gradio-pianoroll 0.0.1

A PianoRoll Component for Gradio.

---

tags: [gradio-custom-component, ] title: gradio_pianoroll short_description: A PianoRoll Component for colorFrom: blue colorTo: yellow sdk: gradio pinned: false app_file: space.py

gradio_pianoroll

A PianoRoll Component for Gradio.

Installation

pip install gradio_pianoroll

Usage

import gradio as gr
from gradio_pianoroll import PianoRoll

def convert(piano_roll):
    print("=== Convert function called ===")
    print("Received piano_roll:")
    print(piano_roll)
    print("Type:", type(piano_roll))
    return piano_roll
with gr.Blocks() as demo:
    gr.Markdown("# Gradio PianoRoll: Gradio에서 피아노롤 컴포넌트 사용")

    with gr.Row():
        with gr.Column():
            # 초기값을 명시적으로 설정
            initial_value = {
                "notes": [
                    {
                        "id": "note-1",
                        "start": 80,
                        "duration": 80,
                        "pitch": 60,
                        "velocity": 100,
                        "lyric": "테스트"
                    }
                ],
                "tempo": 140,
                "timeSignature": {"numerator": 4, "denominator": 4},
                "editMode": "select",
                "snapSetting": "1/4"
            }
            piano_roll = PianoRoll(height=600, width=1000, value=initial_value)

    with gr.Row():
        with gr.Column():
            output_json = gr.JSON()

    with gr.Row():
        with gr.Column():
            btn = gr.Button("Convert & Debug")

    # 버튼 클릭 이벤트
    btn.click(
        fn=convert,
        inputs=piano_roll,
        outputs=output_json,
        show_progress=True
    )

if __name__ == "__main__":
    demo.launch()

PianoRoll

Initialization

name	type	default	description
value	dict | None	None	default MIDI notes data to provide in piano roll. If a function is provided, the function will be called each time the app loads to set the initial value of this component.
label	str | I18nData | None	None	the label for this component, displayed above the component if `show_label` is `True` and is also used as the header if there are a table of examples for this component. If None and used in a `gr.Interface`, the label will be the name of the parameter this component corresponds to.
every	"Timer | float | None"	None	Continously calls `value` to recalculate it if `value` is a function (has no effect otherwise). Can provide a Timer whose tick resets `value`, or a float that provides the regular interval for the reset Timer.
inputs	Component | Sequence[Component] | set[Component] | None	None	Components that are used as inputs to calculate `value` if `value` is a function (has no effect otherwise). `value` is recalculated any time the inputs change.
show_label	bool | None	None	if True, will display label.
scale	int | None	None	relative size compared to adjacent Components. For example if Components A and B are in a Row, and A has scale=2, and B has scale=1, A will be twice as wide as B. Should be an integer. scale applies in Rows, and to top-level Components in Blocks where fill_height=True.
min_width	int	160	minimum pixel width, will wrap if not sufficient screen space to satisfy this value. If a certain scale value results in this Component being narrower than min_width, the min_width parameter will be respected first.
interactive	bool | None	None	if True, will be rendered as an editable piano roll; if False, editing will be disabled. If not provided, this is inferred based on whether the component is used as an input or output.
visible	bool	True	If False, component will be hidden.
elem_id	str | None	None	An optional string that is assigned as the id of this component in the HTML DOM. Can be used for targeting CSS styles.
elem_classes	list[str] | str | None	None	An optional list of strings that are assigned as the classes of this component in the HTML DOM. Can be used for targeting CSS styles.
render	bool	True	If False, component will not render be rendered in the Blocks context. Should be used if the intention is to assign event listeners now but render the component later.
key	int | str | tuple[int | str, ...] | None	None	in a gr.render, Components with the same key across re-renders are treated as the same component, not a new component. Properties set in 'preserved_by_key' are not reset across a re-render.
preserved_by_key	list[str] | str | None	"value"	A list of parameters from this component's constructor. Inside a gr.render() function, if a component is re-rendered with the same key, these (and only these) parameters will be preserved in the UI (if they have been changed by the user or an event listener) instead of re-rendered based on the values provided during constructor.
width	int | None	1000	width of the piano roll component in pixels.
height	int | None	600	height of the piano roll component in pixels.

Events

name	description
change	Triggered when the value of the PianoRoll changes either because of user input (e.g. a user types in a textbox) OR because of a function update (e.g. an image receives a value from the output of an event trigger). See .input() for a listener that is only triggered by user input.
input	This listener is triggered when the user changes the value of the PianoRoll.