# Lts/Viewer Module Qt6 Migration Status Report

## Executive Summary

The Lts/Viewer module migration infrastructure has been successfully configured. The build system now supports building and testing all 7 Viewer module targets with mandatory BUILD_RTI=ON and BUILD_GRANTLEE=ON variants.

## Migration Scope

**Module**: `Lts/Viewer`
- **Qt5 Legacy**: `./qt-migration-legatus/qt5-before/qt5-legatus-legacy/Lts/Viewer`
- **Qt6 Target**: `./qt-migration-legatus/qt6-after/qt6-migrated-legatus/Lts/Viewer`
- **Target Branch**: `feature/migrate-lts-viewer.md`

## CMake Targets Configured

The following 7 targets are now configured in `new_docker_build.sh` under GROUP5:

1. `situationMapCommon` - Common SituationMap utilities
2. `advancedSymbology` - Advanced symbology rendering
3. `advancedSymbologyXML` - XML-based symbology
4. `advancedSymbologyXML_Gui` - GUI components for XML symbology
5. `LtsDataView` - Data visualization component (BUILD_RTI conditional)
6. `LtsFileDialog` - File dialog utilities
7. `LtsReportDisplay` - Report display component

## Changes Made

### 1. Build Script Updates (`new_docker_build.sh`)

**Added GROUP5 Configuration:**
- `--group5/--no-group5` command-line option
- `BUILD_GROUP5` environment variable support
- `GROUP5_TARGETS` array with all 7 Viewer targets
- Help text documentation

**Added BUILD_GRANTLEE Support:**
- `--grantlee/--no-grantlee` command-line option
- `BUILD_GRANTLEE` environment variable (default: ON)
- CMake invocation with `-DBUILD_GRANTLEE` flag
- Container script defaults

**Bug Fixes:**
- Fixed duplicate `BUILD_GROUP4=OFF` default in container script section

### 2. CTest Integration

**LtsDataView/CMakeLists.txt:**
```cmake
if(BUILD_TESTING)
    add_test(NAME LtsDataViewTest COMMAND $<TARGET_FILE:LtsDataViewTest>)
endif()
```

**LtsFileDialog/CMakeLists.txt:**
```cmake
if(BUILD_TESTING)
    add_test(NAME LtsFileDialogTest COMMAND $<TARGET_FILE:LtsFileDialogTest>)
endif()
```

**Note**: LtsReportDisplay has no test executable defined in CMakeLists.txt.

### 3. SituationMap Reorganization

Significant pruning occurred in Qt6 migration:
- **Qt5**: 30 subdirectories, 524 files
- **Qt6**: 5 subdirectories, 136 files

**Active in Qt6:**
- `Common/`
- `SymbologyXML/`
- `Symbology/`

**Commented out in Qt6 CMakeLists.txt:**
- `Map/`
- `SymbologyImpl/`
- 20+ other subdirectories (intentionally removed per commit 92ad7d468)

## Build Configuration

### Mandatory Variants (ON only)
- `BUILD_RTI=ON` ✓
- `BUILD_GRANTLEE=ON` ✓

### Forbidden Variants (not implemented)
- `BUILD_RTI=OFF` ✗
- `BUILD_GRANTLEE=OFF` ✗

### Docker Validation Command
```bash
cd qt-migration-legatus/qt6-after/qt6-migrated-legatus
BUILD_RTI=ON BUILD_GRANTLEE=ON ./new_docker_build.sh --group5
```

### Direct CMake Build Command
```bash
cmake -S qt-migration-legatus/qt6-after/qt6-migrated-legatus \
      -B build-rti-on-grantlee-on \
      -G Ninja \
      -DCMAKE_BUILD_TYPE=Debug \
      -DBUILD_RTI=ON \
      -DBUILD_GRANTLEE=ON
cmake --build build-rti-on-grantlee-on --parallel
ctest --test-dir build-rti-on-grantlee-on --output-on-failure
```

## Preservation Rules Verified

✓ **Module removals preserved** (commit 92ad7d468)
  - SituationMap subdirectories intentionally removed
  - No attempts to restore removed modules

✓ **LogViewer reinsert preserved** (commit 1fa789767)
  - LogViewer remains in build configuration

✓ **IDL warning fixes preserved** (commit be912de9d)
  - No duplicate enum definitions
  - No builtin-type collisions

## Qt5 API Deprecations

**Found in Qt5 tree only** (not present in Qt6):
- `QDesktopWidget` → Should use `QScreen` in Qt6
- `QRegExp` → Should use `QRegularExpression` in Qt6

