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noframe: drop the drag-by-surface -- it is a finishing step, not a mode

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Author's correction to the shape of yesterday's option.  The intended workflow
is: place the displays where you want them WITH their frames, quit, then edit
glass_layout.cfg to turn the frame off.  So a ,noframe window should be pinned,
not draggable -- removed the WM_NCHITTEST -> HTCAPTION handler that made the
surface a drag handle.

The arrangement being finished is the point: with no caption there is nothing
to drag it by, which is exactly what you want on a wall of monitors.  Delete
the flag to get the frame (and the dragging) back.

Unchanged and still needed: SaveLayout writes the flag back, because any later
drag of a FRAMED window rewrites the whole file and would otherwise strip it.

Re-verified live:
 - Heat MFD comes up with WS_CAPTION clear and answers WM_NCHITTEST on its
   surface with HTCLIENT (pinned) -- no window reports HTCAPTION any more.
 - Comm MFD (unflagged) keeps its caption.
 - A framed window's WM_EXITSIZEMOVE rewrote the file and BOTH ,noframe flags
   survived, with the new header explaining the arrange-first workflow.
 - surround / exploded / pod / dev boot and simulate clean.

Docs updated to describe the two-stage workflow rather than surface dragging:
the file's own header, environ.ini's BT_GLASS_LAYOUT block, context/
glass-cockpit.md and the ledger (which records the removed behaviour so the
next reader does not re-add it).

