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CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[0.9.2] - 2022-09-08

  • Fix background image on Streamlit Cloud and remote servers (thanks @andreaferretti)

[0.9.0] - 2022-02-26

  • New point mode (thanks @arnauddhaene):
    • Adds fixed-radius points to build scatter plots
  • Images between frontend and backend are now transferred with URLs computed by Streamlit (thanks @kapong)
  • Upgrade streamlit-component-lib to 1.3.0

[0.8.0] - 2021-06-06

  • New polygon drawing mode (thanks @hiankun):
    • left-click will add point
    • right click will close polygon
    • double click will remove latest point
  • the Bin button in the toolbar which deletes the canvas content will now empty the history and send back to Streamlit a blank state, even if update_streamlit is set to False.
  • Right-click fires the send canvas data back to Streamlit event for all tools (not only the polygon) even if update_streamlit is set to False.

[0.7.0] - 2021-05-14

  • initial_drawing is now used as the initial canvas state. If None provided then we create one on the Python side. This provokes the following changes:
    • a change in background_color will reset the drawing.
    • background_color will override the background color present in initial_drawing.
    • if background_image is present then background_color is removed from st_canvas call.
  • Upgrade Fabric.js to version 4.4.0.
  • Toolbar is now on the bottom left to account for large canvas width.
  • Add argument to make the toolbar invisible.
  • Make stroke_width the minimum size constraint to create a rectangle and circle. Thanks hiankun for the PR!

[0.6.0] - 2021-01-30

  • Add initial_drawing argument to initialize canvas with an exported canvas state

[0.5.2] - 2021-01-23

  • Fix state issue with deleting an object through double click

[0.5.1] - 2020-10-13

  • Add undo/redo/clear buttons
  • Add "Send to Streamlit" button for when "Realtime update" is disabled

[0.4.0] - 2020-09-04

  • Add Circle tool
  • Add argument to fetch data back to Streamlit on demand

[0.3.0] - 2020-08-27

Added

  • Add Rectangle tool
  • Return JSON representation of canvas to Streamlit
  • Add background image behind canvas

[0.2.0] - 2020-08-20

Added

  • Add drawing of straight lines

Changed

  • API entrypoint for "drawing_mode" is now of type string

[0.1.1] - 2020-07-14

  • Disable Retina scaling

[0.1.0] - 2020-07-06

  • Drawable canvas widget