From 85f7febd302a2ad3e0fa5b7e935e20c2fae178f1 Mon Sep 17 00:00:00 2001
From: MihailRis <mexaruc@gmail.com>
Date: Sat, 20 Apr 2024 21:48:26 +0300
Subject: [PATCH] graphics/ui/elements/containers deleted

---
 src/frontend/InventoryView.cpp          |   1 -
 src/frontend/InventoryView.h            |   2 +-
 src/frontend/UiDocument.cpp             |   1 -
 src/frontend/hud.cpp                    |   2 +-
 src/frontend/menu/menu.cpp              |   2 +-
 src/frontend/screens.cpp                |   2 +-
 src/graphics/ui/GUI.cpp                 |   2 +-
 src/graphics/ui/elements/Container.cpp  | 152 +++++++++++
 src/graphics/ui/elements/Container.hpp  |  39 +++
 src/graphics/ui/elements/Menu.cpp       |  93 +++++++
 src/graphics/ui/elements/Menu.hpp       |  60 +++++
 src/graphics/ui/elements/Panel.cpp      |  99 +++++++
 src/graphics/ui/elements/Panel.hpp      |  40 +++
 src/graphics/ui/elements/UINode.cpp     |   2 +-
 src/graphics/ui/elements/commons.hpp    |  20 ++
 src/graphics/ui/elements/containers.cpp | 342 ------------------------
 src/graphics/ui/elements/containers.h   | 142 ----------
 src/graphics/ui/elements/controls.h     |   2 +-
 src/graphics/ui/gui_util.cpp            |   2 +-
 src/graphics/ui/gui_xml.cpp             |   2 +-
 src/logic/scripting/lua/libgui.cpp      |   2 +
 21 files changed, 514 insertions(+), 495 deletions(-)
 create mode 100644 src/graphics/ui/elements/Container.cpp
 create mode 100644 src/graphics/ui/elements/Container.hpp
 create mode 100644 src/graphics/ui/elements/Menu.cpp
 create mode 100644 src/graphics/ui/elements/Menu.hpp
 create mode 100644 src/graphics/ui/elements/Panel.cpp
 create mode 100644 src/graphics/ui/elements/Panel.hpp
 create mode 100644 src/graphics/ui/elements/commons.hpp
 delete mode 100644 src/graphics/ui/elements/containers.cpp
 delete mode 100644 src/graphics/ui/elements/containers.h

diff --git a/src/frontend/InventoryView.cpp b/src/frontend/InventoryView.cpp
index e45bf0a7..99d7722f 100644
--- a/src/frontend/InventoryView.cpp
+++ b/src/frontend/InventoryView.cpp
@@ -11,7 +11,6 @@
 #include "../graphics/core/GfxContext.h"
 #include "../graphics/core/Shader.h"
 #include "../graphics/render/BlocksPreview.h"
-#include "../graphics/ui/elements/containers.h"
 #include "../graphics/ui/elements/controls.h"
 #include "../items/Inventories.h"
 #include "../items/Inventory.h"
diff --git a/src/frontend/InventoryView.h b/src/frontend/InventoryView.h
index fd82d175..8cc76a03 100644
--- a/src/frontend/InventoryView.h
+++ b/src/frontend/InventoryView.h
@@ -6,7 +6,7 @@
 #include <glm/glm.hpp>
 
 #include "../graphics/ui/elements/UINode.h"
-#include "../graphics/ui/elements/containers.h"
+#include "../graphics/ui/elements/Container.hpp"
 #include "../graphics/ui/elements/controls.h"
 #include "../items/ItemStack.h"
 #include "../typedefs.h"
diff --git a/src/frontend/UiDocument.cpp b/src/frontend/UiDocument.cpp
index 4ebfcbd2..f31d1706 100644
--- a/src/frontend/UiDocument.cpp
+++ b/src/frontend/UiDocument.cpp
@@ -1,7 +1,6 @@
 #include "UiDocument.h"
 
 #include "../files/files.h"
-#include "../graphics/ui/elements/containers.h"
 #include "../graphics/ui/elements/UINode.h"
 #include "../graphics/ui/gui_xml.h"
 #include "../logic/scripting/scripting.h"
diff --git a/src/frontend/hud.cpp b/src/frontend/hud.cpp
index 9f379df9..d5c14111 100644
--- a/src/frontend/hud.cpp
+++ b/src/frontend/hud.cpp
@@ -15,9 +15,9 @@
 #include "../graphics/core/Texture.h"
 #include "../graphics/render/BlocksPreview.h"
 #include "../graphics/render/WorldRenderer.h"
-#include "../graphics/ui/elements/containers.h"
 #include "../graphics/ui/elements/controls.h"
 #include "../graphics/ui/elements/UINode.h"
+#include "../graphics/ui/elements/Menu.hpp"
 #include "../graphics/ui/elements/Plotter.hpp"
 #include "../graphics/ui/GUI.h"
 #include "../items/Inventories.h"
diff --git a/src/frontend/menu/menu.cpp b/src/frontend/menu/menu.cpp
index ab3912e0..5c11b629 100644
--- a/src/frontend/menu/menu.cpp
+++ b/src/frontend/menu/menu.cpp
@@ -11,7 +11,7 @@
 #include "../../interfaces/Task.h"
 #include "../../graphics/ui/GUI.h"
 #include "../../graphics/ui/gui_util.h"
-#include "../../graphics/ui/elements/containers.h"
+#include "../../graphics/ui/elements/Menu.hpp"
 #include "../../graphics/ui/elements/controls.h"
 #include "../screens.h"
 #include "../UiDocument.h"
diff --git a/src/frontend/screens.cpp b/src/frontend/screens.cpp
index 87dfa75c..5f3cbee3 100644
--- a/src/frontend/screens.cpp
+++ b/src/frontend/screens.cpp
@@ -10,7 +10,7 @@
 #include "../graphics/core/Shader.h"
