├── requirements.txt
├── icon.ico
├── images
    └── one.png
├── DisplayManagerAppIcon.png
├── README.md
├── LICENSE
└── DisplayPartitioner.py


/requirements.txt:
--------------------------------------------------------------------------------
1 | pywin32
2 | pystray
3 | Pillow
4 | keyboard
5 | 


--------------------------------------------------------------------------------
/icon.ico:
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https://raw.githubusercontent.com/Abhijith-Shaju/DisplayPartitioner/HEAD/icon.ico


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/images/one.png:
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https://raw.githubusercontent.com/Abhijith-Shaju/DisplayPartitioner/HEAD/images/one.png


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/DisplayManagerAppIcon.png:
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https://raw.githubusercontent.com/Abhijith-Shaju/DisplayPartitioner/HEAD/DisplayManagerAppIcon.png


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/README.md:
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  1 | # Display Zone Manager
  2 | 
  3 | <p align="center">
  4 |   <img src="https://raw.githubusercontent.com/Abhijith-Shaju/DisplayPartitioner/main/icon.ico" alt="Application Icon" width="128"/>
  5 | </p>
  6 | <h1 align="center">Display Zone Manager</h1>
  7 | <p align="center">A lightweight, powerful, and persistent window management utility for Windows.</p>
  8 | 
  9 | <p align="center">
 10 |   <img src="https://img.shields.io/badge/Platform-Windows-0078D6?logo=windows" alt="Platform">
 11 |   <img src="https://img.shields.io/badge/Python-3.9+-3776AB?logo=python" alt="Python Version">
 12 |   <img src="https://img.shields.io/badge/License-GPLv3-blue.svg" alt="License: GPL v3">
 13 | </p>
 14 | 
 15 | ---
 16 | 
 17 | **Display Zone Manager** is a "set it and forget it" tool for power users, developers, and anyone who needs precise control over their desktop real estate. It allows you to create custom workspaces on your monitor with an interactive, graphical interface.
 18 | 
 19 | Whether you need to visually partition a large monitor, lock your mouse to a specific area, or automatically arrange application windows into a perfect grid, this tool gives you the power to do so with ease and efficiency.
 20 | 
 21 | ## ✨ Features
 22 | 
 23 | - ✅ **Full Graphical User Interface:** No more editing config files! A modern, responsive settings window gives you a real-time visual representation of your monitor and zones.
 24 | - 🎨 **Visual Overlay Zone:** Create a persistent, semi-transparent colored bar to visually divide your monitor space.
 25 | - 🖼️ **Intelligent Window Tiling:**
 26 |     - **Manual Selection:** Choose exactly which applications you want to manage from an auto-detected list, complete with app icons.
 27 |     - **Dynamic Grid Layout:** The app automatically arranges 1, 2, 3, or 4+ windows into a logical, aesthetically pleasing grid that adapts to your defined zone.
 28 |     - **Custom Tiling Areas:** Define a tiling zone across a full partition or specify a custom start and end coordinate.
 29 | - 🖱️ **Cursor Lock ("Hard Wall"):**
 30 |     - Lock your mouse cursor to a specific region of your monitor.
 31 |     - Uses the native `ClipCursor` API for a lag-free, OS-level boundary.
 32 | - ✏️ **Interactive & Precise Configuration:**
 33 |     - **Drag-and-Drop:** Simply drag a line on the screen canvas to set your boundaries.
 34 |     - **Manual Input:** Type in an exact coordinate for pixel-perfect control.
 35 | - ⌨️ **Customizable Global Hotkey:** Bring up the settings window from anywhere with a custom hotkey (defaults to a safe `Ctrl+Alt+P`).
 36 | - 💾 **Persistent Settings:** All your configurations—target monitor, zones, colors, opacity, hotkey, and tiled windows—are saved automatically and reloaded on next launch.
 37 | - 🚀 **Lightweight & Efficient:** Runs silently in the system tray with minimal CPU and memory usage.
 38 | 
 39 | ## 📺 Demo
 40 | 
 41 | <p align="center">
 42 |     This is the Application interface</br>
 43 |   <img src="https://raw.githubusercontent.com/Abhijith-Shaju/DisplayPartitioner/main/images/one.png" alt="Appliaction Setting" width="512"/>
 44 | </p>
 45 | 
 46 | ## Who is this for?
 47 | 
 48 | - **Developers** who want a tiling-like experience on one monitor while keeping another free.
 49 | - **Streamers** who need to section off parts of their screen for game, chat, and streaming software.
 50 | - **Power Users** looking for more granular control over their desktop than standard Windows settings allow.
 51 | - Anyone with an **ultrawide monitor** who wants to create more manageable, focused workspaces.
 52 | 
 53 | ## 🚀 Installation & Usage
 54 | 
 55 | ### For End-Users (Recommended)
 56 | No programming knowledge required.
 57 | 
 58 | 1.  Go to the [**Releases Page**](https://github.com/Abhijith-Shaju/DisplayPartitioner/releases) of this repository.
 59 | 2.  Download the latest `Display_Zone_Manager.exe` file.
 60 | 3.  Place the `.exe` file in a permanent folder on your computer.
 61 | 4.  Double-click to run. An icon will appear in your system tray.
 62 | 5.  **Left-click the tray icon** (or right-click and choose "Settings") to open the configuration window and set up your zones.
 63 | 
 64 | ### Auto-Start with Windows
 65 | To have the app run automatically every time you log in:
 66 | 
 67 | 1.  Create a shortcut to `Display_Zone_Manager.exe`.
 68 | 2.  Press `Win + R` to open the Run dialog.
 69 | 3.  Type `shell:startup` and press Enter. This opens your user Startup folder.
 70 | 4.  Move the shortcut you created into this folder. Done!
 71 | 
 72 | ---
 73 | 
 74 | ## 🛠️ Building from Source
 75 | 
 76 | If you wish to modify or build the application yourself:
 77 | 
 78 | 1.  **Clone the Repository:**
 79 |     ```bash
 80 |     git clone https://github.com/Abhijith-Shaju/DisplayPartitioner.git
 81 |     cd DisplayPartitioner
 82 |     ```
 83 | 2.  **Create a Virtual Environment (Recommended):**
 84 |     ```bash
 85 |     python -m venv venv
 86 |     .\venv\Scripts\activate  # On Windows
 87 |     # source venv/bin/activate  # On macOS/Linux
 88 |     ```
 89 | 3.  **Install Dependencies:**
 90 |     A `requirements.txt` file is included for convenience.
 91 |     ```bash
 92 |     pip install -r requirements.txt
 93 |     ```
 94 | 4.  **Run the Script:**
 95 |     ```bash
 96 |     python DisplayPartitioner.py
 97 |     ```
 98 | 
 99 | ### Building the Executable
100 | To package the script into a single `.exe` file, [PyInstaller](https://pyinstaller.org/) is used.
101 | 
102 | 1.  Make sure you have PyInstaller installed (`pip install pyinstaller`).
103 | 2.  Run the build command from the project root directory:
104 |     ```bash
105 |     pyinstaller --onefile --windowed --icon="icon.ico" --add-data "icon.ico;." --name="Display_Zone_Manager" your_script_name.py
106 |     ```
107 |     *Note: The `--add-data` flag is crucial for ensuring the `icon.ico` is bundled correctly into the final executable.*
108 | 
109 | The final `.exe` will be located in the `dist` folder.
110 | 
111 | ## Dependencies
112 | 
113 | - **pywin32:** For all native Windows API interaction.
114 | - **pystray:** For creating and managing the system tray icon.
115 | - **Pillow:** An image library required by `pystray` and for icon handling.
116 | - **keyboard:** For capturing the global hotkey.
117 | 
118 | ---
119 | 
120 | ## Author & Contact
121 | 
122 | **Abhijith Shaju**
123 | - Email: [abhijithshaju2004@gmail.com](mailto:abhijithshaju2004@gmail.com)
124 | 
125 | *Note: AI was used as a tool to help create this project.*
126 | 
127 | ## 📄 License
128 | This project is licensed under the GPLv3 License. See the [LICENSE](LICENSE) file for details.
129 | 
130 | 


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621 |                      END OF TERMS AND CONDITIONS
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623 |             How to Apply These Terms to Your New Programs
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625 |   If you develop a new program, and you want it to be of the greatest
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634 |     <one line to give the program's name and a brief idea of what it does.>
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650 | Also add information on how to contact you by electronic and paper mail.
