mirror of
https://github.com/invoke-ai/InvokeAI
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58 lines
2.0 KiB
Python
58 lines
2.0 KiB
Python
from typing import Literal
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from pydantic.fields import Field
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from .baseinvocation import BaseInvocation, BaseInvocationOutput, InvocationContext
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from dynamicprompts.generators import RandomPromptGenerator, CombinatorialPromptGenerator
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class PromptOutput(BaseInvocationOutput):
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"""Base class for invocations that output a prompt"""
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#fmt: off
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type: Literal["prompt"] = "prompt"
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prompt: str = Field(default=None, description="The output prompt")
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#fmt: on
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class Config:
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schema_extra = {
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'required': [
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'type',
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'prompt',
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]
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}
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class PromptCollectionOutput(BaseInvocationOutput):
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"""Base class for invocations that output a collection of prompts"""
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# fmt: off
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type: Literal["prompt_collection_output"] = "prompt_collection_output"
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prompt_collection: list[str] = Field(description="The output prompt collection")
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count: int = Field(description="The size of the prompt collection")
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# fmt: on
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class Config:
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schema_extra = {"required": ["type", "prompt_collection", "count"]}
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class DynamicPromptInvocation(BaseInvocation):
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"""Parses a prompt using adieyal/dynamicprompts' random or combinatorial generator"""
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type: Literal["dynamic_prompt"] = "dynamic_prompt"
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prompt: str = Field(description="The prompt to parse with dynamicprompts")
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max_prompts: int = Field(default=1, description="The number of prompts to generate")
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combinatorial: bool = Field(
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default=False, description="Whether to use the combinatorial generator"
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)
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def invoke(self, context: InvocationContext) -> PromptCollectionOutput:
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if self.combinatorial:
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generator = CombinatorialPromptGenerator()
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prompts = generator.generate(self.prompt, max_prompts=self.max_prompts)
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else:
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generator = RandomPromptGenerator()
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prompts = generator.generate(self.prompt, num_images=self.max_prompts)
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return PromptCollectionOutput(prompt_collection=prompts, count=len(prompts))
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