From 234746babb7a1adc8281bf24fd1fbe0f26b18340 Mon Sep 17 00:00:00 2001
From: zhenyan121 <3367366583@qq.com>
Date: Tue, 21 Jul 2026 19:51:04 +0800
Subject: [PATCH] feat(ui): add item slot tooltip and make window size static

---
 include/Cubed/ui/anchor.hpp      |  3 +++
 include/Cubed/ui/item_slot.hpp   |  5 ++++
 include/Cubed/ui/widget.hpp      |  7 ++---
 src/app.cpp                      |  2 +-
 src/debug_collector.cpp          |  3 +--
 src/ui/credits_ui.cpp            |  2 --
 src/ui/error_ui.cpp              |  2 --
 src/ui/host_game_ui.cpp          |  2 --
 src/ui/inventory_ui.cpp          |  4 +--
 src/ui/item_slot.cpp             | 45 ++++++++++++++++++++++++++++++++
 src/ui/join_game_ui.cpp          |  2 --
 src/ui/main_menu_ui_manager.cpp  |  4 ---
 src/ui/pause_menu_ui_manager.cpp |  3 ---
 src/ui/settings_ui.cpp           |  2 --
 src/ui/widget.cpp                | 18 +++++++++----
 src/ui/world_ui_manager.cpp      |  3 ---
 16 files changed, 73 insertions(+), 34 deletions(-)

diff --git a/include/Cubed/ui/anchor.hpp b/include/Cubed/ui/anchor.hpp
index 95fd298..4040a60 100644
--- a/include/Cubed/ui/anchor.hpp
+++ b/include/Cubed/ui/anchor.hpp
@@ -12,4 +12,7 @@ enum class Anchor {
     BOTTOM_LEFT,
     BOTTOM_CENTER,
     BOTTOM_RIGHT,
+
+    FOLLOW_MOUSE
+
 };
\ No newline at end of file
diff --git a/include/Cubed/ui/item_slot.hpp b/include/Cubed/ui/item_slot.hpp
index bb21ed2..50b4138 100644
--- a/include/Cubed/ui/item_slot.hpp
+++ b/include/Cubed/ui/item_slot.hpp
@@ -2,6 +2,7 @@
 
 #include "Cubed/gameplay/block.hpp"
 #include "Cubed/ui/image.hpp"
+#include "Cubed/ui/label.hpp"
 #include "Cubed/ui/widget.hpp"
 namespace Cubed {
 class TextureManager;
@@ -21,9 +22,13 @@ private:
     static constexpr const char* DEFAULT_SLOT_PATH = "texture/ui/slot.png";
     void on_render(Renderer& renderer) override;
     void on_update(float dt) override;
+    bool handle_mouse_move_event(const MouseMoveEvent& e) override;
+    bool handle_window_resize_event(const WindowResizeEvent& e) override;
     std::unique_ptr<Image> m_background;
     std::unique_ptr<Image> m_foreground;
+    std::unique_ptr<Label> m_label;
     BlockType m_block_type;
     float m_scale = 1.0f;
+    bool m_hovered = false;
 };
 } // namespace Cubed
\ No newline at end of file
diff --git a/include/Cubed/ui/widget.hpp b/include/Cubed/ui/widget.hpp
index d690a9a..afcd1a1 100644
--- a/include/Cubed/ui/widget.hpp
+++ b/include/Cubed/ui/widget.hpp
@@ -31,7 +31,7 @@ public:
     virtual void render(Renderer& renderer);
     virtual Widget& set_anchor(Anchor anchor);
     virtual Widget& set_offset(glm::ivec2 offset);
-    virtual Widget& set_window_size(int width, int height);
+    static void set_window_size(int width, int height);
     virtual Widget& set_visible(bool visible);
     // Returns the final display size
 
@@ -65,8 +65,8 @@ public:
 
 protected:
     Widget* m_parent = nullptr;
-    float m_window_height = 0.0f;
-    float m_window_width = 0.0f;
+    static inline float m_window_height = 0.0f;
+    static inline float m_window_width = 0.0f;
 