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Cyd
2026-07-29 11:26:11 -05:00
co-authored by Claude Opus 5
parent f5f4c6c198
commit aa788bc56d
4 changed files with 57 additions and 55 deletions
Download Patch File Download Diff File Expand all files Collapse all files
context/glass-cockpit.md
+16 -14
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@@ -141,27 +141,29 @@ analogue of TeslaRel410 `emulator/pod-launch`'s per-rig `--bridge-pos`/`--layout
### `,noframe` — per-window chrome removal (2026-07-29) [T2 live]
Append it to a window's line and that window loses its title bar and border (`WS_POPUP`) — for a
multi-monitor wall where the chrome is just noise:
Append it to a window's line and that window comes up with no title bar or border (`WS_POPUP`) —
for a multi-monitor wall where the chrome is just noise:
```
Heat MFD=1920,0,657,539,noframe
```
Hand-edited (the file is otherwise machine-written). Options are comma-separated after the
numbers and **unknown ones are ignored**, so an older build reading a newer file loses the option
but never the line — the `bindings.txt` grammar rule applied here.
**The workflow is deliberately two-stage, and this is the last step:** run with
`BT_GLASS_LAYOUT=save` and drag the windows where you want them (they have title bars, so it is
the normal sticky-layout flow) → quit → hand-edit the cfg and append `,noframe` to the ones you
want bare. From then on those windows are frameless **and pinned** — with no caption there is
nothing to drag them by, which is the point: the arrangement is finished. Delete the flag to get
the frame back.
Two consequences it has to carry, or the option would be a trap:
- **A frameless window has no title bar to drag** — which is the entire sticky-layout workflow.
So a `noframe` window is dragged **by its surface**: `WM_NCHITTEST` returns `HTCAPTION`
anywhere that is not a button and `HTCLIENT` over one, so buttons stay clickable and the drag
still ends in `WM_EXITSIZEMOVE` and still saves.
- **`SaveLayout` rewrites the whole file**, so it writes the flag back — otherwise the first save
after a drag would silently strip it.
Options are comma-separated after the numbers and **unknown ones are ignored**, so an older build
reading a newer file loses the option but never the line — the `bindings.txt` grammar rule
applied here.
The flag is read BEFORE frame sizing (a `LoadLayout(quiet)` pre-pass), because `AdjustWindowRect`
and therefore `ComputeLayout`'s ring placement depend on whether a window carries chrome.
The one thing it must not do is eat itself: **`SaveLayout` rewrites the WHOLE file** (any later
drag of a framed window triggers it), so it writes the flag back for every window carrying it.
And the flag is read BEFORE frame sizing (a `LoadLayout(quiet)` pre-pass), because
`AdjustWindowRect` — and therefore `ComputeLayout`'s ring placement — depends on whether a window
carries chrome.
Verified live: two flagged windows came up caption-less while the other five kept theirs, a click
still dispatched on the frameless radar (`CLICK 'Secondary / Radar' addr=0x18`), and a
docs/GLASS_COCKPIT.md
+16 -7
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@@ -777,13 +777,22 @@ Options are comma-separated after the four numbers and unknown ones are IGNORED,
reading a newer file loses the option but never the line (the bindings.txt grammar rule applied
here). Hand-edited; the file is otherwise machine-written.
### The two things that would have made it a trap
1. **A frameless window has no title bar to drag** -- which is the entire point of the sticky
layout. So a noframe window is dragged BY ITS SURFACE: `WM_NCHITTEST` returns `HTCAPTION`
anywhere that is not a button and `HTCLIENT` over one. Buttons stay clickable, and because
Windows drives the move, the drag still ends in `WM_EXITSIZEMOVE` -- so it still SAVES.
2. **SaveLayout rewrites the whole file**, so it writes the flag back. Without that the first
finished-drag after adding the option would have silently stripped it.
### The workflow is two-stage, on purpose
Arrange FIRST, strip chrome LAST:
1. run with `BT_GLASS_LAYOUT=save` and drag the windows where you want them (they have title
bars -- this is just the normal sticky-layout flow),
2. quit,
3. hand-edit the cfg and append `,noframe` to the ones you want bare.
From then on those windows come up frameless AND PINNED -- with no caption there is nothing to
drag them by, which is the point: the arrangement is finished. Delete the flag to re-frame.
(An earlier cut made noframe windows draggable by their surface via `WM_NCHITTEST`->`HTCAPTION`.
Removed at the author's direction: it is not an interactive mode, it is the finishing step.)
The one thing it must not do is eat itself: **SaveLayout rewrites the WHOLE file** -- any later
drag of a FRAMED window triggers it -- so it writes the flag back for every window that carries
one. Without that, the first drag after adding the option would silently strip it.
### Ordering
The flag is read BEFORE frame sizing (`LoadLayout(quiet)` pre-pass, then the normal pass after
engine/MUNGA_L4/L4GLASSWIN.cpp
+20 -30
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@@ -383,19 +383,22 @@ static void
//
// PER-LINE OPTION ",noframe" (2026-07-29): append it to a window's line and
// that window loses its title bar and border (WS_POPUP) -- for a clean
// multi-monitor wall where the chrome is just noise. Hand-edited; the file
// is otherwise machine-written.
// multi-monitor wall where the chrome is just noise.
//
// Heat MFD=1920,0,657,539,noframe
//
// Two consequences it has to carry, or the option would be a trap:
// - a frameless window has NO TITLE BAR TO DRAG, which is how the whole
// sticky-layout workflow works. So a noframe window is draggable BY ITS
// SURFACE (WM_NCHITTEST -> HTCAPTION anywhere that is not a button); the
// buttons stay clickable, and the drag still ends in WM_EXITSIZEMOVE so it
// still saves.
// - SaveLayout rewrites the whole file, so it must WRITE THE FLAG BACK or the
// first save after a drag would silently strip it.
// THE WORKFLOW IS DELIBERATELY TWO-STAGE, and the option is the last step:
// 1. run with BT_GLASS_LAYOUT=save and DRAG the windows where you want them
// (they have title bars, so this is the normal sticky-layout flow),
// 2. quit,
// 3. hand-edit the cfg and append ,noframe to the ones you want bare.
// From then on those windows come up frameless AND PINNED -- with no caption
// there is nothing to drag them by, which is the point: the arrangement is
// finished. Re-frame a window by deleting the flag.
//
// The one thing it must not do is eat itself: SaveLayout rewrites the WHOLE
// file (any later drag of a FRAMED window triggers it), so it writes the flag
// back for every window that carries it.
//###########################################################################
enum { LayoutOff = 0, LayoutLoad = 1, LayoutSave = 2 };
@@ -536,9 +539,13 @@ static void
fputs("# BT411 glass cockpit window layout (BT_GLASS_LAYOUT=save writes this\n"
"# on finished-drag/exit; =load restores it). <title>=<x>,<y>,<w>,<h>\n"
"# Append ,noframe to a line to drop that window's title bar and border;\n"
"# a frameless window is dragged by its SURFACE instead (buttons still\n"
"# click). Hand-edit to add it -- saves preserve it.\n",
"#\n"
"# Happy with where everything sits? Quit, then append ,noframe to any\n"
"# line to bring that window up with no title bar or border:\n"
"# Heat MFD=1920,0,657,539,noframe\n"
"# A frameless window is also PINNED (no caption = nothing to drag it\n"
"# by), so do the arranging first. Delete the flag to get the frame\n"
"# back. Saves preserve it.\n",
f);
int wrote = 0;
for (int i = 0; i < gWinCount; ++i)
@@ -842,23 +849,6 @@ static LRESULT CALLBACK
case WM_ERASEBKGND:
return 1; // PaintGlass fills the frame (double-buffered)
//
// ",noframe" windows have no title bar, so the SURFACE is the drag handle:
// report HTCAPTION anywhere that is not a button and Windows moves the
// window for us -- including the WM_EXITSIZEMOVE at the end, so a drag
// still sticks in save mode. Over a button we report HTCLIENT so the
// press reaches WM_LBUTTONDOWN as usual.
//
case WM_NCHITTEST:
if (w != NULL && w->noFrame)
{
POINT p;
p.x = (int)(short)LOWORD(lparam);
p.y = (int)(short)HIWORD(lparam);
ScreenToClient(window, &p);
return (HitTest(w, p.x, p.y) >= 0) ? HTCLIENT : HTCAPTION;
}
break;
case WM_TIMER:
if (wparam == RepaintTimerId)
game/btl4main.cpp
+5 -4
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@@ -298,11 +298,12 @@ static const char *kEnvironIniDefault =
"# The positions live in glass_layout.cfg beside this file -- delete it to go\n"
"# back to the pod ring. Windows not in the file keep their computed spot.\n"
"#\n"
"# In that file you can also append ,noframe to a window's line to strip its\n"
"# title bar and border -- handy on a multi-monitor wall where the chrome is\n"
"# just noise. A frameless window is dragged by its SURFACE instead (the\n"
"# buttons still click), and saves keep the flag:\n"
"# Once everything is where you want it, quit and append ,noframe to any line\n"
"# in that file to bring that window up with no title bar or border -- handy\n"
"# on a multi-monitor wall where the chrome is just noise:\n"
"# Heat MFD=1920,0,657,539,noframe\n"
"# Arrange FIRST: a frameless window is also pinned (no caption means nothing\n"
"# to drag it by). Delete the flag to get the frame back.\n"
"#BT_GLASS_LAYOUT=save\n"
"\n"
"# Size of the secondary displays in the cockpit surround, as a percentage of\n"