1 files changed, 92 insertions, 0 deletions
diff --git a/src/libslic3r/GCodeWriter.hpp b/src/libslic3r/GCodeWriter.hpp
new file mode 100644
index 000000000..664b0e3a1
--- /dev/null
+++ b/src/libslic3r/GCodeWriter.hpp
@@ -0,0 +1,92 @@
+#ifndef slic3r_GCodeWriter_hpp_
+#define slic3r_GCodeWriter_hpp_
+
+#include "libslic3r.h"
+#include <string>
+#include "Extruder.hpp"
+#include "Point.hpp"
+#include "PrintConfig.hpp"
+#include "GCode/CoolingBuffer.hpp"
+
+namespace Slic3r {
+
+class GCodeWriter {
+public:
+    GCodeConfig config;
+    bool multiple_extruders;
+    
+    GCodeWriter() : 
+        multiple_extruders(false), m_extrusion_axis("E"), m_extruder(nullptr),
+        m_single_extruder_multi_material(false),
+        m_last_acceleration(0), m_max_acceleration(0), m_last_fan_speed(0), 
+        m_last_bed_temperature(0), m_last_bed_temperature_reached(true), 
+        m_lifted(0)
+        {}
+    Extruder*            extruder()             { return m_extruder; }
+    const Extruder*      extruder()     const   { return m_extruder; }
+
+    std::string          extrusion_axis() const { return m_extrusion_axis; }
+    void                 apply_print_config(const PrintConfig &print_config);
+    // Extruders are expected to be sorted in an increasing order.
+    void                 set_extruders(const std::vector<unsigned int> &extruder_ids);
+    const std::vector<Extruder>& extruders() const { return m_extruders; }
+    std::vector<unsigned int> extruder_ids() const { 
+        std::vector<unsigned int> out; 
+        out.reserve(m_extruders.size()); 
+        for (const Extruder &e : m_extruders) 
+            out.push_back(e.id()); 
+        return out;
+    }
+    std::string preamble();
+    std::string postamble() const;
+    std::string set_temperature(unsigned int temperature, bool wait = false, int tool = -1) const;
+    std::string set_bed_temperature(unsigned int temperature, bool wait = false);
+    std::string set_fan(unsigned int speed, bool dont_save = false);
+    std::string set_acceleration(unsigned int acceleration);
+    std::string reset_e(bool force = false);
+    std::string update_progress(unsigned int num, unsigned int tot, bool allow_100 = false) const;
+    // return false if this extruder was already selected
+    bool        need_toolchange(unsigned int extruder_id) const 
+        { return m_extruder == nullptr || m_extruder->id() != extruder_id; }
+    std::string set_extruder(unsigned int extruder_id)
+        { return this->need_toolchange(extruder_id) ? this->toolchange(extruder_id) : ""; }
+    // Prefix of the toolchange G-code line, to be used by the CoolingBuffer to separate sections of the G-code
+    // printed with the same extruder.
+    std::string toolchange_prefix() const;
+    std::string toolchange(unsigned int extruder_id);
+    std::string set_speed(double F, const std::string &comment = std::string(), const std::string &cooling_marker = std::string()) const;
+    std::string travel_to_xy(const Vec2d &point, const std::string &comment = std::string());
+    std::string travel_to_xyz(const Vec3d &point, const std::string &comment = std::string());
+    std::string travel_to_z(double z, const std::string &comment = std::string());
+    bool        will_move_z(double z) const;
+    std::string extrude_to_xy(const Vec2d &point, double dE, const std::string &comment = std::string());
+    std::string extrude_to_xyz(const Vec3d &point, double dE, const std::string &comment = std::string());
+    std::string retract(bool before_wipe = false);
+    std::string retract_for_toolchange(bool before_wipe = false);
+    std::string unretract();
+    std::string lift();
+    std::string unlift();
+    Vec3d       get_position() const { return m_pos; }
+
+private:
+    std::vector<Extruder>    m_extruders;
+    std::string     m_extrusion_axis;
+    bool            m_single_extruder_multi_material;
+    Extruder*       m_extruder;
+    unsigned int    m_last_acceleration;
+    // Limit for setting the acceleration, to respect the machine limits set for the Marlin firmware.
+    // If set to zero, the limit is not in action.
+    unsigned int    m_max_acceleration;
+    unsigned int    m_last_fan_speed;
+    unsigned int    m_last_bed_temperature;
+    bool            m_last_bed_temperature_reached;
+    double          m_lifted;
+    Vec3d           m_pos = Vec3d::Zero();
+
+    std::string _travel_to_z(double z, const std::string &comment);
+    std::string _retract(double length, double restart_extra, const std::string &comment);
+};
+
+} /* namespace Slic3r */
+
+#endif /* slic3r_GCodeWriter_hpp_ */