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652 |   If the program does terminal interaction, make it output a short
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660 | The hypothetical commands `show w' and `show c' should show the appropriate
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669 |   The GNU General Public License does not permit incorporating your program
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671 | may consider it more useful to permit linking proprietary applications with
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673 | Public License instead of this License.  But first, please read
674 | <https://www.gnu.org/licenses/why-not-lgpl.html>.
675 | 


--------------------------------------------------------------------------------
/DisplayPartitioner.py:
--------------------------------------------------------------------------------
  1 | # =============================================================================
  2 | # Display Zone Manager
  3 | # Version: 3.0.0 (Stable - Tkinter Overlay Architecture)
  4 | #
  5 | # Description:
  6 | #   A comprehensive, stable window management utility. This version migrates
  7 | #   the overlay from a native Win32 window to a more stable Tkinter-based
  8 | #   architecture, resolving all startup and handle-invalidation errors.
  9 | # =============================================================================
 10 | import sys, os, json, time, threading, math, tkinter as tk
 11 | from tkinter import ttk, messagebox, colorchooser
 12 | from pystray import MenuItem as item, Icon, Menu
 13 | from PIL import Image, ImageDraw, ImageTk
 14 | import win32api, win32gui, win32con, keyboard, pythoncom, ctypes
 15 | from ctypes import wintypes
 16 | 
 17 | # --- CONFIGURATION & CONSTANTS ---
 18 | APP_NAME = "DisplayZoneManager"
 19 | CONFIG_DIR = os.path.join(os.getenv('APPDATA'), APP_NAME)
 20 | CONFIG_FILE = os.path.join(CONFIG_DIR, 'settings.json')
 21 | DEFAULT_HOTKEY = "win+alt+z"
 22 | DEFAULT_OVERLAY_COLOR = "#000000"
 23 | DEFAULT_OVERLAY_OPACITY = 50
 24 | # NATIVE_OVERLAY_CLASS no longer needed
 25 | 
 26 | # --- HELPER CLASSES AND FUNCTIONS ---
 27 | def hex_to_rgb(hex_color):
 28 |     hex_color = hex_color.lstrip('#')
 29 |     return tuple(int(hex_color[i:i+2], 16) for i in (0, 2, 4))
 30 | 
 31 | 
 32 | # --- FINAL DYNAMIC LAYOUT LOGIC ---
 33 | 
 34 | class DynamicProportionalLayout:
 35 |     """
 36 |     An intelligent layout that adapts to the number of windows and the
 37 |     aspect ratio of the tiling zone, following specific user rules.
 38 |     """
 39 |     def calculate(self, windows, rect):
 40 |         positions = {}
 41 |         x, y, w, h = rect
 42 |         num_windows = len(windows)
 43 | 
 44 |         if not num_windows:
 45 |             return positions
 46 | 
 47 |         # --- Rule for 1 window ---
 48 |         if num_windows == 1:
 49 |             positions[windows[0]] = (x, y, w, h)
 50 |             return positions
 51 | 
 52 |         # Determine if the tiling zone is wider than it is tall.
 53 |         is_horizontal = w > h
 54 | 
 55 |         # --- Rule for 2 windows ---
 56 |         if num_windows == 2:
 57 |             if is_horizontal: # Split vertically
 58 |                 positions[windows[0]] = (x, y, w // 2, h)
 59 |                 positions[windows[1]] = (x + w // 2, y, w - (w // 2), h)
 60 |             else: # Split horizontally
 61 |                 positions[windows[0]] = (x, y, w, h // 2)
 62 |                 positions[windows[1]] = (x, y + h // 2, w, h - (h // 2))
 63 |             return positions
 64 | 
 65 |         # --- Rule for 3 windows (Master/Stack layout) ---
 66 |         if num_windows == 3:
 67 |             if is_horizontal: # Master on the side
 68 |                 positions[windows[0]] = (x, y, w // 2, h) # Master
 69 |                 positions[windows[1]] = (x + w // 2, y, w - (w // 2), h // 2) # Stack 1
 70 |                 positions[windows[2]] = (x + w // 2, y + h // 2, w - (w // 2), h - (h // 2)) # Stack 2
 71 |             else: # Master on top
 72 |                 positions[windows[0]] = (x, y, w, h // 2) # Master
 73 |                 positions[windows[1]] = (x, y + h // 2, w // 2, h - (h // 2)) # Stack 1
 74 |                 positions[windows[2]] = (x + w // 2, y + h // 2, w - (w // 2), h - (h // 2)) # Stack 2
 75 |             return positions
 76 | 
 77 |         # --- Fallback Rule for 4+ windows (Smart Grid) ---
 78 |         if num_windows >= 4:
 79 |             cols = math.ceil(math.sqrt(num_windows))
 80 |             rows = math.ceil(num_windows / cols)
 81 |             
 82 |             cell_height = h // rows
 83 |             window_index = 0
 84 |             for r in range(int(rows)):
 85 |                 remaining_windows = num_windows - window_index
 86 |                 windows_in_this_row = min(int(cols), remaining_windows)
 87 |                 if windows_in_this_row == 0: break
 88 |                 
 89 |                 cell_width = w // windows_in_this_row
 90 |                 for c in range(windows_in_this_row):
 91 |                     hwnd = windows[window_index]
 92 |                     pos_x = x + c * cell_width
 93 |                     pos_y = y + r * cell_height
 94 |                     
 95 |                     pos_w = w - (c * cell_width) if c == windows_in_this_row - 1 else cell_width
 96 |                     pos_h = h - (r * cell_height) if r == rows - 1 else cell_height
 97 |                     
 98 |                     positions[hwnd] = (pos_x, pos_y, pos_w, pos_h)
 99 |                     window_index += 1
100 |             return positions
101 |         
102 |         return positions
103 | 
104 | 
105 | class LayoutManager:
106 |     """Manages which layout algorithm to use."""
107 |     def __init__(self):
108 |         # We now use our new, intelligent dynamic layout class.
109 |         self.layout = DynamicProportionalLayout()
110 | 
111 |     def tile(self, windows, rect):
112 |         return self.layout.calculate(windows, rect) if windows and rect else None
113 | 
114 | # --- UI CLASS ---
115 | 
116 | # ==============================================================================
117 | #  Replace your ENTIRE SettingsWindow class with this one
118 | # ==============================================================================
119 | class SettingsWindow(tk.Toplevel):
120 |     def __init__(self, master, app_instance):
121 |         super().__init__(master); self.app = app_instance; self.title(f"{APP_NAME} Settings")
122 | 
123 |         try:
124 |             self.iconbitmap('icon.ico')
125 |         except tk.TclError:
126 |             pass # The warning will be printed once from main()
127 | 
128 |         self.resizable(True, True)  # Allow the window to be resized
129 |         self.minsize(820, 500)      # Set a reasonable minimum size
130 |         self.protocol("WM_DELETE_WINDOW", self.on_close); self.dragged_item = None
131 | 
132 |         self._link_variables(); self._create_styles(); self._create_widgets(); self.update_all_ui_sections()
133 | 
134 |     def _link_variables(self):
135 |         self.is_overlay_enabled_var = tk.BooleanVar(value=self.app.is_overlay_enabled)
136 |         self.is_tiling_enabled_var = tk.BooleanVar(value=self.app.is_tiling_enabled)
137 |         self.is_cursor_lock_enabled_var = tk.BooleanVar(value=self.app.is_cursor_lock_enabled)
138 |         self.overlay_boundary_var = tk.IntVar(value=self.app.overlay_boundary_x)
139 |         self.tiling_start_var = tk.IntVar(value=self.app.tiling_start_x)
140 |         self.tiling_end_var = tk.IntVar(value=self.app.tiling_end_x)
141 |         self.cursor_lock_boundary_var = tk.IntVar(value=self.app.cursor_lock_x)
142 |         self.hotkey_var = tk.StringVar(value=self.app.hotkey); self.color_var = tk.StringVar(value=self.app.overlay_color)
143 |         self.opacity_var = tk.IntVar(value=self.app.overlay_opacity); self.tiling_mode_var = tk.StringVar(value=self.app.tiling_mode)
144 |         self.cursor_lock_mode_var = tk.StringVar(value=self.app.cursor_lock_mode)
145 |         self.all_monitors = self.app.all_monitors; self.monitor_names = [f"Monitor {i} ({mon['Rect'][2]-mon['Rect'][0]}x{mon['Rect'][3]-mon['Rect'][1]}) {'(Primary)' if mon['is_primary'] else ''}" for i, mon in enumerate(self.all_monitors)]
146 |         self.monitor_var = tk.StringVar(value=self.monitor_names[self.app.target_monitor_index])
147 | 
148 |     def _create_styles(self): s=ttk.Style(self);s.configure('Section.TFrame',background='#fafafa',borderwidth=1,relief='groove');s.configure('Sub.TFrame',background='#fafafa')
149 | 
150 |     # Replace this entire method in the SettingsWindow class
151 |     def _create_widgets(self):
152 |         # Main frame setup is fine
153 |         main_frame = tk.Frame(self,padx=10,pady=10); main_frame.pack(fill='both',expand=True)
154 |         
155 |         # Top frame setup is fine
156 |         top_frame = tk.Frame(main_frame); top_frame.pack(fill='x',pady=(0,10))
157 |         tk.Label(top_frame,text="Target Monitor:").grid(row=0,column=0,sticky='w');tk.OptionMenu(top_frame,self.monitor_var,*self.monitor_names,command=self.on_monitor_select).grid(row=0,column=1,padx=5,sticky='w');tk.Label(top_frame,text="Global Hotkey:").grid(row=0,column=2,padx=(20,0));tk.Entry(top_frame,textvariable=self.hotkey_var,width=20).grid(row=0,column=3,padx=5);tk.Button(top_frame,text="Set",command=self.apply_hotkey).grid(row=0,column=4)
158 |         
159 |         # --- CHANGE 1: Configure the Canvas ---
160 |         # The canvas should only fill horizontally, not vertically.
