diff --git a/main.pyw b/main.pyw
index a088e93..4c0eea0 100644
--- a/main.pyw
+++ b/main.pyw
@@ -12,7 +12,10 @@ class TestScene(Scene):
         super().__init__(window)
 
         self.add_widget(FPSDisplay)
-        self.add_widget(Text, text="Hello World !", x=0.5, y=0.5, anchor_x="center", anchor_y="center")
+        label = self.add_widget(Text, text="Hello World !", x=0.5, y=0.5, width=0.5, height=0.5, anchor_x="center", anchor_y="center")
+
+        label.on_pressed = lambda self, button, modifiers: print("pressed", self, button, modifiers)
+        label.on_release = lambda self, button, modifiers: print("release", self, button, modifiers)
 
 
 # Create a new window
diff --git a/source/gui/widget/abc/BoxWidget.py b/source/gui/widget/abc/BoxWidget.py
index 9868515..6707d06 100644
--- a/source/gui/widget/abc/BoxWidget.py
+++ b/source/gui/widget/abc/BoxWidget.py
@@ -3,6 +3,7 @@ from typing import TYPE_CHECKING, Optional
 
 from source.gui.widget.abc import Widget
 from source.type import Percentage
+from source.utils import in_bbox
 
 if TYPE_CHECKING:
     from source.gui.scene.abc import Scene
@@ -26,8 +27,11 @@ class BoxWidget(Widget, ABC):
         self.width = width
         self.height = height
 
+        self._hovering = False  # is the button currently hovered ?
+        self._clicking = False  # is the button currently clicked ?
+
     @property
-    def x(self):
+    def x(self) -> int:
         return self.scene.window.width * self._p_x
 
     @x.setter
@@ -35,7 +39,7 @@ class BoxWidget(Widget, ABC):
         self._p_x = x
 
     @property
-    def y(self):
+    def y(self) -> int:
         return self.scene.window.height * self._p_y
 
     @y.setter
@@ -43,7 +47,7 @@ class BoxWidget(Widget, ABC):
         self._p_y = y
 
     @property
-    def width(self):
+    def width(self) -> int:
         return None if self._p_width is None else self.scene.window.width * self._p_width
 
     @width.setter
@@ -51,7 +55,7 @@ class BoxWidget(Widget, ABC):
         self._p_width = width
 
     @property
-    def height(self):
+    def height(self) -> int:
         return None if self._p_height is None else self.scene.window.height * self._p_height
 
     @height.setter
@@ -59,13 +63,69 @@ class BoxWidget(Widget, ABC):
         self._p_height = height
 
     @property
-    def xy(self):
+    def xy(self) -> tuple[int, int]:
         return self.x, self.y
 
     @property
-    def size(self):
+    def size(self) -> tuple[int, int]:
         return self.width, self.height
 
     @property
-    def bbox(self):
+    def bbox(self) -> tuple[int, int, int, int]:
         return self.x, self.y, self.width, self.height
+
+    # event
+
+    def on_mouse_motion(self, x: int, y: int, dx: int, dy: int):  # NOQA
+        """
+        When the mouse is moved, this event is triggered.
+        Allow the implementation of the on_hover_enter and on_hover_leave events
+        :x: the x position of the mouse
+        :y: the y position of the mouse
+        :dx: the difference of the x mouse axis
+        :dy: the difference of the y mouse axis
+        """
+
+        old_hovering = self._hovering
+        self._hovering = in_bbox((x, y), self.bbox)
+
+        if old_hovering != self._hovering:  # if the hover changed
+            if self._hovering: self.on_hover_enter()  # call the hover enter event
+            else: self.on_hover_leave()  # call the hover leave event
+
+    def on_hover_enter(self):
+        """
+        This event is called when the mouse enter the bbox of the widget
+        """
+
+    def on_hover_leave(self):
+        """
+        This event is called when the mouse leave the bbox of the widget
+        """
+
+    def on_mouse_press(self, x: int, y: int, button: int, modifiers: int):
+        # if this button was the one hovered when the click was pressed
+        if not in_bbox((x, y), self.bbox): return
+
+        self._clicking = True
+
+        self.on_press(button, modifiers)
+
+    def on_mouse_release(self, x: int, y: int, button: int, modifiers: int):
+        old_click: bool = self._clicking
+        self._clicking = False
+
+        if not in_bbox((x, y), self.bbox): return
+
+        # if this button was the one hovered when the click was pressed
+        if old_click: self.on_release(button, modifiers)
+
+    def on_press(self, button: int, modifiers: int):
+        """
+        This event is called when the bbox is pressed
+        """
+
+    def on_release(self, button: int, modifiers: int):
+        """
+        This event is called when the bbox is released
+        """
\ No newline at end of file