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Will McGugan
2023-02-05 12:12:27 +01:00
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docs/guide/widgets.md
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@@ -362,7 +362,7 @@ Here's the code:
We've added a style to the checkerboard which is the color of the highlighted square, with a default of "darkred".
We will need this when we come to render the highlighted square.
We've also added a [reactive variable](./reactivity.md) called `cursor_square` which will hold the coordinate of the square underneath the mouse. Note that we have used [var][textual.reactive.var] which gives as reactive superpowers but won't automatically refresh the whole widget, because we want to update only the squares under the cursor.
We've also added a [reactive variable](./reactivity.md) called `cursor_square` which will hold the coordinate of the square underneath the mouse. Note that we have used [var][textual.reactive.var] which gives us reactive superpowers but won't automatically refresh the whole widget, because we want to update only the squares under the cursor.
The `on_mouse_move` handler takes the mouse coordinates from the [MouseMove][textual.events.MouseMove] object and calculates the coordinate of the square underneath the mouse. There's a little math here, so let's break it down.