161 |         self.canvas = tk.Canvas(main_frame,width=800,height=100,bg="#e0e0e0",relief="sunken",borderwidth=1)
162 |         self.canvas.pack(pady=5,padx=5, fill='x') # Changed from just pack(...)
163 |         self.canvas.bind("<ButtonPress-1>",self._on_drag_start);self.canvas.bind("<B1-Motion>",self._on_drag_line);self.canvas.bind("<ButtonRelease-1>",self._on_drag_end)
164 | 
165 |         # --- CHANGE 2: Configure the Features Container ---
166 |         # This container holds the three main sections and should expand both ways.
167 |         features_container = tk.Frame(main_frame)
168 |         features_container.pack(fill='both',expand=True,pady=10)
169 | 
170 |         # These two lines are CRITICAL for making the sections resize
171 |         features_container.grid_columnconfigure((0,1,2),weight=1) # Makes columns expand horizontally
172 |         features_container.grid_rowconfigure(0,weight=1)          # Makes the row expand vertically
173 |         
174 |         # The rest of the creation logic is the same, but it will now be responsive
175 |         self.overlay_frame = self._create_section_frame(features_container," Overlay Zone ","Enable Overlay",self.is_overlay_enabled_var,self.toggle_overlay_feature)
176 |         self.tiling_frame = self._create_section_frame(features_container," Tiling Zone ","Enable Tiling",self.is_tiling_enabled_var,self.toggle_tiling_feature)
177 |         self.cursor_frame = self._create_section_frame(features_container," Cursor Lock ","Enable Cursor Lock",self.is_cursor_lock_enabled_var,self.toggle_cursor_lock_feature)
178 |         
179 |         # Use 'nsew' sticky to make the frames fill their grid cell completely
180 |         self.overlay_frame.grid(row=0,column=0,sticky='nsew',padx=5)
181 |         self.tiling_frame.grid(row=0,column=1,sticky='nsew',padx=5)
182 |         self.cursor_frame.grid(row=0,column=2,sticky='nsew',padx=5)   
183 |     
184 |     
185 |     def _create_section_frame(self, p,t,cb,v,c): f=ttk.Labelframe(p,text=t,padding=10);tk.Checkbutton(f,text=cb,variable=v,command=c).pack(anchor='w',pady=(0,5));cf=ttk.Frame(f,style='Section.TFrame',padding=5);cf.pack(fill='both',expand=True);setattr(self,t.strip().lower().replace(" ","_")+"_controls",cf);return f
186 |     def _create_bound_entry(self, p,l,v,cmd): tk.Label(p,text=l).grid(row=0,column=0,sticky='w');e=tk.Entry(p,textvariable=v,width=8);e.grid(row=0,column=1,padx=5);b=tk.Button(p,text="Set",width=5,command=lambda:cmd(v.get()));b.grid(row=0,column=2);e.bind("<Return>",lambda e:cmd(v.get()))
187 |     # Replace this entire method in the SettingsWindow class
188 |     def update_all_ui_sections(self):
189 |         # First, clear the detailed controls from all three sections.
190 |         # This prepares them for a fresh build.
191 |         for f in [self.overlay_zone_controls, self.tiling_zone_controls, self.cursor_lock_controls]:
192 |             for c in f.winfo_children():
193 |                 c.destroy()
194 |                 
195 |         # --- THIS IS THE FIX ---
196 |         # Unconditionally call all build methods. The methods themselves contain the
197 |         # logic to decide whether to show detailed controls based on the feature's status.
198 |         self._build_overlay_controls()
199 |         self._build_tiling_controls()
200 |         self._build_cursor_controls()
201 |         
202 |         # Recalculate geometry and update the top canvas after the UI is rebuilt.
203 |         self.app.recalculate_geometry()
204 |         self.update_canvas()
205 | 
206 | 
207 |     def _open_color_picker(self):
208 |         """Opens the OS color picker and applies the selected color."""
209 |         # The initialcolor parameter pre-selects the current color in the dialog.
210 |         # The title sets the dialog window's title.
211 |         # The parent ensures the dialog appears on top of the settings window.
212 |         result_color = colorchooser.askcolor(initialcolor=self.app.overlay_color,
213 |                                             title="Select Overlay Color",
214 |                                             parent=self)
215 |         
216 |         # askcolor returns a tuple: ((r,g,b), '#hexcode') or (None, None) if canceled.
217 |         if result_color and result_color[1]:
218 |             hex_code = result_color[1]
219 |             self.color_var.set(hex_code) # Update the Entry box variable
220 |             self.app.set_overlay_color(hex_code) # Apply the color to the app
221 |             
222 |     # Now, replace the build method
223 |     def _build_overlay_controls(self):
224 |         f = self.overlay_zone_controls
225 |         f.grid_columnconfigure(0, weight=1) # Allow contents to expand horizontally
226 | 
227 |         # --- THIS IS THE FIX for Request #1 ---
228 |         # Create an inner frame for all controls EXCEPT the main "Enable" checkbox.
229 |         inner_controls_frame = ttk.Frame(f)
230 |         inner_controls_frame.pack(fill='both', expand=True)
231 | 
232 |         ef = ttk.Frame(inner_controls_frame, style='Sub.TFrame')
233 |         ef.grid(row=0, column=0, sticky='ew', pady=(0, 5))
234 |         self._create_bound_entry(ef, "Boundary X:", self.overlay_boundary_var, self.app.set_overlay_boundary)
235 |         
236 |         tk.Label(inner_controls_frame, text="Color:").grid(row=1, column=0, sticky='w')
237 |         cf = ttk.Frame(inner_controls_frame, style='Sub.TFrame')
238 |         cf.grid(row=2, column=0, sticky='ew', pady=(0, 5))
239 |         self.color_preview = tk.Label(cf, text="    ", bg=self.app.overlay_color, relief='sunken', borderwidth=1)
240 |         self.color_preview.grid(row=0, column=0, padx=(0, 5))
241 |         self.color_entry = tk.Entry(cf, textvariable=self.color_var, width=10)
242 |         self.color_entry.grid(row=0, column=1)
243 |         self.color_entry.bind("<Return>", self.apply_hex_color)
244 |         tk.Button(cf, text="Set", command=self.apply_hex_color, width=5).grid(row=0, column=2, padx=5)
245 |         
246 |         # The command for the "Picker..." button is now our new helper method.
247 |         tk.Button(cf, text="Picker...", command=self._open_color_picker, width=8).grid(row=0, column=3, padx=(10, 0))
248 | 
249 |         tk.Label(inner_controls_frame, text="Opacity:").grid(row=3, column=0, sticky='w', pady=(5, 0))
250 |         of = ttk.Frame(inner_controls_frame, style='Sub.TFrame')
251 |         of.grid(row=4, column=0, sticky='ew')
252 |         tk.Scale(of, from_=0, to=100, orient='h', variable=self.opacity_var, command=lambda v: self.app.set_overlay_opacity(int(v)), showvalue=0).pack(side='left', fill='x', expand=True)
253 |         tk.Label(of, textvariable=self.opacity_var).pack(side='left', padx=(5, 0))
254 |         
255 |         self._create_description_label(inner_controls_frame, "Creates a semi-transparent colored bar on the screen to visually separate monitor space.")
