DevTools: Remove VisualBuilder and FormCompiler

This functionality is being moved to HackStudio so let's not confuse
people by keeping the old stuff around.

15 files changed, 0 insertions, 1885 deletions

diff --git a/DevTools/VisualBuilder/CMakeLists.txt b/DevTools/VisualBuilder/CMakeLists.txt
deleted file mode 100644
index 78bedff4f1..0000000000
--- a/DevTools/VisualBuilder/CMakeLists.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-set(SOURCES
-    main.cpp
-    VBForm.cpp
-    VBPropertiesWindow.cpp
-    VBProperty.cpp
-    VBWidget.cpp
-    VBWidgetPropertyModel.cpp
-    VBWidgetRegistry.cpp
-)
-
-serenity_bin(VisualBuilder)
-target_link_libraries(VisualBuilder LibGUI)
diff --git a/DevTools/VisualBuilder/VBForm.cpp b/DevTools/VisualBuilder/VBForm.cpp
deleted file mode 100644
index 60b40caf02..0000000000
--- a/DevTools/VisualBuilder/VBForm.cpp
+++ /dev/null
@@ -1,527 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- *    list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "VBForm.h"
-#include "VBProperty.h"
-#include "VBWidget.h"
-#include "VBWidgetRegistry.h"
-#include <AK/JsonArray.h>
-#include <AK/JsonObject.h>
-#include <AK/StringBuilder.h>
-#include <LibCore/File.h>
-#include <LibGUI/Action.h>
-#include <LibGUI/BoxLayout.h>
-#include <LibGUI/Menu.h>
-#include <LibGUI/MessageBox.h>
-#include <LibGUI/Painter.h>
-
-static VBForm* s_current;
-VBForm* VBForm::current()
-{
-    return s_current;
-}
-
-VBForm::VBForm(const String& name)
-    : m_name(name)
-{
-    s_current = this;
-    set_fill_with_background_color(true);
-    set_greedy_for_hits(true);
-
-    m_context_menu = GUI::Menu::construct();
-    m_context_menu->add_action(GUI::CommonActions::make_move_to_front_action([this](auto&) {
-        if (auto* widget = single_selected_widget())
-            widget->gwidget()->move_to_front();
-    }));
-    m_context_menu->add_action(GUI::CommonActions::make_move_to_back_action([this](auto&) {
-        if (auto* widget = single_selected_widget())
-            widget->gwidget()->move_to_back();
-    }));
-    m_context_menu->add_separator();
-    m_context_menu->add_action(GUI::Action::create("Lay out horizontally", Gfx::Bitmap::load_from_file("/res/icons/16x16/layout-horizontally.png"), [this](auto&) {
-        if (auto* widget = single_selected_widget()) {
-            dbg() << "Giving " << *widget->gwidget() << " a horizontal box layout";
-            widget->gwidget()->set_layout<GUI::HorizontalBoxLayout>();
-        }
-    }));
-    m_context_menu->add_action(GUI::Action::create("Lay out vertically", Gfx::Bitmap::load_from_file("/res/icons/16x16/layout-vertically.png"), [this](auto&) {
-        if (auto* widget = single_selected_widget()) {
-            dbg() << "Giving " << *widget->gwidget() << " a vertical box layout";
-            widget->gwidget()->set_layout<GUI::VerticalBoxLayout>();
-        }
-    }));
-    m_context_menu->add_separator();
-    m_context_menu->add_action(GUI::CommonActions::make_delete_action([this](auto&) {
-        delete_selected_widgets();
-    }));
-}
-
-void VBForm::context_menu_event(GUI::ContextMenuEvent& event)
-{
-    m_context_menu->popup(event.screen_position());
-}
-
-void VBForm::insert_widget(VBWidgetType type)
-{
-    auto* insertion_parent = single_selected_widget();
-    auto widget = VBWidget::create(type, *this, insertion_parent);
-    Gfx::IntPoint insertion_position = m_next_insertion_position;
-    if (insertion_parent)
-        insertion_position.move_by(insertion_parent->gwidget()->window_relative_rect().location());
-    widget->set_rect({ insertion_position, { m_grid_size * 10 + 1, m_grid_size * 5 + 1 } });
-    m_next_insertion_position.move_by(m_grid_size, m_grid_size);
-    m_widgets.append(move(widget));
-}
-
-VBForm::~VBForm()
-{
-}
-
-void VBForm::paint_event(GUI::PaintEvent& event)
-{
-    GUI::Painter painter(*this);
-    painter.add_clip_rect(event.rect());
-
-    for (int y = 0; y < height(); y += m_grid_size) {
-        for (int x = 0; x < width(); x += m_grid_size) {
-            painter.set_pixel({ x, y }, Color::from_rgb(0x404040));
-        }
-    }
-}
-
-void VBForm::second_paint_event(GUI::PaintEvent& event)
-{
-    GUI::Painter painter(*this);
-    painter.add_clip_rect(event.rect());
-
-    for (auto& widget : m_widgets) {
-        if (widget.is_selected()) {
-            for_each_direction([&](auto direction) {
-                bool in_layout = widget.is_in_layout();
-                auto grabber_rect = widget.grabber_rect(direction);
-                painter.fill_rect(grabber_rect, in_layout ? Color::White : Color::Black);
-                if (in_layout)
-                    painter.draw_rect(grabber_rect, Color::Black);
-            });
-        }
-    }
-}
-
-bool VBForm::is_selected(const VBWidget& widget) const
-{
-    // FIXME: Fix HashTable and remove this const_cast.
