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# -*- coding: utf-8 -*-
#Copyright (c) 2011, 2012 Walter Bender
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# You should have received a copy of the GNU General Public License
# along with this library; if not, write to the Free Software
# Foundation, 51 Franklin Street, Suite 500 Boston, MA 02110-1335 USA
import pygtk
pygtk.require('2.0')
import gtk
from glib import GError
import os.path
import time
import cairo
import pango
import pangocairo
from gettext import gettext as _
from utils import get_pixbuf_from_journal
HEAD = 32
BODY = 12
PAGE_WIDTH = 504
PAGE_HEIGHT = 648
LEFT_MARGIN = 10
TOP_MARGIN = 20
def save_pdf(activity, nicks, description=None):
''' Output a PDF document from the title, pictures, and descriptions '''
if len(activity.slides) == 0:
return None
tmp_file = os.path.join(activity.datapath, 'output.pdf')
pdf_surface = cairo.PDFSurface(tmp_file, 504, 648)
fd = pango.FontDescription('Sans')
cr = cairo.Context(pdf_surface)
cr.set_source_rgb(0, 0, 0)
y = TOP_MARGIN
for nick in nicks:
show_text(cr, fd, nick, HEAD, LEFT_MARGIN, y)
y += int(HEAD * 1.5)
show_text(cr, fd, time.strftime('%x', time.localtime()),
BODY, LEFT_MARGIN, y + 3 * HEAD)
if description is not None:
show_text(cr, fd, description, BODY, LEFT_MARGIN, y + 4 * HEAD)
cr.show_page()
for i, slide in enumerate(activity.slides):
if slide.title is not None:
show_text(cr, fd, slide.title, HEAD, LEFT_MARGIN,
TOP_MARGIN)
else:
show_text(cr, fd, _('untitled'), HEAD, LEFT_MARGIN, TOP_MARGIN)
w = 300
h = 225
if slide.pixbuf is not None:
cr.save()
cr = gtk.gdk.CairoContext(cr)
cr.set_source_pixbuf(slide.pixbuf, LEFT_MARGIN, TOP_MARGIN + 150)
cr.rectangle(LEFT_MARGIN, TOP_MARGIN + 150, w, h)
cr.fill()
cr.restore()
if slide.desc is not None:
show_text(cr, fd, slide.desc, BODY, LEFT_MARGIN, h + 175)
cr.show_page()
return tmp_file
def show_text(cr, fd, label, size, x, y):
cr = pangocairo.CairoContext(cr)
pl = cr.create_layout()
fd.set_size(int(size * pango.SCALE))
pl.set_font_description(fd)
if type(label) == str or type(label) == unicode:
pl.set_text(label.replace('\0', ' '))
else:
pl.set_text(str(label))
pl.set_width((PAGE_WIDTH - LEFT_MARGIN * 2) * pango.SCALE)
cr.save()
cr.translate(x, y)
cr.update_layout(pl)
cr.show_layout(pl)
cr.restore()
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