 #include "../graphics/core/TextureAnimation.h"
 #include "../graphics/render/WorldRenderer.h"
-#include "../graphics/ui/elements/containers.h"
+#include "../graphics/ui/elements/Menu.hpp"
 #include "../graphics/ui/GUI.h"
 #include "../logic/ChunksController.h"
 #include "../logic/LevelController.h"
diff --git a/src/graphics/ui/GUI.cpp b/src/graphics/ui/GUI.cpp
index b8529be5..4799d344 100644
--- a/src/graphics/ui/GUI.cpp
+++ b/src/graphics/ui/GUI.cpp
@@ -1,6 +1,6 @@
 #include "GUI.h"
 #include "elements/UINode.h"
-#include "elements/containers.h"
+#include "elements/Menu.hpp"
 
 #include <iostream>
 #include <algorithm>
diff --git a/src/graphics/ui/elements/Container.cpp b/src/graphics/ui/elements/Container.cpp
new file mode 100644
index 00000000..3eb5fd60
--- /dev/null
+++ b/src/graphics/ui/elements/Container.cpp
@@ -0,0 +1,152 @@
+#include "Container.hpp"
+
+#include "../../core/GfxContext.h"
+#include "../../core/Batch2D.h"
+
+using namespace gui;
+
+Container::Container(glm::vec2 size) : UINode(size) {
+    actualLength = size.y;
+    setColor(glm::vec4());
+}
+
+std::shared_ptr<UINode> Container::getAt(glm::vec2 pos, std::shared_ptr<UINode> self) {
+    if (!interactive) {
+        return nullptr;
+    }
+    if (!isInside(pos)) return nullptr;
+
+    for (int i = nodes.size()-1; i >= 0; i--) {
+        auto& node = nodes[i];
+        if (!node->isVisible())
+            continue;
+        auto hover = node->getAt(pos, node);
+        if (hover != nullptr) {
+            return hover;
+        }
+    }
+    return UINode::getAt(pos, self);
+}
+
+void Container::act(float delta) {
+    for (auto node : nodes) {
+        if (node->isVisible()) {
+            node->act(delta);
+        }
+    }
+    for (IntervalEvent& event : intervalEvents) {
+        event.timer += delta;
+        if (event.timer > event.interval) {
+            event.callback();
+            event.timer = fmod(event.timer, event.interval);
+            if (event.repeat > 0) {
+                event.repeat--;
+            }
+        }
+    }
+    intervalEvents.erase(std::remove_if(
+        intervalEvents.begin(), intervalEvents.end(),
+        [](const IntervalEvent& event) {
+            return event.repeat == 0;
+        }
+    ), intervalEvents.end());
+}
+
+void Container::scrolled(int value) {
+    int diff = (actualLength-getSize().y);
+    if (scroll < 0 && diff <= 0) {
+        scroll = 0;
+    }
+    if (diff > 0 && scrollable) {
+        scroll += value * scrollStep;
+        if (scroll > 0)
+            scroll = 0;
+        if (-scroll > diff) {
+            scroll = -diff;
+        }
+    } else if (parent) {
+        parent->scrolled(value);
+    }
+}
+
+void Container::setScrollable(bool flag) {
+    scrollable = flag;
+}
+
+void Container::draw(const GfxContext* pctx, Assets* assets) {
+    glm::vec2 pos = calcPos();
+    glm::vec2 size = getSize();
+    drawBackground(pctx, assets);
+
+    auto batch = pctx->getBatch2D();
+    batch->texture(nullptr);
+    batch->flush();
+    {
+        GfxContext ctx = pctx->sub();
+        ctx.setScissors(glm::vec4(pos.x, pos.y, size.x, size.y));
+        for (auto node : nodes) {
+            if (node->isVisible())
+                node->draw(pctx, assets);
+        }
+    }
+}
+
+void Container::drawBackground(const GfxContext* pctx, Assets* assets) {
+    glm::vec4 color = isPressed() ? pressedColor : (hover ? hoverColor : this->color);
+    if (color.a <= 0.001f)
+        return;
+    glm::vec2 pos = calcPos();
+
+    auto batch = pctx->getBatch2D();
+    batch->texture(nullptr);
+    batch->setColor(color);
+    batch->rect(pos.x, pos.y, size.x, size.y);
+}
+
+void Container::add(std::shared_ptr<UINode> node) {
+    nodes.push_back(node);
+    node->setParent(this);
+    node->reposition();
+    refresh();
+}
+
+void Container::add(std::shared_ptr<UINode> node, glm::vec2 pos) {
+    node->setPos(pos);
+    add(node);
+}
+
+void Container::remove(std::shared_ptr<UINode> selected) {
+    selected->setParent(nullptr);
+    nodes.erase(std::remove_if(nodes.begin(), nodes.end(), 
+        [selected](const std::shared_ptr<UINode> node) {
+            return node == selected;
+        }
+    ), nodes.end());
+    refresh();
+}
+
+void Container::listenInterval(float interval, ontimeout callback, int repeat) {
+    intervalEvents.push_back({callback, interval, 0.0f, repeat});
+}
+
+void Container::setSize(glm::vec2 size) {
+    if (size == getSize()) {
+        refresh();
+        return;
+    }
+    UINode::setSize(size);
+    refresh();
+    for (auto& node : nodes) {
