* Initial plan * Add ScreenChanged event, SetScreenSize method, and fix FakeDriver buffer initialization Co-authored-by: tig <585482+tig@users.noreply.github.com> * Add comprehensive tests for ScreenChanged event and buffer integrity Co-authored-by: tig <585482+tig@users.noreply.github.com> * Replace obsolete SizeChanged usage with ScreenChanged in core and tests Co-authored-by: tig <585482+tig@users.noreply.github.com> * Refactor terminal size event handling Replaced `ScreenChanged` with `SizeChanged` across the codebase to standardize naming and improve clarity. Updated event handling logic, including subscriptions, unsubscriptions, and raising methods. Removed deprecated `ScreenChanged` event and backward compatibility code. Refactored driver initialization to handle legacy `IConsoleDriver` types separately. Updated tests and mock implementations to align with the new `SizeChanged` event. Improved documentation and comments to reflect these changes. These updates enhance maintainability, consistency, and modernize the architecture. * Refactor & Code Cleanup: Replace IWindowSizeMonitor with IConsoleSizeMonitor Renamed `IWindowSizeMonitor` to `IConsoleSizeMonitor` across the codebase, updating all references, method signatures, and event handlers. Replaced the `WindowSizeMonitor` class with the new `ConsoleSizeMonitor` implementation, which includes improved terminal size change handling via the `Poll` method. Enabled nullable reference types in several files to enhance code safety. Updated test cases to reflect the new `IConsoleSizeMonitor` interface. Removed redundant code, simplified null checks, and corrected minor typos in comments. Streamlined the codebase by removing the obsolete `WindowSizeMonitor` class and its interface. * Code cleanup - Refactor and enhance ShadowView and FakeDriverTests Updated ShadowView.cs to use null-conditional operators and added null checks for safer access to `ScreenContents`. Refined XML documentation in View.Layout.cs for clarity and consistency. Refactored FakeDriverTests.cs to leverage modern C# features, including shorthand object instantiation, inline lambdas, and tuple-like syntax for `Size` and `Rectangle`. Removed redundant tests and improved test readability and reliability. Enhanced error handling with null checks and ensured backward compatibility for deprecated events. Improved test coverage for resizing, clipboard operations, and invalid coordinates. Verified buffer integrity and screen updates after resizing. General improvements include replacing explicit type declarations with `var`, removing unused imports, and aligning code formatting for better readability. Refactor and improve code quality and test coverage Updated `ShadowView` for null safety using null-conditional operators. Simplified object initializations and modernized syntax across the codebase, including shorthand initializations and inline lambdas. Enhanced event handling logic and ensured compatibility with obsolete members. Refactored `FakeDriverTests` by removing redundant code, standardizing formatting, and improving test setup. Suppressed obsolete warnings where necessary. Improved XML documentation in `View.Layout.cs` for clarity and removed outdated references. Performed general cleanup, including removing unused namespaces, redundant comments, and ensuring consistent formatting. These changes enhance readability, maintainability, and runtime safety. * Code cleanup Refactor TimedEventsTests for readability and consistency Improved code readability and maintainability: - Enabled nullable reference types with `#nullable enable`. - Removed unused `using System.Diagnostics;`. - Updated namespace to `UnitTests.ApplicationTests`. - Replaced `Terminal.Gui.App.TimedEvents` with `TimedEvents`. - Reformatted XML documentation comments for alignment. - Used `var` and target-typed new expressions for consistency. - Reformatted `Parallel.For` loops and lambdas for clarity. - Added `Thread.Sleep(10)` to prevent excessive CPU usage in tests. - Improved assertions and event handler formatting in tests. Aligned with modern C# coding practices. * Code Cleanup - No more driver warnings. Refactor codebase and introduce FakeClipboard - Adjusted `.editorconfig` to change severity levels for CS0612, CS0618, and CS0672 diagnostics. - Replaced `FakeDriver.FakeClipboard` with a new `FakeClipboard` class for testing purposes, supporting exception handling and clipboard data manipulation. - Removed redundant methods (`MakeColor`, `MapKey`) and unused classes (`MockConsoleDriver`) to streamline the codebase. - Refactored `ConsoleDriverFacade` and `FakeDriver` to simplify logic and improve maintainability. - Updated tests to use `CreateFakeDriver` and