/// <summary>
/// Reacts to selection of the OK button in the dialog.
/// </summary>
/// <param name="wnd">The dialog window. If this matches the dialog that
/// this command knows about, the command will be executed (and, on success,
/// the dialog will be destroyed). If it's some other window, it must
/// be a sub-dialog created by our guy, so let it handle the request.</param>
/// <returns></returns>
internal override bool DialFinish(Control wnd)
{
if (m_Dialog==null)
{
MessageBox.Show("LineExtensionUI.DialFinish - No dialog!");
return false;
}
// If we are doing an update, alter the original operation.
UpdateUI up = this.Update;
if (up!=null)
{
// Get the original operation.
LineExtensionOperation pop = (up.GetOp() as LineExtensionOperation);
if (pop==null)
{
MessageBox.Show("LineExtensionUI.DialFinish - Unexpected edit type.");
return false;
}
// Remember the changes as part of the UI object (the original edit remains
// unchanged for now)
UpdateItemCollection changes = pop.GetUpdateItems(m_Dialog.IsExtendFromEnd, m_Dialog.Length);
if (!up.AddUpdate(pop, changes))
return false;
}
else
{
// Get info from the dialog
m_IsExtendFromEnd = m_Dialog.IsExtendFromEnd;
m_Length = m_Dialog.Length;
IdHandle idh = m_Dialog.PointId;
CadastralMapModel map = CadastralMapModel.Current;
m_LineType = (m_Dialog.WantLine ? map.DefaultLineType : null);
// Execute the edit
LineExtensionOperation op = null;
try
{
op = new LineExtensionOperation(m_ExtendLine, m_IsExtendFromEnd, m_Length);
op.Execute(idh, m_LineType);
}
catch (Exception ex)
{
MessageBox.Show(ex.StackTrace, ex.Message);
return false;
}
}
// Destroy the dialog(s).
KillDialogs();
// Get the base class to finish up.
return FinishCommand();
}
void InitUpdate(LineExtensionOperation pop)
{
Form parent = ParentForm;
parent.Text = "Update Line Extension";
m_ExtendLine = pop.ExtendedLine;
m_IsExtendFromEnd = pop.IsExtendFromEnd;
m_Length = new Distance(pop.Length);
// Was an extension line added?
m_WantLine = (pop.NewLine!=null);
// Scroll the entity combo to the previously defined
// entity type for the extension point.
PointFeature point = pop.NewPoint;
IEntity ent = point.EntityType;
if (ent != null)
pointTypeComboBox.SelectEntity(ent);
// Display the original observed length.
lengthTextBox.Text = m_Length.Format();
// Display the point key (if any)
idComboBox.DropDownStyle = ComboBoxStyle.DropDown;
idComboBox.Text = point.FormattedKey;
}
