/// <summary>
/// Finishes off the Presentation (fills extra page)
/// </summary>
public void FinishPres()
{
objSlide = (Microsoft.Office.Interop.PowerPoint._Slide)objSlides._Index(sCount);
oCount = 1;
AddText("This deck generated by eFlash", "Comic Sans MS", 40, MsoTriState.msoTrue, MsoTriState.msoFalse, MsoTriState.msoFalse, 50, 50, 800, 150);
AddPic(Constant.ePath + "About.png", MsoTriState.msoFalse, MsoTriState.msoTrue, 200, 200, 350, 250);
//AddPic("C:\\Program Files\\eFlash\\Data\\Media\\About.png", MsoTriState.msoFalse, MsoTriState.msoTrue, 200, 200, 350, 250);
}
/// <summary>
/// Open a PPT deck and create a directory of jpg images, one for each slide in the deck.
/// </summary>
/// <param name="g"></param>
/// <param name="file"></param>
private void processPpt(Guid g, FileInfo file)
{
if (stopNow)
{
return;
}
if (pptApp == null)
{
try {
pptApp = new PowerPoint.Application();
// Check if PPT was already running.
pptAlreadyOpen = (pptApp.Visible == MsoTriState.msoTrue);
}
catch (Exception e) {
log.WriteLine("Failed to create PowerPoint application instance. " + e.ToString());
log.ErrorLevel = 6;
pptApp = null;
return;
}
}
try {
PowerPoint._Presentation ppPres = pptApp.Presentations.Open(file.FullName, MsoTriState.msoTrue,
MsoTriState.msoFalse, MsoTriState.msoFalse);
PowerPoint.Slides slides = ppPres.Slides;
String tempDirName = Utility.GetTempDir();
Directory.CreateDirectory(tempDirName);
int slideCount = slides.Count;
int ptStart = progressTracker.CurrentValue;
for (int i = 1; i <= slides.Count; i++)
{
if (stopNow)
{
break;
}
//The image looks much better and is reasonably small if we save to wmf format first, then
// convert to jpg. I guess the .Net jpeg encoder is better than the PPT encoder??
// Sometimes we may want to use the jpeg export with certain decks because we can get better
// fidelity with some less common symbols.
PowerPoint._Slide ppSlide = (PowerPoint._Slide)slides._Index(i);
String jpgfile = Path.Combine(tempDirName, "slide" + i.ToString() + ".jpg");
Image img = null;
string tmpfile = null;
if (useNativeJpegExport)
{
tmpfile = Path.Combine(tempDirName, "slidetmp" + i.ToString() + ".JPG");
ppSlide.Export(tmpfile, "JPG", 0, 0);
img = Image.FromFile(tmpfile);
}
else
{
tmpfile = Path.Combine(tempDirName, "slide" + i.ToString() + ".WMF");
ppSlide.Export(tmpfile, "WMF", 0, 0);
img = Image.FromFile(tmpfile);
}
try {
//The right shift is used to work around a CP3 issue: Some slide decks are shifted to the right, so we also
// need to do this to keep ink from being mis-aligned. As of 2013 this should no longer be needed when
// using a current version of CP3.
if (rightShift > 0)
{
Image shiftedImage;
RightImageShift(img, rightShift, out shiftedImage);
shiftedImage.Save(jpgfile, ImageFormat.Jpeg);
shiftedImage.Dispose();
}
else
{
img.Save(jpgfile, ImageFormat.Jpeg);
}
}
catch (Exception e) {
log.WriteLine("Failed to save image for slide " + jpgfile + " exception: " + e.ToString());
log.ErrorLevel = 6;
}
img.Dispose();
System.IO.File.Delete(tmpfile);
progressTracker.CurrentValue = ((i * 100) / slideCount) + ptStart;
}
ppPres.Close();
ppPres = null;
this.outputDirs.Add(g, tempDirName);
}
catch (Exception e) {
log.WriteLine(e.ToString());
log.ErrorLevel = 6;
}
}