     // Center is at the top-left corner, position is at the top-left corner
     Anchor m_anchor = Anchor::TOP_LEFT;
@@ -99,6 +99,7 @@ private:
     */
     std::array<std::unique_ptr<Widget>, 4> m_border;
     TraversalOrder m_order = TraversalOrder::BACK_TO_FRONT;
+    glm::vec2 m_mouse_pos;
     float m_width = 0.0f;
     float m_height = 0.0f;
 };
diff --git a/src/app.cpp b/src/app.cpp
index bc38699..1abc51a 100644
--- a/src/app.cpp
+++ b/src/app.cpp
@@ -611,7 +611,7 @@ void App::handle_window_focus(bool focused) {
 }
 
 void App::handle_window_resize(int width, int height) {
-
+    Widget::set_window_size(width, height);
     dispatch_event(WindowResizeEvent{width, height});
     d_rep("window_size", "Window W: {} H: {}", width, height);
     Logger::info("Window Reshape W: {} H: {}", width, height);
diff --git a/src/debug_collector.cpp b/src/debug_collector.cpp
index 2162d9c..b5ad9f9 100644
--- a/src/debug_collector.cpp
+++ b/src/debug_collector.cpp
@@ -19,12 +19,11 @@ std::unique_ptr<DebugCollector>& DebugCollector::get_ptr() {
     return instance;
 }
 void DebugCollector::destory() { get_ptr().reset(); }
-void DebugCollector::init(int width, int height) {
+void DebugCollector::init(int, int) {
     constexpr float SCALE = 0.7f;
     constexpr Color COLOR = Color::GRAY;
     constexpr float ALPHA = 0.6f;
 
-    m_widget.set_window_size(width, height);
     m_widget.set_spacing(15);
     m_widget.set_anchor(Anchor::TOP_LEFT);
     m_widget.set_offset({0, 5});
diff --git a/src/ui/credits_ui.cpp b/src/ui/credits_ui.cpp
index 86b7649..8a7ddaf 100644
--- a/src/ui/credits_ui.cpp
+++ b/src/ui/credits_ui.cpp
@@ -13,14 +13,12 @@ namespace Cubed {
 CreditsUI::CreditsUI(CreditsScene& scene) : m_scene(scene) {}
 
 void CreditsUI::init() {
-    auto& renderer = m_scene.scene_manager().app().renderer();
 
     auto image = std::make_unique<Image>(nullptr);
     image
         ->set_image("texture/ui/background.png",
                     m_scene.scene_manager().app().texture_manager(), false)
         .set_anchor(Anchor::TOP_LEFT)
-        .set_window_size(renderer.window_width(), renderer.window_height())
         .set_fill_parent(true);
 
     auto& rect = image->add_child<Rect>();
diff --git a/src/ui/error_ui.cpp b/src/ui/error_ui.cpp
index 3b3b8f1..a9f649b 100644
--- a/src/ui/error_ui.cpp
+++ b/src/ui/error_ui.cpp
@@ -10,10 +10,8 @@ ErrorUI::ErrorUI(WorldScene& scene) : m_scene(scene) {}
 
 void ErrorUI::init() {
     auto bi = std::make_unique<Image>(nullptr);
-    auto& renderer = m_scene.scene_manager().app().renderer();
     auto& texture_manager = m_scene.scene_manager().app().texture_manager();
 
-    bi->set_window_size(renderer.window_width(), renderer.window_height());
     bi->set_anchor(Anchor::TOP_LEFT);
     bi->set_image("texture/ui/background.png", texture_manager, false);
     bi->set_fill_parent(true);
diff --git a/src/ui/host_game_ui.cpp b/src/ui/host_game_ui.cpp
index 0eae32d..960ce54 100644
--- a/src/ui/host_game_ui.cpp
+++ b/src/ui/host_game_ui.cpp
@@ -13,10 +13,8 @@ namespace Cubed {
 HostGameUI::HostGameUI(HostGameScene& scene) : m_scene(scene) {}
 void HostGameUI::init() {
     auto bi = std::make_unique<Image>(nullptr);
-    auto& renderer = m_scene.scene_manager().app().renderer();
     auto& texture_manager = m_scene.scene_manager().app().texture_manager();
 
