From 44642b48203b3ee2fa9e281f31ed9fed3f60ee79 Mon Sep 17 00:00:00 2001
From: Jules Laplace <jules@okfoc.us>
Date: Tue, 21 Jul 2015 13:23:22 -0400
Subject: find closest segment

---
 .../rectangles/engine/map/tools/polyline.js        | 69 ++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 public/assets/javascripts/rectangles/engine/map/tools/polyline.js

(limited to 'public/assets/javascripts/rectangles/engine/map/tools/polyline.js')

diff --git a/public/assets/javascripts/rectangles/engine/map/tools/polyline.js b/public/assets/javascripts/rectangles/engine/map/tools/polyline.js
new file mode 100644
index 0000000..559aea8
--- /dev/null
+++ b/public/assets/javascripts/rectangles/engine/map/tools/polyline.js
@@ -0,0 +1,69 @@
+var PolylineTool = MapTool.extend(function (base) {
+  var exports = {}
+  exports.down = function(e, cursor){
+
+    // rightclick?
+    if (e.ctrlKey || e.which === 3) {
+      e.preventDefault()
+      e.stopPropagation()
+      if (map.ui.placing) {
+        // close polyline or cancel
+        map.ui.placing = false
+        if (line.points.length > 2) {
+          line.build()
+        }
+        else {
+          line.reset()
+        }
+        return
+      }
+      map.ui.tools.position.rightclick(e, cursor)
+      return
+    }
+
+    // compare to initial point
+    var p = last_point.clone()
+    if (map.ui.placing) {
+      if (line.canCloseWith(p)) {
+        line.close()
+        line.build()
+        map.ui.placing = false
+      }
+      else {
+        line.add(p)
+      }
+    }
+    else {
+      map.ui.placing = true
+      line = new Polyline ()
+      line.add(p)
+    }
+  }
+  exports.move = function(e, cursor){
+    last_point.a = cursor.x.a
+    last_point.b = cursor.y.a
+    if (map.ui.placing && line.canCloseWith(last_point)) {
+      document.body.style.cursor = "pointer"
+      last_point.assign(line.points[0])
+      cursor.x.a = cursor.x.b = last_point.a
+      cursor.y.a = cursor.y.b = last_point.b
+      return
+    }
+    var end_point = shapes.findClosestEndPoint(last_point)
+    if (end_point) {
+      document.body.style.cursor = "pointer"
+      last_point.assign(end_point.point)
+      cursor.x.a = cursor.x.b = last_point.a
+      cursor.y.a = cursor.y.b = last_point.b
+      return
+    }
+    else {
+      document.body.style.cursor = "crosshair"
+    }
+  }
+  exports.cancel = function(){
+    if (map.ui.placing) { line.reset() }
+    map.ui.placing = false
+  }
+  return exports
+})
\ No newline at end of file
-- 
cgit v1.2.3-70-g09d2