From 8e001972a9efaf23e4ee5129d6a2c82a5e438cd2 Mon Sep 17 00:00:00 2001
From: Enrico Turri <enricoturri@seznam.cz>
Date: Fri, 4 Jan 2019 12:56:48 +0100
Subject: [PATCH] Added print bed models for mk2 and mk3 printers to 3D scene

---
 resources/models/mk2_bed.stl   | Bin 0 -> 2484 bytes
 resources/models/mk3_bed.stl   | Bin 0 -> 59984 bytes
 src/libslic3r/Technologies.hpp |   4 +-
 src/slic3r/GUI/3DScene.cpp     |  82 +++++++++++++++++++++++++++++----
 src/slic3r/GUI/3DScene.hpp     |  27 +++++++++++
 src/slic3r/GUI/GLCanvas3D.cpp  |  63 ++++++++++++++++++++++++-
 src/slic3r/GUI/GLCanvas3D.hpp  |  11 +++++
 7 files changed, 176 insertions(+), 11 deletions(-)
 create mode 100644 resources/models/mk2_bed.stl
 create mode 100644 resources/models/mk3_bed.stl

diff --git a/resources/models/mk2_bed.stl b/resources/models/mk2_bed.stl
new file mode 100644
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diff --git a/resources/models/mk3_bed.stl b/resources/models/mk3_bed.stl
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diff --git a/src/libslic3r/Technologies.hpp b/src/libslic3r/Technologies.hpp
index c32fe3e8d..dc6a2041c 100644
--- a/src/libslic3r/Technologies.hpp
+++ b/src/libslic3r/Technologies.hpp
@@ -42,8 +42,10 @@
 //====================
 #define ENABLE_1_42_0_ALPHA2 1
 
+// Improves navigation between sidebar fields
 #define ENABLE_IMPROVED_SIDEBAR_OBJECTS_MANIPULATION (1 && ENABLE_1_42_0_ALPHA2)
-
+// Adds print bed models to 3D scene
+#define ENABLE_PRINT_BED_MODELS (1 && ENABLE_1_42_0_ALPHA2)
 #endif // _technologies_h_
 
 
diff --git a/src/slic3r/GUI/3DScene.cpp b/src/slic3r/GUI/3DScene.cpp
index 42b025093..d44789b7a 100644
--- a/src/slic3r/GUI/3DScene.cpp
+++ b/src/slic3r/GUI/3DScene.cpp
@@ -11,6 +11,9 @@
 #include "libslic3r/Slicing.hpp"
 #include "libslic3r/GCode/Analyzer.hpp"
 #include "slic3r/GUI/PresetBundle.hpp"
+#if ENABLE_PRINT_BED_MODELS
+#include "libslic3r/Format/STL.hpp"
+#endif // ENABLE_PRINT_BED_MODELS
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -20,6 +23,11 @@
 
 #include <boost/log/trivial.hpp>
 
+#if ENABLE_PRINT_BED_MODELS
+#include <boost/filesystem/operations.hpp>
+#include <boost/algorithm/string.hpp>
+#endif // ENABLE_PRINT_BED_MODELS
+
 #include <tbb/parallel_for.h>
 #include <tbb/spin_mutex.h>
 
@@ -249,11 +257,7 @@ void GLVolume::set_render_color(float r, float g, float b, float a)
 
 void GLVolume::set_render_color(const float* rgba, unsigned int size)
 {
-    size = std::min((unsigned int)4, size);
-    for (unsigned int i = 0; i < size; ++i)
-    {
-        render_color[i] = rgba[i];
-    }
+    ::memcpy((void*)render_color, (const void*)rgba, (size_t)(std::min((unsigned int)4, size) * sizeof(float)));
 }
 
 void GLVolume::set_render_color()
@@ -1790,17 +1794,27 @@ GUI::GLCanvas3DManager _3DScene::s_canvas_mgr;
 #if ENABLE_SIDEBAR_VISUAL_HINTS
 GLModel::GLModel()
     : m_useVBOs(false)
+#if ENABLE_PRINT_BED_MODELS
+    , m_filename("")
+#endif // ENABLE_PRINT_BED_MODELS
 {
     m_volume.shader_outside_printer_detection_enabled = false;
 }
 
