private void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
var file = new FileInfo("Test.pptx");
var tf = @"F:\temp\KewalnaidiNaborereefal.pptx";
if (File.Exists(tf))
{
file = new FileInfo(tf);
}
long lastAllocatedBytesForCurrentThread;
using var presentationDocument = PresentationDocument.Open(file.FullName, false);
var slide = presentationDocument.PresentationPart !.SlideParts.First().Slide;
var graphicFrame = slide.CommonSlideData !.ShapeTree !.GetFirstChild <GraphicFrame>() !;
var graphic = graphicFrame.Graphic !;
var graphicData = graphic.GraphicData !;
var alternateContent = graphicData.GetFirstChild <AlternateContent>() !;
var choice = alternateContent.GetFirstChild <AlternateContentChoice>() !;
var oleObject = choice.GetFirstChild <OleObject>() !;
Debug.Assert(oleObject.GetFirstChild <OleObjectEmbed>() != null);
var id = oleObject.Id !;
var part = slide.SlidePart !.GetPartById(id !);
Debug.Assert(part.ContentType == "application/vnd.openxmlformats-officedocument.oleObject");
var allocatedBytesForCurrentThread = GC.GetAllocatedBytesForCurrentThread();
var s = part.GetStream();
lastAllocatedBytesForCurrentThread = GC.GetAllocatedBytesForCurrentThread();
Debug.WriteLine($"GetStream {lastAllocatedBytesForCurrentThread - allocatedBytesForCurrentThread}");
allocatedBytesForCurrentThread = lastAllocatedBytesForCurrentThread;
var tempFolder = @"F:\temp";
if (!Directory.Exists(tempFolder))
{
tempFolder = System.IO.Path.GetTempPath();
}
tempFolder = System.IO.Path.Combine(tempFolder, System.IO.Path.GetRandomFileName());
Directory.CreateDirectory(tempFolder);
//CompoundFileUnzipper.Unzip(s, tempFolder, byteArrayPool);
// 为了性能考虑，不再使用内存方式，全部写入到文件
//var forwardSeekStream = new ForwardSeekStream(s, byteArrayPool);
var oleFile = System.IO.Path.Combine(tempFolder, System.IO.Path.GetRandomFileName());
using var oleFileStream = new FileStream(oleFile, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None,
bufferSize: 4096, FileOptions.RandomAccess);
s.CopyTo(oleFileStream);
oleFileStream.Position = 0;
//Origin(forwardSeekStream);
var cf = new ReadonlyCompoundFile(oleFileStream);
lastAllocatedBytesForCurrentThread = GC.GetAllocatedBytesForCurrentThread();
Debug.WriteLine($"CompoundFile {lastAllocatedBytesForCurrentThread - allocatedBytesForCurrentThread}");
allocatedBytesForCurrentThread = lastAllocatedBytesForCurrentThread;
var packageStream = cf.RootStorage.GetStream("Package");
lastAllocatedBytesForCurrentThread = GC.GetAllocatedBytesForCurrentThread();
Debug.WriteLine($"GetStream {lastAllocatedBytesForCurrentThread - allocatedBytesForCurrentThread}");
allocatedBytesForCurrentThread = lastAllocatedBytesForCurrentThread;
//var tempFolder = @"F:\temp";
//if (!Directory.Exists(tempFolder))
//{
// tempFolder = System.IO.Path.GetTempPath();
//}
var xlsxFile = System.IO.Path.Combine(tempFolder, System.IO.Path.GetRandomFileName() + ".xlsx");
using (var fileStream = File.OpenWrite(xlsxFile))
{
//fileStream.Write(packageStream.GetData().AsSpan());
cf.CopyTo(packageStream, fileStream);
}
//var fakeStream = new FakeStream();
//cf.CopyTo(packageStream, fakeStream, byteArrayPool);
//using (var fileStream = File.OpenWrite(xlsxFile))
//{
// fileStream.Write(packageStream.GetData().AsSpan());
//}
//using var spreadsheetDocument = SpreadsheetDocument.Open(xlsxFile, false);
//var sheets = spreadsheetDocument.WorkbookPart!.Workbook.Sheets;
