private IntPtr RenderWindowsMetafilePict(TYMED tymed)
{
ComDebug.ReportInfo("GraphDocumentDataObject.RenderWindowsMetafilePict");
if (!(tymed == TYMED.TYMED_MFPICT))
{
throw new ArgumentException(nameof(tymed) + " is not TYMED_MFPICT");
}
if (null != _graphDocumentBitmapImage)
{
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();
return(DataObjectHelper.ConvertEnhancedMetafileToWindowsMetafilePict(hEmf, scaledDocSize.X, scaledDocSize.Y));
}
}
}
else
{
throw new InvalidProgramException("Please report this exception to the author of the program and describe the steps to reproduce the exception");
}
}
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);
}
}
private IntPtr RenderBitmapDIB(TYMED tymed)
{
ComDebug.ReportInfo("GraphDocumentDataObject.RenderBitmapDIB");
if (!(tymed == TYMED.TYMED_HGLOBAL))
{
throw new ArgumentException(nameof(tymed) + " is not TYMED_HGLOBAL");
}
if (null != _graphDocumentBitmapImage)
{
using (var convertedBitmap = GraphDocumentExportActions.ConvertBitmapToPixelFormat(_graphDocumentBitmapImage, System.Drawing.Imaging.PixelFormat.Format24bppRgb, _graphExportOptions.BackgroundColorForFormatsWithoutAlphaChannel))
{
return(DataObjectHelper.RenderDIBBitmapToHGLOBAL(convertedBitmap));
}
}
else
{
throw new InvalidProgramException("Please report this exception to the author of the program and describe the steps to reproduce the exception");
}
}