 GLModel::~GLModel()
 {
+#if ENABLE_PRINT_BED_MODELS
+    reset();
+#else
     m_volume.release_geometry();
+#endif // ENABLE_PRINT_BED_MODELS
 }
 
 void GLModel::set_color(const float* color, unsigned int size)
 {
+#if ENABLE_PRINT_BED_MODELS
+    ::memcpy((void*)m_volume.color, (const void*)color, (size_t)(std::min((unsigned int)4, size) * sizeof(float)));
+#endif // ENABLE_PRINT_BED_MODELS
     m_volume.set_render_color(color, size);
 }
 
@@ -1834,6 +1848,14 @@ void GLModel::set_scale(const Vec3d& scale)
     m_volume.set_volume_scaling_factor(scale);
 }
 
+#if ENABLE_PRINT_BED_MODELS
+void GLModel::reset()
+{
+    m_volume.release_geometry();
+    m_filename = "";
+}
+#endif // ENABLE_PRINT_BED_MODELS
+
 void GLModel::render() const
 {
     if (m_useVBOs)
@@ -1854,9 +1876,7 @@ void GLModel::render_VBOs() const
     GLint current_program_id;
     ::glGetIntegerv(GL_CURRENT_PROGRAM, &current_program_id);
     GLint color_id = (current_program_id > 0) ? glGetUniformLocation(current_program_id, "uniform_color") : -1;
-    GLint print_box_detection_id = (current_program_id > 0) ? glGetUniformLocation(current_program_id, "print_box.volume_detection") : -1;
-
-    m_volume.render_VBOs(color_id, print_box_detection_id, -1);
+    m_volume.render_VBOs(color_id, -1, -1);
 
     ::glBindBuffer(GL_ARRAY_BUFFER, 0);
     ::glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
@@ -2066,11 +2086,57 @@ bool GLCurvedArrow::on_init(bool useVBOs)
     else
         m_volume.indexed_vertex_array.load_mesh_flat_shading(TriangleMesh(vertices, triangles));
 
+    m_volume.bounding_box = m_volume.indexed_vertex_array.bounding_box();
     m_volume.finalize_geometry(m_useVBOs);
     return true;
 }
 #endif // ENABLE_SIDEBAR_VISUAL_HINTS
 
+#if ENABLE_PRINT_BED_MODELS
+bool GLBed::on_init_from_file(const std::string& filename, bool useVBOs)
+{
+    reset();
+
+    if (!boost::filesystem::exists(filename))
+        return false;
+
+    if (!boost::algorithm::iends_with(filename, ".stl"))
+        return false;
+
+    Model model;
+    try
+    {
+        model = Model::read_from_file(filename);
+    }
+    catch (std::exception &e)
+    {
+        return false;
+    }
+
+    m_filename = filename;
+    m_useVBOs = useVBOs;
+
+    ModelObject* model_object = model.objects.front();
+    model_object->center_around_origin();
+
+    TriangleMesh mesh = model.mesh();
+    mesh.repair();
+
+    if (m_useVBOs)
+        m_volume.indexed_vertex_array.load_mesh_full_shading(mesh);
+    else
+        m_volume.indexed_vertex_array.load_mesh_flat_shading(mesh);
+
+    float color[4] = { 0.235f, 0.235, 0.235f, 1.0f };
+    set_color(color, 4);
+
+    m_volume.bounding_box = m_volume.indexed_vertex_array.bounding_box();
+    m_volume.finalize_geometry(m_useVBOs);
+
+    return true;
+}
+#endif // ENABLE_PRINT_BED_MODELS
+
 std::string _3DScene::get_gl_info(bool format_as_html, bool extensions)
 {
     return s_canvas_mgr.get_gl_info(format_as_html, extensions);
diff --git a/src/slic3r/GUI/3DScene.hpp b/src/slic3r/GUI/3DScene.hpp
index 38996dc04..b7b1af73d 100644
--- a/src/slic3r/GUI/3DScene.hpp
+++ b/src/slic3r/GUI/3DScene.hpp
@@ -569,13 +569,20 @@ class GLModel
 protected:
     GLVolume m_volume;
     bool m_useVBOs;
+#if ENABLE_PRINT_BED_MODELS
+    std::string m_filename;
+#endif // ENABLE_PRINT_BED_MODELS
 
 public:
     GLModel();
     virtual ~GLModel();
 
     bool init(bool useVBOs) { return on_init(useVBOs); }
+#if ENABLE_PRINT_BED_MODELS
+    bool init_from_file(const std::string& filename, bool useVBOs) { return on_init_from_file(filename, useVBOs); }
 
