Create or Manage PowerPoint SmartArt Shape Node in Java

Add SmartArt Node in PowerPoint Presentation using Java

Aspose.Slides for Java has provided the simplest API to manage the SmartArt shapes in an easiest way. The following sample code will help to add node and child node inside SmartArt shape.

1. Create an instance of Presentation class and load the presentation with SmartArt Shape.
2. Obtain the reference of first slide by using its Index.
3. Traverse through every shape inside first slide.
4. Check if shape is of SmartArt type and Typecast selected shape to SmartArt if it is SmartArt.
5. Add a new Node in SmartArt shape NodeCollection and set the text in TextFrame.
6. Now, Add a Child Node in newly added SmartArt Node and set the text in TextFrame
7. Save the Presentation.

// Load the desired the presentation
Presentation pres = new Presentation("SimpleSmartArt.pptx");
try {
    // Traverse through every shape inside first slide
    for (IShape shape : pres.getSlides().get_Item(0).getShapes()) 
    {
        // Check if shape is of SmartArt type
        if (shape instanceof SmartArt) 
        {
            // Typecast shape to SmartArt
            SmartArt smart = (SmartArt) shape;
    
            // Adding a new SmartArt Node
            SmartArtNode TemNode = (SmartArtNode) smart.getAllNodes().addNode();
    
            // Adding text
            TemNode.getTextFrame().setText("Test");
    
            // Adding new child node in parent node. It will be added in the end of collection
            SmartArtNode newNode = (SmartArtNode) TemNode.getChildNodes().addNode();
    
            // Adding text
            newNode.getTextFrame().setText("New Node Added");
        }
    }
    
    // Saving Presentation
    pres.save("AddSmartArtNode.pptx", SaveFormat.Pptx);
} finally {
    if (pres != null) pres.dispose();
}

Add SmartArt Node at Specific Position

In the following sample code we have explained how to add the child nodes belonging to respective nodes of SmartArt shape at particular position.

1. Create an instance of Presentation class.
2. Obtain the reference of first slide by using its Index.
3. Add a StackedList type SmartArt shape in accessed slide.
4. Access the first node in added SmartArt shape
5. Now, add the Child Node for selected Node at position 2 and set its text.
6. Save the Presentation

// Creating a presentation instance
Presentation pres = new Presentation();
try {
    // Access the presentation slide
    ISlide slide = pres.getSlides().get_Item(0);

    // Add Smart Art IShape
    ISmartArt smart = slide.getShapes().addSmartArt(0, 0, 400, 400, SmartArtLayoutType.StackedList);

    // Accessing the SmartArt node at index 0
    ISmartArtNode node = smart.getAllNodes().get_Item(0);

    // Adding new child node at position 2 in parent node
    SmartArtNode chNode = (SmartArtNode) ((SmartArtNodeCollection) node.getChildNodes()).addNodeByPosition(2);

    // Add Text
    chNode.getTextFrame().setText("Sample Text Added");

    // Save Presentation
    pres.save("AddSmartArtNodeByPosition.pptx", SaveFormat.Pptx);
} finally {
    if (pres != null) pres.dispose();
}

Access SmartArt Node in PowerPoint Presentation using Java

The following sample code will help to access nodes inside SmartArt shape. Please note that you cannot change the LayoutType of the SmartArt as it is read only and is set only when the SmartArt shape is added.

1. Create an instance of Presentation class and load the presentation with SmartArt Shape.
2. Obtain the reference of first slide by using its Index.
3. Traverse through every shape inside first slide.
4. Check if shape is of SmartArt type and Typecast selected shape to SmartArt if it is SmartArt.
5. Traverse through all Nodes inside SmartArt Shape.
6. Access and display information like SmartArt Node position, level and Text.

