private static void LoadMessage(XmlNode messageNode,
Dictionary <string, VdfMessage> messageTable, VdfDocument vdfDocument)
{
string sval;
if (!XmlUtils.TryGetStringAttrValue(messageNode, VdfTag.NameAttrName, out sval))
{
return; //报文如果没有名称，则直接丢弃掉
}
VdfMessage message = new VdfMessage();
message.Name = sval;
if (XmlUtils.TryGetStringAttrValue(messageNode, VdfTag.DescriptionAttrName, out sval))
{
message.Description = sval;
}
int ival;
if (XmlUtils.TryGetIntAttrValue(messageNode, VdfTag.ByteLenAttrName, out ival))
{
message.ByteLen = ival;
}
messageTable.Add(message.Name, message);
//解析所有信号
var nodes = messageNode.SelectNodes(VdfTag.SignalElemName);
message.SignalTable = new Dictionary <string, VdfSignal>();
foreach (XmlNode node in nodes)
{
LoadSignal(node, message, vdfDocument);
}
}
protected void FireMessageChangedEvent(VdfMessage message)
{
if (VdfBox != null)
{
VdfBox.FireMessageChangedEvent(message);
}
}
private static void LoadSignal(XmlNode node, VdfMessage message, VdfDocument vdfDocument)
{
string sval;
if (!XmlUtils.TryGetStringAttrValue(node, VdfTag.NameAttrName, out sval))
{
return;
}
VdfSignal signal = new VdfSignal();
signal.Name = sval;
message.SignalTable.Add(signal.Name, signal);
int ival;
if (XmlUtils.TryGetIntAttrValue(node, VdfTag.StartBitAttrName, out ival))
{
signal.StartBit = ival;
}
else
{
throw new VdfException("Signal " + signal.Name + " missing StartBit Attribute");
}
if (XmlUtils.TryGetIntAttrValue(node, VdfTag.BitLenAttrName, out ival))
{
signal.BitLen = ival;
}
else
{
throw new VdfException("Signal " + signal.Name + " missing BitLen Attribute");
}
if (XmlUtils.TryGetStringAttrValue(node, VdfTag.ByteOrderAttrName, out sval))
{
VdfByteOrder vdfByteOrder;
if (!Enum.TryParse <VdfByteOrder>(sval, out vdfByteOrder))
{
throw new VdfException(
string.Format("Invalid Byte Order: {0}, Only Can be {1} or {2}",
sval, "Intel", "Motorola"));
}
signal.ByteOrder = vdfByteOrder;
}
if (XmlUtils.TryGetStringAttrValue(node, VdfTag.ValueDescAttrName, out sval))
{
signal.ValueDesc = sval;
//有个要求，只有值描述已经更新过了，Signal中的值描述才会更新
signal.VdfValueDesc = vdfDocument.ValueDesc(sval);
if (signal.VdfValueDesc == null)
{
throw new VdfException("ValueDesc " + sval + " Is Undefined Before " +
"Define Signal " + signal.Name);
}
}
}
public void FireMessageChangedEvent(VdfMessage message)
{
MessageChangedEventArgs e = new MessageChangedEventArgs();
e.Message = message;
OnMessageChanged?.Invoke(e);
}
public void AddMessage()
{
var name = NewMessageName;
var msgNode = new TreeNode(name,
ImageIndexMessage, ImageIndexMessage);
msgGrpNode.Nodes.Add(msgNode);
var msg = new VdfMessage();
msg.Name = name;
vdfDocument.MessageTable.Add(name, msg);
msgNode.Tag = msg;
treeView.SelectedNode = msgNode;
}
private void UpdateCurrMessage()
{
object tag = SelectedNodeTag();
if (tag == null)
{
return;
}
if (tag is Dictionary <string, VdfMessage> )
{
//page = new MessageGroupPage();
}
else if (tag is Dictionary <string, VdfValueDesc> )
{
//page = new ValueDescGroupPage();
}
else if (tag is VdfMessage)
{
//page = new MessagePage();
CurrMessage = tag as VdfMessage;
}
else if (tag is VdfSignal)
{
//page = new SignalPage();
CurrMessage = treeView.SelectedNode.Parent.Tag as VdfMessage;
}
else if (tag is VdfBcdValueDesc)
{
//page = new BcdValueDescPage();
}
else if (tag is VdfXncodeValueDesc)
{
//page = new XnCodeValueDescPage();
}
else if (tag is VdfPhyValueDesc)
{
//page = new PhysicalValueDescPage();
}
else if (tag is VdfAsciiValueDesc)
{
}
else
{
throw new Exception("不支持的实体类型");
}
}
private static void SaveMessage(VdfMessage message,
XmlElement messageTblElem, XmlDocument xmlDoc, VdfDocument vdfDocument)
{
var messageElem = xmlDoc.CreateElement(VdfTag.MessageElemName);
messageTblElem.AppendChild(messageElem);
XmlUtils.SetElemAttribute(messageElem, xmlDoc, VdfTag.NameAttrName, message.Name);
XmlUtils.SetElemAttribute(messageElem, xmlDoc,
VdfTag.DescriptionAttrName, message.Description);
XmlUtils.SetElemAttribute(messageElem, xmlDoc,
VdfTag.ByteLenAttrName, message.ByteLen);
foreach (var signalEntry in message.SignalTable)
{
SaveSignal(signalEntry.Value, messageElem, xmlDoc, vdfDocument);
}
}