private void RefreshPreview(string propertyName)
{
if (propertyName != "Preview" && !string.IsNullOrEmpty(selectedFormat.Trim()))
{
DatePrinterLayer datePrinterLayer = new DatePrinterLayer();
datePrinterLayer.LoadFromViewModel(this);
using (Bitmap bitmap = new Bitmap(460, 50))
{
PlatformGeoCanvas canvas = new PlatformGeoCanvas();
canvas.BeginDrawing(bitmap, new RectangleShape(-180, 90, 180, -90), GeographyUnit.Meter);
datePrinterLayer.SafeProcess(() =>
{
datePrinterLayer.Draw(canvas, new Collection <SimpleCandidate>());
});
canvas.EndDrawing();
MemoryStream ms = new MemoryStream();
bitmap.Save(ms, ImageFormat.Png);
BitmapImage bitmapImage = new BitmapImage();
bitmapImage.BeginInit();
bitmapImage.StreamSource = ms;
bitmapImage.EndInit();
preview = bitmapImage;
RaisePropertyChanged(() => Preview);
}
}
}
public static DatePrinterLayer GetCurrentDatePrinterLayer(double width, double height, double centerX, double centerY)
{
DatePrinterLayer datePrinterLayer = new DatePrinterLayer {
DrawingExceptionMode = DrawingExceptionMode.DrawException
};
datePrinterLayer.LoadFromViewModel(new DateElementViewModel()
{
SelectedFormat = DateTime.Now.ToShortDateString(), FontSize = 12
});
datePrinterLayer.Open();
datePrinterLayer.SetPosition(width, height, centerX, centerY, PrintingUnit.Inch);
return(datePrinterLayer);
}