feat(ui): add item slot tooltip and make window size static

include/Cubed/ui/anchor.hpp

@@ -12,4 +12,7 @@ enum class Anchor {
     BOTTOM_LEFT,
     BOTTOM_CENTER,
     BOTTOM_RIGHT,
+
+    FOLLOW_MOUSE
+
 };

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

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;
 };