Refactoring of visual.ecdh

Major changes overview:

Program flow rework (you don't have to press buttons without any function)
Removed the message boxes and added a fixed info text instead
Using the monospaced font for hexadecimal strings
Changing the colors to hurt your eyes less and be distinguishable for red/green blind people
Moving the save function out of the small combobox
general code cleanup (removed German comments and extended the English ones, cleaned up variables and put code into extra classes when it made sense)
Layout adjustments (mainly minimum sizes fixes and some adjustments for large keys)

For further details you can read the commit messages:

commit b9adf94c4dc24fb74dd8a6b27eb9df84ddfa0f54 Author: Michael Altenhuber michael.altenhuber@students.fh-hagenberg.at Date: Wed Sep 25 00:07:57 2019 +0200

Many minor improvements

    Generally tried to make the code better and more readably by
    doing following things:

    * Removed pointless null declaration
    * Added/adjusted lots of comments (no German anymore)
    * Renamed some variables/methods for better readability
    * Reordered some methods for better readability
    * Removed eclipse string annotations ($NON-NLS$)
    * Moved some methods to ECDHUtil

commit 86fb5bbb300d09b325c3c5dd7fb13882ceb1d053 Author: Michael Altenhuber michael.altenhuber@students.fh-hagenberg.at Date: Tue Sep 24 18:08:51 2019 +0200

Moved the Paint function drawing the middle arrows

commit c85e69dc9ff6195aba41372b48546354b55aa278 Author: Michael Altenhuber michael.altenhuber@students.fh-hagenberg.at Date: Tue Sep 24 17:52:17 2019 +0200

Moved animation class and adjusted it

    The animation used to be an inner class. Moved it to a separate
    file and made it a little bit more clear (comments to English
    and better variable names).
    Also annotated, that it does not work on Linux currently

commit 11c7f7a1b4b0c525775e120bb7899ca8635f067c Author: Michael Altenhuber michael.altenhuber@students.fh-hagenberg.at Date: Tue Sep 24 17:05:29 2019 +0200

Removed old command structure and added buttons

    Previously you could save the result by clicking on the top
    right drop down menu. This was really hidden, a normal user
    would never find that I guess.
    Removed it and replaced it by normal buttons.
    The reset button was moved to the usual plugin.xml structure

commit a606cd6b66dc01c84ccce5fd52d1b43565246574 Author: Michael Altenhuber michael.altenhuber@students.fh-hagenberg.at Date: Thu Sep 19 23:15:51 2019 +0200

Removed Messageboxes

commit 3b766163b1adf5ce505e1efdda7071d543cc48a9 Author: Michael Altenhuber michael@altenhuber.net Date: Wed Sep 11 22:10:57 2019 +0200

Added actual texts to info on the right - adjusted sizes

    Info texts now get displayed in the right info text field instead
    of the messageboxes. These will also be removed in future commits.

commit f3fc882cc2ef0ab0c824b0d5a0845beae8123007 Author: Michael Altenhuber michael@altenhuber.net Date: Mon Sep 9 21:51:08 2019 +0200

Fixed the way the key icon is loaded and drawn

commit ecb4beb48f4705c9bfd69951a634d211c5b00e3a Author: Michael Altenhuber michael@altenhuber.net Date: Mon Sep 9 21:23:43 2019 +0200

Fixed reset() to work properly on selecting a secret

    Also properly commented the reset() function

commit 7aeb942a5414fdfb66e61c1458e94efa02aba373 Author: Michael Altenhuber michael@altenhuber.net Date: Wed Sep 4 23:44:20 2019 +0200

Adjusted control flow

    Previously you would have to click every button on the left side extra,
    which would actually nothing in some cases. Buttons should behave more
    intuitive now: They automatically become green when an action is finished.

