Plugins Restructure: Move docgen plugins into plugins/docgen.

svn: r11652
2009-01-18 04:59:14 +00:00
parent 708b00951f
commit 3f95d8ddb7
16 changed files with 61 additions and 43 deletions
--- a/src/plugins/docgen/PdfDoc.py
+++ b/src/plugins/docgen/PdfDoc.py
@@ -0,0 +1,157 @@
+#
+# Gramps - a GTK+/GNOME based genealogy program
+#
+# Copyright (C) 2007 Zsolt Foldvari
+# Copyright (C) 2008 Brian G. Matherly
+#
+# 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.
+"""
+
+#------------------------------------------------------------------------
+#
+# Python modules
+#
+#------------------------------------------------------------------------
+from gettext import gettext as _
+
+#------------------------------------------------------------------------
+#
+# Gramps modules
+#
+#------------------------------------------------------------------------
+from CairoDoc import CairoDoc
+from gen.plug import PluginManager
+import Utils
+import Mime
+
+#------------------------------------------------------------------------
+#
+# Set up logging
+#
+#------------------------------------------------------------------------
+import logging
+LOG = logging.getLogger(".PdfDoc")
+
+#-------------------------------------------------------------------------
+#
+# GTK modules
+#
+#-------------------------------------------------------------------------
+import pango
+import cairo
+import pangocairo
+
+#------------------------------------------------------------------------
+#
+# Constants
+#
+#------------------------------------------------------------------------
+
+# resolution
+DPI = 72.0
+
+#------------------------------------------------------------------------
+#
+# PdfDoc class
+#
+#------------------------------------------------------------------------
+class PdfDoc(CairoDoc):
+    """Render the document into PDF file using Cairo.
+    """
+    def run(self):
+        """Create the PDF output.
+        """
+        # get paper dimensions
+        paper_width = self.paper.get_size().get_width() * DPI / 2.54
+        paper_height = self.paper.get_size().get_height() * DPI / 2.54
+        page_width = round(self.paper.get_usable_width() * DPI / 2.54)
+        page_height = round(self.paper.get_usable_height() * DPI / 2.54)
+        left_margin = self.paper.get_left_margin() * DPI / 2.54
+        top_margin = self.paper.get_top_margin() * DPI / 2.54
+
+        # create cairo context and pango layout
+        surface = cairo.PDFSurface(self._filename, paper_width, paper_height)
+        surface.set_fallback_resolution(300, 300)
+        cr = pangocairo.CairoContext(cairo.Context(surface))
+
+        fontmap = pangocairo.cairo_font_map_get_default()
+        saved_resolution = fontmap.get_resolution()
+        fontmap.set_resolution(DPI)
+        
+        pango_context = fontmap.create_context()
+        options = cairo.FontOptions()
+        options.set_hint_metrics(cairo.HINT_METRICS_OFF)
+        pangocairo.context_set_font_options(pango_context, options)
+        layout = pango.Layout(pango_context)
+        cr.update_context(pango_context)
+        
+        # paginate the document
+        finished = self.paginate(layout, page_width, page_height, DPI, DPI)
+        while not finished:
+            finished = self.paginate(layout, page_width, page_height, DPI, DPI)
+
+        # render the pages
+        for page_nr in range(len(self._pages)):
+            cr.save()
+            cr.translate(left_margin, top_margin)
+            self.draw_page(page_nr, cr, layout,
+                           page_width, page_height,
+                           DPI, DPI)
+            cr.show_page()
+            cr.restore()
+            
+        # close the surface (file)
+        surface.finish()
+        
+        # Restore the resolution. On windows, Gramps UI fonts will be smaller
+        # if we don't restore the resolution.
+        fontmap.set_resolution(saved_resolution)
+
+        # load the result into an external viewer
+        if self.print_req:
+            app = Mime.get_application('application/pdf')
+            Utils.launch(app[0], self._filename) 
+            
+#------------------------------------------------------------------------
+#
+# Functions
+#
+#------------------------------------------------------------------------
+def register_docgen():
+    """Register the docgen with the GRAMPS plugin system.
+    """
+    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
+    except:
+        mtype = _('PDF document')
+        print_label = None
+        
+    pmgr = PluginManager.get_instance()
+    pmgr.register_text_doc(mtype, PdfDoc, 1, 1, ".pdf", print_label)
+    pmgr.register_draw_doc(mtype, PdfDoc, 1, 1, ".pdf", print_label)
+    pmgr.register_book_doc(mtype, PdfDoc, 1, 1, ".pdf", print_label)
+
+register_docgen()