-    return m_selected_widgets.contains(const_cast<VBWidget*>(&widget));
-}
-
-VBWidget* VBForm::widget_at(const Gfx::IntPoint& position)
-{
-    auto result = hit_test(position, GUI::Widget::ShouldRespectGreediness::No);
-    if (!result.widget)
-        return nullptr;
-    auto* gwidget = result.widget;
-    while (gwidget) {
-        if (auto* widget = m_gwidget_map.get(gwidget).value_or(nullptr))
-            return widget;
-        gwidget = gwidget->parent_widget();
-    }
-    return nullptr;
-}
-
-void VBForm::grabber_mousedown_event(GUI::MouseEvent& event, Direction grabber)
-{
-    m_transform_event_origin = event.position();
-    for_each_selected_widget([](auto& widget) { widget.capture_transform_origin_rect(); });
-    m_resize_direction = grabber;
-}
-
-void VBForm::keydown_event(GUI::KeyEvent& event)
-{
-    if (event.key() == KeyCode::Key_Delete) {
-        delete_selected_widgets();
-        return;
-    }
-    if (event.key() == KeyCode::Key_Tab) {
-        if (m_widgets.is_empty())
-            return;
-        if (m_selected_widgets.is_empty()) {
-            set_single_selected_widget(&m_widgets.first());
-            update();
-            return;
-        }
-        size_t selected_widget_index = 0;
-        for (; selected_widget_index < m_widgets.size(); ++selected_widget_index) {
-            if (&m_widgets[selected_widget_index] == *m_selected_widgets.begin())
-                break;
-        }
-        ++selected_widget_index;
-        if (selected_widget_index == m_widgets.size())
-            selected_widget_index = 0;
-        set_single_selected_widget(&m_widgets[selected_widget_index]);
-        update();
-        return;
-    }
-    if (!m_selected_widgets.is_empty()) {
-        switch (event.key()) {
-        case KeyCode::Key_Up:
-            update();
-            for_each_selected_widget([this](auto& widget) {
-                if (widget.is_in_layout())
-                    return;
-                widget.gwidget()->move_by(0, -m_grid_size);
-            });
-            break;
-        case KeyCode::Key_Down:
-            update();
-            for_each_selected_widget([this](auto& widget) {
-                if (widget.is_in_layout())
-                    return;
-                widget.gwidget()->move_by(0, m_grid_size);
-            });
-            break;
-        case KeyCode::Key_Left:
-            update();
-            for_each_selected_widget([this](auto& widget) {
-                if (widget.is_in_layout())
-                    return;
-                widget.gwidget()->move_by(-m_grid_size, 0);
-            });
-            break;
-        case KeyCode::Key_Right:
-            update();
-            for_each_selected_widget([this](auto& widget) {
-                if (widget.is_in_layout())
-                    return;
-                widget.gwidget()->move_by(m_grid_size, 0);
-            });
-            break;
-        default:
-            break;
-        }
-        return;
-    }
-}
-
-void VBForm::set_single_selected_widget(VBWidget* widget)
-{
-    if (!widget) {
-        if (!m_selected_widgets.is_empty()) {
-            m_selected_widgets.clear();
-            on_widget_selected(nullptr);
-            update();
-        }
-        return;
-    }
-    m_selected_widgets.clear();
-    m_selected_widgets.set(widget);
-    on_widget_selected(m_selected_widgets.size() == 1 ? widget : nullptr);
-    update();
-}
-
-void VBForm::add_to_selection(VBWidget& widget)
-{
-    m_selected_widgets.set(&widget);
-    update();
-}
-
-void VBForm::remove_from_selection(VBWidget& widget)
-{
-    m_selected_widgets.remove(&widget);
-    update();
-}
-
-void VBForm::mousedown_event(GUI::MouseEvent& event)
-{
-    if (m_resize_direction == Direction::None) {
-        bool hit_grabber = false;
-        for_each_selected_widget([&](auto& widget) {
-            if (widget.is_in_layout())
-                return;
-            auto grabber = widget.grabber_at(event.position());
-            if (grabber != Direction::None) {
-                hit_grabber = true;
-                return grabber_mousedown_event(event, grabber);
-            }
-        });
-        if (hit_grabber)
-            return;
-    }
-    auto* widget = widget_at(event.position());
-    if (!widget) {
-        set_single_selected_widget(nullptr);
-        return;
-    }
-    if (event.button() == GUI::MouseButton::Left || event.button() == GUI::MouseButton::Right) {
-        m_transform_event_origin = event.position();
-        if (event.modifiers() == Mod_Ctrl)
-            remove_from_selection(*widget);
-        else if (event.modifiers() == Mod_Shift)
-            add_to_selection(*widget);
-        else if (!m_selected_widgets.contains(widget))
-            set_single_selected_widget(widget);
-        for_each_selected_widget([](auto& widget) { widget.capture_transform_origin_rect(); });
-        on_widget_selected(single_selected_widget());
-    }
-}
-
-void VBForm::mousemove_event(GUI::MouseEvent& event)
-{
-    if (event.buttons() & GUI::MouseButton::Left) {
-        if (m_resize_direction == Direction::None) {
-            update();
-            auto delta = event.position() - m_transform_event_origin;
-            for_each_selected_widget([&](auto& widget) {
-                if (widget.is_in_layout())
-                    return;
-                auto new_rect = widget.transform_origin_rect().translated(delta);
-                new_rect.set_x(new_rect.x() - (new_rect.x() % m_grid_size));
-                new_rect.set_y(new_rect.y() - (new_rect.y() % m_grid_size));
-                widget.set_rect(new_rect);
-            });
-            return;
-        }
-        int diff_x = event.x() - m_transform_event_origin.x();
-        int diff_y = event.y() - m_transform_event_origin.y();
-
-        int change_x = 0;
-        int change_y = 0;
-        int change_w = 0;
-        int change_h = 0;
-
-        switch (m_resize_direction) {
-        case Direction::DownRight:
-            change_w = diff_x;
-            change_h = diff_y;
-            break;
-        case Direction::Right:
-            change_w = diff_x;
-            break;
-        case Direction::UpRight:
-            change_w = diff_x;
-            change_y = diff_y;
-            change_h = -diff_y;
-            break;
-        case Direction::Up:
-            change_y = diff_y;
-            change_h = -diff_y;
-            break;
-        case Direction::UpLeft:
-            change_x = diff_x;
-            change_w = -diff_x;
-            change_y = diff_y;
-            change_h = -diff_y;
-            break;
-        case Direction::Left:
-            change_x = diff_x;
-            change_w = -diff_x;
-            break;
-        case Direction::DownLeft:
-            change_x = diff_x;
-            change_w = -diff_x;
-            change_h = diff_y;
-            break;
-        case Direction::Down:
-            change_h = diff_y;
-            break;
-        default:
-            ASSERT_NOT_REACHED();
-        }
-
-        update();
-        for_each_selected_widget([&](auto& widget) {
-            if (widget.is_in_layout())
-                return;
-            auto new_rect = widget.transform_origin_rect();
-            Gfx::IntSize minimum_size { 5, 5 };
-            new_rect.set_x(new_rect.x() + change_x);
-            new_rect.set_y(new_rect.y() + change_y);
-            new_rect.set_width(max(minimum_size.width(), new_rect.width() + change_w));
-            new_rect.set_height(max(minimum_size.height(), new_rect.height() + change_h));
-            new_rect.set_x(new_rect.x() - (new_rect.x() % m_grid_size));
-            new_rect.set_y(new_rect.y() - (new_rect.y() % m_grid_size));
-            new_rect.set_width(new_rect.width() - (new_rect.width() % m_grid_size) + 1);
-            new_rect.set_height(new_rect.height() - (new_rect.height() % m_grid_size) + 1);
-            widget.set_rect(new_rect);
-        });
-
-        set_cursor_type_from_grabber(m_resize_direction);
-    } else {
-        for (auto& widget : m_selected_widgets) {
-            if (widget->is_in_layout())
-                continue;
-            auto grabber_at = widget->grabber_at(event.position());
-            set_cursor_type_from_grabber(grabber_at);
-            if (grabber_at != Direction::None)
-                break;
-        }
-    }
-}
-
-void VBForm::load_from_file(const String& path)
-{
-    auto file = Core::File::construct(path);
-    if (!file->open(Core::IODevice::ReadOnly)) {
-        GUI::MessageBox::show(window(), String::format("Could not open '%s' for reading", path.characters()), "Error", GUI::MessageBox::Type::Error);
-        return;
-    }
-
-    auto file_contents = file->read_all();
-    auto form_json = JsonValue::from_string(file_contents);
-    ASSERT(form_json.has_value());
-
-    if (!form_json.value().is_object()) {
-        GUI::MessageBox::show(window(), String::format("Could not parse '%s'", path.characters()), "Error", GUI::MessageBox::Type::Error);
-        return;
-    }
-
-    m_name = form_json.value().as_object().get("name").to_string();
-    auto widgets = form_json.value().as_object().get("widgets").as_array();
-
-    widgets.for_each([&](const JsonValue& widget_value) {
-        auto& widget_object = widget_value.as_object();
-        auto widget_class = widget_object.get("class").as_string();
-        auto widget_type = widget_type_from_class_name(widget_class);
-        // FIXME: Construct VBWidget within the right parent..
