Analyze: helper APIs for Rectangles and Points

[amartya4256]

Description
We need to extend the APIs of Rectangle and Point and their sub-classes to help consumers use them better.
Following are the list of Ideas:

1. Clone the object with offsets in fields like x, y, width, height
2. Setters and getters for fields instead of direct access.
3. Utility methods to get (top-left) Point from rectangle.
4. ...

These APIs will help consumers use the full-potential of the Hi-DPI and the multiMonitorCoordinateSystem and prevent any problems while working on multi-monitors with monitor specific scaling.

[fedejeanne]

@amartya4256 this one is still too high level for my taste. Do you plan to provide more specific proposals? Then we could move it to ready.

[amartya4256]

@fedejeanne A lot of them are already done, i.e. 1st and 3rd one. I need to re-analyze this. I could convert this into an Analysis issue and find out what the requirements are currently.

[fedejeanne]

Sounds good 👍🏻, please do that

[amartya4256]

Added to Ready:Atomic

[HeikoKlare]

We need some priority for this so that it does not get lost below "low". What do you consider appropriate, medium or high? Both would be fine for me, so please assign whatever you think fits best.

[amartya4256]

I think medium. We do not have any known case right now where we need new APIs but its worth having a look to make it better inside SWT. I'll make it medium.