Geography : reorganization, add a life way layer, some cleaning.

svn: r19209

src/plugins/lib/maps/lifewaylayer.py

@@ -0,0 +1,158 @@
+# -*- python -*-
+# -*- coding: utf-8 -*-
+#
+# Gramps - a GTK+/GNOME based genealogy program
+#
+# Copyright (C) 2011-2012       Serge Noiraud
+#
+# 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: grampsmaps.py 18399 2011-11-02 17:15:20Z noirauds $
+
+#-------------------------------------------------------------------------
+#
+# Python modules
+#
+#-------------------------------------------------------------------------
+import os
+import gobject
+
+#------------------------------------------------------------------------
+#
+# Set up logging
+#
+#------------------------------------------------------------------------
+import logging
+_LOG = logging.getLogger("maps.lifeway")
+
+#-------------------------------------------------------------------------
+#
+# GTK/Gnome modules
+#
+#-------------------------------------------------------------------------
+import gtk
+
+#-------------------------------------------------------------------------
+#
+# Gramps Modules
+#
+#-------------------------------------------------------------------------
+import const
+import cairo
+
+#-------------------------------------------------------------------------
+#
+# osmGpsMap
+#
+#-------------------------------------------------------------------------
+
+try:
+    import osmgpsmap
+except:
+    raise
+
+class LifeWayLayer(gobject.GObject, osmgpsmap.GpsMapLayer):
+    """
+    This is the layer used to display tracks or the life way for one or several
+    individuals.
+    """
+    def __init__(self):
+        """
+        Initialize the layer
+        """
+        gobject.GObject.__init__(self)
+        self.lifeways = []
+        self.lifeways_comment = []
+        self.comments = []
+
+    def clear_ways(self):
+        """
+        reset the layer attributes.
+        """
+        self.lifeways = []
+        self.lifeways_comment = []
+        self.comments = []
+
+    def add_way(self, points, color):
+        """
+        Add a track or life way.
+        """
+        self.lifeways.append((points, color))
+
+    def add_text(self, points, text):
+        """
+        Add a text to the track or life way.
+        """
+        self.lifeways_comment.append((points, text))
+
+    def do_draw(self, gpsmap, drawable):
+        """
+        Draw all tracks or life ways.
+        """
+        for lifeway in self.lifeways:
+            ctx = drawable.cairo_create()
+            ctx.set_line_width(3.0)
+            map_points = []
+            for point in lifeway[0]:
+                conv_pt = osmgpsmap.point_new_degrees(point[0], point[1])
+                coord_x, coord_y = gpsmap.convert_geographic_to_screen(conv_pt)
+                map_points.append((coord_x, coord_y))
+            color = gtk.gdk.color_parse(lifeway[1])
+            ctx.set_source_rgb(color.red / 65535,
+                               color.green / 65535,
+                               color.blue / 65535)
+            first = True
+            for idx_pt in range(0, len(map_points)):
+                if first:
+                    first = False
+                    ctx.move_to(map_points[idx_pt][0], map_points[idx_pt][1])
+                else:
+                    ctx.line_to(map_points[idx_pt][0], map_points[idx_pt][1])
+            ctx.stroke()
+
+        for comment in self.lifeways_comment:
+            ctx = drawable.cairo_create()
+            ctx.set_line_width(3.0)
+            ctx.select_font_face("Purisa",
+                                 cairo.FONT_SLANT_NORMAL,
+                                 cairo.FONT_WEIGHT_NORMAL)
+            ctx.set_font_size(13)
+            points = comment[0]
+            conv_pt = osmgpsmap.point_new_degrees(points[0][0], points[0][1])
+            coord_x, coord_y = gpsmap.convert_geographic_to_screen(conv_pt)
+            ctx.move_to(coord_x, coord_y)
+            ctx.show_text(comment[1])
+
+    def do_render(self, gpsmap):
+        """
+        render the layer
+        """
+        pass
+
+    def do_busy(self):
+        """
+        set the layer busy
+        """
+        return False
+
+    def do_button_press(self, gpsmap, gdkeventbutton):
+        """
+        When we press a button.
+        """
+        return False
+
+gobject.type_register(LifeWayLayer)
+