-        auto vbwidget = VBWidget::create(widget_type, *this, nullptr);
-        widget_object.for_each_member([&](auto& property_name, const JsonValue& property_value) {
-            (void)property_name;
-            (void)property_value;
-            VBProperty& property = vbwidget->property(property_name);
-            dbgprintf("Set property %s.%s to '%s'\n", widget_class.characters(), property_name.characters(), property_value.to_string().characters());
-            property.set_value(property_value);
-        });
-        m_widgets.append(vbwidget);
-    });
-}
-
-void VBForm::write_to_file(const String& path)
-{
-    auto file = Core::File::construct(path);
-    if (!file->open(Core::IODevice::WriteOnly)) {
-        GUI::MessageBox::show(window(), String::format("Could not open '%s' for writing", path.characters()), "Error", GUI::MessageBox::Type::Error);
-        return;
-    }
-
-    JsonObject form_object;
-    form_object.set("name", m_name);
-    JsonArray widget_array;
-    for (auto& widget : m_widgets) {
-        JsonObject widget_object;
-        widget.for_each_property([&](auto& property) {
-            if (property.value().is_bool())
-                widget_object.set(property.name(), property.value().to_bool());
-            else if (property.value().is_i32())
-                widget_object.set(property.name(), property.value().to_i32());
-            else if (property.value().is_i64())
-                widget_object.set(property.name(), property.value().to_i64());
-            else
-                widget_object.set(property.name(), property.value().to_string());
-        });
-        widget_array.append(widget_object);
-    }
-    form_object.set("widgets", widget_array);
-    file->write(form_object.to_string());
-}
-
-void VBForm::dump()
-{
-    dbgprintf("[Form]\n");
-    dbgprintf("Name=%s\n", m_name.characters());
-    dbgprintf("\n");
-    int i = 0;
-    for (auto& widget : m_widgets) {
-        dbgprintf("[Widget %d]\n", i++);
-        widget.for_each_property([](auto& property) {
-            dbgprintf("%s=%s\n", property.name().characters(), property.value().to_string().characters());
-        });
-        dbgprintf("\n");
-    }
-}
-
-void VBForm::mouseup_event(GUI::MouseEvent& event)
-{
-    if (event.button() == GUI::MouseButton::Left) {
-        m_transform_event_origin = {};
-        m_resize_direction = Direction::None;
-    }
-}
-
-void VBForm::delete_selected_widgets()
-{
-    Vector<VBWidget*> to_delete;
-    for_each_selected_widget([&](auto& widget) {
-        to_delete.append(&widget);
-    });
-    if (to_delete.is_empty())
-        return;
-    for (auto& widget : to_delete)
-        m_widgets.remove_first_matching([&widget](auto& entry) { return entry == widget; });
-    on_widget_selected(single_selected_widget());
-    update();
-}
-
-template<typename Callback>
-void VBForm::for_each_selected_widget(Callback callback)
-{
-    for (auto& widget : m_selected_widgets)
-        callback(*widget);
-}
-
-void VBForm::set_cursor_type_from_grabber(Direction grabber)
-{
-    if (grabber == m_mouse_direction_type)
-        return;
-
-    switch (grabber) {
-    case Direction::Up:
-    case Direction::Down:
-        window()->set_cursor(Gfx::StandardCursor::ResizeVertical);
-        break;
-    case Direction::Left:
-    case Direction::Right:
-        window()->set_cursor(Gfx::StandardCursor::ResizeHorizontal);
-        break;
-    case Direction::UpLeft:
-    case Direction::DownRight:
-        window()->set_cursor(Gfx::StandardCursor::ResizeDiagonalTLBR);
-        break;
-    case Direction::UpRight:
-    case Direction::DownLeft:
-        window()->set_cursor(Gfx::StandardCursor::ResizeDiagonalBLTR);
-        break;
-    case Direction::None:
-        window()->set_cursor(Gfx::StandardCursor::None);
-        break;
-    }
-
-    m_mouse_direction_type = grabber;
-}
-
-VBWidget* VBForm::single_selected_widget()
-{
-    if (m_selected_widgets.size() != 1)
-        return nullptr;
-    return *m_selected_widgets.begin();
-}
diff --git a/DevTools/VisualBuilder/VBForm.h b/DevTools/VisualBuilder/VBForm.h
deleted file mode 100644
index d59c23cded..0000000000
--- a/DevTools/VisualBuilder/VBForm.h
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- *    list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#pragma once
-
-#include "VBWidget.h"
-#include <AK/NonnullRefPtrVector.h>
-#include <LibGUI/Widget.h>
-
-class VBForm : public GUI::Widget {
-    C_OBJECT(VBForm)
-    friend class VBWidget;
-
-public:
-    virtual ~VBForm() override;
-
-    static VBForm* current();
-
-    String name() const { return m_name; }
-    void set_name(const String& name) { m_name = name; }
-
-    bool is_selected(const VBWidget&) const;
-    VBWidget* widget_at(const Gfx::IntPoint&);
-
-    void set_should_snap_to_grip(bool snap) { m_should_snap_to_grid = snap; }
-    bool should_snap_to_grid() const { return m_should_snap_to_grid; }
-
-    void insert_widget(VBWidgetType);
-
-    Function<void(VBWidget*)> on_widget_selected;
-
-    void load_from_file(const String& path);
-    void write_to_file(const String& path);
-    void dump();
-
-protected:
-    virtual void paint_event(GUI::PaintEvent&) override;
-    virtual void second_paint_event(GUI::PaintEvent&) override;
-    virtual void mousedown_event(GUI::MouseEvent&) override;
-    virtual void mousemove_event(GUI::MouseEvent&) override;
-    virtual void mouseup_event(GUI::MouseEvent&) override;
-    virtual void context_menu_event(GUI::ContextMenuEvent&) override;
-    virtual void keydown_event(GUI::KeyEvent&) override;
-
-private:
-    explicit VBForm(const String& name);
-
-    void grabber_mousedown_event(GUI::MouseEvent&, Direction grabber);
-    void set_single_selected_widget(VBWidget*);
-    void add_to_selection(VBWidget&);
-    void remove_from_selection(VBWidget&);
-    void delete_selected_widgets();
-    template<typename Callback>
-    void for_each_selected_widget(Callback);
-    void set_cursor_type_from_grabber(Direction grabber);
-
-    VBWidget* single_selected_widget();
-
-    String m_name;
-    int m_grid_size { 5 };
-    bool m_should_snap_to_grid { true };
-    NonnullRefPtrVector<VBWidget> m_widgets;
-    HashMap<GUI::Widget*, VBWidget*> m_gwidget_map;
-    HashTable<VBWidget*> m_selected_widgets;
-    Gfx::IntPoint m_transform_event_origin;
-    Gfx::IntPoint m_next_insertion_position;
-    Direction m_resize_direction { Direction::None };
-    Direction m_mouse_direction_type { Direction::None };
-    RefPtr<GUI::Menu> m_context_menu;
-};
diff --git a/DevTools/VisualBuilder/VBPropertiesWindow.cpp b/DevTools/VisualBuilder/VBPropertiesWindow.cpp
deleted file mode 100644
index 2d5eccb034..0000000000
--- a/DevTools/VisualBuilder/VBPropertiesWindow.cpp
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- *    list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "VBPropertiesWindow.h"
-#include "VBWidgetPropertyModel.h"
-#include <LibGUI/BoxLayout.h>
