Add theme management and settings functionality

- Introduced `ThemeManager` to handle application themes using `ttkthemes`.
- Added `SettingsWindow` for user preferences including theme selection and UI settings.
- Integrated theme selection into the main application with a menu for quick access.
- Enhanced UI components with custom styles based on the selected theme.
- Implemented tooltips for better user guidance across various UI elements.
- Updated dependencies to include `ttkthemes` for improved visual appeal.

src/ui_manager.py

@@ -11,6 +11,7 @@ from PIL import Image, ImageTk
 
 from medicine_manager import MedicineManager
 from pathology_manager import PathologyManager
+from tooltip_system import TooltipManager
 
 
 class UIManager:
@@ -22,17 +23,22 @@ class UIManager:
         logger: logging.Logger,
         medicine_manager: MedicineManager,
         pathology_manager: PathologyManager,
+        theme_manager,  # Import would create circular dependency
     ) -> None:
         self.root: tk.Tk = root
         self.logger: logging.Logger = logger
         self.medicine_manager = medicine_manager
         self.pathology_manager = pathology_manager
+        self.theme_manager = theme_manager
 
         # Status bar attributes
         self.status_bar: tk.Frame | None = None
         self.status_label: tk.Label | None = None
         self.file_info_label: tk.Label | None = None
 
+        # Initialize tooltip manager
+        self.tooltip_manager = TooltipManager(theme_manager)
+
     def setup_application_icon(self, img_path: str) -> bool:
         """Set up the application icon."""
         try:
@@ -70,13 +76,20 @@ class UIManager:
     def create_input_frame(self, parent_frame: ttk.Frame) -> dict[str, Any]:
         """Create and configure the input frame with all widgets."""
         # Create main container for the scrollable input frame
-        main_container = ttk.LabelFrame(parent_frame, text="New Entry")
+        main_container = ttk.LabelFrame(
+            parent_frame, text="New Entry", style="Card.TLabelframe"
+        )
         main_container.grid(row=1, column=0, padx=10, pady=10, sticky="nsew")
         main_container.grid_rowconfigure(0, weight=1)
         main_container.grid_columnconfigure(0, weight=1)
 
         # Create canvas and scrollbar for scrolling
-        canvas = tk.Canvas(main_container, highlightthickness=0)
+        theme_colors = self.theme_manager.get_theme_colors()
+        canvas = tk.Canvas(
+            main_container,
+            highlightthickness=0,
+            bg=theme_colors["bg"],
+        )
         scrollbar = ttk.Scrollbar(
             main_container, orient="vertical", command=canvas.yview
         )
@@ -164,7 +177,9 @@ class UIManager:
         ttk.Label(input_frame, text="Treatment:").grid(
             row=medicine_row, column=0, sticky="w", padx=5, pady=2
         )
-        medicine_frame = ttk.LabelFrame(input_frame, text="Medicine")
+        medicine_frame = ttk.LabelFrame(
+            input_frame, text="Medicine", style="Card.TLabelframe"
+        )
         medicine_frame.grid(row=medicine_row, column=1, padx=0, pady=10, sticky="nsew")
         medicine_frame.grid_columnconfigure(0, weight=1)
 
@@ -178,11 +193,19 @@ class UIManager:
                 text = f"{medicine.display_name} {medicine.dosage_info}"
                 medicine_vars[medicine_key] = (var, text)
 
-        for idx, (_med_name, (var, text)) in enumerate(medicine_vars.items()):
+        for idx, (med_key, (var, text)) in enumerate(medicine_vars.items()):
             # Just checkbox for medicine taken
-            ttk.Checkbutton(medicine_frame, text=text, variable=var).grid(
-                row=idx, column=0, sticky="w", padx=5, pady=2
+            checkbox = ttk.Checkbutton(
+                medicine_frame, text=text, variable=var, style="Modern.TCheckbutton"
             )
+            checkbox.grid(row=idx, column=0, sticky="w", padx=5, pady=2)
+
+            # Add tooltip for medicine checkbox
+            medicine = self.medicine_manager.get_medicine(med_key)
+            if medicine:
+                self.tooltip_manager.add_medicine_tooltip(
+                    checkbox, medicine.display_name
+                )
 
         # Note and Date fields - adjust row numbers
         note_row = medicine_row + 1
@@ -194,16 +217,19 @@ class UIManager:
         ttk.Label(input_frame, text="Note:").grid(
             row=note_row, column=0, sticky="w", padx=5, pady=2
         )
-        ttk.Entry(input_frame, textvariable=note_var).grid(
+        ttk.Entry(input_frame, textvariable=note_var, style="Modern.TEntry").grid(
             row=note_row, column=1, sticky="ew", padx=5, pady=2
         )
 
         ttk.Label(input_frame, text="Date (mm/dd/yyyy):").grid(
             row=date_row, column=0, sticky="w", padx=5, pady=2
         )
-        ttk.Entry(input_frame, textvariable=date_var, justify="center").grid(
-            row=date_row, column=1, sticky="ew", padx=5, pady=2
-        )
+        ttk.Entry(
+            input_frame,
+            textvariable=date_var,
+            justify="center",
+            style="Modern.TEntry",
+        ).grid(row=date_row, column=1, sticky="ew", padx=5, pady=2)
 
