Create new GuiEvent HoverOnScene

include/ignition/gui/GuiEvents.hh

@@ -323,6 +323,29 @@ namespace ignition
  /// \brief Private data pointer
  IGN_UTILS_IMPL_PTR(dataPtr)
  };
+
+ /// \brief Event which is called to broadcast the 2D coordinates of a
+ /// user's mouse hover within the scene.
+ class IGNITION_GUI_VISIBLE HoverOnScene : public QEvent
+ {
+ /// \brief Constructor
+ /// \param[in] _point The point at which the mouse is hovering within
+ /// the scene
+ public: explicit HoverOnScene(const math::Vector2i &_point);
+
+ /// \brief Unique type for this event.
+ static const QEvent::Type kType = QEvent::Type(QEvent::MaxUser - 13);
+
+ /// \brief Get the point within the scene over which the user is
+ /// hovering.
+ /// \return The 2D point
+ public: math::Vector2i Point() const;
+
+ /// \internal
+ /// \brief Private data pointer
+ IGN_UTILS_IMPL_PTR(dataPtr)
+ };
+
  }
  }
 }

src/GuiEvents.cc

@@ -49,6 +49,12 @@ class ignition::gui::events::HoverToScene::Implementation
  public: math::Vector3d point;
 };
 
+class ignition::gui::events::HoverOnScene::Implementation
+{
+ /// \brief The 2D point over which the user is hovering.
+ public: math::Vector2i point;
+};
+
 class ignition::gui::events::LeftClickToScene::Implementation
 {
  /// \brief The 3D point that the user clicked within the scene.
@@ -170,6 +176,19 @@ math::Vector3d HoverToScene::Point() const
  return this->dataPtr->point;
 }
 
+/////////////////////////////////////////////////
+HoverOnScene::HoverOnScene(const math::Vector2i &_point)
+ : QEvent(kType), dataPtr(utils::MakeImpl<Implementation>())
+{
+ this->dataPtr->point = _point;
+}
+
+/////////////////////////////////////////////////
+math::Vector2i HoverOnScene::Point() const
+{
+ return this->dataPtr->point;
+}
+
 /////////////////////////////////////////////////
 LeftClickToScene::LeftClickToScene(const math::Vector3d &_point)
  : QEvent(kType), dataPtr(utils::MakeImpl<Implementation>())

src/GuiEvents_TEST.cc

@@ -69,6 +69,15 @@ TEST(GuiEventsTest, HoverToScene)
  EXPECT_EQ(math::Vector3d(1, 2, 3), event.Point());
 }
 
+/////////////////////////////////////////////////
+TEST(GuiEventsTest, HoverOnScene)
+{
+ events::HoverOnScene event({1, 2});
+
+ EXPECT_LT(QEvent::User, event.type());
+ EXPECT_EQ(math::Vector2i(1, 2), event.Point());
+}
+
 /////////////////////////////////////////////////
 TEST(GuiEventsTest, LeftClickToScene)
 {

src/plugins/minimal_scene/MinimalScene.cc

@@ -203,6 +203,8 @@ void IgnRenderer::BroadcastHoverPos()
 
  events::HoverToScene hoverToSceneEvent(pos);
  App()->sendEvent(App()->findChild<MainWindow *>(), &hoverToSceneEvent);
+ events::HoverOnScene hoverOnSceneEvent(this->dataPtr->mouseHoverPos);
+ App()->sendEvent(App()->findChild<MainWindow *>(), &hoverOnSceneEvent);
 }
 
 /////////////////////////////////////////////////