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39b5db1 c96d602 39b5db1 c96d602 39b5db1 c96d602 39b5db1 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 | """Page structure. Mirrors the workflow: source → configure → generate →
inspect ground truth → export. Widgets only; behaviour is in `handlers`."""
from __future__ import annotations
import gradio as gr
from src import config
from src.packager import REASSEMBLY_SNIPPET
from . import content, handlers
from .theme import CSS, build_theme
def _section(label: str) -> None:
gr.HTML(f'<div class="dm-section">{label}</div>')
def build_ui() -> gr.Blocks:
with gr.Blocks(
theme=build_theme(),
title="Dataset-Maker",
css=CSS,
# Gradio copies every returned file/image into its cache and never
# frees it by default; sweep it on the same TTL as our temp files.
delete_cache=(config.TEMP_FILE_TTL_S, config.TEMP_FILE_TTL_S),
) as demo:
gr.HTML(content.HEADER_HTML)
with gr.Accordion("How each guarantee is enforced", open=False):
gr.HTML(content.GUARANTEES_HTML)
# Previews of uploaded pages live in session state; expire it (and the
# session's export) on the same TTL instead of keeping idle tabs forever.
state = gr.State(None, time_to_live=config.TEMP_FILE_TTL_S,
delete_callback=handlers.release_view)
with gr.Row(equal_height=False):
# ---------------- left: source + configuration ----------------
with gr.Column(scale=4, min_width=320):
_section("1 · Source")
pdf_in = gr.File(label="PDF", file_types=[".pdf"], type="filepath", height=120)
sample_btn = gr.Button("Load sample PDF", size="sm", variant="secondary")
_section("2 · Tear configuration")
n_pieces = gr.Slider(
config.MIN_PIECES, config.MAX_PIECES, config.DEFAULT_PIECES, step=1,
label="Fragments per page",
info="Voronoi seeds (Poisson-disk). Produced count is reported and can be lower.",
)
seed = gr.Number(
value=0, precision=0, label="Master seed",
info="Page seed = (seed × 1000003 + page_index) & 0x7FFFFFFF. Recorded in the manifest.",
)
with gr.Accordion("Tear geometry", open=True):
noise_strength = gr.Slider(
config.MIN_NOISE_STRENGTH, config.MAX_NOISE_STRENGTH,
config.DEFAULT_NOISE_STRENGTH, step=1,
label="Edge displacement (px) · noise_strength",
info="Domain-warp amplitude. 0 = straight Voronoi edges.",
)
noise_scale = gr.Slider(
config.MIN_NOISE_SCALE, config.MAX_NOISE_SCALE,
config.DEFAULT_NOISE_SCALE, step=1,
label="Edge wavelength (px) · noise_scale",
info="Base wavelength of the warp noise. Displacement far above "
"wavelength folds the warp → multi-component fragments (reported).",
)
with gr.Accordion("Rendering and output", open=False):
dpi = gr.Slider(
config.MIN_DPI, config.MAX_DPI, config.DEFAULT_DPI, step=1,
label="Render DPI",
)
dpi_md = gr.HTML(handlers.dpi_note(config.DEFAULT_DPI))
lossy = gr.Checkbox(
value=False, label="Lossy palette PNG (64 colours)",
info="Smaller ZIP. Offsets stay exact; pixel values become approximate.",
)
_section("3 · Generate")
with gr.Row():
run_btn = gr.Button("Generate dataset", variant="primary",
elem_id="dm-generate", scale=3)
clear_btn = gr.Button("Clear", variant="secondary", scale=1)
# ---------------- right: inspect + export ----------------
with gr.Column(scale=9, min_width=480):
_section("4 · Inspect ground truth · 5 · Export")
with gr.Row(equal_height=True):
summary = gr.HTML(content.EMPTY_SUMMARY_HTML, elem_id="dm-summary")
page_dd = gr.Dropdown(
choices=[], value=None, label="Page (Preview, Ground truth)",
interactive=False, scale=0, min_width=300,
)
with gr.Tabs():
with gr.Tab("Preview"):
with gr.Row():
src_img = gr.Image(label="Source page (A4 render)", type="numpy",
interactive=False, height=560)
part_img = gr.Image(label="Partition map · tear lines + piece index",
type="numpy", interactive=False, height=560)
gallery = gr.Gallery(
label=f"Fragments (preview resolution, first {handlers.MAX_THUMBNAILS})",
columns=6, height=300, object_fit="contain", elem_id="dm-gallery",
)
with gr.Tab("Ground truth"):
with gr.Row():
adj_img = gr.Image(label="Adjacency graph · node = fragment, edge = shared tear",
type="numpy", interactive=False, height=560, scale=5)
with gr.Column(scale=4):
page_meta = gr.HTML("")
adj_code = gr.Code(label="pages[i].adjacency", language="json",
interactive=False, lines=10)
gt_table = gr.Dataframe(
headers=handlers.GT_HEADERS,
datatype=["number"] * 8 + ["str"],
label="Per-fragment ground truth (full-resolution px; x, y = top-left offset on page)",
interactive=False, wrap=False, height=320, elem_id="dm-gt-table",
)
with gr.Tab("manifest.json"):
with gr.Row():
with gr.Column(scale=5):
manifest_code = gr.Code(
label="manifest.json of this run (arrays truncated for display)",
language="json", interactive=False, lines=28,
)
with gr.Column(scale=4):
gr.HTML(content.MANIFEST_FIELDS_HTML)
with gr.Tab("Export"):
with gr.Row():
with gr.Column(scale=5):
zip_out = gr.File(label="Download dataset (.zip)", interactive=False)
zip_table = gr.Dataframe(
headers=["path", "files", "bytes"],
datatype=["str", "number", "number"],
label="Archive contents of this run", interactive=False,
height=220,
)
gr.HTML(content.EXPORT_LAYOUT_HTML)
with gr.Column(scale=4):
gr.Code(
value=REASSEMBLY_SNIPPET, language="python",
label="Reassemble pages from the export (also in README.txt)",
interactive=False,
)
gr.HTML('<div class="dm-section">Known limitations</div>'
+ content.LIMITATIONS_HTML)
gr.HTML(content.SCOPE_HTML)
# ---------------- events ----------------
sample_btn.click(handlers.load_sample, None, pdf_in, show_progress="hidden")
dpi.change(handlers.dpi_note, dpi, dpi_md, show_progress="hidden")
run_btn.click(
handlers.generate,
inputs=[pdf_in, dpi, n_pieces, noise_strength, noise_scale, lossy, seed, state],
outputs=[state, src_img, part_img, gallery, zip_out],
concurrency_limit=config.WORKER_CONCURRENCY, # heavy job throttle
api_name="generate",
).then(
handlers.after_generate,
inputs=state,
outputs=[summary, page_dd, adj_img, gt_table, page_meta, adj_code,
manifest_code, zip_table],
show_progress="hidden",
)
page_dd.input(
handlers.show_page,
inputs=[state, page_dd],
outputs=[src_img, part_img, adj_img, gallery, gt_table, page_meta, adj_code],
show_progress="minimal",
)
clear_btn.click(
handlers.clear_session,
inputs=state,
outputs=[pdf_in, state, src_img, part_img, adj_img, gallery, gt_table,
page_meta, adj_code, manifest_code, zip_out, zip_table, summary, page_dd],
show_progress="hidden",
)
return demo
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