Public API and Backwards Incompatible Changes in Aspose.Slides for Java 15.1.0

This page lists all added classes, methods, properties and so on, any new restrictions and other changes introduced with the Aspose.Slides for Java 15.1.0 API.

There are known issues with some image bullets and WordArt objects which will be fixed in Aspose.Slides for Java 15.2.0.

Public API Changes

Fonts substitutions functinality has been added

The possibility to replace fonts globally across the presentation and temporary for rendering has been added.

New method getFontsManager() of Presentation class has been introduced. FontsManager class has following members:

IFontSubstRuleCollection getFontSubstRuleList() method

This is the collection of IFontSubstRule instances used to substitute fonts during rendering. IFontSubstRule has getSourceFont() and getDestFont() methods implementing IFontData interface and getReplaceFontCondition() method allowing to choose the condition of replacement (“WhenInaccessible” or “Always”).

IFontData[] getFonts() method can be used to retrieve all fonts used in the current presentation.

replaceFont(…) methods can be used to persistently replace a font in a presentation. 

The following example shows how to replace a font in a presentation:

 Presentation pres = new Presentation("PresContainsArialFont.pptx");

IFontData sourceFont = new FontData("Arial");

IFontData destFont = new FontData("Times New Roman");

pres.getFontsManager().replaceFont(sourceFont, destFont);

pres.save("PresContainsTimesNoewRomanFont.pptx", SaveFormat.Pptx);

Another example, shows font substitution for rendering when it is inaccessible:

Presentation pres = new Presentation("PresContainsSomeRareFontFont.pptx");

IFontData sourceFont = new FontData("SomeRareFont");

IFontData destFont = new FontData("Arial");

IFontSubstRule fontSubstRule = new FontSubstRule(

sourceFont, destFont, FontSubstCondition.WhenInaccessible);

IFontSubstRuleCollection fontSubstRuleCollection = new FontSubstRuleCollection();

fontSubstRuleCollection.add(fontSubstRule);

pres.getFontsManager().setFontSubstRuleList(fontSubstRuleCollection);

// Arial font will be used instead of SomeRareFont when inaccessible

pres.getSlides().get_Item(0).getThumbnail(1, 1);