acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
line.md (1454B)
      1 ```eval_rst
      2 .. include:: /header.rst
      3 :github_url: |github_link_base|/widgets/core/line.md
      4 ```
      5 # Line (lv_line)
      6 
      7 ## Overview
      8 The Line object is capable of drawing straight lines between a set of points.
      9 
     10 ## Parts and Styles
     11 - `LV_PART_MAIN` uses all the typical background properties and line style properties.
     12 
     13 ## Usage
     14 
     15 ### Set points
     16 The points have to be stored in an `lv_point_t` array and passed to the object by the `lv_line_set_points(lines, point_array, point_cnt)` function.
     17 
     18 ### Auto-size
     19 By default, the Line's width and height are set to `LV_SIZE_CONTENT`. This means it will automatically set its size to fit all the points. If the size is set explicitly, parts on the line may not be visible.
     20 
     21 ### Invert y
     22 By default, the *y == 0* point is in the top of the object. It might be counter-intuitive in some cases so the y coordinates can be inverted with `lv_line_set_y_invert(line, true)`. In this case,  *y == 0* will be the bottom of the object.
     23 *y invert* is disabled by default.
     24 
     25 ## Events
     26 Only the [Generic events](../overview/event.html#generic-events) are sent by the object type.
     27 
     28 See the events of the [Base object](/widgets/obj) too.
     29 
     30 Learn more about [Events](/overview/event).
     31 
     32 ## Keys
     33 No *Keys* are processed by the object type.
     34 
     35 Learn more about [Keys](/overview/indev).
     36 
     37 ## Example
     38 
     39 ```eval_rst
     40 
     41 .. include:: ../../../examples/widgets/line/index.rst
     42 
     43 ```
     44 
     45 ## API
     46 
     47 ```eval_rst
     48 
     49 .. doxygenfile:: lv_line.h
     50   :project: lvgl
     51 
     52 ```