public void TestAutoShapeFonts()
{
string fontName = "Arial";
float fontSize = 16.5f;
//Load update and save the file
using (var presentation = new Presentation())
{
presentation.LoadFromFile("../../../TestFiles/TestFile - Assorted.pptx");
PowerPointFontUtility.UpdateAllFontStyle(presentation, fontName, fontSize);
presentation.SaveToFile("../../../OutputFile/OutputFile - Assorted.pptx", FileFormat.Auto);
}
//Load the processed file and inspect for the values
using (var presentation = new Presentation())
{
presentation.LoadFromFile("../../../OutputFile/OutputFile - Assorted.pptx");
foreach (ISlide slide in presentation.Slides)
{
if (slide.Shapes != null)
{
foreach (var shape in slide.Shapes)
{
switch (shape)
{
case IAutoShape autoShape:
if (autoShape?.TextFrame != null)
{
TextFrameAssert(autoShape?.TextFrame, fontName, fontSize);
}
break;
case ISmartArt smartArt:
if (smartArt.Nodes != null)
{
foreach (ISmartArtNode node in smartArt.Nodes)
{
RecursiveNodeAssertion(node, fontName, fontSize);
}
}
break;
case IChart chart:
ChartAssert(chart, fontName, fontSize);
break;
}
}
}
}
}
}
public IActionResult ModifyText(IFormFile file, string fontName, float fontSize)
{
string outputFileRoute = string.Empty;
using (var presentation = new Presentation())
{
//Load uploaded file
presentation.LoadFromStream(file.OpenReadStream(), FileFormat.Auto);
//Update all fonts
PowerPointFontUtility.UpdateAllFontStyle(presentation, fontName, fontSize);
//Generate filename
string fileOutputName = $"{Config.OutputPrefix}-{DateTime.Now.ToFileTime()}.pptx";
//Save to new file
presentation.SaveToFile($"{Config.OutputFolder}/{fileOutputName}", FileFormat.Auto);
outputFileRoute = $"{Config.OutputRoute}/{fileOutputName}";
}
return(Ok(outputFileRoute));
}