/// <summary>
/// 鼠标按下时的处理函数
/// </summary>
/// <param name="y"></param>
/// <param name="x"></param>
/// <returns></returns>
public int MouseDownAction(double y, double x)
{
int candidateidx = -1;
_activeROIIdx = -1;
//_epsilon *= HWndCtrller.ZoomWndFactor;
if (_ROIShape != null) //either a new ROI object is created，创建新的ROI
{
_ROIShape.CreateROI(y, x);
ROIList.Add(_ROIShape);
_ROIShape = null;
_activeROIIdx = ROIList.Count - 1;
HWndCtrller.Repaint(); //ROI--创建ROI,重新渲染图形
IconicUpdatedDel(EVENT_CREATED_ROI);
}
else if (ROIList.Count > 0) //an existing ROI object is manipulated,已有ROI
{
double[] distArr = new double[ROIList.Count];
double minvalue = 0;
int tmpIdx = -1;
for (int i = 0; i < ROIList.Count; i++)
{
distArr[i] = ((ROI)ROIList[i]).DistanceToClosestHandle(y, x);
}
Communal.Functions.MinValueAndIndex(distArr, out minvalue, out tmpIdx);
if (minvalue < _epsilon)
{
candidateidx = tmpIdx;
}
if (candidateidx >= 0)
{
_activeROIIdx = candidateidx;
IconicUpdatedDel(EVENT_ACTIVATED_ROI);
}
HWndCtrller.Repaint(); //ROI--激活ROI,重新渲染图形
} //没有ROI,也未创建ROI，则什么都不做
return(_activeROIIdx);
}
/// <summary>
/// 鼠标按下时的处理函数
/// </summary>
/// <param name="y"></param>
/// <param name="x"></param>
/// <returns></returns>
internal int MouseDownAction(HalconDotNet.HWindow window, double y, double x)
{
double epsilon = 35; //maximal shortest distance to one of the handles，距离最近操作柄最大距离值，超出该值表示未选中
int candidateidx = -1;
if (_ROIMode != null) //either a new ROI object is created，创建新的ROI
{
_ROIMode.CreateROI(window, y, x);
ROIList.Add(_ROIMode);
_ROIMode = null;
ActiveROIIndex = ROIList.Count - 1;
HWndCtrller.Repaint();
this.NotifyIconic(EVENT_CREATED_ROI);
}
else if (ROIList.Count > 0) //an existing ROI object is manipulated,已有ROI
{
ActiveROIIndex = -1;
double[] distArr = new double[ROIList.Count];
double minvalue = 0;
int tmpIdx = -1;
for (int i = 0; i < ROIList.Count; i++)
{
distArr[i] = ((ROI)ROIList[i]).DistanceToClosestHandle(y, x);
}
MinValueAndIndex(distArr, out minvalue, out tmpIdx);
if (minvalue < epsilon)
{
candidateidx = tmpIdx;
}
if (candidateidx >= 0)
{
ActiveROIIndex = candidateidx;
this.NotifyIconic(EVENT_ACTIVATED_ROI);
}
this.HWndCtrller.Repaint();
} //没有ROI,也未创建ROI，则什么都不做
return(ActiveROIIndex);
}