Rearrange planner UI elements

This is my first attempt at grouping UI elements of the planner in a
sensible way.

It might still be sensible to combine the two bottom panes into one.

In addition there is a new field "altutude" which is sychronized with the
surface pressure as for planning we often know the altitude of the dive
site rather than the atmospheric pressure.

Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Make the dive planner dialog prettier.

It was too much vertical and cluttered, making the usage of the
application a bit strange.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Fix default widget.

The default widget that was being shown was the planner widget
where we needed to show the normal dive widget.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
New page "Network settings"

Signed-off-by: Sergey Starosek <sergey.starosek@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
UI setup for "Network settings" page

Signed-off-by: Sergey Starosek <sergey.starosek@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Expose proxy settings into preferences struct

Signed-off-by: Sergey Starosek <sergey.starosek@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Implement proxy settings loading/saving

- proxy settings are stored under [Network] group
- default is "No proxy"
- duplicate #def GET_TXT replaced with GET_INT_DEF

Signed-off-by: Sergey Starosek <sergey.starosek@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Implement proxy re-configuration

- application level proxy is reconfigured on settings saving
- tested with direct connection (no proxy), local proxy without auth
  (tinyproxy) and SOCKS (ssh -D dynamic port forwarding)
- not sure about QNetworkProxy reuse between invocations
- consider using QNetworkProxyFactory (but since no plain TCP
  connections are used, QNetworkProxy seems to be good choice)

Signed-off-by: Sergey Starosek <sergey.starosek@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Make system proxy as default

On first start (no settings saved yet) system-wide proxy should be
default.

Proposed-by: Thiago Macieira <thiago@macieira.org>
Signed-off-by: Sergey Starosek <sergey.starosek@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Headers cleanup.

Too much noise on the headers, this commit remove uneeded
headers when they are uneeded.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Better visualization of the maintab in the designer

The layout of the maintab differed a bit between the application and the
designer because the designer didn't take into account that the
divemaster, buddy and tags were one line widgets.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Added a TimeEdit

The thing that I was trying to do didn't worked, getting back
to the original Qt timeEdit.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Added code for TimeEdit

This makes the TimeEdit work again.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Fixed changing dates with the new date widget.

The maintab was connecting with an invalid slot on the
new date widget, QDateTime instead of QDate

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Fix crash when trying to add a dive or plan when a filter is active.

The planner used the selected dive on the dive list, and
when there's a filtering in action it can be in a state where
there's no dive selected.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Break really long line

Hard to read on the editor.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Re-enable possibility to edit manually added dive.

This one-liner re-adds the possibility to edit manually added dives.
Tested because I didn't belived that it was going to be so easy, but it
seems that it was.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Correctly use our "localtime"

We use time stamps without timezone, so we need to correct for the current
time zone offset before showing dates and times in time zone aware
widgets.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Make date widget easier to read

At least on my screen this is much better.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>