Right-click a panadapter title bar or click the arrow button to
pop out a panadapter into its own floating window. Dock returns it to
the PanadapterStack splitter at its original position.

- Add popOutRequested/dockRequested signals and pop-out button to
  PanadapterApplet title bar with context menu support
- Add floatPanadapter/dockPanadapter/dockAll methods to PanadapterStack
  using FloatingAppletWindow (reused from PR aethersdr#916)
- Auto-dock all floating pans before layout rearrange or pan removal
- Persist float state per-pan via AppSettings; restore on reconnect
- Splitter re-insertion tracks original index for correct dock position

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

…#916)

Each applet in the AppletPanel can now be detached into its own floating
window and re-docked at any time. Position and size persist across sessions
and survive dock/undock cycles.

## What's new

**FloatingAppletWindow** (new class, src/gui/FloatingAppletWindow.h/.cpp)
- Qt::Window | Qt::Tool widget hosting a single detached applet
- Custom title bar with "↩ Dock" button; closing the window re-docks
  rather than losing the applet
- Geometry saved to AppSettings using screen name + screen-relative
  coordinates (more resilient than QWidget::saveGeometry() binary blob):
    FloatingApplet_<ID>_Screen  — screen name, stable across reboots
    FloatingApplet_<ID>_X/Y     — screen-relative position
    FloatingApplet_<ID>_W/H     — window size
- 400 ms debounce timer saves geometry on every resize/move without
  hammering AppSettings on each pixel
- Explicit save on dock and on app shutdown (main-window close path)
- Wayland guard: position restore is skipped on Wayland compositors that
  own window placement; size is always restored
- Off-screen clamp: if the saved monitor is disconnected, the window is
  clamped to the nearest available screen geometry

**AppletPanel changes**
- AppletEntry gains a `floating` bool
- floatApplet(id): reparents applet widget into FloatingAppletWindow,
  hides panel wrapper, persists IsFloating = True
- dockApplet(id): reparents applet widget back into wrapper,
  destroys floating window, persists IsFloating = False
- isAppletFloating(id): public helper used by AppletTitleBar context menu
- AppletTitleBar: right-click context menu ("Pop out" / "↩ Dock") using
  QMenu::popup() — no nested event loop
- Toggle button while floating: raises/hides the floating window instead
  of the docked wrapper
- Floating state restored at startup via QTimer::singleShot(0) so the
  window system is ready before windows are shown
- setTunerVisible(false), setAmpVisible(false), setAgVisible(false) each
  call dockApplet() first to prevent orphaned floating windows when a
  conditional device (TGXL, amp, Antenna Genius) disconnects
- FloatingAppletWindow created with AppletPanel as Qt parent so Qt's
  shouldQuit() correctly ignores tool windows when the last real window
  closes — fixes app not exiting when floating windows were open
- show() before restoreGeometry() (with 50 ms singleShot delay) so the
  window manager maps the window before position hints are applied

**CMakeLists.txt**
- Added src/gui/FloatingAppletWindow.cpp to GUI_SOURCES

## Cross-platform notes
- Windows / macOS / Linux X11: full position + size persistence
- Linux Wayland / WSL2 (WSLg): size persists; position is compositor-
  controlled. Use QT_QPA_PLATFORM=xcb on WSL2 for full behaviour via
  XWayland.

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

The S-Meter section can now be detached into a floating window and
re-docked exactly like all other applets — using the same
FloatingAppletWindow infrastructure, AppSettings geometry persistence,
and PR aethersdr#916 / aethersdr#985 bug fixes (drift, WM centering, shutdown race).

## What changed

### src/gui/AppletPanel.h
- Added `QWidget* m_sMeterContent` — the floatable content container
  (SMeterWidget + TX/RX select row + Peak Hold row), analogous to
  the applet widget held at layout index 1 in every other wrapper.
- Added private `floatSMeter()` and `dockSMeter()` methods.

