internal void Draw()
{
ISpatialDisplay display = m_Cmd.ActiveDisplay;
// If we're doing an update, draw the original split point in grey.
SimpleLineSubdivisionOperation pop = UpdateOp;
if (pop != null)
{
PointFeature point = pop.NewPoint;
if (point != null)
{
point.Draw(display, Color.Gray);
}
}
// Ensure the line that's being subdivided is still highlighted
IDrawStyle style = EditingController.Current.HighlightStyle;
m_Line.Render(display, style);
// Calculate the position of the split point.
IPosition splitpos = SimpleLineSubdivisionOperation.Calculate(m_Line, m_Length, m_IsFromEnd);
if (splitpos != null)
{
style = EditingController.Current.Style(Color.Magenta);
style.Render(display, splitpos);
}
}
/// <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("SimpleLineSubdivisionUI.DialFinish - No dialog!");
return(false);
}
// De-select the line that's being split
Controller.ClearSelection();
// Get info from the dialog.
m_Length = m_Dialog.Length;
// If we are doing an update, alter the original operation.
UpdateUI up = this.Update;
if (up != null)
{
// Get the original operation.
SimpleLineSubdivisionOperation pop = (up.GetOp() as SimpleLineSubdivisionOperation);
if (pop == null)
{
MessageBox.Show("SimpleLineSubdivisionUI.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_Length, m_Dialog.IsFromEnd);
if (!up.AddUpdate(pop, changes))
{
return(false);
}
}
else
{
// Execute the edit
SimpleLineSubdivisionOperation op = null;
try
{
op = new SimpleLineSubdivisionOperation(m_Line, m_Length, m_Dialog.IsFromEnd);
op.Execute();
}
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());
}
bool InitUpdate()
{
// Get the creating op.
SimpleLineSubdivisionOperation pop = this.UpdateOp;
if (pop == null)
{
return(false);
}
Form parent = ParentForm;
parent.Text = "Update Line Subdivision";
m_Line = pop.Line;
m_Length = new Distance(pop.Distance);
m_IsFromEnd = pop.IsFromEnd;
return(true);
}
internal SimpleLineSubdivisionControl(SimpleLineSubdivisionUI cmd, LineFeature line, Operation recall)
{
InitializeComponent();
m_Cmd = cmd;
m_Line = line;
m_MaxLength = 0.0;
SimpleLineSubdivisionOperation op = (recall as SimpleLineSubdivisionOperation);
if (op != null)
{
m_Length = new Distance(op.Distance);
m_IsFromEnd = op.IsFromEnd;
}
else
{
m_Length = new Distance();
m_IsFromEnd = false;
}
}