         # Set default date to today
         date_var.set(datetime.now().strftime("%m/%d/%Y"))
@@ -225,7 +251,7 @@ class UIManager:
     def create_table_frame(self, parent_frame: ttk.Frame) -> dict[str, Any]:
         """Create and configure the table frame with a treeview."""
         table_frame: ttk.LabelFrame = ttk.LabelFrame(
-            parent_frame, text="Log (Double-click to edit)"
+            parent_frame, text="Log (Double-click to edit)", style="Card.TLabelframe"
         )
         table_frame.grid(row=1, column=1, padx=10, pady=10, sticky="nsew")
 
@@ -258,7 +284,34 @@ class UIManager:
         col_labels.append("Note")
         col_settings.append(("Note", 300, "w"))
 
-        tree: ttk.Treeview = ttk.Treeview(table_frame, columns=columns, show="headings")
+        tree: ttk.Treeview = ttk.Treeview(
+            table_frame, columns=columns, show="headings", style="Modern.Treeview"
+        )
+
+        # Configure treeview selection behavior
+        tree.configure(selectmode="browse")  # Single selection mode
+
+        # Configure row tags for alternating colors
+        theme_colors = self.theme_manager.get_theme_colors()
+        tree.tag_configure("evenrow", background=theme_colors["bg"])
+        tree.tag_configure("oddrow", background=theme_colors["alt_bg"])
+
+        # Configure selection highlighting
+        tree.tag_configure(
+            "selected",
+            background=theme_colors["select_bg"],
+            foreground=theme_colors["select_fg"],
+        )
+
+        # Bind selection events to ensure proper highlighting
+        def on_selection_change(event):
+            """Handle treeview selection changes to ensure proper highlighting."""
+            selection = tree.selection()
+            if selection:
+                # Force focus to ensure selection is visible
+                tree.focus(selection[0])
+
+        tree.bind("<<TreeviewSelect>>", on_selection_change)
 
         for col, label in zip(columns, col_labels, strict=False):
             tree.heading(col, text=label)
@@ -277,7 +330,9 @@ class UIManager:
 
     def create_graph_frame(self, parent_frame: ttk.Frame) -> ttk.LabelFrame:
         """Create and configure the graph frame."""
-        graph_frame: ttk.LabelFrame = ttk.LabelFrame(parent_frame, text="Evolution")
+        graph_frame: ttk.LabelFrame = ttk.LabelFrame(
+            parent_frame, text="Evolution", style="Card.TLabelframe"
+        )
         graph_frame.grid(row=0, column=0, columnspan=2, padx=10, pady=10, sticky="nsew")
         return graph_frame
 
@@ -289,23 +344,40 @@ class UIManager:
         button_frame.grid(row=7, column=0, columnspan=2, pady=10)
 
         for btn_config in buttons_config:
-            ttk.Button(
+            button = ttk.Button(
                 button_frame,
                 text=btn_config["text"],
                 command=btn_config["command"],
-            ).pack(
+                style="Action.TButton",
+            )
+            button.pack(
                 side="left",
                 padx=5,
                 fill=btn_config.get("fill", None),
                 expand=btn_config.get("expand", False),
             )
 
+            # Add tooltips based on button text
+            button_text = btn_config["text"].lower()
+            if "add" in button_text or "save" in button_text:
+                self.tooltip_manager.add_button_tooltip(button, "save")
+            elif "quit" in button_text or "exit" in button_text:
+                self.tooltip_manager.add_button_tooltip(button, "quit")
+
         return button_frame
 
     def create_status_bar(self, parent_frame: tk.Widget) -> tk.Frame:
         """Create and configure the status bar at the bottom of the application."""
+        # Get theme colors for consistent styling
+        theme_colors = self.theme_manager.get_theme_colors()
+
         # Create the status bar frame
-        self.status_bar = tk.Frame(parent_frame, relief=tk.SUNKEN, bd=1)
+        self.status_bar = tk.Frame(
+            parent_frame,
+            relief=tk.SUNKEN,
+            bd=1,
+            bg=theme_colors["bg"],
+        )
         self.status_bar.grid(row=2, column=0, columnspan=2, sticky="ew", padx=5, pady=2)
 
         # Configure the parent to make the status bar stretch
@@ -319,6 +391,8 @@ class UIManager:
             font=("TkDefaultFont", 9),
             padx=10,
             pady=2,
+            bg=theme_colors["bg"],
+            fg=theme_colors["fg"],
         )
         self.status_label.pack(side=tk.LEFT, fill=tk.X, expand=True)
 
@@ -330,6 +404,8 @@ class UIManager:
             font=("TkDefaultFont", 9),
             padx=10,
             pady=2,
+            bg=theme_colors["bg"],
+            fg=theme_colors["fg"],
         )
         self.file_info_label.pack(side=tk.RIGHT)
 
@@ -793,9 +869,15 @@ class UIManager:
             variable=vars_dict[key],
             orient=tk.HORIZONTAL,
             length=250,
+            style="Modern.Horizontal.TScale",
         )
         scale.grid(row=0, column=1, sticky="ew")
 
+        # Add tooltip for the scale
+        pathology = self.pathology_manager.get_pathology(key)
+        if pathology:
+            self.tooltip_manager.add_scale_tooltip(scale, pathology.display_name)
+
         # Scale labels
         labels_frame = ttk.Frame(scale_container)
         labels_frame.grid(row=1, column=0, sticky="ew", pady=(5, 0))