+        node->reposition();
+    }
+}
+
+void Container::refresh() {
+    std::stable_sort(nodes.begin(), nodes.end(), [](const auto& a, const auto& b) {
+        return a->getZIndex() < b->getZIndex();
+    });
+}
+
+const std::vector<std::shared_ptr<UINode>>& Container::getNodes() const {
+    return nodes;
+}
diff --git a/src/graphics/ui/elements/Container.hpp b/src/graphics/ui/elements/Container.hpp
new file mode 100644
index 00000000..f23c2e2e
--- /dev/null
+++ b/src/graphics/ui/elements/Container.hpp
@@ -0,0 +1,39 @@
+#ifndef GRAPHICS_UI_ELEMENTS_CONTAINER_HPP_
+#define GRAPHICS_UI_ELEMENTS_CONTAINER_HPP_
+
+#include "UINode.h"
+#include "commons.hpp"
+
+#include <vector>
+
+namespace gui {
+    class Container : public UINode {
+    protected:
+        std::vector<std::shared_ptr<UINode>> nodes;
+        std::vector<IntervalEvent> intervalEvents;
+        int scroll = 0;
+        int scrollStep = 40;
+        int actualLength = 0;
+        bool scrollable = true;
+    public:
+        Container(glm::vec2 size);
+
+        virtual void act(float delta) override;
+        virtual void drawBackground(const GfxContext* pctx, Assets* assets);
+        virtual void draw(const GfxContext* pctx, Assets* assets) override;
+        virtual std::shared_ptr<UINode> getAt(glm::vec2 pos, std::shared_ptr<UINode> self) override;
+        virtual void add(std::shared_ptr<UINode> node);
+        virtual void add(std::shared_ptr<UINode> node, glm::vec2 pos);
+        virtual void remove(std::shared_ptr<UINode> node);
+        virtual void scrolled(int value) override;
+        virtual void setScrollable(bool flag);
+        void listenInterval(float interval, ontimeout callback, int repeat=-1);
+        virtual glm::vec2 contentOffset() override {return glm::vec2(0.0f, scroll);};
+        virtual void setSize(glm::vec2 size) override;
+        virtual void refresh() override;
+
+        const std::vector<std::shared_ptr<UINode>>& getNodes() const;
+    };
+}
+
+#endif // GRAPHICS_UI_ELEMENTS_CONTAINER_HPP_
diff --git a/src/graphics/ui/elements/Menu.cpp b/src/graphics/ui/elements/Menu.cpp
new file mode 100644
index 00000000..05fa1aaf
--- /dev/null
+++ b/src/graphics/ui/elements/Menu.cpp
@@ -0,0 +1,93 @@
+#include "Menu.hpp"
+
+#include <stdexcept>
+
+using namespace gui;
+
+Menu::Menu() : Container(glm::vec2(1)){
+}
+
+bool Menu::has(const std::string& name) {
+    return pages.find(name) != pages.end() ||
+           pageSuppliers.find(name) != pageSuppliers.end();
+}
+
+void Menu::addPage(std::string name, std::shared_ptr<UINode> panel) {
+    pages[name] = Page{name, panel};
+}
+
+void Menu::addSupplier(std::string name, supplier<std::shared_ptr<UINode>> pageSupplier) {
+    pageSuppliers[name] = pageSupplier;
+}
+
+std::shared_ptr<UINode> Menu::fetchPage(const std::string& name) {
+    auto found = pages.find(name);
+    if (found == pages.end()) {
+        auto supplier = pageSuppliers.find(name);
+        if (supplier == pageSuppliers.end()) {
+            if (pagesLoader) {
+                return pagesLoader(name);
+            }
+            return nullptr;
+        } else {
+            return supplier->second();
+            // supplied pages caching is not implemented
+        }
+    } else {
+        return found->second.panel;
+    }
+}
+
+void Menu::setPage(std::string name, bool history) {
+    Page page {name, fetchPage(name)};
+    if (page.panel == nullptr) {
+        throw std::runtime_error("no page found");
+    }
+    setPage(page, history);
+}
+
+void Menu::setPage(Page page, bool history) {
+    if (current.panel) {
+        Container::remove(current.panel);
+    }
+    if (history) {
+        pageStack.push(current);
+    }
+    current = page;
+    Container::add(current.panel);
+    setSize(current.panel->getSize());
+}
+
+void Menu::back() {
+    if (pageStack.empty())
+        return;
+    Page page = pageStack.top();
+    pageStack.pop();
+    
+    auto updated = fetchPage(page.name);
+    if (updated) {
+        page.panel = updated;
+    }
+
+    setPage(page, false);
+}
+
+void Menu::setPageLoader(page_loader_func loader) {
+    pagesLoader = loader;
+}
+
+Page& Menu::getCurrent() {
+    return current;
+}
+
+void Menu::clearHistory() {
+    pageStack = std::stack<Page>();
+}
+
+void Menu::reset() {
+    clearHistory();
+    if (current.panel) {
+        Container::remove(current.panel);
+        current = Page{"", nullptr};
+    }
+}
diff --git a/src/graphics/ui/elements/Menu.hpp b/src/graphics/ui/elements/Menu.hpp
new file mode 100644
index 00000000..d0af54a8
