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https://github.com/Kunsi/pretalx-plugin-broadcast-tools
synced 2024-12-22 18:49:11 +00:00
add feature "export pdf page for each talk happening"
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236
pretalx_broadcast_tools/exporter.py
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236
pretalx_broadcast_tools/exporter.py
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from tempfile import NamedTemporaryFile
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from django.http import HttpResponse
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from django.utils.timezone import now
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from pretalx.schedule.exporters import ScheduleData
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from pretalx.submission.models import SubmissionStates
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from reportlab.graphics import renderPDF
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from reportlab.lib import colors
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from reportlab.lib.enums import TA_CENTER
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from reportlab.lib.pagesizes import A4
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from reportlab.lib.styles import ParagraphStyle, StyleSheet1
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from reportlab.lib.units import mm
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from reportlab.platypus import (
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Flowable,
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PageBreak,
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PageTemplate,
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Paragraph,
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SimpleDocTemplate,
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Spacer,
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Table,
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TableStyle,
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)
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A4_WIDTH, A4_HEIGHT = A4
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PAGE_PADDING = 10 * mm
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class PDFInfoPage(Flowable):
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def __init__(self, event, fahrplan_day, room_details, talk, style):
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super().__init__()
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self.event = event
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self.talk = talk
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self.day = fahrplan_day
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self.room = room_details
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self.style = style
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self.y_position = PAGE_PADDING
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def _add(self, item, gap=2):
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_, height = item.wrapOn(
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self.canv, A4_WIDTH - 2 * PAGE_PADDING, A4_HEIGHT - 2 * PAGE_PADDING
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)
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self.y_position += height + gap * mm
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item.drawOn(self.canv, PAGE_PADDING, -self.y_position)
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def _checkbox_text(self, text, **kwargs):
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item = Paragraph(text, **kwargs)
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_, height = item.wrapOn(
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self.canv, A4_WIDTH - 2 * PAGE_PADDING, A4_HEIGHT - 2 * PAGE_PADDING
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)
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self.y_position += height + 2 * mm
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item.drawOn(self.canv, PAGE_PADDING + 1.3 * height, -self.y_position)
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self.canv.rect(PAGE_PADDING, -self.y_position, height * 0.8, height * 0.8)
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def _space(self):
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self._add(Spacer(1, PAGE_PADDING / 2))
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def draw(self):
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# add Submission code, type, title and "do not record"
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# horizontally to the side of the page.
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self.canv.saveState()
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self.canv.rotate(90)
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self.canv.setFont("Helvetica", 12)
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self.canv.drawString(
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-(A4_HEIGHT - (PAGE_PADDING / 3)),
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-(PAGE_PADDING / 3),
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f"{self.talk.submission.code} | {self.talk.submission.submission_type.name} | {self.event.name} | {self.talk.local_start.isoformat()} | Day {self.day['index']} | {self.room['name']}",
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)
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self.canv.restoreState()
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if self.talk.submission.do_not_record:
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self._add(
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Paragraph("DO NOT RECORD. DO NOT STREAM", style=self.style["Warning"]),
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gap=0,
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)
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self._space()
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self._add(
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Paragraph(
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f"{self.event.name} | {self.room['name']} | {self.talk.local_start.strftime('%F %T')} {self.event.timezone}",
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style=self.style["Meta"],
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)
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)
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self._add(
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Paragraph(self.talk.submission.title, style=self.style["Title"]), gap=0
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)
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self._space()
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for spk in self.talk.submission.speakers.all():
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self._checkbox_text(
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spk.get_display_name(),
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style=self.style["Speaker"],
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)
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self._space()
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self._add(
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Table(
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[
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(
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"Duration",
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"Language",
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"Type",
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"Code",
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),
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(
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self.talk.export_duration,
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self.talk.submission.content_locale,
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self.talk.submission.submission_type.name,
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self.talk.submission.code,
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),
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],
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colWidths=30 * mm,
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style=TableStyle(
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[
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("ALIGN", (0, 0), (-1, -1), "CENTER"),
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("VALIGN", (0, 0), (-1, -1), "TOP"),
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("INNERGRID", (0, 0), (-1, -1), 0.25, colors.black),
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("BOX", (0, 0), (-1, -1), 0.25, colors.black),
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]
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),
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)
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)
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if self.talk.submission.abstract:
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self._space()
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self._add(
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Paragraph(
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self.talk.submission.abstract,
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style=self.style["Abstract"],
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)
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)
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if self.talk.submission.notes:
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self._space()
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for line in self.talk.submission.notes.splitlines():
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line = line.strip()
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if not line:
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continue
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self._add(
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Paragraph(
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line,
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style=self.style["Notes"],
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)
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)
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if self.talk.submission.internal_notes:
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self._space()
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for line in self.talk.submission.internal_notes.splitlines():
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line = line.strip()
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if not line:
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continue
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self._add(
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Paragraph(
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line,
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style=self.style["Notes"],
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)
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)
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class PDFExporter(ScheduleData):
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identifier = "broadcast_pdf"
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verbose_name = "Broadcast Tools PDF (with internal notes)"
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public = False
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show_qrcode = False
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icon = "fa-file-pdf"
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def _add_pages(self, doc):
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style = self._style()
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pages = []
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for fahrplan_day in self.data:
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for room_details in fahrplan_day["rooms"]:
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for talk in room_details["talks"]:
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pages.append(
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PDFInfoPage(self.event, fahrplan_day, room_details, talk, style)
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)
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pages.append(PageBreak())
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return pages
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def _style(self):
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stylesheet = StyleSheet1()
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stylesheet.add(
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ParagraphStyle(name="Normal", fontName="Helvetica", fontSize=12, leading=14)
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)
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stylesheet.add(
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ParagraphStyle(
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name="Title", fontName="Helvetica-Bold", fontSize=20, leading=24
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)
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)
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stylesheet.add(
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ParagraphStyle(
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name="Speaker", fontName="Helvetica-Oblique", fontSize=12, leading=14
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)
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)
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stylesheet.add(
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ParagraphStyle(name="Meta", fontName="Helvetica", fontSize=10, leading=12)
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)
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stylesheet.add(
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ParagraphStyle(
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name="Abstract", fontName="Helvetica", fontSize=14, leading=16
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)
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)
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stylesheet.add(
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ParagraphStyle(
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name="Notes", fontName="Helvetica-Oblique", fontSize=12, leading=14
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)
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)
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stylesheet.add(
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ParagraphStyle(
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name="Warning",
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fontName="Helvetica-Bold",
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fontSize=20,
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leading=24,
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alignment=TA_CENTER,
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textColor=colors.red,
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)
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)
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return stylesheet
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def render(self, *args, **kwargs):
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with NamedTemporaryFile(suffix=".pdf") as f:
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doc = SimpleDocTemplate(
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f.name,
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pagesize=A4,
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rightMargin=0,
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leftMargin=0,
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topMargin=0,
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bottomMargin=0,
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)
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doc.build(self._add_pages(doc))
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f.seek(0)
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timestamp = now().strftime("%Y-%m-%d-%H%M")
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return (
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f"{self.event.slug}_broadcast_tools_{timestamp}.pdf",
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"application/pdf",
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f.read(),
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)
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@ -4,6 +4,7 @@ from django.utils.translation import gettext_noop
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from django.utils.translation import ugettext_lazy as _
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from i18nfield.strings import LazyI18nString
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from pretalx.common.models.settings import hierarkey
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from pretalx.common.signals import register_data_exporters
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from pretalx.orga.signals import nav_event_settings
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hierarkey.add_default(
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@ -34,3 +35,9 @@ def navbar_info(sender, request, **kwargs):
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and url.url_name == "orga",
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}
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]
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@receiver(register_data_exporters, dispatch_uid="exporter_myexporter")
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def register_data_exporter(sender, **kwargs):
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from .exporter import PDFExporter
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return PDFExporter
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