removed or commented out obsolete tests. - Reformatted and cleaned up code for readability across multiple files. * Refactor FakeDriver - Code Cleanup Standardized console size management by replacing `WindowSizeMonitor` with `ConsoleSizeMonitor` across the codebase. Updated methods `GetWindowSize` and `SetWindowSize` to `GetSize` and `SetSize` for consistency. Refactored `FakeDriver` to use `SetScreenSize` and removed redundant methods. Simplified driver initialization by removing legacy `InternalInit` logic. Standardized ANSI escape sequences by replacing `CSI_ReportTerminalSizeInChars` with `CSI_ReportWindowSizeInChars`. Updated test cases to align with the new `ConsoleSizeMonitor` and `SetScreenSize` methods. Removed obsolete test utilities like `FakeSizeMonitor` and `FakeWindowSizeMonitor`. Performed general code cleanup, including removing unused classes, redundant code, and improving formatting. Fixed resizing logic issues and improved exception handling in driver methods. * Update Terminal.Gui/Drivers/OutputBuffer.cs Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Update Terminal.Gui/Drivers/MouseButtonStateEx.cs Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Update Terminal.Gui/App/MainLoop/IApplicationMainLoop.cs Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Update Tests/UnitTests/Views/ToplevelTests.cs Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Update Terminal.Gui/ViewBase/View.Layout.cs Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Moved all Drawing tests to Paralleizable - proving Fakedriver works Enhanced `Ruler` and `Thickness` classes by adding an optional `IConsoleDriver? driver` parameter to decouple rendering from the default `Application.Driver`, improving flexibility and testability. Updated `DriverAssert` to support nullable drivers and added defensive checks. Refactored and expanded test cases for `Ruler`, `Thickness`, `LineCanvas`, and `StraightLineExtensions` to ensure comprehensive coverage, including zero-length intersections, line rendering, and exclusion logic. Migrated rendering-dependent tests to a parallelizable namespace. Removed redundant tests, improved naming conventions, and updated documentation for better maintainability and clarity. * Fixed Run<T> startup hang. Refactor: Simplify driver logic and update SetSize methods Removed FakeDriver safeguard in unit tests to simplify CreateDriver logic. Updated SetSize methods in NetOutput, UnixOutput, and WindowsOutput to do nothing instead of throwing NotImplementedException. Modified SizeChanged event in ConsoleDriverFacade to call SetScreenSize directly. Commented out unnecessary debug validation in DimAuto. These changes improve maintainability and reduce complexity. * Fixed intermittent unit test bug. Refactored `_cachedRunStateToplevel` to `CachedRunStateToplevel` as an internal static property, delegating its management to `ApplicationImpl` for improved encapsulation. Updated all references to use the new property and centralized its handling in `ApplicationImpl`. Removed the `MouseGrabHandler` property from `ApplicationImpl` and simplified driver-related assignments by replacing `Application.ForceDriver` and `Application.Screen` with direct references. Reset `CachedRunStateToplevel` during cleanup to ensure proper state management. Updated the `Invoke` method to use `Top` directly, aligning with the refactored design. Improved debug assertions and performed general cleanup to enhance code readability and maintainability. * Fixed intermittent bug an massive code cleanup of warnings. Refactor and enhance codebase for maintainability - Applied null-conditional operator (`!`) to improve null-safety. - Refactored tests for clarity, added new cases, and removed redundancies. - Introduced `FakeApplicationFactory` and `FakeSizeMonitor` for testing. - Removed unused code, including legacy `DecodeEscSeq` logic. - Reformatted code for readability and consistency. - Updated assertions for more accurate validation in tests. - Fixed potential null reference issues across multiple files. - Improved event handling with proper null checks. - Enhanced documentation for new classes and methods. - Modernized code with C# features like `record struct` and `nullable enable`. --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: tig <585482+tig@users.noreply.github.com> Co-authored-by: Tig <tig@users.noreply.github.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Terminal.Gui Project
Terminal.Gui is a cross-platform UI toolkit for creating console-based graphical user interfaces in .NET. This repository contains all files required to build the Terminal.Gui library and NuGet package, enabling developers to create rich terminal applications with ease.
