protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (m_selection != null)
{
Graphics dc = Graphics.FromHwnd(Handle);
m_selection.SetMousePoint(dc, new PointF(e.X, e.Y));
dc.Dispose();
return;
}
if (moving) //如果有选中的区域正在移动
{
Invalidate();
mr.moving(e.X - lastX, e.Y - lastY);
lastX = e.X;
lastY = e.Y;
}
if (ispaste) //如果有选中的区域正在移动
{
Invalidate();
pr.moving(e.X - lastX, e.Y - lastY);
lastX = e.X;
lastY = e.Y;
}
UnitPoint mousepoint;
if (m_commandType == eCommandType.draw || m_commandType == eCommandType.move || m_nodeMoveHelper.IsEmpty == false)
{
Rectangle invalidaterect = Rectangle.Empty;
ISnapPoint newsnap = null;
mousepoint = GetMousePoint();
if (RunningSnapsEnabled)
{
newsnap = m_model.SnapPoint(m_canvaswrapper, mousepoint, m_runningSnapTypes, null);
}
if (newsnap == null)
{
newsnap = m_model.GridLayer.SnapPoint(m_canvaswrapper, mousepoint, null);
}
if ((m_snappoint != null) && ((newsnap == null) || (newsnap.SnapPoint != m_snappoint.SnapPoint) || m_snappoint.GetType() != newsnap.GetType()))
{
invalidaterect = ScreenUtils.ConvertRect(ScreenUtils.ToScreenNormalized(m_canvaswrapper, m_snappoint.BoundingRect));
invalidaterect.Inflate(2, 2);
RepaintStatic(invalidaterect); // remove old snappoint
m_snappoint = newsnap;
}
//if (m_commandType == eCommandType.move)
// Invalidate(invalidaterect);
if (m_snappoint == null)
{
m_snappoint = newsnap;
}
}
//////////////////////////////////////////////////////////////////////////
//UnitPoint mousepoint;
if (m_snappoint != null)
{
mousepoint = m_snappoint.SnapPoint;
}
else
{
mousepoint = GetMousePoint();
}
if (m_newObject != null)
{
Rectangle invalidaterect = ScreenUtils.ConvertRect(ScreenUtils.ToScreenNormalized(m_canvaswrapper, m_newObject.GetBoundingRect(m_canvaswrapper)));
invalidaterect.Inflate(2, 2);
RepaintStatic(invalidaterect);
m_newObject.OnMouseMove(m_canvaswrapper, mousepoint);
RepaintObject(m_newObject);
}
if (m_snappoint != null)
{
RepaintSnappoint(m_snappoint);
}
/*
* if (m_moveHelper.HandleMouseMoveForMove(mousepoint))
* Refresh(); //Invalidate();
*
* RectangleF rNoderect = m_nodeMoveHelper.HandleMouseMoveForNode(mousepoint);
*
* if (rNoderect != RectangleF.Empty)
* {
*
* Rectangle invalidaterect = ScreenUtils.ConvertRect(ScreenUtils.ToScreenNormalized(m_canvaswrapper, rNoderect));
* RepaintStatic(invalidaterect);
*
* CanvasWrapper dc = new CanvasWrapper(this, Graphics.FromHwnd(Handle), ClientRectangle);
* dc.Graphics.Clip = new Region(ClientRectangle);
* //m_nodeMoveHelper.DrawOriginalObjects(dc, rNoderect);
* m_nodeMoveHelper.DrawObjects(dc, rNoderect);
* if (m_snappoint != null)
* RepaintSnappoint(m_snappoint);
*
* dc.Graphics.Dispose();
* dc.Dispose();
* }
*/
}
