organicmaps/kothic
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line, point and area selector aliases.

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This commit is contained in:
Komяpa 2010-09-19 11:53:57 +03:00
parent ba14277ca7
commit 4472a93aed
1 changed files with 33 additions and 9 deletions
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42
src/mapcss/Rule.py
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@ -16,6 +16,7 @@
# along with kothic. If not, see <http://www.gnu.org/licenses/>.
class Rule():
def __init__(self, s=''):
self.conditions = []
@ -27,27 +28,29 @@ class Rule():
return "%s|z%s-%s %s"%(self.subject,self.minZoom,self.maxZoom, self.conditions)
#public function test(obj:Entity,tags:Object):Boolean {
def test(self, obj, tags, zoom):
if (self.subject!='') & (obj!=self.subject):
if (self.subject!='') and _test_feature_compatibility(obj, self.subject, tags):
return False
if (zoom < self.minZoom) or (zoom > self.maxZoom):
return False
v=True
i=0
v="a"
for condition in self.conditions:
r = condition.test(tags)
if i==0:
if v=="a":
v=r
elif self.isAnd:
v = v & r
else:
v = v | r
i += 1
return v
def get_interesting_tags(self, obj, zoom):
if obj:
if (self.subject!='') & (obj!=self.subject):
if (self.subject!='') and _test_feature_compatibility(obj, self.subject, tags):
return set()
if zoom:
if (zoom < self.minZoom) or (zoom > self.maxZoom):
@ -58,7 +61,7 @@ class Rule():
return a
def get_sql_hints(self, obj, zoom):
if obj:
if (self.subject!='') & (obj!=self.subject):
if (self.subject!='') and _test_feature_compatibility(obj, self.subject, {":area":"yes"}):
return set()
if zoom:
if (zoom < self.minZoom) or (zoom > self.maxZoom):
@ -66,4 +69,25 @@ class Rule():
a = set()
for condition in self.conditions:
a.add(condition.get_sql())
return a
return a
def _test_feature_compatibility (self, f1, f2, tags={}):
"""
Checks if feature of type f1 is compatible with f2.
"""
if f2 == "area" and f1 in ("way", "POLYGON"):
if ":area" in tags:
pass
else:
return False
elif f2 == "line" and f1 in ("way", "LINESTRING"):
pass
elif f2 == "point" and f1 in ("node", "POINT"):
pass
elif f2 == f1:
pass
else:
return False
return True