--- /dev/null
+++ b/src/graphics/ui/elements/Menu.hpp
@@ -0,0 +1,60 @@
+#ifndef GRAPHICS_UI_ELEMENTS_MENU_HPP_
+#define GRAPHICS_UI_ELEMENTS_MENU_HPP_
+
+#include "Container.hpp"
+
+#include <stack>
+
+namespace gui {
+    struct Page {
+        std::string name;
+        std::shared_ptr<UINode> panel = nullptr;
+    };
+
+    using page_loader_func = std::function<std::shared_ptr<UINode>(const std::string& name)>;
+
+    class Menu : public Container {
+    protected:
+        std::unordered_map<std::string, Page> pages;
+        std::stack<Page> pageStack;
+        Page current;
+        std::unordered_map<std::string, supplier<std::shared_ptr<UINode>>> pageSuppliers;
+        page_loader_func pagesLoader = nullptr;
+    public:
+        Menu();
+
+        /// @brief Check menu have page or page supplier
+        /// @param name page name
+        bool has(const std::string& name);
+
+        /// @brief Set current page to specified one.
+        /// @param name page or page supplier name
+        /// @param history previous page will not be saved in history if false
+        void setPage(std::string name, bool history=true);
+        void setPage(Page page, bool history=true);
+        void addPage(std::string name, std::shared_ptr<UINode> panel);
+        std::shared_ptr<UINode> fetchPage(const std::string& name);
+
+        /// @brief Add page supplier used if page is not found
+        /// @param name page name
+        /// @param pageSupplier page supplier function
+        void addSupplier(std::string name, supplier<std::shared_ptr<UINode>> pageSupplier);
+
+        /// @brief Page loader is called if accessed page is not found 
+        void setPageLoader(page_loader_func loader);
+
+        /// @brief Set page to previous saved in history
+        void back();
+
+        /// @brief Clear pages history
+        void clearHistory();
+
+        /// @brief Clear history and remove and set page to null
+        void reset();
+    
+        /// @brief Get current page
+        Page& getCurrent();
+    };
+}
+
+#endif // GRAPHICS_UI_ELEMENTS_MENU_HPP_
diff --git a/src/graphics/ui/elements/Panel.cpp b/src/graphics/ui/elements/Panel.cpp
new file mode 100644
index 00000000..2cf1c432
--- /dev/null
+++ b/src/graphics/ui/elements/Panel.cpp
@@ -0,0 +1,99 @@
+#include "Panel.hpp"
+
+using namespace gui;
+
+Panel::Panel(glm::vec2 size, glm::vec4 padding, float interval)
+  : Container(size), 
+    padding(padding), 
+    interval(interval) 
+{
+    setColor(glm::vec4(0.0f, 0.0f, 0.0f, 0.75f));
+}
+
+Panel::~Panel() {
+}
+
+void Panel::setMaxLength(int value) {
+    maxLength = value;
+}
+
+int Panel::getMaxLength() const {
+    return maxLength;
+}
+
+void Panel::setPadding(glm::vec4 padding) {
+    this->padding = padding;
+    refresh();
+}
+
+glm::vec4 Panel::getPadding() const {
+    return padding;
+}
+
+void Panel::cropToContent() {
+    if (maxLength > 0.0f) {
+        setSize(glm::vec2(getSize().x, glm::min(maxLength, actualLength)));
+    } else {
+        setSize(glm::vec2(getSize().x, actualLength));
+    }
+}
+
+void Panel::fullRefresh() {
+    refresh();
+    cropToContent();
+    Container::fullRefresh();
+}
+
+void Panel::add(std::shared_ptr<UINode> node) {
+    node->setResizing(true);
+    Container::add(node);
+    fullRefresh();
+}
+
+void Panel::refresh() {
+    UINode::refresh();
+    float x = padding.x;
+    float y = padding.y;
+    glm::vec2 size = getSize();
+    if (orientation == Orientation::vertical) {
+        float maxw = size.x;
+        for (auto& node : nodes) {
+            glm::vec2 nodesize = node->getSize();
+            const glm::vec4 margin = node->getMargin();
+            y += margin.y;
+            
+            float ex = x + margin.x;
+            node->setPos(glm::vec2(ex, y));
+            y += nodesize.y + margin.w + interval;
+
+            float width = size.x - padding.x - padding.z - margin.x - margin.z;
+            if (node->isResizing()) {
+                node->setSize(glm::vec2(width, nodesize.y));
+            }
+            node->refresh();
+            maxw = fmax(maxw, ex+node->getSize().x+margin.z+padding.z);
+        }
+        actualLength = y + padding.w;
+    } else {
+        float maxh = size.y;
+        for (auto& node : nodes) {
+            glm::vec2 nodesize = node->getSize();
+            const glm::vec4 margin = node->getMargin();
+            x += margin.x;
+            node->setPos(glm::vec2(x, y+margin.y));
+            x += nodesize.x + margin.z + interval;
+            
+            node->refresh();
