171 lines
5.1 KiB
Python
171 lines
5.1 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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from gi.repository import GObject
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import operator
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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.messagelayer")
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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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from gi.repository import Gdk
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import cairo
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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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#-------------------------------------------------------------------------
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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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from gi.repository import OsmGpsMap as osmgpsmap
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except:
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raise
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class MessageLayer(GObject.GObject, osmgpsmap.MapLayer):
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"""
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This is the layer used to display messages over the map
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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.message = []
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self.color = "black"
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self.font = "Arial"
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self.size = 18
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#families = font_map.list_families()
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def clear_messages(self):
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"""
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reset the layer attributes.
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"""
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self.message = []
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def clear_font_attributes(self):
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"""
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reset the font attributes.
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"""
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self.color = "black"
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self.font = "Arial"
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self.size = 18
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def set_font_attributes(self, font, size, color):
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"""
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Set the font color, size and name
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"""
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if color is not None:
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self.color = color
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if font is not None:
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self.font = font
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if size is not None:
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self.size = size
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def add_message(self, message):
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"""
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Add a message
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"""
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self.message.append(message)
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def do_draw(self, gpsmap, ctx):
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"""
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Draw the two extreme dates
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"""
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ctx.select_font_face(self.font,
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cairo.FONT_SLANT_NORMAL,
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cairo.FONT_WEIGHT_NORMAL)
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ctx.set_font_size(int(self.size))
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color = Gdk.color_parse(self.color)
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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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0.9) # transparency
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coord_x = 100
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coord_y = int(self.size) # Show the first line under the zoom button
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d_width = gpsmap.get_allocation().width
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gpsmap.set_size_request(300,400)
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d_width -= 100
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for line in self.message:
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line_to_print = line
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(x_bearing, y_bearing, width, height, x_advance, y_advance) = ctx.text_extents(line_to_print)
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while ( width > d_width ):
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line_length = len(line_to_print)
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character_length = int(width/line_length) + 1
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max_length = int(d_width / character_length) - 1
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while line_to_print[max_length] != ' ':
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max_length -= 1 # cut the line at a new word
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ctx.move_to(coord_x, coord_y)
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ctx.show_text(line_to_print[:max_length])
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line_to_print = line_to_print[max_length:]
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(x_bearing, y_bearing, width, height, x_advance, y_advance) = ctx.text_extents(line_to_print)
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coord_y += int(self.size) # calculate the next line position
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ctx.move_to(coord_x, coord_y)
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ctx.show_text(line_to_print)
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coord_y += int(self.size) # calculate the next line position
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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(MessageLayer)
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