VisualBuilder: Add GSlider to the widgets toolbox.

Applications/VisualBuilder/VBWidget.cpp

@@ -12,6 +12,7 @@
 #include <LibGUI/GGroupBox.h>
 #include <LibGUI/GCheckBox.h>
 #include <LibGUI/GProgressBar.h>
+#include <LibGUI/GSlider.h>
 
 VBWidget::VBWidget(VBWidgetType type, VBForm& form)
     : m_type(type)
@@ -148,6 +149,12 @@ void VBWidget::setup_properties()
         VB_ADD_PROPERTY(GProgressBar, "value", value, set_value, int);
     }
 
+    if (m_type == VBWidgetType::GSlider) {
+        VB_ADD_PROPERTY(GSlider, "min", min, set_min, int);
+        VB_ADD_PROPERTY(GSlider, "max", max, set_max, int);
+        VB_ADD_PROPERTY(GSlider, "value", value, set_value, int);
+    }
+
     if (m_type == VBWidgetType::GTextEditor) {
         VB_ADD_PROPERTY(GTextEditor, "text", text, set_text, string);
         VB_ADD_PROPERTY(GTextEditor, "ruler_visible", is_ruler_visible, set_ruler_visible, bool);

Applications/VisualBuilder/VBWidgetRegistry.cpp

@@ -8,6 +8,7 @@
 #include <LibGUI/GCheckBox.h>
 #include <LibGUI/GScrollBar.h>
 #include <LibGUI/GGroupBox.h>
+#include <LibGUI/GSlider.h>
 
 static String to_class_name(VBWidgetType type)
 {
@@ -21,6 +22,7 @@ static String to_class_name(VBWidgetType type)
     case VBWidgetType::GCheckBox: return "GCheckBox";
     case VBWidgetType::GScrollBar: return "GScrollBar";
     case VBWidgetType::GGroupBox: return "GGroupBox";
+    case VBWidgetType::GSlider: return "GSlider";
     default: ASSERT_NOT_REACHED();
     }
 }
@@ -63,6 +65,12 @@ static GWidget* build_gwidget(VBWidgetType type, GWidget* parent)
         bar->set_value(50);
         return bar;
     }
+    case VBWidgetType::GSlider: {
+        auto* slider = new GSlider(parent);
+        slider->set_range(0, 100);
+        slider->set_value(50);
+        return slider;
+    }
     case VBWidgetType::GCheckBox: {
         auto* box = new GCheckBox(parent);
         box->set_caption("checkbox_1");

Applications/VisualBuilder/VBWidgetType.h

@@ -11,5 +11,6 @@ enum class VBWidgetType {
     GCheckBox,
     GScrollBar,
     GGroupBox,
+    GSlider,
     __Count
 };

Applications/VisualBuilder/main.cpp

@@ -112,6 +112,13 @@ GWindow* make_toolbox_window()
         if (auto* form = VBForm::current())
             form->insert_widget(VBWidgetType::GProgressBar);
     };
+    auto* slider_button = new GButton(widget);
+    slider_button->set_tooltip("GSlider");
+    slider_button->set_icon(GraphicsBitmap::load_from_file("/res/icons/vbwidgets/slider.png"));
+    slider_button->on_click = [] (GButton&) {
+        if (auto* form = VBForm::current())
+            form->insert_widget(VBWidgetType::GSlider);
+    };
     auto* checkbox_button = new GButton(widget);
     checkbox_button->set_tooltip("GCheckBox");
     checkbox_button->set_icon(GraphicsBitmap::load_from_file("/res/icons/vbwidgets/checkbox.png"));

LibGUI/GSlider.h

@@ -14,6 +14,9 @@ public:
     void set_range(int min, int max);
     void set_value(int);
 
+    void set_min(int min) { set_range(min, max()); }
+    void set_max(int max) { set_range(min(), max); }
+
     int track_height() const { return 2; }
     int knob_width() const { return 8; }
     int knob_height() const { return 20; }