### src/gui/AppletPanel.cpp

**S-Meter construction:**
- `AppletTitleBar("S-Meter", "VU", this)` — passes the panel pointer
  so the right-click context menu ("⬈ Pop out" / "↩ Dock") is active.
- Introduced `m_sMeterContent` QWidget with its own QVBoxLayout as
  layout index 1 of `m_sMeterSection` (after the title bar), so the
  extractor logic in `floatSMeter()` / `dockSMeter()` is identical to
  every other applet.

**ANLG toggle button:**
- Updated to the float-aware pattern used by TUN / AMP / AG:
  raises/hides the floating window when VU is floating, re-floats
  via `QTimer::singleShot(0)` when IsFloating is persisted but no
  window is open yet (toggle-off → toggle-on cycle fix from aethersdr#985).

**`isAppletFloating()`:**
- Added early return for `"VU"`: checks `m_floatingWindows.contains("VU")`
  directly (VU is not in `m_appletOrder`).

**`floatApplet()` / `dockApplet()`:**
- Added `if (id == "VU")` dispatch at the top of each, delegating to
  `floatSMeter()` / `dockSMeter()`.

**`floatSMeter()` / `dockSMeter()`:**
- Mirror `floatApplet()` / `dockApplet()` exactly: reparent content
  out of/back into `m_sMeterSection`, create/destroy
  `FloatingAppletWindow`, persist `FloatingApplet_VU_IsFloating`,
  save geometry on dock.

**Startup restore:**
- After the existing `m_appletOrder` restore loop, added a
  `QTimer::singleShot(0)` restore for `"VU"` so the S-Meter reopens
  floating if it was floating when the app last closed.

Closes aethersdr#993

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

The S-Meter section can now be detached into a floating window and
re-docked exactly like all other applets — using the same
FloatingAppletWindow infrastructure, AppSettings geometry persistence,
and PR aethersdr#916 / aethersdr#985 bug fixes (drift, WM centering, shutdown race).

## What changed

### src/gui/AppletPanel.h
- Added `QWidget* m_sMeterContent` — the floatable content container
  (SMeterWidget + TX/RX select row + Peak Hold row), analogous to
  the applet widget held at layout index 1 in every other wrapper.
- Added private `floatSMeter()` and `dockSMeter()` methods.

### src/gui/AppletPanel.cpp

**S-Meter construction:**
- `AppletTitleBar("S-Meter", "VU", this)` — passes the panel pointer
  so the right-click context menu ("⬈ Pop out" / "↩ Dock") is active.
- Introduced `m_sMeterContent` QWidget with its own QVBoxLayout as
  layout index 1 of `m_sMeterSection` (after the title bar), so the
  extractor logic in `floatSMeter()` / `dockSMeter()` is identical to
  every other applet.

**ANLG toggle button:**
- Updated to the float-aware pattern used by TUN / AMP / AG:
  raises/hides the floating window when VU is floating, re-floats
  via `QTimer::singleShot(0)` when IsFloating is persisted but no
  window is open yet (toggle-off → toggle-on cycle fix from aethersdr#985).

**`isAppletFloating()`:**
- Added early return for `"VU"`: checks `m_floatingWindows.contains("VU")`
  directly (VU is not in `m_appletOrder`).

**`floatApplet()` / `dockApplet()`:**
- Added `if (id == "VU")` dispatch at the top of each, delegating to
  `floatSMeter()` / `dockSMeter()`.

**`floatSMeter()` / `dockSMeter()`:**
- Mirror `floatApplet()` / `dockApplet()` exactly: reparent content
  out of/back into `m_sMeterSection`, create/destroy
  `FloatingAppletWindow`, persist `FloatingApplet_VU_IsFloating`,
  save geometry on dock.

**Startup restore:**
- After the existing `m_appletOrder` restore loop, added a
  `QTimer::singleShot(0)` restore for `"VU"` so the S-Meter reopens
  floating if it was floating when the app last closed.

**dockSMeter() — use m_sMeterContent directly (agent review fix)**
The original used a fragile layout-walk to recover m_sMeterContent from
FloatingAppletWindow's internal layout. If any itemAt() returned null,
appletWidget would be null while the code still called win->deleteLater(),
destroying m_sMeterContent and all its children (m_sMeter, m_txSelect,
m_rxSelect, peak-hold widgets) — crash on next signal-level update.

