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This isn't complete; many of the placement options are not supported, and the status reporting is missing in a number of cases, including querying/probing, and shared memory objects are not supported yet. However, this commit is sufficient to allow the kitty-png.py script (that was copied from https://sw.kovidgoyal.net/kitty/graphics-protocol/#a-minimal-example) to render a PNG in the terminal. This implementation routes the basic image display via the same code that we use for iterm2 and sixel protocols, but it isn't sufficient to support the rest of the placement options allowed by the spec. Notably, we'll need to add the concept of image placements to the data model maintained by the terminal state and find a way to efficiently manage placements both by id and by a viewport range. The renderer will need to manage separate quads for placements and order them by z-index, and adjust the render phases so that images can appear in the correct plane. refs: #986 |
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Terminal Wizardry
This is a rust crate that provides a number of support functions for applications interested in either displaying data to a terminal or in building a terminal emulator.
It is currently in active development and subject to fairly wild sweeping changes.
Included functionality:
Surfacemodels a terminal display and its componentCells- Terminal attributes are aware of modern features such as True Color, Hyperlinks and will also support sixel and iterm style terminal graphics display.
Surfaces include a log ofChanges and an API for consuming and applying deltas. This is a powerful building block for synchronizing screen instances.- Escape sequence parser decodes inscrutable escape sequences and gives them semantic meaning, making the code that uses them clearer. The decoded escapes can be re-encoded, allowing applications to start with the semantic meaning and emit the appropriate escape sequence without embedding obscure binary bytes.
Capabilitiesallows probing for terminal capabilities that may not be included in the system terminfo database, and overriding them in an embedding application.Terminaltrait provides an abstraction over unix style ttys and Windows style console APIs.Changes fromSurfacecan be rendered toTerminals.Terminals allow decoding mouse and keyboard inputs in both blocking or non-blocking mode.Widgettrait allows composition of UI elements at a higher level.LineEditorimplements shell-like line editing functionality.
Windows Support
Termwiz understands how to work with both the legacy console APIs and the new PTY and virtual terminal features available in Windows 10, allowing for true color terminal applications on Windows 10.