195 lines
6.6 KiB
Python
195 lines
6.6 KiB
Python
# -*- python -*-
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# -*- coding: utf-8 -*-
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#
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# Gramps - a GTK+/GNOME based genealogy program
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#
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# Copyright (C) 2011-2012 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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#
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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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import os
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import gobject
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from math import *
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#------------------------------------------------------------------------
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#
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# Set up logging
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#
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#------------------------------------------------------------------------
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import logging
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_LOG = logging.getLogger("maps.lifeway")
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#-------------------------------------------------------------------------
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#
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# GTK/Gnome modules
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#
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#-------------------------------------------------------------------------
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import gtk
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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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import cairo
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#-------------------------------------------------------------------------
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#
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# osmGpsMap
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#
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#-------------------------------------------------------------------------
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try:
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import osmgpsmap
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except:
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raise
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class LifeWayLayer(gobject.GObject, osmgpsmap.GpsMapLayer):
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"""
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This is the layer used to display tracks or the life way for one or several
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individuals.
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"""
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def __init__(self):
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"""
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Initialize the layer
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"""
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gobject.GObject.__init__(self)
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self.lifeways_ref = []
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self.lifeways = []
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self.comments = []
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def clear_ways(self):
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"""
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reset the layer attributes.
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"""
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self.lifeways_ref = []
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self.lifeways = []
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self.comments = []
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def add_way_ref(self, points, color, radius):
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"""
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Add a track or life way.
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alpha is the transparence
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radius is the size of the track.
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"""
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self.lifeways_ref.append((points, color, radius))
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def add_way(self, points, color):
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"""
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Add a track or life way.
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"""
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self.lifeways.append((points, color))
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def do_draw(self, gpsmap, drawable):
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"""
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Draw all tracks or life ways.
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"""
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ctx = drawable.cairo_create()
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for lifeway in self.lifeways_ref:
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ctx.set_line_cap(cairo.LINE_CAP_ROUND)
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ctx.set_line_join(cairo.LINE_JOIN_ROUND)
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ctx.set_line_width(3)
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color = gtk.gdk.color_parse(lifeway[1])
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ctx.set_source_rgba(float(color.red / 65535.0),
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float(color.green / 65535.0),
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float(color.blue / 65535.0),
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0.1) # transparency
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ggc = drawable.new_gc()
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rds = float(lifeway[2])
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for point in lifeway[0]:
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conv_pt1 = osmgpsmap.point_new_degrees(point[0], point[1])
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coord_x1, coord_y1 = gpsmap.convert_geographic_to_screen(conv_pt1)
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conv_pt2 = osmgpsmap.point_new_degrees(point[0]+rds, point[1])
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coord_x2, coord_y2 = gpsmap.convert_geographic_to_screen(conv_pt2)
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coy = abs(coord_y2-coord_y1)
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conv_pt2 = osmgpsmap.point_new_degrees(point[0], point[1]+rds)
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coord_x2, coord_y2 = gpsmap.convert_geographic_to_screen(conv_pt2)
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cox = abs(coord_x2-coord_x1)
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cox = cox if cox > 0.001 else 0.001
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coy = coy if coy > 0.001 else 0.001
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coz = abs( 1.0 / float(cox) * float(coy) )
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coz = coz if coz > 0.001 else 0.001
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ctx.save()
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ctx.scale(1.0,coz)
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ctx.move_to(coord_x1, coord_y1)
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ctx.translate(coord_x1, coord_y1/coz)
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ctx.arc(0.0, 0.0, cox, 0.0, 2*pi)
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ctx.fill()
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ctx.restore()
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top_left = osmgpsmap.point_new_degrees(point[0] + lifeway[2],
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point[1] - lifeway[2])
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bottom_right = osmgpsmap.point_new_degrees(point[0] - lifeway[2],
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point[1] + lifeway[2])
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crd_x, crd_y = gpsmap.convert_geographic_to_screen(top_left)
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crd_x2, crd_y2 = gpsmap.convert_geographic_to_screen(bottom_right)
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drawable.draw_arc(ggc, False, crd_x, crd_y, crd_x2 - crd_x,
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crd_y2 - crd_y, 0, 360*64)
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for lifeway in self.lifeways:
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ctx.set_operator(cairo.OPERATOR_ATOP)
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ctx.set_line_width(3.0)
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map_points = []
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for point in lifeway[0]:
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conv_pt = osmgpsmap.point_new_degrees(point[0], point[1])
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coord_x, coord_y = gpsmap.convert_geographic_to_screen(conv_pt)
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map_points.append((coord_x, coord_y))
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color = gtk.gdk.color_parse(lifeway[1])
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ctx.set_source_rgb(float(color.red / 65535.0),
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float(color.green / 65535.0),
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float(color.blue / 65535.0))
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first = True
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for idx_pt in range(0, len(map_points)):
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if first:
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first = False
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ctx.move_to(map_points[idx_pt][0], map_points[idx_pt][1])
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else:
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ctx.line_to(map_points[idx_pt][0], map_points[idx_pt][1])
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ctx.stroke()
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if len(map_points) == 1 : # We have only one point
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crdx = map_points[0][0]
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crdy = map_points[0][1]
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ctx.move_to(crdx, crdy)
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ctx.line_to(crdx + 1, crdy + 1)
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ctx.stroke()
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def do_render(self, gpsmap):
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"""
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render the layer
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"""
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pass
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def do_busy(self):
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"""
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set the layer busy
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"""
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return False
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def do_button_press(self, gpsmap, gdkeventbutton):
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"""
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When we press a button.
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"""
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return False
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gobject.type_register(LifeWayLayer)
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