Partial Automation of getting Gcode placeholders

Included pre-generated files specific to Orca rather than PS provided files

Original Commit: prusa3d/PrusaSlicer@55d5921

Co-authored-by: YuSanka <yusanka@gmail.com>

src/libslic3r/GCode.cpp

@@ -2915,6 +2915,11 @@ void GCode::process_layers(
 
 std::string GCode::placeholder_parser_process(const std::string &name, const std::string &templ, unsigned int current_extruder_id, const DynamicConfig *config_override)
 {
+#if GET_CUSTOM_GCODE_PLACEHOLDERS
+    if (config_override &&
+        g_code_placeholders_map.find(name) == g_code_placeholders_map.end())
+        g_code_placeholders_map[name] = *config_override;
+#endif
 PlaceholderParserIntegration &ppi = m_placeholder_parser_integration;
     try {
         ppi.update_from_gcodewriter(m_writer);

src/libslic3r/GCode.hpp

@@ -157,6 +157,8 @@ struct LayerResult {
 };
 
 class GCode {
+#define GET_CUSTOM_GCODE_PLACEHOLDERS 1
+
 public:
     GCode() :
     	m_origin(Vec2d::Zero()),
@@ -185,6 +187,13 @@ public:
         {}
     ~GCode() = default;
 
+#if GET_CUSTOM_GCODE_PLACEHOLDERS
+    std::map<std::string, DynamicConfig> g_code_placeholders_map;
+    const std::map<std::string, DynamicConfig>& get_g_code_placeholders_map() { return g_code_placeholders_map; }
+    const DynamicConfig& get_placeholder_parser_config() const { return m_placeholder_parser_integration.parser.config(); }
+    const DynamicConfig& get_placeholder_output_config() const { return m_placeholder_parser_integration.output_config; }
+#endif
+
     // throws std::runtime_exception on error,
     // throws CanceledException through print->throw_if_canceled().
     void            do_export(Print* print, const char* path, GCodeProcessorResult* result = nullptr, ThumbnailsGeneratorCallback thumbnail_cb = nullptr);

src/libslic3r/Print.cpp

@@ -2038,6 +2038,46 @@ std::string Print::export_gcode(const std::string& path_template, GCodeProcessor
     const Vec3d origin = this->get_plate_origin();
     gcode.set_gcode_offset(origin(0), origin(1));
     gcode.do_export(this, path.c_str(), result, thumbnail_cb);
+
+#if GET_CUSTOM_GCODE_PLACEHOLDERS
+
+    const std::string dir = custom_gcodes_dir() +
+#ifdef _WIN32
+                            "\\";
+#else
+                            "/";
+#endif
+
+    auto save_placeholders = [dir](const std::string& file_name, const DynamicConfig& config) {
+        try {
+            boost::nowide::ofstream c;
+            c.open(dir + file_name, std::ios::out | std::ios::trunc);
+            c << "# " << header_slic3r_generated() << std::endl;
+            auto keys = config.keys();
+            for (const std::string& opt_key : keys) {
+                const std::string type = std::to_string(int(config.optptr(opt_key)->type()));
+                c << opt_key << " = " << type << std::endl;
+            }
+            c.close();
+        }
+        catch (const std::ofstream::failure& err) {
+            throw RuntimeError(format("The %1% cannot be loaded:\n\tReason: %2%", file_name, err.what()));
+        }
+    };
+
+    // save specific placeholders
+    const auto& gcode_placeholders = gcode.get_g_code_placeholders_map();
+    for (const auto& [gcode_name, config] : gcode_placeholders)
+        save_placeholders(gcode_name, config);
+
+    // save universal placeholders
+    save_placeholders("universal", gcode.get_placeholder_parser_config());
+
+    // save placeholders for "rw_slicing_state" slicing state
+    save_placeholders("rw_slicing_state", gcode.get_placeholder_output_config());
+
+#endif
+
     //BBS
     result->conflict_result = m_conflict_result;
     return path.c_str();

src/libslic3r/Utils.hpp

@@ -144,6 +144,11 @@ const std::string& sys_shapes_dir();
 // Return a full path to the custom shapes gallery directory.
 std::string custom_shapes_dir();
 
+// Set a path with shapes gallery files.
+void set_custom_gcodes_dir(const std::string &path);
+// Return a full path to the system shapes gallery directory.
+const std::string& custom_gcodes_dir();
+
 // Set a path with preset files.
 void set_data_dir(const std::string &path);
 // Return a full path to the GUI resource files.

src/libslic3r/utils.cpp

@@ -265,6 +265,18 @@ const std::string& sys_shapes_dir()
 	return g_sys_shapes_dir;
 }
 
+static std::string g_custom_gcodes_dir;
+
+void set_custom_gcodes_dir(const std::string &dir)
+{
+    g_custom_gcodes_dir = dir;
+}
+
+const std::string& custom_gcodes_dir()
+{
+    return g_custom_gcodes_dir;
+}
+
 // Translate function callback, to call wxWidgets translate function to convert non-localized UTF8 string to a localized one.
 Slic3r::I18N::translate_fn_type Slic3r::I18N::translate_fn = nullptr;
 static std::string g_data_dir;