-#include <LibGUI/ComboBox.h>
-#include <LibGUI/ModelEditingDelegate.h>
-#include <LibGUI/TableView.h>
-#include <LibGUI/TextBox.h>
-#include <LibGUI/Widget.h>
-
-class BoolValuesModel final : public GUI::Model {
-public:
-    virtual int row_count(const GUI::ModelIndex&) const override { return 2; }
-    virtual int column_count(const GUI::ModelIndex&) const override { return 1; }
-    virtual void update() override { }
-    virtual GUI::Variant data(const GUI::ModelIndex& index, GUI::ModelRole role) const override
-    {
-        if (role != GUI::ModelRole::Display)
-            return {};
-        switch (index.row()) {
-        case 0:
-            return "false";
-        case 1:
-            return "true";
-        }
-        ASSERT_NOT_REACHED();
-    }
-};
-
-class BoolModelEditingDelegate : public GUI::ModelEditingDelegate {
-public:
-    BoolModelEditingDelegate() { }
-    virtual ~BoolModelEditingDelegate() override { }
-
-    virtual RefPtr<GUI::Widget> create_widget() override
-    {
-        auto combo = GUI::ComboBox::construct();
-        combo->set_only_allow_values_from_model(true);
-        combo->set_model(adopt(*new BoolValuesModel));
-        combo->on_return_pressed = [this] { commit(); };
-        combo->on_change = [this](auto&, auto&) { commit(); };
-        return combo;
-    }
-    virtual GUI::Variant value() const override { return static_cast<const GUI::ComboBox*>(widget())->text() == "true"; }
-    virtual void set_value(const GUI::Variant& value) override { static_cast<GUI::ComboBox*>(widget())->set_text(value.to_string()); }
-    virtual void will_begin_editing() override
-    {
-        auto& combo = *static_cast<GUI::ComboBox*>(widget());
-        combo.select_all();
-        combo.open();
-    }
-};
-
-VBPropertiesWindow::VBPropertiesWindow()
-{
-    set_title("Properties");
-    set_rect(780, 200, 240, 280);
-    set_icon(Gfx::Bitmap::load_from_file("/res/icons/16x16/app-visual-builder.png"));
-
-    auto& widget = set_main_widget<GUI::Widget>();
-    widget.set_fill_with_background_color(true);
-    widget.set_layout<GUI::VerticalBoxLayout>();
-    widget.layout()->set_margins({ 2, 2, 2, 2 });
-
-    m_table_view = widget.add<GUI::TableView>();
-    m_table_view->set_column_headers_visible(false);
-    m_table_view->set_editable(true);
-
-    m_table_view->aid_create_editing_delegate = [this](auto& index) -> OwnPtr<GUI::ModelEditingDelegate> {
-        if (!m_table_view->model())
-            return nullptr;
-        auto type_index = m_table_view->model()->index(index.row(), VBWidgetPropertyModel::Column::Type);
-        auto type = type_index.data(GUI::ModelRole::Custom).to_i32();
-        switch ((GUI::Variant::Type)type) {
-        case GUI::Variant::Type::Bool:
-            return make<BoolModelEditingDelegate>();
-        default:
-            return make<GUI::StringModelEditingDelegate>();
-        }
-    };
-}
-
-VBPropertiesWindow::~VBPropertiesWindow()
-{
-}
diff --git a/DevTools/VisualBuilder/VBPropertiesWindow.h b/DevTools/VisualBuilder/VBPropertiesWindow.h
deleted file mode 100644
index 9900bb1dcd..0000000000
--- a/DevTools/VisualBuilder/VBPropertiesWindow.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- *    list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#pragma once
-
-#include <LibGUI/Window.h>
-
-class VBPropertiesWindow final : public GUI::Window {
-    C_OBJECT(VBPropertiesWindow)
-public:
-    VBPropertiesWindow();
-    virtual ~VBPropertiesWindow() override;
-
-    GUI::TableView& table_view() { return *m_table_view; }
-    const GUI::TableView& table_view() const { return *m_table_view; }
-
-private:
-    RefPtr<GUI::TableView> m_table_view;
-};
diff --git a/DevTools/VisualBuilder/VBProperty.cpp b/DevTools/VisualBuilder/VBProperty.cpp
deleted file mode 100644
index 96e352aa3b..0000000000
--- a/DevTools/VisualBuilder/VBProperty.cpp
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- *    list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "VBProperty.h"
-#include "VBWidget.h"
-
-VBProperty::VBProperty(VBWidget& widget, const String& name, const GUI::Variant& value)
-    : m_widget(widget)
-    , m_name(name)
-    , m_value(value)
-{
-}
-
-VBProperty::VBProperty(VBWidget& widget, const String& name, Function<GUI::Variant(const GUI::Widget&)>&& getter, Function<void(GUI::Widget&, const GUI::Variant&)>&& setter)
-    : m_widget(widget)
-    , m_name(name)
-    , m_getter(move(getter))
-    , m_setter(move(setter))
-{
-    ASSERT(m_getter);
-    ASSERT(m_setter);
-}
-
-VBProperty::~VBProperty()
-{
-}
-
-void VBProperty::set_value(const GUI::Variant& value)
-{
-    if (m_value == value)
-        return;
-    m_value = value;
-    if (m_setter)
-        m_setter(*m_widget.gwidget(), value);
-    m_widget.property_did_change();
-}
diff --git a/DevTools/VisualBuilder/VBProperty.h b/DevTools/VisualBuilder/VBProperty.h
deleted file mode 100644
index 1d6e44f4e0..0000000000
--- a/DevTools/VisualBuilder/VBProperty.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- *    list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#pragma once
-
-#include <AK/Function.h>
-#include <AK/String.h>
-#include <LibGUI/Forward.h>
-#include <LibGUI/Variant.h>
-
-class VBWidget;
-
-class VBProperty {
-    friend class VBWidget;
-
-public:
-    VBProperty(VBWidget&, const String& name, const GUI::Variant& value);
-    VBProperty(VBWidget&, const String& name, Function<GUI::Variant(const GUI::Widget&)>&& getter, Function<void(GUI::Widget&, const GUI::Variant&)>&& setter);
-    ~VBProperty();
-
-    String name() const { return m_name; }
-    const GUI::Variant& value() const { return m_value; }
-    void set_value(const GUI::Variant&);
-
-    bool is_readonly() const { return m_readonly; }
-    void set_readonly(bool b) { m_readonly = b; }
-
-    void sync();
-
-private:
-    VBWidget& m_widget;
-    String m_name;
-    GUI::Variant m_value;
-    Function<GUI::Variant(const GUI::Widget&)> m_getter;
-    Function<void(GUI::Widget&, const GUI::Variant&)> m_setter;
-    bool m_readonly { false };
-};
diff --git a/DevTools/VisualBuilder/VBWidget.cpp b/DevTools/VisualBuilder/VBWidget.cpp
deleted file mode 100644
index ded0920604..0000000000
--- a/DevTools/VisualBuilder/VBWidget.cpp
+++ /dev/null
@@ -1,244 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- *    list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "VBWidget.h"
-#include "VBForm.h"
-#include "VBProperty.h"
-#include "VBWidgetPropertyModel.h"
-#include "VBWidgetRegistry.h"
-#include <LibGUI/Button.h>
-#include <LibGUI/CheckBox.h>
-#include <LibGUI/GroupBox.h>
-#include <LibGUI/Label.h>
-#include <LibGUI/Painter.h>
-#include <LibGUI/ProgressBar.h>
-#include <LibGUI/RadioButton.h>
-#include <LibGUI/ScrollBar.h>
-#include <LibGUI/Slider.h>
-#include <LibGUI/SpinBox.h>
-#include <LibGUI/TextEditor.h>
-
-VBWidget::VBWidget(VBWidgetType type, VBForm& form, VBWidget* parent)
-    : m_type(type)
-    , m_form(form)
-    , m_property_model(VBWidgetPropertyModel::create(*this))
