Update app.py
Browse files
app.py
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# Versión 1.
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import gradio as gr
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import pandas as pd
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import config
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@@ -6,130 +6,116 @@ from core import PDFEngine
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engine = PDFEngine()
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# --- FUNCIONES
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def update_file_list(files):
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return pd.DataFrame(), ""
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# files es una lista de objetos o rutas dependiendo de la config.
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# En Gradio 4, si file_count="multiple", suele ser lista de rutas.
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data = []
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for idx, f_path in enumerate(files):
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name = f_path.split("/")[-1] # Obtener nombre simple
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data.append([idx, name])
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default_order = ",".join([str(i) for i in range(len(files))])
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return pd.DataFrame(data, columns=["ID", "
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def process_merge_ordered(files, order_str):
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if not files:
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return None
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try:
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# Convertir string "0, 2, 1" a lista de enteros [0, 2, 1]
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indices = [int(x.strip()) for x in order_str.split(",") if x.strip().isdigit()]
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return engine.merge_pdfs(files, indices)
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except Exception as e:
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raise gr.Error(f"Error
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# --- FUNCIONES
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def load_pdf_info(file):
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if not file:
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return None, None, gr.update(visible=False)
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info = engine.get_pdf_info(file)
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return msg, info['pages'], gr.update(visible=True)
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def update_preview(file, range_str, total_pages):
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if not file or not range_str:
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return None
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#
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indices = engine.parse_range_string(range_str, total_pages)
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if not indices:
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return None
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last_idx = indices[-1] + 1
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img1 = engine.generate_preview(file, first_idx)
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if img1: images.append((img1, f"Página {first_idx}"))
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if
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def process_split_range(file, range_str):
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# --- UI PRINCIPAL ---
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with gr.Blocks(title=config.APP_TITLE, theme=gr.themes.Soft()) as demo:
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gr.Markdown(f"# {config.APP_TITLE}")
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with gr.Tabs():
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# TAB 1: UNIR
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with gr.TabItem("Unir PDF"):
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gr.Markdown(
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with gr.Row():
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with gr.Column(scale=1):
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merge_files = gr.File(file_count="multiple", label="Archivos", file_types=[".pdf"])
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with gr.Column(scale=2):
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file_table = gr.Dataframe(headers=["ID", "
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order_input = gr.Textbox(label="Orden
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merge_btn = gr.Button("Unir
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merge_output = gr.File(label="Resultado")
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# Eventos
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merge_files.change(fn=update_file_list, inputs=merge_files, outputs=[file_table, order_input])
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merge_btn.click(fn=process_merge_ordered, inputs=[merge_files, order_input], outputs=merge_output)
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# TAB 2: DIVIDIR (
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with gr.TabItem("
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gr.Markdown(
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with gr.Row():
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with gr.Column():
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split_file = gr.File(label="PDF Origen", file_types=[".pdf"])
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range_input = gr.Textbox(label="Rango de páginas", placeholder="Ej: 1-3, 5")
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preview_btn = gr.Button("Previsualizar Selección")
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split_btn = gr.Button("Extraer Páginas", variant="primary")
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with gr.Column():
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preview_btn.click(
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fn=update_preview,
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inputs=[split_file, range_input, page_count_state],
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outputs=preview_gallery
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)
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split_btn.click(
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fn=process_split_range,
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inputs=[split_file, range_input],
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outputs=split_output
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)
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# TAB 3: PROTEGER (
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with gr.TabItem("Proteger PDF"):
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if __name__ == "__main__":
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demo.launch()
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# Versión 1.2: Corrección de UI y Preview Avanzada
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import gradio as gr
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import pandas as pd
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import config
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engine = PDFEngine()
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# --- FUNCIONES UNIR ---
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def update_file_list(files):
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if not files: return pd.DataFrame(), ""
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data = [[i, f.split("/")[-1]] for i, f in enumerate(files)]
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default_order = ",".join([str(i) for i in range(len(files))])
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return pd.DataFrame(data, columns=["ID", "Archivo"]), default_order