+    void center_around(const Vec3d& center) { m_volume.set_volume_offset(center - m_volume.bounding_box.center()); }
+#endif // ENABLE_PRINT_BED_MODELS
     void set_color(const float* color, unsigned int size);
 
     const Vec3d& get_offset() const;
@@ -585,10 +592,22 @@ public:
     const Vec3d& get_scale() const;
     void set_scale(const Vec3d& scale);
 
+#if ENABLE_PRINT_BED_MODELS
+    const std::string& get_filename() const { return m_filename; }
+    const BoundingBoxf3& get_bounding_box() const { return m_volume.bounding_box; }
+
+    void reset();
+#endif // ENABLE_PRINT_BED_MODELS
+
     void render() const; 
 
 protected:
+#if ENABLE_PRINT_BED_MODELS
+    virtual bool on_init(bool useVBOs) { return false; }
+    virtual bool on_init_from_file(const std::string& filename, bool useVBOs) { return false; }
+#else
     virtual bool on_init(bool useVBOs) = 0;
+#endif // ENABLE_PRINT_BED_MODELS
 
 private:
     void render_VBOs() const;
@@ -613,6 +632,14 @@ protected:
 };
 #endif // ENABLE_SIDEBAR_VISUAL_HINTS
 
+#if ENABLE_PRINT_BED_MODELS
+class GLBed : public GLModel
+{
+protected:
+    virtual bool on_init_from_file(const std::string& filename, bool useVBOs);
+};
+#endif // ENABLE_PRINT_BED_MODELS
+
 class _3DScene
 {
     static GUI::GLCanvas3DManager s_canvas_mgr;
diff --git a/src/slic3r/GUI/GLCanvas3D.cpp b/src/slic3r/GUI/GLCanvas3D.cpp
index 5fa09d334..91b4a2855 100644
--- a/src/slic3r/GUI/GLCanvas3D.cpp
+++ b/src/slic3r/GUI/GLCanvas3D.cpp
@@ -386,6 +386,35 @@ Point GLCanvas3D::Bed::point_projection(const Point& point) const
     return m_polygon.point_projection(point);
 }
 
+#if ENABLE_PRINT_BED_MODELS
+void GLCanvas3D::Bed::render(float theta, bool useVBOs) const
+{
+    switch (m_type)
+    {
+    case MK2:
+    {
+        _render_prusa("mk2", theta, useVBOs);
+        break;
+    }
+    case MK3:
+    {
+        _render_prusa("mk3", theta, useVBOs);
+        break;
+    }
+    case SL1:
+    {
+        _render_prusa("sl1", theta, useVBOs);
+        break;
+    }
+    default:
+    case Custom:
+    {
+        _render_custom();
+        break;
+    }
+    }
+}
+#else
 void GLCanvas3D::Bed::render(float theta) const
 {
     switch (m_type)
@@ -413,6 +442,7 @@ void GLCanvas3D::Bed::render(float theta) const
     }
     }
 }
+#endif // ENABLE_PRINT_BED_MODELS
 
 void GLCanvas3D::Bed::_calc_bounding_box()
 {
@@ -504,9 +534,18 @@ GLCanvas3D::Bed::EType GLCanvas3D::Bed::_detect_type() const
     return type;
 }
 