-{
-    auto* widget_parent = parent ? parent->gwidget() : &form;
-    m_gwidget = VBWidgetRegistry::build_gwidget(*this, type, widget_parent, m_properties);
-    m_form.m_gwidget_map.set(m_gwidget, this);
-    setup_properties();
-}
-
-VBWidget::~VBWidget()
-{
-    m_form.m_gwidget_map.remove(m_gwidget);
-    m_form.m_selected_widgets.remove(this);
-    m_gwidget->parent()->remove_child(*m_gwidget);
-}
-
-Gfx::IntRect VBWidget::rect() const
-{
-    return m_gwidget->window_relative_rect();
-}
-
-void VBWidget::set_rect(const Gfx::IntRect& rect)
-{
-    if (rect == m_gwidget->window_relative_rect())
-        return;
-    auto new_window_relative_rect = rect;
-    if (m_gwidget->parent())
-        new_window_relative_rect.move_by(-m_gwidget->parent_widget()->window_relative_rect().location());
-    m_gwidget->set_relative_rect(new_window_relative_rect);
-    synchronize_properties();
-}
-
-bool VBWidget::is_selected() const
-{
-    return m_form.is_selected(*this);
-}
-
-Gfx::IntRect VBWidget::grabber_rect(Direction direction) const
-{
-    int grabber_size = 5;
-    int half_grabber_size = grabber_size / 2;
-    switch (direction) {
-    case Direction::Left:
-        return { rect().x() - half_grabber_size, rect().center().y() - half_grabber_size, grabber_size, grabber_size };
-    case Direction::UpLeft:
-        return { rect().x() - half_grabber_size, rect().y() - half_grabber_size, grabber_size, grabber_size };
-    case Direction::Up:
-        return { rect().center().x() - half_grabber_size, rect().y() - half_grabber_size, grabber_size, grabber_size };
-    case Direction::UpRight:
-        return { rect().right() - half_grabber_size, rect().y() - half_grabber_size, grabber_size, grabber_size };
-    case Direction::Right:
-        return { rect().right() - half_grabber_size, rect().center().y() - half_grabber_size, grabber_size, grabber_size };
-    case Direction::DownLeft:
-        return { rect().x() - half_grabber_size, rect().bottom() - half_grabber_size, grabber_size, grabber_size };
-    case Direction::Down:
-        return { rect().center().x() - half_grabber_size, rect().bottom() - half_grabber_size, grabber_size, grabber_size };
-    case Direction::DownRight:
-        return { rect().right() - half_grabber_size, rect().bottom() - half_grabber_size, grabber_size, grabber_size };
-    default:
-        ASSERT_NOT_REACHED();
-    }
-}
-
-Direction VBWidget::grabber_at(const Gfx::IntPoint& position) const
-{
-    Direction found_grabber = Direction::None;
-    for_each_direction([&](Direction direction) {
-        if (grabber_rect(direction).contains(position))
-            found_grabber = direction;
-    });
-    return found_grabber;
-}
-
-void VBWidget::for_each_property(Function<void(VBProperty&)> callback)
-{
-    for (auto& it : m_properties) {
-        callback(it);
-    }
-}
-
-void VBWidget::add_property(const String& name, Function<GUI::Variant(const GUI::Widget&)>&& getter, Function<void(GUI::Widget&, const GUI::Variant&)>&& setter)
-{
-    auto& prop = property(name);
-    prop.m_getter = move(getter);
-    prop.m_setter = move(setter);
-}
-
-#define VB_ADD_PROPERTY(gclass, name, getter, setter, variant_type)                    \
-    add_property(                                                                      \
-        name,                                                                          \
-        [](auto& widget) -> GUI::Variant { return ((const gclass&)widget).getter(); }, \
-        [](auto& widget, auto& value) { ((gclass&)widget).setter(value.to_##variant_type()); })
-
-void VBWidget::setup_properties()
-{
-    VB_ADD_PROPERTY(Core::Object, "name", name, set_name, string);
-
-    VB_ADD_PROPERTY(GUI::Widget, "width", width, set_width, i32);
-    VB_ADD_PROPERTY(GUI::Widget, "height", height, set_height, i32);
-    VB_ADD_PROPERTY(GUI::Widget, "x", x, set_x, i32);
-    VB_ADD_PROPERTY(GUI::Widget, "y", y, set_y, i32);
-    VB_ADD_PROPERTY(GUI::Widget, "visible", is_visible, set_visible, bool);
-    VB_ADD_PROPERTY(GUI::Widget, "enabled", is_enabled, set_enabled, bool);
-    VB_ADD_PROPERTY(GUI::Widget, "tooltip", tooltip, set_tooltip, string);
-    VB_ADD_PROPERTY(GUI::Widget, "backcolor", background_color, set_background_color, color);
-    VB_ADD_PROPERTY(GUI::Widget, "forecolor", foreground_color, set_foreground_color, color);
-    VB_ADD_PROPERTY(GUI::Widget, "autofill", fill_with_background_color, set_fill_with_background_color, bool);
-
-    if (m_type == VBWidgetType::GLabel) {
-        VB_ADD_PROPERTY(GUI::Label, "text", text, set_text, string);
-    }
-
-    if (m_type == VBWidgetType::GButton) {
-        VB_ADD_PROPERTY(GUI::Button, "text", text, set_text, string);
-    }
-
-    if (m_type == VBWidgetType::GGroupBox) {
-        VB_ADD_PROPERTY(GUI::GroupBox, "title", title, set_title, string);
-    }
-
-    if (m_type == VBWidgetType::GScrollBar) {
-        VB_ADD_PROPERTY(GUI::ScrollBar, "min", min, set_min, i32);
-        VB_ADD_PROPERTY(GUI::ScrollBar, "max", max, set_max, i32);
-        VB_ADD_PROPERTY(GUI::ScrollBar, "value", value, set_value, i32);
-        VB_ADD_PROPERTY(GUI::ScrollBar, "step", step, set_step, i32);
-    }
-
-    if (m_type == VBWidgetType::GSpinBox) {
-        VB_ADD_PROPERTY(GUI::SpinBox, "min", min, set_min, i32);
-        VB_ADD_PROPERTY(GUI::SpinBox, "max", max, set_max, i32);
-        VB_ADD_PROPERTY(GUI::SpinBox, "value", value, set_value, i32);
-    }
-
-    if (m_type == VBWidgetType::GProgressBar) {
-        VB_ADD_PROPERTY(GUI::ProgressBar, "min", min, set_min, i32);
-        VB_ADD_PROPERTY(GUI::ProgressBar, "max", max, set_max, i32);
-        VB_ADD_PROPERTY(GUI::ProgressBar, "value", value, set_value, i32);
-    }
-
-    if (m_type == VBWidgetType::GSlider) {
-        VB_ADD_PROPERTY(GUI::Slider, "min", min, set_min, i32);
-        VB_ADD_PROPERTY(GUI::Slider, "max", max, set_max, i32);
-        VB_ADD_PROPERTY(GUI::Slider, "value", value, set_value, i32);
-    }
-
-    if (m_type == VBWidgetType::GTextEditor) {
-        VB_ADD_PROPERTY(GUI::TextEditor, "text", text, set_text, string);
-        VB_ADD_PROPERTY(GUI::TextEditor, "ruler_visible", is_ruler_visible, set_ruler_visible, bool);
-    }
-
-    if (m_type == VBWidgetType::GCheckBox) {
-        VB_ADD_PROPERTY(GUI::CheckBox, "text", text, set_text, string);
-        VB_ADD_PROPERTY(GUI::CheckBox, "checked", is_checked, set_checked, bool);
-    }
-
-    if (m_type == VBWidgetType::GRadioButton) {
-        VB_ADD_PROPERTY(GUI::RadioButton, "text", text, set_text, string);
-        VB_ADD_PROPERTY(GUI::RadioButton, "checked", is_checked, set_checked, bool);
-    }
-}
-
-void VBWidget::synchronize_properties()
-{
-    for (auto& prop : m_properties) {
-        if (prop.m_getter)
-            prop.m_value = prop.m_getter(*gwidget());
-    }
-
-    m_property_model->update();
-}
-
-VBProperty& VBWidget::property(const String& name)
-{
-    for (auto& prop : m_properties) {
