CHANGELOG.md

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