Geography : bug #06451 : Don't see chinese characters in the geography view.
svn: r21364
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834a14fc38
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@ -47,6 +47,7 @@ _LOG = logging.getLogger("maps.messagelayer")
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#-------------------------------------------------------------------------
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from gi.repository import Gdk
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import cairo
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from gi.repository import Pango, PangoCairo
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#-------------------------------------------------------------------------
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#
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@ -76,23 +77,22 @@ class MessageLayer(GObject.GObject, osmgpsmap.MapLayer):
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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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self.font = "Sans"
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self.size = 13
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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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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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self.font = "Sans"
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self.size = 13
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def set_font_attributes(self, font, size, color):
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"""
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@ -109,43 +109,36 @@ class MessageLayer(GObject.GObject, osmgpsmap.MapLayer):
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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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self.message += "\n%s" % message if self.message is not "" else 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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Draw all the messages
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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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ctx.save()
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font_size = "%s %d" % (self.font, self.size)
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font = Pango.FontDescription(font_size)
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descr = Pango.font_description_from_string(self.font)
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descr.set_size(self.size * Pango.SCALE)
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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.save()
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ctx.move_to(100, 5)
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layout = PangoCairo.create_layout(ctx)
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layout.set_font_description(descr)
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layout.set_indent(Pango.SCALE * 0)
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layout.set_alignment(Pango.Alignment.LEFT)
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layout.set_wrap(Pango.WrapMode.WORD_CHAR)
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layout.set_spacing(Pango.SCALE * 3)
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layout.set_width(d_width * Pango.SCALE)
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layout.set_text(self.message, -1)
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PangoCairo.show_layout(ctx, layout)
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ctx.restore()
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ctx.stroke()
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def do_render(self, gpsmap):
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