lastAllocatedBytesForCurrentThread = GC.GetAllocatedBytesForCurrentThread();
Debug.WriteLine($"CopyTo {lastAllocatedBytesForCurrentThread - allocatedBytesForCurrentThread}");
allocatedBytesForCurrentThread = lastAllocatedBytesForCurrentThread;
//// OpenMcdf.CFException:“Cannot load a non-seekable Stream”
//var compoundFile = new CompoundFile(part.GetStream(FileMode.Open));
//var oleFile = System.IO.Path.Combine(tempFolder, System.IO.Path.GetRandomFileName());
//using (var fileStream = File.OpenWrite(oleFile))
//{
// using var stream = part.GetStream(FileMode.Open);
// stream.CopyTo(fileStream);
//}
//var compoundFile = new CompoundFile(oleFile);
//var packageStream = compoundFile.RootStorage.GetStream("Package");
//var xlsxFile = System.IO.Path.Combine(tempFolder, System.IO.Path.GetRandomFileName() + ".xlsx");
//using (var fileStream = File.OpenWrite(xlsxFile))
//{
// fileStream.Write(packageStream.GetData().AsSpan());
//}
using var spreadsheetDocument = SpreadsheetDocument.Open(xlsxFile, false);
var sheets = spreadsheetDocument.WorkbookPart !.Workbook.Sheets;
}
private void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
var file = new FileInfo("Test.pptx");
using var presentationDocument = PresentationDocument.Open(file.FullName, false);
var slide = presentationDocument.PresentationPart !.SlideParts.First().Slide;
var shape = slide.CommonSlideData !.ShapeTree !.GetFirstChild <Shape>() !;
/*
* <p:sp>
* <p:nvSpPr>
* <p:cNvPr id="4" name="文本框 3" />
* <p:cNvSpPr txBox="1" />
* <p:nvPr />
* </p:nvSpPr>
* <p:spPr>
* <a:xfrm>
* <a:off x="4168346" y="914401" />
* <a:ext cx="6096000" cy="3170090" />
* </a:xfrm>
* <a:prstGeom prst="rect">
* <a:avLst />
* </a:prstGeom>
* <a:noFill />
* </p:spPr>
* <p:txBody>
* <a:bodyPr wrap="square" rtlCol="0">
* <a:normAutofit fontScale="60000"/>
* </a:bodyPr>
* <a:lstStyle />
* <a:p>
* <a:r>
* <a:rPr lang="zh-CN" altLang="en-US" sz="10000">
* </a:rPr>
* <a:t>一行文本</a:t>
* </a:r>
* <a:endParaRPr lang="en-US" sz="10000" dirty="0" />
* </a:p>
* </p:txBody>
* </p:sp>
*/
var shapeProperties = shape.ShapeProperties !;
var presetGeometry = shapeProperties.GetFirstChild <PresetGeometry>() !;
// 这是一个文本框
Debug.Assert(presetGeometry.Preset?.Value == ShapeTypeValues.Rectangle);
Debug.Assert(shapeProperties.GetFirstChild <NoFill>() is not null);
var textBody = shape.TextBody !;
Debug.Assert(textBody != null);
var textBodyProperties = textBody.BodyProperties !;
Debug.Assert(textBodyProperties != null);
var normalAutoFit = textBodyProperties.GetFirstChild <NormalAutoFit>() !;
Debug.Assert(normalAutoFit != null);
Percentage fontScale = normalAutoFit.FontScale is null
? Percentage.FromDouble(1)
: new Percentage(normalAutoFit.FontScale);
foreach (var paragraph in textBody.Elements <DocumentFormat.OpenXml.Drawing.Paragraph>())
{
// 一个文本里面有很多段落
// 段落里面，文本有不同的样式，如一段可以有不同加粗的文本
// 相同的样式的文本放在一个 TextRun 里面。不同的样式的文本放在不同的 TextRun 里面
// 这个文本段落是没有属性的，为了方便样式，就不写代码
//if (paragraph.ParagraphProperties != null)
foreach (var run in paragraph.Elements <DocumentFormat.OpenXml.Drawing.Run>())
{
var runProperties = run.RunProperties !;
var fontSize = new PoundHundredfold(runProperties.FontSize !.Value).ToPound();
// 默认字体前景色是黑色
var text = run.Text !.Text;
var textBlock = new TextBlock()
{
Text = text,
FontSize = fontSize.ToPixel().Value *fontScale.DoubleValue,
FontFamily = new FontFamily("宋体"),
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
};
Root.Children.Add(textBlock);
}
}
}