256 | 
257 |         # Call our helper to set the initial state of the controls.
258 |         self._set_child_widgets_state(inner_controls_frame, 'normal' if self.app.is_overlay_enabled else 'disabled')
259 | 
260 | 
261 |     def _build_tiling_controls(self):
262 |         self._create_check_images()
263 |         f = self.tiling_zone_controls
264 | 
265 |         # --- THIS IS THE FIX for Request #1 ---
266 |         # Create an inner frame for all controls EXCEPT the main "Enable" checkbox.
267 |         # This allows us to disable/enable everything at once.
268 |         inner_controls_frame = ttk.Frame(f)
269 |         inner_controls_frame.pack(fill='both', expand=True)
270 |         
271 |         inner_controls_frame.grid_columnconfigure(0, weight=1)
272 |         inner_controls_frame.grid_rowconfigure(3, weight=1)
273 | 
274 |         # 1. Tiling Zone Definition
275 |         mode_frame = ttk.Frame(inner_controls_frame)
276 |         mode_frame.grid(row=0, column=0, sticky='ew')
277 |         tk.Label(mode_frame, text="Tiling Zone:").pack(side='left', anchor='w')
278 |         tk.Radiobutton(mode_frame, text="Full Partition", variable=self.tiling_mode_var, value="full", command=self.on_tiling_mode_change).pack(side='left', padx=5)
279 |         tk.Radiobutton(mode_frame, text="Custom Zone", variable=self.tiling_mode_var, value="custom", command=self.on_tiling_mode_change).pack(side='left', padx=5)
280 | 
281 |         # 2. Custom Zone Inputs
282 |         self.custom_options_frame = ttk.Frame(inner_controls_frame, style='Section.TFrame', padding=5)
283 |         start_frame = ttk.Frame(self.custom_options_frame, style='Sub.TFrame'); start_frame.pack(fill='x', pady=(0, 2))
284 |         end_frame = ttk.Frame(self.custom_options_frame, style='Sub.TFrame'); end_frame.pack(fill='x')
285 |         self._create_bound_entry(start_frame, "Start X:", self.tiling_start_var, self.app.set_tiling_start)
286 |         self._create_bound_entry(end_frame, "End X:  ", self.tiling_end_var, self.app.set_tiling_end)
287 |         self.custom_options_frame.grid(row=1, column=0, sticky='ew', pady=5)
288 |         
289 |         # 3. Separator
290 |         ttk.Separator(inner_controls_frame, orient='horizontal').grid(row=2, column=0, sticky='ew', pady=5)
291 | 
292 |         # 4. Manual Window Selection UI
293 |         list_frame = ttk.Frame(inner_controls_frame)
294 |         list_frame.grid(row=3, column=0, sticky='nsew')
295 |         list_frame.grid_rowconfigure(1, weight=1)
296 |         list_frame.grid_columnconfigure(0, weight=1)
297 |         
298 |         tk.Button(list_frame, text="Refresh Window List", command=self._refresh_window_list).grid(row=0, column=0, sticky='ew', pady=(0, 5))
299 |         self.tree = ttk.Treeview(list_frame, show='tree', height=8)
300 |         self.tree.grid(row=1, column=0, sticky='nsew')
301 |         self.tree.column("#0", width=350, stretch=tk.YES, anchor='w')
302 |         self.tree.heading("#0", text="Window Title", anchor='w')
303 |         
304 |         scrollbar = ttk.Scrollbar(list_frame, orient='vertical', command=self.tree.yview)
305 |         scrollbar.grid(row=1, column=1, sticky='ns')
306 |         self.tree.configure(yscrollcommand=scrollbar.set)
307 |         self.tree.tag_configure('checked', image=self.check_images['checked'])
308 |         self.tree.tag_configure('unchecked', image=self.check_images['unchecked'])
309 |         self.tree.bind("<Button-1>", self._on_toggle_check)
310 |         self.listbox_windows_map = {}
311 | 
312 |         # 5. Description
313 |         self._create_description_label(inner_controls_frame, "Automatically arranges selected windows into a grid within the defined Tiling Zone. Windows can be selected from the list above.")
314 | 
315 |         # Call our helper to set the initial state of the controls.
316 |         if not self.app.is_tiling_enabled:
317 |             self._set_child_widgets_state(inner_controls_frame, state='disabled')
318 | 
319 |         self.on_tiling_mode_change() 
320 |         self._refresh_window_list()
321 | 
322 | 
323 |     def _create_check_images(self):
324 |         if hasattr(self, 'check_images'): return
325 |         unchecked = Image.new('RGBA', (16, 16), (0,0,0,0))
326 |         draw = ImageDraw.Draw(unchecked)
327 |         draw.rectangle((2, 2, 13, 13), outline='gray', width=1)
328 |         checked = unchecked.copy()
329 |         draw = ImageDraw.Draw(checked)
330 |         draw.line((4, 8, 7, 11, 12, 4), fill='blue', width=2)
331 |         self.check_images = {'checked': ImageTk.PhotoImage(checked), 'unchecked': ImageTk.PhotoImage(unchecked)}
332 |         
333 | 
334 |     def _refresh_window_list(self):
335 |         for i in self.tree.get_children():
336 |             self.tree.delete(i)
337 |         
338 |         eligible_windows = self.app.get_all_eligible_windows()
339 |         self.listbox_windows_map = {hwnd: title for hwnd, title in eligible_windows}
340 |         
341 |         selected_hwnds = set(self.app.managed_windows)
342 |         
343 |         for hwnd, title in eligible_windows:
344 |             app_icon = self.app.get_icon_for_hwnd(hwnd)
345 |             is_checked = hwnd in selected_hwnds
346 |             tag_to_apply = 'checked' if is_checked else 'unchecked'
347 |             
348 |             # --- THE FINAL, ROBUST 2-STEP LOGIC ---
349 |             
350 |             # Step 1: Insert the item with the absolute bare minimum.
351 |             # We only provide the iid and the text. This call is reliable.
352 |             self.tree.insert('', 'end', iid=hwnd, text=title)
353 |             
354 |             # Step 2: Configure ALL other options (image, tags) using the reliable
355 |             # .item() method in a separate, secondary call.
356 |             if app_icon: # Only apply the image if it exists
357 |                 self.tree.item(hwnd, image=app_icon, tags=(tag_to_apply,))
358 |             else: # Fallback for windows without icons
359 |                 self.tree.item(hwnd, tags=(tag_to_apply,))
360 | 
361 |     def _on_toggle_check(self, event):
362 |         row_id = self.tree.identify_row(event.y)
363 |         if not row_id: return
364 |             
365 |         hwnd = int(row_id)
366 |         current_tags = self.tree.item(hwnd, "tags")
367 |         
368 |         if 'checked' in current_tags:
369 |             self.tree.item(hwnd, tags=('unchecked',))
370 |         else:
371 |             self.tree.item(hwnd, tags=('checked',))
372 |             
373 |         self._update_tiling_from_tree_state()
374 | 
375 |     def _update_tiling_from_tree_state(self):
376 |         selected_hwnds = []
377 |         for hwnd_str in self.tree.get_children():
378 |             tags = self.tree.item(hwnd_str, "tags")
379 |             if 'checked' in tags:
380 |                 selected_hwnds.append(int(hwnd_str))
381 |         
382 |         self.app.managed_windows = selected_hwnds
383 |         self.app.retile_zone()
384 |     # ---- END OF CORRECTED TILING UI METHODS ----
385 | 
386 |     # Replace this entire method in the SettingsWindow class
387 |     def _build_cursor_controls(self):
388 |         f = self.cursor_lock_controls
389 | 
390 |         # --- THIS IS THE FIX ---
391 |         # Create an inner frame to hold all controls except the main "Enable" checkbox.
392 |         inner_controls_frame = ttk.Frame(f)
393 |         inner_controls_frame.pack(fill='both', expand=True)
394 |         inner_controls_frame.grid_columnconfigure(0, weight=1) # Allow contents to expand horizontally
395 | 
396 |         # --- Manage all items with Grid inside the inner frame ---
397 |         tk.Label(inner_controls_frame, text="Lock Mode:").grid(row=0, column=0, sticky='w')
398 |         
399 |         rb1 = tk.Radiobutton(inner_controls_frame, text="To Overlay Edge", variable=self.cursor_lock_mode_var, value="overlay", command=self.on_cursor_mode_change)
400 |         rb1.grid(row=1, column=0, sticky='w')
401 |         # The 'disabled' state of this specific radio button depends on the OVERLAY's status.
