/// <summary>
/// Fires the OnBufferChanged event
/// </summary>
/// <param name="clipRectangles">The System.Drawing.Rectangle in pixels</param>
protected virtual void OnBufferChanged(List<Rectangle> clipRectangles)
{
if (BufferChanged != null)
{
ClipArgs e = new ClipArgs(clipRectangles);
BufferChanged(this, e);
}
}
private void MapFrame_BufferChanged(object sender, ClipArgs e)
{
Rectangle view = MapFrame.View;
foreach (Rectangle clip in e.ClipRectangles)
{
if (clip.IsEmpty == false)
{
Rectangle mapClip = new Rectangle(clip.X - view.X, clip.Y - view.Y, clip.Width, clip.Height);
Invalidate(mapClip);
}
}
}
///// <summary>
///// Occurs when wiring events
///// </summary>
///// <param name="item"></param>
//protected override void OnInclude(ILayer item)
//{
// IMapLayer gl = item as IMapLayer;
// if (gl != null)
// {
// gl.BufferChanged += new System.EventHandler<ClipArgs>(gl_BufferChanged);
// }
// base.OnInclude(item);
//}
///// <summary>
///// Occurs when unwiring events
///// </summary>
///// <param name="item"></param>
//protected override void OnExclude(ILayer item)
//{
// IMapLayer gl = item as IMapLayer;
// if (gl != null)
// {
// gl.BufferChanged -= new System.EventHandler<ClipArgs>(gl_BufferChanged);
// }
// base.OnExclude(item);
//}
//void gl_BufferChanged(object sender, ClipArgs e)
//{
// OnBufferChanged(sender, e);
//}
/// <summary>
/// This simply forwards the call from a layer to the container
/// of this collection (like a MapFrame).
/// </summary>
/// <param name="sender">The layer that actually changed</param>
/// <param name="e"></param>
protected virtual void OnBufferChanged(object sender, ClipArgs e)
{
if (BufferChanged != null) BufferChanged(sender, e);
}
