Make ViewAngle work with MinimalScene (#1016)

Signed-off-by: Louise Poubel <[email protected]>

examples/worlds/minimal_scene.sdf

@@ -14,12 +14,12 @@ Features:
 * Select entities
 * Transform controls
 * Spawn entities through GUI
+* View angles
 
 Missing for parity with GzScene3D:
 
 * Context menu
 * Record video
-* View angles
 * View collisions, wireframe, transparent, CoM, etc
 * Drag and drop from Fuel / meshes
 * ...
@@ -132,8 +132,6 @@ Missing for parity with GzScene3D:
         <play_pause>true</play_pause>
         <step>true</step>
         <start_paused>true</start_paused>
-        <service>/world/buoyancy/control</service>
-        <stats_topic>/world/buoyancy/stats</stats_topic>
 
       </plugin>
 
@@ -158,7 +156,6 @@ Missing for parity with GzScene3D:
         <real_time>true</real_time>
         <real_time_factor>true</real_time_factor>
         <iterations>true</iterations>
-        <topic>/world/buoyancy/stats</topic>
       </plugin>
 
       <plugin filename="Spawn" name="Spawn Entities">
@@ -250,6 +247,16 @@ Missing for parity with GzScene3D:
         </ignition-gui>
       </plugin>
 
+      <!-- View angle -->
+      <plugin filename="ViewAngle" name="View angle">
+        <ignition-gui>
+          <property type="string" key="state">docked</property>
+        </ignition-gui>
+
+        <!-- disable legacy features used to connect this plugin to GzScene3D -->
+        <legacy>false</legacy>
+      </plugin>
+
     </gui>
 
     <light type="directional" name="sun">

src/gui/plugins/view_angle/CMakeLists.txt

@@ -1,6 +1,8 @@
 gz_add_gui_plugin(ViewAngle
   SOURCES ViewAngle.cc
   QT_HEADERS ViewAngle.hh
+  PRIVATE_LINK_LIBS
+    ${PROJECT_LIBRARY_TARGET_NAME}-rendering
 )