// Instantiate Presentation Class
Presentation pres = new Presentation("SmartArtShape.pptx");
try {
    // Get first slide
    ISlide slide = pres.getSlides().get_Item(0);
    
    // Traverse through every shape inside first slide
    for (IShape shape : slide.getShapes()) 
    {
        // Check if shape is of SmartArt type
        if (shape instanceof ISmartArt) 
        {
            // Typecast shape to SmartArt
            ISmartArt smart = (ISmartArt) shape;
    
            // Traverse through all nodes inside SmartArt
            for (int i = 0; i < smart.getAllNodes().size(); i++) 
            {
                // Accessing SmartArt node at index i
                SmartArtNode node = (SmartArtNode) smart.getAllNodes().get_Item(i);
    
                // Printing the SmartArt node parameters
                System.out.print(node.getTextFrame().getText() + " " + node.getLevel() + " " + node.getPosition());
            }
        }
    }
} finally {
    if (pres != null) pres.dispose();
}

Access SmartArt Child Node

The following sample code will help to access the child nodes belonging to respective nodes of SmartArt shape.

1. Create an instance of Presentation class and load the presentation with SmartArt Shape.
2. Obtain the reference of first slide by using its Index.
3. Traverse through every shape inside first slide.
4. Check if shape is of SmartArt type and Typecast selected shape to SmartArt if it is SmartArt.
5. Traverse through all Nodes inside SmartArt Shape.
6. For every selected SmartArt shape Node, traverse through all Child Nodes inside particular node.
7. Access and display information like Child Node position, level and Text.

// Instantiate Presentation Class
Presentation pres = new Presentation("AccessChildNodes.pptx");
try {
    // Get first slide
    ISlide slide = pres.getSlides().get_Item(0);
    
    // Traverse through every shape inside first slide
    for (IShape shape : slide.getShapes()) 
    {
        // Check if shape is of SmartArt type
        if (shape instanceof ISmartArt) 
        {
            // Typecast shape to SmartArt
            ISmartArt smart = (ISmartArt) shape;
    
            // Traverse through all nodes inside SmartArt
            for (int i = 0; i < smart.getAllNodes().size(); i++) 
            {
                // Accessing SmartArt node at index i
                SmartArtNode node0 = (SmartArtNode) smart.getAllNodes().get_Item(i);
                
                // Traversing through the child nodes in SmartArt node at index i
                for (int j = 0; j < node0.getChildNodes().size(); j++) 
                {
                    // Accessing the child node in SmartArt node
                    SmartArtNode node = (SmartArtNode) node0.getChildNodes().get_Item(j);
    
                    // Printing the SmartArt child node parameters
                    System.out.print("j = " + j + ", Text = " + node.getTextFrame().getText() + ",  Level = " + node.getLevel() + ", Position = " + node.getPosition());
                }
            }
        }
    }
} finally {
    if (pres != null) pres.dispose();
}

Access SmartArt Child Node at Specific Position

In this example, we will learn to access the child nodes at some particular position belonging to respective nodes of SmartArt shape.

1. Create an instance of Presentation class.
2. Obtain the reference of first slide by using its Index.
3. Add a StackedList type SmartArt shape.
4. Access the added SmartArt shape.
5. Access the node at index 0 for accessed SmartArt shape.
6. Now, access the Child Node at position 1 for accessed SmartArt node using get_Item() method.
7. Access and display information like Child Node position, level and Text.

// Instantiate the presentation
Presentation pres = new Presentation();
try {
    // Accessing the first slide
    ISlide slide = pres.getSlides().get_Item(0);
    
    // Adding the SmartArt shape in first slide
    ISmartArt smart = slide.getShapes().addSmartArt(0, 0, 400, 400, SmartArtLayoutType.StackedList);
    
    // Accessing the SmartArt node at index 0
    ISmartArtNode node = smart.getAllNodes().get_Item(0);
    
    // Accessing the child node at position 1 in parent node
    int position = 1;
    SmartArtNode chNode = (SmartArtNode) ((SmartArtNodeCollection) node.getChildNodes()).get_Item(position);
    
    // Printing the SmartArt child node parameters
    System.out.print("Text = " + chNode.getTextFrame().getText() + ",  Level = " + chNode.getLevel() + ", Position = " + chNode.getPosition());
} finally {
    if (pres != null) pres.dispose();
}

Remove SmartArt Node in PowerPoint Presentation using Java

In this example, we will learn to remove the nodes inside SmartArt shape.

1. Create an instance of Presentation class and load the presentation with SmartArt Shape.
2. Obtain the reference of first slide by using its Index.
3. Traverse through every shape inside first slide.
4. Check if shape is of SmartArt type and Typecast selected shape to SmartArt if it is SmartArt.
5. Check if the SmartArt has more than 0 nodes.
6. Select the SmartArt node to be deleted.
7. Now, remove the selected node using RemoveNode method.
8. Save the Presentation.

