Mac: Any way to disable trackpad / magic mouse zoom?

[celstark]

It seems the trackpad scroll and Magic Mouse scroll events are treated as zooms.  I am constantly zooming in and out of my image inadvertantly - almost the slightest touch.  Even if we can't have multi-touch events do our scroll / pans, is there at least a way to disable this?  It's hyper-sensitive on both my MBP and MBA's trackpad and with the Magic Mouse at least.  Touching the mouse and moving your finger on it in any direction more than a hair causes the image to zoom.  Heaven help you if you put 2 fingers on yout trackpad!

It seems others have hit this here, but I've not seen any solution.  Running in OS X, BTW...

Craig

[mschuster]

Craig, here is the solution I am using. Download and install autohotkey.com. Then create a .ahk script file containing the following code and place a shortcut to it in your Windows Startup folder. The script intercepts and discards all touch events that are interpreted as zooms by PixInsight. If you need touch events for other applications you can disable the script at any time.

Oops: I see now you are OS X, this works only for Windows running via BootCamp.

Regards,
Mike

Code: [Select]

#MaxHotkeysPerInterval 1000
WheelDown::
return
WheelUp::
return
WheelLeft::
return
WheelRight::
return


[celstark]

Mike,

I'd seen your post and yes, a fine solution for BootCamp.  It was good to see I wasn't totally crazy and that others had hit it ... fabulously frustrating!

Craig

[Greg Schwimer]

BUMP....

I see this thread is somewhat old, but I'm having the same issue with PI on my macbook. For example, trying to create a preview is a maddening experience. I try to size the box and suddenly I'm zooming in or out, and I lose control of the preview box. Very frustrating!

Anyone have a fix for this?

[BlueFang]

+ 10^34738

I think of PI as a "professional" application in most areas - except for image viewing. It behaves nothing like most other professional image editing applications - especially for those of us with trackpads or multi-touch interfaces (like the magic mouse).

The simples thing (barring full support for multi-touch input devices) would be to have a preference to change the mouse-wheel to pan instead of zoom. With something like Ctrl+MouseWheel being used for zoom.

As others have stated, it is quite maddening for those of us with multitouch input devices to use PI when zooming & panning around an image - yet other programs like Photoshop or Lightroom work flawlessly with these multitouch input devices.

p.s. I believe Qt has supported multitouch and gestures since 4.6

[pfile]

spacebar + regular one-finger mouse motion on the trackpad = pan

rob

[Greg Schwimer]

As others have stated, it is quite maddening for those of us with multitouch input devices to use PI when zooming & panning around an image - yet other programs like Photoshop or Lightroom work flawlessly with these multitouch input devices.

For me, zooming and panning works well enough - at least as well as it does in Lightroom 5. It's mostly down to creating previews. I can't, 95% of the time. I'll draw the box, release to set it and *woosh!* my zoom changes instead.

spacebar + regular one-finger mouse motion on the trackpad = pan

That does indeed work. I still can't create a preview reliably though.

[Alnitak73]

Yes, please fix this.   I suffer from this with both my standalone track pad and the built-in one - just the slightest hint of a second finger anywhere near the pad and the app treats it like a scroll event and starts to zoom.    I don't get this problem with any other program, but with PI it drives me to distraction!

[Greg Schwimer]

BUMP....

Yes, this is a significant and frustrating problem. Often, even while dragging an image on the workspace, it will zoom as I'm dragging it, or an image I pass by will zoom.

[Juan Conejero]

Are you using the latest version for OS X? The magic mouse and trackpad work fine on OS X with PixInsight version 1.8.4.1195. For the trackpad, the default application settings generally work well, but you may want to experiment changing pinch zoom sensitivity (Edit > Global Preferences > Miscellaneous Image Window Settings > Pinch zoom sensitivity).

If you are using an older version (e.g. 1.8.3, or build 1123), you should install the current 1.8.4.1195 version, where all of these problems have been fixed.

[Juan Conejero]

Edit: After spending some time testing an Apple trackbar on an iMac 5K with OS X 10.11.2, I think the default pinch zoom sensitivity of 0.05 is a bit too small. 0.075 works more comfortably for zooming using pinch gestures (I'll change the default value in the next version). I also recommend enabling the "tap to click" trackbar option on System Preferences. One can navigate image windows very easily by tapping on the trackbar and dragging with the space bar pressed, then pinching to change zoom ratio when desired. Definitely, this works very well on OS X with version 1.8.4.1195.

[Greg Schwimer]

Thanks Juan! I will give this a try.

I am running PI 1.8.4.1195 on Mavericks.

[Greg Schwimer]

Adjusting the pinch zoom sensitivity may have helped a little. I still need to work with it to know for certain. Regardless, the problem persists. Here are two videos of it occurring even after the update to the pinch zoom sensitivity settings.


In this case, both images are affected during a single operation. What I didn't capture is often if there are additional images that are behind the two I am working on, they will be affected as well.

https://www.dropbox.com/s/aptnjyiyapc9k2e/pi_erratic_mouse.mov?dl=0

This one shows what using DynamicCrop is like. Note how the image zooms as I am trying to set the crop area, and I lose the crop box and need to reset.

https://www.dropbox.com/s/zvt67drf4bie1gb/pi_erratic_mouse2.mov?dl=0

I have "Three Finger Drag" enabled in System Preferences. I wonder if the QT libraries are trying to interpret the trackpad input in parallel to the operation system?