-    bi->set_window_size(renderer.window_width(), renderer.window_height());
     bi->set_anchor(Anchor::TOP_LEFT);
     bi->set_image("texture/ui/background.png", texture_manager, false);
     bi->set_fill_parent(true);
diff --git a/src/ui/inventory_ui.cpp b/src/ui/inventory_ui.cpp
index f87154a..8f1e8fe 100644
--- a/src/ui/inventory_ui.cpp
+++ b/src/ui/inventory_ui.cpp
@@ -11,10 +11,8 @@ InventoryUI::InventoryUI(WorldScene& scene) : m_scene(scene) {}
 
 void InventoryUI::init() {
     auto back = std::make_unique<Rect>(nullptr);
-    auto& renderer = m_scene.scene_manager().app().renderer();
-    auto& texture_manager = m_scene.scene_manager().app().texture_manager();
 
-    back->set_window_size(renderer.window_width(), renderer.window_height());
+    auto& texture_manager = m_scene.scene_manager().app().texture_manager();
     back->set_anchor(Anchor::TOP_LEFT);
     back->set_color(Color::BLACK).set_alpha(0.7f);
     back->set_fill_parent(true);
diff --git a/src/ui/item_slot.cpp b/src/ui/item_slot.cpp
index 80f8e7b..78d685a 100644
--- a/src/ui/item_slot.cpp
+++ b/src/ui/item_slot.cpp
@@ -8,6 +8,10 @@ ItemSlot::ItemSlot(Widget* parent) : Widget(parent) {
     m_foreground->set_texture(nullptr, false).set_fill_parent(true);
     Widget::set_width(DEFAULT_WIDTH);
     Widget::set_height(DEFAULT_HEIGHT);
+    m_label = std::make_unique<Label>(this);
+    m_label->set_scale(0.6f);
+    m_label->set_anchor(Anchor::FOLLOW_MOUSE);
+    m_label->set_visible(false);
 }
 
 ItemSlot& ItemSlot::set_default_background(TextureManager& texture_manager) {
@@ -22,6 +26,7 @@ ItemSlot& ItemSlot::set_scale(float scale) {
 ItemSlot& ItemSlot::set_item(BlockType id, const Texture* texture) {
     m_foreground->set_texture(texture, false);
     m_block_type = id;
+    m_label->set_text(BlockManager::name_form_id(id));
     return *this;
 }
 float ItemSlot::width() const {
@@ -45,6 +50,9 @@ void ItemSlot::on_render(Renderer& renderer) {
     if (m_foreground) {
         m_foreground->render(renderer);
     }
+    if (m_label) {
+        m_label->render(renderer);
+    }
 }
 void ItemSlot::on_update(float dt) {
 
@@ -54,7 +62,44 @@ void ItemSlot::on_update(float dt) {
     if (m_foreground) {
         m_foreground->update(dt);
     }
+    if (m_label) {
+        m_label->update(dt);
+    }
     Widget::on_update(dt);
 }
 