Fix: use the named member directly. Reparent m_sMeterContent into
m_sMeterSection before deleteLater() so Qt's parent-chain destruction
cannot reach it.

**.gitignore — drop Visual Studio artifacts (agent review fix)**
/.vs and /out/install/x64-Debug are Windows VS IDE artifacts; they belong
in ~/.gitignore_global, not the project-wide .gitignore.

Closes aethersdr#993

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

The S-Meter section can now be detached into a floating window and
re-docked exactly like all other applets — using the same
FloatingAppletWindow infrastructure, AppSettings geometry persistence,
and PR aethersdr#916 / aethersdr#985 bug fixes (drift, WM centering, shutdown race).

## What changed

### src/gui/AppletPanel.h
- Added `QWidget* m_sMeterContent` — the floatable content container
  (SMeterWidget + TX/RX select row + Peak Hold row), analogous to
  the applet widget held at layout index 1 in every other wrapper.
- Added private `floatSMeter()` and `dockSMeter()` methods.

### src/gui/AppletPanel.cpp

**S-Meter construction:**
- `AppletTitleBar("S-Meter", "VU", this)` — passes the panel pointer
  so the right-click context menu ("⬈ Pop out" / "↩ Dock") is active.
- Introduced `m_sMeterContent` QWidget with its own QVBoxLayout as
  layout index 1 of `m_sMeterSection` (after the title bar), so the
  extractor logic in `floatSMeter()` / `dockSMeter()` is identical to
  every other applet.

**ANLG toggle button:**
- Updated to the float-aware pattern used by TUN / AMP / AG:
  raises/hides the floating window when VU is floating, re-floats
  via `QTimer::singleShot(0)` when IsFloating is persisted but no
  window is open yet (toggle-off → toggle-on cycle fix from aethersdr#985).

**`isAppletFloating()`:**
- Added early return for `"VU"`: checks `m_floatingWindows.contains("VU")`
  directly (VU is not in `m_appletOrder`).

**`floatApplet()` / `dockApplet()`:**
- Added `if (id == "VU")` dispatch at the top of each, delegating to
  `floatSMeter()` / `dockSMeter()`.

**`floatSMeter()` / `dockSMeter()`:**
- Mirror `floatApplet()` / `dockApplet()` exactly: reparent content
  out of/back into `m_sMeterSection`, create/destroy
  `FloatingAppletWindow`, persist `FloatingApplet_VU_IsFloating`,
  save geometry on dock.

**Startup restore:**
- After the existing `m_appletOrder` restore loop, added a
  `QTimer::singleShot(0)` restore for `"VU"` so the S-Meter reopens
  floating if it was floating when the app last closed.

**dockSMeter() — use m_sMeterContent directly (agent review fix)**
The original used a fragile layout-walk to recover m_sMeterContent from
FloatingAppletWindow's internal layout. If any itemAt() returned null,
appletWidget would be null while the code still called win->deleteLater(),
destroying m_sMeterContent and all its children (m_sMeter, m_txSelect,
m_rxSelect, peak-hold widgets) — crash on next signal-level update.

Fix: use the named member directly. Reparent m_sMeterContent into
m_sMeterSection before deleteLater() so Qt's parent-chain destruction
cannot reach it.

**.gitignore — drop Visual Studio artifacts (agent review fix)**
/.vs and /out/install/x64-Debug are Windows VS IDE artifacts; they belong
in ~/.gitignore_global, not the project-wide .gitignore.

Closes aethersdr#993

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* Updated for vscode and visual studio ignore patterns for local windows development.

* Add pop-out/pop-in support for the S-Meter (VU) applet (#993)

The S-Meter section can now be detached into a floating window and
re-docked exactly like all other applets — using the same
FloatingAppletWindow infrastructure, AppSettings geometry persistence,
and PR #916 / #985 bug fixes (drift, WM centering, shutdown race).

