public void EmptyPowerPoint()
{
const string file = "../../files/EmptyPowerPoint.pptx";
const string thumbnail_empty_png = "../../files/thumbnail_empty.png";
const string thumbnail_empty_output_png = "../../files/thumbnail_empty_output.png";
Pptx pptx = new Pptx(file, FileAccess.Read);
int nbSlides = pptx.SlidesCount();
Assert.AreEqual(0, nbSlides);
byte[] thumbnail_empty_output = pptx.GetThumbnail();
File.WriteAllBytes(thumbnail_empty_output_png, thumbnail_empty_output);
byte[] thumbnail_empty = File.ReadAllBytes(thumbnail_empty_png);
CollectionAssert.AreEqual(thumbnail_empty, thumbnail_empty_output);
pptx.Close();
}
public void GetThumbnail()
{
string file = "../../files/GetTexts.pptx";
const string thumbnail_default_png = "../../files/thumbnail_default.png";
const string thumbnail_default_output_png = "../../files/thumbnail_default_output.png";
const string thumbnail_128x96_png = "../../files/thumbnail_128x96.png";
const string thumbnail_128x96_output_png = "../../files/thumbnail_128x96_output.png";
const string thumbnail_512x384_png = "../../files/thumbnail_512x384.png";
const string thumbnail_512x384_output_png = "../../files/thumbnail_512x384_output.png";
Pptx pptx = new Pptx(file, FileAccess.Read);
byte[] thumbnail_default_output = pptx.GetThumbnail(); // Default size
File.WriteAllBytes(thumbnail_default_output_png, thumbnail_default_output);
byte[] thumbnail_128x96_output = pptx.GetThumbnail(new Size(128, 96));
File.WriteAllBytes(thumbnail_128x96_output_png, thumbnail_128x96_output);
byte[] thumbnail_512x384_output = pptx.GetThumbnail(new Size(512, 384));
File.WriteAllBytes(thumbnail_512x384_output_png, thumbnail_512x384_output);
// Check the generated thumbnail are ok
byte[] thumbnail_default = File.ReadAllBytes(thumbnail_default_png);
CollectionAssert.AreEqual(thumbnail_default, thumbnail_default_output);
byte[] thumbnail_128x96 = File.ReadAllBytes(thumbnail_128x96_png);
CollectionAssert.AreEqual(thumbnail_128x96, thumbnail_128x96_output);
byte[] thumbnail_512x384 = File.ReadAllBytes(thumbnail_512x384_png); // Will look blurry
CollectionAssert.AreEqual(thumbnail_512x384, thumbnail_512x384_output);
pptx.Close();
// Test a 16/10 portrait PowerPoint file
file = "../../files/portrait_16_10.pptx";
const string thumbnail_portrait_16_10_png = "../../files/thumbnail_portrait_16_10.png";
const string thumbnail_portrait_16_10_output_png = "../../files/thumbnail_portrait_16_10_output.png";
pptx = new Pptx(file, FileAccess.Read);
byte[] thumbnail_portrait_16_10_output = pptx.GetThumbnail(); // Default size
File.WriteAllBytes(thumbnail_portrait_16_10_output_png, thumbnail_portrait_16_10_output);
byte[] thumbnail_portrait_16_10 = File.ReadAllBytes(thumbnail_portrait_16_10_png);
CollectionAssert.AreEqual(thumbnail_portrait_16_10, thumbnail_portrait_16_10_output);
pptx.Close();
}