Project Upgrade Plan: Qt 6 Migration, Performance Optimization & Security Updates

[kuoyaoming]

ScreenTranslator Project Upgrade Analysis & Modernization Plan

Current Project Status

Version Information

• Application Version: 3.3.0 (Released 2020)
• Qt Version: 5.15.2 (LTS version, but outdated)
• C++ Standard: C++17
• Project Status: Nearly abandoned

Current Dependencies

• Qt: 5.15.2 -> Needs upgrade to Qt 6
• Tesseract: External dependency
• Leptonica: Image processing library
• Hunspell: Spell checking
• miniz: 2.1.0 (2013 version, SECURITY RISK)
• Google Test: Old version, SECURITY RISK

Urgent Security Updates Required

High Priority Security Issues

1. miniz 2.1.0 - 2013 version with known security vulnerabilities
2. Google Test - Old version with security risks
3. Translation Scripts - May fail due to service provider interface changes

Upgrade Plan

Phase 1: Emergency Security Updates (1 month)

• Update miniz to latest version (3.0.0+)
• Update Google Test to latest stable version
• Fix Google Translate and DeepL scripts
• Patch known security vulnerabilities

Phase 2: Core Framework Upgrade (2 months)

• Qt 5.15.2 -> Qt 6.6+ LTS
  • 15-20% performance improvement
  • Memory usage optimization
  • Better multithreading support
• C++17 -> C++20
  • Utilize new language features
  • Better memory management

Phase 3: Performance Optimization (1 month)

• OCR processing optimization
  • Image preprocessing pipeline improvements
  • SIMD instruction acceleration
  • Parallel processing of multiple images
• Memory management optimization
  • Smart caching mechanism
  • Memory pool implementation
• Multithreading optimization
  • Thread pool implementation
  • Parallel translation service processing

Phase 4: Architecture Modernization (1 month)

• Modular refactoring
• Configuration management optimization (JSON/YAML)
• Structured logging system
• Dependency injection implementation

Phase 5: Feature Enhancement (1 month)

• New translation service integration
• Modern UI (Qt Quick)
• Performance monitoring system
• Dark theme support

Expected Benefits

Performance Improvements

• Startup time: 30-40% reduction
• OCR processing speed: 20-30% improvement
• Memory usage: 25-35% reduction
• Translation response time: 15-25% improvement

Stability Improvements

• 50%+ crash rate reduction
• Better error handling mechanisms
• Improved resource management

Maintainability Improvements

• Modern code structure
• Better test coverage
• Improved documentation

Risk Assessment

High Risk Items

1. Qt 6 Migration

   • Risk: API changes may cause functionality failures
   • Mitigation: Create comprehensive test suite, phased migration

2. Translation Service Script Updates

   • Risk: External service changes may break functionality
   • Mitigation: Implement multiple backup translation services

Medium Risk Items

1. Performance Optimization
   • Risk: Optimization may introduce new bugs
   • Mitigation: Use performance analysis tools, gradual optimization

Technical Details

Key Improvement Areas

OCR Processing Optimization

// Current issue: Too many image preprocessing steps with low efficiency
// Solution: Optimize image preprocessing pipeline
class OptimizedImageProcessor {
    // Use SIMD instructions for acceleration
    // Reduce memory copying
    // Parallel processing of multiple images
};

Memory Management

• Implement smart caching mechanism
• Use memory pools to reduce allocation overhead
• Optimize PixGuard class

Multithreading Architecture

• Implement thread pools
• Parallel processing of multiple translation services
• Asynchronous image processing

Implementation Timeline

Month	Main Tasks	Expected Results
Month 1	Emergency security updates	Patch security vulnerabilities, update outdated dependencies
Month 2	Qt 6 migration preparation	Set up development environment, analyze change impact
Month 3	Qt 6 core migration	Complete core module migration
Month 4	Performance optimization	OCR and memory management optimization
Month 5	Architecture refactoring	Modularization and configuration system upgrade
Month 6	Testing and release	Comprehensive testing, new version release

Recommendations

1. Prioritize security updates - miniz and Google Test updates should be done immediately
2. Phased implementation - Avoid large-scale changes at once to reduce risk
3. Establish CI/CD - Automate testing and deployment processes
4. User feedback - Create beta testing group
5. Documentation maintenance - Keep upgrade logs and technical documentation updated

Contribution Opportunities

We welcome interested developers to participate in this upgrade plan:

• Security updates - Immediate attention needed
• Qt 6 migration - Developers familiar with Qt framework needed
• Performance optimization - C++ and image processing experience required
• Testing - Testing various environments and configurations needed

Related Labels

enhancement performance security qt6 modernization breaking-change

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Note: This is a large-scale upgrade plan. We recommend phased implementation with thorough testing at each stage. Community discussion and contributions are welcome!

[RedCapcha]

Эх, а проект то мёртвый

[OneMoreGres]

Да, почти мертвый (вопросы на гитхабе только проверяю иногда). Устал просто. Хватает работы и ни сил, ни желания заниматься проектом, которым сам давно не пользуюсь, особо нет. Может кто-нибуль форк живой сделает. Пусть даже вайбкодерский, как этот ПР. Ну и аналоги есть тоже разной степени заброшенности)

[RedCapcha]

Да, почти мертвый (вопросы на гитхабе только проверяю иногда). Устал просто. Хватает работы и ни сил, ни желания заниматься проектом, которым сам давно не пользуюсь, особо нет. Может кто-нибуль форк живой сделает. Пусть даже вайбкодерский, как этот ПР. Ну и аналоги есть тоже разной степени заброшенности)

Да вот проблема в том, что нет аналогов, есть только хрень какая то с переводом текста в заранее выделенной области и то работает она от слова никак. Возьми себя в руки, скажи работе твёрдое НЕТ, сожги машину начальника и уделай уже наконец переводчики. Сейчас даже яндекс не работает.