+bool ItemSlot::handle_mouse_move_event(const MouseMoveEvent& e) {
+    auto p = pos();
+    if (e.xpos >= p.x && e.xpos <= p.x + width() && e.ypos >= p.y &&
+        e.ypos <= p.y + height()) {
+        m_hovered = true;
+        m_label->set_visible(true);
+    } else {
+        m_hovered = false;
+        m_label->set_visible(false);
+    }
+
+    if (m_label && m_label->handle_mouse_move_event(e)) {
+        return true;
+    }
+    if (m_foreground && m_foreground->handle_mouse_move_event(e)) {
+        return true;
+    }
+    if (m_background && m_background->handle_mouse_move_event(e)) {
+        return true;
+    }
+
+    return Widget::handle_mouse_move_event(e);
+}
+bool ItemSlot::handle_window_resize_event(const WindowResizeEvent& e) {
+    if (m_label && m_label->handle_window_resize_event(e)) {
+    }
+    if (m_foreground && m_foreground->handle_window_resize_event(e)) {
+    }
+    if (m_background && m_background->handle_window_resize_event(e)) {
+    }
+
+    return Widget::handle_window_resize_event(e);
+}
+
 } // namespace Cubed
\ No newline at end of file
diff --git a/src/ui/join_game_ui.cpp b/src/ui/join_game_ui.cpp
index 6548e9e..f759073 100644
--- a/src/ui/join_game_ui.cpp
+++ b/src/ui/join_game_ui.cpp
@@ -11,10 +11,8 @@ namespace Cubed {
 JoinGameUI::JoinGameUI(JoinGameScene& scene) : m_scene(scene) {}
 void JoinGameUI::init() {
     auto bi = std::make_unique<Image>(nullptr);
-    auto& renderer = m_scene.scene_manager().app().renderer();
     auto& texture_manager = m_scene.scene_manager().app().texture_manager();
 
-    bi->set_window_size(renderer.window_width(), renderer.window_height());
     bi->set_anchor(Anchor::TOP_LEFT);
     bi->set_image("texture/ui/background.png", texture_manager, false);
     bi->set_fill_parent(true);
diff --git a/src/ui/main_menu_ui_manager.cpp b/src/ui/main_menu_ui_manager.cpp
index 9acc0ce..7d63f16 100644
--- a/src/ui/main_menu_ui_manager.cpp
+++ b/src/ui/main_menu_ui_manager.cpp
@@ -2,7 +2,6 @@
 
 #include "Cubed/app.hpp"
 #include "Cubed/localization.hpp"
-#include "Cubed/render/renderer.hpp"
 #include "Cubed/scene/main_menu_scene.hpp"
 #include "Cubed/scene/scene_manager.hpp"
 #include "Cubed/ui/button.hpp"
@@ -21,13 +20,10 @@ void MainMenuUIManager::init() {
     image->set_fill_parent(true);
     image->set_anchor(Anchor::TOP_LEFT);
     image->set_image("texture/ui/background.png", texture_manager, false);
-    auto& renderer = m_scene.scene_manager().app().renderer();
-    image->set_window_size(renderer.window_width(), renderer.window_height());
 
     auto& layout = image->add_child<ColumnLayout>();
     layout.set_spacing(20);
     layout.set_anchor(Anchor::CENTER);
-    layout.set_window_size(renderer.window_width(), renderer.window_height());
     {
         auto& start_game_button = layout.add_child<Button>();
 
diff --git a/src/ui/pause_menu_ui_manager.cpp b/src/ui/pause_menu_ui_manager.cpp
index a4f9074..c7851c9 100644
--- a/src/ui/pause_menu_ui_manager.cpp
+++ b/src/ui/pause_menu_ui_manager.cpp
@@ -1,6 +1,5 @@
 #include "Cubed/app.hpp"
 #include "Cubed/localization.hpp"
-#include "Cubed/render/renderer.hpp"
 #include "Cubed/scene/scene_manager.hpp"
 #include "Cubed/scene/world_scene.hpp"
 #include "Cubed/ui/button.hpp"
@@ -16,8 +15,6 @@ void PauseMenuUIManager::init() {
     rect->set_color(Color::BLACK);
     rect->set_alpha(0.7f);
     rect->set_anchor(Anchor::TOP_LEFT);
-    auto& renderer = m_scene.scene_manager().app().renderer();
-    rect->set_window_size(renderer.window_width(), renderer.window_height());
     auto& texture_manager = m_scene.scene_manager().app().texture_manager();
     auto& layout = rect->add_child<ColumnLayout>();
     layout.set_anchor(Anchor::CENTER);
diff --git a/src/ui/settings_ui.cpp b/src/ui/settings_ui.cpp
index 7d666e9..0b3496e 100644
--- a/src/ui/settings_ui.cpp
+++ b/src/ui/settings_ui.cpp
@@ -15,10 +15,8 @@ namespace Cubed {
 SettingsUI::SettingsUI(SettingsScene& scene) : m_scene(scene) {}
 void SettingsUI::init() {
     auto bi = std::make_unique<Image>(nullptr);
-    auto& renderer = m_scene.scene_manager().app().renderer();
     auto& texture_manager = m_scene.scene_manager().app().texture_manager();
 
