Added flag "allow-toggle-cockpit" so that 3d/2d toggle is not attempted for

aircraft that do not have 3d cockpit configured.  Toggling is done with the
"c" key.  Note also that for now, since the 3d models don't have a "small"
panel defined, the "s" key is disabled if "allow-toggle-cockpit" is true.

Aircraft/c172-3d-set.xml

@@ -15,6 +15,7 @@ October 23 2001 John Check, fgpanels@rockfish.net
  <sim>
 
   <virtual-cockpit archive="y">true</virtual-cockpit>
+  <allow-toggle-cockpit archive="y">true</allow-toggle-cockpit>
 
   <flight-model archive="y">jsb</flight-model>
   <aero archive="y">c172</aero>
@@ -88,3 +89,4 @@ October 23 2001 John Check, fgpanels@rockfish.net
   
 </PropertyList>
 
+

Aircraft/c310u3a-3d-set.xml

@@ -15,6 +15,8 @@ March 2002 Jim Wilson, jimw@kelcomaine.com
  <sim>
   
   <virtual-cockpit archive="y">true</virtual-cockpit>
+  <allow-toggle-cockpit archive="y">true</allow-toggle-cockpit>
+
   <flight-model archive="y">jsb</flight-model>
   <aero archive="y">c310u3a</aero>
 
@@ -116,3 +118,4 @@ March 2002 Jim Wilson, jimw@kelcomaine.com
 
 
 
+

keyboard.xml

@@ -635,29 +635,47 @@ calculated by adding 256 to the GLUT key value in glut.h.
   <name>c</name>
   <desc>Toggle 3D/2D cockpit</desc>
   <binding>
+   <condition>
+     <property>/sim/allow-toggle-cockpit</property>
+   </condition>
    <command>property-swap</command>
    <property>/sim/panel[0]/path</property>
    <property>/sim/panel[1]/path</property>
   </binding>
   <binding>
+   <condition>
+     <property>/sim/allow-toggle-cockpit</property>
+   </condition>
    <command>property-assign</command>
    <property>/sim/current-view/heading-offset-deg</property>
    <value type="double">0</value>
   </binding>
   <binding>
+   <condition>
+     <property>/sim/allow-toggle-cockpit</property>
+   </condition>
    <command>property-assign</command>
    <property>/sim/current-view/pitch-offset-deg</property>
    <value type="double">0</value>
   </binding>
   <binding>
+   <condition>
+     <property>/sim/allow-toggle-cockpit</property>
+   </condition>
    <desc>Load panel.</desc>
    <command>panel-load</command>
   </binding>
   <binding>
+   <condition>
+     <property>/sim/allow-toggle-cockpit</property>
+   </condition>
    <command>property-toggle</command>
    <property>/sim/view/internal</property>
   </binding>
   <binding>
+   <condition>
+     <property>/sim/allow-toggle-cockpit</property>
+   </condition>
    <command>property-toggle</command>
    <property>/sim/virtual-cockpit</property>
   </binding>
@@ -699,11 +717,21 @@ calculated by adding 256 to the GLUT key value in glut.h.
   <name>s</name>
   <desc>Swap panels.</desc>
   <binding>
+   <condition>
+     <not>
+     <property>/sim/allow-toggle-cockpit</property>
+     </not>
+   </condition>
    <command>property-swap</command>
    <property>/sim/panel/path</property>
    <property>/sim/panel_2/path</property>
   </binding>
   <binding>
+   <condition>
+     <not>
+     <property>/sim/allow-toggle-cockpit</property>
+     </not>
+   </condition>
    <desc>Load panel.</desc>
    <command>panel-load</command>
   </binding>
@@ -1150,3 +1178,4 @@ calculated by adding 256 to the GLUT key value in glut.h.
 
 
 
+