Continued implementation for UI_Slider

Added enable/disable methods and set_range()
text control should update as well.
Added tests to build.

src/CMakeLists.txt

@@ -193,6 +193,7 @@ set(UI_TEST_SOURCES
     ${GUI_TESTDIR}/test_field_point.cpp
     ${GUI_TESTDIR}/test_field_point3.cpp
     ${GUI_TESTDIR}/test_field_colorpicker.cpp
+    ${GUI_TESTDIR}/test_field_slider.cpp
     ${GUI_TESTDIR}/test_misc_ui.cpp
 )
 

src/GUI/OptionsGroup/Field.hpp

@@ -421,8 +421,7 @@ private:
 
 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(wxWindow* parent, Slic3r::ConfigOptionDef _opt, size_t scale = 10);  
 
     ~UI_Slider();
 
@@ -431,11 +430,21 @@ public:
     double get_double() override;
     int get_int() override;
 
+    void enable() override;
+    void disable() override;
+
+    /// change the min/max of the built-in slider
+    template <typename T> void set_range(T min, T max);
+
     /// Change the scale of the slider bar. Return value from get_X functions does not change.
     void set_scale(size_t new_scale);
     
+    /// Returns pointer to owned wxSlider.
     wxSlider* slider() { return _slider;}
+    /// Returns pointer to owned wxTextCtrl.
     wxTextCtrl* textctrl() { return _textctrl;}
+
+    /// Registered on_change callback.
     std::function<void (const std::string&, const double&)> on_change {nullptr};
 protected:
     virtual std::string LogChannel() override { return "UI_Slider"s; }
@@ -445,6 +454,7 @@ private:
             this->on_change(opt_id, _slider->GetValue() / _scale);
         }
     }
+    void _update_textctrl();
     wxTextCtrl* _textctrl {nullptr};
     wxSlider* _slider {nullptr};
     size_t _scale {10};

src/GUI/OptionsGroup/UI_Slider.cpp

@@ -3,28 +3,98 @@
 
 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(wxWindow* parent, Slic3r::ConfigOptionDef _opt, size_t scale) : UI_Sizer(parent, _opt), _scale(scale) {
+    double default_value {0.0};
+
+    sizer = new wxBoxSizer(wxHORIZONTAL);
+    _slider = new wxSlider(parent, wxID_ANY, 
+                           (default_value < _opt.min ? _opt.min : default_value) * this->_scale,
+                           (_opt.min > _opt.max || _opt.min == INT_MIN ? 0 : _opt.min) * this->_scale,
+                           (_opt.max <= _opt.min || _opt.max == INT_MAX ? 100 : _opt.max) * this->_scale,
+                           wxDefaultPosition,
+                           wxSize(_opt.width, _opt.height));
+
+    _textctrl = new wxTextCtrl(parent, wxID_ANY, 
+                               static_cast<double>(_slider->GetValue()) / this->_scale, 
+                               wxDefaultPosition,
+                               wxSize(50, -1));
+
+
+    sizer->Add(_slider, 1, wxALIGN_CENTER_VERTICAL, 0);
+    sizer->Add(_textctrl, 0, wxALIGN_CENTER_VERTICAL, 0);
+
+    _textctrl->Bind(wxEVT_TEXT_ENTER, [this](wxCommandEvent& e) { this->_on_change(""); e.Skip(); });
+    _textctrl->Bind(wxEVT_KILL_FOCUS, [this](wxFocusEvent& e) { if (this->on_kill_focus != nullptr) {this->on_kill_focus(""); this->_on_change("");} e.Skip(); });
+
+    _slider->Bind(wxEVT_SLIDER, [this](wxCommandEvent& e) { this->_on_change(""); e.Skip(); });
+
+
 
