Basic FileType plugin guidance

[ArgusMagnus]

Is there a Basic documentation/how to for writing FileType plugins?

I've tried with the help of examples found online and based on the source of plugins like TinyPNG, but I cannot get PDN to Show me my plugin when I click "Save as...".

 

This is what I have so far, any help would be appreciated. (It's a save-only plugin):

 

public sealed class TestFileType : FileType, IFileTypeFactory
    {
        TestFileType()
            : base("Test", FileTypeFlags.SupportsSaving | FileTypeFlags.SavesWithProgress, new[] { ".test" }) { }

        protected override Document OnLoad(Stream input)
        {
            return null;
        }

        protected override void OnSave(Document input, Stream output, SaveConfigToken token, Surface surface, ProgressEventHandler callback)
        {
            // Do save operation...

            base.OnSave(input, output, token, surface, callback);
        }

        FileType[] IFileTypeFactory.GetFileTypeInstances()
        {
            return new[] { new TestFileType() };
        }
    }

 

Edited October 10, 2018 by ArgusMagnus

[toe_head2001]

3 minutes ago, ArgusMagnus said:

public sealed class TestFileType : FileType, IFileTypeFactory

 

I may be mistaken, but I believe your filetype class should not be inheriting from both FileType & IFileTypeFactory. You need to create a class for both of them.

[null54]

15 minutes ago, toe_head2001 said:

I may be mistaken, but I believe your filetype class should not be inheriting from both FileType & IFileTypeFactory. You need to create a class for both of them.

 

Inheriting from both FileType & IFileTypeFactory is fine, my WebP FileType does that for instance.

The problem is that @ArgusMagnus is missing the public modifier on the constructor.

 

public sealed class TestFileType : FileType, IFileTypeFactory
    {
        public TestFileType()
            : base("Test", FileTypeFlags.SupportsSaving | FileTypeFlags.SavesWithProgress, new[] { ".test" }) { }

        protected override Document OnLoad(Stream input)
        {
            return null;
        }

        protected override void OnSave(Document input, Stream output, SaveConfigToken token, Surface surface, ProgressEventHandler callback)
        {
            // Do save operation...

            base.OnSave(input, output, token, surface, callback);
        }

        FileType[] IFileTypeFactory.GetFileTypeInstances()
        {
            return new[] { new TestFileType() };
        }
    }

 

[ArgusMagnus]

ah.. I feel stupid..

 

Thanks for the quick Responses!