-        if (prop.name() == name)
-            return prop;
-    }
-    m_properties.append(make<VBProperty>(*this, name, GUI::Variant()));
-    return m_properties.last();
-}
-
-void VBWidget::property_did_change()
-{
-    m_form.update();
-}
-
-void VBWidget::capture_transform_origin_rect()
-{
-    m_transform_origin_rect = rect();
-}
-
-bool VBWidget::is_in_layout() const
-{
-    if (auto* parent_widget = m_gwidget->parent_widget()) {
-        if (parent_widget->layout())
-            return true;
-    }
-    return false;
-}
diff --git a/DevTools/VisualBuilder/VBWidget.h b/DevTools/VisualBuilder/VBWidget.h
deleted file mode 100644
index 137827867a..0000000000
--- a/DevTools/VisualBuilder/VBWidget.h
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- *    list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#pragma once
-
-#include "VBWidgetType.h"
-#include <AK/Function.h>
-#include <AK/HashMap.h>
-#include <AK/NonnullOwnPtrVector.h>
-#include <AK/NonnullRefPtr.h>
-#include <AK/RefCounted.h>
-#include <AK/Weakable.h>
-#include <LibGUI/Widget.h>
-#include <LibGfx/Rect.h>
-
-class VBForm;
-class VBProperty;
-class VBWidgetPropertyModel;
-
-enum class Direction {
-    None,
-    Left,
-    UpLeft,
-    Up,
-    UpRight,
-    Right,
-    DownRight,
-    Down,
-    DownLeft
-};
-template<typename Callback>
-inline void for_each_direction(Callback callback)
-{
-    callback(Direction::Left);
-    callback(Direction::UpLeft);
-    callback(Direction::Up);
-    callback(Direction::UpRight);
-    callback(Direction::Right);
-    callback(Direction::DownRight);
-    callback(Direction::Down);
-    callback(Direction::DownLeft);
-}
-
-class VBWidget : public RefCounted<VBWidget>
-    , public Weakable<VBWidget> {
-    friend class VBWidgetPropertyModel;
-
-public:
-    static NonnullRefPtr<VBWidget> create(VBWidgetType type, VBForm& form, VBWidget* parent) { return adopt(*new VBWidget(type, form, parent)); }
-    ~VBWidget();
-
-    bool is_selected() const;
-
-    Gfx::IntRect rect() const;
-    void set_rect(const Gfx::IntRect&);
-
-    Gfx::IntRect grabber_rect(Direction) const;
-    Direction grabber_at(const Gfx::IntPoint&) const;
-
-    GUI::Widget* gwidget() { return m_gwidget; }
-
-    VBProperty& property(const String&);
-
-    void for_each_property(Function<void(VBProperty&)>);
-
-    VBWidgetPropertyModel& property_model() { return *m_property_model; }
-
-    void setup_properties();
-    void synchronize_properties();
-
-    void property_did_change();
-
-    Gfx::IntRect transform_origin_rect() const { return m_transform_origin_rect; }
-    void capture_transform_origin_rect();
-
-    bool is_in_layout() const;
-
-private:
-    VBWidget(VBWidgetType, VBForm&, VBWidget* parent);
-
-    void add_property(const String& name, Function<GUI::Variant(const GUI::Widget&)>&& getter, Function<void(GUI::Widget&, const GUI::Variant&)>&& setter);
-
-    VBWidgetType m_type { VBWidgetType::None };
-    VBForm& m_form;
-    RefPtr<GUI::Widget> m_gwidget;
-    NonnullOwnPtrVector<VBProperty> m_properties;
-    NonnullRefPtr<VBWidgetPropertyModel> m_property_model;
-    Gfx::IntRect m_transform_origin_rect;
-};
diff --git a/DevTools/VisualBuilder/VBWidgetPropertyModel.cpp b/DevTools/VisualBuilder/VBWidgetPropertyModel.cpp
deleted file mode 100644
index 4b69e14177..0000000000
--- a/DevTools/VisualBuilder/VBWidgetPropertyModel.cpp
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- *    list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "VBWidgetPropertyModel.h"
-#include "VBProperty.h"
-#include "VBWidget.h"
-#include <LibGfx/Font.h>
-
-VBWidgetPropertyModel::VBWidgetPropertyModel(VBWidget& widget)
-    : m_widget(widget)
-{
-}
-
-VBWidgetPropertyModel::~VBWidgetPropertyModel()
-{
-}
-
-int VBWidgetPropertyModel::row_count(const GUI::ModelIndex&) const
-{
-    return m_widget.m_properties.size();
-}
-
-String VBWidgetPropertyModel::column_name(int column) const
-{
-    switch (column) {
-    case Column::Name:
-        return "Name";
-    case Column::Value:
-        return "Value";
-    case Column::Type:
-        return "Type";
-    default:
-        ASSERT_NOT_REACHED();
-    }
-}
-
-GUI::Variant VBWidgetPropertyModel::data(const GUI::ModelIndex& index, GUI::ModelRole role) const
-{
-    if (role == GUI::ModelRole::TextAlignment) {
-        return Gfx::TextAlignment::CenterLeft;
-    }
-    if (role == GUI::ModelRole::Font) {
-        if (index.column() == Column::Name)
-            return Gfx::Font::default_bold_font();
-        return {};
-    }
-    if (role == GUI::ModelRole::Custom) {
-        auto& property = m_widget.m_properties[index.row()];
-        if (index.column() == Column::Type)
-            return (int)property.value().type();
-        return {};
-    }
-    if (role == GUI::ModelRole::Display) {
-        auto& property = m_widget.m_properties[index.row()];
-        switch (index.column()) {
-        case Column::Name:
-            return property.name();
-        case Column::Value:
-            return property.value();
-        case Column::Type:
-            return to_string(property.value().type());
-        }
-        ASSERT_NOT_REACHED();
-    }
-    if (role == GUI::ModelRole::ForegroundColor) {
-        auto& property = m_widget.m_properties[index.row()];
-        switch (index.column()) {
-        case Column::Name:
-            return Color::Black;
-        case Column::Type:
-            return Color::Blue;
-        case Column::Value:
-            return property.is_readonly() ? Color(Color::MidGray) : Color(Color::Black);
-        }
-        ASSERT_NOT_REACHED();
-    }
-    return {};
-}
-
-void VBWidgetPropertyModel::set_data(const GUI::ModelIndex& index, const GUI::Variant& value)
-{
-    ASSERT(index.column() == Column::Value);
-    auto& property = m_widget.m_properties[index.row()];
-    ASSERT(!property.is_readonly());
-    property.set_value(value);
-}
-
-bool VBWidgetPropertyModel::is_editable(const GUI::ModelIndex& index) const
-{
-    if (index.column() != Column::Value)
-        return false;
-    auto& property = m_widget.m_properties[index.row()];
-    return !property.is_readonly();
-}
diff --git a/DevTools/VisualBuilder/VBWidgetPropertyModel.h b/DevTools/VisualBuilder/VBWidgetPropertyModel.h
deleted file mode 100644
index c96a5cad50..0000000000
--- a/DevTools/VisualBuilder/VBWidgetPropertyModel.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- *    list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#pragma once
-
-#include <LibGUI/Model.h>
-
-class VBWidget;
-class VBProperty;
-
-class VBWidgetPropertyModel : public GUI::Model {
-public:
-    enum Column {
-        Name = 0,
-        Value,
-        Type,
-        __Count
-    };
-
-    static NonnullRefPtr<VBWidgetPropertyModel> create(VBWidget& widget) { return adopt(*new VBWidgetPropertyModel(widget)); }
-    virtual ~VBWidgetPropertyModel() override;
-
-    virtual int row_count(const GUI::ModelIndex&) const override;