+            maxh = fmax(maxh, y+margin.y+node->getSize().y+margin.w+padding.w);
+        }
+        actualLength = size.y;
+    }
+}
+
+void Panel::setOrientation(Orientation orientation) {
+    this->orientation = orientation;
+}
+
+Orientation Panel::getOrientation() const {
+    return orientation;
+}
diff --git a/src/graphics/ui/elements/Panel.hpp b/src/graphics/ui/elements/Panel.hpp
new file mode 100644
index 00000000..cde3b12a
--- /dev/null
+++ b/src/graphics/ui/elements/Panel.hpp
@@ -0,0 +1,40 @@
+#ifndef GRAPHICS_UI_ELEMENTS_PANEL_HPP_
+#define GRAPHICS_UI_ELEMENTS_PANEL_HPP_
+
+#include "commons.hpp"
+#include "Container.hpp"
+
+namespace gui {
+    class Panel : public Container {
+    protected:
+        Orientation orientation = Orientation::vertical;
+        glm::vec4 padding {2.0f};
+        float interval = 2.0f;
+        int maxLength = 0;
+    public:
+        Panel(
+            glm::vec2 size, 
+            glm::vec4 padding=glm::vec4(2.0f), 
+            float interval=2.0f
+        );
+        virtual ~Panel();
+
+        virtual void cropToContent();
+
+        virtual void setOrientation(Orientation orientation);
+        Orientation getOrientation() const;
+
+        virtual void add(std::shared_ptr<UINode> node) override;
+
+        virtual void refresh() override;
+        virtual void fullRefresh() override;
+
+        virtual void setMaxLength(int value);
+        int getMaxLength() const;
+
+        virtual void setPadding(glm::vec4 padding);
+        glm::vec4 getPadding() const;
+    };
+}
+
+#endif // GRAPHICS_UI_ELEMENTS_PANEL_HPP_
diff --git a/src/graphics/ui/elements/UINode.cpp b/src/graphics/ui/elements/UINode.cpp
index 3ea8501b..c3a7501c 100644
--- a/src/graphics/ui/elements/UINode.cpp
+++ b/src/graphics/ui/elements/UINode.cpp
@@ -1,6 +1,6 @@
 #include "UINode.h"
 
-#include "containers.h"
+#include "Container.hpp"
 #include "../../core/Batch2D.h"
 
 using gui::UINode;
diff --git a/src/graphics/ui/elements/commons.hpp b/src/graphics/ui/elements/commons.hpp
new file mode 100644
index 00000000..cdad6354
--- /dev/null
+++ b/src/graphics/ui/elements/commons.hpp
@@ -0,0 +1,20 @@
+#ifndef GRAPHICS_UI_ELEMENTS_COMMONS_HPP_
+#define GRAPHICS_UI_ELEMENTS_COMMONS_HPP_
+
+#include <functional>
+
+namespace gui {
+    enum class Orientation { vertical, horizontal };
+    
+    using ontimeout = std::function<void()>;
+
+    struct IntervalEvent {
+        ontimeout callback;
+        float interval;
+        float timer;
+        // -1 - infinity, 1 - one time event
+        int repeat;
+    };
+}
+
+#endif // GRAPHICS_UI_ELEMENTS_COMMONS_HPP_
diff --git a/src/graphics/ui/elements/containers.cpp b/src/graphics/ui/elements/containers.cpp
deleted file mode 100644
index edb4245d..00000000
--- a/src/graphics/ui/elements/containers.cpp
+++ /dev/null
@@ -1,342 +0,0 @@
-#include "containers.h"
-
-#include <stdexcept>
-#include <algorithm>
-
-#include "../../../window/Window.h"
-#include "../../../assets/Assets.h"
-#include "../../core/Batch2D.h"
-#include "../../core/GfxContext.h"
-
-using namespace gui;
-
-Container::Container(glm::vec2 size) : UINode(size) {
-    actualLength = size.y;
-    setColor(glm::vec4());
-}
-
-std::shared_ptr<UINode> Container::getAt(glm::vec2 pos, std::shared_ptr<UINode> self) {
-    if (!interactive) {
-        return nullptr;
-    }
-    if (!isInside(pos)) return nullptr;
-
-    for (int i = nodes.size()-1; i >= 0; i--) {
-        auto& node = nodes[i];
-        if (!node->isVisible())
-            continue;
-        auto hover = node->getAt(pos, node);
-        if (hover != nullptr) {
-            return hover;
-        }
-    }
-    return UINode::getAt(pos, self);
-}
-
-void Container::act(float delta) {
-    for (auto node : nodes) {
-        if (node->isVisible()) {
-            node->act(delta);
-        }
-    }
-    for (IntervalEvent& event : intervalEvents) {
-        event.timer += delta;
-        if (event.timer > event.interval) {
-            event.callback();
-            event.timer = fmod(event.timer, event.interval);
-            if (event.repeat > 0) {
-                event.repeat--;
-            }
-        }
-    }
-    intervalEvents.erase(std::remove_if(
-        intervalEvents.begin(), intervalEvents.end(),
-        [](const IntervalEvent& event) {
-            return event.repeat == 0;
-        }
-    ), intervalEvents.end());
-}
-
-void Container::scrolled(int value) {
-    int diff = (actualLength-getSize().y);
-    if (scroll < 0 && diff <= 0) {
-        scroll = 0;
-    }
-    if (diff > 0 && scrollable) {
