Contributing
============

This file describes a path to contribute to this project. Check out our
`CODE OF CONDUCT <./CODE_OF_CONDUCT.rst>`__.

Bug Reports and Feature Requests
--------------------------------

If you have encountered a problem with QDarkStyle or have an idea for a
new feature, please submit it to the `issue
tracker <https://github.com/ColinDuquesnoy/QDarkStyleSheet/issues>`__.

Contributing to QDarkStyle
--------------------------

The recommended way for new contributors to submit code to QDarkStyle is
to fork the repository on GitHub and then submit a pull request after
committing the changes. The pull request will then need to be approved
by one of the maintainers before it is merged into the main repository.

-  Check for open issues or open a fresh issue to start a discussion
   around a feature idea or a bug.

-  Fork `the
   repository <https://github.com/ColinDuquesnoy/QDarkStyleSheet>`__ on
   GitHub to start making your changes to the develop branch.

-  Write a test that shows that the bug was fixed or that the feature
   works as expected, or create a screenshot if you
   are changing the stylesheet evidencing the changes.

-  Send a pull request and bug the maintainer until it gets merged and
   published. Make sure to add yourself to `AUTHORS <./AUTHORS.rst>`__
   and the change(s) to `CHANGES <./CHANGES.rst>`__.

Getting Started
---------------

These are the basic steps needed to start developing on QDarkStyle.

-  Create an account on GitHub

-  Fork the main `QDarkStyle
   repository <https://github.com/ColinDuquesnoy/QDarkStyleSheet>`__
   using the GitHub interface.

-  Clone the forked repository to your machine

   .. code:: bash

      git clone https://github.com/USERNAME/qdarkstyle
      cd qdarkstyle

-  Checkout the appropriate branch

   .. code:: bash

      git checkout develop

-  Setup a virtual environment (not essential, but highly recommended).

   - Using virtualenv:

     .. code:: bash

        virtualenv ~/.venv
        . ~/.venv/bin/activate
        pip install -e .[develop]

   - Using conda (conda-forge):

     .. code:: bash

        conda create -n my-dev-env -c conda-forge python=3.8
        conda activate my-dev-env
        conda remove --force qdarkstyle # In case you have qdarkstyle installed
        conda install -c conda-forge watchdog qtsass
        pip install -e .[develop]


-  Create a new working branch. Choose any name you like

   .. code:: bash

      git checkout -b feature-xyz

-  Hands-on

   For tips on working with the code, see the Code Guide.

-  Test, test, test

   Testing is best done through ``tox``, which provides several
   targets and allows testing against multiple different Python
   environments:

-  Add you and your changes

   Please add a list item to `CHANGES <./CHANGES.rst>`__ if the fix or
   feature is not trivial (small doc updates, typo fixes). Please add
   you as an author to `AUTHORS <./AUTHORS.rst>`__.

-  Add files to commit

   Add files that are part of your changes, remember that each commit
   must represent a small but functional change. Remember to add
   CHANGES.rst and AUTHORS.rst too. To add all files changed do:

   .. code:: bash

      git add .

-  Committing changes.

   GitHub recognizes certain phrases that can be used to automatically
   update the issue tracker, so you can commit like this:

   .. code:: bash

      git commit -m "Add useful new feature that does this, close #42"

      git commit -m "Fix returning problem for get_style(), fix #78"

-  Push changes in the branch to your forked repository on GitHub.

   .. code:: bash

      git push origin feature-xyz

-  Submit a pull request (PR).

   Do it from your branch to the respective branch using the `GitHub
   PR <https://github.com/ColinDuquesnoy/QDarkStyleSheet/pulls>`__
   interface.

-  Wait for a maintainer to review your changes.

Logging
-------

Inside modules, we provided logging that should be used to inform the
user. Please, follow the levels below.

-  debug: for debug information, a highly detailed one, directed to
   programmers;

-  info: something important for a common user to know;

-  warning: something that should not be a big problem or a decision
   changed;

-  error: some error, but not capable of stopping program;

-  critical: something that could stop the running program.

Documentation
-------------

Documentation is the key to keep all information and necessary
instructions to others. We use the reStructured text format (rst) for
all docs.

All new functions, classes, files, must be documented with all
arguments, returns, exceptions. Without this, it should not pass the
tests.

A better example is to see the current files to get the style. We are
using Google Format and Sphinx for generating the docs.

Guide to QDarkStyle
-------------------

Structure of the Example
~~~~~~~~~~~~~~~~~~~~~~~~

Now you can use our example to work on the stylesheet. It has all
possible widgets provided by Qt - common ones. Feel free to add more to
them.

To simplify the structure, there are separated files in
`qdarkstyle/example/ui <https://github.com/ColinDuquesnoy/QDarkStyleSheet/tree/master/qdarkstyle/example/ui>`__
folder.

-  ``dw_buttons.ui``: all types of buttons;
-  ``dw_containers_no_tabs.ui``: all types of containers except for
   tabs;
-  ``dw_containers_tabs.ui``: all containers tabs;
-  ``dw_displays.ui``: all types of displays;
-  ``dw_inputs_fields.ui``: all types of inputs with fields;
-  ``dw_inputs_no_fields.ui``: all types of inputs without fields;
-  ``dw_views.ui``: all types of views;
-  ``dw_widgets.ui``: all types of widgets;
-  ``mw_menus.ui``: main window with all menus and toolbars.

*Note*: ``dw`` stands for dock widget and ``mw`` for the main window.

The entire example is built at runtime, in
`qdarkstyle.example <https://github.com/ColinDuquesnoy/QDarkStyleSheet/blob/master/qdarkstyle/example/__main__.py>`__.
To see more information about it, see its reference.

Feel free to modify UI files with Qt Designer.

Modifying QSS File
~~~~~~~~~~~~~~~~~~

If you are changing the
`stylesheet <https://github.com/ColinDuquesnoy/QDarkStyleSheet/blob/master/qdarkstyle/qss/_styles.scss>`__,
you will need to recompile the QRC files using
`qdarkstyle.utils <https://github.com/ColinDuquesnoy/QDarkStyleSheet/blob/master/qdarkstyle/utils/__main__.py>`__.

