def label_change_cb(self, *args):
if self.layer is None or self.updating:
return
font = self.label_font.entry.get_chars(0, -1)
field_name = self.label_field.entry.get_chars(0, -1)
color = self.label_color.current_color
color = gvogrfs.gv_to_ogr_color(color)
ogrfs = self.layer.get_property('_gv_ogrfs_point')
ogrfs_obj = gvogrfs.OGRFeatureStyle()
try:
ogrfs_obj.parse(ogrfs)
except:
print 'an error occurred parsing the ogrfs property:\n', ogrfs
#remove the old label
ogrfs_obj.remove_part('LABEL')
if field_name != 'disabled' and len(field_name) != 0:
ogrfs_label = gvogrfs.OGRFeatureStylePart()
ogrfs_label.parse('LABEL(t:{%s},f:"%s",c:%s)' %
(field_name, font, color))
ogrfs_obj.add_part(ogrfs_label)
self.layer.set_property('_gv_ogrfs_point', ogrfs_obj.unparse())
self.layer.display_change()
def set_ogrfs(self, ogrfs_obj, layer=None):
"""
set the ogr feature specification from the shape object passed,
or from the layer if the shape has none, or provide a default
"""
if ogrfs_obj is None:
ogrfs_obj = gvogrfs.OGRFeatureStylePart()
ogrfs_obj.parse('SYMBOL(id:"ogr-sym-0",c:#88FF88)')
self.ogrfs_obj = ogrfs_obj
self.layer = layer
self.gui_update()
def set_default_ogrfs(self, prototype):
if prototype is None or len(prototype) == 0:
return
try:
ogrfs_obj = gvogrfs.OGRFeatureStylePart()
ogrfs_obj.parse(prototype)
except:
return
text_parm = gvogrfs.OGRFeatureStyleParam()
text_parm.parse('t:""')
ogrfs_obj.set_parm(text_parm)
self.default_ogrfs = ogrfs_obj.unparse()
def set_ogrfs(self, ogrfs_obj, layer=None, fontlist=None, shape_obj=None):
if layer is not None:
self.layer = layer
if ogrfs_obj is None:
ogrfs_obj = gvogrfs.OGRFeatureStylePart()
font = pgufont.XLFDFontSpec()
default_font = gview.get_preference('default-font')
if default_font is None:
font.set_font_part('Family', 'fixed')
else:
font.parse_font_spec(default_font)
if self.enable_offsets:
dx = self.x_offset.get_value_as_float()
dy = self.y_offset.get_value_as_float()
ogrfs_obj.parse('LABEL(t:"",f:"%s",c:#88FF88)' % font)
self.ogrfs_obj = ogrfs_obj
self.shape_obj = shape_obj
self.gui_update()
def symbol_cb(self, widget, *args):
"""
update the symbol. This might have been called because the color
changed also, so update the _point_color property too.
"""
if self.layer is None or self.updating:
return
symbol = self.point_symbol.entry.get_text()
ogrfs = self.layer.get_property('_gv_ogrfs_point')
ogrfs_obj = gvogrfs.OGRFeatureStyle()
try:
ogrfs_obj.parse(ogrfs)
except:
print 'an error occurred parsing the ogrfs property:\n', ogrfs
#remove the old symbol
ogrfs_obj.remove_part('SYMBOL')
point_sym_text = '"ogr-sym-%s"' % symbols.index(symbol)
color = self.point_color.current_color
#should this only be done on point layers?
point_ogr_color = gvogrfs.gv_to_ogr_color(color)
point_size = self.point_size.entry.get_text()
ogr_part = 'SYMBOL(c:' + point_ogr_color + ',id:' + \
point_sym_text + ')'
ogrfs_sym = gvogrfs.OGRFeatureStylePart()
ogrfs_sym.parse(ogr_part)
ogrfs_obj.add_part(ogrfs_sym)
self.layer.set_property('_gv_ogrfs_point', ogrfs_obj.unparse())
prop = str(color[0]) + ' ' + str(color[1]) + \
' ' + str(color[2]) + ' ' + str(color[3])
self.layer.set_property('_point_color', prop)
self.layer.display_change()
def label_change_cb(self, *args):
if self.layer is None or self.updating:
return
font = self.label_font.get_font()
field_name = self.label_field.entry.get_chars(0, -1)
text_value = ''
if self.text_entry is not None:
text_value = self.text_entry.get_text()
color = self.label_color.current_color
color = gvogrfs.gv_to_ogr_color(color)
import string
x_off = ''
y_off = ''
if self.enable_offsets:
#handle user editing of the values in the x and y offsets.
#something odd happens when listening to the 'changed' signal
#of the spin box, the text value is difference from the float
#value, even if the values should match. This hack forces the
#spin buttons to update the value and exits because this
#will be called again right away
x = self.x_offset.get_value_as_float()
y = self.y_offset.get_value_as_float()
sx = self.x_offset.get_text()
sy = self.y_offset.get_text()
try:
if float(sx) != x:
self.x_offset.set_value(float(sx))
return
if float(sy) != y:
self.y_offset.set_value(float(sy))
return
except:
return
if 0.0 != x:
x_off = 'dx:%s,' % x
if 0.0 != y:
y_off = 'dy:%s,' % -y
if field_name == 'disabled' or len(field_name) == 0:
if text_value is not None:
ogrfs = 'LABEL(%s%st:\"%s\",f:"%s",c:%s)' % \
(x_off, y_off, text_value,font,color)
else:
ogrfs = None
else:
ogrfs = 'LABEL(%s%st:{%s},f:"%s",c:%s)' % \
(x_off, y_off, field_name, font, color)
if ogrfs is None:
self.ogrfs_obj = None
else:
self.ogrfs_obj = gvogrfs.OGRFeatureStylePart()
self.ogrfs_obj.parse(ogrfs)
self.gui_update()
self.notify('ogrfs-changed')