/// <summary>
/// 根据转换后的坐标位置查找转换信息对象
/// </summary>
/// <param name="x">点X坐标</param>
/// <param name="y">点Y坐标</param>
/// <param name="compatibility">是否启用兼容模式。若启用兼容模式，
/// 如果没有找到和指定点精确匹配的坐标转换信息对象，
/// 则尽量查找距离点最近的坐标转换信息对象</param>
/// <param name="onlyIncludeEnabledItem">只对可用的对象进行处理</param>
/// <param name="useSourceRect">模式，True:匹配源矩形；False:匹配目标矩形。</param>
/// <returns>找到的坐标转换信息对象</returns>
public SimpleRectangleTransform GetItemByPoint(
float x,
float y,
bool useSourceRect,
bool compatibility,
bool onlyIncludeEnabledItem)
{
if (this.Count == 0)
{
// 列表为空，没法获得值
return(null);
}
foreach (SimpleRectangleTransform item in this.myItems)
{
if (onlyIncludeEnabledItem && item.Enable == false)
{
continue;
}
if (useSourceRect)
{
if (item.SourceRectF.Contains(x, y))
{
return(item);
}
}
else
{
if (item.DescRectF.Contains(x, y))
{
return(item);
}
}
}//foreach
if (compatibility)
{
// 寻找距离最近的目标矩形区域
float minLen = 0;
int index = 0;
for (int iCount = 0; iCount < this.myItems.Count; iCount++)
{
SimpleRectangleTransform item = myItems[iCount];
if (onlyIncludeEnabledItem && item.Enable == false)
{
continue;
}
RectangleF rect = useSourceRect ? item.SourceRectF : item.DescRectF;
if (rect.Contains(x, y))
{
return(myItems[iCount]);
}
float len = RectangleCommon.GetDistance(x, y, rect);
if (iCount == 0 || len < minLen)
{
minLen = len;
index = iCount;
}
}//for
return(myItems[index]);
}
else
{
return(null);
}
}
