/// <summary>
/// Helper method to provide the corresponding Icon for a station
/// </summary>
/// <param name=""></param>
/// <returns></returns>
public BitmapDescriptor CreateStationIcon(Station station)
{
Bitmap bitmap = null;
var value = _settingsService.Settings.IsBikeMode ? station.AvailableBikes : station.AvailableBikeStands;
var printedValue = value.HasValue ? value.Value.ToString() : string.Empty;
if (!station.Loaded)
{
printedValue = string.Empty;
bitmap = _iconGreyLowAlpha;
bitmap = bitmap.Copy(bitmap.GetConfig(), true);
}
else if (station.Status == false)
{
printedValue = "!";
bitmap = _iconGrey;
bitmap = bitmap.Copy(bitmap.GetConfig(), true);
}
else if (station.ImageAvailable != null || station.ImageDocks != null)
{
if (_metrics == null)
{
_metrics = new DisplayMetrics();
(CrossCurrentActivity.Current.Activity as MainActivity).WindowManager.DefaultDisplay.GetMetrics(_metrics);
}
bitmap = _iconGrey;
bitmap = bitmap.Copy(bitmap.GetConfig(), true);
try
{
var data = (byte[])(_settingsService.Settings.IsBikeMode ? station.ImageAvailable : station.ImageDocks);
var gifDecoder = new GifDecoder();
gifDecoder.read(data);
if (gifDecoder.getFrameCount() != 0)
{
gifDecoder.advance();
var bmp = gifDecoder.getNextFrame();
var canvas = new Canvas(bitmap);
int width = bmp.Width;
int height = bmp.Height;
float scaleWidth = _metrics.ScaledDensity;
float scaleHeight = _metrics.ScaledDensity;
// create a matrix for the scaling manipulation
Matrix matrix = new Matrix();
// resize the bitmap
matrix.PostScale(scaleWidth, scaleHeight);
// recreate the new Bitmap
var resizedBitmap = Bitmap.CreateBitmap(bmp, 0, 0, width, height, matrix, true);
int xPos = canvas.Width / 2 - resizedBitmap.Width / 2;
int yPos = canvas.Height / 2 - resizedBitmap.Height;
canvas.DrawBitmap(resizedBitmap, xPos, yPos, null);
}
}
catch (System.Exception e)
{
}
}
else {
if (value == 0)
{
bitmap = _iconRed;
}
else if (value < 5)
{
bitmap = _iconOrange;
}
else if (value >= 5)
{
bitmap = _iconGreen;
}
else
{
printedValue = "?";
bitmap = _iconGrey;
}
}
if (printedValue != string.Empty)
{
bitmap = bitmap.Copy(bitmap.GetConfig(), true);
Canvas canvas = new Canvas(bitmap);
int xPos = (canvas.Width / 2);
int yPos = (int)((canvas.Height / 2) - ((_textPaint.Descent() + _textPaint.Ascent()) / 2));
canvas.DrawText(printedValue, xPos + 1, yPos - LayoutHelper.ConvertDpToPixel(6), _textPaint);
}
var icon = BitmapDescriptorFactory.FromBitmap(bitmap);
bitmap.Recycle();
return icon;
}