+#if ENABLE_PRINT_BED_MODELS
+void GLCanvas3D::Bed::_render_prusa(const std::string &key, float theta, bool useVBOs) const
+#else
 void GLCanvas3D::Bed::_render_prusa(const std::string &key, float theta) const
+#endif // ENABLE_PRINT_BED_MODELS
 {
-    std::string filename = resources_dir() + "/icons/bed/" + key + "_top.png";
+    std::string tex_path = resources_dir() + "/icons/bed/" + key;
+#if ENABLE_PRINT_BED_MODELS
+    std::string model_path = resources_dir() + "/models/" + key;
+#endif // ENABLE_PRINT_BED_MODELS
+
+    std::string filename = tex_path + "_top.png";
     if ((m_top_texture.get_id() == 0) || (m_top_texture.get_source() != filename))
     {
         if (!m_top_texture.load_from_file(filename, true))
@@ -516,7 +555,7 @@ void GLCanvas3D::Bed::_render_prusa(const std::string &key, float theta) const
         }
     }
 
-    filename = resources_dir() + "/icons/bed/" + key + "_bottom.png";
+    filename = tex_path + "_bottom.png";
     if ((m_bottom_texture.get_id() == 0) || (m_bottom_texture.get_source() != filename))
     {
         if (!m_bottom_texture.load_from_file(filename, true))
@@ -526,6 +565,22 @@ void GLCanvas3D::Bed::_render_prusa(const std::string &key, float theta) const
         }
     }
 
+#if ENABLE_PRINT_BED_MODELS
+    if (theta <= 90.0f)
+    {
+        filename = model_path + "_bed.stl";
+        if ((m_model.get_filename() != filename) && m_model.init_from_file(filename, useVBOs))
+            m_model.center_around(m_bounding_box.center() - Vec3d(0.0, 0.0, 1.0 + 0.5 * m_model.get_bounding_box().size()(2)));
+
+        if (!m_model.get_filename().empty())
+        {
+            ::glEnable(GL_LIGHTING);
+            m_model.render();
+            ::glDisable(GL_LIGHTING);
+        }
+    }
+#endif // ENABLE_PRINT_BED_MODELS
+
     unsigned int triangles_vcount = m_triangles.get_vertices_count();
     if (triangles_vcount > 0)
     {
@@ -6087,7 +6142,11 @@ void GLCanvas3D::_render_background() const
 
 void GLCanvas3D::_render_bed(float theta) const
 {
+#if ENABLE_PRINT_BED_MODELS
+    m_bed.render(theta, m_use_VBOs);
+#else
     m_bed.render(theta);
+#endif // ENABLE_PRINT_BED_MODELS
 }
 
 void GLCanvas3D::_render_axes() const
diff --git a/src/slic3r/GUI/GLCanvas3D.hpp b/src/slic3r/GUI/GLCanvas3D.hpp
index 73aa4bd02..c2f2074c1 100644
--- a/src/slic3r/GUI/GLCanvas3D.hpp
+++ b/src/slic3r/GUI/GLCanvas3D.hpp
@@ -201,6 +201,9 @@ class GLCanvas3D
         GeometryBuffer m_gridlines;
         mutable GLTexture m_top_texture;
         mutable GLTexture m_bottom_texture;
+#if ENABLE_PRINT_BED_MODELS
+        mutable GLBed m_model;
+#endif // ENABLE_PRINT_BED_MODELS
 
     public:
         Bed();
@@ -216,14 +219,22 @@ class GLCanvas3D
         bool contains(const Point& point) const;
         Point point_projection(const Point& point) const;
 
+#if ENABLE_PRINT_BED_MODELS
+        void render(float theta, bool useVBOs) const;
+#else
         void render(float theta) const;
+#endif // ENABLE_PRINT_BED_MODELS
 
     private:
         void _calc_bounding_box();
         void _calc_triangles(const ExPolygon& poly);
         void _calc_gridlines(const ExPolygon& poly, const BoundingBox& bed_bbox);
         EType _detect_type() const;
+#if ENABLE_PRINT_BED_MODELS
+        void _render_prusa(const std::string &key, float theta, bool useVBOs) const;
+#else
         void _render_prusa(const std::string &key, float theta) const;
+#endif // ENABLE_PRINT_BED_MODELS
         void _render_custom() const;
         static bool _are_equal(const Pointfs& bed_1, const Pointfs& bed_2);
     };