// Load the desired the presentation
Presentation pres = new Presentation("AddSmartArtNode.pptx");
try {
    // Traverse through every shape inside first slide
    for (IShape shape : pres.getSlides().get_Item(0).getShapes()) 
    {
        // Check if shape is of SmartArt type
        if (shape instanceof ISmartArt) 
        {
            // Typecast shape to SmartArt
            ISmartArt smart = (ISmartArt) shape;
    
            if (smart.getAllNodes().size() > 0) 
            {
                // Accessing SmartArt node at index 0
                ISmartArtNode node = smart.getAllNodes().get_Item(0);
    
                // Removing the selected node
                smart.getAllNodes().removeNode(node);
            }
        }
    }
    
    // Save Presentation
    pres.save("RemoveSmartArtNode.pptx", SaveFormat.Pptx);
} finally {
    if (pres != null) pres.dispose();
}

Remove SmartArt Node at Specific Position

In this example, we will learn to remove the nodes inside SmartArt shape at particular position.

1. Create an instance of Presentation class and load the presentation with SmartArt Shape.
2. Obtain the reference of first slide by using its Index.
3. Traverse through every shape inside first slide.
4. Check if shape is of SmartArt type and Typecast selected shape to SmartArt if it is SmartArt.
5. Select the SmartArt shape node at index 0.
6. Now, check if the selected SmartArt node has more than 2 child nodes.
7. Now, remove the node at Position 1 using RemoveNode method.
8. Save the Presentation.

// Load the desired the presentation
Presentation pres = new Presentation("AddSmartArtNode.pptx");
try {
    // Traverse through every shape inside first slide
    for (IShape shape : pres.getSlides().get_Item(0).getShapes()) 
    {
        // Check if shape is of SmartArt type
        if (shape instanceof SmartArt) 
        {
            // Typecast shape to SmartArt
            SmartArt smart = (SmartArt) shape;
    
            if (smart.getAllNodes().size() > 0) 
            {
                // Accessing SmartArt node at index 0
                ISmartArtNode node = smart.getAllNodes().get_Item(0);
    
                if (node.getChildNodes().size() >= 2) 
                {
                    // Removing the child node at position 1
                    (node.getChildNodes()).removeNode(1);
                }
            }
        }
    }
    
    // Save Presentation
    pres.save("RemoveSmartArtNodeByPosition.pptx", SaveFormat.Pptx);
} finally {
    if (pres != null) pres.dispose();
}

Set Custom Position for Child Node in SmartArt

Now Aspose.Slides for Java support for setting SmartArtShape X and Y properties. The code snippet below shows how to set custom SmartArtShape position, size and rotation also please note that adding new nodes causes a recalculation of the positions and sizes of all nodes. Also with custom position settings, user may set the nodes as per requirements.

// Instantiate Presentation Class
Presentation pres = new Presentation("SimpleSmartArt.pptx");
try{
    ISmartArt smart = pres.getSlides().get_Item(0).getShapes().addSmartArt(20, 20, 600, 500, SmartArtLayoutType.OrganizationChart);

    // Move SmartArt shape to new position
    ISmartArtNode node = smart.getAllNodes().get_Item(1);
    ISmartArtShape shape = node.getShapes().get_Item(1);
    shape.setX(shape.getX() + shape.getWidth() * 2);
    shape.setY(shape.getY() - shape.getHeight() * 2);

    // Change SmartArt shape's widths
    node = smart.getAllNodes().get_Item(2);
    shape = node.getShapes().get_Item(1);
    shape.setWidth(shape.getWidth() + shape.getWidth() * 2);

    // Change SmartArt shape's height
    node = smart.getAllNodes().get_Item(3);
    shape = node.getShapes().get_Item(1);
    shape.setHeight(shape.getHeight() + shape.getHeight() * 2);

    // Change SmartArt shape's rotation
    node = smart.getAllNodes().get_Item(4);
    shape = node.getShapes().get_Item(1);
    shape.setRotation(90);

    pres.save("SmartArt.pptx", SaveFormat.Pptx);
}finally {
    pres.dispose();
}

Check Assistant Node

In this article we will further investigate features of SmartArt shapes added in presentation slides programmatically using Aspose.Slides for Java.

