ayon-core/openpype/hosts/photoshop/api

Photoshop Integration

Setup

The Photoshop integration requires two components to work; extension and server.

Extension

To install the extension download Extension Manager Command Line tool (ExManCmd).

ExManCmd /install {path to avalon-core}\avalon\photoshop\extension.zxp

Server

The easiest way to get the server and Photoshop launch is with:

python -c ^"import avalon.photoshop;avalon.photoshop.launch(""C:\Program Files\Adobe\Adobe Photoshop 2020\Photoshop.exe"")^"

avalon.photoshop.launch launches the application and server, and also closes the server when Photoshop exists.

Usage

The Photoshop extension can be found under Window > Extensions > Avalon. Once launched you should be presented with a panel like this:

Developing

Extension

When developing the extension you can load it unsigned.

When signing the extension you can use this guide.

ZXPSignCmd -selfSignedCert NA NA Avalon Avalon-Photoshop avalon extension.p12
ZXPSignCmd -sign {path to avalon-core}\avalon\photoshop\extension {path to avalon-core}\avalon\photoshop\extension.zxp extension.p12 avalon

Plugin Examples

These plugins were made with the polly config. To fully integrate and load, you will have to use this config and add image to the integration plugin.

Creator Plugin

from avalon import photoshop


class CreateImage(photoshop.Creator):
    """Image folder for publish."""

    name = "imageDefault"
    label = "Image"
    family = "image"

    def __init__(self, *args, **kwargs):
        super(CreateImage, self).__init__(*args, **kwargs)

Collector Plugin

import pythoncom

import pyblish.api


class CollectInstances(pyblish.api.ContextPlugin):
    """Gather instances by LayerSet and file metadata

    This collector takes into account assets that are associated with
    an LayerSet and marked with a unique identifier;

    Identifier:
        id (str): "pyblish.avalon.instance"
    """

    label = "Instances"
    order = pyblish.api.CollectorOrder
    hosts = ["photoshop"]
    families_mapping = {
        "image": []
    }

    def process(self, context):
        # Necessary call when running in a different thread which pyblish-qml
        # can be.
        pythoncom.CoInitialize()

        photoshop_client = PhotoshopClientStub()
        layers = photoshop_client.get_layers()
        layers_meta = photoshop_client.get_layers_metadata()
        for layer in layers:
            layer_data = photoshop_client.read(layer, layers_meta)

            # Skip layers without metadata.
            if layer_data is None:
                continue

            # Skip containers.
            if "container" in layer_data["id"]:
                continue

            # child_layers = [*layer.Layers]
            # self.log.debug("child_layers {}".format(child_layers))
            # if not child_layers:
            #     self.log.info("%s skipped, it was empty." % layer.Name)
            #     continue

            instance = context.create_instance(layer.name)
            instance.append(layer)
            instance.data.update(layer_data)
            instance.data["families"] = self.families_mapping[
                layer_data["family"]
            ]
            instance.data["publish"] = layer.visible

            # Produce diagnostic message for any graphical
            # user interface interested in visualising it.
            self.log.info("Found: \"%s\" " % instance.data["name"])

Extractor Plugin

import os

from openpype.pipeline import publish
from openpype.hosts.photoshop import api as photoshop


class ExtractImage(publish.Extractor):
    """Produce a flattened image file from instance

    This plug-in takes into account only the layers in the group.
    """

    label = "Extract Image"
    hosts = ["photoshop"]
    families = ["image"]
    formats = ["png", "jpg"]

    def process(self, instance):

        staging_dir = self.staging_dir(instance)
        self.log.info("Outputting image to {}".format(staging_dir))

        # Perform extraction
        stub = photoshop.stub()
        files = {}
        with photoshop.maintained_selection():
            self.log.info("Extracting %s" % str(list(instance)))
            with photoshop.maintained_visibility():
                # Hide all other layers.
                extract_ids = set([ll.id for ll in stub.
                                   get_layers_in_layers([instance[0]])])

                for layer in stub.get_layers():
                    # limit unnecessary calls to client
                    if layer.visible and layer.id not in extract_ids:
                        stub.set_visible(layer.id, False)

                save_options = []
                if "png" in self.formats:
                    save_options.append('png')
                if "jpg" in self.formats:
                    save_options.append('jpg')

                file_basename = os.path.splitext(
                    stub.get_active_document_name()
                )[0]
                for extension in save_options:
                    _filename = "{}.{}".format(file_basename, extension)
                    files[extension] = _filename

                    full_filename = os.path.join(staging_dir, _filename)
                    stub.saveAs(full_filename, extension, True)

        representations = []
        for extension, filename in files.items():
            representations.append({
                "name": extension,
                "ext": extension,
                "files": filename,
                "stagingDir": staging_dir
            })
        instance.data["representations"] = representations
        instance.data["stagingDir"] = staging_dir

        self.log.info(f"Extracted {instance} to {staging_dir}")

Loader Plugin

from avalon import api, photoshop
from openpype.pipeline import load, get_representation_path

stub = photoshop.stub()


class ImageLoader(load.LoaderPlugin):
    """Load images

    Stores the imported asset in a container named after the asset.
    """

    families = ["image"]
    representations = ["*"]

    def load(self, context, name=None, namespace=None, data=None):
        path = self.filepath_from_context(context)
        with photoshop.maintained_selection():
            layer = stub.import_smart_object(path)

        self[:] = [layer]

        return photoshop.containerise(
            name,
            namespace,
            layer,
            context,
            self.__class__.__name__
        )

    def update(self, container, representation):
        layer = container.pop("layer")

        with photoshop.maintained_selection():
            stub.replace_smart_object(
                layer, get_representation_path(representation)
            )

        stub.imprint(
            layer, {"representation": str(representation["_id"])}
        )

    def remove(self, container):
        container["layer"].Delete()

    def switch(self, container, representation):
        self.update(container, representation)

For easier debugging of Javascript: https://community.adobe.com/t5/download-install/adobe-extension-debuger-problem/td-p/10911704?page=1 Add --enable-blink-features=ShadowDOMV0,CustomElementsV0 when starting Chrome then localhost:8078 (port set in photoshop\extension\.debug)

Or use Visual Studio Code https://medium.com/adobetech/extendscript-debugger-for-visual-studio-code-public-release-a2ff6161fa01

Or install CEF client from https://github.com/Adobe-CEP/CEP-Resources/tree/master/CEP_9.x

Resources

• https://github.com/lohriialo/photoshop-scripting-python
• https://www.adobe.com/devnet/photoshop/scripting.html
• https://github.com/Adobe-CEP/Getting-Started-guides
• https://github.com/Adobe-CEP/CEP-Resources