/// <summary>
/// Fires the variable operation event.
/// </summary>
/// <param name="variable">The variable.</param>
/// <param name="eventHandler">The event handler.</param>
private void FireVariableLinkOperationEvent(PacketPropertyVariable variable, PacketPropertyVariableLink variableLink, VariableLinkOperationEventHandler eventHandler)
{
if (null != eventHandler)
{
eventHandler(variable, variableLink);
}
}
/// <summary>
/// Compares this variable to another one.
/// </summary>
/// <param name="packetPropertyVariable">The packet property variable.</param>
/// <returns><code>true</code> if all fields are equal, <code>false</code> otherwise.</returns>
protected bool Equals(PacketPropertyVariable packetPropertyVariable)
{
if (packetPropertyVariable == null)
{
return(false);
}
return(Equals(links, packetPropertyVariable.links) && Equals(name, packetPropertyVariable.name));
}
/// <summary>
/// Determines whether variable is linked to packet.
/// </summary>
/// <param name="variable">The variable.</param>
/// <param name="packetType">Type of the packet.</param>
/// <returns>
/// <c>true</c> if variable is linked to packet; otherwise, <c>false</c>.
/// </returns>
private bool IsVariableLinkedToPacket(PacketPropertyVariable variable, Type packetType)
{
bool ret = false;
IList <PacketPropertyVariableLink> links = variable.Links;
for (int i = links.Count - 1; 0 <= i; --i)
{
PacketPropertyVariableLink link = links[i];
if (link.PacketClass.type == packetType)
{
ret = true;
}
}
return(ret);
}
/// <summary>
/// Gets the variable link to packet.
/// </summary>
/// <param name="variable">The variable.</param>
/// <param name="packetType">Type of the packet.</param>
/// <returns>Found variable link, or <code>null</code> otherwise.</returns>
private PacketPropertyVariableLink GetVariableLinkToPacket(PacketPropertyVariable variable, Type packetType)
{
PacketPropertyVariableLink ret = null;
// Check every link of a variable
IList <PacketPropertyVariableLink> links = variable.Links;
for (int i = links.Count - 1; 0 <= i; --i)
{
PacketPropertyVariableLink link = links[i];
if (link.PacketClass.type.IsAssignableFrom(packetType))
{
// Found link - stop the loop
ret = link;
break;
}
}
return(ret);
}
/// <summary>
/// Does the variable operation.
/// </summary>
/// <param name="variableName">Name of the variable.</param>
/// <param name="operationHandler">The operation handler.</param>
/// <param name="successHandler">The success handler.</param>
/// <returns><code>true</code> if variable exists and <paramref name="operationHandler"/> returned <code>true</code>.</returns>
private bool DoVariableOperation(string variableName,
InternalVariableOperation operationHandler,
VariableOperationEventHandler successHandler)
{
bool ret;
try
{
// Check if variable exists
VariableEntry entry;
ret = variableEntriesByName.TryGetValue(variableName, out entry);
PacketPropertyVariable variable = (ret ? entry.variable : null);
if (ret)
{
// Do operation
ret = operationHandler(variable);
}
if (ret)
{
// Fire event only on successful modification of list
successHandler(variable);
}
}
catch (Exception e)
{
ret = false;
// Format message
string message = string.Format("Error in variable operation with params: variableName={0}, operationHandler={1}, successHandler={2}"
, variableName ?? "null"
, operationHandler ?? (object)"null"
, successHandler ?? (object)"null");
Log.Error(message, e);
}
return(ret);
}
/// <summary>
/// Adds the variable.
/// </summary>
/// <param name="variable">The variable.</param>
/// <returns><code>true</code> if variable is added successfully, <code>false</code> otherwise.</returns>
public bool AddVariable(PacketPropertyVariable variable)
{
bool ret = false;
try
{
ret = !variableEntriesByName.ContainsKey(variable.Name);
if (ret)
{
// Add variable to collections
VariableEntry entry = new VariableEntry();
entry.variable = variable;
variableEntriesByName.Add(variable.Name, entry);
int oldCount = variableEntriesList.Count;
variableEntriesList.Add(entry);
// Check for errors
ret = (oldCount != variableEntriesList.Count);
if (!ret)
{
string message = "Internal lists are in inconsistent state after adding of variable " + (variable ?? (object)"(null)");
Log.Error(message);
throw new Exception(message);
}
else
{
// Fire event
FireVariableOperationEvent(variable, VariableAdded);
}
}
}
catch (Exception e)
{
ret = false;
Log.Error("Error adding a variable: variable=" + (variable ?? (object)"null"), e);
}
return(ret);
}
/// <summary>
/// Adds the variable.
/// </summary>
/// <param name="variable">The variable.</param>
/// <returns><code>true</code> if variable is added successfully, <code>false</code> otherwise.</returns>
public bool AddVariable(PacketPropertyVariable variable)
{
bool ret = false;
try
{
ret = !variableEntriesByName.ContainsKey(variable.Name);
if (ret)
{
// Add variable to collections
VariableEntry entry = new VariableEntry();
entry.variable = variable;
variableEntriesByName.Add(variable.Name, entry);
int oldCount = variableEntriesList.Count;
variableEntriesList.Add(entry);
// Check for errors
ret = (oldCount != variableEntriesList.Count);
if (!ret)
{
string message = "Internal lists are in inconsistent state after adding of variable " + (variable ?? (object)"(null)");
Log.Error(message);
throw new Exception(message);
}
else
{
// Fire event
FireVariableOperationEvent(variable, VariableAdded);
}
}
}
catch (Exception e)
{
ret = false;
Log.Error("Error adding a variable: variable=" + (variable ?? (object)"null"), e);
}
return ret;
}
/// <summary>
/// Handles the Click event of the varAddButton control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="T:System.EventArgs"/> instance containing the event data.</param>
private void varAddButton_Click(object sender, EventArgs e)
{
try
{
// Create and select a new var
PacketClass pak = (PacketClass) packetClassComboBox.SelectedItem;
ClassMemberPath mem = (ClassMemberPath) packetClassPropertyComboBox.SelectedItem;
PacketPropertyVariable var = new PacketPropertyVariable(pak, mem, GenerateNewVariableName());
variablesManager.AddVariable(var);
}
catch (Exception ex)
{
Log.Error("Error", ex);
}
}
/// <summary>
/// Gets the variable link to packet.
