private void TextElementEntity_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
if (withPreview && e.PropertyName != "Preview" && !string.IsNullOrEmpty(text.Trim()))
{
LabelPrinterLayer labelPrinterLayer = new LabelPrinterLayer();
labelPrinterLayer.LoadFromViewModel(this);
using (Bitmap bitmap = new Bitmap(250, 100))
{
PlatformGeoCanvas canvas = new PlatformGeoCanvas();
canvas.BeginDrawing(bitmap, new RectangleShape(-180, 90, 180, -90), GeographyUnit.Meter);
labelPrinterLayer.SafeProcess(() =>
{
labelPrinterLayer.Draw(canvas, new Collection <SimpleCandidate>());
});
//labelPrinterLayer.Open();
//labelPrinterLayer.Draw(canvas, new System.Collections.ObjectModel.Collection<SimpleCandidate>());
//labelPrinterLayer.Close();
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 LabelPrinterLayer GetLabelPrinterLayer(string text, double width, double height, double centerX, double centerY)
{
LabelPrinterLayer labelPrinterLayer = new LabelPrinterLayer {
DrawingExceptionMode = DrawingExceptionMode.DrawException
};
labelPrinterLayer.LoadFromViewModel(new TextElementViewModel(false)
{
Text = text, FontSize = 34
});
labelPrinterLayer.Open();
labelPrinterLayer.SetPosition(width, height, centerX, centerY, PrintingUnit.Inch);
return(labelPrinterLayer);
}