Picture

This article demonstrates how to insert and access pictures from in-memory images using Aspose.Slides for Python via Java. The examples below create an image in memory, place it on a slide, and then retrieve the picture frame.

Install the package as described in Installation. Each example imports asposeslides before starting the JVM, then imports the API after the JVM is running.

Add a Picture

This code generates a small bitmap, converts it to a stream, and inserts it as a picture frame on the first slide.

import jpype
import asposeslides

if not jpype.isJVMStarted():
    jpype.startJVM()

from java.awt import Color
from java.awt.image import BufferedImage
from java.io import ByteArrayInputStream, ByteArrayOutputStream
from javax.imageio import ImageIO
from asposeslides.api import Presentation, SaveFormat, ShapeType

presentation = Presentation()
try:
    slide = presentation.getSlides().get_Item(0)

    # Create a simple in-memory image.
    bitmap = BufferedImage(100, 100, BufferedImage.TYPE_INT_ARGB)
    graphics = bitmap.createGraphics()
    try:
        color = Color(144, 238, 144)
        graphics.setPaint(color)
        graphics.fillRect(0, 0, 100, 100)
    finally:
        graphics.dispose()

    # Convert the bitmap to a byte array.
    bitmap_stream = ByteArrayOutputStream()
    ImageIO.write(bitmap, "png", bitmap_stream)
    png_bytes = bitmap_stream.toByteArray()

    # Add the image to the presentation.
    image_stream = ByteArrayInputStream(png_bytes)
    image = presentation.getImages().addImage(image_stream)

    # Insert a picture frame showing the image on the first slide.
    slide.getShapes().addPictureFrame(ShapeType.Rectangle, 50, 50, bitmap.getWidth(), bitmap.getHeight(), image)

    presentation.save("picture.pptx", SaveFormat.Pptx)
finally:
    presentation.dispose()

Access a Picture

This example ensures a slide contains a picture frame and then accesses the first one it finds.

import jpype
import asposeslides

if not jpype.isJVMStarted():
    jpype.startJVM()

from java.awt.image import BufferedImage
from java.io import ByteArrayInputStream, ByteArrayOutputStream
from javax.imageio import ImageIO
from asposeslides.api import PictureFrame, Presentation, ShapeType

presentation = Presentation()
try:
    slide = presentation.getSlides().get_Item(0)

    bitmap = BufferedImage(40, 40, BufferedImage.TYPE_INT_ARGB)
    bitmap_stream = ByteArrayOutputStream()
    ImageIO.write(bitmap, "png", bitmap_stream)
    png_bytes = bitmap_stream.toByteArray()

    image_stream = ByteArrayInputStream(png_bytes)
    image = presentation.getImages().addImage(image_stream)
    slide.getShapes().addPictureFrame(ShapeType.Rectangle, 0, 0, 40, 40, image)

    picture_frame = None
    for shape in slide.getShapes():
        if isinstance(shape, PictureFrame):
            picture_frame = shape
            break

    if picture_frame is None:
        print("The slide contains no picture frames.")
finally:
    presentation.dispose()
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