402 |         rb1.config(state='normal' if self.app.is_overlay_enabled else 'disabled') 
403 | 
404 |         tk.Radiobutton(inner_controls_frame, text="Custom Position", variable=self.cursor_lock_mode_var, value="custom", command=self.on_cursor_mode_change).grid(row=2, column=0, sticky='w')
405 | 
406 |         self.custom_cursor_frame = ttk.Frame(inner_controls_frame, style='Sub.TFrame')
407 |         self.custom_cursor_frame.grid(row=3, column=0, sticky='ew', pady=5)
408 |         self._create_bound_entry(self.custom_cursor_frame, "Wall X:", self.cursor_lock_boundary_var, self.app.set_cursor_lock_boundary)
409 |         
410 |         self.on_cursor_mode_change() 
411 |         
412 |         self._create_description_label(inner_controls_frame, "Restricts the mouse cursor, preventing it from moving past the defined line on the target monitor.")
413 | 
414 |         # Call our helper to set the initial state of the controls.
415 |         if not self.app.is_cursor_lock_enabled:
416 |             self._set_child_widgets_state(inner_controls_frame, state='disabled')
417 | 
418 |     def update_canvas(self):
419 |         self.canvas.delete("all");self._scale,self.offset_x,self.offset_y=self._calculate_scale();
420 |         for i,mon in enumerate(self.all_monitors):
421 |             l,t,r,b=mon['Rect'];h=b-t;cl=self._real_to_canvas_x(l);cr=self._real_to_canvas_x(r);ct=self.offset_y-(h*self._scale*0.4);cb=self.offset_y+(h*self._scale*0.4);fill_color="#ddffdd" if i==self.app.target_monitor_index else"#cccccc";self.canvas.create_rectangle(cl,ct,cr,cb,fill=fill_color,outline="black");self.canvas.create_text((cl+cr)/2,self.offset_y,text=f"M{i}{'P' if mon['is_primary'] else ''}",anchor='center')
422 |         tm=self.all_monitors[self.app.target_monitor_index];l,t,r,b=tm['Rect'];h=b-t;ct=self.offset_y-(h*self._scale*0.4);cb=self.offset_y+(h*self._scale*0.4)
423 |         if self.app.overlay_rect:x,_,w,_=self.app.overlay_rect;self.canvas.create_rectangle(self._real_to_canvas_x(x),ct,self._real_to_canvas_x(x+w),cb,fill="#ffaaaa",stipple="gray50",outline="")
424 | 
425 |         if self.app.tiling_rect and self.app.is_tiling_enabled:
426 |             x,_,w,_=self.app.tiling_rect
427 |             self.canvas.create_rectangle(self._real_to_canvas_x(x),ct,self._real_to_canvas_x(x+w),cb,fill="#aaffaa",stipple="gray25",outline="")
428 | 
429 |         if self.app.is_overlay_enabled:self._draw_draggable_line(self.app.overlay_boundary_x,'red','overlay_line')
430 |         if self.app.is_tiling_enabled and self.app.tiling_mode=="custom":self._draw_draggable_line(self.app.tiling_start_x,'green','tiling_start_line');self._draw_draggable_line(self.app.tiling_end_x,'green','tiling_end_line')
431 |         if self.app.is_cursor_lock_enabled and self.app.cursor_lock_mode=="custom":self._draw_draggable_line(self.app.cursor_lock_x,'blue','cursor_line',(4,4))
432 |     
433 |     def _calculate_scale(self):min_x=min(m['Rect'][0]for m in self.all_monitors);max_x=max(m['Rect'][2]for m in self.all_monitors);w=max_x-min_x;return(800*0.95)/w if w>0 else 1,-min_x,50
434 |     def _real_to_canvas_x(self,x):return 20+(x+self.offset_x)*self._scale
435 |     def _canvas_to_real_x(self,x):return int(((x-20)/self._scale)-self.offset_x)
436 |     def _draw_draggable_line(self,x,c,t,d=None):cx=self._real_to_canvas_x(x);self.canvas.create_line(cx,0,cx,100,fill=c,width=3,tags=(t,"draggable"),dash=d)
437 |     def _on_drag_start(self,e):i=self.canvas.find_closest(e.x,e.y,halo=5);self.dragged_item=self.canvas.gettags(i[0])[0]if i and"draggable"in self.canvas.gettags(i[0])else None
438 |     def _on_drag_end(self,e):self.dragged_item=None
439 |     # Replace this entire method in the SettingsWindow class
440 |     def _on_drag_line(self, e):
441 |         if not self.dragged_item:
442 |             return
443 | 
444 |         # Get the boundaries of the target monitor on the canvas
445 |         target_mon = self.all_monitors[self.app.target_monitor_index]['Rect']
446 |         l, _, r, _ = target_mon
447 |         canvas_left_bound = self._real_to_canvas_x(l)
448 |         canvas_right_bound = self._real_to_canvas_x(r)
449 |         
450 |         # Constrain the mouse's X position to within the monitor's representation on the canvas
451 |         constrained_x = max(canvas_left_bound, min(e.x, canvas_right_bound))
452 |         real_x_value = self._canvas_to_real_x(constrained_x)
453 | 
454 |         # --- THIS IS THE KEY ---
455 |         # The dictionary that maps a dragged line's tag to its action.
456 |         # We are adding the tiling and cursor lines here.
457 |         drag_actions = {
458 |             "overlay_line":      (self.overlay_boundary_var, self.app.set_overlay_boundary),
459 |             "tiling_start_line": (self.tiling_start_var, self.app.set_tiling_start),
460 |             "tiling_end_line":   (self.tiling_end_var, self.app.set_tiling_end),
461 |             "cursor_line":       (self.cursor_lock_boundary_var, self.app.set_cursor_lock_boundary)
462 |         }
463 |         
464 |         # Check if the item we are dragging has a defined action
465 |         if self.dragged_item in drag_actions:
466 |             variable_to_update, setter_function = drag_actions[self.dragged_item]
467 |             
468 |             # Update the Tkinter variable, which instantly changes the value in the Entry box
469 |             variable_to_update.set(real_x_value)
470 |             
471 |             # Call the main application's function to apply the new value. This will also
472 |             # trigger a retile or recalculation of geometry automatically.
473 |             setter_function(real_x_value)
474 |     
475 |     def on_monitor_select(self,s):self.app.set_target_monitor(self.monitor_names.index(s))
476 | 
477 |     def on_tiling_mode_change(self):
478 |         mode = self.tiling_mode_var.get()
479 |         self.app.set_tiling_mode(mode)
480 |         
481 |         # --- THIS IS THE FIX for Request #1 ---
482 |         # Explicitly redraw the canvas after mode has changed.
483 |         self.app._redraw_canvas_only()
484 | 
485 |         if hasattr(self, 'custom_options_frame'):
486 |             if mode == "custom":
487 |                 self.custom_options_frame.grid()
488 |             else:
489 |                 self.custom_options_frame.grid_remove()
490 | 
491 | 
492 |     # Replace this method in SettingsWindow
493 |     def on_cursor_mode_change(self):
494 |         mode = self.cursor_lock_mode_var.get()
495 |         self.app.set_cursor_lock_mode(mode)
496 |         
497 |         # Use grid()/grid_remove() to show/hide the custom control frame
498 |         if hasattr(self, 'custom_cursor_frame'):
499 |             if mode == "custom":
500 |                 self.custom_cursor_frame.grid()
501 |             else:
502 |                 self.custom_cursor_frame.grid_remove()
503 | 
504 |     def toggle_overlay_feature(self):self.app.set_feature_enabled('overlay',self.is_overlay_enabled_var.get())
505 |     def toggle_tiling_feature(self):self.app.set_feature_enabled('tiling',self.is_tiling_enabled_var.get())
506 |     def toggle_cursor_lock_feature(self):self.app.set_feature_enabled('cursor',self.is_cursor_lock_enabled_var.get())
507 | 
508 | 
509 | 
510 |     def _set_child_widgets_state(self, parent_widget, state='normal'):
511 |         """Recursively set the state of all child widgets."""
512 |         for child in parent_widget.winfo_children():
513 |             # Some widgets like Labels don't have a 'state' option.
514 |             try:
515 |                 # Exclude scrollbars from being disabled, as it looks bad.
516 |                 if 'scrollbar' not in child.winfo_class():
517 |                     child.configure(state=state)
518 |             except tk.TclError:
519 |                 pass # Widget does not have a 'state' property.