## What changed

### src/gui/AppletPanel.h
- Added `QWidget* m_sMeterContent` — the floatable content container
  (SMeterWidget + TX/RX select row + Peak Hold row), analogous to
  the applet widget held at layout index 1 in every other wrapper.
- Added private `floatSMeter()` and `dockSMeter()` methods.

### src/gui/AppletPanel.cpp

**S-Meter construction:**
- `AppletTitleBar("S-Meter", "VU", this)` — passes the panel pointer
  so the right-click context menu ("⬈ Pop out" / "↩ Dock") is active.
- Introduced `m_sMeterContent` QWidget with its own QVBoxLayout as
  layout index 1 of `m_sMeterSection` (after the title bar), so the
  extractor logic in `floatSMeter()` / `dockSMeter()` is identical to
  every other applet.

**ANLG toggle button:**
- Updated to the float-aware pattern used by TUN / AMP / AG:
  raises/hides the floating window when VU is floating, re-floats
  via `QTimer::singleShot(0)` when IsFloating is persisted but no
  window is open yet (toggle-off → toggle-on cycle fix from #985).

**`isAppletFloating()`:**
- Added early return for `"VU"`: checks `m_floatingWindows.contains("VU")`
  directly (VU is not in `m_appletOrder`).

**`floatApplet()` / `dockApplet()`:**
- Added `if (id == "VU")` dispatch at the top of each, delegating to
  `floatSMeter()` / `dockSMeter()`.

**`floatSMeter()` / `dockSMeter()`:**
- Mirror `floatApplet()` / `dockApplet()` exactly: reparent content
  out of/back into `m_sMeterSection`, create/destroy
  `FloatingAppletWindow`, persist `FloatingApplet_VU_IsFloating`,
  save geometry on dock.

**Startup restore:**
- After the existing `m_appletOrder` restore loop, added a
  `QTimer::singleShot(0)` restore for `"VU"` so the S-Meter reopens
  floating if it was floating when the app last closed.

Closes #993

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* Add pop-out/pop-in support for the S-Meter (VU) applet (#993)

The S-Meter section can now be detached into a floating window and
re-docked exactly like all other applets — using the same
FloatingAppletWindow infrastructure, AppSettings geometry persistence,
and PR #916 / #985 bug fixes (drift, WM centering, shutdown race).

## What changed

### src/gui/AppletPanel.h
- Added `QWidget* m_sMeterContent` — the floatable content container
  (SMeterWidget + TX/RX select row + Peak Hold row), analogous to
  the applet widget held at layout index 1 in every other wrapper.
- Added private `floatSMeter()` and `dockSMeter()` methods.

### src/gui/AppletPanel.cpp

**S-Meter construction:**
- `AppletTitleBar("S-Meter", "VU", this)` — passes the panel pointer
  so the right-click context menu ("⬈ Pop out" / "↩ Dock") is active.
- Introduced `m_sMeterContent` QWidget with its own QVBoxLayout as
  layout index 1 of `m_sMeterSection` (after the title bar), so the
  extractor logic in `floatSMeter()` / `dockSMeter()` is identical to
  every other applet.

**ANLG toggle button:**
- Updated to the float-aware pattern used by TUN / AMP / AG:
  raises/hides the floating window when VU is floating, re-floats
  via `QTimer::singleShot(0)` when IsFloating is persisted but no
  window is open yet (toggle-off → toggle-on cycle fix from #985).

**`isAppletFloating()`:**
- Added early return for `"VU"`: checks `m_floatingWindows.contains("VU")`
  directly (VU is not in `m_appletOrder`).

**`floatApplet()` / `dockApplet()`:**
- Added `if (id == "VU")` dispatch at the top of each, delegating to
  `floatSMeter()` / `dockSMeter()`.

**`floatSMeter()` / `dockSMeter()`:**
- Mirror `floatApplet()` / `dockApplet()` exactly: reparent content
  out of/back into `m_sMeterSection`, create/destroy
  `FloatingAppletWindow`, persist `FloatingApplet_VU_IsFloating`,
  save geometry on dock.

