* src/docgen/PdfDoc.py: Added.

2007-09-13  Zsolt Foldvari  <zfoldvar@users.sourceforge.net>


svn: r8974

ChangeLog

@@ -1,3 +1,6 @@
+2007-09-13  Zsolt Foldvari  <zfoldvar@users.sourceforge.net>
+	* src/docgen/PdfDoc.py: Added.
+
 2007-09-13  Zsolt Foldvari  <zfoldvar@users.sourceforge.net>
 	* src/docgen/GtkPrint.py:
 	* src/docgen/CairoDoc.py:

src/docgen/PdfDoc.py

@@ -0,0 +1,158 @@
+#
+# Gramps - a GTK+/GNOME based genealogy program
+#
+# Copyright (C) 2000-2007  Donald N. Allingham
+#
+# 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 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+
+# $Id$
+
+"""PDF output generator based on Cairo and gtk.PrintOperation.
+"""
+
+__revision__ = "$Revision$"
+__author__   = "Zsolt Foldvari"
+
+#------------------------------------------------------------------------
+#
+# Python modules
+#
+#------------------------------------------------------------------------
+import os
+
+#------------------------------------------------------------------------
+#
+# Gramps modules
+#
+#------------------------------------------------------------------------
+from CairoDoc import CairoDoc
+from GtkPrint import paperstyle_to_pagesetup
+from PluginUtils import register_text_doc, register_draw_doc, register_book_doc
+import Errors
+import Utils
+import Mime
+
+#------------------------------------------------------------------------
+#
+# Set up logging
+#
+#------------------------------------------------------------------------
+import logging
+log = logging.getLogger(".PdfDoc")
+
+#-------------------------------------------------------------------------
+#
+# GTK modules
+#
+#-------------------------------------------------------------------------
+import gtk
+
+if gtk.pygtk_version < (2, 10, 0):
+    raise Errors.UnavailableError(_("PyGtk 2.10 or later is required"))
+
+#------------------------------------------------------------------------
+#
+# PdfDoc class
+#
+#------------------------------------------------------------------------
+class PdfDoc(CairoDoc):
+    """Print document via GtkPrint* interface.
+    
+    Requires Gtk+ 2.10.
+    
+    """
+    def run(self):
+        """Run the Gtk Print operation.
+        """
+        # get a page setup from the paper style we have
+        page_setup = paperstyle_to_pagesetup(self.paper)
+        
+        # set up a print operation
+        operation = gtk.PrintOperation()
+        operation.set_default_page_setup(page_setup)
+        operation.set_export_filename(self._filename)
+        operation.connect("begin_print", self.on_begin_print)
+        operation.connect("draw_page", self.on_draw_page)
+        operation.connect("paginate", self.on_paginate)
+        
+        # export to PDF file
+        operation.run(gtk.PRINT_OPERATION_ACTION_EXPORT, None)
+        
+    def on_begin_print(self, operation, context):
+        """Setup environment for printing.
+        """
+        # get page size
+        self.page_width = context.get_width()
+        self.page_height = context.get_height()
+        
+        # initialize pagination
+        self.setup_paginate()
+        
+    def on_paginate(self, operation, context):
+        """Paginate the whole document in chunks.
+        """
+        layout = context.create_pango_layout()
+        dpi_x = context.get_dpi_x()
+        dpi_y = context.get_dpi_y()
+        
+        finished = self.paginate(layout, dpi_x, dpi_y)
+        # update page number
+        operation.set_n_pages(len(self._pages))
+        
+        # load the result into an external viewer
+        if finished and self.print_req:
+            apptype = 'application/pdf'
+            app = Mime.get_application(apptype)
+            os.environ["FILE"] = self._filename
+            os.system('%s "$FILE" &' % app[0])
+            
+        return finished
+
+    def on_draw_page(self, operation, context, page_nr):
+        """Draw the requested page.
+        """
+        cr = context.get_cairo_context()
+        layout = context.create_pango_layout()
+        width = context.get_width()
+        height = context.get_height()
+        dpi_x = context.get_dpi_x()
+        dpi_y = context.get_dpi_y()
+
+        self.draw_page(page_nr, cr, layout, width, height, dpi_x, dpi_y)
+        
+#------------------------------------------------------------------------
+#
+# Register the document generator with the GRAMPS plugin system
+#
+#------------------------------------------------------------------------
+print_label = None
+try:
+    mprog = Mime.get_application("application/pdf")
+    mtype = Mime.get_description("application/pdf")
+    
+    if Utils.search_for(mprog[0]):
+        print_label=_("Open in %s") % mprog[1]
+    else:
+        print_label=None
+    register_text_doc(mtype, PdfDoc, 1, 1, 1, ".pdf", print_label)
+    register_draw_doc(mtype, PdfDoc, 1, 1,    ".pdf", print_label)
+    register_book_doc(mtype,classref=PdfDoc,
+                      table=1,paper=1,style=1,ext=".pdf")
+except:
+    register_text_doc(_('PDF document'), PdfDoc,1, 1, 1,".pdf", None)
+    register_draw_doc(_('PDF document'), PdfDoc,1, 1,   ".pdf", None)
+    register_book_doc(name=_("PDF document"),classref=PdfDoc,
+                      table=1,paper=1,style=1,ext=".pdf")