Improve text selection between TextArea items in ListView

[nuttyartist]

Hello,

Thanks a lot of your code here! It lays the ground for a proof-of-concept for the Block Editor I'm working on for my note-taking app https://github.com/nuttyartist/daino-notes-public. I thought I might share some additional features I implemented.

• Backward selection
• Word selection (double click)
• Line selection (triple click)
• Smooth (accelerated) scrolling when selection is near the top/bottom of the view.
• Some small improvements like hiding cursor on selection, handling selection outside of delegate.

Note:

• I converted the delegate from RichText to PlainText in order to get a clean string of the text (not sure how to do it purely in QML, but I'm sure it's possible with the help of a C++ function) in selectLineAtPos() function.
• Ofcourse, it's always better to save the sate inside the model data. I kept your solution since it's still works very nicely for a simple program and the state is not saved inside the delegates but in selectionArea that tells the delegates wether to be selected when they are rendered into view.

Still not implemented (I plan to implment these in my note-taking app):

• Copy and paste
• Undo/Redo
• Select All
• Arrow keys (up and down works great due to keyNavigationEnabled, but still need to implement when the user moves the cursor left and right from the start/end respectively.

Thanks again, and I hope this can be useful for others.

[shaan7]

Hi @nuttyartist , thanks for the PR! I am merging this to a separate branch since the code in main serves as an example to the talk which is still online.