public static DocumentPaginator GetDocumentPaginator(PrintConfig config)
{
switch (config.DataSourceType)
{
case DataSourceTypeDefine.DataTable:
return(new DataTableDocumentPaginator(config));
case DataSourceTypeDefine.Image:
return(new ImageDocumentPaginator(config));
case DataSourceTypeDefine.Control:
return(new ImageDocumentPaginator(config));
default:
return(null);
}
}
public static void PrintControl(FrameworkElement element)
{
//将控件转化为图片...
var rt = new RenderTargetBitmap((int)element.ActualWidth, (int)element.ActualHeight, 96, 96, PixelFormats.Pbgra32);
rt.Render(element);
var encoder = new PngBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(rt));
var bitmapImage = new BitmapImage();
using (Stream stream = new MemoryStream())
{
encoder.Save(stream);
stream.Seek(0, SeekOrigin.Begin);
stream.Position = 0;
bitmapImage.BeginInit();
bitmapImage.CacheOption = BitmapCacheOption.OnLoad;
bitmapImage.StreamSource = stream;
bitmapImage.EndInit();
}
var config = new PrintConfig()
{
DataSource = bitmapImage,
DataSourceType = DataSourceTypeDefine.Image
};
var viewModel = new PrintPreviewViewModel(config);
var view = new PrintPreviewView(viewModel);
view.ShowDialog();
}
