private void listBox_SelectedValueChanged(object sender, EventArgs e)
{
// If we previously had a selected circle, erase it.
ISpatialDisplay display = EditingController.Current.ActiveDisplay;
if (m_Select != null)
{
display.PaintNow();
}
/*
* // If we previously had a selected circle, erase it. Then
* // redraw any attached curved (erasing the highlighting
* // may have left attached curves looking in poor shape).
*
* if ( m_pSelect ) {
* m_pSelect->Erase();
* CeLayerList curlayer;
* m_pSelect->DrawCurves(curlayer);
* }
*/
// Get the new selection.
m_Select = GetSel();
if (m_Select == null)
{
return;
}
// ... and highlight it.
DottedStyle style = new DottedStyle();
m_Select.Render(display, style);
}
/// <summary>
/// FormClosing event handler that's called when inverse calculator dialog
/// is closed.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void InverseFormClosing(object sender, FormClosingEventArgs e)
{
m_Inverse = null;
ISpatialDisplay display = EditingController.Current.ActiveDisplay;
display.RestoreLastDraw();
display.PaintNow();
}
/// <summary>
/// Delegate that's called whenever the index finds an object with an extent that
/// overlaps the query window.
/// </summary>
/// <param name="item">The item to process</param>
/// <returns>True (always), meaning the query should continue.</returns>
bool OnQueryHit(ISpatialObject item)
{
if (m_DoPaint)
{
m_DoPaint = false;
m_Display.PaintNow();
}
item.Render(m_Display, m_Style);
return(true);
}
/// <summary>
/// Creates a new <c>DrawQuery</c> that refers to the specified feature type(s),
/// drawing the results of the spatial query to the specified display.
/// </summary>
/// <param name="index">The index to query</param>
/// <param name="display">The display to draw to</param>
/// <param name="style">The drawing style</param>
/// <param name="types">The type(s) of spatial feature to draw</param>
public DrawQuery(ISpatialIndex index, ISpatialDisplay display, IDrawStyle style, SpatialType types)
{
m_Display = display;
m_Style = style;
m_DoPaint = false;
Timer t = new Timer(500);
t.Elapsed += new ElapsedEventHandler(Timer_Elapsed);
t.Start();
index.QueryWindow(m_Display.Extent, types, OnQueryHit);
t.Close();
display.PaintNow();
}
/// <summary>
/// Creates a new <c>DrawQuery</c> that refers to the specified feature type(s),
/// drawing the results of the spatial query to the specified display.
/// </summary>
/// <param name="index">The index to query</param>
/// <param name="display">The display to draw to</param>
/// <param name="style">The drawing style</param>
/// <param name="types">The type(s) of spatial feature to draw</param>
public DrawQuery(ISpatialIndex index, ISpatialDisplay display, IDrawStyle style, SpatialType types)
{
m_Display = display;
m_Style = style;
m_DoPaint = false;
Timer t = new Timer(500);
t.Elapsed += new ElapsedEventHandler(Timer_Elapsed);
t.Start();
index.QueryWindow(m_Display.Extent, types, OnQueryHit);
t.Close();
display.PaintNow();
}
/// <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();
}
}
