pamhyr: Add just-in-time database geometry loading.

src/Model/Geometry/Profile.py

@@ -57,18 +57,34 @@ class Profile(object):
         self._profile_type = _type
 
     def __len__(self):
-        return len(self._points)
+        return len(self.points)
 
     @property
     def number_points(self):
-        return len(self._points)
+        return len(self.points)
+
+    def _get_points_list(self):
+        # Points list generator is type (int, Point) with the first
+        # element the index of the Point in list
+        return list(
+            map(
+                lambda p: p[1],
+                sorted(
+                    self._points,
+                    key = lambda p: p[0]
+                )
+            )
+        )
 
     @property
     def points(self):
-        return self._points.copy()
+        if not isinstance(self._points, list):
+            self._points = self._get_points_list()
+
+        return self._points
 
     def point(self, index):
-        return self._points[index]
+        return self.points[index]
 
     @property
     def reach(self):
@@ -115,7 +131,7 @@ class Profile(object):
 
     @property
     def nb_points(self):
-        return len(self._points)
+        return len(self.points)
 
     @property
     def kp(self):
@@ -170,8 +186,8 @@ class Profile(object):
         self._status.modified()
 
     def point(self, i:int):
-        if i < len(self._points):
-            return self._points[i]
+        if i < len(self.points):
+            return self.points[i]
 
         return None
 
@@ -181,7 +197,7 @@ class Profile(object):
         Returns:
             The list of named point
         """
-        return [point for point in self._points
+        return [point for point in self.points
                 if point.point_is_named()]
 
 
@@ -195,7 +211,7 @@ class Profile(object):
         Returns:
             Nothing.
         """
-        self._points.insert(index, point)
+        self.points.insert(index, point)
         self._status.modified()
 
 
@@ -218,7 +234,7 @@ class Profile(object):
             )
         )
 
-        self._points = list(
+        self.points = list(
             filter(
                 lambda p: p not in points,
                 self.points
@@ -235,7 +251,7 @@ class Profile(object):
         Returns:
             Nothing.
         """
-        self._points = list(
+        self.points = list(
             filter(
                 lambda p: p not in points,
                 self.points
@@ -246,10 +262,10 @@ class Profile(object):
     # Move
 
     def move_up_point(self, index: int):
-        if index < len(self._points):
+        if index < len(self.points):
             next = index - 1
 
-            p = self._points
+            p = self.points
             p[index], p[next] = p[next], p[index]
             self._status.modified()
 
@@ -257,7 +273,7 @@ class Profile(object):
         if index >= 0:
             prev = index + 1
 
-            p = self._points
+            p = self.points
             p[index], p[prev] = p[prev], p[index]
             self._status.modified()
 
@@ -271,8 +287,8 @@ class Profile(object):
         elif column == 'z':
             predicate = lambda p: p.z
 
-        self._points = sorted(
-            self._points,
+        self.points = sorted(
+            self.points,
             key=predicate,
             reverse=is_reversed
         )
@@ -280,10 +296,10 @@ class Profile(object):
 
     @timer
     def sort_with_indexes(self, indexes: list):
-        if len(self._points) != len(indexes):
+        if len(self.points) != len(indexes):
             logger.critical("Indexes list do not correspond to point list")
 
-        self._points = list(
+        self.points = list(
             map(
                 lambda x: x[1],
                 sorted(