[Marble-devel] Review Request 111488: Use only vertical WheelEvent for zooming

[Nikita Skovoroda]

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http://git.reviewboard.kde.org/r/111488/
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Review request for Marble.


Description
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Solves jitter issues on touchpads with both vertical and horizontal two-finger scroll enabled.

On such touchpads, it is very easy to trigger both horizontal and vertical wheel events by moving fingers in the direction that slightly differs from straight horizontal or straight vertical direction.
When the deltas of that events have opposite signs, a jitter-like effect happens if both vertical and horizontal wheel events are bound to the same zoom action.


Diffs
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  src/lib/MarbleWidgetInputHandler.cpp 310bbce 

Diff: http://git.reviewboard.kde.org/r/111488/diff/


Testing
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It compiles, runs, and has the desired effect.

Horizontal wheel events are now ignored, and no jitter happens for me.


Thanks,

Nikita Skovoroda

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