520 |             self._set_child_widgets_state(child, state=state)
521 | 
522 | 
523 | 
524 |     
525 |     def apply_hotkey(self):
526 |         if not self.app.set_hotkey(self.hotkey_var.get()):messagebox.showerror("Invalid Hotkey","Invalid hotkey.",parent=self);self.hotkey_var.set(self.app.hotkey)
527 |     def apply_hex_color(self,e=None):
528 |         c=self.color_var.get();
529 |         try:self.color_entry.winfo_rgb(c);self.app.set_overlay_color(c)
530 |         except tk.TclError:messagebox.showerror("Invalid Color",f"'{c}' is not a valid color code.",parent=self);self.color_var.set(self.app.overlay_color)
531 |     
532 | 
533 |     # Add this new helper method to the SettingsWindow class
534 | # Replace this entire helper method in the SettingsWindow class
535 |     def _create_description_label(self, parent, text):
536 |         """Creates a formatted description label using the grid manager."""
537 |         desc = ttk.Label(parent, text=text, wraplength=230, justify='left', style='Sub.TFrame')
538 |         
539 |         # --- THIS IS THE FIX ---
540 |         # Use grid() instead of pack() to be compatible with other layouts.
541 |         # We place it in the next available row at the bottom of the parent frame.
542 |         next_row = parent.grid_size()[1]
543 |         desc.grid(row=next_row, column=0, sticky='ew', pady=(10, 0))
544 | 
545 | 
546 |     def on_close(self):self.app.settings_window=None;self.destroy()
547 | 
548 | 
549 | 
550 | class DisplayZoneManager:
551 | 
552 |     EVENT_SYSTEM_MOVESIZE_END = 0x000B
553 |     
554 |     
555 |     def __init__(self, root):
556 |         self.tk_root = root; self.settings_window = None; self.tiling_event_hook_thread = None
557 |         self.enforcement_thread = None; self.managed_windows = []; self.overlay_window = None
558 |         self.WinEventProc = ctypes.WINFUNCTYPE(None,wintypes.HANDLE,wintypes.DWORD,wintypes.HWND,wintypes.LONG,wintypes.LONG,wintypes.DWORD,wintypes.DWORD)
559 |         self.tiling_event_proc = self.WinEventProc(self._tiling_event_callback)
560 |         self.layout_manager = LayoutManager(); self.overlay_rect=self.tiling_rect=self.cursor_clip_rect=None
561 | 
562 |         self._load_config()
563 |         self._create_tkinter_overlay() # Use Tkinter-based overlay
564 | 
565 |         if self.is_tiling_enabled: self._start_tiling_hooks()
566 |         self._start_enforcement_loop()
567 |         self.tk_root.after_idle(self.recalculate_geometry) # Defer initial calculation
568 |         self._register_initial_hotkey()
569 | 
570 |     def _load_config(self):
571 |         self.all_monitors=self.get_all_monitors(); self.target_monitor_index=0
572 |         try:
573 |             with open(CONFIG_FILE,'r')as f: cfg=json.load(f)
574 |             for k,v in cfg.items(): setattr(self,k,v)
575 |         except (FileNotFoundError,json.JSONDecodeError): self._set_default_config()
576 | 
577 |     def _set_default_config(self):
578 |         mon=self.all_monitors[self.target_monitor_index]['Rect']; l,_,r,_=mon; w=r-l
579 |         self.is_overlay_enabled,self.is_tiling_enabled,self.is_cursor_lock_enabled=False,False,False
580 |         self.tiling_mode,self.cursor_lock_mode='full','overlay'
581 |         self.overlay_boundary_x,self.tiling_start_x,self.tiling_end_x,self.cursor_lock_x=l+w//4,l+w//4,l+w*3//4,l+w//2
582 |         self.hotkey,self.overlay_color,self.overlay_opacity=DEFAULT_HOTKEY,DEFAULT_OVERLAY_COLOR,DEFAULT_OVERLAY_OPACITY
583 | 
584 |     def save_config(self):
585 |         cfg={k:v for k,v in self.__dict__.items() if isinstance(v,(bool,str,int,float)) and k!='all_monitors'}
586 |         os.makedirs(CONFIG_DIR,exist_ok=True);open(CONFIG_FILE,'w').write(json.dumps(cfg,indent=4))
587 | 
588 |     def _trigger_full_ui_update(self):
589 |         if self.settings_window and self.settings_window.winfo_exists():self.settings_window.update_all_ui_sections()
590 |     def _redraw_canvas_only(self):
591 |         if self.settings_window and self.settings_window.winfo_exists():self.settings_window.update_canvas()
592 | 
593 |     def set_feature_enabled(self, feature, enabled):
594 |         if feature == 'overlay':
595 |             self.is_overlay_enabled = enabled
596 |         elif feature == 'tiling':
597 |             self.is_tiling_enabled = enabled
598 |             if not enabled: # If tiling is disabled, clear the managed windows
599 |                 self.managed_windows.clear()
600 |         elif feature == 'cursor':
601 |             self.is_cursor_lock_enabled = enabled
602 |         
603 |         self.recalculate_geometry()
604 |         self.retile_zone()
605 |         
606 |         # --- THIS IS THE FIX for Request #2 ---
607 |         # Explicitly redraw the canvas to show/hide tiling zones immediately.
608 |         self._redraw_canvas_only()
609 |         
610 |         self._trigger_full_ui_update()
611 | 
612 |     def set_overlay_boundary(self,v):self.overlay_boundary_x=int(v);self.recalculate_geometry();self.retile_zone();self._redraw_canvas_only()
613 | 
614 |     # Replace this method
615 |     def set_tiling_start(self,v):
616 |         self.tiling_start_x = int(v)
617 |         self.recalculate_geometry_and_retile()
618 |         self._redraw_canvas_only() # <-- ADD THIS LINE
619 | 
620 |     # Replace this method
621 |     def set_tiling_end(self,v):
622 |         self.tiling_end_x = int(v)
623 |         self.recalculate_geometry_and_retile()
624 |         self._redraw_canvas_only() # <-- ADD THIS LINE
625 |     
626 |     def set_cursor_lock_boundary(self,v):self.cursor_lock_x=int(v);self.recalculate_geometry();self._redraw_canvas_only()
627 | 
628 |     # NEW, CORRECTED METHOD
629 |     def set_tiling_mode(self, m):
630 |         self.tiling_mode = m
631 |         self.recalculate_geometry_and_retile()
632 |         # We no longer call self._trigger_full_ui_update() here.
633 |     
634 |     # NEW, CORRECTED METHOD
635 |     def set_cursor_lock_mode(self, m):
636 |         self.cursor_lock_mode = m
637 |         self.recalculate_geometry()
638 |         # DO NOT trigger a full UI update here. The SettingsWindow will handle its own state.
639 |         self._redraw_canvas_only() # Just redraw the canvas, which is safe.
