Bug 343611

Using the mouse wheel or touchpad to interact with widgets that can respond to mouse wheel events (kmix and clock widget, for example) is unreliable because a minimal movement causes too much events.

For example using a minimal touchpad swipe with the cursor placed in the kmix icon causes it to go from 100% to 0% in one go as opossed to some percentage like plasma 4.1x.

Another example is trying to change the displayed clock timezone in the clock widget. A minimal moment causes it to flicker very fast between all the available timezones, making it almost impossible to select the correct one.

Reproducible: Always

Steps to Reproduce:
1. Add kmix or the clock widget to plasma desktop.
2. Try to change volume or timezone using the mouse wheel or touchpad.
3.

Actual Results:  
Kmix increases/decreases volume going to 0-100% or any value between them, making impossible to select a desired value.
The clock widget siwtch between timezones too fast, skipping many timezones.

Expected Results:  
Kmix increases/decreases volume slowly and in a controlled manner.
The clock widget siwtch between timezones, one at a time.

Using plasma 5.2.0