public static void ShowFileExportMetafileDialog(this GraphDocument doc)
{
var opt = new GraphExportOptions();
opt.TrySetImageAndPixelFormat(ImageFormat.Emf, PixelFormat.Format32bppArgb);
ShowFileExportDialog(doc, opt);
}
private void EnsureDropFileCreated()
{
var fileExtension = GraphExportOptions.GetDefaultFileNameExtension(_graphExportOptions.DropFileImageFormat);
_graphDocumentDropdownFileName = System.IO.Path.Combine(System.IO.Path.GetTempPath(), "AltaxoClipboardImage" + fileExtension);
if (System.IO.File.Exists(_graphDocumentDropdownFileName))
{
try
{
System.IO.File.Delete(_graphDocumentDropdownFileName);
}
catch (Exception)
{
_graphDocumentDropdownFileName = null;
return;
}
}
if (_graphExportOptions.DropFileImageFormat == System.Drawing.Imaging.ImageFormat.Emf)
{
if (!(null != _graphDocumentMetafileImage))
{
throw new InvalidOperationException(nameof(_graphDocumentMetafileImage) + " should be != null");
}
var clonedMF = (System.Drawing.Imaging.Metafile)_graphDocumentMetafileImage.Clone(); // have to clone metafile because after calling GetHenhmetafile() metafile would be destroyed
DataObjectHelper.SaveMetafileToDisk(clonedMF.GetHenhmetafile(), _graphDocumentDropdownFileName);
}
else if (_graphExportOptions.DropFileImageFormat == System.Drawing.Imaging.ImageFormat.Wmf)
{
using (var rgbBitmap = GraphDocumentExportActions.ConvertBitmapToPixelFormat(_graphDocumentBitmapImage, System.Drawing.Imaging.PixelFormat.Format24bppRgb, _graphExportOptions.BackgroundColorForFormatsWithoutAlphaChannel))
{
var scaledDocSize = _graphDocumentSize * _graphExportOptions.OutputScalingFactor;
using (var enhancedMetafile = GraphDocumentExportActions.RenderAsEnhancedMetafileBitmapFormat(rgbBitmap, scaledDocSize))
{
var hEmf = enhancedMetafile.GetHenhmetafile();
var bytes = DataObjectHelper.ConvertEnhancedMetafileToWindowsMetafileBytes(hEmf);
var placeableHeaderBytes = DataObjectHelper.GetWmfPlaceableHeaderBytes(scaledDocSize);
using (var stream = new System.IO.FileStream(_graphDocumentDropdownFileName, System.IO.FileMode.Create, System.IO.FileAccess.Write, System.IO.FileShare.Read))
{
stream.Write(placeableHeaderBytes, 0, placeableHeaderBytes.Length);
stream.Write(bytes, 0, bytes.Length);
}
}
}
}
else // bitmap format
{
var bitmapToSave =
_graphExportOptions.DropFileBitmapPixelFormat == _graphDocumentBitmapImage.PixelFormat ?
_graphDocumentBitmapImage :
GraphDocumentExportActions.ConvertBitmapToPixelFormat(_graphDocumentBitmapImage, _graphExportOptions.DropFileBitmapPixelFormat, _graphExportOptions.BackgroundColorForFormatsWithoutAlphaChannel);
bitmapToSave.Save(_graphDocumentDropdownFileName, _graphExportOptions.DropFileImageFormat);
}
}
public static void ShowFileExportTiffDialog(this GraphDocument doc)
{
var opt = new GraphExportOptions();
opt.TrySetImageAndPixelFormat(ImageFormat.Tiff, PixelFormat.Format32bppArgb);
opt.SourceDpiResolution = 300;
opt.DestinationDpiResolution = 300;
ShowFileExportDialog(doc, opt);
}
public static Bitmap RenderAsBitmap(this GraphDocument document, EmbeddedObjectRenderingOptions renderingOptions, PixelFormat pixelFormat = PixelFormat.Format32bppArgb)
{
BrushX opaqueGround = null;
if (!GraphExportOptions.HasPixelFormatAlphaChannel(pixelFormat))
{
opaqueGround = new BrushX(renderingOptions.BackgroundColorForFormatsWithoutAlphaChannel);
}
return(RenderAsBitmap(document, opaqueGround, renderingOptions.BackgroundBrush, pixelFormat, renderingOptions.SourceDpiResolution, renderingOptions.SourceDpiResolution * renderingOptions.OutputScalingFactor));
}
public static void ShowFileExportSpecificDialog(this GraphDocumentBase doc)
{
object resopt = _graphExportOptionsToFile;
if (Current.Gui.ShowDialog(ref resopt, "Choose export options"))
{
_graphExportOptionsToFile = (GraphExportOptions)resopt;
}
else
{
return;
}
ShowFileExportDialog(doc, _graphExportOptionsToFile);
}
/// <summary>Shows the dialog to choose the graph export options, and then the multi file export dialog.</summary>
/// <param name="documents">List with graph documents to export.</param>
public static void ShowExportMultipleGraphsDialogAndExportOptions(IEnumerable <Graph.GraphDocumentBase> documents)
{
object resopt = _graphExportOptionsToFile;
if (Current.Gui.ShowDialog(ref resopt, "Choose export options"))
{
_graphExportOptionsToFile = (GraphExportOptions)resopt;
}
else
{
return;
}
ShowExportMultipleGraphsDialog(documents);
}
public static void ShowFileExportDialog(this GraphDocumentBase doc, GraphExportOptions graphExportOptions)
{
var saveOptions = new Altaxo.Gui.SaveFileOptions();
var list = GetFileFilterString(graphExportOptions.ImageFormat);
foreach (var entry in list)
{
saveOptions.AddFilter(entry.Key, entry.Value);
}
saveOptions.FilterIndex = 0;
saveOptions.RestoreDirectory = true;
if (Current.Gui.ShowSaveFileDialog(saveOptions))
{
using (Stream myStream = new FileStream(saveOptions.FileName, FileMode.Create, FileAccess.ReadWrite, FileShare.Read)) // we need FileAccess.ReadWrite when exporting to EMF/WMF format
{
var exporter = Current.ProjectService.GetProjectItemImageExporter(doc);
exporter?.ExportAsImageToStream(doc, graphExportOptions, myStream);
myStream.Close();
} // end openfile ok
} // end dlgresult ok
}
private static string InternalAddClipboardDropDownList(Altaxo.Gui.IClipboardSetDataObject dao, System.Drawing.Bitmap bmp, GraphExportOptions options)
{
string filepath = System.IO.Path.GetTempPath();
string filename = filepath + "AltaxoGraphCopyPage" + options.GetDefaultFileNameExtension();
;
if (System.IO.File.Exists(filename))
{
System.IO.File.Delete(filename);
}
bmp.Save(filename, options.ImageFormat);
var coll = new System.Collections.Specialized.StringCollection
{
filename
};
dao.SetFileDropList(coll);
return(filename);
}
private static string InternalAddClipboardDropDownList(Altaxo.Gui.IClipboardSetDataObject dao, System.Drawing.Bitmap bmp, GraphExportOptions options)
{
string filepath = System.IO.Path.GetTempPath();
string filename = filepath + "AltaxoGraphCopyPage" + options.GetDefaultFileNameExtension(); ;
if (System.IO.File.Exists(filename))
System.IO.File.Delete(filename);
bmp.Save(filename, options.ImageFormat);
System.Collections.Specialized.StringCollection coll = new System.Collections.Specialized.StringCollection();
coll.Add(filename);
dao.SetFileDropList(coll);
return filename;
}
