/// <summary>
/// Checks whether this selection refers to the same spatial objects as
/// another selection, and has the same reference position.
/// </summary>
/// <param name="that">The selection to compare with</param>
/// <returns>True if the two selections refer to the same spatial objects (not
/// necessarily in the same order)</returns>
public bool Equals(ISpatialSelection that)
{
// The same spatial objects have to be involved
if (!SpatialSelection.Equals(this, that))
return false;
// If both selections refer to the same divider (or null), they're the same
Selection other = (that as Selection);
if (other == null)
return false;
IDivider d1 = (this.m_Section == null ? null : this.m_Section.Divider);
IDivider d2 = (other.m_Section == null ? null : other.m_Section.Divider);
return Object.ReferenceEquals(d1, d2);
}
/// <summary>
/// Application idle handler gives editing commands the opportunity to re-paint
/// any command-specific stuff.
/// </summary>
internal void OnIdle()
{
bool repaint = false;
ISpatialDisplay display = ActiveDisplay;
if (m_Inverse != null)
{
m_Inverse.Draw();
repaint = true;
}
if (m_Check != null)
{
m_Check.Render(display, DrawStyle);
repaint = true;
}
if (m_Sel != null)
{
m_Sel.Render(display);
repaint = true;
}
if (m_Sel != null || m_HasSelectionChanged)
{
SpatialSelection.Render(display, HighlightStyle);
repaint = true;
m_HasSelectionChanged = false;
}
if (m_Command != null && m_Command.PerformsPainting)
{
// Restoring the last draw here can cause flickering of the command-specific
// stuff, so make it the responsibility of the command to call erase stuff.
// (the main thing to ensure is that the call to RestoreLastDraw is made
// only when the user has really made some sort of change).
// m_Command.ActiveDisplay.RestoreLastDraw();
m_Command.Paint(null);
repaint = true;
}
if (repaint)
{
display.PaintNow();
}
}
/// <summary>
/// Reacts to selection of the OK button in the dialog.
/// </summary>
/// <param name="wnd">The dialog window (ignored).</param>
/// <returns></returns>
internal override bool DialFinish(Control wnd)
{
if (m_Dialog == null)
{
MessageBox.Show("IntersectUI.DialFinish - No dialog!");
return(false);
}
PointFeature p = m_Dialog.Finish();
if (p == null)
{
return(false);
}
// Get the controller to select the intersection point
ISpatialSelection ss = new SpatialSelection((ISpatialObject)p);
Controller.SetSelection(ss);
m_Dialog.Dispose();
m_Dialog = null;
return(FinishCommand());
}
/// <summary>
/// Reacts to selection of the OK button in the dialog.
/// </summary>
/// <param name="wnd">The dialog window (ignored).</param>
/// <returns></returns>
internal override bool DialFinish(Control wnd)
{
if (m_Dialog==null)
{
MessageBox.Show("IntersectUI.DialFinish - No dialog!");
return false;
}
PointFeature p = m_Dialog.Finish();
if (p==null)
return false;
// Get the controller to select the intersection point
ISpatialSelection ss = new SpatialSelection((ISpatialObject)p);
Controller.SetSelection(ss);
m_Dialog.Dispose();
m_Dialog = null;
return FinishCommand();
}
