private BitmapFileSettings GetBitmapFileSettings()
{
BitmapFileSettings bitmapSettings = null;
var saveFileDialog = new SaveFileDialog
{
Title = "Save Spirograph Image File",
FileName = DefaultImageFileName,
Filter = BitmapFileSettings.FileFilters,
FilterIndex = PNGDefaultFileFiler,
InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments),
AddExtension = true,
OverwritePrompt = true,
ValidateNames = true,
};
bool?dialogResult = saveFileDialog.ShowDialog();
if (dialogResult.HasValue && dialogResult.Value == true)
{
var encoding = (BitmapEncoding)(saveFileDialog.FilterIndex - 1);
var imageFileName = saveFileDialog.FileName;
bitmapSettings = new BitmapFileSettings(encoding, imageFileName);
}
return(bitmapSettings);
}
private void SaveSpirographImage()
{
BitmapFileSettings bitmapSettings = GetBitmapFileSettings();
if (theSpirograph != null)
{
if (bitmapSettings != null)
{
theSpirograph.Save(SpiroCanvas,
bitmapSettings.Encoder,
bitmapSettings.BitmapFileName);
}
}
}