private void GetImagesAsyncEnd(GetImageEndResult res)
{
//draw only if generation is larger than the current, else we have aldready drawn something newer
if (res == null || res.generation < _imageGeneration || _isDisposed)
return;
if (Logger.IsDebugEnabled)
Logger.DebugFormat("{2}: {0} - {1}", res.generation, res.bbox, DateTime.Now);
if ((_setActiveToolNoneDuringRedraw || ShowProgressUpdate) && InvokeRequired)
{
try
{
BeginInvoke(new MethodInvoker(delegate
{
GetImagesAsyncEnd(res);
}));
}
catch (Exception ex)
{
Logger.Warn(ex.Message, ex);
}
}
else
{
try
{
var oldRef = _image;
if (Width > 0 && Height > 0)
{
var bmp = new Bitmap(Width, Height);
using (var g = Graphics.FromImage(bmp))
{
g.Clear(_map.BackColor);
lock (_backgroundImagesLocker)
{
//Draws the background Image
if (_imageBackground != null)
{
try
{
g.DrawImageUnscaled(_imageBackground, 0, 0);
}
catch (Exception ex)
{
Logger.Warn(ex.Message, ex);
}
}
}
//Draws the static images
if (_staticImagesLocker != null)
{
try
{
if (_imageStatic != null)
{
g.DrawImageUnscaled(_imageStatic, 0, 0);
}
}
catch (Exception ex)
{
Logger.Warn(ex.Message, ex);
}
}
//Draws the variable Images
if (_imageVariable != null)
{
try
{
g.DrawImageUnscaled(_imageVariable, 0, 0);
}
catch (Exception ex)
{
Logger.Warn(ex.Message, ex);
}
}
g.Dispose();
}
lock (_paintImageLocker)
{
_image = bmp;
_imageEnvelope = res.bbox;
}
}
if (res.Tool.HasValue)
{
if (_setActiveToolNoneDuringRedraw)
ActiveTool = res.Tool.Value;
_dragEndPoint = new Point(0, 0);
_isRefreshing = false;
if (_setActiveToolNoneDuringRedraw)
Enabled = true;
if (ShowProgressUpdate)
{
_progressBar.Enabled = false;
_progressBar.Visible = false;
}
}
lock (_paintImageLocker)
{
if (oldRef != null)
oldRef.Dispose();
}
Invalidate();
}
catch (Exception ex)
{
Logger.Warn(ex.Message, ex);
}
#if DEBUG
_watch.Stop();
LastRefreshTime = _watch.Elapsed;
#endif
try
{
if (MapRefreshed != null)
{
MapRefreshed(this, null);
}
}
catch (Exception ee)
{
//Trap errors that occured when calling the eventhandlers
Logger.Warn("Exception while calling eventhandler", ee);
}
}
}
private void GetImagesAsyncEnd(GetImageEndResult res)
{
//draw only if generation is larger than the current, else we have aldready drawn something newer
if (res == null || res.generation < _imageGeneration)
return;
#if DEBUG
Debug.WriteLine(string.Format("{2}: {0} - {1}", res.generation, res.bbox, DateTime.Now));
#endif
if ((_setActiveToolNoneDuringRedraw || ShowProgressUpdate) && InvokeRequired)
{
try
{
BeginInvoke(new MethodInvoker(delegate
{
GetImagesAsyncEnd(res);
}));
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
else
{
try
{
var oldRef = _image;
var bmp = new Bitmap(Width, Height);
lock (_map)
{
using (var g = Graphics.FromImage(bmp))
{
//Draws the background Image
if (_imageBackground != null)
{
try
{
g.DrawImageUnscaled(_imageBackground, 0, 0);
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
//Draws the static images
if (_imageStatic != null)
{
try
{
g.DrawImageUnscaled(_imageStatic, 0, 0);
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
//Draws the variable Images
if (_imageVariable != null)
{
try
{
g.DrawImageUnscaled(_imageVariable, 0, 0);
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
g.Dispose();
}
_image = bmp;
_imageBoundingBox = res.bbox;
}
if (res.Tool.HasValue)
{
if (_setActiveToolNoneDuringRedraw)
ActiveTool = res.Tool.Value;
_dragEndPoint = new Point(0, 0);
_isRefreshing = false;
if (_setActiveToolNoneDuringRedraw)
Enabled = true;
if (ShowProgressUpdate)
{
_progressBar.Enabled = false;
_progressBar.Visible = false;
}
}
if (oldRef != null)
oldRef.Dispose();
Invalidate();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
#if DEBUG
_watch.Stop();
LastRefreshTime = _watch.Elapsed;
#endif
if (MapRefreshed != null)
{
BeginInvoke(new MethodInvoker(delegate
{
MapRefreshed(this, null);
}));
}
}
}