640 | 
641 | 
642 |     def set_target_monitor(self,i):
643 |         if self.settings_window:self.settings_window.destroy();self.settings_window=None
644 |         self.target_monitor_index=i;self._set_default_config()
645 |         self.recalculate_geometry_and_retile();self.show_settings_window()
646 | 
647 |     def set_overlay_color(self,c):self.overlay_color=c;self._update_overlay_visuals();self._trigger_full_ui_update()
648 |     def set_overlay_opacity(self,o):self.overlay_opacity=o;self._update_overlay_visuals()
649 | 
650 |     def recalculate_geometry(self):
651 |         mon=self.all_monitors[self.target_monitor_index]['Rect'];l,t,r,b=mon;h=b-t
652 |         self.overlay_rect,self.tiling_rect = None,None
653 |         if self.is_overlay_enabled:self.overlay_rect = (l, t, self.overlay_boundary_x - l, h)
654 |         if self.is_tiling_enabled:
655 |             s_x,e_x=(self.overlay_boundary_x,r)if self.tiling_mode=='full'and self.is_overlay_enabled else(l,r)if self.tiling_mode=='full'else(min(self.tiling_start_x,self.tiling_end_x),max(self.tiling_start_x,self.tiling_end_x))
656 |             self.tiling_rect=(s_x, t, e_x - s_x, h)
657 |         self._update_overlay_visuals();self._update_cursor_clip()
658 |     def recalculate_geometry_and_retile(self):self.recalculate_geometry();self.retile_zone()
659 | 
660 |     def _start_enforcement_loop(self):
661 |         if not self.enforcement_thread or not self.enforcement_thread.is_alive():
662 |             self.enforcement_thread=threading.Thread(target=self._enforcement_loop,daemon=True)
663 |             self.enforcement_thread.start()
664 | 
665 |     def _enforcement_loop(self):
666 |         while True:
667 |             if self.is_cursor_lock_enabled and self.cursor_clip_rect:
668 |                 try:win32api.ClipCursor(self.cursor_clip_rect)
669 |                 except win32api.error:pass
670 |             time.sleep(0.25)
671 | 
672 |     def _unclip_cursor(self):
673 |         try:
674 |             full=(win32api.GetSystemMetrics(76),win32api.GetSystemMetrics(77),win32api.GetSystemMetrics(78),win32api.GetSystemMetrics(79))
675 |             win32api.ClipCursor((full[0],full[1],full[0]+full[2],full[1]+full[3]))
676 |         except win32api.error:pass
677 | 
678 |     def _update_cursor_clip(self):
679 |         if not self.is_cursor_lock_enabled:self._unclip_cursor();self.cursor_clip_rect=None;return
680 |         target_mon = self.all_monitors[self.target_monitor_index]; primary_handle=next((m['Handle']for m in self.all_monitors if m['is_primary']), target_mon['Handle'])
681 |         wall_x = self.overlay_boundary_x if self.cursor_lock_mode=='overlay' and self.is_overlay_enabled else self.cursor_lock_x
682 |         usable_area = (wall_x, target_mon['Rect'][1], target_mon['Rect'][2], target_mon['Rect'][3])
683 |         if primary_handle==target_mon['Handle']:self.cursor_clip_rect=usable_area
684 |         else:
685 |             primary_rect = win32api.GetMonitorInfo(primary_handle)['Monitor']
686 |             self.cursor_clip_rect=(min(primary_rect[0], usable_area[0]),min(primary_rect[1],usable_area[1]),max(primary_rect[2],usable_area[2]),max(primary_rect[3],usable_area[3]))
687 | 
688 | 
689 | 
690 |     def get_all_eligible_windows(self):
691 |         """Enumerates all top-level windows and returns a list of (hwnd, title)
692 |         tuples for those that are manageable."""
693 |         eligible_windows = []
694 |         def enum_callback(hwnd, lParam):
695 |             if self.is_window_manageable(hwnd):
696 |                 title = win32gui.GetWindowText(hwnd)
697 |                 eligible_windows.append((hwnd, title))
698 |             return True # Continue enumeration
699 |         
700 |         win32gui.EnumWindows(enum_callback, None)
701 |         return sorted(eligible_windows, key=lambda item: item[1].lower())
702 | 
703 | 
704 | 
705 |     def _start_tiling_hooks(self):
706 |         if not self.tiling_event_hook_thread or not self.tiling_event_hook_thread.is_alive():self.tiling_event_hook_thread=threading.Thread(target=self._tiling_event_loop,daemon=True);self.tiling_event_hook_thread.start()
707 |     def _stop_tiling_hooks(self):
708 |         if self.tiling_event_hook_thread:self.is_tiling_enabled=False;self.tiling_event_hook_thread.join(timeout=1.5);self.managed_windows.clear()
709 | 
710 |     def _tiling_event_loop(self):
711 |         pythoncom.CoInitialize()
712 |         user32 = ctypes.windll.user32
713 |         
714 |         # More reliable and specific event hooks
715 |         events_to_hook = [
716 |             win32con.EVENT_OBJECT_SHOW,
717 |             win32con.EVENT_OBJECT_HIDE,
718 |             win32con.EVENT_OBJECT_DESTROY,
719 |             self.EVENT_SYSTEM_MOVESIZE_END, # <-- CORRECTED
720 |         ]
721 | 
722 |         hooks = []
723 |         for event in events_to_hook:
724 |             # Note: The event range in SetWinEventHook is [event, event] (inclusive)
725 |             hook = user32.SetWinEventHook(event, event, 0, self.tiling_event_proc, 0, 0, 0)
726 |             if hook:
727 |                 hooks.append(hook)
728 |         
729 |         print(f"Tiling hooks installed: {len(hooks)} active.")
730 |         
731 |         while self.is_tiling_enabled:
732 |             pythoncom.PumpWaitingMessages()
733 |             time.sleep(0.1)
734 | 
735 |         for h in hooks:
736 |             if h:
737 |                 user32.UnhookWinEvent(h)
738 |         pythoncom.CoUninitialize()
739 |         print("Tiling hooks uninstalled.")
740 | 
741 |     def _tiling_event_callback(self, hWinEventHook, event, hwnd, idObject, idChild, dwEventThread, dwmsEventTime):
742 |         # ... (the first part of the function is unchanged) ...
743 | 
744 |         was_managed = hwnd in self.managed_windows
745 |         is_in_zone = self.is_window_in_tiling_zone(hwnd)
746 |         needs_retile = False
747 | 
748 |         # --- Tiling Logic ---
749 |         if event in (win32con.EVENT_OBJECT_HIDE, win32con.EVENT_OBJECT_DESTROY):
750 |             # A window was hidden or closed, remove it if we were managing it.
751 |             if was_managed:
752 |                 self.managed_windows.remove(hwnd)
753 |                 needs_retile = True
754 |         
755 |         elif event in (win32con.EVENT_OBJECT_SHOW, self.EVENT_SYSTEM_MOVESIZE_END): # <-- CORRECTED
756 |             # A window appeared or finished moving.
757 |             if is_in_zone and not was_managed:
758 |                 # It's IN the zone and we WEREN'T managing it: add it.
759 |                 self.managed_windows.append(hwnd)
760 |                 needs_retile = True
761 |             elif not is_in_zone and was_managed:
762 |                 # It's OUT of the zone and we WERE managing it: remove it.
763 |                 self.managed_windows.remove(hwnd)
764 |                 needs_retile = True
765 | 
766 |         if needs_retile:
767 |             self.retile_zone()
768 | 
769 |     def retile_zone(self):
770 |         # We now use self.managed_windows directly. The layout manager will
771 |         # get all selected windows, even if they are minimized.
772 |         windows_to_tile = self.managed_windows
773 |         
774 |         if not self.is_tiling_enabled or not self.tiling_rect or not windows_to_tile:
775 |             return
776 | 
777 |         # The sorting order of `windows_to_tile` (from user selection) is preserved.
778 |         positions = self.layout_manager.tile(windows_to_tile, self.tiling_rect)
779 |         
780 |         if positions:
781 |             user32 = ctypes.windll.user32
782 |             # The Begin/EndDeferWindowPos combo prevents flicker by applying all changes at once.
783 |             hDWP = user32.BeginDeferWindowPos(len(positions))
784 |             flags = win32con.SWP_NOZORDER | win32con.SWP_NOOWNERZORDER | win32con.SWP_NOACTIVATE
785 | 
786 |             if hDWP:
787 |                 for hwnd, (x, y, w, h) in positions.items():
788 |                     # SW_RESTORE (9) will un-minimize the window if needed.