-        scroll += value * scrollStep;
-        if (scroll > 0)
-            scroll = 0;
-        if (-scroll > diff) {
-            scroll = -diff;
-        }
-    } else if (parent) {
-        parent->scrolled(value);
-    }
-}
-
-void Container::setScrollable(bool flag) {
-    scrollable = flag;
-}
-
-void Container::draw(const GfxContext* pctx, Assets* assets) {
-    glm::vec2 pos = calcPos();
-    glm::vec2 size = getSize();
-    drawBackground(pctx, assets);
-
-    auto batch = pctx->getBatch2D();
-    batch->texture(nullptr);
-    batch->flush();
-    {
-        GfxContext ctx = pctx->sub();
-        ctx.setScissors(glm::vec4(pos.x, pos.y, size.x, size.y));
-        for (auto node : nodes) {
-            if (node->isVisible())
-                node->draw(pctx, assets);
-        }
-    }
-}
-
-void Container::drawBackground(const GfxContext* pctx, Assets* assets) {
-    glm::vec4 color = isPressed() ? pressedColor : (hover ? hoverColor : this->color);
-    if (color.a <= 0.001f)
-        return;
-    glm::vec2 pos = calcPos();
-
-    auto batch = pctx->getBatch2D();
-    batch->texture(nullptr);
-    batch->setColor(color);
-    batch->rect(pos.x, pos.y, size.x, size.y);
-}
-
-void Container::add(std::shared_ptr<UINode> node) {
-    nodes.push_back(node);
-    node->setParent(this);
-    node->reposition();
-    refresh();
-}
-
-void Container::add(std::shared_ptr<UINode> node, glm::vec2 pos) {
-    node->setPos(pos);
-    add(node);
-}
-
-void Container::remove(std::shared_ptr<UINode> selected) {
-    selected->setParent(nullptr);
-    nodes.erase(std::remove_if(nodes.begin(), nodes.end(), 
-        [selected](const std::shared_ptr<UINode> node) {
-            return node == selected;
-        }
-    ), nodes.end());
-    refresh();
-}
-
-void Container::listenInterval(float interval, ontimeout callback, int repeat) {
-    intervalEvents.push_back({callback, interval, 0.0f, repeat});
-}
-
-void Container::setSize(glm::vec2 size) {
-    if (size == getSize()) {
-        refresh();
-        return;
-    }
-    UINode::setSize(size);
-    refresh();
-    for (auto& node : nodes) {
-        node->reposition();
-    }
-}
-
-void Container::refresh() {
-    std::stable_sort(nodes.begin(), nodes.end(), [](const auto& a, const auto& b) {
-        return a->getZIndex() < b->getZIndex();
-    });
-}
-
-const std::vector<std::shared_ptr<UINode>>& Container::getNodes() const {
-    return nodes;
-}
-
-Panel::Panel(glm::vec2 size, glm::vec4 padding, float interval)
-  : Container(size), 
-    padding(padding), 
-    interval(interval) 
-{
-    setColor(glm::vec4(0.0f, 0.0f, 0.0f, 0.75f));
-}
-
-Panel::~Panel() {
-}
-
-void Panel::setMaxLength(int value) {
-    maxLength = value;
-}
-
-int Panel::getMaxLength() const {
-    return maxLength;
-}
-
-void Panel::setPadding(glm::vec4 padding) {
-    this->padding = padding;
-    refresh();
-}
-
-glm::vec4 Panel::getPadding() const {
-    return padding;
-}
-
-void Panel::cropToContent() {
-    if (maxLength > 0.0f) {
-        setSize(glm::vec2(getSize().x, glm::min(maxLength, actualLength)));
-    } else {
-        setSize(glm::vec2(getSize().x, actualLength));
-    }
-}
-
-void Panel::fullRefresh() {
-    refresh();
-    cropToContent();
-    Container::fullRefresh();
-}
-
-void Panel::add(std::shared_ptr<UINode> node) {
-    node->setResizing(true);
-    Container::add(node);
-    fullRefresh();
-}
-
-void Panel::refresh() {
-    UINode::refresh();
-    float x = padding.x;
-    float y = padding.y;
-    glm::vec2 size = getSize();
-    if (orientation == Orientation::vertical) {
-        float maxw = size.x;
-        for (auto& node : nodes) {
-            glm::vec2 nodesize = node->getSize();
-            const glm::vec4 margin = node->getMargin();
-            y += margin.y;
-            
-            float ex = x + margin.x;
-            node->setPos(glm::vec2(ex, y));
-            y += nodesize.y + margin.w + interval;
-
-            float width = size.x - padding.x - padding.z - margin.x - margin.z;
-            if (node->isResizing()) {
-                node->setSize(glm::vec2(width, nodesize.y));
-            }
-            node->refresh();
-            maxw = fmax(maxw, ex+node->getSize().x+margin.z+padding.z);
-        }
-        actualLength = y + padding.w;
-    } else {
-        float maxh = size.y;
-        for (auto& node : nodes) {
-            glm::vec2 nodesize = node->getSize();
-            const glm::vec4 margin = node->getMargin();
-            x += margin.x;
-            node->setPos(glm::vec2(x, y+margin.y));
-            x += nodesize.x + margin.z + interval;