This generates all resources files (images), ``style.qrc``,
``_variables.scss``, ``style.qss``, and finally ``style_rc.py``
for each palette.

Making It Easy
~~~~~~~~~~~~~~

To simplify this process for the developer, if you are changing many
things, use the script
`run\_ui\_css\_edition.py <https://github.com/ColinDuquesnoy/QDarkStyleSheet/blob/master/script/run_ui_css_edition.py>`__:

.. code:: bash

   python scripts/run_ui_css_edition.py

This creates a loop that restarts the application, processes ui and css
files.

For more information about those scripts, see their documentation.

Qt, Stylesheets, Palettes and Icons
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

-  `Box model <http://doc.qt.io/qt-5/images/stylesheet-boxmodel.png>`__
-  `Box model with height and
   width <https://www.tutorialrepublic.com/lib/images/css-box-model.jpg>`__
-  `Customizing
   Widgets <http://doc.qt.io/qt-5/stylesheet-customizing.html>`__
-  `Window
   structure <http://doc.qt.io/qt-5/images/mainwindowlayout.png>`__
-  `QMainWindow <http://doc.qt.io/qt-5/qmainwindow.html>`__
-  `References <http://doc.qt.io/qt-5/stylesheet.html>`__

Create good palettes with these tools. For example, on Paletton, choose
three colors from grayish light (foreground), grayish dark (background)
and three more colorful colors (selection). Grayish colors have a little
bit of the main color, so it is nice to change it if you change the main
color.

-  `Paletton.com <http://paletton.com/>`__
-  `Coolors.co <https://coolors.co/>`__

As a minimal guide to create new icons (svg) images, we list two main
sources.

-  `Material <https://material.io/design/iconography/product-icons.html#grid-keyline-shapes>`__
-  `KDE <https://hig.kde.org/style/icon.html>`__

Main characteristics of SVG images are:

-  Base size: 32px X 32px;
-  Border: 2px space, except continuous lines;
-  Corners and line end's: rounded;
-  Line: 2px minimum thickness. Complementary thickness using multiples
   of 2px;
-  Spacing: 4px when needed;
-  Color: #ff0000, red for all images - programmatically changed;
-  Keep only structural changes in images, not colors, e.g, states hover
   and disabled;
-  Lines and shapes should align with the grid centralized;
-  Names: from basic form to specific, so they keep grouped. Ex.:
   arrow\_left, arrow\_up.

Some examples are given below for the horizontal Handle, Minimize, and
checked Checkbox.

.. raw:: html

   <table style="width:100%">

.. raw:: html

   <tr>

::

    <th colspan=3>Examples of icons</th>

.. raw:: html

   </tr>

.. raw:: html

   <tr>

::

    <td><img src="./images/icon_checkbox_indeterminated.png"/></td>
    <td><img src="./images/icon_minimize.png"/></td>
    <td><img src="./images/move.png"/></td>

.. raw:: html

   </tr>

.. raw:: html

   </table>

Unit Testing and Fix Preview
----------------------------

It is a good practice, if you are writing functions to QDarkStyle or
fixing something related to those functions (not style), that you
provide a test for it.

If you are fixing something about style, please, at least, provide an
screenshot before and after the fix for comparison. This could be
inserted in the issue tracker, as a message. Better than that, use
modules provided in test folder to create a GUI test, creating a new
file for it.

Check `test <./test>`__ files to more details. Tests will keep our
application stable.

If You Are a Maintainer, Go Ahead to Production
----------------------------------------------

Of course, until you start these steps, make sure the package have
passed all tests and checkers before continuing. You must have accounts to
both test and official PyPI website below along with be inserted as a
maintainer in both.

1. Install ``twine``

   ``pip install twine``

2. Generate a distribution (code package and wheel)

   ``python setup.py sdist bdist_wheel``

3. Check with ``twine``, which also tests README format for PyPI

   ``twine check dist/*``

4. Try upload in `PyPI test
   page <https://test.pypi.org/project/QDarkStyle>`__ platform before
   the official

   ``twine upload --repository-url https://test.pypi.org/legacy/ dist/*``

5. Try to install from test

   ``pip install --no-deps --index-url https://test.pypi.org/simple/ qdarkstyle``

6. Then, remove it

   ``pip uninstall qdarkstyle -y``

7. Upload to `PyPI official
   page <https://pypi.python.org/pypi/QDarkStyle>`__

   ``twine upload --repository-url https://upload.pypi.org/legacy/ dist/*``

8. Try to install from official

   ``pip install qdarkstyle``

You can also use the tox environment to produce the release and upload
the distribution.

.. code:: bash

   tox -e release
