Add shapes plugin (#107)

Signed-off-by: John Shepherd <[email protected]>

Author: John

include/ignition/gazebo/gui/GuiEvents.hh

@@ -18,6 +18,7 @@
 #define IGNITION_GAZEBO_GUI_GUIEVENTS_HH_
 
 #include <QEvent>
+#include <string>
 #include <utility>
 #include <vector>
 #include <ignition/math/Vector3.hh>
@@ -159,6 +160,27 @@ namespace events
     /// \brief Unique type for this event.
     static const QEvent::Type kType = QEvent::Type(QEvent::User + 3);
   };
+
+  /// \brief Event called to spawn a preview model.  Used in shapes plugin.
+  class SpawnPreviewModel : public QEvent
+  {
+    public: explicit SpawnPreviewModel(std::string &_modelSdfString)
+        : QEvent(kType), modelSdfString(_modelSdfString)
+    {
+    }
+    /// \brief Unique type for this event.
+    static const QEvent::Type kType = QEvent::Type(QEvent::User + 4);
+
+    /// \brief Get the sdf string of the model.
+    /// \return The model sdf string
+    public: std::string ModelSdfString() const
+    {
+      return this->modelSdfString;
+    }
+
+    /// \brief The sdf string of the model to be previewed.
+    std::string modelSdfString;
+  };
 }  // namespace events
 }
 }  // namespace gui

include/ignition/gazebo/rendering/SceneManager.hh

@@ -64,6 +64,10 @@ inline namespace IGNITION_GAZEBO_VERSION_NAMESPACE {
     /// \param[in] _id World ID.
     public: void SetWorldId(Entity _id);
 
+    /// \brief Get the world's ID.
+    /// \return World ID
+    public: Entity WorldId() const;
+
     /// \brief Create a model
     /// \param[in] _id Unique model id
     /// \param[in] _model Model sdf dom

src/gui/plugins/CMakeLists.txt

@@ -85,6 +85,7 @@ add_subdirectory(component_inspector)
 add_subdirectory(entity_tree)
 add_subdirectory(grid_config)
 add_subdirectory(scene3d)
+add_subdirectory(shapes)
 add_subdirectory(transform_control)
 add_subdirectory(video_recorder)
 add_subdirectory(view_angle)

src/gui/plugins/scene3d/GzScene3D.qml

@@ -40,6 +40,9 @@ Rectangle {
     onEntered: {
       GzScene3D.OnFocusWindow()
     }
+    onPositionChanged: {
+      GzScene3D.OnHovered(mouseArea.mouseX, mouseArea.mouseY);
+    }
   }
 
   RenderWindow {