[Solved]Ticket #4452 - Zooming with scroll wheel doesn't work

[qurn]

My bad, its my first appimage, apologies. I confirm zooming by scrolling works as it should be with the appimage version.
(the buttons look badly scaled for high resolution screen though..)

OS: Arch Linux
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.22411 (Git) AppImage
Build type: Release
Branch: master
Hash: d4519d5aec15bc08f029da5ed15410a494b57b2c
Python version: 3.8.5
Qt version: 5.12.9
Coin version: 4.0.0
OCC version: 7.4.0
Locale: English/United States (en_US)

[sgrogan]

My bad, its my first appimage, apologies. I confirm zooming by scrolling works as it should be with the appimage version.
(the buttons look badly scaled for high resolution screen though..)

No worries. Thanks for testing!
BTW: Thanks for posting the bug on the forum, so we can triage for the devs

[babaroga]

Hello,

I can confirm it has something with Qt 15.5.1
After my system update yesterday, mouse scroll wheel is not working in 3D view. It zoom OK in TechDraw WB and all others dialogs, report views. With Qt 15.5 everything worked OK.

Code: Select all

OS: Manjaro Linux (KDE//usr/share/xsessions/plasma)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.22611 (Git)
Build type: Release
Branch: master
Hash: 7eeec7a5990cc786723225ca8de16ca3186545b3
Python version: 3.8.5
Qt version: 5.15.1
Coin version: 4.0.0
OCC version: 7.4.0
Locale: English/United States (en_US)

I did clean rebuild of FreeCAD from master, but problem persists.

[jmaustpc]

I did clean rebuild of FreeCAD from master, but problem persists.

It could be worth backing up the contents of your "./freecad" config directory then deleting the contents. On next start FreeCAD will create new config files with default values. Thus resetting all you preferences, if you are lucky your problem may go away.

[babaroga]

Unfortunately, no changes.

Deleted .FreeCAD folder and .config/FreeCAD but no changes.

I will try to investigate what changed in Qt 5.15.1

[Chris_G]

I can confirm this too, since upgrade to Qt 5.15.1

Code: Select all

OS: Manjaro Linux (KDE//usr/share/xsessions/plasma)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.22611 (Git)
Build type: Release
Branch: master
Hash: 7eeec7a5990cc786723225ca8de16ca3186545b3
Python version: 3.8.5
Qt version: 5.15.0
Coin version: 4.0.0
OCC version: 7.4.0
Locale: French/France (fr_FR)

Strange : Qt is still reported as 5.15.0, on a brand new build ?

[DeepSOIC]

QWheelEvent docs say that delta() method that is used by FreeCAD (here) is obsolete. I guess that is our problem.

[babaroga]

I tried with Mouse.cpp reverted to state with fake buttons, but still no luck...

[DeepSOIC]

I tried with Mouse.cpp reverted to state with fake buttons, but still no luck...

Can you please try replacing .delta() with .angleDelta().y() there?

[Chris_G]

I tried this, this afternoon, but no change :

Code: Select all

#include <QtCore/QPoint>
... / ...
QPoint numDegrees = event->angleDelta() / 8;
this->wheel->setDelta(numDegrees.y());