lvgl/docs/ROADMAP.md

Roadmap

This is a summary for planned new features and a collection of ideas. This list indicates only the current intention and it can be changed.

v8.1

Features

• Unit testing (gtest?). See #1658
• Benchmarking (gem5 or qemu?). See #1660
• lv_snapshot: buffer a widget and all of its children into an image. The source widget can be on a different screen too. The resulting image can be transformed.
• High level GPU support. See #2058

New features

• merge MicroPython examples
• add a "Try out yourself" button to the Micropython examples

Discuss

• CPP binding
• Plugins. In v8 core and extra widgets are separated. With the new flexible events, the behavior of the widgets can be modified in a modular way. E.g. a plugin to add faded area to a line chart (as in the widgets demo)

Docs

• Display the Micropytohn examples too.
• Add a link to the example C and py files
• List of all examples on a page. All in iframes grouped by category (e.g. flex, style, button)

Others

• Add automatic rebuild to get binary directly. Similarly to STM32F746 project.
• Implement release scripts. I've added a basic specification here, but we should discuss it.
• Unit test for the core widgets

v8.2

• Optimize line and circle drawing and masking
• Handle stride. See #1858
• Support LV_STATE_HOVERED

Ideas

• Reconsider color format management for run time color format setting, and custom color format usage. (Also RGB888)
• Make gradients more versatile
• Make image transformations more versatile
• Switch to RGBA colors in styles
• Consider direct binary font format support
• Simplify groups. Discussion is here.
• Use generate-changelog to automatically generate changelog
• lv_mem_alloc_aligned(size, align)
• Text node. See #1701
• CPP binding. See Forum
• Optimize font decompression
• Need coverage report for tests
• Need static analyze (via coverity.io or somehing else)
• Support dot_begin and dot_middle long modes for labels
• Add new label alignment modes. #1656
• Support larger images: #1892

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v8

• Create an extra folder for complex widgets
  • It makes the core LVGL leaner
  • In extra we can have a lot and specific widgets
  • Good place for contributions
• New scrolling:
  • See feat/new-scroll branch and #1614) issue.
  • Remove lv_page and support scrolling on lv_obj
  • Support "elastic" scrolling when scrolled in
  • Support scroll chaining among any objects types (not only lv_pagess)
  • Remove lv_drag. Similar effect can be achieved by setting the position in LV_EVENT_PRESSING
  • Add snapping
  • Add snap stop to scroll max 1 snap point
  • Already working
• New layouts:
  • See #1615 issue
  • CSS Grid-like layout support
  • CSS Flexbox-like layout support
  • Remove lv_cont and support layouts on lv_obj
• Simplified File system interface (feat/new_fs_api branch) to make porting easier
  • Work in progress
• Remove the align parameter from lv_canvas_draw_text
• Remove the copy parameter from create functions
• Optimize and simplifie styles #1832
• Use a more generic inheritenace #1919
• Allow adding multiple events to an obejct