**Startup restore:**
- After the existing `m_appletOrder` restore loop, added a
  `QTimer::singleShot(0)` restore for `"VU"` so the S-Meter reopens
  floating if it was floating when the app last closed.

**dockSMeter() — use m_sMeterContent directly (agent review fix)**
The original used a fragile layout-walk to recover m_sMeterContent from
FloatingAppletWindow's internal layout. If any itemAt() returned null,
appletWidget would be null while the code still called win->deleteLater(),
destroying m_sMeterContent and all its children (m_sMeter, m_txSelect,
m_rxSelect, peak-hold widgets) — crash on next signal-level update.

Fix: use the named member directly. Reparent m_sMeterContent into
m_sMeterSection before deleteLater() so Qt's parent-chain destruction
cannot reach it.

**.gitignore — drop Visual Studio artifacts (agent review fix)**
/.vs and /out/install/x64-Debug are Windows VS IDE artifacts; they belong
in ~/.gitignore_global, not the project-wide .gitignore.

Closes #993

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* Add pop-out/pop-in support for the S-Meter (VU) applet (#993)

The S-Meter section can now be detached into a floating window and
re-docked exactly like all other applets — using the same
FloatingAppletWindow infrastructure, AppSettings geometry persistence,
and PR #916 / #985 bug fixes (drift, WM centering, shutdown race).

## What changed

### src/gui/AppletPanel.h
- Added `QWidget* m_sMeterContent` — the floatable content container
  (SMeterWidget + TX/RX select row + Peak Hold row), analogous to
  the applet widget held at layout index 1 in every other wrapper.
- Added private `floatSMeter()` and `dockSMeter()` methods.

### src/gui/AppletPanel.cpp

**S-Meter construction:**
- `AppletTitleBar("S-Meter", "VU", this)` — passes the panel pointer
  so the right-click context menu ("⬈ Pop out" / "↩ Dock") is active.
- Introduced `m_sMeterContent` QWidget with its own QVBoxLayout as
  layout index 1 of `m_sMeterSection` (after the title bar), so the
  extractor logic in `floatSMeter()` / `dockSMeter()` is identical to
  every other applet.

**ANLG toggle button:**
- Updated to the float-aware pattern used by TUN / AMP / AG:
  raises/hides the floating window when VU is floating, re-floats
  via `QTimer::singleShot(0)` when IsFloating is persisted but no
  window is open yet (toggle-off → toggle-on cycle fix from #985).

**`isAppletFloating()`:**
- Added early return for `"VU"`: checks `m_floatingWindows.contains("VU")`
  directly (VU is not in `m_appletOrder`).

**`floatApplet()` / `dockApplet()`:**
- Added `if (id == "VU")` dispatch at the top of each, delegating to
  `floatSMeter()` / `dockSMeter()`.

**`floatSMeter()` / `dockSMeter()`:**
- Mirror `floatApplet()` / `dockApplet()` exactly: reparent content
  out of/back into `m_sMeterSection`, create/destroy
  `FloatingAppletWindow`, persist `FloatingApplet_VU_IsFloating`,
  save geometry on dock.

**Startup restore:**
- After the existing `m_appletOrder` restore loop, added a
  `QTimer::singleShot(0)` restore for `"VU"` so the S-Meter reopens
  floating if it was floating when the app last closed.

**dockSMeter() — use m_sMeterContent directly (agent review fix)**
The original used a fragile layout-walk to recover m_sMeterContent from
FloatingAppletWindow's internal layout. If any itemAt() returned null,
appletWidget would be null while the code still called win->deleteLater(),
destroying m_sMeterContent and all its children (m_sMeter, m_txSelect,
m_rxSelect, peak-hold widgets) — crash on next signal-level update.

Fix: use the named member directly. Reparent m_sMeterContent into
m_sMeterSection before deleteLater() so Qt's parent-chain destruction
cannot reach it.

**.gitignore — drop Visual Studio artifacts (agent review fix)**
/.vs and /out/install/x64-Debug are Windows VS IDE artifacts; they belong
in ~/.gitignore_global, not the project-wide .gitignore.

Closes #993

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>