[Qgis-developer] Zoom in and out using mouse wheel may use pointer position as center

[Gabriele Monfardini]

Hi all,

zooming in and out in qgis using mouse wheel does not change canvas center.
Why don't use current mouse position as center?

This would allow zooming to a small region without panning, with the
following steps:

1. position mouse in the desired position
2. zoom in with mouse wheel (desired position never exit the canvas)

Currently user usually do:

1. zoom in with mouse wheel until desired position exit the canvas
2. pan to recenter canvas around desired position. Due to the
imprecision of this operation zooming in a lot desired position may
exit the canvas again
3. repeat 1+ 2 until needed

Regards,

Gabriele Monfardini