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Remove the Qt frontend

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The Qt GUI was unused: out of make-app-release since March, not built by
the gate, and its app bundle could not start (no platform plugin). Every
renderer and input change had to be made in it separately. kge is the
ImGui frontend only.

Removes QtFrontend/QtInputHandler/QtRenderer, the KTE_USE_QT option and
its #if branches (Command.cc, GUITheme.h, main.cc), the Nix qt package
and dev shell, the commented-out Qt release steps, the Qt frontend plan,
and Qt mentions in AGENTS.md, DEVELOPER_GUIDE.md, REWRITE.md and code
comments. Git history keeps the code.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
This commit is contained in:
kyle
2026-09-24 12:32:58 -07:00
co-authored by Claude Opus 5.5
parent 082f4facd3
commit 2125583407
19 changed files with 56 additions and 2230 deletions
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AGENTS.md
+4 -6
View File
@@ -1,9 +1,9 @@
# kte
kte (Kyle's Text Editor) is a C++20 text editor with a terminal-first design (ncurses) and optional GUI frontends (ImGui via SDL2/OpenGL/Freetype, or Qt6); it uses a WordStar/VDE-style command model. Standards: none. The Metacircular service standards do not apply here.
kte (Kyle's Text Editor) is a C++20 text editor with a terminal-first design (ncurses) and an optional ImGui GUI frontend (SDL2/OpenGL/Freetype); it uses a WordStar/VDE-style command model. Standards: none. The Metacircular service standards do not apply here.
## Bootstrap (run once per checkout, idempotent)
nix develop (default shell; also provides `terminal` and `qt` devshells) or system SDL2/Freetype/ncurses if not using nix.
nix develop (default shell; also provides a `terminal` devshell) or system SDL2/Freetype/ncurses if not using nix.
## Gate (run before saying "done"; must exit 0)
make gate # what it runs: configure (cmake -S . -B build -DCMAKE_BUILD_TYPE=Debug -DBUILD_GUI=ON -DBUILD_TESTS=ON) -> build (cmake --build build) -> test (./build/kte_tests)
@@ -12,7 +12,7 @@ Also run clang-tidy on changed files via build/compile_commands.json (not part o
## Run
Terminal editor: `./build/kte <file>` (always built).
GUI editor: `./build/kge <file>` (built when `-DBUILD_GUI=ON`; requires SDL2/OpenGL/Freetype, or Qt6 with `-DKTE_USE_QT=ON`).
GUI editor: `./build/kge <file>` (built when `-DBUILD_GUI=ON`; requires SDL2/OpenGL/Freetype).
Docker (cross-platform Linux testing): `docker build -t kte-linux . && docker run --rm -v "$(pwd):/kte" kte-linux`.
## Sensors the harness watches
@@ -42,7 +42,7 @@ None: kte builds and runs locally (or in the Docker/CI Linux image); it has no r
Three-layer design with strict frontend independence:
```
Frontend Layer (Terminal / ImGui / Qt / Test)
Frontend Layer (Terminal / ImGui / Test)
InputHandler.h, Renderer.h, Frontend.h interfaces
↓
Command Layer
@@ -69,7 +69,6 @@ Core Model Layer
Each frontend implements three interfaces (`Frontend.h`, `InputHandler.h`, `Renderer.h`):
- **Terminal**: ncurses-based (always built)
- **ImGui**: SDL2+OpenGL+Freetype (built with `-DBUILD_GUI=ON`)
- **Qt**: Qt6 (built with `-DBUILD_GUI=ON -DKTE_USE_QT=ON`)
- **Test**: Programmatic frontend for testing (always built, no UI deps)
### Key CMake Options
@@ -77,7 +76,6 @@ Each frontend implements three interfaces (`Frontend.h`, `InputHandler.h`, `Rend
| Flag | Default | Purpose |
|------|---------|---------|
| `BUILD_GUI` | ON | Build `kge` (ImGui GUI) |
| `KTE_USE_QT` | OFF | Use Qt6 instead of ImGui for GUI |
| `BUILD_TESTS` | ON | Build test suite |
| `ENABLE_ASAN` | OFF | AddressSanitizer |
| `KTE_STATIC_LINK` | OFF | Static linking (Linux only) |