-    virtual int column_count(const GUI::ModelIndex&) const override { return Column::__Count; }
-    virtual String column_name(int column) const override;
-    virtual GUI::Variant data(const GUI::ModelIndex&, GUI::ModelRole) const override;
-    virtual void update() override { did_update(); }
-    virtual bool is_editable(const GUI::ModelIndex&) const override;
-    virtual void set_data(const GUI::ModelIndex&, const GUI::Variant&) override;
-
-private:
-    explicit VBWidgetPropertyModel(VBWidget&);
-
-    VBWidget& m_widget;
-};
diff --git a/DevTools/VisualBuilder/VBWidgetRegistry.cpp b/DevTools/VisualBuilder/VBWidgetRegistry.cpp
deleted file mode 100644
index 2366998151..0000000000
--- a/DevTools/VisualBuilder/VBWidgetRegistry.cpp
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- *    list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "VBWidgetRegistry.h"
-#include "VBProperty.h"
-#include <LibGUI/Button.h>
-#include <LibGUI/CheckBox.h>
-#include <LibGUI/GroupBox.h>
-#include <LibGUI/Label.h>
-#include <LibGUI/ProgressBar.h>
-#include <LibGUI/RadioButton.h>
-#include <LibGUI/ScrollBar.h>
-#include <LibGUI/Slider.h>
-#include <LibGUI/SpinBox.h>
-#include <LibGUI/TextEditor.h>
-
-String to_class_name(VBWidgetType type)
-{
-    switch (type) {
-    case VBWidgetType::GWidget:
-        return "GUI::Widget";
-    case VBWidgetType::GButton:
-        return "GButton";
-    case VBWidgetType::GLabel:
-        return "GLabel";
-    case VBWidgetType::GSpinBox:
-        return "GSpinBox";
-    case VBWidgetType::GTextEditor:
-        return "GTextEditor";
-    case VBWidgetType::GProgressBar:
-        return "GProgressBar";
-    case VBWidgetType::GCheckBox:
-        return "GCheckBox";
-    case VBWidgetType::GRadioButton:
-        return "GRadioButton";
-    case VBWidgetType::GScrollBar:
-        return "GScrollBar";
-    case VBWidgetType::GGroupBox:
-        return "GGroupBox";
-    case VBWidgetType::GSlider:
-        return "GSlider";
-    default:
-        ASSERT_NOT_REACHED();
-    }
-}
-
-VBWidgetType widget_type_from_class_name(const StringView& name)
-{
-    if (name == "GUI::Widget")
-        return VBWidgetType::GWidget;
-    if (name == "GButton")
-        return VBWidgetType::GButton;
-    if (name == "GLabel")
-        return VBWidgetType::GLabel;
-    if (name == "GSpinBox")
-        return VBWidgetType::GSpinBox;
-    if (name == "GTextEditor")
-        return VBWidgetType::GTextEditor;
-    if (name == "GProgressBar")
-        return VBWidgetType::GProgressBar;
-    if (name == "GCheckBox")
-        return VBWidgetType::GCheckBox;
-    if (name == "GRadioButton")
-        return VBWidgetType::GRadioButton;
-    if (name == "GScrollBar")
-        return VBWidgetType::GScrollBar;
-    if (name == "GGroupBox")
-        return VBWidgetType::GGroupBox;
-    if (name == "GSlider")
-        return VBWidgetType::GSlider;
-    ASSERT_NOT_REACHED();
-}
-
-static RefPtr<GUI::Widget> build_gwidget(VBWidgetType type, GUI::Widget* parent)
-{
-    switch (type) {
-    case VBWidgetType::GWidget:
-        return parent->add<GUI::Widget>();
-    case VBWidgetType::GScrollBar:
-        return parent->add<GUI::ScrollBar>(Orientation::Vertical);
-    case VBWidgetType::GGroupBox:
-        return parent->add<GUI::GroupBox>("groupbox_1");
-    case VBWidgetType::GLabel: {
-        auto& label = parent->add<GUI::Label>();
-        label.set_fill_with_background_color(true);
-        label.set_text("label_1");
-        return label;
-    }
-    case VBWidgetType::GButton: {
-        auto& button = parent->add<GUI::Button>();
-        button.set_text("button_1");
-        return button;
-    }
-    case VBWidgetType::GSpinBox: {
-        auto& box = parent->add<GUI::SpinBox>();
-        box.set_range(0, 100);
-        box.set_value(0);
-        return box;
-    }
-    case VBWidgetType::GTextEditor: {
-        auto& editor = parent->add<GUI::TextEditor>();
-        editor.set_ruler_visible(false);
-        return editor;
-    }
-    case VBWidgetType::GProgressBar: {
-        auto& bar = parent->add<GUI::ProgressBar>();
-        bar.set_format(GUI::ProgressBar::Format::NoText);
-        bar.set_range(0, 100);
-        bar.set_value(50);
-        return bar;
-    }
-    case VBWidgetType::GSlider: {
-        auto& slider = parent->add<GUI::HorizontalSlider>();
-        slider.set_range(0, 100);
-        slider.set_value(50);
-        return slider;
-    }
-    case VBWidgetType::GCheckBox: {
-        auto& box = parent->add<GUI::CheckBox>();
-        box.set_text("checkbox_1");
-        return box;
-    }
-    case VBWidgetType::GRadioButton:
-        return parent->add<GUI::RadioButton>("radio_1");
-    default:
-        ASSERT_NOT_REACHED();
-        return nullptr;
-    }
-}
-
-RefPtr<GUI::Widget> VBWidgetRegistry::build_gwidget(VBWidget& widget, VBWidgetType type, GUI::Widget* parent, NonnullOwnPtrVector<VBProperty>& properties)
-{
-    auto gwidget = ::build_gwidget(type, parent);
-    auto property = make<VBProperty>(widget, "class", to_class_name(type));
-    property->set_readonly(true);
-    properties.append(move(property));
-    return gwidget;
-}
diff --git a/DevTools/VisualBuilder/VBWidgetRegistry.h b/DevTools/VisualBuilder/VBWidgetRegistry.h
deleted file mode 100644
index bea285bb29..0000000000
--- a/DevTools/VisualBuilder/VBWidgetRegistry.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- *    list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#pragma once
-
-#include "VBWidgetType.h"
-#include <AK/HashMap.h>
-#include <AK/NonnullOwnPtrVector.h>
-#include <AK/OwnPtr.h>
-#include <AK/String.h>
-#include <LibGUI/Widget.h>
-
-class VBProperty;
-class VBWidget;
-
-class VBWidgetRegistry {
-public:
-    template<typename Callback>
-    static void for_each_widget_type(Callback callback)
-    {
-        for (unsigned i = 1; i < (unsigned)VBWidgetType::__Count; ++i)
-            callback((VBWidgetType)i);
-    }
-
-    static RefPtr<GUI::Widget> build_gwidget(VBWidget&, VBWidgetType, GUI::Widget* parent, NonnullOwnPtrVector<VBProperty>&);
-};
-
-String to_class_name(VBWidgetType);
-VBWidgetType widget_type_from_class_name(const StringView&);
diff --git a/DevTools/VisualBuilder/VBWidgetType.h b/DevTools/VisualBuilder/VBWidgetType.h
deleted file mode 100644
index 1507326cb8..0000000000
--- a/DevTools/VisualBuilder/VBWidgetType.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- *    list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#pragma once
-
-enum class VBWidgetType {
-    None = 0,
-    GWidget,
-    GButton,
-    GLabel,
-    GSpinBox,
-    GTextEditor,
-    GProgressBar,
-    GCheckBox,
-    GRadioButton,
-    GScrollBar,
-    GGroupBox,
-    GSlider,
-    __Count
-};
diff --git a/DevTools/VisualBuilder/main.cpp b/DevTools/VisualBuilder/main.cpp
deleted file mode 100644
index c4829e6e14..0000000000
--- a/DevTools/VisualBuilder/main.cpp
+++ /dev/null
@@ -1,195 +0,0 @@
-/*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- *    list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "VBForm.h"
