Added App Icon

SUB Control/README.md

@@ -13,6 +13,7 @@ Install Python 3.11+ with the Python launcher, then run:
 ```
 
 The script creates a virtual environment and installs dependencies automatically.
+On first launch, it also adds a **SUB Control** desktop shortcut.
 Select a COM port and **Connect**, or choose **Demo Mode** to try it without hardware.
 Connection settings are under **•••**.
 

SUB Control/build_icon.py

@@ -0,0 +1,14 @@
+"""Package the original PNG in a Windows ICO without altering its pixels."""
+from pathlib import Path
+import struct
+
+root = Path(__file__).resolve().parent
+png = (root / "assets" / "sub-control-icon.png").read_bytes()
+if png[:8] != b"\x89PNG\r\n\x1a\n":
+    raise ValueError("Icon source must be PNG")
+width, height = struct.unpack(">II", png[16:24])
+if not (1 <= width <= 256 and 1 <= height <= 256):
+    raise ValueError("Windows icon source must be at most 256 x 256")
+header = struct.pack("<HHH", 0, 1, 1)
+entry = struct.pack("<BBBBHHII", width % 256, height % 256, 0, 0, 1, 32, len(png), 22)
+(root / "assets" / "sub-control.ico").write_bytes(header + entry + png)

SUB Control/create_shortcut.ps1

@@ -0,0 +1,43 @@
+param([switch]$UpdateIcon)
+$ErrorActionPreference = 'Stop'
+
+$shortcutProject = $PSScriptRoot
+$shortcutMarker = Join-Path $shortcutProject 'runtime\desktop-shortcut-created.txt'
+if ((Test-Path -LiteralPath $shortcutMarker) -and -not $UpdateIcon) { return }
+
+try {
+    # Resolves the real Desktop, including a redirected/OneDrive Desktop.
+    $shortcutDesktop = [Environment]::GetFolderPath('DesktopDirectory')
+    if (-not $shortcutDesktop) { throw 'Windows Desktop folder is unavailable.' }
+    $shortcutPath = Join-Path $shortcutDesktop 'SUB Control.lnk'
+
+    # Never replace a shortcut the user already has.
+    if (-not (Test-Path -LiteralPath $shortcutPath)) {
+        $shortcutShell = New-Object -ComObject WScript.Shell
+        $shortcutLink = $shortcutShell.CreateShortcut($shortcutPath)
+        $shortcutLink.TargetPath = Join-Path $env:SystemRoot 'System32\WindowsPowerShell\v1.0\powershell.exe'
+        $shortcutLink.Arguments = '-NoProfile -WindowStyle Hidden -File "' + (Join-Path $shortcutProject 'run.ps1') + '"'
+        $shortcutLink.WorkingDirectory = $shortcutProject
+        $shortcutLink.Description = 'Launch SUB Control'
+        $shortcutLink.WindowStyle = 7
+        $shortcutIcon = Join-Path $shortcutProject 'assets\sub-control.ico'
+        if (Test-Path -LiteralPath $shortcutIcon) { $shortcutLink.IconLocation = "$shortcutIcon,0" }
+        $shortcutLink.Save()
+    } elseif ($UpdateIcon) {
+        $shortcutShell = New-Object -ComObject WScript.Shell
+        $shortcutLink = $shortcutShell.CreateShortcut($shortcutPath)
+        $expectedScript = '"' + (Join-Path $shortcutProject 'run.ps1') + '"'
+        if ($shortcutLink.Arguments.Contains($expectedScript)) {
+            $shortcutLink.IconLocation = (Join-Path $shortcutProject 'assets\sub-control.ico') + ',0'
+            $shortcutLink.Save()
+        } else {
+            throw 'Existing shortcut belongs to another installation; left unchanged.'
+        }
+    }
+
+    New-Item -ItemType Directory -Path (Split-Path -Parent $shortcutMarker) -Force | Out-Null
+    Set-Content -LiteralPath $shortcutMarker -Value $shortcutPath
+} catch {
+    # Desktop permissions must not prevent the controller from starting.
+    Write-Warning "Could not create the SUB Control desktop shortcut: $_"
+}

SUB Control/desktop_shortcut.py

@@ -0,0 +1,21 @@
+"""Best-effort Windows first-run shortcut, including direct Python launches."""
+import os
+from pathlib import Path
+import subprocess
+
+
+def ensure_desktop_shortcut():
+    if os.name != "nt":
+        return
+    root = Path(__file__).resolve().parent
+    if (root / "runtime" / "desktop-shortcut-created.txt").exists():
+        return
+    powershell = Path(os.environ["SystemRoot"]) / "System32/WindowsPowerShell/v1.0/powershell.exe"
+    try:
+        subprocess.run(
+            [str(powershell), "-NoProfile", "-NonInteractive", "-File", str(root / "create_shortcut.ps1")],
+            cwd=root, timeout=10, check=True, capture_output=True,
+            creationflags=subprocess.CREATE_NO_WINDOW,
+        )
+    except (OSError, subprocess.SubprocessError) as error:
+        print(f"Desktop shortcut setup skipped: {error}")

SUB Control/run.ps1

@@ -3,6 +3,8 @@ $ErrorActionPreference = "Stop"
 $projectRoot = Split-Path -Parent $MyInvocation.MyCommand.Path
 Set-Location -LiteralPath $projectRoot
 
+& (Join-Path $projectRoot 'create_shortcut.ps1')
+
 if (-not (Get-Command py -ErrorAction SilentlyContinue)) {
     throw "Python 3.11 or newer is required. Install Python from python.org, then run this script again."
 }

SUB Control/web_ui.py

@@ -585,6 +585,12 @@ def start_local_server(directory: Path) -> int:
 
 
 def main():
+    if os.name == "nt":
+        # Keep the running window separate from generic Python taskbar groups.
+        import ctypes
+        ctypes.windll.shell32.SetCurrentProcessExplicitAppUserModelID("SUBControl.Desktop")
+    from desktop_shortcut import ensure_desktop_shortcut
+    ensure_desktop_shortcut()
     api = ControlApi()
     api._migrate_legacy_model()
     project_root = Path(__file__).resolve().parent
@@ -602,7 +608,8 @@ def main():
     window.events.maximized += lambda: setattr(api, "maximized", True)
     window.events.restored += lambda: setattr(api, "maximized", False)
     try:
-        webview.start(debug=True)
+        icon_path = project_root / "assets" / "sub-control.ico"
+        webview.start(debug=True, icon=str(icon_path) if icon_path.is_file() else None)
     finally:
         api.close()