/// </summary>
/// <param name="variable">The variable.</param>
/// <param name="packetType">Type of the packet.</param>
/// <returns>Found variable link, or <code>null</code> otherwise.</returns>
private PacketPropertyVariableLink GetVariableLinkToPacket(PacketPropertyVariable variable, Type packetType)
{
PacketPropertyVariableLink ret = null;
// Check every link of a variable
IList<PacketPropertyVariableLink> links = variable.Links;
for (int i = links.Count - 1; 0 <= i; --i)
{
PacketPropertyVariableLink link = links[i];
if (link.PacketClass.type.IsAssignableFrom(packetType))
{
// Found link - stop the loop
ret = link;
break;
}
}
return ret;
}
/// <summary>
/// Variableses the manager_ variable link replaced.
/// </summary>
/// <param name="variable">The variable.</param>
/// <param name="link">The link.</param>
private void variablesManager_VariableLinkReplaced(PacketPropertyVariable variable, PacketPropertyVariableLink link)
{
// Update links listbox only if variable is currently selected (and hence links list contains variables links)
if (varListBox.SelectedItem == variable)
{
// Save current selection
int selectedIndex = varPacketsLinksListBox.SelectedIndex;
// Clear listbox items
varPacketsLinksListBox.Items.Clear();
// Add all variable items
ListBoxHelpers.AddRange(varPacketsLinksListBox, variable.Links);
// Restore selection index
varPacketsLinksListBox.SelectedIndex = selectedIndex;
}
}
/// <summary>
/// Removes the variable.
/// </summary>
/// <param name="variable">The variable.</param>
private void variablesManager_VariableRemoved(PacketPropertyVariable variable)
{
varListBox.Items.Remove(variable);
UpdateButtonsEnabledState();
}
/// <summary>
/// Modifies the variable.
/// </summary>
/// <param name="variable">The variable.</param>
private void variablesManager_VariableModified(PacketPropertyVariable variable)
{
// Update modified item
int index = varListBox.Items.IndexOf(variable);
varListBox.Items[index] = variable;
// Update packet filters list
ListBoxHelpers.Refresh(filtersListBox);
UpdateButtonsEnabledState();
}
//
// Synchronize user-visible data with modifications of variables manager
//
/// <summary>
/// Adds the variable.
/// </summary>
/// <param name="variable">The variable.</param>
private void variablesManager_VariableAdded(PacketPropertyVariable variable)
{
// Add and select new variable
varListBox.Items.Add(variable);
varListBox.SelectedItem = variable;
// Updates
UpdateSelectedVariableData();
UpdateButtonsEnabledState();
// Select variable name
varNameTextBox.Focus();
varNameTextBox.SelectAll();
}
/// <summary>
/// Shows the links of a variable.
/// </summary>
/// <param name="variable">The variable.</param>
private void ShowVariableLinks(PacketPropertyVariable variable)
{
varPacketsLinksListBox.Items.Clear();
if (null != variable)
{
ListBoxHelpers.AddRange(varPacketsLinksListBox, variable.Links);
}
}
/// <summary>
/// Determines whether variable is linked to packet.
/// </summary>
/// <param name="variable">The variable.</param>
/// <param name="packetType">Type of the packet.</param>
/// <returns>
/// <c>true</c> if variable is linked to packet; otherwise, <c>false</c>.
/// </returns>
private bool IsVariableLinkedToPacket(PacketPropertyVariable variable, Type packetType)
{
bool ret = false;
IList<PacketPropertyVariableLink> links = variable.Links;
for (int i = links.Count - 1; 0 <= i; --i)
{
PacketPropertyVariableLink link = links[i];
if (link.PacketClass.type == packetType)
{
ret = true;
}
}
return ret;
}
/// <summary>
/// Variableses the manager_ variable link removed.
/// </summary>
/// <param name="variable">The variable.</param>
/// <param name="link">The link.</param>
private void variablesManager_VariableLinkRemoved(PacketPropertyVariable variable, PacketPropertyVariableLink link)
{
// Update links listbox only if variable is currently selected (and hence links list contains variables links)
if (varListBox.SelectedItem == variable)
{
varPacketsLinksListBox.Items.Remove(link);
}
}
/// <summary>
/// Compares this variable to another one.
/// </summary>
/// <param name="packetPropertyVariable">The packet property variable.</param>
/// <returns><code>true</code> if all fields are equal, <code>false</code> otherwise.</returns>
protected bool Equals(PacketPropertyVariable packetPropertyVariable)
{
if (packetPropertyVariable == null) return false;
return Equals(links, packetPropertyVariable.links) && Equals(name, packetPropertyVariable.name);
}
/// <summary>
/// Fires the variable operation event.
/// </summary>
/// <param name="variable">The variable.</param>
/// <param name="eventHandler">The event handler.</param>
private void FireVariableOperationEvent(PacketPropertyVariable variable, VariableOperationEventHandler eventHandler)
{
if (null != eventHandler)
{
eventHandler(variable);
}
}
