Ink stroke editing and manipulation

A computing system, comprising:

• a logic machine;
• and
• a storage machine holding instructions executable by the logic machine to:
• maintain a platform-level container configured to hold natively-supported ink stroke data structures, the platform-level container accessible to a plurality of different applications;
• render, via a display, an ink stroke visual corresponding to each ink stroke data structure held by the platform-level container;
• recognize an ink stroke change event corresponding to an ink stroke data structure held by the platform-level container;
• change the ink stroke data structure to an updated ink stroke data structure in accordance with the ink stroke change event;
• and
• render, via the display, an ink stroke visual corresponding to the updated ink stroke data structure without re-rendering ink stroke visuals corresponding to unchanged ink stroke data structures.

On a computing system, a method for rendering ink stroke visuals, the method comprising:

• maintaining a first platform-level container associated with a first area of a graphical user interface, the first platform-level configured to hold natively-supported ink stroke data structures, the first platform-level container accessible to a plurality of different applications;
• maintaining a second platform-level container associated with a second area of the graphical user interface, the second platform-level container configured to hold natively-supported ink stroke data structures, the second platform-level container accessible to the plurality of different applications;
• rendering, via a display, an ink stroke visual corresponding to each ink stroke data structure held by the first platform-level container in the first area of the graphical user interface;
• rendering, via a display, an ink stroke visual corresponding to each ink stroke data structure held by the second platform-level container in the second area of the graphical user interface;
• recognizing a first ink stroke change event corresponding to a first ink stroke data structure held by the first platform-level container;
• changing the first ink stroke data structure to a first updated ink stroke data structure in accordance with the first ink stroke change event;
• rendering, via the display, a first ink stroke visual corresponding to the first updated ink stroke data structure in the first area of the graphical user interface without re-rendering ink stroke visuals in the graphical user interface corresponding to unchanged ink stroke data structures;
• recognizing a second ink stroke change event corresponding to a second ink stroke data structure held by the second platform-level container;
• changing the second ink stroke data structure held by the second platform-level container to a second updated ink stroke data structure in accordance with the second ink stroke change event;
• and
• rendering, via the display, a second ink stroke visual corresponding to the second updated ink stroke data structure in the second area of the graphical user interface without re-rendering ink stroke visuals in the graphical user interface corresponding to unchanged ink stroke data structures.