Interface IImageSavingCallback

IImageSavingCallback interface

Represents a callback that is called to create resource to store images.

public interface IImageSavingCallback

Methods

Name	Description
ImageSaving(ImageSavingArgs)	The method to be called while saving of images.

Examples

Shows how to work with image saving callbacks.

[Test] 
public void ResourcePrefixForNestedResourcesExample()
{
    var project = new Project(DataDir + "Project1.mpp");
    var options = ResourcePrefixForNestedResources.GetSaveOptions(1);
    project.Save(OutDir + "document_out.html", options);
}

private class ResourcePrefixForNestedResources : ICssSavingCallback, IFontSavingCallback, IImageSavingCallback
{
    public void CssSaving(CssSavingArgs args)
    {
        if (!Directory.Exists(OutDir + "css/"))
        {
            Directory.CreateDirectory(OutDir + "css/");
        }

        var stream = new FileStream(OutDir + "css/" + args.FileName, FileMode.Create);
        args.Stream = stream;
        args.KeepStreamOpen = false;
        args.Uri = OutDir + "css/" + args.FileName;
    }

    public void FontSaving(FontSavingArgs args)
    {
        if (!Directory.Exists(OutDir + "fonts/"))
        {
            Directory.CreateDirectory(OutDir + "fonts/");
        }

        var stream = new FileStream(OutDir + "fonts/" + args.FileName, FileMode.Create);
        args.Stream = stream;
        args.KeepStreamOpen = false;
        args.Uri = OutDir + "fonts/" + args.FileName;
    }

    public void ImageSaving(ImageSavingArgs args)
    {
        if (!Directory.Exists(OutDir + "resources/"))
        {
            Directory.CreateDirectory(OutDir + "resources/");
        }

        if (!Directory.Exists(OutDir + "resources/nestedResources/"))
        {
            Directory.CreateDirectory(OutDir + "resources/nestedResources/");
        }

        if (args.FileName.EndsWith("png"))
        {
            var stream1 = new FileStream(OutDir + "resources/nestedResources/" + args.FileName, FileMode.Create);
            args.Stream = stream1;
            args.KeepStreamOpen = false;
            args.Uri = OutDir + "resources/" + args.FileName;

            // args.NestedUri = dataDir + "nestedResources/" + args.FileName;
        }
        else
        {
            var stream2 = new FileStream(OutDir + "resources/" + args.FileName, FileMode.Create);
            args.Stream = stream2;
            args.KeepStreamOpen = false;
            args.Uri = OutDir + "resources/" + args.FileName;
        }
    }

    public static HtmlSaveOptions GetSaveOptions(int pageNumber)
    {
        var options = new HtmlSaveOptions
                          {
                              Pages = new List<int>(),
                              IncludeProjectNameInPageHeader = false,
                              IncludeProjectNameInTitle = false,
                              PageSize = PageSize.A3,
                              Timescale = Timescale.ThirdsOfMonths,
                              ReduceFooterGap = true,
                              FontFaceTypes = FontFaceType.Ttf,
                              ExportCss = ResourceExportType.AsFile,
                              ExportFonts = ResourceExportType.AsFile,
                              ExportImages = ResourceExportType.AsFile
                          };

        var program = new ResourcePrefixForNestedResources();
        options.FontSavingCallback = program;
        options.CssSavingCallback = program;
        options.ImageSavingCallback = program;

        options.Pages.Clear();
        options.Pages.Add(pageNumber);

        if (!Directory.Exists(DataDir + "fonts"))
        {
            Directory.CreateDirectory(DataDir + "fonts");
        }

        if (!Directory.Exists(DataDir + "resources"))
        {
            Directory.CreateDirectory(DataDir + "resources");
        }

        if (!Directory.Exists(DataDir + "nestedResources"))
        {
            Directory.CreateDirectory(DataDir + "resources/nestedResources");
        }

        if (!Directory.Exists(DataDir + "css"))
        {
            Directory.CreateDirectory(DataDir + "css");
        }

        return options;
    }
}

See Also

• namespace Aspose.Tasks
• assembly Aspose.Tasks