Stubbed out UI_Slider class.

src/CMakeLists.txt

@@ -311,6 +311,7 @@ IF(wxWidgets_FOUND)
     ${GUI_LIBDIR}/OptionsGroup/UI_Point.cpp
     ${GUI_LIBDIR}/OptionsGroup/UI_Point3.cpp
     ${GUI_LIBDIR}/OptionsGroup/UI_Color.cpp
+    ${GUI_LIBDIR}/OptionsGroup/UI_Slider.cpp
     ${LIBDIR}/slic3r/GUI/3DScene.cpp
     )
     target_compile_features(slic3r_gui PUBLIC cxx_std_14)

src/GUI/OptionsGroup/Field.hpp

@@ -20,6 +20,7 @@
 #include "wx/sizer.h"
 #include <wx/colour.h>
 #include <wx/clrpicker.h>
+#include <wx/slider.h>
 
 namespace Slic3r { namespace GUI {
 
@@ -418,6 +419,37 @@ private:
     wxColourPickerCtrl* _picker {nullptr};
 };
 
+class UI_Slider : public UI_Sizer { 
+public:
+    UI_Slider(wxWindow* parent, Slic3r::ConfigOptionDef _opt);  
+    UI_Slider(wxWindow* parent, Slic3r::ConfigOptionDef _opt, size_t scale);  
+
+    ~UI_Slider();
+
+    void set_value(boost::any value) override;
+    std::string get_string() override;
+    double get_double() override;
+    int get_int() override;
+
+    /// Change the scale of the slider bar. Return value from get_X functions does not change.
+    void set_scale(size_t new_scale);
+    
+    wxSlider* slider() { return _slider;}
+    wxTextCtrl* textctrl() { return _textctrl;}
+    std::function<void (const std::string&, const double&)> on_change {nullptr};
+protected:
+    virtual std::string LogChannel() override { return "UI_Slider"s; }
+private:
+    void _on_change(std::string opt_id) override {
+        if (!this->disable_change_event && this->_slider->IsEnabled() && this->on_change != nullptr) {
+            this->on_change(opt_id, _slider->GetValue() / _scale);
+        }
+    }
+    wxTextCtrl* _textctrl {nullptr};
+    wxSlider* _slider {nullptr};
+    size_t _scale {10};
+};
+
 } } // Namespace Slic3r::GUI
 
 #endif // SLIC3R_FIELD_HPP

src/GUI/OptionsGroup/UI_Slider.cpp

@@ -0,0 +1,30 @@
+#include "OptionsGroup/Field.hpp"
+#include "misc_ui.hpp"
+
+namespace Slic3r { namespace GUI {
+
+UI_Slider::UI_Slider(wxWindow* parent, Slic3r::ConfigOptionDef _opt) : UI_Sizer(parent, _opt), _scale(10) {
+}
+UI_Slider::UI_Slider(wxWindow* parent, Slic3r::ConfigOptionDef _opt, size_t scale ) : UI_Sizer(parent, _opt), _scale(scale) {
+
+}
+UI_Slider::~UI_Slider() { _slider->Destroy(); _textctrl->Destroy(); }
+
+void UI_Slider::set_value(boost::any value) {
+}
+
+double UI_Slider::get_double() {
+    return 0.0;
+}
+
+int UI_Slider::get_int() {
+    return 0;
+}
+
+std::string UI_Slider::get_string() {
+    return std::string();
+}
+
+void UI_Slider::set_scale(size_t new_scale) {
+}
+} } // Namespace Slic3r::GUI