/// <summary>
/// 遍历所有的功能块，如果 loopFunc 返回 false，则停止遍历。
/// </summary>
/// <param name="loopFunc">功能块处理函数，如果返回 false，则停止遍历</param>
/// <param name="pouSourceFilter">对嵌套的 Pou Source 对象进行过滤，如果返回 false，则该 Pou Source 对象就不遍历了。</param>
/// <param name="child">子对象</param>
/// <param name="loopedTypes">用于记录已经被遍历过的功能块信息</param>
/// <returns>遍历是否没有被 loopFunc 函数终止？</returns>
protected virtual bool LoopPOUs(Func <ViFirmBlockType, bool> loopFunc, Func <ViPouSource, bool> pouSourceFilter, ViNamedObject child, Dictionary <string, ViFirmBlockType> loopedTypes)
{
if (child is ViFirmBlockType)
{
ViFirmBlockType blockType = child as ViFirmBlockType;
// 记录遍历过的功能块信息
string key = blockType.Name.ToUpper();
if (loopedTypes.ContainsKey(key))
{
return(true);
}
loopedTypes[key] = blockType;
// 遍历功能块
if (!loopFunc(blockType))
{
return(false);
}
}
else if (child is ViPouSource)
{
ViPouSource pouSource = child as ViPouSource;
if (pouSourceFilter == null || pouSourceFilter(pouSource))
{
if (!pouSource.LoopPOUs(loopFunc, pouSourceFilter, loopedTypes))
{
return(false);
}
}
}
return(true);
}
private static void AppendPouSource(ArrayList alPouSources, ViHardwareType hardwareType, string sourceFile, Func <string, ViPouSource> factory)
{
sourceFile = GetPouSrcFileName(hardwareType, sourceFile);
if (string.IsNullOrEmpty(sourceFile))
{
return;
}
// 自动创建 PouSource 字典对象
if (_pouSources == null)
{
_pouSources = new Dictionary <string, ViPouSource>();
}
// 可能会在 UI/Build 线程中调用，因此互斥访问
lock (_pouSources)
{
// 先在字典中查找，如果找不到，则自动创建
string sourceKey = (hardwareType.HardwareName + ':' + sourceFile).ToUpper();
if (_pouSources.ContainsKey(sourceKey))
{
alPouSources.Add(_pouSources[sourceKey]);
}
else
{
ViPouSource pouSource = factory(sourceFile);
if (pouSource != null)
{
_pouSources[sourceKey] = pouSource;
alPouSources.Add(pouSource);
}
}
}
}
/// <summary>
/// 查找指定名称的功能块。
/// </summary>
/// <param name="name">功能块名称（不区分大小写）</param>
/// <returns>指定名称的功能块。</returns>
public virtual ViFirmBlockType GetPOU(string name)
{
// 先保证数据被更新了
object _Children = this.Children;
ViFirmBlockType blockType;
// 先在子节点中查找
name = name.ToUpper();
if (this.Children != null && this.Children.Count > 0)
{
blockType = this.Children.Where(o => string.Compare(o.Name, name, true) == 0).FirstOrDefault() as ViFirmBlockType;
if (blockType != null)
{
return(blockType);
}
}
if (this.RecursiveSearch)
{
// 在子节点中递归查找
foreach (ViNamedObject child in this.Children)
{
ViPouSource pouSource = child as ViPouSource;
if (pouSource == null)
{
continue;
}
blockType = pouSource.GetPOU(name);
if (blockType != null)
{
return(blockType);
}
}
}
// 没有找到
return(null);
}
