Geography : omit to add the new file for printing : cairoprint.
svn: r22653
This commit is contained in:
Serge Noiraud
parent
b2c233dc94
commit
700cddf453
172
gramps/plugins/lib/maps/cairoprint.py
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172
gramps/plugins/lib/maps/cairoprint.py
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# Gramps - a GTK+/GNOME based genealogy program
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#
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# Copyright (C) 2001-2007 Donald N. Allingham, Martin Hawlisch
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# Copyright (C) 2009 Douglas S. Blank
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# Copyright (C) 2009 Serge Noiraud
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# $Id$
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#-------------------------------------------------------------------------
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#
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# Python modules
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#
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#-------------------------------------------------------------------------
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from gi.repository import Gdk
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from gi.repository import Gtk
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import cairo
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from gramps.gen.const import GRAMPS_LOCALE as glocale
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_ = glocale.translation.gettext
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#-------------------------------------------------------------------------
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#
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# GRAMPS modules
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#
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#-------------------------------------------------------------------------
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# the print settings to remember between print sessions
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PRINT_SETTINGS = None
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#------------------------------------------------------------------------
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#
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# CairoPrintSave class
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#
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#------------------------------------------------------------------------
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class CairoPrintSave():
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"""Act as an abstract document that can render onto a cairo context.
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It can render the model onto cairo context pages, according to the received
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page style.
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"""
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def __init__(self, widthpx, heightpx, drawfunc, parent):
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"""
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This class provides the things needed so as to dump a cairo drawing on
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a context to output
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"""
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self.widthpx = widthpx
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self.heightpx = heightpx
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self.drawfunc = drawfunc
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self.parent = parent
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def run(self):
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"""Create the physical output from the meta document.
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"""
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global PRINT_SETTINGS
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# set up a print operation
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operation = Gtk.PrintOperation()
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operation.connect("draw_page", self.on_draw_page)
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operation.connect("preview", self.on_preview)
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operation.connect("paginate", self.on_paginate)
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operation.set_n_pages(1)
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#paper_size = Gtk.PaperSize.new(name="iso_a4")
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## WHY no Gtk.Unit.PIXEL ?? Is there a better way to convert
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## Pixels to MM ??
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paper_size = Gtk.PaperSize.new_custom("custom",
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"Custom Size",
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round(self.widthpx * 0.2646),
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round(self.heightpx * 0.2646),
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Gtk.Unit.MM)
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page_setup = Gtk.PageSetup()
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page_setup.set_paper_size(paper_size)
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#page_setup.set_orientation(Gtk.PageOrientation.PORTRAIT)
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operation.set_default_page_setup(page_setup)
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#operation.set_use_full_page(True)
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if PRINT_SETTINGS is not None:
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operation.set_print_settings(PRINT_SETTINGS)
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# run print dialog
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while True:
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self.preview = None
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res = operation.run(Gtk.PrintOperationAction.PRINT_DIALOG, None)
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if self.preview is None: # cancel or print
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break
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# set up printing again; can't reuse PrintOperation?
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operation = Gtk.PrintOperation()
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operation.set_default_page_setup(page_setup)
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operation.connect("draw_page", self.on_draw_page)
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operation.connect("preview", self.on_preview)
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operation.connect("paginate", self.on_paginate)
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# set print settings if it was stored previously
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if PRINT_SETTINGS is not None:
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operation.set_print_settings(PRINT_SETTINGS)
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# store print settings if printing was successful
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if res == Gtk.PrintOperationResult.APPLY:
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PRINT_SETTINGS = operation.get_print_settings()
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def on_draw_page(self, operation, context, page_nr):
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"""Draw a page on a Cairo context.
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"""
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cr = context.get_cairo_context()
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self.drawfunc(self.parent, cr)
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def on_paginate(self, operation, context):
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"""Paginate the whole document in chunks.
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We don't need this as there is only one page, however,
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we provide a dummy holder here, because on_preview crashes if no
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default application is set with gir 3.3.2 (typically evince not installed)!
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It will provide the start of the preview dialog, which cannot be
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started in on_preview
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"""
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finished = True
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# update page number
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operation.set_n_pages(1)
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# start preview if needed
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if self.preview:
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self.preview.run()
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return finished
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def on_preview(self, operation, preview, context, parent):
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"""Implement custom print preview functionality.
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We provide a dummy holder here, because on_preview crashes if no
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default application is set with gir 3.3.2 (typically evince not installed)!
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"""
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dlg = Gtk.MessageDialog(parent,
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flags=Gtk.DialogFlags.MODAL,
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type=Gtk.MessageType.WARNING,
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buttons=Gtk.ButtonsType.CLOSE,
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message_format=_('No preview available'))
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self.preview = dlg
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self.previewopr = operation
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#dlg.format_secondary_markup(msg2)
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dlg.set_title("Map Preview - Gramps")
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dlg.connect('response', self.previewdestroy)
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# give a dummy cairo context to Gtk.PrintContext,
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try:
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width = int(round(context.get_width()))
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except ValueError:
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width = 0
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try:
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height = int(round(context.get_height()))
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except ValueError:
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height = 0
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surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, width, height)
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cr = cairo.Context(surface)
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context.set_cairo_context(cr, 72.0, 72.0)
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return True
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def previewdestroy(self, dlg, res):
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self.preview.destroy()
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self.previewopr.end_preview()
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