Discussion:
[Audacity-devel] Fisheye project for 2.1.4?
Paul Licameli
2017-01-19 04:40:23 UTC
Permalink
James has mentioned the "fisheye" I worked on as a possible feature for
version 2.1.4. Other suggested names are welcome, such as the "magnifier."

I had this project working in 2015. based on 2.1.1, but set it aside for a
long time. Lately I have reacquainted myself with my prototype and started
the work of rebasing it onto later code. So far I have rebased it onto the
Audacity-2.1.2 tag in the git repository, so that at least it past the wx3
migration and is easier to build.

It is in a branch in my fork called fisheye-on-2.1.2 and the latest commit
is c9adf2f.

If you want to build it and try it, here is a summary of the user interface
changes. Surely these details could be changed. I developed this on
Windows before considering convenience on the Mac touchpad.

- Key F toggles fieheye on and off.
- Key G plays the fisheye.
- Interface preferences have some new controls affecting fisheye
appearance, including a choice among three styles for drawing the edges of
the fisheye.
- If you scrub, fisheye follows the play head. (Remember to Ctrl+Click
to scrub in 2.1.2.)
- Shift + Ctrl/Command + mouse wheel, with pointer in the fisheye,
changes its the screen width.
- Ctrl/Command + mouse wheel, with pointer in the fisheye, changes
magnification inside it.
- You can edit samples with the draw tool in the fisheye if the inner
magnification is great enough, even if you cannot outside the fisheye.
- Right-click in the fisheye, mouse movement, and right-click again
makes coarse adjustement of the fisheye -- shifting the magnified window
against an immobile, less magnified background.
- Right-click in the fisheye, drag, and release makes fine adjustment of
the fisheye -- shifting a window into an immobile, high magnification view
of the track, while the backgound may move to adjust. (On Mac touchpad,
control + three finger drag.)
- Right-double-click in the fisheye recenters it about the clicked point.
- Right-double-click and drag (possible to do on a Mac pad, with control
key and pressure) makes "ultrafine adjustment" -- the display changes as
with click-and-drag, but the fisheye moves slowly toward the mouse, not
with it.


PRL

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