From 039c92b2f15ec5e94ec391aa68bcd7b454f260f3 Mon Sep 17 00:00:00 2001
From: Jason Watkins <jason-watkins@outlook.com>
Date: Fri, 8 May 2015 13:34:32 -0700
Subject: [PATCH] Added support for VIEW command to Python client.

---
 Python/src/xpc.py                 | 32 +++++++++++++++++++++++++++++++
 TestScripts/Python Tests/Tests.py | 16 ++++++++++++++++
 2 files changed, 48 insertions(+)

diff --git a/Python/src/xpc.py b/Python/src/xpc.py
index 32b4d3c..c19bbdb 100644
--- a/Python/src/xpc.py
+++ b/Python/src/xpc.py
@@ -326,6 +326,23 @@ class XPlaneConnect(object):
         buffer = struct.pack("<4sxiiB" + str(msgLen) + "s", "TEXT", x, y, msgLen, msg)
         self.sendUDP(buffer)
 
+    def sendVIEW(self, view):
+        '''Sets the camera view in X-Plane
+
+            Args:
+              view: The view to use. The ViewType class provides named constants
+                    for known views.
+        '''
+        # Preconditions
+        if view < ViewType.Forwards or view > ViewType.FullscreenNoHud:
+            raise ValueError("Unknown view command.")
+
+        # Pack buffer
+        buffer = struct.pack("<4sxi", "VIEW", view)
+
+        # Send message
+        self.sendUDP(buffer)
+
     def sendWYPT(self, op, points):
         '''Adds, removes, or clears waypoints. Waypoints are three dimensional points on or
            above the Earth's surface that are represented visually in the simulator. Each
@@ -350,3 +367,18 @@ class XPlaneConnect(object):
         else:
             buffer = struct.pack("<4sxBB" + str(len(points)) + "f", "WYPT", op, len(points), *points)
         self.sendUDP(buffer)
+
+class ViewType(object):
+    Forwards = 73
+    Down = 74
+    Left = 75
+    Right = 76
+    Back = 77
+    Tower = 78
+    Runway = 79
+    Chase = 80
+    Follow = 81
+    FollowWithPanel = 82
+    Spot = 83
+    FullscreenWithHud = 84
+    FullscreenNoHud = 85
diff --git a/TestScripts/Python Tests/Tests.py b/TestScripts/Python Tests/Tests.py
index 558aa7c..2cdc825 100644
--- a/TestScripts/Python Tests/Tests.py	
+++ b/TestScripts/Python Tests/Tests.py	
@@ -319,6 +319,22 @@ class XPCTests(unittest.TestCase):
         # Cleanup
         client.close()
 
+    def test_sendView(self):
+        # Setup
+        dref = "sim/graphics/view/view_type"
+        fwd = 1000
+        chase = 1017
+
+        #Execution
+        with xpc.XPlaneConnect() as client:
+            client.sendVIEW(xpc.ViewType.Forwards)
+            result = client.getDREF(dref)
+            self.assertAlmostEqual(fwd, result[0], 1e-4)
+            client.sendVIEW(xpc.ViewType.Chase)
+            result = client.getDREF(dref)
+            self.assertAlmostEqual(chase, result[0], 1e-4)
+             
+
     def test_sendWYPT(self):
         # Setup
         client = xpc.XPlaneConnect()