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Aspose.Slides for CPP 19.6 Release Notes

This page contains release notes for Aspose.Slides for CPP 19.6

Supported Platforms

Aspose.Slides for C++ for Windows (Microsoft Visual C++).
Aspose.Slides for C++ for Linux (Clang).

Key	Summary	Category
SLIDESCPP-1816	Use Aspose.Slides for .NET 19.6 features	Feature
SLIDESCPP-41142	Support for setting lock Aspect Ratio for text box	Feature
SLIDESNET-41092	IColorFormat.Color doesn’t return effective color	Feature
SLIDESNET-34681	Support for progress in percentage for PDF conversion	Feature
SLIDESCPP-41101	Implement a progress in percentage for PDF conversion	Feature
SLIDESCPP-40958	Option for making every page self-sufficient when saving presentation as HTML	Feature
SLIDESNET-16733	Fusion Charts support in Aspose.Slides	Feature
SLIDESNET-31569	Adding custom lines in PowerPoint charts	Feature
SLIDESNET-40672	Support for extracting VBA macros from presentation	Feature
SLIDESNET-30385	Auto-Refresh Chart with Editing data	Feature
SLIDESNET-18215	Support for ComponentArt chart objects in Aspose.Slides	Feature
SLIDESNET-12438	SmartArt and Chart Object implementation for PPTX -> PDF	Enhancement
SLIDESNET-41149	Generating Box and Whisker Chart	Enhancement
SLIDESCPP-1869	Improve thumbnails rendering quality (v19.6)	Enhancement

Public API Changes

BackgroundEffectiveData and IBackgroundEffectiveData classes have been added

Aspose::Slides::IBackgroundEffectiveData interface class and it’s implementation by Aspose::Slides::BackgroundEffectiveData class have been added. They represent effective background of slide and contain information about effective fill format and effective effect format.

CreateBackgroundEffective() method has been added to IBaseSlide class

CreateBackgroundEffective() method has been added to IBaseSlide and BaseSlide classes. Using this method allows to get effective values for slide’s background.

Sample code below outputs effective background fill:

auto pres = System::MakeObject<Presentation>(u"SamplePresentation.pptx");
System::SharedPtr<IBackgroundEffectiveData> effBackground = pres->get_Slides()->idx_get(0)->CreateBackgroundEffective();
if (effBackground->get_FillFormat()->get_FillType() == Aspose::Slides::FillType::Solid)
{
    System::Console::WriteLine(System::String(u"Fill color: ") + effBackground->get_FillFormat()->get_SolidFillColor());
}
else
{
    System::Console::WriteLine(System::String(u"Fill type: ") + System::ObjectExt::ToString(effBackground->get_FillFormat()->get_FillType()));
}

IProgressCallback class has been added

IProgressCallback class has been added to ISaveOptions and SaveOptions classes. IProgressCallback interface class represents a callback object for saving progress updates in percentage.

Code snippets below show how to use IProgressCallback interface class:

auto presentation = System::MakeObject<Presentation>(fileName);
System::SharedPtr<ISaveOptions> saveOptions = System::MakeObject<PdfOptions>();
saveOptions->set_ProgressCallback(System::MakeObject<CloningTests::ExportProgressHandler>());
presentation->Save(pdfFileName, Aspose::Slides::Export::SaveFormat::Pdf, saveOptions);

class ExportProgressHandler : public Aspose::Slides::IProgressCallback
{
public:
    void Reporting(double progressValue)
    {
        //...
    }
};

The following methods of the INotesSlide class have been removed:

System::SharedPtr<System::Drawing::Bitmap> GetThumbnail(float scaleX, float scaleY);
System::SharedPtr<System::Drawing::Bitmap> GetThumbnail(System::Drawing::Size imageSize);

Use ISlide::GetThumbnail() method with parameter of type INotesCommentsLayoutingOptions instead.

The following methods of the ISlide class have been removed:

void RenderToGraphics(bool withNotes, System::SharedPtr<System::Drawing::Graphics> graphics, int32_t width, int32_t height);
void RenderToGraphics(bool withNotes, System::SharedPtr<System::Drawing::Graphics> graphics, float scale);
void RenderToGraphics(bool withNotes, System::SharedPtr<System::Drawing::Graphics> graphics);

Use RenderToGraphics() method with parameter of type INotesCommentsLayoutingOptions instead.

The following methods of the IHtmlOptions, IPdfOptions, ISwfOptions and ITiffOptions classes have been removed:

bool get_IncludeComments();
void set_IncludeComments(bool value);

Use INotesCommentsLayoutingOptions class instead.

PdfNotes, TiffNotes, SwfNotes and HtmlNotes values have been removed from the SaveFormat enum class. Use specific options with INotesCommentsLayoutingOptions element for saving presentation instead.

Pot value has been added to LoadFormat and SaveFormat enum classes

The new Pot value has been added to Aspose::Slides::LoadFormat and Aspose::Slides::SaveFormat enum classes. This value represents Microsoft PowerPoint 97-2003 Presentation template format.

Support of management images as BLOBs has been added

Since version 19.6 Aspose.Slides supports managing of presentation images as BLOB.

Also the new method has been added to IImageCollection and ImageCollection classes to support adding large image as streams to treat them as BLOBs:

System::SharedPtr<IPPImage> AddImage(System::SharedPtr<System::IO::Stream> stream, LoadingStreamBehavior loadingStreamBehavior);

Adding new image as BLOB to the presentation This example demonstrates how to include the large BLOB (image) and prevent a high memory consumption.

void AddingNewBlobImageToPresentation()
{
    // supposed we have the large image file we want to include into the presentation
    const System::String pathToLargeImage = u"largeImage.png";
    
    // create a new presentation which will contain this image
    auto pres = System::MakeObject<Presentation>();

    auto fileStream = System::MakeObject<System::IO::FileStream>(pathToLargeImage, System::IO::FileMode::Open);

    // let's add the image to the presentation - we choose KeepLocked behavior, because we not
    // have an intent to access the "largeImage.png" file.
    auto img = pres->get_Images()->AddImage(fileStream, Aspose::Slides::LoadingStreamBehavior::KeepLocked);

    pres->get_Slides()->idx_get(0)->get_Shapes()->AddPictureFrame(Aspose::Slides::ShapeType::Rectangle, 0.0f, 0.0f, 300.0f, 200.0f, img);
    // save the presentation. Despite that the output presentation will be
    // large, the memory consumption will be low the whole lifetime of the pres object
    pres->Save(u"presentationWithLargeImage.pptx", Aspose::Slides::Export::SaveFormat::Pptx);
}