From 0a7dae6df6b3a0876f596574e7d20469de186819 Mon Sep 17 00:00:00 2001
From: enricoturri1966 <enricoturri@seznam.cz>
Date: Mon, 13 Jun 2022 14:54:52 +0200
Subject: [PATCH] Tech ENABLE_RAYCAST_PICKING - Raytraced picking of Cut Gizmo

---
 src/slic3r/GUI/Gizmos/GLGizmoCut.cpp   | 17 ++++++++++++++---
 src/slic3r/GUI/Gizmos/GLGizmoCut.hpp   |  7 +++++--
 src/slic3r/GUI/Gizmos/GLGizmoScale.cpp |  4 +---
 3 files changed, 20 insertions(+), 8 deletions(-)

diff --git a/src/slic3r/GUI/Gizmos/GLGizmoCut.cpp b/src/slic3r/GUI/Gizmos/GLGizmoCut.cpp
index 9eebd583e9..96259792b3 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoCut.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoCut.cpp
@@ -269,13 +269,24 @@ void GLGizmoCut::on_render()
 #endif // !ENABLE_GL_CORE_PROFILE
 }
 
-#if !ENABLE_RAYCAST_PICKING
-    void GLGizmoCut::on_render_for_picking()
+#if ENABLE_RAYCAST_PICKING
+void GLGizmoCut::on_register_raycasters_for_picking()
+{
+    // the gizmo grabbers are rendered on top of the scene, so the raytraced picker should take it into account
+    m_parent.set_raycaster_gizmos_on_top(true);
+}
+
+void GLGizmoCut::on_unregister_raycasters_for_picking()
+{
+    m_parent.set_raycaster_gizmos_on_top(false);
+}
+#else
+void GLGizmoCut::on_render_for_picking()
 {
     glsafe(::glDisable(GL_DEPTH_TEST));
     render_grabbers_for_picking(m_parent.get_selection().get_bounding_box());
 }
-#endif // !ENABLE_RAYCAST_PICKING
+#endif // ENABLE_RAYCAST_PICKING
 
 void GLGizmoCut::on_render_input_window(float x, float y, float bottom_limit)
 {
diff --git a/src/slic3r/GUI/Gizmos/GLGizmoCut.hpp b/src/slic3r/GUI/Gizmos/GLGizmoCut.hpp
index 6283d9e310..ee3bc78e9a 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoCut.hpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoCut.hpp
@@ -68,9 +68,12 @@ protected:
     virtual void on_start_dragging() override;
     virtual void on_dragging(const UpdateData& data) override;
     virtual void on_render() override;
-#if !ENABLE_RAYCAST_PICKING
+#if ENABLE_RAYCAST_PICKING
+    virtual void on_register_raycasters_for_picking() override;
+    virtual void on_unregister_raycasters_for_picking() override;
+#else
     virtual void on_render_for_picking() override;
-#endif // !ENABLE_RAYCAST_PICKING
+#endif // ENABLE_RAYCAST_PICKING
     virtual void on_render_input_window(float x, float y, float bottom_limit) override;
 
 private:
diff --git a/src/slic3r/GUI/Gizmos/GLGizmoScale.cpp b/src/slic3r/GUI/Gizmos/GLGizmoScale.cpp
index 775aa4ceda..0f68cb7619 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoScale.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoScale.cpp
@@ -654,9 +654,7 @@ void GLGizmoScale3D::on_unregister_raycasters_for_picking()
 {
     m_parent.set_raycaster_gizmos_on_top(false);
 }
-#endif // ENABLE_RAYCAST_PICKING
-
-#if !ENABLE_RAYCAST_PICKING
+#else
 void GLGizmoScale3D::on_render_for_picking()
 {
     glsafe(::glDisable(GL_DEPTH_TEST));