From 3b7d51f34ad75f531b670e480dd3ca152d785f76 Mon Sep 17 00:00:00 2001
From: kshalnev <k.shalnev@gmail.com>
Date: Sat, 21 Nov 2015 12:58:57 +0300
Subject: [PATCH] Added tool which shows classes without a style

---
 tools/python/stylesheet/drules_info.py | 73 ++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 tools/python/stylesheet/drules_info.py

diff --git a/tools/python/stylesheet/drules_info.py b/tools/python/stylesheet/drules_info.py
new file mode 100644
index 0000000000..596e3a6d76
--- /dev/null
+++ b/tools/python/stylesheet/drules_info.py
@@ -0,0 +1,73 @@
+# Tool shows following information about classes
+#  - zooms range, for classes with a style
+#  - classes without a style
+
+import sys
+import csv
+import drules_struct_pb2
+
+def GetAllClasses(mapping_path):
+    class_order = []
+    for row in csv.reader(open(mapping_path), delimiter=';'):
+        cl = row[0].replace("|", "-")
+        if row[2] != "x":
+            class_order.append(cl)
+    class_order.sort()
+    return class_order
+
+def GetClassesZoomRange(drules_path):
+    drules = drules_struct_pb2.ContainerProto()
+    drules.ParseFromString(open(drules_path).read())
+    result = {}
+    for rule in drules.cont:
+        name = str(rule.name)
+        zooms = [-1, -1]
+        for elem in rule.element:
+            if elem.scale >= 0:
+                if zooms[0] == -1 or elem.scale < zooms[0]:
+                    zooms[0] = elem.scale
+                if zooms[1] == -1 or elem.scale > zooms[1]:
+                    zooms[1] = elem.scale
+        if zooms[0] != -1:
+            if name in result:
+                if result[name][0].scale < zooms[0]:
+                    zooms[0] = result[name][0].scale
+                if result[name][1].scale > zooms[1]:
+                    zooms[1] = result[name][1].scale
+            result[name] = zooms
+    return result
+
+def ShowZoomInfo(mapping_path, drules_path):
+    classes_order = GetAllClasses(mapping_path)
+    classes_zooms = GetClassesZoomRange(drules_path)
+
+    classes_with_style = []
+    classes_without_style = []
+
+    for c in classes_order:
+        if c in classes_zooms:
+            classes_with_style.append(c)
+        else:
+            classes_without_style.append(c)
+
+    classes_with_style.sort()
+    classes_without_style.sort()
+
+    print "Classes with a style: (%s)" % (str(len(classes_with_style)))
+    for c in classes_with_style:
+        print "  %s - [%s, %s]" % (c, str(classes_zooms[c][0]), str(classes_zooms[c][1]))
+
+    print "Classes without a style (%s):" % (len(classes_without_style))
+    for c in classes_without_style:
+        print "  %s" % c
+
+if __name__ == "__main__":
+
+    if len(sys.argv) < 3:
+        print "Usage:"
+        print "drules_info.py <mapcss_mapping_file> <drules_proto_file>"
+        exit(-1)
+
+    mapping_path = sys.argv[1]
+    drules_path = sys.argv[2]
+    ShowZoomInfo(mapping_path, drules_path)