-#include "VBPropertiesWindow.h"
-#include "VBWidget.h"
-#include "VBWidgetPropertyModel.h"
-#include <LibGUI/AboutDialog.h>
-#include <LibGUI/Action.h>
-#include <LibGUI/Application.h>
-#include <LibGUI/BoxLayout.h>
-#include <LibGUI/Button.h>
-#include <LibGUI/Menu.h>
-#include <LibGUI/MenuBar.h>
-#include <LibGUI/TableView.h>
-#include <LibGUI/Widget.h>
-#include <LibGUI/Window.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <stdio.h>
-#include <unistd.h>
-
-static RefPtr<GUI::Window> make_toolbox_window();
-
-int main(int argc, char** argv)
-{
-    auto app = GUI::Application::construct(argc, argv);
-
-    auto propbox = VBPropertiesWindow::construct();
-
-    auto form1 = VBForm::construct("Form1");
-    form1->on_widget_selected = [&](VBWidget* widget) {
-        propbox->table_view().set_model(widget ? &widget->property_model() : nullptr);
-    };
-
-    auto menubar = GUI::MenuBar::construct();
-    auto& app_menu = menubar->add_menu("Visual Builder");
-    app_menu.add_action(GUI::CommonActions::make_quit_action([](auto&) {
-        GUI::Application::the()->quit();
-        return;
-    }));
-
-    auto& file_menu = menubar->add_menu("File");
-    file_menu.add_action(GUI::Action::create("Dump Form", [&](auto&) {
-        form1->dump();
-    }));
-    file_menu.add_action(GUI::Action::create("Save Form...", { Mod_Ctrl, Key_S }, [&](auto&) {
-        form1->write_to_file("/tmp/form.frm");
-    }));
-
-    auto window = GUI::Window::construct();
-    window->set_title(form1->name());
-    window->set_rect(120, 200, 640, 400);
-    window->set_main_widget(form1);
-    window->set_icon(Gfx::Bitmap::load_from_file("/res/icons/16x16/app-visual-builder.png"));
-
-    window->show();
-
-    auto& help_menu = menubar->add_menu("Help");
-    help_menu.add_action(GUI::Action::create("About", [&](auto&) {
-        GUI::AboutDialog::show("Visual Builder", Gfx::Bitmap::load_from_file("/res/icons/32x32/app-visual-builder.png"), window);
-    }));
-
-    app->set_menubar(move(menubar));
-
-    auto toolbox = make_toolbox_window();
-    toolbox->show();
-
-    propbox->show();
-
-    if (argc == 2) {
-        form1->load_from_file(argv[1]);
-    }
-
-    return app->exec();
-}
-
-RefPtr<GUI::Window> make_toolbox_window()
-{
-    auto window = GUI::Window::construct();
-    window->set_title("Widgets");
-    window->set_rect(20, 200, 80, 300);
-    window->set_icon(Gfx::Bitmap::load_from_file("/res/icons/16x16/app-visual-builder.png"));
-
-    auto& widget = window->set_main_widget<GUI::Widget>();
-    widget.set_fill_with_background_color(true);
-    widget.set_layout<GUI::VerticalBoxLayout>();
-    widget.layout()->set_spacing(0);
-
-    auto& label_button = widget.add<GUI::Button>();
-    label_button.set_button_style(Gfx::ButtonStyle::CoolBar);
-    label_button.set_tooltip("GLabel");
-    label_button.set_icon(Gfx::Bitmap::load_from_file("/res/icons/visualbuilder/label.png"));
-    label_button.on_click = [](auto) {
-        if (auto* form = VBForm::current())
-            form->insert_widget(VBWidgetType::GLabel);
-    };
-
-    auto& button_button = widget.add<GUI::Button>();
-    button_button.set_button_style(Gfx::ButtonStyle::CoolBar);
-    button_button.set_tooltip("GButton");
-    button_button.set_icon(Gfx::Bitmap::load_from_file("/res/icons/visualbuilder/button.png"));
-    button_button.on_click = [](auto) {
-        if (auto* form = VBForm::current())
-            form->insert_widget(VBWidgetType::GButton);
-    };
-    auto& spinbox_button = widget.add<GUI::Button>();
-    spinbox_button.set_button_style(Gfx::ButtonStyle::CoolBar);
-    spinbox_button.set_tooltip("GSpinBox");
-    spinbox_button.set_icon(Gfx::Bitmap::load_from_file("/res/icons/visualbuilder/spinbox.png"));
-    spinbox_button.on_click = [](auto) {
-        if (auto* form = VBForm::current())
-            form->insert_widget(VBWidgetType::GSpinBox);
-    };
-    auto& editor_button = widget.add<GUI::Button>();
-    editor_button.set_button_style(Gfx::ButtonStyle::CoolBar);
-    editor_button.set_tooltip("GTextEditor");
-    editor_button.set_icon(Gfx::Bitmap::load_from_file("/res/icons/visualbuilder/textbox.png"));
-    editor_button.on_click = [](auto) {
-        if (auto* form = VBForm::current())
-            form->insert_widget(VBWidgetType::GTextEditor);
-    };
-    auto& progress_bar_button = widget.add<GUI::Button>();
-    progress_bar_button.set_button_style(Gfx::ButtonStyle::CoolBar);
-    progress_bar_button.set_tooltip("GProgressBar");
-    progress_bar_button.set_icon(Gfx::Bitmap::load_from_file("/res/icons/visualbuilder/progressbar.png"));
-    progress_bar_button.on_click = [](auto) {
-        if (auto* form = VBForm::current())
-            form->insert_widget(VBWidgetType::GProgressBar);
-    };
-    auto& slider_button = widget.add<GUI::Button>();
-    slider_button.set_button_style(Gfx::ButtonStyle::CoolBar);
-    slider_button.set_tooltip("GSlider");
-    slider_button.set_icon(Gfx::Bitmap::load_from_file("/res/icons/visualbuilder/slider.png"));
-    slider_button.on_click = [](auto) {
-        if (auto* form = VBForm::current())
-            form->insert_widget(VBWidgetType::GSlider);
-    };
-    auto& checkbox_button = widget.add<GUI::Button>();
-    checkbox_button.set_button_style(Gfx::ButtonStyle::CoolBar);
-    checkbox_button.set_tooltip("GCheckBox");
-    checkbox_button.set_icon(Gfx::Bitmap::load_from_file("/res/icons/visualbuilder/checkbox.png"));
-    checkbox_button.on_click = [](auto) {
-        if (auto* form = VBForm::current())
-            form->insert_widget(VBWidgetType::GCheckBox);
-    };
-    auto& radiobutton_button = widget.add<GUI::Button>();
-    radiobutton_button.set_button_style(Gfx::ButtonStyle::CoolBar);
-    radiobutton_button.set_tooltip("GRadioButton");
-    radiobutton_button.set_icon(Gfx::Bitmap::load_from_file("/res/icons/serenity/filled-radio-circle.png"));
-    radiobutton_button.on_click = [](auto) {
-        if (auto* form = VBForm::current())
-            form->insert_widget(VBWidgetType::GRadioButton);
-    };
-    auto& scrollbar_button = widget.add<GUI::Button>();
-    scrollbar_button.set_button_style(Gfx::ButtonStyle::CoolBar);
-    scrollbar_button.set_tooltip("GScrollBar");
-    scrollbar_button.set_icon(Gfx::Bitmap::load_from_file("/res/icons/visualbuilder/scrollbar.png"));
-    scrollbar_button.on_click = [](auto) {
-        if (auto* form = VBForm::current())
-            form->insert_widget(VBWidgetType::GScrollBar);
-    };
-    auto& groupbox_button = widget.add<GUI::Button>();
-    groupbox_button.set_button_style(Gfx::ButtonStyle::CoolBar);
-    groupbox_button.set_tooltip("GGroupBox");
-    groupbox_button.set_icon(Gfx::Bitmap::load_from_file("/res/icons/visualbuilder/groupbox.png"));
-    groupbox_button.on_click = [](auto) {
-        if (auto* form = VBForm::current())
-            form->insert_widget(VBWidgetType::GGroupBox);
-    };
-    return window;
-}