We will use the following source SmartArt shape for our investigation in different sections of this article.

Figure: Source SmartArt shape in slide

In the following sample code we will investigate how to identify Assistant Nodes in the SmartArt nodes collection and changing them.

1. Create an instance of Presentation class and load the presentation with SmartArt Shape.
2. Obtain the reference of second slide by using its Index.
3. Traverse through every shape inside first slide.
4. Check if shape is of SmartArt type and Typecast selected shape to SmartArt if it is SmartArt.
5. Traverse through all nodes inside SmartArt shape and check if they are Assistant Nodes.
6. Change the status of Assistant Node to normal node.
7. Save the Presentation.

// Creating a presentation instance
Presentation pres = new Presentation("AddNodes.pptx");
try {
    // Traverse through every shape inside first slide
    for (IShape shape : pres.getSlides().get_Item(0).getShapes()) 
    {
        // Check if shape is of SmartArt type
        if (shape instanceof ISmartArt) 
        {
            // Typecast shape to SmartArt
            ISmartArt smart = (SmartArt) shape;
    
            // Traversing through all nodes of SmartArt shape
            for (int i = 0; i < smart.getAllNodes().size(); i++) 
            {
                ISmartArtNode node = smart.getAllNodes().get_Item(i);
                // Check if node is Assistant node
                if (node.isAssistant()) 
                {
                    // Setting Assistant node to false and making it normal node
                    node.isAssistant();
                }
            }
        }
    }
    
    // Save Presentation
    pres.save("ChangeAssitantNode.pptx", SaveFormat.Pptx);
} finally {
    if (pres != null) pres.dispose();
}

Figure: Assistant Nodes Changed in SmartArt shape inside slide

Set Node’s Fill Format

Aspose.Slides for Java makes it possible to add custom SmartArt shapes and set their fill format. This article explains how to create and access SmartArt shapes and set their fill format using Aspose.Slides for Java.

Please follow the steps below:

1. Create an instance of the Presentation class.
2. Obtain the reference of a slide using its index.
3. Add a SmartArt shape by setting its LayoutType.
4. Set the FillFormat for the SmartArt shape nodes.
5. Write the modified presentation as a PPTX file.

// Instantiate the presentation
Presentation pres = new Presentation();
try {
    // Accessing the slide
    ISlide slide = pres.getSlides().get_Item(0);
    
    // Adding SmartArt shape and nodes
    ISmartArt chevron = slide.getShapes().addSmartArt(10, 10, 800, 60, SmartArtLayoutType.ClosedChevronProcess);
    ISmartArtNode node = chevron.getAllNodes().addNode();
    node.getTextFrame().setText("Some text");
    
    // Setting node fill color
    for (IShape item : node.getShapes()) 
    {
        item.getFillFormat().setFillType(FillType.Solid);
        item.getFillFormat().getSolidFillColor().setColor(Color.RED);
    }
    
    // Save the presentation
    pres.save("TestSmart.pptx", SaveFormat.Pptx);
} finally {
    if (pres != null) pres.dispose();
}

Generate Thumbnail of SmartArt Child Node

Developers can generate a thumbnail of Child node of a SmartArt by following the steps below:

1. Create an instance of Presentation class.
2. Add SmartArt.
3. Obtain the reference of a node by using its Index
4. Get the thumbnail image.
5. Save the thumbnail image in any desired image format.

// Instantiate Presentation class that represents the PPTX file 
Presentation pres = new Presentation();
try {
    // Add SmartArt 
    ISmartArt smart = pres.getSlides().get_Item(0).getShapes().addSmartArt(10, 10, 400, 300, SmartArtLayoutType.BasicCycle);

    // Obtain the reference of a node by using its Index  
    ISmartArtNode node = smart.getNodes().get_Item(1);

    // Get thumbnail
    IImage slideImage = node.getShapes().get_Item(0).getImage();

    // Save thumbnail
    try {
          slideImage.save("SmartArt_ChildNote_Thumbnail.png", ImageFormat.Png);
    } finally {
         if (slideImage != null) slideImage.dispose();
    }
} finally {
    if (pres != null) pres.dispose();
}