/// <summary>
/// This method reads the selected subjects from the <see cref="TreeView"/>
/// with the current color from ColorizationParameters.SubjectColors into the
/// <see cref="selectedSubjects"/>field and recalculates the distances if applicable.
/// </summary>
private void ReReadSelectedSubjects()
{
this.selectedSubjects.Clear();
foreach (TreeNode categoryNode in this.trvSubjects.Nodes)
{
foreach (TreeNode subjectNode in categoryNode.Nodes)
{
if (subjectNode.Checked)
{
string name = subjectNode.Text;
if (!this.selectedSubjects.ContainsKey(name))
{
string scanpathString = string.Empty;
if (this.calcDistances)
{
scanpathString = this.scanpathsPicture.CalcPathString(name);
}
ScanpathProperties props = new ScanpathProperties(
name,
categoryNode.Text,
this.gazeColorParams.SubjectStyles[name],
this.mouseColorParams.SubjectStyles[name],
scanpathString);
this.selectedSubjects.Add(name, props);
}
}
}
}
this.RefillDistancesTable();
}
/// <summary>
/// This method adds the subject described by the <see cref="TreeViewEventArgs"/>
/// and the given name to the list of selected subjects.
/// </summary>
/// <param name="node">An <see cref="TreeNode"/> with the selected
/// subject</param>
/// <param name="name">A <see cref="String"/> with the subject name.</param>
private void AddSubjectToList(TreeNode node, string name)
{
if (node.Checked)
{
if (!this.selectedSubjects.ContainsKey(name))
{
string scanpathString = string.Empty;
if (this.calcDistances)
{
scanpathString = this.scanpathsPicture.CalcPathString(name);
}
ScanpathProperties props = new ScanpathProperties(
name,
node.Level == 0 ? node.Text : node.Parent.Text,
this.gazeColorParams.SubjectStyles[name],
this.mouseColorParams.SubjectStyles[name],
scanpathString);
this.selectedSubjects.Add(name, props);
}
}
else
{
if (this.selectedSubjects.ContainsKey(name))
{
this.selectedSubjects.Remove(name);
}
}
}