public static String UpdateImageList(IController callingController, ImageList passedList, String imageFilePath, Boolean useConfigPath)
{
String fileInfoString = imageFilePath;
Stream imageStream = null;
FileStream streamFromFileInfo = null;
if (useConfigPath)
{
if (!imageFilePath.Contains("\\")) // not like "C:\task.png, e.g. "task.png"
{
imageStream = callingController.GetImage(imageFilePath);
}
else
{
FileInfo fileInfo = new FileInfo(fileInfoString);
streamFromFileInfo = fileInfo.Open(FileMode.Open);
imageStream = streamFromFileInfo;
}
}
if (!passedList.Images.ContainsKey(fileInfoString))
{
if (imageStream != null)
{
Bitmap bitmap = new Bitmap(imageStream);
passedList.Images.Add(fileInfoString, new Bitmap(bitmap)); // key on node ID
if (streamFromFileInfo != null)
{
streamFromFileInfo.Close();
}
bitmap.Dispose();
}
}
return fileInfoString;
}