-            
-            node->refresh();
-            maxh = fmax(maxh, y+margin.y+node->getSize().y+margin.w+padding.w);
-        }
-        actualLength = size.y;
-    }
-}
-
-void Panel::setOrientation(Orientation orientation) {
-    this->orientation = orientation;
-}
-
-Orientation Panel::getOrientation() const {
-    return orientation;
-}
-
-Menu::Menu() : Container(glm::vec2(1)){
-}
-
-bool Menu::has(const std::string& name) {
-    return pages.find(name) != pages.end() ||
-           pageSuppliers.find(name) != pageSuppliers.end();
-}
-
-void Menu::addPage(std::string name, std::shared_ptr<UINode> panel) {
-    pages[name] = Page{name, panel};
-}
-
-void Menu::addSupplier(std::string name, supplier<std::shared_ptr<UINode>> pageSupplier) {
-    pageSuppliers[name] = pageSupplier;
-}
-
-std::shared_ptr<UINode> Menu::fetchPage(const std::string& name) {
-    auto found = pages.find(name);
-    if (found == pages.end()) {
-        auto supplier = pageSuppliers.find(name);
-        if (supplier == pageSuppliers.end()) {
-            if (pagesLoader) {
-                return pagesLoader(name);
-            }
-            return nullptr;
-        } else {
-            return supplier->second();
-            // supplied pages caching is not implemented
-        }
-    } else {
-        return found->second.panel;
-    }
-}
-
-
-void Menu::setPage(std::string name, bool history) {
-    Page page {name, fetchPage(name)};
-    if (page.panel == nullptr) {
-        throw std::runtime_error("no page found");
-    }
-    setPage(page, history);
-}
-
-void Menu::setPage(Page page, bool history) {
-    if (current.panel) {
-        Container::remove(current.panel);
-    }
-    if (history) {
-        pageStack.push(current);
-    }
-    current = page;
-    Container::add(current.panel);
-    setSize(current.panel->getSize());
-}
-
-void Menu::back() {
-    if (pageStack.empty())
-        return;
-    Page page = pageStack.top();
-    pageStack.pop();
-    
-    auto updated = fetchPage(page.name);
-    if (updated) {
-        page.panel = updated;
-    }
-
-    setPage(page, false);
-}
-
-void Menu::setPageLoader(page_loader_func loader) {
-    pagesLoader = loader;
-}
-
-Page& Menu::getCurrent() {
-    return current;
-}
-
-void Menu::clearHistory() {
-    pageStack = std::stack<Page>();
-}
-
-void Menu::reset() {
-    clearHistory();
-    if (current.panel) {
-        Container::remove(current.panel);
-        current = Page{"", nullptr};
-    }
-}
diff --git a/src/graphics/ui/elements/containers.h b/src/graphics/ui/elements/containers.h
deleted file mode 100644
index 09496b0b..00000000
--- a/src/graphics/ui/elements/containers.h
+++ /dev/null
@@ -1,142 +0,0 @@
-#ifndef GRAPHICS_UI_ELEMENTS_CONTAINERS_H_
-#define GRAPHICS_UI_ELEMENTS_CONTAINERS_H_
-
-#include "UINode.h"
-#include "../../../delegates.h"
-
-#include <glm/glm.hpp>
-#include <vector>
-#include <stack>
-#include <string>
-#include <memory>
-
-class Batch2D;
-class Assets;
-
-namespace gui {
-    using ontimeout = std::function<void()>;
-
-    struct IntervalEvent {
-        ontimeout callback;
-        float interval;
-        float timer;
-        // -1 - infinity, 1 - one time event
-        int repeat;
-    };
-
-    enum class Orientation { vertical, horizontal };
-
-    class Container : public UINode {
-    protected:
-        std::vector<std::shared_ptr<UINode>> nodes;
-        std::vector<IntervalEvent> intervalEvents;
-        int scroll = 0;
-        int scrollStep = 40;
-        int actualLength = 0;
-        bool scrollable = true;
-    public:
-        Container(glm::vec2 size);
-
-        virtual void act(float delta) override;
-        virtual void drawBackground(const GfxContext* pctx, Assets* assets);
-        virtual void draw(const GfxContext* pctx, Assets* assets) override;
-        virtual std::shared_ptr<UINode> getAt(glm::vec2 pos, std::shared_ptr<UINode> self) override;
-        virtual void add(std::shared_ptr<UINode> node);
-        virtual void add(std::shared_ptr<UINode> node, glm::vec2 pos);
-        virtual void remove(std::shared_ptr<UINode> node);
-        virtual void scrolled(int value) override;
-        virtual void setScrollable(bool flag);
-        void listenInterval(float interval, ontimeout callback, int repeat=-1);
-        virtual glm::vec2 contentOffset() override {return glm::vec2(0.0f, scroll);};
-        virtual void setSize(glm::vec2 size) override;
-        virtual void refresh() override;
-
-        const std::vector<std::shared_ptr<UINode>>& getNodes() const;