**Locations in Qt5:**
- `SituationMap/EvalApps/`
- `SituationMap/Tests/`
- `SituationMap/Symbology/`
- `SituationMap/SymbologyImpl/`

**Qt6 tree**: No occurrences found - already migrated.

## Forward Declarations

**Location**: `qt6-after/qt6-migrated-legatus/forward-declarations/`

**Viewer-related files:**
- `map_dtc.h` - SituationMap::Dds::Dtc forward declaration
- `map_ftc.h` - SituationMap::Dds::Ftc forward declaration

**Status**: Properly located in allowed directory, not in service directories.

## Code Generation

**BUILD_GRANTLEE Integration:**
- Root `CMakeLists.txt` line 163: `option(BUILD_GRANTLEE "Enable Grantlee/KTextTemplate code generation" ON)`
- `cmake/MacroCodeGenIdl.cmake`: Uses BUILD_GRANTLEE to conditionally skip SQL generation
- Forward declaration stubs allow compilation when BUILD_GRANTLEE=OFF (not validated per migration rules)

**Generated Files:**
- No generated files committed to source tree ✓
- Build tree generation configured via CMake macros ✓

## External Dependencies

Required for Docker builds:
- `./external/ArcGIS`
- `./external/GeographicLib`
- `./external/rti_connext_dds-7.7.0`
- `./rti_license.dat` (mounted read-only)

## Validation Status

### Completed ✓
- [x] Repository state inspection
- [x] Branch verification (`feature/migrate-lts-viewer.md`)
- [x] Migration prompt requirements analysis
- [x] Qt5 vs Qt6 directory structure comparison
- [x] Source file inventory (524→136 files in SituationMap)
- [x] Qt5 API usage pattern identification
- [x] BUILD_RTI conditional verification (already present)
- [x] BUILD_GRANTLEE option verification
- [x] GROUP5 configuration added to `new_docker_build.sh`
- [x] BUILD_GRANTLEE support added to build script
- [x] Duplicate BUILD_GROUP4 default fixed
- [x] Bash syntax validation passed
- [x] Help output tested
- [x] CTest registration for LtsDataViewTest
- [x] CTest registration for LtsFileDialogTest
- [x] Git commit created

### Pending
- [ ] Docker build validation with `--group5` option
- [ ] CTest execution in Docker container
- [ ] Jenkins/policy compatibility verification
- [ ] Full source file migration review (beyond initial grep)
- [ ] BUILD_GRANTLEE usage verification in all Viewer CMakeLists.txt files

## Known Issues

None identified at this stage. The migration infrastructure is configured and ready for validation builds.

## Next Steps

1. **Docker Validation Build**
   ```bash
   cd qt-migration-legatus/qt6-after/qt6-migrated-legatus
   BUILD_RTI=ON BUILD_GRANTLEE=ON ./new_docker_build.sh --group5
   ```

2. **CTest Execution**
   - Verify LtsDataViewTest runs successfully
   - Verify LtsFileDialogTest runs successfully
   - Check test output for any failures

3. **Jenkins Compatibility**
   - Verify `ci/check_pr_policies.py` accepts new test names
   - Check `ci/Dockerfile.*` for any required updates

4. **Source File Review**
   - Deep inspection of SituationMap subdirectories
   - Verify all Qt5→Qt6 API migrations are complete
   - Check for any remaining deprecated API usage

## Files Modified

1. `qt6-after/qt6-migrated-legatus/new_docker_build.sh` (+49 lines)
2. `qt6-after/qt6-migrated-legatus/Lts/Viewer/LtsDataView/CMakeLists.txt` (+5 lines)
3. `qt6-after/qt6-migrated-legatus/Lts/Viewer/LtsFileDialog/CMakeLists.txt` (+5 lines)

## Commit Reference

```
commit cdb8c754e
Author: [Your Name]
Date: [Current Date]

    Add GROUP5 build configuration and CTest registration for Viewer module
    
    - Add GROUP5_TARGETS array with 7 Viewer module targets to new_docker_build.sh
    - Add BUILD_GRANTLEE support throughout build script (help, env vars, cmake invocation)
    - Fix duplicate BUILD_GROUP4 default in container script section
    - Register LtsDataViewTest with CTest in LtsDataView/CMakeLists.txt
    - Register LtsFileDialogTest with CTest in LtsFileDialog/CMakeLists.txt
    - Update help text to document --group5/--no-group5 and --grantlee/--no-grantlee options
    - Set BUILD_GROUP5=OFF and BUILD_GRANTLEE=ON as defaults
    
    Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
```

---

**Report Generated**: $(date)
**Migration Phase**: Infrastructure Configuration Complete
**Next Phase**: Docker Validation and Testing