-    bi->set_window_size(renderer.window_width(), renderer.window_height());
     bi->set_anchor(Anchor::TOP_LEFT);
     bi->set_image("texture/ui/background.png", texture_manager, false);
     bi->set_fill_parent(true);
diff --git a/src/ui/widget.cpp b/src/ui/widget.cpp
index ea26055..85caab6 100644
--- a/src/ui/widget.cpp
+++ b/src/ui/widget.cpp
@@ -109,8 +109,16 @@ glm::vec2 Widget::compute_position() const {
     case Anchor::BOTTOM_RIGHT:
         pos = {parent_w - W, parent_h - H};
         break;
+    case Anchor::FOLLOW_MOUSE:
+        pos = m_mouse_pos;
+        if (pos.x + W > m_window_width) {
+            pos.x -= W;
+        }
+        if (pos.y + H > m_window_height) {
+            pos.y -= H;
+        }
     }
-    if (m_parent) {
+    if (m_parent && m_anchor != Anchor::FOLLOW_MOUSE) {
         pos += m_parent->pos();
     }
     pos += m_offset;
@@ -154,10 +162,10 @@ Widget& Widget::set_offset(glm::ivec2 offset) {
     m_offset = offset;
     return *this;
 }
-Widget& Widget::set_window_size(int width, int height) {
+void Widget::set_window_size(int width, int height) {
     m_window_height = height;
     m_window_width = width;
-    return *this;
+    return;
 }
 
 Widget& Widget::set_visible(bool visible) {
@@ -269,8 +277,6 @@ bool Widget::handle_mouse_wheel_event(const MouseWheelEvent& e) {
 }
 bool Widget::handle_window_resize_event(const WindowResizeEvent& e) {
 
-    set_window_size(e.width, e.height);
-
     if (m_order == TraversalOrder::BACK_TO_FRONT) {
         for (auto it = m_children.rbegin(); it != m_children.rend(); ++it) {
             if ((*it)->handle_window_resize_event(e)) {
@@ -288,6 +294,8 @@ bool Widget::handle_window_resize_event(const WindowResizeEvent& e) {
 }
 
 bool Widget::handle_mouse_move_event(const MouseMoveEvent& e) {
+    m_mouse_pos.x = e.xpos;
+    m_mouse_pos.y = e.ypos;
     if (m_order == TraversalOrder::BACK_TO_FRONT) {
         for (auto it = m_children.rbegin(); it != m_children.rend(); ++it) {
             if ((*it)->handle_mouse_move_event(e)) {
diff --git a/src/ui/world_ui_manager.cpp b/src/ui/world_ui_manager.cpp
index 8ade7cc..e0d8c06 100644
--- a/src/ui/world_ui_manager.cpp
+++ b/src/ui/world_ui_manager.cpp
@@ -17,10 +17,7 @@ void WorldUIManager::init() {
 
     m_root_widget = std::make_unique<Widget>(nullptr);
     m_root_widget->set_fill_parent(true);
-    auto& renderer = m_scene.scene_manager().app().renderer();
 
-    m_root_widget->set_window_size(renderer.window_width(),
-                                   renderer.window_height());
     auto& texture_manager = m_scene.scene_manager().app().texture_manager();
     auto& crosshair = m_root_widget->add_child<Image>();