
break;
case DisplayCanvasModeID.Passive:
case DisplayCanvasModeID.Disabled:
break;
default:
throw new Exception("Unsupported canvas mode detected!");
}
this.ReleaseMouseCapture();
}
}
/// <span class="code-SummaryComment"><summary></span>
/// <summary>
/// Raised by the <span class="code-SummaryComment"><see cref="selectionCanvas">selectionCanvas</see></span>
/// when the new crop shape (rectangle) has been drawn. This event
/// then replaces the current selectionCanvas with a
// <see cref="DragCanvas">DragCanvas</see>
/// which can then be used to drag the crop area around
/// within a Canvas
/// </summary>
private void OnCanvasEvent(object sender, DisplayCanvasEventArgs args)
{
// Вызываем внешний обработчик события
args.ControlID = m_controlID;
RunCanvasEvent(this, args);
}