789 |                     win32gui.ShowWindow(hwnd, win32con.SW_RESTORE)
790 |                     user32.DeferWindowPos(hDWP, hwnd, 0, x, y, w, h, flags)
791 |                 user32.EndDeferWindowPos(hDWP)
792 | 
793 | 
794 | 
795 | 
796 | 
797 | 
798 |     # Add this method inside the DisplayZoneManager class
799 |     def get_icon_for_hwnd(self, hwnd):
800 |         # We'll cache icons to improve performance and avoid memory issues
801 |         if not hasattr(self, 'icon_cache'):
802 |             self.icon_cache = {}
803 |         if hwnd in self.icon_cache:
804 |             return self.icon_cache[hwnd]
805 | 
806 |         # Constants for icon retrieval
807 |         ICON_SMALL = 0
808 |         ICON_BIG = 1
809 |         GCL_HICONSM = -34
810 |         WM_GETICON = 0x007F
811 | 
812 |         hIcon = None
813 |         try:
814 |             # Send a message to the window to get its icon handle
815 |             result = ctypes.windll.user32.SendMessageTimeoutW(hwnd, WM_GETICON, ICON_SMALL, 0, 2, 500, ctypes.pointer(ctypes.c_size_t()))
816 |             if result: hIcon = result
817 |             
818 |             if not hIcon: # Fallback 1: Try big icon
819 |                 result = ctypes.windll.user32.SendMessageTimeoutW(hwnd, WM_GETICON, ICON_BIG, 0, 2, 500, ctypes.pointer(ctypes.c_size_t()))
820 |                 if result: hIcon = result
821 | 
822 |             if not hIcon: # Fallback 2: Get icon from the window class
823 |                 hIcon = ctypes.windll.user32.GetClassLongPtrW(hwnd, GCL_HICONSM)
824 | 
825 |             if not hIcon: # If we still have no icon, we can't proceed
826 |                 self.icon_cache[hwnd] = None
827 |                 return None
828 |                 
829 |             # --- Convert HICON to Tk PhotoImage ---
830 |             icon_info = win32gui.GetIconInfo(hIcon)
831 |             if not icon_info: return None
832 |             
833 |             hdc = win32gui.GetDC(0)
834 |             mem_dc = win32gui.CreateCompatibleDC(hdc)
835 |             bmp = win32gui.CreateCompatibleBitmap(hdc, 16, 16)
836 |             win32gui.SelectObject(mem_dc, bmp)
837 |             
838 |             # Draw the icon onto the memory bitmap
839 |             ctypes.windll.user32.DrawIconEx(mem_dc, 0, 0, hIcon, 16, 16, 0, 0, 3) # DI_NORMAL
840 | 
841 |             # Create a Pillow image from the raw bitmap data
842 |             bitmap_bits = win32gui.GetBitmapBits(bmp, True)
843 |             img = Image.frombuffer('RGBA', (16, 16), bitmap_bits, 'raw', 'BGRA', 0, 1)
844 | 
845 |             # Convert to PhotoImage and cache it
846 |             photo_img = ImageTk.PhotoImage(image=img)
847 |             self.icon_cache[hwnd] = photo_img
848 | 
849 |             # CRITICAL: Clean up GDI objects
850 |             win32gui.DeleteObject(bmp)
851 |             win32gui.DeleteDC(mem_dc)
852 |             win32gui.ReleaseDC(0, hdc)
853 |             win32gui.DestroyIcon(icon_info[0])
854 |             win32gui.DestroyIcon(icon_info[1])
855 | 
856 |             return photo_img
857 | 
858 |         except Exception as e:
859 |             # print(f"Icon error for {hwnd}: {e}") # for debugging
860 |             self.icon_cache[hwnd] = None
861 |             return None
862 | 
863 | 
864 | 
865 | 
866 | 
867 | 
868 | 
869 | 
870 | 
871 |     def is_window_manageable(self,hwnd):
872 |         if not hwnd or not win32gui.IsWindowVisible(hwnd) or win32gui.GetParent(hwnd)!=0 or not win32gui.GetWindowText(hwnd):return False
873 |         if not(win32gui.GetWindowLong(hwnd,-16)&12582912):return False
874 |         try:mon_h=win32api.MonitorFromWindow(hwnd,1);mon_r=win32api.GetMonitorInfo(mon_h)['Monitor'];return win32gui.GetWindowRect(hwnd)!=mon_r
875 |         except:return False
876 |     def is_window_in_tiling_zone(self,hwnd):
877 |         if not self.tiling_rect or not win32gui.IsWindowVisible(hwnd):return False
878 |         try:l,_,r,_=win32gui.GetWindowRect(hwnd);cx=l+(r-l)//2
879 |         except:return False
880 |         tz_x,_,tz_w,_=self.tiling_rect;return tz_x<=cx<=(tz_x+tz_w)
881 | 
882 |     def _create_tkinter_overlay(self):
883 |         if self.overlay_window and self.overlay_window.winfo_exists(): return
884 |         self.overlay_window = tk.Toplevel(self.tk_root)
885 |         self.overlay_window.overrideredirect(True)
886 |         self.overlay_window.attributes("-topmost", True)
887 |         self.overlay_window.attributes("-disabled", True) # Make window click-through
888 |         self.overlay_window.withdraw()
889 | 
890 |     def _destroy_tkinter_overlay(self):
891 |         if self.overlay_window and self.overlay_window.winfo_exists():
892 |             self.overlay_window.destroy()
893 |         self.overlay_window = None
894 | 
895 |     def _update_overlay_visuals(self):
896 |         if not self.overlay_window or not self.overlay_window.winfo_exists(): return
897 |         if self.overlay_rect and self.is_overlay_enabled:
898 |             x, y, w, h = self.overlay_rect
899 |             w, h = max(1, w), max(1, h)
900 |             self.overlay_window.geometry(f"{w}x{h}+{x}+{y}")
901 |             self.overlay_window.configure(bg=self.overlay_color)
902 |             self.overlay_window.attributes("-alpha", self.overlay_opacity / 100.0)
903 |             self.overlay_window.deiconify()
904 |         else:
905 |             self.overlay_window.withdraw()
906 | 
907 |     def get_all_monitors(self):return[{'Handle':h,'Rect':r,'is_primary':win32api.GetMonitorInfo(h).get('Flags')==1} for h,_,r in win32api.EnumDisplayMonitors()]
908 |     def _register_initial_hotkey(self):
909 |         try:keyboard.add_hotkey(self.hotkey,self.show_settings_window,suppress=True)
910 |         except Exception as e:messagebox.showwarning("Hotkey Error",f"Could not register '{self.hotkey}': {e}")
911 | 
912 |     def set_hotkey(self,new):
913 |         try:keyboard.remove_hotkey(self.hotkey)
914 |         except:pass
915 |         try:keyboard.add_hotkey(new,self.show_settings_window,suppress=True);self.hotkey=new;return True
916 |         except:
917 |             try:keyboard.add_hotkey(self.hotkey,self.show_settings_window,suppress=True)
918 |             except:pass
919 |             return False
920 | 
921 |     def cleanup(self):
922 |         print("Cleaning up...");self.is_cursor_lock_enabled=False;self.is_tiling_enabled=False
923 |         self._unclip_cursor();self._stop_tiling_hooks()
924 |         if self.enforcement_thread and self.enforcement_thread.is_alive(): self.enforcement_thread.join(timeout=0.5)
925 |         self.tk_root.after(1, self._destroy_tkinter_overlay)
926 |         keyboard.unhook_all();self.save_config();print("Cleanup complete.")
927 | 
928 |     def show_settings_window(self):
929 |         if not self.settings_window or not self.settings_window.winfo_exists():self.settings_window=SettingsWindow(self.tk_root,self)
930 |         else:self.settings_window.deiconify();self.settings_window.focus_force()
931 | 
932 | # --- MAIN EXECUTION ---
933 | # Replace the entire main() function at the end of the script
934 | 
935 | def main():
936 |     # Set DPI awareness for sharp UI rendering
937 |     try:
938 |         ctypes.windll.shcore.SetProcessDpiAwareness(1)
939 |     except (AttributeError, OSError):
940 |         pass # Not available on older Windows versions
941 | 
942 |     root = tk.Tk()
943 |     root.withdraw()
944 |     app = DisplayZoneManager(root)
945 | 
946 |     # Set the icon for the root Tk window. This ensures any dialogs
947 |     # (like messageboxes) or future windows will inherit the icon.
948 |     # It also helps set the taskbar icon when the settings window is open.
949 |     try:
950 |         # Assumes 'icon.ico' is in the same directory as the script
951 |         root.iconbitmap('icon.ico')
952 |     except tk.TclError:
953 |         print("Warning: 'icon.ico' not found. Using default icon.")
954 | 
955 | 
956 |     def on_quit(icon, item):
957 |         app.cleanup()
958 |         icon.stop()
959 | 
960 |     def create_tray_icon(app_instance):
961 |         # --- THIS IS THE FIX (PART 2) ---
962 |         # Replace the procedurally generated image with your .ico file
963 |         try:
964 |             image = Image.open("icon.ico")
965 |         except FileNotFoundError:
966 |             # Fallback to the old image if icon.ico is not found
967 |             print("Warning: 'icon.ico' not found. Using default tray icon.")
968 |             image = Image.new('RGB', (64, 64), 'black')
969 |             draw = ImageDraw.Draw(image)
970 |             draw.rectangle((20, 20, 44, 44), outline='white', width=4)
971 |             draw.line((32, 0, 32, 64), fill='white', width=2)
972 |         
973 |         tooltip_text = f"{APP_NAME} | Hotkey: {app_instance.hotkey}"
974 | 
975 |         menu = Menu(
976 |             item('Settings...', app_instance.show_settings_window, default=True),
977 |             Menu.SEPARATOR,
978 |             item('Quit', on_quit)
979 |         )
980 |         
981 |         icon = Icon(APP_NAME, image, tooltip_text, menu)
982 |         icon.run()
983 | 
984 |     threading.Thread(target=create_tray_icon, args=(app,), daemon=True).start()
985 |     print(f"{APP_NAME} is running.")
986 |     root.mainloop()
987 |     print(f"{APP_NAME} has shut down.")
988 | 
989 | if __name__ == "__main__":
990 |     main()


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