-    };
-
-    class Panel : public Container {
-    protected:
-        Orientation orientation = Orientation::vertical;
-        glm::vec4 padding {2.0f};
-        float interval = 2.0f;
-        int maxLength = 0;
-    public:
-        Panel(
-            glm::vec2 size, 
-            glm::vec4 padding=glm::vec4(2.0f), 
-            float interval=2.0f
-        );
-        virtual ~Panel();
-
-        virtual void cropToContent();
-
-        virtual void setOrientation(Orientation orientation);
-        Orientation getOrientation() const;
-
-        virtual void add(std::shared_ptr<UINode> node) override;
-
-        virtual void refresh() override;
-        virtual void fullRefresh() override;
-
-        virtual void setMaxLength(int value);
-        int getMaxLength() const;
-
-        virtual void setPadding(glm::vec4 padding);
-        glm::vec4 getPadding() const;
-    };
-
-    struct Page {
-        std::string name;
-        std::shared_ptr<UINode> panel = nullptr;
-
-        ~Page() {
-            panel = nullptr;
-        }
-    };
-
-    using page_loader_func = std::function<std::shared_ptr<UINode>(const std::string& name)>;
-
-    class Menu : public Container {
-    protected:
-        std::unordered_map<std::string, Page> pages;
-        std::stack<Page> pageStack;
-        Page current;
-        std::unordered_map<std::string, supplier<std::shared_ptr<UINode>>> pageSuppliers;
-        page_loader_func pagesLoader = nullptr;
-    public:
-        Menu();
-
-        /// @brief Check menu have page or page supplier
-        /// @param name page name
-        bool has(const std::string& name);
-
-        /// @brief Set current page to specified one.
-        /// @param name page or page supplier name
-        /// @param history previous page will not be saved in history if false
-        void setPage(std::string name, bool history=true);
-        void setPage(Page page, bool history=true);
-        void addPage(std::string name, std::shared_ptr<UINode> panel);
-        std::shared_ptr<UINode> fetchPage(const std::string& name);
-
-        /// @brief Add page supplier used if page is not found
-        /// @param name page name
-        /// @param pageSupplier page supplier function
-        void addSupplier(std::string name, supplier<std::shared_ptr<UINode>> pageSupplier);
-
-        /// @brief Page loader is called if accessed page is not found 
-        void setPageLoader(page_loader_func loader);
-
-        /// @brief Set page to previous saved in history
-        void back();
-
-        /// @brief Clear pages history
-        void clearHistory();
-
-        /// @brief Clear history and remove and set page to null
-        void reset();
-    
-        /// @brief Get current page
-        Page& getCurrent();
-    };
-}
-#endif // GRAPHICS_UI_ELEMENTS_CONTAINERS_H_
diff --git a/src/graphics/ui/elements/controls.h b/src/graphics/ui/elements/controls.h
index 1e46a786..a0c8b9ef 100644
--- a/src/graphics/ui/elements/controls.h
+++ b/src/graphics/ui/elements/controls.h
@@ -11,7 +11,7 @@
 
 #include "../GUI.h"
 #include "UINode.h"
-#include "containers.h"
+#include "Panel.hpp"
 #include "../../../window/input.h"
 #include "../../../delegates.h"
 #include "../../../typedefs.h"
diff --git a/src/graphics/ui/gui_util.cpp b/src/graphics/ui/gui_util.cpp
index 25a41a37..cdbf4b2b 100644
--- a/src/graphics/ui/gui_util.cpp
+++ b/src/graphics/ui/gui_util.cpp
@@ -1,6 +1,6 @@
 #include "gui_util.h"
 #include "elements/controls.h"
-#include "elements/containers.h"
+#include "elements/Menu.hpp"
 #include "gui_xml.h"
 
 #include <glm/glm.hpp>
diff --git a/src/graphics/ui/gui_xml.cpp b/src/graphics/ui/gui_xml.cpp
index f0b0df9f..cd3c61e5 100644
--- a/src/graphics/ui/gui_xml.cpp
+++ b/src/graphics/ui/gui_xml.cpp
@@ -3,7 +3,7 @@
 #include <charconv>
 #include <stdexcept>
 
-#include "elements/containers.h"
+#include "elements/Panel.hpp"
 #include "elements/controls.h"
 
 #include "../../frontend/locale/langs.h"
diff --git a/src/logic/scripting/lua/libgui.cpp b/src/logic/scripting/lua/libgui.cpp
index 6326db85..05950450 100644
--- a/src/logic/scripting/lua/libgui.cpp
+++ b/src/logic/scripting/lua/libgui.cpp
@@ -10,6 +10,8 @@
 #include "../../../assets/Assets.h"
 #include "../../../graphics/ui/gui_util.h"
 #include "../../../graphics/ui/elements/UINode.h"
+#include "../../../graphics/ui/elements/Panel.hpp"
+#include "../../../graphics/ui/elements/Menu.hpp"
 #include "../../../graphics/ui/elements/controls.h"
 #include "../../../frontend/UiDocument.h"
 #include "../../../frontend/locale/langs.h"