Note application

This project is inspired by Microsoft OneNote, it's developed based on java swing-gui

Prerequisite

This application should be run on Java 9 or above

The outer component is ContentPane, all main component should be reside in here
If there is multiple ContentPane, then you can drag the tab to move the order of it
There is four main component can be added to this application, which are TextPane, TablePane, ImagePane, CanvasPane
Each of them can be dragged around within application, copy, cut, paste, and resized
Also resizing behavior will be slightly different depending on what component you're controlling

The size of TextPane will be changed based on the percentage of max width of column
You can multi-select cells to be able to set text attributes at once

Corner draggable points can be dragged to resize the image, it will retain current image's ratio
North, south, east, west draggable points will break image's ratio, and new ratio will be recalculated

Change line segments' thickness, color and position by multi-selecting or clicking
You can also erase them using eraser

select predefined colors
custom color can be generated by three slider, each represent R, G, B respetively

You can save file by clicking or using hotkey, the output file's extension should end with .note
File size should be quite small, because we only save important attributes like size, position, text attribute, image data, line segment points, etc