    The last Button "Generate common key" now functions as short way to calculate
    both keys.

commit e3fcbf6f500112574fb4de125fed3daa51904391 Author: Michael Altenhuber michael.altenhuber@students.fh-hagenberg.at Date: Wed Aug 28 19:38:26 2019 +0200

Replace key icon through new one

commit eec0217304136bb9e3835e018b6bf7c72b1dc133 Author: Michael Altenhuber michael.altenhuber@students.fh-hagenberg.at Date: Tue Aug 27 20:40:26 2019 +0200

Text overhaul for ECDH plugin

    Text in Public parameters group is now displayed nicer
    Made changes necessary and also added a Util class with
    string/other useful operations so it doesn't clutter up
    the rest.
    Layout should change according to text field size

commit e8cbde067a078540fa6355c8dbe4e6f54685dd57 Author: Michael Altenhuber michael.altenhuber@students.fh-hagenberg.at Date: Tue Jun 18 14:53:57 2019 +0200

Added minimum size for secret selection wizard

commit 499e6b758da5541506c394eecbfd70c061d2d12c Author: Michael Altenhuber michael.altenhuber@students.fh-hagenberg.at Date: Sat May 25 12:36:35 2019 +0200

Working commit: Layout changes of main view

    For detailled information about changes view newer commit which
    completes the layout changes

commit 6e110259332f396f8bdac0d24eafe0eabd3f841c Author: Michael Altenhuber michael.altenhuber@students.fh-hagenberg.at Date: Wed May 15 10:23:50 2019 +0200

Main view: changed colors slightly and fixed typo

commit 13638e612389ac312e0f2b54dc84be3d4d358e60 Author: Michael Altenhuber michael.altenhuber@students.fh-hagenberg.at Date: Wed May 15 10:21:36 2019 +0200

Changed font to new Fontservice.MonospacedFont

commit 6500a9589a9f341cb966486f887292f7f7030e43 Author: Michael Altenhuber michael.altenhuber@students.fh-hagenberg.at Date: Tue Apr 30 17:50:23 2019 +0200

Public Parameter Wizard: Added layout request

commit 3e9852b80d6721c212087eaab2dc1fcf16e801b8 Author: Michael Altenhuber michael.altenhuber@students.fh-hagenberg.at Date: Tue Apr 30 17:28:55 2019 +0200

Public Parameters: Fixed String internalization

commit 2c65905b74b87e951c64e08a9b47776eeed5ce05 Author: Michael Altenhuber michael.altenhuber@students.fh-hagenberg.at Date: Tue Apr 30 17:13:50 2019 +0200

Public Parameter Wizard:

    * Changed font to monospaced with JFaceResource for certain
      labels and texts
    * Added layouting and wrapping for long strings
    * Added spacing between long hex-strings for readability
    * Increased maximum size a little so all fits

commit 644ccee39bef1742964cef4c663fbcdf39a3b0a9 Author: Michael Altenhuber michael.altenhuber@students.fh-hagenberg.at Date: Tue Apr 30 14:46:51 2019 +0200

Added line wrap for Public Parameters Wizard

    Generator field would have been cut off, so a break and layout
    was added for long lines

commit 348069b1122dcce60565617177cb889bda2f48b1 Author: Michael Altenhuber michael.altenhuber@students.fh-hagenberg.at Date: Mon Apr 8 22:14:24 2019 +0200

Reworked the PublicParameterWizard

    Changes:

    * Fixed a bug where you could not select another Standard than
      ANSI X9.62 for large F(p) curves
    * Made various combo boxes read only which should do not change
    * Tried to fix the button switching state machine. The code was
      very entangled and you could quickly end in an error prone
      state where some parameters were wrong or missing.
    * Made a new "Generator" layout for large curves. There you
      only have one generator so the random generator button does
      not make any sense. Was removed and the combo box changed to
      simple text
    * F(2^m) now initializes with a valid curve
    * Set a minimum size on the window (600, 640)
    * Tried to make the code more clean and readable including more
      comments

    TODO/Known Bugs:

    * Text sometimes too large for the environment
    * The large generator group still has the wrong description
    * The hex strings are ugly (should be terminal font and all
      caps)
    * Entwined UI and Elliptic Curve logic code. Should generally be
      more cleaned up and simpliefied and removed from redundancies.

commit 9140896a213f61adea9d0054fca835fccfa79a8c Author: Michael Altenhuber michael.altenhuber@students.fh-hagenberg.at Date: Tue Mar 19 21:41:02 2019 +0100

Popups now appear on the display Jcryptool runs on

    Would previously appear on the main display

jcryptool / crypto

Refactoring of visual.ecdh #251