Project Overview
Terminal.Gui provides a comprehensive framework for building interactive console applications with support for keyboard and mouse input, customizable views, and a robust event system. It is designed to work across Windows, macOS, and Linux, leveraging platform-specific console capabilities where available.
Project Folder Structure
This directory contains the core Terminal.Gui library source code. For a detailed repository structure, see CONTRIBUTING.md - Repository Structure.
Getting Started
For instructions on how to start using Terminal.Gui, refer to the Getting Started Guide in our documentation.
Documentation
Comprehensive documentation is available at gui-cs.github.io/Terminal.Gui.
For information on generating and updating the API documentation locally, refer to the DocFX README.
Versioning
Version information for Terminal.Gui is managed by gitversion. To install gitversion:
dotnet tool install --global GitVersion.Tool
dotnet-gitversion
The project version (used in the NuGet package and Terminal.Gui.dll) is determined from the latest git tag. The format of version numbers is major.minor.patch.build.height and follows Semantic Versioning rules.
To define a new version, tag a commit using git tag:
git tag v2.1.0-beta.1 -a -m "Release v2.1.0 Beta 1"
dotnet-gitversion /updateprojectfiles
dotnet build -c Release
DO NOT COMMIT AFTER USING /updateprojectfiles! Doing so will update the .csproj files in your branch with version info, which we do not want.
Publishing a Release of Terminal.Gui
To release a new version, follow these steps based on Semantic Versioning rules:
- MAJOR version for incompatible API changes.
- MINOR version for backwards-compatible functionality additions.
- PATCH version for backwards-compatible bug fixes.
Steps for Release:
-
Verify the
v2_developbranch is ready for release:- Ensure all changes are committed and pushed to the
v2_developbranch. - Ensure your local
v2_developbranch is up-to-date withupstream/v2_develop.
- Ensure all changes are committed and pushed to the
-
Create a pull request for the release in the
v2_developbranch:- Title the PR as "Release vX.Y.Z".
git checkout v2_develop git pull upstream v2_develop git checkout -b vX_Y_Z git add . git commit -m "Release vX.Y.Z" git push- Go to the link printed by
git pushand fill out the Pull Request.
-
On github.com, verify the build action worked on your fork, then merge the PR.
-
Pull the merged
v2_developfromupstream:git checkout v2_develop git pull upstream v2_develop -
Merge
v2_developintov2_release:git checkout v2_release git pull upstream v2_release git merge v2_develop- Fix any merge errors.
-
Create a new annotated tag for the release on
v2_release:git tag vX.Y.Z -a -m "Release vX.Y.Z" -
Push the new tag to
v2_releaseonupstream:git push --atomic upstream v2_release vX.Y.Z -
Monitor Github Actions to ensure the NuGet publishing worked:
- Check GitHub Actions.
-
Check NuGet to see the new package version (wait a few minutes):
- Visit NuGet Package.
-
Add a new Release in Github:
- Go to GitHub Releases and generate release notes with the list of PRs since the last release.
-
Update the
v2_developbranch with the new version:git checkout v2_develop git pull upstream v2_develop git merge v2_release git push upstream v2_develop
NuGet
The official NuGet package for Terminal.Gui is available at https://www.nuget.org/packages/Terminal.Gui. When a new version tag is defined and merged into v2_release, a NuGet package is automatically generated by a GitHub Action. Pre-release versions (e.g., 2.0.0-beta.5) are tagged as pre-release on NuGet.
Contributing
We welcome contributions from the community. For complete contribution guidelines, including:
- Build and test instructions
- Coding conventions and style rules
- Testing requirements and patterns
- Pull request guidelines
- CI/CD workflows
Please refer to CONTRIBUTING.md in the repository root.