Enable kinetic scrolling on GTK+3 (Was: Proper scrolling on touchpads)

[HybridDog]

When scrolling up and down, it currently peacemeal scrolls more than one line at once (lines count depends on the window height). When using a touchpad instead of a mouse wheel, you don't scroll discrete, you can e.g. scroll 0.1 lines in a scroll event, but lxterminal's scrolling doesn't support it yet. I'd like to have it scroll line by line on a touchpad (and a scrolling speed factor depending on the window height). It could add the scrolling distance, multiplied with the scrolling speed factor, to a double and every frame (60 fps) it takes the integer part from the double and scrolls these lines. If scrolling up, the scrolling distance is negative, else it's positive.

[medicalwei]

It would require compiling against GTK+3 library. If so, the pixel-perfect scrolling will be available. Marking as invalid because this feature is available.

[HybridDog]

thanks for this information I compiled it with GTK+3. How can l enable finer scrolling?

[medicalwei]

The scrolling is finer on my side (with GTK+3). I don't know if your device supports finer scrolling or not. What device are you using? you notifications@github.com於 2017年6月29日 週四，03:24寫道：

I compiled it with GTK+3. How can l enable finer scrolling?

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[HybridDog]

Fine scrolling works with evince and other programs. l'm using an asus laptop.

[medicalwei]

This is marked as enhancement. I finally found out that terminal window (vte) is lack of kinetic scrolling.

Reference: https://developer.gnome.org/gtk3/stable/GtkScrolledWindow.html#gtk-scrolled-window-set-kinetic-scrolling

[HybridDog]

I have a different operating system now and fine scrolling works for me.