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def process_merge_ordered(files, order_str):
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if not files: return None
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try:
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indices = [int(x.strip()) for x in order_str.split(",") if x.strip().isdigit()]
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return engine.merge_pdfs(files, indices)
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except Exception as e:
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raise gr.Error(f"Error: {str(e)}")
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# --- FUNCIONES DIVIDIR ---
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def load_pdf_info(file):
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if not file: return None, 0, gr.update(visible=False)
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info = engine.get_pdf_info(file)
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return f"Cargado: {info['name']} ({info['pages']} págs).", info['pages'], gr.update(visible=True)
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def update_preview(file, range_str, total_pages):
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if not file or not range_str: return None
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# NUEVO: Obtenemos los hitos clave (inicio/fin) de cada rango
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key_pages = engine.get_preview_indices_from_string(range_str, total_pages)
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if not key_pages: return None
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# Limitamos a 8 previews para no saturar
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key_pages = key_pages[:8]
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gallery_data = []
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for page_num in key_pages:
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img_path = engine.generate_preview(file, page_num)
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if img_path:
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gallery_data.append((img_path, f"Pág {page_num}"))
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return gallery_data
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def process_split_range(file, range_str):
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if not file: return None
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try:
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return engine.split_pdf_custom(file, range_str)
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except Exception as e:
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raise gr.Error(str(e))
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# --- FUNCIONES PROTEGER ---
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def interface_protect(file, password):
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if not file or not password: return None
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try:
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return engine.protect_pdf(file, password)
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except Exception as e:
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raise gr.Error(str(e))
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# --- UI PRINCIPAL ---
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with gr.Blocks(title=config.APP_TITLE, theme=gr.themes.Soft()) as demo:
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gr.Markdown(f"# {config.APP_TITLE}")
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with gr.Tabs():
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# TAB 1: UNIR
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with gr.TabItem("Unir PDF"):
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gr.Markdown(config.TXT_MERGE)
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with gr.Row():
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with gr.Column(scale=1):
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merge_files = gr.File(file_count="multiple", label="Archivos", file_types=[".pdf"])
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with gr.Column(scale=2):
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file_table = gr.Dataframe(headers=["ID", "Archivo"], interactive=False)
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order_input = gr.Textbox(label="Orden (IDs separados por coma)", placeholder="Ej: 0, 2, 1")
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merge_btn = gr.Button("Unir PDF", variant="primary")
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merge_output = gr.File(label="Resultado")
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merge_files.change(fn=update_file_list, inputs=merge_files, outputs=[file_table, order_input])
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merge_btn.click(fn=process_merge_ordered, inputs=[merge_files, order_input], outputs=merge_output)
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# TAB 2: DIVIDIR (Mejorado)
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with gr.TabItem("Dividir PDF"):
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gr.Markdown(config.TXT_SPLIT)
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with gr.Row():
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with gr.Column():
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split_file = gr.File(label="PDF Origen", file_types=[".pdf"])
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info_txt = gr.Markdown("")
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page_count = gr.State(0)
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range_in = gr.Textbox(label="Rangos", placeholder="Ej: 1-3, 5, 8-10")
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with gr.Row():
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prev_btn = gr.Button("Ver Páginas Clave")
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split_btn = gr.Button("Extraer", variant="primary")
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with gr.Column():
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# Galería dinámica para mostrar múltiples páginas
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preview_gal = gr.Gallery(label="Hitos del Rango", columns=3, height=350, object_fit="contain")
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split_out = gr.File(label="PDF Resultante")
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split_file.change(fn=load_pdf_info, inputs=split_file, outputs=[info_txt, page_count, split_out])
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prev_btn.click(fn=update_preview, inputs=[split_file, range_in, page_count], outputs=preview_gal)
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split_btn.click(fn=process_split_range, inputs=[split_file, range_in], outputs=split_out)
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# TAB 3: PROTEGER (Restaurado)
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with gr.TabItem("Proteger PDF"):
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gr.Markdown(config.TXT_PROTECT)
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with gr.Row():
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with gr.Column():
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prot_file = gr.File(label="PDF a proteger", file_types=[".pdf"])
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pass_in = gr.Textbox(label="Contraseña", type="password")
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prot_btn = gr.Button("Encriptar", variant="primary")
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with gr.Column():
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prot_out = gr.File(label="PDF Encriptado")
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prot_btn.click(fn=interface_protect, inputs=[prot_file, pass_in], outputs=prot_out)
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if __name__ == "__main__":
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demo.launch()
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