Add image editing feature with drawing tools

- Added pencil edit button to player controls
- Created EditPopup with drawing layer for image annotation
- Drawing tools: color selection (red/blue/green/black), thickness control
- Features: undo last stroke, clear all strokes, save edited image
- Playback automatically pauses during editing
- Only images (.jpg, .jpeg, .png, .bmp) can be edited
- Edited images saved with '_edited' suffix in same directory
- Drawing layer with touch support for annotations
- Full toolbar with color, thickness, and action controls

src/edit_drowing.py

@@ -0,0 +1,100 @@
+Kiwy drawing
+
+from kivy.app import App
+from kivy.uix.boxlayout import BoxLayout
+from kivy.uix.image import Image
+from kivy.uix.button import Button
+from kivy.uix.widget import Widget
+from kivy.graphics import Color, Line
+from kivy.core.window import Window
+
+class DrawLayer(Widget):
+def init(self, **kwargs):
+super().init(**kwargs)
+self.strokes = [] # store all drawn lines
+self.current_color = (1, 0, 0) # default red
+self.current_width = 2 # default thickness
+self.drawing_enabled = False # drawing toggle
+
+
+def on_touch_down(self, touch):
+    if not self.drawing_enabled:
+        return False
+
+    with self.canvas:
+        Color(*self.current_color)
+        new_line = Line(points=[touch.x, touch.y], width=self.current_width)
+        self.strokes.append(new_line)
+    return True
+
+def on_touch_move(self, touch):
+    if self.strokes and self.drawing_enabled:
+        self.strokes[-1].points += [touch.x, touch.y]
+
+# ==========================
+# UNDO LAST LINE
+# ==========================
+def undo(self):
+    if self.strokes:
+        last = self.strokes.pop()
+        self.canvas.remove(last)
+
+# ==========================
+# CHANGE COLOR
+# ==========================
+def set_color(self, color_tuple):
+    self.current_color = color_tuple
+
+# ==========================
+# CHANGE LINE WIDTH
+# ==========================
+def set_thickness(self, value):
+    self.current_width = value
+class EditorUI(BoxLayout):
+def init(self, **kwargs):
+super().init(orientation="vertical", **kwargs)
+
+
+    # Background image
+    self.img = Image(source="graph.png", allow_stretch=True)
+    self.add_widget(self.img)
+
+    # Drawing layer above image
+    self.draw = DrawLayer()
+    self.add_widget(self.draw)
+
+    # Toolbar
+    toolbar = BoxLayout(size_hint_y=0.15)
+
+    toolbar.add_widget(Button(text="Draw On", on_press=self.toggle_draw))
+    toolbar.add_widget(Button(text="Red", on_press=lambda x: self.draw.set_color((1,0,0))))
+    toolbar.add_widget(Button(text="Blue", on_press=lambda x: self.draw.set_color((0,0,1))))
+    toolbar.add_widget(Button(text="Green", on_press=lambda x: self.draw.set_color((0,1,0))))
+
+    toolbar.add_widget(Button(text="Thin", on_press=lambda x: self.draw.set_thickness(2)))
+    toolbar.add_widget(Button(text="Thick", on_press=lambda x: self.draw.set_thickness(6)))
+
+    toolbar.add_widget(Button(text="Undo", on_press=lambda x: self.draw.undo()))
+    toolbar.add_widget(Button(text="Save", on_press=lambda x: self.save_image()))
+
+    self.add_widget(toolbar)
+
+# ==========================
+# TOGGLE DRAWING MODE
+# ==========================
+def toggle_draw(self, btn):
+    self.draw.drawing_enabled = not self.draw.drawing_enabled
+    btn.text = "Draw Off" if self.draw.drawing_enabled else "Draw On"
+
+# ==========================
+# SAVE MERGED IMAGE
+# ==========================
+def save_image(self):
+    self.export_to_png("edited_graph.png")
+    print("Saved as edited_graph.png")
+class AnnotatorApp(App):
+def build(self):
+return EditorUI()
+
+AnnotatorApp().run()
+