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Render state already tracks the selected cell range for each viewport row, but C renderers could only get the full terminal selection. That required consumers to map global selection pins back into row-local spans themselves. Add row selection data to the render-state row API. Querying the new row data returns GHOSTTY_NO_VALUE for unselected rows and writes the inclusive start and end columns for selected rows. The render example now demonstrates setting a selection and reading the row-local range while iterating rows.
20 lines
575 B
Markdown
20 lines
575 B
Markdown
# Example: `ghostty-vt` Render State
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This contains an example of how to use the `ghostty-vt` render-state API
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to create a render state, update it from terminal content, iterate rows
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and cells, read styles and colors, inspect cursor and row-local selection
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state, and manage dirty tracking.
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This uses a `build.zig` and `Zig` to build the C program so that we
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can reuse a lot of our build logic and depend directly on our source
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tree, but Ghostty emits a standard C library that can be used with any
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C tooling.
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## Usage
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Run the program:
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```shell-session
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zig build run
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```
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