 }
 UI_Slider::~UI_Slider() { _slider->Destroy(); _textctrl->Destroy(); }
 
 void UI_Slider::set_value(boost::any value) {
+    this->disable_change_event = true;
+    if (value.type() == typeid(int)) {
+        this->_slider->SetValue(boost::any_cast<int>(value) * this->_scale);
+    } else if (value.type() == typeid(double)) {
+        this->_slider->SetValue(boost::any_cast<double>(value) * this->_scale);
+    } else if (value.type() == typeid(float)) {
+        this->_slider->SetValue(boost::any_cast<float>(value) * this->_scale);
+    } else if (value.type() == typeid(std::string)) {
+        std::string _val = boost::any_cast<std::string>(value);
+        try {
+            this->_slider->SetValue(std::stod(_val) * this->_scale);
+        } catch (std::invalid_argument &e) {
+            Slic3r::Log::error(this->LogChannel()) << "Conversion to numeric from string failed.\n";
+        }
+    } else if (value.type() == typeid(wxString)) {
+        std::string _val = boost::any_cast<wxString>(value).ToStdString();
+        try {
+            this->_slider->SetValue(std::stod(_val) * this->_scale);
+        } catch (std::invalid_argument &e) {
+            Slic3r::Log::error(this->LogChannel()) << "Conversion to numeric from string failed.\n";
+        }
+    } else {
+        Slic3r::Log::warn(this->LogChannel(), LOG_WSTRING("Type " << value.type().name() << " is not handled in set_value."));
+    }
+    this->_update_textctrl();
+    this->disable_change_event = false;
 }
 
 double UI_Slider::get_double() {
-    return 0.0;
+    return static_cast<double>(this->_slider->GetValue()) / this->_scale;
 }
 
 int UI_Slider::get_int() {
-    return 0;
+    return static_cast<int>(this->_slider->GetValue()) / this->_scale;
 }
 
 std::string UI_Slider::get_string() {
-    return std::string();
+    return trim_zeroes(std::to_string(static_cast<double>(this->_slider->GetValue()) / this->_scale));
 }
 
 void UI_Slider::set_scale(size_t new_scale) {
+    this->disable_change_event = true;
+    auto current_value {this->get_double()};
+
+    this->_slider->SetRange(
+            this->_slider->GetMin() / this->_scale * new_scale, 
+            this->_slider->GetMax() / this->_scale * new_scale);
+    this->_scale = new_scale;
+    this->set_value(current_value);
+
+    this->disable_change_event = false;
 }
+
+void UI_Slider::_update_textctrl() {
+    this->_textctrl->ChangeValue(this->get_string());
+    this->_textctrl->SetInsertionPointEnd();
+}
+
+template <typename T>
+void UI_Slider::set_range(T min, T max) { 
+    this->_slider->SetRange(static_cast<int>(min * static_cast<int>(self->_scale)), static_cast<int>(max * static_cast<int>(self->_scale)));
+}
+
 } } // Namespace Slic3r::GUI

src/test/GUI/test_field_slider.cpp

@@ -77,6 +77,34 @@ SCENARIO( "UI_Slider: Defaults, Min/max handling, accessors.") {
                 REQUIRE(test_field.textctrl()->GetValue() == "0.0");
             }
         }
+        WHEN("disable() is called") {
+            test_field.slider()->Enable();
+            test_field.textctrl()->Enable();
+            test_field.textctrl()->SetEditable(true);
+            
+            test_field.disable();
+            THEN("Internal slider is disabled.") {
+                REQUIRE(test_field.slider()->IsEnabled() == false);
+            }
+            THEN("Internal textctrl is disabled.") {
+                REQUIRE(test_field.textctrl()->IsEnabled() == false);
+                REQUIRE(test_field.textctrl()->IsEditable() == false);
+            }
+        }
+        WHEN("enable() is called") {
+            test_field.slider()->Disable();
+            test_field.textctrl()->Disable();
+            test_field.textctrl()->SetEditable(false);
+
+            test_field.enable();
+            THEN("Internal slider is enabled.") {
+                REQUIRE(test_field.slider()->IsEnabled() == true);
+            }
+            THEN("Internal textctrl is enabled.") {
+                REQUIRE(test_field.textctrl()->IsEnabled() == true);
+                REQUIRE(test_field.textctrl()->IsEditable() == true);
+            }
+        }
     }
 
     GIVEN("A UI Slider with scale of 1") {
@@ -98,6 +126,7 @@ SCENARIO( "UI_Slider: Defaults, Min/max handling, accessors.") {
         }
     }
 }
+
 SCENARIO( "UI_Slider: Event handlers") {
     wxTestableFrame* old = dynamic_cast<wxTestableFrame*>(wxTheApp->GetTopWindow()); 
     old->Destroy();