[gnome-maps/wip/routing: 1/2] Add Route classes



commit 038c3fba582596ca188dca3830897add0f2fec15
Author: Mattias Bengtsson <mattias jc bengtsson gmail com>
Date:   Thu Aug 22 08:25:04 2013 +0200

    Add Route classes
    
    A Route is an array of Route.Segment and metadata.
    
    A Route.Segment is a lineString (an array of coordinates) that forms
    the road until the next segment, a human readable description of how to
    continue onto that road and some other metadata.

 src/route.js |   85 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 85 insertions(+), 0 deletions(-)
---
diff --git a/src/route.js b/src/route.js
new file mode 100644
index 0000000..eeb52ad
--- /dev/null
+++ b/src/route.js
@@ -0,0 +1,85 @@
+/* -*- Mode: JS2; indent-tabs-mode: nil; js2-basic-offset: 4 -*- */
+/* vim: set et ts=4 sw=4: */
+/*
+ * Copyright (c) 2013 Mattias Bengtsson.
+ *
+ * GNOME Maps is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * GNOME Maps is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with GNOME Maps; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Author: Mattias Bengtsson <mattias jc bengtsson gmail com>
+ */
+
+const Lang = imports.lang;
+const Champlain = imports.gi.Champlain;
+
+const PointType = {
+    START:  0,
+    END:    1,
+    NORMAL: 2,
+    VIA:    3
+};
+
+const Direction = {
+    LEFT:         0,
+    SHARP_LEFT:   1,
+    SLIGHT_LEFT:  2,
+    RIGHT:        3,
+    SHARP_RIGHT:  4,
+    SLIGHT_RIGHT: 5,
+    FORWARD:      6,
+    U_TURN:       7,
+    ROUNDABOUT:   8
+};
+
+const Route = new Lang.Class({
+    Name: 'Route',
+
+    _init: function(segments, { distance, time, bbox }) {
+        this.segments = segments;
+        this.distance = distance;
+        this.time = time;
+        this.bbox = bbox || this._bbox(segments);
+    },
+
+    _bbox: function(segments) {
+        let bbox = new Champlain.BoundingBox();
+        segments.forEach(function(segment) {
+            bbox.compose(segment.getBbox());
+        });
+        return bbox;
+    }
+});
+
+const Segment = new Lang.Class({
+    Name: 'Segment',
+
+    _init: function(lineString, { type, direction, distance, description, bbox }) {
+        this._lineString = lineString;
+        this._type = type;
+        this.direction = direction;
+        this.distance = distance;
+        this.description = description;
+        this._bbox = bbox || undefined;
+    },
+
+    getBbox: function() {
+        if(!this._bbox) {
+            this._bbox = new Champlain.BoundingBox();
+            this._lineString.forEach(function(coordinate) {
+                this._bbox.extend(coordinate.latitude, coordinate.longitude);
+            }, this);
+        }
+        return this._bbox;
+    }
+});


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