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bd47979292
This puts to final rest #478, wherein ligatured glyphs that span cells would render portions of the glyph with the wrong fg color, where wrong was usually the bg color and cause the glyph to turn invisible when cursoring through the ligature. The approach used here is to divide the glyph into 7 discrete strips where each strip either intersects with the cursor, the selection, or neither. That allows us to render each strip with the appropriate foreground color. This change simplifies some of the logic and allows some other code to be removed, so that feels good! As is tradition with these renderer changes, there's a good chance that I overlooked something in testing and that the metrics or alignment might be slightly off for some font/text combo. Let's see how this goes! refs: #784 refs: #478 refs: #1617 |
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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.