Bug #2519: RCP: 0.8.0, macosx, scaling with trackpad scrolling - Plateforme TXM - Forge du Centre Blaise Pascal

Bug #2519

RCP: 0.8.0, macosx, scaling with trackpad scrolling

Added by Matthieu Decorde about 1 year ago. Updated about 1 year ago.

Status:

Closed

Start date:

03/20/2019

Priority:

Normal

Due date:

Assignee:

% Done:

100%

Category:

Charts

Spent time:

Target version:

TXM 0.8.0

Description

The Jfreechart library seems to not manage correctly the scale using the mac os x trackpad.

Steps to reproduce¶

create a CA
scroll up or down with the trackpad
=> the zoom that occurs is in both cases a zoom out

NOTE: can not be reproduced with a mouse on Mac os X 10.14 (SJ)
NOTE: can not be reproduced with a mouse on Mac os X 10.???? (MD)
NOTE: can be reproduced with trackpad on Mac os X 10.???? (MD)
NOTE: seems to occur also with mouse on 10.11 (JCD)

NOTE: can be reproduce with trackpad without TXM, running the basic jfreechart demos jar.

First indications¶

I suspect Java to always receive 0 in MouseWheelEvent on OS X as number or rotations instead of positive or negative numbers defining the direction or the rotation
It seems the bug does not occur in 0.7.9